Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2018	Apr. 24, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Weatherford International plc
Entity Central Index Key	0001603923
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		996,749,190
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Products	$ 501	$ 511
Services	922	875
Total Revenues	1,423	1,386
Costs and Expenses:
Cost of Products	465	486
Cost of Services	680	720
Research and Development	38	39
Selling, General and Administrative Attributable to Segments	200	230
Corporate General and Administrative	36	33
Asset Write-Downs and Other	18	17
Restructuring and Transformation Charges	25	75
Total Costs and Expenses	1,462	1,600
Operating Income (Loss)	(39)	(214)
Other Income (Expense):
Interest Expense, Net	(149)	(141)
Warrant Fair Value Adjustment	46	(62)
Bond Tender Premium, Net	(34)	0
Currency Devaluation Charges	(26)	0
Other Income (Expense), Net	(8)	7
Loss Before Income Taxes	(210)	(410)
Income Tax Provision	(32)	(33)
Net Loss	(242)	(443)
Net Income Attributable to Noncontrolling Interests	3	5
Net Income (Loss) Attributable to Weatherford	$ (245)	$ (448)
Loss Per Share Attributable to Weatherford:
Earnings Per Share, Basic and Diluted	$ (0.25)	$ (0.45)
Weighted Average Shares Outstanding:
Weighted Average Number of Shares Outstanding, Basic and Diluted	994	988

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Loss	$ (242)	$ (443)
Other Comprehensive Income (Loss), Net of Tax:
Currency Translation Adjustments	5	63
Defined Benefit Pension Activity	0	(20)
Other Comprehensive Income (Loss)	5	43
Comprehensive Loss	(237)	(400)
Comprehensive Income Attributable to Noncontrolling Interests	3	5
Comprehensive Loss Attributable to Weatherford	$ (240)	$ (405)

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and Cash Equivalents	$ 459	$ 613
Accounts Receivable, Net of Allowance for Uncollectible Accounts of $149 in 2018 and $156 in 2017	1,100	1,103
Inventories, Net	1,225	1,234
Prepaid Expenses	127	237
Other Current Assets	335	332
Assets Held for Sale	369	359
Total Current Assets	3,615	3,878
Property, Plant and Equipment, Net of Accumulated Depreciation of $7,423 in 2018 and $7,462 in 2017	2,580	2,708
Goodwill	2,740	2,727
Other Intangible Assets, Net of Accumulated Amortization of $887 in 2018 and $870 in 2017	228	213
Equity Investments	26	62
Other Non-Current Assets	145	159
Total Assets	9,334	9,747
Current Liabilities:
Short-term Borrowings and Current Portion of Long-term Debt	153	148
Accounts Payable	809	856
Accrued Salaries and Benefits	311	308
Income Taxes Payable	201	228
Other Current Liabilities	618	690
Total Current Liabilities	2,092	2,230
Long-term Debt	7,639	7,541
Other Non-Current Liabilities	501	547
Total Liabilities	10,232	10,318
Shareholders’ Equity:
Shares - Par Value $0.001; Authorized 1,356 shares, Issued and Outstanding 996 shares at March 31, 2018 and 993 shares at December 31, 2017	1	1
Capital in Excess of Par Value	6,676	6,655
Retained Deficit	(6,105)	(5,763)
Accumulated Other Comprehensive Loss	(1,514)	(1,519)
Weatherford Shareholders’ Equity	(942)	(626)
Noncontrolling Interests	44	55
Total Shareholders’ Equity	(898)	(571)
Total Liabilities and Shareholders’ Equity	$ 9,334	$ 9,747

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Allowance for Uncollectible Accounts	$ 149	$ 156
Noncurrent Assets:
Accumulated Depreciation of Property, Plant and Equipment	7,423
Accumulated Amortization of Other Intangible Assets	$ 887
Shareholders’ Equity:
Common Shares, Par Value (in USD)	$ 0.001	$ 0.001
Common Shares, Authorized (in shares)	1,356,000,000	1,356,000,000
Common Shares, Conditionally Authorized (in shares)	0	0
Common Shares, Issued (in shares)	996,000,000	993,000,000
Common Stock, Outstanding (in shares)	996,000,000	993,000,000
Treasury Shares, at cost (in shares)	0	0

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities:
Net Loss	$ (242)	$ (443)
Adjustments to Reconcile Net Loss to Net Cash Provided by (Used in) Operating Activities:
Depreciation and Amortization	147	208
Share-based compensation	13	24
Goodwill and Equity Investment Impairment	29	20
Restructuring Costs and Asset Impairment Charges	29	19
Provision for Doubtful Accounts	(7)	0
Bond Tender and Call Premium	(34)	0
Deferred Income Tax Provision	13	18
Currency Devaluation Charges	26	0
Warrant Fair Value Adjustment	(46)	62
Other, Net	1	(7)
Change in Operating Assets and Liabilities, Net of Effect of Businesses Acquired:
Accounts Receivable	23	51
Inventories	(13)	0
Other Current Assets	(7)	6
Accounts Payable	(55)	(48)
Accrued Litigation and Settlements	(8)	(30)
Other Current Liabilities	(56)	(38)
Other, Net	(66)	(21)
Net Cash Used in Operating Activities	(185)	(179)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	(29)	(40)
Capital Expenditures and Acquisition of Assets Held for Sale	(9)	(240)
Acquisitions of Businesses, Net of Cash Acquired	4	0
Acquisition of Intellectual Property	(3)	(2)
Proceeds from Sale of Assets	12	4
Proceeds (Payments) from Sale of Businesses, Net	25	(1)
Net Cash Used in Investing Activities	0	(279)
Cash Flows From Financing Activities:
Borrowings of Long-term Debt	588	0
Repayments of Long-term Debt	(440)	(18)
Repayments of Short-term Debt, Net	(54)	(7)
Bond Tender Premium	(30)	0
Other Financing Activities	(10)	(11)
Net Cash Provided by (Used in) Financing Activities	54	(36)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(23)	3
Net Decrease in Cash and Cash Equivalents	(154)	(491)
Cash and Cash Equivalents at Beginning of Period	613	1,037
Cash and Cash Equivalents at End of Period	459	546
Supplemental Cash Flow Information:
Interest Paid	174	144
Income Taxes Paid, Net of Refunds	$ 47	$ 43

General	3 Months Ended
General	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General The accompanying unaudited Condensed Consolidated Financial Statements of Weatherford International plc (the “Company” or “Weatherford Ireland”) are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and include all adjustments (consisting of normal recurring adjustments) which, in our opinion, are considered necessary to present fairly our Condensed Consolidated Balance Sheets at March 31, 2018 and Consolidated Financial Statements at December 31, 2017, and Condensed Consolidated Statements of Operations, Condensed Consolidated Statements of Comprehensive Loss and Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2018 and 2017. When referring to “Weatherford” and using phrases such as “we,” “us,” and “our,” the intent is to refer to Weatherford International plc, a public limited company organized under the law of Ireland, and its subsidiaries as a whole or on a regional basis, depending on the context in which the statements are made. Although we believe the disclosures in these financial statements are adequate, certain information relating to our organization and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in this Form 10-Q pursuant to U.S. Securities and Exchange Commission (“SEC”) rules and regulations. These financial statements should be read in conjunction with the audited Consolidated Financial Statements for the year ended December 31, 2017 included in our Annual Report on Form 10-K. The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results expected for the year ending December 31, 2018. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements, the reported amounts of revenues and expenses during the reporting period, and disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates and assumptions, including those related to uncollectible accounts receivable, lower of cost or net realizable value of inventories, equity investments, derivative financial instruments, intangible assets and goodwill, property, plant and equipment (“PP&E”), income taxes, accounting for long-term contracts, self-insurance, foreign currency exchange rates, pension and post-retirement benefit plans, disputes, litigation, contingencies and share-based compensation. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates. Principles of Consolidation We consolidate all wholly-owned subsidiaries, controlled joint ventures and variable interest entities where the Company has determined it is the primary beneficiary. Investments in affiliates in which we exercise significant influence over operating and financial policies are accounted for using the equity method. All material intercompany accounts and transactions have been eliminated in consolidation. Reclassifications Certain prior year income statement amounts have been reclassified to conform to the current year presentation related to the adoption of new accounting standards. Net income for 2017 and shareholders’ equity as of December 31, 2017 were not affected by these reclassifications. See “Note 2 – New Accounting Pronouncements” for additional details. Currency Devaluation Charges Currency devaluation charges are included in current earnings in “Currency Devaluation Charges” on the accompanying Condensed Consolidated Statements of Operations. In the first quarter of 2018, currency devaluation charges of $26 million reflected the impact of the devaluation of the Angolan kwanza of $24 million and the Venezuelan bolivar of $2 million. In the first quarter of 2017, we had no currency devaluation charges. The devaluation of the Angolan kwanza was due to a change in the central bank policy in January 2018.

New Accounting Pronouncements

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements

Accounting Changes

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which replaced most existing revenue recognition guidance in U.S. GAAP. We adopted the new guidance and all of the related amendments, collectively Topic 606, using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. We recognized the cumulative effect of initially applying the new guidance as an adjustment to the opening balance of retained earnings as of January 1, 2018. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The impact of the adoption of the new guidance is immaterial to our consolidated net loss.

The primary impact on adopting Topic 606 on our Condensed Consolidated Financial Statements is in our Well Construction product line, where we receive customer payments related to the demobilization of drilling equipment and crew. Under the adoption of Topic 606, we now recognize revenue on demobilization equally over the term of the contract, subject to any constraint as discussed in “Note 3 – Revenues” to our Condensed Consolidated Financial Statements. Prior to the adoption of Topic 606, we recognized demobilization revenue once the service was completed. These changes did not have any impact on our Condensed Consolidated Statements of Cash Flows.

The cumulative effect of the changes made to our January 1, 2018 Condensed Consolidated Balance Sheet for the adoption of Topic 606, were as follows:



(Dollars in millions)	Balance at December 31, 2017			Adjustments Due to Topic 606		Balance at January 1, 2018
Assets and Liabilities:
Other Current Assets	$	332		$	10	$	342
Other Current Liabilities	690			2		692

Shareholders’ Equity:
Retained Deficit	(5,763		)	8		(5,755		)

The impact of adopting Topic 606 on the Company’s Condensed Consolidated Financial Statements for the quarter ended March 31, 2018 was less than $1 million.

In March 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which amends the presentation of net periodic pension and postretirement benefit costs (“net benefit cost”). The service cost component of net benefit cost will be bifurcated and presented with other employee compensation costs, while other components of net benefit costs will be presented separately outside of income from operations. We adopted ASU 2017-07 in the first quarter of 2018 on a retrospective basis which resulted in the reclassification $18 million of income from “Total Costs and Expenses” to “Other Income (Expense), net” on our Condensed Consolidated Statements of Operations.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which eliminates a current exception in U.S. GAAP to the recognition of the income tax effects of temporary differences that result from intra-entity transfers of non-inventory assets. We adopted ASU 2016-16 in the first quarter of 2018 on a modified retrospective basis. The impact that this new standard has on our Consolidated Financial Statements is a reversal of $105 million of prepaid taxes through retained earnings. Prospectively, any taxes accrued that result from the intra-entity transfers of non-inventory assets will be recognized in current tax expense.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which reduces diversity in practice as to how certain transactions are classified in the statement of cash flows. We adopted ASU 2016-15 in the first quarter of 2018 on a retrospective basis and the adoption of this ASU has no material impact on our Condensed Consolidated Statement of Cash Flows.

Accounting Standards Issued Not Yet Adopted

In February 2018, the FASB issued ASU 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The standard is required to be applied in the period of adoption or on a retrospective basis to each period affected, and will be effective beginning in the first quarter of 2019, although early adoption is permitted. We are evaluating the impact that this new standard will have on our Consolidated Financial Statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires a lessee to recognize a lease asset and lease liability for most leases, including those classified as operating leases under existing U.S. GAAP. The ASU also changes the definition of a lease and requires expanded quantitative and qualitative disclosures for both lessees and lessors.

Under ASU 2016-02, and all the related amendments, we will revise our leasing policies to require most of the leases, where we are the lessee, to be recognized on the balance sheet as a lease asset and lease liability whereas currently we do not recognize operating leases on our balance sheet. Further, we will separate leases from other contracts where we are either the lessor or lessee when the rights conveyed under the contract indicate there is a lease, where we may not be required to do so under existing policies. While we cannot calculate the impact ASU 2016-02 will have on Weatherford’s financial statements, we anticipate that Weatherford’s assets and liabilities will increase by a significant amount.

This standard will be effective for us beginning with the first quarter of 2019. We do not anticipate adopting ASU 2016-02 early, which is permitted under the standard. ASU 2016-02 requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective transition method but permits certain practical expedients to be applied, which may exclude certain leases that commenced before the effective date.

Revenues

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Revenues

Revenue Recognition

The majority of our revenue is derived from short term contracts. We account for revenue in accordance with Topic 606, which we adopted on January 1, 2018, using the modified retrospective method. We recognized the cumulative effect of initially applying the new guidance as an adjustment to the opening balance of retained earnings. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. See Note 2 – New Accounting Pronouncements for further discussion of the adoption, including the impact on our 2018 Condensed Consolidated Financial Statements.

Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

The following tables disaggregate our product and service revenues from contracts with customers by major product line and geographic region for the three months ended March 31, 2018:



	Three Months Ended March 31, 2018
	(Unaudited)
(Dollars in millions)	Western Hemisphere		Eastern Hemisphere		Total Excluding Rental Revenues		Rental Revenues		Total Revenues
Product Lines:

Production	$	286	$	95	$	381	$	—	$	381
Completions	157		136		293		1		294
Drilling and Evaluation	156		194		350		8		358
Well Construction	101		216		317		73		390
Total	$	700	$	641	$	1,341	$	82	$	1,423



	Three Months Ended March 31, 2018
(Dollars in millions)	(Unaudited)
Geographic Areas:

United States	$	345
Latin America	226
Canada	129
Western Hemisphere	700

Middle East & North Africa	363
Europe/Sub-Sahara Africa/Russia	222
Asia	56
Eastern Hemisphere	641

Total Product and Service Revenue before Rental Revenues	1,341
Rental Revenues	82
Total Revenues	$	1,423

Contract Balances

The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables, contract assets, and customer advances and deposits (contract liabilities classified as deferred revenues) on the Condensed Consolidated Balance Sheets.

Receivables for products and services with customers, under Topic 606, are included in “Accounts Receivable, Net”, contract assets in “Other Current Assets” and contract liabilities in ”Other Current Liabilities” on our Condensed Consolidated Balance Sheets.

The following table provides information about receivables for product and services included in “Accounts Receivable, Net” at March 31, 2018 and January 1, 2018, respectively:

Consideration under certain contracts such as turnkey or lump sum contracts may be classified as contract assets as the invoicing occurs once the performance obligations have been satisfied while the customer simultaneously receives and consumes the benefits provided. We also have receivables for work completed but not billed in which the rights to consideration are conditional and would be classified as contract assets. These are primarily related to service contracts and are not material to our Condensed Consolidated Financial Statements. We may also have contract liabilities, and defer revenues for certain product sales that are not distinct from their installation.

We did not recognize any revenues during the three months ended March 31, 2018 related to performance obligations satisfied prior to January 1, 2018.

Significant changes in the contract assets and liabilities balances during the period are as follows:



(Dollars in millions)	Contract Assets			Contract Liabilities
Balance, as of January 1, 2018	$	10		$	42
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	—			(20		)
Increase due to cash received, excluding amount recognized as revenue during the period	—			25
Increase due to revenue recognized during the period but contingent on future performance	6			—
Transferred to receivables from contract assets recognized at the beginning of the period	(1		)	—
Balance, as of March 31, 2018	$	15		$	47

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

Our principal business is to provide equipment and services to the oil and natural gas exploration and production industry, both on land and offshore, through our major product lines: Production, Completions, Drilling and Evaluation and Well Construction.

Generally, our revenue is recognized for services over time as the services are rendered and we primarily utilize an output method such as time elapsed or footage drilled which coincides with how customers receive the benefit. Both contract drilling and pipeline service revenue is contractual by nature and generally governed by day-rate based contracts. Revenue is recognized on product sales at a point in time when control passes and is generally upon delivery but is dependent on the terms of the contract.

Our services and products are generally sold based upon purchase orders, contracts or call-out work orders that include fixed per unit prices or variable consideration but do not generally include right of return provisions or other significant post-delivery obligations. We generally bill our sales of services and products upon completion of the performance obligation. Product sales are billed and recognized when control passes to the customer. Our products are produced in a standard manufacturing operation, even if produced to our customer’s specifications. Services are billed and recognized as revenue at the amount to which we have the right to invoice for services performed. Our payment terms vary by the type and location of our customer and the products or services offered. The term between invoicing and when payment is due is not significant. For certain products or services and customer types, we require payment before the products or services are delivered to the customer. We defer revenue recognition on such payments when the products or services are delivered to the customer.

From time to time, we may enter into bill and hold arrangements. When we enter into these arrangements, we determine if the customer has obtained control of the product by determining (a) the reason for the bill-and-hold arrangement; (b) whether the product is identified separately as belonging to the customer; (c) whether the product is ready for physical transfer to the customer; and (d) whether we are unable to utilize the product or direct it to another customer.

We account for individual products and services separately if they are distinct and the product or service is separately identifiable from other items in the contract and if a customer can benefit from it on its own or with other resources that are readily available to the customer. The consideration, including any discounts, is allocated between separate products and services based on their standalone selling prices. The standalone selling prices are determined based on the prices at which we separately sell our products and services. For items not sold separately (e.g. term software licenses in our Production product line), we estimate standalone selling prices using the adjusted market assessment approach.

Up-front payments for preparation and mobilization of equipment and personnel in connection with new drilling contracts are deferred along with any related incremental costs incurred directly related to preparation and mobilization. The deferred revenue and costs are recognized over the contract term using the straight-line method. Costs of relocating equipment without contracts are expensed as incurred. Demobilization fees received are recognized over the contract period and may be constrained to the amount that it is probable a significant reversal in the fees will not occur. When determining if such variable consideration should be constrained, management considers whether there are factors outside the Company’s control that could result in a significant reversal of revenue as well as the likelihood and magnitude of such a potential reversal.

The nature of our contracts gives rise to several types of variable consideration, including claims and lost-in-hole charges. Our claims are not significant and lost-in-hole charges are constrained variable consideration. We do not estimate revenue associated with these types of variable consideration.

We incur rebillable expenses including shipping and handling, third-party inspection and repairs, and customs costs and duties. We recognize the revenue associated with these rebillable expenses when reimbursed by customers as Product Revenues and all related costs as “Cost of Products” in the accompanying Condensed Consolidated Statements of Operations.

We provide certain assurance warranties on product sales which range from one to five years but do not offer extended warranties on any of our products or services. These assurance warranties are not separate performance obligations, thus no portion of the transaction price is allocated to our obligations under the assurance warranties.

In the following table, estimated revenue expected to be recognized in the future related to performance obligations that are either unsatisfied or partially unsatisfied as of March 31, 2018 relate to subsea services, an artificial lift contract, long-term early production facility construction contracts and rigs demobilization:



(Dollars in millions)	2018		2019	2020	2021	Thereafter	Total
Service revenue	$	80	51	20	—	—	$	151

All consideration from contracts with customers is included in the amounts presented above.

Practical Expedients

We generally expense sales commissions paid when incurred as a result of obtaining a contract because the amortization period would have been one year or less. These costs are recorded within “Selling, General and Administrative Attributable to Segments” on our Condensed Consolidated Statements of Operations.

We do not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

Business Combinations and Divestitures	3 Months Ended
Business Combinations and Divestitures	Mar. 31, 2018
Business Acquisition [Line Items]
Business Combination Disclosure [Text Block]	Business Combinations and Divestitures Acquisitions On March 26, 2018, we acquired the remaining 50% equity interest in our Qatar joint venture that we previously accounted for as an equity method investment. The joint venture was established in 2008 to provide energy related services required for the drilling and completion of oil and gas wells at onshore and offshore locations within the State of Qatar. The total consideration to purchase the remaining equity interest was $87 million, comprised of cash consideration of $72 million, of which $48 million was paid in accordance with closing terms through the joint venture, an additional payment of $24 million that will be made 2 years from closing and estimated contingent consideration of $15 million payable related to services the Qatar entity will render under new contracts. As a result of this step acquisition transaction with a change in control, we remeasured our previously held equity investment to fair value, recognizing a $12 million gain. The Level 3 fair value of the acquisition was determined using an income approach. The unobservable inputs to the income approach included the Qatar entity’s estimated future cash flows and estimates of discount rates commensurate with the entity’s risks. Upon acquisition, we recognized intangible assets of $26 million, PP&E of $25 million, goodwill of $23 million, other current assets of $16 million, and other liabilities of $43 million as a result of the purchase accounting assessment. The Qatar entity is consolidated and its revenues and net income subsequent to acquisition during the quarter were immaterial. Divestitures In March 2018, we completed the sale of our continuous sucker rod service business in Canada for a total amount of $25 million in cash and recognized a gain of $2 million. The carrying amounts of the major classes of assets sold are PP&E of $14 million, allocated goodwill of $8 million and inventory of $1 million. Held for Sale During the fourth quarter of 2017, we committed to a plan to divest our land drilling rigs assets. As a result, we reclassified the carrying amounts of the assets we plan to divest as held for sale as of March 31, 2018 and December 31, 2017, which included $276 million of PP&E and other assets and $64 million of inventory. As of March 31, 2018, we also classified $29 million of other PP&E as held for sale, primarily real estate.

Restructuring and Transformation Charges

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Restructuring Charges

Restructuring and Transformation Charges

Due to the ongoing lower than anticipated levels of exploration and production spending, we continue to reduce our overall cost structure and workforce to better align with current activity levels. The ongoing cost reduction plans, which began in 2018 and are expected to continue through 2019 (the “Transformation Plan”), included a workforce reduction, organization restructure, facility consolidations and other cost reduction measures and efficiency initiatives across our geographic regions.

In connection with the Transformation Plan, we recognized restructuring and transformation charges of $25 million in the first quarter of 2018, which include termination (severance) charges of $11 million and other restructuring charges of $14 million. Other restructuring charges include contract termination costs, relocation and other associated costs.

In connection with the 2016-17 Plan, we recognized restructuring charges of $75 million in the first quarter of 2017, which include termination (severance) charges of $34 million, other restructuring charges of $29 million and restructuring related asset charges of $12 million. Other restructuring charges include contract termination costs, relocation and other associated costs.

The following tables present the components of restructuring charges by segment for the first quarter of 2018 and 2017.



	Three Months Ended March 31, 2018
					Total
(Dollars in millions)	Severance		Other		Severance and
Transformation Plan	Charges		Charges		Other Charges
Western Hemisphere	$	4	$	—	$	4
Eastern Hemisphere	4		5		9
Corporate	3		9		12
Total	$	11	$	14	$	25



	Three Months Ended March 31, 2017
					Total
(Dollars in millions)	Severance		Other		Severance and
2016-17 Plan	Charges		Charges		Other Charges
Western Hemisphere	$	5	$	18	$	23
Eastern Hemisphere	7		19		26
Corporate	22		4		26
Total	$	34	$	41	$	75

The severance and other restructuring charges gave rise to certain liabilities, the components of which are summarized below, and largely relate to liabilities accrued as part of the 2016-17 and Prior Plans that will be paid pursuant to the respective arrangements and statutory requirements.



	At March 31, 2018
	Transformation Plan				2016-17 and Prior Plans				Total
									Severance
	Severance		Other		Severance		Other		and Other
(Dollars in millions)	Liability		Liability		Liability		Liability		Liability
Western Hemisphere	$	—	$	—	$	2	$	14	$	16
Eastern Hemisphere	2		1		3		20		26
Corporate	2		6		10		—		18
Total	$	4	$	7	$	15	$	34	$	60

The following table presents the restructuring liability activity for the first three months of 2018.



			Three Months Ended March 31, 2018
(Dollars in millions)	Accrued Balance at December 31, 2017		Charges		Cash Payments			Other			Accrued Balance at March 31, 2018
Transformation Plan
Severance liability	$	—	$	11	$	(8	)	$	1		$	4
Other restructuring liability	—		$	14	$	(6	)	$	(1	)	$	7

2016-17 and Prior Plans:
Severance liability	21		—		(7		)	1			15
Other restructuring liability	40		—		(5		)	(1		)	34
Total severance and other restructuring liability	$	61	$	25	$	(26	)	$	—		$	60

Accounts Receivable Factoring and Other Receivables	3 Months Ended
Accounts Receivable Factoring and Other Receivables	Mar. 31, 2018
Receivables [Abstract]
Accounts Receivable Factoring and Other Receivables	Accounts Receivable Factoring and Other Receivables From time to time, we participate in factoring arrangements to sell accounts receivable to third-party financial institutions. In the first three months of 2018, we sold accounts receivable of $96 million and recognized a loss of approximately $0.6 million on these sales. We received cash proceeds totaling $93 million. In the first three months of 2017, we sold approximately $38 million and recognized a loss of $0.2 million. Our factoring transactions in the first three months of 2018 and 2017 were recognized as sales, and the proceeds are included as operating cash flows in our Condensed Consolidated Statements of Cash Flows. In the first quarter of 2017, Weatherford converted trade receivables of $65 million into a note from the customer with a face value of $65 million. The note had a three year term at a 4.625% stated interest rate. We reported the note as a trading security within “Other Current Assets” at fair value on the Condensed Consolidated Balance Sheets at its fair value of $58 million on March 31, 2017. The note fair value was considered a Level 2 valuation and was estimated using secondary market data for similar bonds. During the second quarter of 2017, we sold the note for $59 million.

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Inventories, Net

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories, Net

Inventories, net of reserves, by category were as follows:



(Dollars in millions)	March 31, 2018		December 31, 2017
Raw materials, components and supplies	$	158	$	144
Work in process	53		47
Finished goods	1,014		1,043
	$	1,225	$	1,234

Goodwill

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill by reportable segment for the three months ended March 31, 2018, were as follows:



(Dollars in millions)	Western Hemisphere			Eastern Hemisphere		Total
Balance at December 31, 2017	$	1,958		$	769	$	2,727
Acquisitions	—			23		23
Dispositions	(8		)	—		(8		)
Foreign currency translation adjustments	(21		)	19		(2		)
Balance at March 31, 2018	$	1,929		$	811	$	2,740

Short-term Borrowings and Other Debt Obligations

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Short-term Borrowings and Other Debt Obligations

Short-Term Borrowings and Other Debt Obligations



(Dollars in millions)	March 31, 2018		December 31, 2017
Revolving Credit Agreement	$	25	$	—
Other Short-term Loans	4		11
Current Portion of Long-term Debt	124		137
Short-term Borrowings and Current Portion of Long-term Debt	$	153	$	148

Revolving Credit Agreement and Secured Term Loan Agreement

At March 31, 2018, we had total commitments under our revolving credit facility (the “Revolving Credit Agreement”) maturing in July of 2019 of $900 million and borrowings of $363 million under our secured term loan agreement (“the Term Loan Agreement and collectively with the Revolving Credit Agreement, the “Credit Agreements”) maturing in July of 2020. At March 31, 2018, we had $744 million available under the Credit Agreements and the following table summarizes our borrowing availability under these agreements:



(Dollars in millions)	March 31, 2018
Facilities	$	1,263
Less uses of facilities:
Revolving Credit Agreement	25
Letters of Credit	131
Secured Term Loan Principal Borrowing	363
Borrowing Availability	$	744

Loans under the Credit Agreements are subject to varying interest rates based on whether the loan is a Eurodollar or alternate base rate loan. We also incur a quarterly facility fee on the amount of the Revolving Credit Agreement. For the three months ended March 31, 2018, the interest rate for the Revolving Credit Agreement was LIBOR plus a margin rate of 2.80%. For the three months ended March 31, 2018, the interest rate for the Term Loan Agreement was LIBOR plus a margin rate of 2.30%.

Our Credit Agreements contain customary events of default, including in the event of our failure to comply with our financial covenants. We must maintain a leverage ratio of no greater than 2.5 to 1, a leverage and letters of credit ratio of no greater than 3.5 to 1, and an asset coverage ratio of at least 4.0 to 1, in each case with the terms and definitions for the ratios as provided in the Credit Agreements. At March 31, 2018, we were in compliance with these financial covenants. For additional information on our credit agreement covenants, please see “Note 12 – Short-term Borrowings and Other Debt Obligations” to the Condensed Consolidated Financial Statements contained in our Annual Report on Form 10-K for the year ended December 31, 2017.

Senior Notes and Tender Offers

In February 2018, we issued $600 million in aggregate principal amount of our 9.875% senior notes due 2025. We used part of the proceeds from our debt offering to repay in full our 6.00% senior notes due March 2018 and to fund a concurrent tender offer to purchase for cash any and all of our 9.625% senior notes due 2019. We settled the tender offer in cash for the amount of $475 million, retiring an aggregate face value of $425 million and accrued interest of $20 million. In April 2018, we repaid the remaining principal outstanding on an early redemption of the bond. We recognized a cumulative loss of $34 million on these transactions in “Bond Tender and Call Premium” on the accompanying Condensed Consolidated Statements of Operations.

Other Borrowings and Debt Activity

We have short-term borrowings with various domestic and international institutions pursuant to uncommitted credit facilities. At March 31, 2018, we had $4 million in short-term borrowings under these arrangements. In addition, we had $356 million of letters of credit under various uncommitted facilities and $131 million of letters of credit under the Revolving Credit Agreement. At March 31, 2018, we have cash collateralized $89 million of our letters of credit, which is included “Cash and Cash Equivalents” in the accompanying Condensed Consolidated Balance Sheets. We have $15 million of surety bonds, primarily performance bonds, issued by financial sureties against an indemnification from us at March 31, 2018.

Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Financial Instruments Measured and Recognized at Fair Value

We estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability. Our valuation techniques require inputs that we categorize using a three level hierarchy, from highest to lowest level of observable inputs. Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 inputs are quoted prices or other market data for similar assets and liabilities in active markets, or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based upon our own judgment and assumptions used to measure assets and liabilities at fair value. Classification of a financial asset or liability within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement. Other than the derivative instruments discussed in “Note 11 – Derivative Instruments”, we had no other material assets or liabilities measured and recognized at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

Fair Value of Other Financial Instruments

Our other financial instruments include cash and cash equivalents, accounts receivable, accounts payable, and short-term borrowings and long-term debt. The carrying value of our cash and cash equivalents, accounts receivable, accounts payable, short-term borrowings approximates their fair value due to their short maturities. These short-term borrowings are classified as Level 2 in the fair value hierarchy.

The fair value of our long-term debt fluctuates with changes in applicable interest rates among other factors. Fair value will generally exceed carrying value when the current market interest rate is lower than the interest rate at which the debt was originally issued and will generally be less than the carrying value when the market rate is greater than the interest rate at which the debt was originally issued. The fair value of our long-term debt is classified as Level 2 in the fair value hierarchy and is established based on observable inputs in less active markets.

The fair value and carrying value of our senior notes were as follows:



(Dollars in millions)	March 31, 2018		December 31, 2017
Fair Value	$	6,376	$	7,060
Carrying Value	7,319		7,218

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Derivative Instruments

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

From time to time, we may enter into derivative financial instrument transactions to manage or reduce our market risk. We manage our debt portfolio to achieve an overall desired position of fixed and floating rates, and we may employ interest rate swaps as a tool to achieve that goal. We enter into foreign currency forward contracts and cross-currency swap contracts to economically hedge our exposure to fluctuations in various foreign currencies. The major risks from interest rate derivatives include changes in the interest rates affecting the fair value of such instruments, potential increases in interest expense due to market increases in floating interest rates, changes in foreign exchange rates and the creditworthiness of the counterparties in such transactions.

We monitor the creditworthiness of our counterparties, which are multinational commercial banks. The fair values of all our outstanding derivative instruments are determined using a model with Level 2 inputs including quoted market prices for contracts with similar terms and maturity dates.

Warrant

During the fourth quarter of 2016, in conjunction with the issuance of 84.5 million ordinary shares, we issued a warrant that gives the holder the option to acquire an additional 84.5 million ordinary shares. The exercise price on the warrant is $6.43 per share and is exercisable any time prior to May 21, 2019. The warrant is classified as a liability and carried at fair value with changes in its fair value reported through earnings. The warrant participates in dividends and other distributions as if the shares subject to the warrants were outstanding. In addition, the warrant permits early redemption due to a change in control.

The warrant fair value is considered a Level 3 valuation and is estimated using a combination of the Black Scholes option valuation model and Monte-Carlo simulation. Inputs to these models include Weatherford’s share price and volatility and the risk free interest rate. The valuation also considers the probabilities of future share issuances and anticipated issuance discounts, which are considered Level 3 inputs. The fair value of the warrant was $24 million on March 31, 2018 and $70 million on December 31, 2017, generating an unrealized gain of $46 million and unrealized loss of $62 million for the first quarter of 2018 and 2017, respectively. The change in fair value of the warrant during the first quarter of 2018 was principally due to a decrease in Weatherford’s stock price. The warrant valuation would be negatively affected due to an increase in the likelihood of a future stock issuance.

Fair Value Hedges

We may use interest rate swaps to help mitigate exposures related to changes in the fair values of the fixed-rate debt. The interest rate swap is recorded at fair value with changes in fair value recorded in earnings. The carrying value of fixed-rate debt is also adjusted for changes in interest rates, with the changes in value recorded in earnings. After termination of the hedge, any discount or premium on the fixed-rate debt is amortized to interest expense over the remaining term of the debt. As of March 31, 2018, we did not have any fair value hedges designated.

As of March 31, 2018, we had net unamortized premiums on fixed-rate debt of nil associated with fair value hedge terminations. These premiums were being amortized over the remaining term of the originally hedged debt as a reduction in interest expense included in “Interest Expense, Net” on the accompanying Condensed Consolidated Statements of Operations.

Cash Flow Hedges

In 2008, we entered into interest rate derivative instruments to hedge projected exposures to interest rates in anticipation of a debt offering. These hedges were terminated at the time of the issuance of the debt, and the associated loss is being amortized from “Accumulated Other Comprehensive Loss” to interest expense over the remaining term of the debt. As of March 31, 2018, we had net unamortized losses of $9 million associated with our cash flow hedge terminations. As of March 31, 2018, we did not have any cash flow hedges designated.

Foreign Currency and Warrant Derivative Instruments

At March 31, 2018 and December 31, 2017, we had outstanding foreign currency forward contracts with notional amounts aggregating to $734 million and $767 million, respectively. The notional amounts of our foreign currency forward contracts do not generally represent amounts exchanged by the parties and thus are not a measure of the cash requirements related to these contracts or of any possible loss exposure. The amounts actually exchanged at maturity are calculated by reference to the notional amounts and by other terms of the derivative contracts, such as exchange rates.

Our foreign currency derivatives are not designated as hedges under ASC 815, and the changes in fair value of the contracts are recorded each period in “Other Income (Expense), Net” on the accompanying Condensed Consolidated Statements of Operations.

The total estimated fair values of our foreign currency forward contracts and warrant derivative were as follows:



(Dollars in millions)	March 31, 2018			December 31, 2017			Classification
Derivative assets not designated as hedges:
Foreign currency forward contracts	$	3		$	5		Other Current Assets

Derivative liabilities not designated as hedges:
Foreign currency forward contracts	(2		)	(4		)	Other Current Liabilities
Warrant on Weatherford Shares	(24		)	(70		)	Other Non-Current Liabilities

The amount of derivative instruments’ gain or (loss) on the Condensed Consolidated Statements of Operations is in the table below.



	Three Months Ended March 31,
(Dollars in millions)	2018		2017			Classification
Foreign currency forward contracts	$	1	$	(7	)	Other Income (Expense), Net
Warrant on Weatherford Shares	46		(62		)	Warrant Fair Value Adjustment

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We have historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full fiscal year to ordinary income or loss (pre-tax income or loss excluding unusual or infrequently occurring discrete items and pre-tax losses for which no benefit has been recognized) for the reporting period. Beginning in first quarter of 2017 and continuing for the three months period ended March 31, 2018, we have determined that since small changes in estimated ordinary annual income would result in significant changes in the estimated annual effective tax rate, the use of a discrete effective tax rate is appropriate for the current quarter. The discrete method treats the year-to-date period as if it was the annual period and determines the income tax expense or benefit on that basis. We will continue to use this method each quarter until the annual effective tax rate method is deemed appropriate. For the first quarter of 2018, we had a tax expense of $32 million on a loss before income taxes of $210 million. Results for the first quarter of 2018 include losses with no significant tax benefit. The tax expense for the quarter also includes withholding taxes and deemed profit taxes that do not directly correlate to ordinary income or loss. On December 22, 2017, the U.S. enacted into law a comprehensive tax reform bill (the “Tax Cuts and Jobs Act,” or “TCJA”). The TCJA significantly revises the U.S. corporate income tax by, among other things, lowering the statutory corporate tax rate from 35% to 21%, eliminating certain deductions, imposing a mandatory one-time tax on accumulated earnings of foreign subsidiaries as of 2017 held in cash and illiquid assets (with the latter taxed at a lower rate), and a shift of the U.S. taxation of multinational corporations from a tax on worldwide income to a partial territorial system (along with certain rules designed to prevent erosion of the U.S. income tax base, such as the base erosion and anti-abuse tax). The SEC has issued guidance that allows for a measurement period of up to one year after the enactment date of the legislation to finalize the recording of the related tax impacts. In the fourth quarter of 2017, the Company did not have all the necessary information to analyze all effects of this tax reform, as a result we recorded a provisional amount which we believe represents a reasonable estimate of the accounting implications of this tax reform. In addition, the various impacts of the TCJA may materially differ from the estimated impacts recognized in the fourth quarter due to regulatory guidance that may be issued in the future, tax law technical corrections, refined computations, and possible changes in the Company’s interpretations, assumptions, and actions as a result of the tax legislation. No adjustment to the provisional amount was recorded in the first quarter of 2018. We will continue to evaluate tax reform, and adjust the provisional amounts as additional information is obtained. Any adjustment to these provisional amounts will be reported in the reporting period in which any such adjustments are determined, which will be no later than the fourth quarter of 2018. We are continuously under tax examination in various jurisdictions. We cannot predict the timing or outcome regarding resolution of these tax examinations or if they will have a material impact on our financial statements. We continue to anticipate a possible reduction in the balance of uncertain tax positions of approximately $19 million in the next twelve months due to expiration of statutes of limitations, settlements and/or conclusions of tax examinations. For the first quarter of 2017, we had a tax expense of $33 million on a loss before income taxes of $410 million. Results for the first quarter of 2017 include losses with no significant tax benefit. The tax expense for the quarter also included withholding taxes and deemed profit taxes that do not directly correlate to ordinary income or loss.

Shareholders' Equity

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

The following summarizes our shareholders’ equity activity for the first three months of 2018 and 2017:



(Dollars in millions)	Par Value of Issued Shares		Capital in Excess of Par Value		Retained Earnings (Deficit)			Accumulated Other Comprehensive Income (Loss)			Non-controlling Interests			Total Shareholders’ Equity
Balance at December 31, 2016	$	1	$	6,571	$	(2,950	)	$	(1,610	)	$	56		$	2,068
Net Income (Loss)	—		—		(448		)	—			5			(443		)
Other Comprehensive Income	—		—		—			43			—			43
Dividends Paid to Noncontrolling Interests	—		—		—			—			(5		)	(5		)
Equity Awards Granted, Vested and Exercised	—		28		—			—			—			28
Balance at March 31, 2017	$	1	$	6,599	$	(3,398	)	$	(1,567	)	$	56		$	1,691

Balance at December 31, 2017	$	1	$	6,655	$	(5,763	)	$	(1,519	)	$	55		$	(571	)
Net Income (Loss)	—		—		(245		)	—			3			(242		)
Other Comprehensive Income	—		—		—			5			—			5
Dividends Paid to Noncontrolling Interests	—		—		—			—			(4		)	(4		)
Equity Awards Granted, Vested and Exercised	—		17		—			—			—			17
Adoption of Intra-Entity Transfers of Assets Other Than Inventory and Revenue from Contracts with Customers	—		—		(97		)	—			—			(97		)
Other	—		4		—			—			(10		)	(6		)
Balance at March 31, 2018	$	1	$	6,676	$	(6,105	)	$	(1,514	)	$	44		$	(898	)

The following table presents the changes in our accumulated other comprehensive loss by component for the first three months of 2018 and 2017:



(Dollars in millions)	Currency Translation Adjustment			Defined Benefit Pension			Deferred Loss on Derivatives			Total
Balance at December 31, 2016	$	(1,614	)	$	13		$	(9	)	$	(1,610	)

Other Comprehensive Income before Reclassifications	63			—			—			63
Reclassifications	—			(20		)	—			(20		)
Net activity	63			(20		)	—			43

Balance at March 31, 2017	$	(1,551	)	$	(7	)	$	(9	)	$	(1,567	)

Balance at December 31, 2017	$	(1,484	)	$	(26	)	$	(9	)	$	(1,519	)

Other Comprehensive Income before Reclassifications	5			—			—			5
Reclassifications	—			—			—			—
Net activity	5			—			—			5

Balance at March 31, 2018	$	(1,479	)	$	(26	)	$	(9	)	$	(1,514	)

Defined benefit pension reclassifications relate to amortization of unrecognized net gains associated primarily with our supplemental executive retirement plan.

Earnings per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings per Share

Basic earnings per share for all periods presented equals net income (loss) divided by the weighted average number of our shares outstanding during the period including participating securities. Diluted earnings (loss) per share is computed by dividing net income (loss) by the weighted average number of our shares outstanding during the period including participating securities and potentially dilutive shares. The following table presents our basic and diluted weighted average shares outstanding for the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Shares in millions)	2018	2017
Basic and Diluted weighted average shares outstanding	994	988

Our basic and diluted weighted average shares outstanding for the periods presented are equivalent due to the net loss attributable to shareholders. Diluted weighted average shares outstanding for the first quarter of 2018 and 2017 exclude potential shares for stock options, restricted shares, performance units, exchangeable notes, warrant outstanding and the Employee Stock Purchase Plan as we have net losses for those periods and their inclusion would be anti-dilutive. The following table discloses the number of anti-dilutive shares excluded for the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Shares in millions)	2018	2017
Anti-dilutive potential shares due to net loss	250	250

Share-Based Compensation

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

We recognized the following employee share-based compensation expense during the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Dollars in millions)	2018		2017
Share-based compensation	$	13	$	24
Related tax benefit	—		—

During the first quarter of 2018, we granted to certain employees 1.3 million performance share units that will vest with continued employment if the Company meets certain market-based goals. These performance share units have a weighted average grant date fair value of $5.41 per share based on the Monte Carlo simulation method. The assumptions used in the Monte Carlo simulation included a weighted average risk-free rate of 2.28%, volatility of 63% and a zero dividend yield. We also granted 1.3 million performance shares that will vest with continued employment if the Company meets a certain performance goal. These performance share units have a weighted average grant date fair value of $3.94. As of March 31, 2018, there was $16 million of unrecognized compensation expense related to our performance share units. This cost is expected to be recognized over a weighted average period of 2 years.

During the first quarter of 2018, we also granted 2.9 million restricted share units at a weighted average grant date fair value of $3.89 per share. As of March 31, 2018, there was $55 million of unrecognized compensation expense related to our unvested restricted share grants. This cost is expected to be recognized over a weighted average period of 2 years.

Segment Information

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Information

Financial information by segment is summarized below. Revenues are attributable to countries based on the ultimate destination of the sale of products or performance of services. The accounting policies of the segments are the same as those described in the summary of significant accounting policies as presented in our Form 10-K.



	Three Months Ended March 31, 2018
(Dollars in millions)	Revenues		Income (Loss) from Operations			Depreciation and Amortization
Western Hemisphere	$	756	$	24		$	60
Eastern Hemisphere	667		16			86
	1,423		40			146
Corporate General and Administrative			(36		)	1
Restructuring and Transformation Charges			(25		)
Asset Write-Downs and Other ^(a)			(18		)
Total	$	1,423	$	(39	)	$	147


(a)	Includes asset write-downs and inventory charges, partially offset by gain on purchase of the remaining interest in a joint venture.



	Three Months Ended March 31, 2017
(Dollars in millions)	Revenues		Loss from Operations			Depreciation and Amortization
Western Hemisphere	$	733	$	(30	)	$	91
Eastern Hemisphere	653		(59		)	115
	1,386		(89		)	206
Corporate General and Administrative			(33		)	2
Restructuring Charges			(75		)
Asset Write-Downs and Other ^(b)			(17		)
Total	$	1,386	$	(214	)	$	208


(b)	Includes asset write-downs and inventory charges.

Disputes, Litigation and Contingencies	3 Months Ended
Disputes, Litigation and Contingencies	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Disputes, Litigation and Contingencies	Disputes, Litigation and Contingencies Shareholder Litigation In 2010, three shareholder derivative actions were filed, purportedly on behalf of the Company, asserting breach of duty and other claims against certain current and former officers and directors of the Company related to the United Nations oil-for-food program governing sales of goods into Iraq, the Foreign Corrupt Practices Act of 1977 and trade sanctions related to the U.S. government investigations disclosed in our SEC filings since 2007. Those shareholder derivative cases were filed in Harris County, Texas state court and consolidated under the caption Neff v. Brady, et al., No. 2010040764 (collectively referred to as the “Neff Case”). Other shareholder demand letters covering the same subject matter were received by the Company in early 2014, and a fourth shareholder derivative action was filed, purportedly on behalf of the Company, also asserting breach of duty and other claims against certain current and former officers and directors of the Company related to the same subject matter as the Neff Case. That case, captioned Erste-Sparinvest KAG v. Duroc-Danner, et al., No. 201420933 (Harris County, Texas) was consolidated into the Neff Case in September 2014. A motion to dismiss was granted May 15, 2015, and an appeal was filed on June 15, 2015. Following briefing and oral argument, on June 29, 2017, the Texas Court of Appeals denied in part and granted in part the shareholders’ appeal. The Court ruled that the shareholders lacked standing to bring claims that arose prior to the Company’s redomestication to Switzerland in 2009, and upheld the dismissal of those claims. The Court reversed as premature the trial court’s dismissal of claims arising after the redomestication and remanded to the trial court for further proceedings. On February 1, 2018, the individual defendants and nominal defendant Weatherford filed a motion for summary judgment on the remaining claims in the case. On February 13, 2018 the trial court dismissed with prejudice certain directors for lack of jurisdiction. The plaintiffs have appealed the jurisdictional ruling and the parties have jointly moved for a stay of the case during the pendency of the appeal. We cannot reliably predict the outcome of the remaining claims, including the amount of any possible loss. U.S. Government and Other Investigations The SEC and the U.S. Department of Justice investigated certain accounting issues associated with the material weakness in our internal control over financial reporting for income taxes that was disclosed in a notification of late filing on Form 12b-25 filed on March 1, 2011 and in current reports on Form 8-K filed on February 21, 2012 and on July 24, 2012 and the subsequent restatements of our historical financial statements. As disclosed in the Form 8-K filed on September 27, 2016, the Company settled with the SEC without admitting or denying the findings of the SEC, by consenting to the entry of an administrative order that requires the Company to cease and desist from committing or causing any violations and any future violations of the anti-fraud provisions of the Securities Act of 1933 (as amended, the “Securities Act”), and the anti-fraud, reporting, books and records, and internal controls provisions of the Securities Exchange Act of 1934 (as amended, the “Exchange Act”), and the rules promulgated thereunder. As part of the terms of the SEC settlement, the Company agreed to pay in installments a total civil monetary penalty of $140 million, beginning in the fourth quarter of 2016 and concluding in September 2017. In addition, certain reports and certifications regarding our tax internal controls were to be delivered to the SEC during the two years following the settlement. We completed and delivered the third and final report in April of 2018. Rapid Completions and Packers Plus Litigation Several subsidiaries of the Company are defendants in a patent infringement lawsuit filed by Rapid Completions LLC (“RC”) in U.S. District Court for the Eastern District of Texas on July 31, 2015. RC claims that we and other defendants are liable for infringement of seven U.S. patents related to specific downhole completion equipment and the methods of using such equipment. These patents have been assigned to Packers Plus Energy Services, Inc., a Canadian corporation (“Packers Plus”), and purportedly exclusively licensed to RC. RC is seeking a permanent injunction against further alleged infringement, unspecified damages for infringement, supplemental and enhanced damages, and additional relief such as attorneys’ fees. The Company has filed a counterclaim against Packers Plus, seeking declarations of non-infringement, invalidity, and unenforceability of the four patents that remain asserted against the Company on the grounds of inequitable conduct. The Company is seeking attorneys’ fees and costs incurred in the lawsuit. The litigation was stayed, pending resolution of inter partes reviews (“IPR”) of each of the four patents before the Patent Trial and Appeal Board (“PTAB”) of the U.S. Patent and Trademark Office (“USPTO”). On February 22, 2018, the PTAB issued IPR decisions finding that all of the claims of the ‘505, ‘634, and ‘774 patents that were challenged by the Company in the IPRs are invalid. There is one more pending IPR relating to the ‘501 patent. Given the similarities among the four patents, the Company believes it will obtain a favorable outcome in the remaining IPR. RC has appealed the PTAB’s decisions. On October 14, 2015, Packers Plus and RC filed suit in Federal Court in Toronto, Canada against the Company and certain subsidiaries alleging infringement of a related Canadian patent and seeking unspecified damages and an accounting of the Company’s profits. Trial on the validity of the Canadian patent was completed in March 2017. On November 3, 2017, the Federal Court issued its decision, wherein it concluded that the defendants proved that the patent-in-suit was invalid and dismissed Packers Plus and RC’s claims of infringement. On January 5, 2018, Packers Plus and RC filed their Notice of Appeal. If one or more negative outcomes were to occur in either case, the impact to our financial position, results of operations, or cash flows could be material. Other Disputes and Litigation We are aware of various other disputes and potential claims and are a party in various litigation involving claims against us, some of which are covered by insurance. For claims, disputes and pending litigation in which we believe a negative outcome is probable and a loss can be reasonably estimated, we have recorded a liability for the expected loss. These liabilities are immaterial to our financial condition and results of operations. In addition we have certain claims, disputes and pending litigation for which we do not believe a negative outcome is probable or for which we can only estimate a range of liability. It is possible, however, that an unexpected judgment could be rendered against us, or we could decide to resolve a case or cases, that would result in liability that could be uninsured and beyond the amounts we currently have reserved and in some cases those losses could be material. If one or more negative outcomes were to occur relative to these matters, the aggregate impact to our financial condition could be material. Accrued litigation and settlements recorded in “Other Current Liabilities” on the accompanying Condensed Consolidated Balance Sheets as of March 31, 2018 and December 31, 2017 were $47 million and $51 million, respectively. Other Contingencies We have minimum purchase commitments related to supply contracts and maintain a liability at March 31, 2018 of $47 million for expected penalties to be paid, of which $22 million is recorded in “Other Current Liabilities,” $25 million is recorded in “Other Non-Current Liabilities” on our Condensed Consolidated Balance Sheets.

Condensed Consolidating Financial Statements

3 Months Ended

Mar. 31, 2018

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Consolidating Financial Statements

Weatherford International plc (“Weatherford Ireland”), a public limited company organized under the laws of Ireland, a Swiss tax resident, and the ultimate parent of the Weatherford group, guarantees the obligations of its subsidiaries – Weatherford International Ltd., a Bermuda exempted company (“Weatherford Bermuda”), and Weatherford International, LLC, a Delaware limited liability company (“Weatherford Delaware”), including the notes and credit facilities listed below.

The 6.80% senior notes due 2037 of Weatherford Delaware were guaranteed by Weatherford Bermuda at March 31, 2018 and December 31, 2017. At March 31, 2018, Weatherford Bermuda also guaranteed the 9.875% senior notes due 2025.

The following obligations of Weatherford Bermuda were guaranteed by Weatherford Delaware at March 31, 2018 and December 31, 2017: (1) Revolving Credit Agreement, (2) Term Loan Agreement, (3) 9.625% senior notes due 2019, which were repaid in full through early redemption of the bond in April 2018 (4) 6.50% senior notes due 2036, (5) 7.00% senior notes due 2038, (6) 9.875% senior notes due 2039, (7) 5.125% senior notes due 2020, (8) 6.75% senior notes due 2040, (9) 4.50% senior notes due 2021, (10) 5.95% senior notes due 2042, (11) 5.875% exchangeable senior notes due 2021, (12) 7.75% senior notes due 2021, (13) 8.25% senior notes due 2023 and (14) 9.875% senior notes due 2024. At December 31, 2017, Weatherford Delaware also guaranteed the 6.00% senior notes due 2018, which were repaid in full in March 2018.

As a result of certain of these guarantee arrangements, we are required to present the following condensed consolidating financial information. The accompanying guarantor financial information is presented on the equity method of accounting for all periods presented. Under this method, investments in subsidiaries are recorded at cost and adjusted for our share in the subsidiaries’ cumulative results of operations, capital contributions and distributions and other changes in equity. Elimination entries relate primarily to the elimination of investments in subsidiaries and associated intercompany balances and transactions.

Condensed Consolidating Statement of Operations and

Comprehensive Income (Loss)

Three Months Ended March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Revenues	$	—		$	—		$	—		$	1,423		$	—		$	1,423
Costs and Expenses	2			—			—			(1,464		)	—			(1,462		)
Operating Income (Loss)	2			—			—			(41		)	—			(39		)

Other Income (Expense):
Interest Expense, Net	—			(144		)	(14		)	4			5			(149		)
Intercompany Charges, Net	(18		)	(3		)	11			(594		)	604			—
Equity in Subsidiary Income (Loss)	(275		)	(350		)	(133		)	—			758			—
Other, Net	46			90			122			(157		)	(123		)	(22		)
Income (Loss) Before Income Taxes	(245		)	(407		)	(14		)	(788		)	1,244			(210		)
(Provision) Benefit for Income Taxes	—			—			—			(32		)	—			(32		)
Net Income (Loss)	(245		)	(407		)	(14		)	(820		)	1,244			(242		)
Noncontrolling Interests	—			—			—			3			—			3
Net Income (Loss) Attributable to Weatherford	$	(245	)	$	(407	)	$	(14	)	$	(823	)	$	1,244		$	(245	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(240	)	$	(401	)	$	(2	)	$	(818	)	$	1,221		$	(240	)

Condensed Consolidating Statement of Operations and

Comprehensive Income (Loss)

Three Months Ended March 31, 2017

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Revenues	$	—		$	—		$	—		$	1,386		$	—		$	1,386
Costs and Expenses	(3		)	20			—			(1,617		)	—			(1,600		)
Operating Income (Loss)	(3		)	20			—			(231		)	—			(214		)

Other Income (Expense):
Interest Expense, Net	—			(139		)	(21		)	4			15			(141		)
Intercompany Charges, Net	1			(8		)	(2		)	9			—			—
Equity in Subsidiary Income	(384		)	172			219			—			(7		)	—
Other, Net	(62		)	(216		)	(139		)	223			139			(55		)
Income (Loss) Before Income Taxes	(448		)	(171		)	57			5			147			(410		)
(Provision) Benefit for Income Taxes	—			—			—			(33		)	—			(33		)
Net Income (Loss)	(448		)	(171		)	57			(28		)	147			(443		)
Noncontrolling Interests	—			—			—			5			—			5
Net Income (Loss) Attributable to Weatherford	$	(448	)	$	(171	)	$	57		$	(33	)	$	147		$	(448	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(405	)	$	(176	)	$	(26	)	$	10		$	192		$	(405	)

Condensed Consolidating Balance Sheet

March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda		Weatherford Delaware		Other Subsidiaries		Eliminations			Consolidation
Current Assets:
Cash and Cash Equivalents	$	—		$	106	$	—	$	353	$	—		$	459
Other Current Assets	1			—		506		3,191		(542		)	3,156
Total Current Assets	1			106		506		3,544		(542		)	3,615

Equity Investments in Affiliates	(810		)	7,647		7,718		794		(15,349		)	—
Intercompany Receivables, Net	—			—		—		3,139		(3,139		)	—
Other Assets	—			7		5		5,707		—			5,719
Total Assets	$	(809	)	$	7,760	$	8,229	$	13,184	$	(19,030	)	$	9,334

Current Liabilities:
Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	137	$	—	$	16	$	—		$	153
Accounts Payable and Other Current Liabilities	7			142		—		2,332		(542		)	1,939
Total Current Liabilities	7			279		—		2,348		(542		)	2,092

Long-term Debt	—			6,643		758		154		84			7,639
Intercompany Payables, Net	102			258		2,779		—		(3,139		)	—
Other Long-term Liabilities	24			23		14		454		(14		)	501
Total Liabilities	133			7,203		3,551		2,956		(3,611		)	10,232

Weatherford Shareholders’ Equity	(942		)	557		4,678		10,184		(15,419		)	(942		)
Noncontrolling Interests	—			—		—		44		—			44
Total Liabilities and Shareholders’ Equity	$	(809	)	$	7,760	$	8,229	$	13,184	$	(19,030	)	$	9,334

Condensed Consolidating Balance Sheet

December 31, 2017



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda		Weatherford Delaware		Other Subsidiaries		Eliminations			Consolidation
Current Assets:
Cash and Cash Equivalents	$	—		$	195	$	—	$	418	$	—		$	613
Other Current Assets	1			—		516		3,298		(550		)	3,265
Total Current Assets	1			195		516		3,716		(550		)	3,878

Equity Investments in Affiliates	(460		)	7,998		8,009		530		(16,077		)	—
Intercompany Receivables, Net	—			—		—		4,213		(4,213		)	—
Other Assets	—			8		4		5,857		—			5,869
Total Assets	$	(459	)	$	8,201	$	8,529	$	14,316	$	(20,840	)	$	9,747

Current Liabilities:
Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	128	$	—	$	20	$	—		$	148
Accounts Payable and Other Current Liabilities	10			183		—		2,439		(550		)	2,082
Total Current Liabilities	10			311		—		2,459		(550		)	2,230

Long-term Debt	—			7,127		166		159		89			7,541
Intercompany Payables, Net	87			242		3,884		—		(4,213		)	—
Other Long-term Liabilities	70			146		136		332		(137		)	547
Total Liabilities	167			7,826		4,186		2,950		(4,811		)	10,318

Weatherford Shareholders’ Equity	(626		)	375		4,343		11,311		(16,029		)	(626		)
Noncontrolling Interests	—			—		—		55		—			55
Total Liabilities and Shareholders’ Equity	$	(459	)	$	8,201	$	8,529	$	14,316	$	(20,840	)	$	9,747

Condensed Consolidating Statement of Cash Flows

Three Months Ended March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Cash Flows from Operating Activities:
Net Income (Loss)	$	(245	)	$	(407	)	$	(14	)	$	(820	)	$	1,244		$	(242	)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	18			3			(11		)	594			(604		)	—
Equity in (Earnings) Loss of Affiliates	275			350			133			—			(758		)	—
Deferred Income Tax Provision (Benefit)	—			—			—			13						13
Other Adjustments	(10		)	467			(872		)	341			118			44
Net Cash Provided (Used) by Operating Activities	38			413			(764		)	128			—			(185		)
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(29		)	—			(29		)
Capital Expenditures for Assets Held for Sale	—			—			—			(9		)	—			(9		)
Acquisitions of Businesses, Net of Cash Acquired	—			—			—			4			—			4
Acquisition of Intellectual Property	—			—			—			(3		)	—			(3		)
Proceeds from Sale of Assets	—			—			—			12			—			12
Payment Related to Sale of Businesses, Net	—			—			—			25			—			25
Net Cash Provided (Used) by Investing Activities	—			—			—			—			—			—
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			(47		)	—			(7		)	—			(54		)
Borrowings (Repayments) Long-term Debt, Net	—			(438		)	588			(2		)	—			148
Borrowings (Repayments) Between Subsidiaries, Net	(38		)	(17		)	176			(121		)	—			—
Other, Net	—			—			—			(40		)	—			(40		)
Net Cash Provided (Used) by Financing Activities	(38		)	(502		)	764			(170		)	—			54
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			(23		)	—			(23		)
Net Increase (Decrease) in Cash and Cash Equivalents	—			(89		)	—			(65		)	—			(154		)
Cash and Cash Equivalents at Beginning of Period	—			195			—			418			—			613
Cash and Cash Equivalents at End of Period	$	—		$	106		$	—		$	353		$	—		$	459

Condensed Consolidating Statement of Cash Flows

Three Months Ended March 31, 2017

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Cash Flows from Operating Activities:
Net Income (Loss)	$	(448	)	$	(171	)	$	57		$	(28	)	$	147		$	(443	)
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	(1		)	8			2			(9		)	—			—
Equity in (Earnings) Loss of Affiliates	384			(172		)	(219		)	—			7			—
Deferred Income Tax Provision (Benefit)	—			—			—			18			—			18
Other Adjustments	24			220			186			(30		)	(154		)	246
Net Cash Provided (Used) by Operating Activities	(41		)	(115		)	26			(49		)	—			(179		)
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(40		)	—			(40		)
Acquisition of Assets Held for Sale	—			—			—			(240		)	—			(240		)
Acquisition of Intellectual Property	—			—			—			(2		)	—			(2		)
Proceeds from Sale of Assets and Businesses, Net	—			—			—			4			—			4
Proceeds (Payments) from Sale of Businesses, Net	—			—			—			(1		)	—			(1		)
Net Cash Provided (Used) by Investing Activities	—			—			—			(279		)	—			(279		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			—			—			(7		)	—			(7		)
Borrowings (Repayments) Long-term Debt, Net	—			(13		)	(1		)	(4		)	—			(18		)
Borrowings (Repayments) Between Subsidiaries, Net	42			(381		)	(28		)	367			—			—
Other, Net	—			—			—			(11		)	—			(11		)
Net Cash Provided (Used) by Financing Activities	42			(394		)	(29		)	345			—			(36		)
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			3			—			3
Net Increase (Decrease) in Cash and Cash Equivalents	1			(509		)	(3		)	20			—			(491		)
Cash and Cash Equivalents at Beginning of Period	—			586			4			447			—			1,037
Cash and Cash Equivalents at End of Period	$	1		$	77		$	1		$	467		$	—		$	546

- Definition

The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.

+ References + Details

General (Policies)	3 Months Ended
General (Policies)	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Accounting	The accompanying unaudited Condensed Consolidated Financial Statements of Weatherford International plc (the “Company” or “Weatherford Ireland”) are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and include all adjustments (consisting of normal recurring adjustments) which, in our opinion, are considered necessary to present fairly our Condensed Consolidated Balance Sheets at March 31, 2018 and Consolidated Financial Statements at December 31, 2017, and Condensed Consolidated Statements of Operations, Condensed Consolidated Statements of Comprehensive Loss and Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2018 and 2017. When referring to “Weatherford” and using phrases such as “we,” “us,” and “our,” the intent is to refer to Weatherford International plc, a public limited company organized under the law of Ireland, and its subsidiaries as a whole or on a regional basis, depending on the context in which the statements are made. Although we believe the disclosures in these financial statements are adequate, certain information relating to our organization and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted in this Form 10-Q pursuant to U.S. Securities and Exchange Commission (“SEC”) rules and regulations. These financial statements should be read in conjunction with the audited Consolidated Financial Statements for the year ended December 31, 2017 included in our Annual Report on Form 10-K. The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results expected for the year ending December 31, 2018.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements, the reported amounts of revenues and expenses during the reporting period, and disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates and assumptions, including those related to uncollectible accounts receivable, lower of cost or net realizable value of inventories, equity investments, derivative financial instruments, intangible assets and goodwill, property, plant and equipment (“PP&E”), income taxes, accounting for long-term contracts, self-insurance, foreign currency exchange rates, pension and post-retirement benefit plans, disputes, litigation, contingencies and share-based compensation. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates.
Principles of Consolidation	Principles of Consolidation We consolidate all wholly-owned subsidiaries, controlled joint ventures and variable interest entities where the Company has determined it is the primary beneficiary. Investments in affiliates in which we exercise significant influence over operating and financial policies are accounted for using the equity method. All material intercompany accounts and transactions have been eliminated in consolidation.
Reclassifications	Reclassifications Certain prior year income statement amounts have been reclassified to conform to the current year presentation related to the adoption of new accounting standards. Net income for 2017 and shareholders’ equity as of December 31, 2017 were not affected by these reclassifications. See “Note 2 – New Accounting Pronouncements” for additional details.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Currency Devaluation Charges Currency devaluation charges are included in current earnings in “Currency Devaluation Charges” on the accompanying Condensed Consolidated Statements of Operations. In the first quarter of 2018, currency devaluation charges of $26 million reflected the impact of the devaluation of the Angolan kwanza of $24 million and the Venezuelan bolivar of $2 million. In the first quarter of 2017, we had no currency devaluation charges. The devaluation of the Angolan kwanza was due to a change in the central bank policy in January 2018.

New Accounting Pronouncements New Accounting Pronouncements (Policies)

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements

Accounting Changes

The cumulative effect of the changes made to our January 1, 2018 Condensed Consolidated Balance Sheet for the adoption of Topic 606, were as follows:



(Dollars in millions)	Balance at December 31, 2017			Adjustments Due to Topic 606		Balance at January 1, 2018
Assets and Liabilities:
Other Current Assets	$	332		$	10	$	342
Other Current Liabilities	690			2		692

Shareholders’ Equity:
Retained Deficit	(5,763		)	8		(5,755		)

The impact of adopting Topic 606 on the Company’s Condensed Consolidated Financial Statements for the quarter ended March 31, 2018 was less than $1 million.

Accounting Standards Issued Not Yet Adopted

New Accounting Pronouncements (Tables)

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The cumulative effect of the changes made to our January 1, 2018 Condensed Consolidated Balance Sheet for the adoption of Topic 606, were as follows:



(Dollars in millions)	Balance at December 31, 2017			Adjustments Due to Topic 606		Balance at January 1, 2018
Assets and Liabilities:
Other Current Assets	$	332		$	10	$	342
Other Current Liabilities	690			2		692

Shareholders’ Equity:
Retained Deficit	(5,763		)	8		(5,755		)

Revenues (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following tables disaggregate our product and service revenues from contracts with customers by major product line and geographic region for the three months ended March 31, 2018:



	Three Months Ended March 31, 2018
	(Unaudited)
(Dollars in millions)	Western Hemisphere		Eastern Hemisphere		Total Excluding Rental Revenues		Rental Revenues		Total Revenues
Product Lines:

Production	$	286	$	95	$	381	$	—	$	381
Completions	157		136		293		1		294
Drilling and Evaluation	156		194		350		8		358
Well Construction	101		216		317		73		390
Total	$	700	$	641	$	1,341	$	82	$	1,423



	Three Months Ended March 31, 2018
(Dollars in millions)	(Unaudited)
Geographic Areas:

United States	$	345
Latin America	226
Canada	129
Western Hemisphere	700

Middle East & North Africa	363
Europe/Sub-Sahara Africa/Russia	222
Asia	56
Eastern Hemisphere	641

Total Product and Service Revenue before Rental Revenues	1,341
Rental Revenues	82
Total Revenues	$	1,423

Schedule of Contract with Customer, Asset and Liability

Significant changes in the contract assets and liabilities balances during the period are as follows:



(Dollars in millions)	Contract Assets			Contract Liabilities
Balance, as of January 1, 2018	$	10		$	42
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	—			(20		)
Increase due to cash received, excluding amount recognized as revenue during the period	—			25
Increase due to revenue recognized during the period but contingent on future performance	6			—
Transferred to receivables from contract assets recognized at the beginning of the period	(1		)	—
Balance, as of March 31, 2018	$	15		$	47

The following table provides information about receivables for product and services included in “Accounts Receivable, Net” at March 31, 2018 and January 1, 2018, respectively:

Schedule of Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction



(Dollars in millions)	2018		2019	2020	2021	Thereafter	Total
Service revenue	$	80	51	20	—	—	$	151

Restructuring and Transformation Charges (Tables)

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Charges

The following tables present the components of restructuring charges by segment for the first quarter of 2018 and 2017.



	Three Months Ended March 31, 2018
					Total
(Dollars in millions)	Severance		Other		Severance and
Transformation Plan	Charges		Charges		Other Charges
Western Hemisphere	$	4	$	—	$	4
Eastern Hemisphere	4		5		9
Corporate	3		9		12
Total	$	11	$	14	$	25



	Three Months Ended March 31, 2017
					Total
(Dollars in millions)	Severance		Other		Severance and
2016-17 Plan	Charges		Charges		Other Charges
Western Hemisphere	$	5	$	18	$	23
Eastern Hemisphere	7		19		26
Corporate	22		4		26
Total	$	34	$	41	$	75



	At March 31, 2018
	Transformation Plan				2016-17 and Prior Plans				Total
									Severance
	Severance		Other		Severance		Other		and Other
(Dollars in millions)	Liability		Liability		Liability		Liability		Liability
Western Hemisphere	$	—	$	—	$	2	$	14	$	16
Eastern Hemisphere	2		1		3		20		26
Corporate	2		6		10		—		18
Total	$	4	$	7	$	15	$	34	$	60

Schedule of Restructuring Reserve by Type of Cost



	At March 31, 2018
	Transformation Plan				2016-17 and Prior Plans				Total
									Severance
	Severance		Other		Severance		Other		and Other
(Dollars in millions)	Liability		Liability		Liability		Liability		Liability
Western Hemisphere	$	—	$	—	$	2	$	14	$	16
Eastern Hemisphere	2		1		3		20		26
Corporate	2		6		10		—		18
Total	$	4	$	7	$	15	$	34	$	60

The following table presents the restructuring liability activity for the first three months of 2018.



			Three Months Ended March 31, 2018
(Dollars in millions)	Accrued Balance at December 31, 2017		Charges		Cash Payments			Other			Accrued Balance at March 31, 2018
Transformation Plan
Severance liability	$	—	$	11	$	(8	)	$	1		$	4
Other restructuring liability	—		$	14	$	(6	)	$	(1	)	$	7

2016-17 and Prior Plans:
Severance liability	21		—		(7		)	1			15
Other restructuring liability	40		—		(5		)	(1		)	34
Total severance and other restructuring liability	$	61	$	25	$	(26	)	$	—		$	60

Inventories, Net (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Components of Inventory

Inventories, net of reserves, by category were as follows:



(Dollars in millions)	March 31, 2018		December 31, 2017
Raw materials, components and supplies	$	158	$	144
Work in process	53		47
Finished goods	1,014		1,043
	$	1,225	$	1,234

Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reportable segment for the three months ended March 31, 2018, were as follows:



(Dollars in millions)	Western Hemisphere			Eastern Hemisphere		Total
Balance at December 31, 2017	$	1,958		$	769	$	2,727
Acquisitions	—			23		23
Dispositions	(8		)	—		(8		)
Foreign currency translation adjustments	(21		)	19		(2		)
Balance at March 31, 2018	$	1,929		$	811	$	2,740

Short-term Borrowings and Other Debt Obligations (Tables)

3 Months Ended

Mar. 31, 2018

Line of Credit Facility [Line Items]

Schedule of Short-term Debt [Table Text Block]



(Dollars in millions)	March 31, 2018		December 31, 2017
Revolving Credit Agreement	$	25	$	—
Other Short-term Loans	4		11
Current Portion of Long-term Debt	124		137
Short-term Borrowings and Current Portion of Long-term Debt	$	153	$	148

Schedule of Line of Credit Facilities [Table Text Block]

At March 31, 2018, we had $744 million available under the Credit Agreements and the following table summarizes our borrowing availability under these agreements:



(Dollars in millions)	March 31, 2018
Facilities	$	1,263
Less uses of facilities:
Revolving Credit Agreement	25
Letters of Credit	131
Secured Term Loan Principal Borrowing	363
Borrowing Availability	$	744

Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The fair value and carrying value of our senior notes were as follows:



(Dollars in millions)	March 31, 2018		December 31, 2017
Fair Value	$	6,376	$	7,060
Carrying Value	7,319		7,218

Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivatives Instruments in Statements of Financial Performance and Financial Position

The total estimated fair values of our foreign currency forward contracts and warrant derivative were as follows:



(Dollars in millions)	March 31, 2018			December 31, 2017			Classification
Derivative assets not designated as hedges:
Foreign currency forward contracts	$	3		$	5		Other Current Assets

Derivative liabilities not designated as hedges:
Foreign currency forward contracts	(2		)	(4		)	Other Current Liabilities
Warrant on Weatherford Shares	(24		)	(70		)	Other Non-Current Liabilities

The amount of derivative instruments’ gain or (loss) on the Condensed Consolidated Statements of Operations is in the table below.



	Three Months Ended March 31,
(Dollars in millions)	2018		2017			Classification
Foreign currency forward contracts	$	1	$	(7	)	Other Income (Expense), Net
Warrant on Weatherford Shares	46		(62		)	Warrant Fair Value Adjustment

Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Schedule of Stockholders' Equity

The following summarizes our shareholders’ equity activity for the first three months of 2018 and 2017:



(Dollars in millions)	Par Value of Issued Shares		Capital in Excess of Par Value		Retained Earnings (Deficit)			Accumulated Other Comprehensive Income (Loss)			Non-controlling Interests			Total Shareholders’ Equity
Balance at December 31, 2016	$	1	$	6,571	$	(2,950	)	$	(1,610	)	$	56		$	2,068
Net Income (Loss)	—		—		(448		)	—			5			(443		)
Other Comprehensive Income	—		—		—			43			—			43
Dividends Paid to Noncontrolling Interests	—		—		—			—			(5		)	(5		)
Equity Awards Granted, Vested and Exercised	—		28		—			—			—			28
Balance at March 31, 2017	$	1	$	6,599	$	(3,398	)	$	(1,567	)	$	56		$	1,691

Balance at December 31, 2017	$	1	$	6,655	$	(5,763	)	$	(1,519	)	$	55		$	(571	)
Net Income (Loss)	—		—		(245		)	—			3			(242		)
Other Comprehensive Income	—		—		—			5			—			5
Dividends Paid to Noncontrolling Interests	—		—		—			—			(4		)	(4		)
Equity Awards Granted, Vested and Exercised	—		17		—			—			—			17
Adoption of Intra-Entity Transfers of Assets Other Than Inventory and Revenue from Contracts with Customers	—		—		(97		)	—			—			(97		)
Other	—		4		—			—			(10		)	(6		)
Balance at March 31, 2018	$	1	$	6,676	$	(6,105	)	$	(1,514	)	$	44		$	(898	)

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in our accumulated other comprehensive loss by component for the first three months of 2018 and 2017:



(Dollars in millions)	Currency Translation Adjustment			Defined Benefit Pension			Deferred Loss on Derivatives			Total
Balance at December 31, 2016	$	(1,614	)	$	13		$	(9	)	$	(1,610	)

Other Comprehensive Income before Reclassifications	63			—			—			63
Reclassifications	—			(20		)	—			(20		)
Net activity	63			(20		)	—			43

Balance at March 31, 2017	$	(1,551	)	$	(7	)	$	(9	)	$	(1,567	)

Balance at December 31, 2017	$	(1,484	)	$	(26	)	$	(9	)	$	(1,519	)

Other Comprehensive Income before Reclassifications	5			—			—			5
Reclassifications	—			—			—			—
Net activity	5			—			—			5

Balance at March 31, 2018	$	(1,479	)	$	(26	)	$	(9	)	$	(1,514	)

Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following table presents our basic and diluted weighted average shares outstanding for the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Shares in millions)	2018	2017
Basic and Diluted weighted average shares outstanding	994	988

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table discloses the number of anti-dilutive shares excluded for the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Shares in millions)	2018	2017
Anti-dilutive potential shares due to net loss	250	250

Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

We recognized the following employee share-based compensation expense during the first quarter of 2018 and 2017:



	Three Months Ended March 31,
(Dollars in millions)	2018		2017
Share-based compensation	$	13	$	24
Related tax benefit	—		—

Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Financial information by segment



	Three Months Ended March 31, 2018
(Dollars in millions)	Revenues		Income (Loss) from Operations			Depreciation and Amortization
Western Hemisphere	$	756	$	24		$	60
Eastern Hemisphere	667		16			86
	1,423		40			146
Corporate General and Administrative			(36		)	1
Restructuring and Transformation Charges			(25		)
Asset Write-Downs and Other ^(a)			(18		)
Total	$	1,423	$	(39	)	$	147


(a)	Includes asset write-downs and inventory charges, partially offset by gain on purchase of the remaining interest in a joint venture.



	Three Months Ended March 31, 2017
(Dollars in millions)	Revenues		Loss from Operations			Depreciation and Amortization
Western Hemisphere	$	733	$	(30	)	$	91
Eastern Hemisphere	653		(59		)	115
	1,386		(89		)	206
Corporate General and Administrative			(33		)	2
Restructuring Charges			(75		)
Asset Write-Downs and Other ^(b)			(17		)
Total	$	1,386	$	(214	)	$	208


(b)	Includes asset write-downs and inventory charges.

Condensed Consolidating Financial Statements (Tables)

3 Months Ended

Mar. 31, 2018

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Consolidating Statement of Operations

Condensed Consolidating Statement of Operations and

Comprehensive Income (Loss)

Three Months Ended March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Revenues	$	—		$	—		$	—		$	1,423		$	—		$	1,423
Costs and Expenses	2			—			—			(1,464		)	—			(1,462		)
Operating Income (Loss)	2			—			—			(41		)	—			(39		)

Other Income (Expense):
Interest Expense, Net	—			(144		)	(14		)	4			5			(149		)
Intercompany Charges, Net	(18		)	(3		)	11			(594		)	604			—
Equity in Subsidiary Income (Loss)	(275		)	(350		)	(133		)	—			758			—
Other, Net	46			90			122			(157		)	(123		)	(22		)
Income (Loss) Before Income Taxes	(245		)	(407		)	(14		)	(788		)	1,244			(210		)
(Provision) Benefit for Income Taxes	—			—			—			(32		)	—			(32		)
Net Income (Loss)	(245		)	(407		)	(14		)	(820		)	1,244			(242		)
Noncontrolling Interests	—			—			—			3			—			3
Net Income (Loss) Attributable to Weatherford	$	(245	)	$	(407	)	$	(14	)	$	(823	)	$	1,244		$	(245	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(240	)	$	(401	)	$	(2	)	$	(818	)	$	1,221		$	(240	)

Condensed Consolidating Statement of Operations and

Comprehensive Income (Loss)

Three Months Ended March 31, 2017

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Revenues	$	—		$	—		$	—		$	1,386		$	—		$	1,386
Costs and Expenses	(3		)	20			—			(1,617		)	—			(1,600		)
Operating Income (Loss)	(3		)	20			—			(231		)	—			(214		)

Other Income (Expense):
Interest Expense, Net	—			(139		)	(21		)	4			15			(141		)
Intercompany Charges, Net	1			(8		)	(2		)	9			—			—
Equity in Subsidiary Income	(384		)	172			219			—			(7		)	—
Other, Net	(62		)	(216		)	(139		)	223			139			(55		)
Income (Loss) Before Income Taxes	(448		)	(171		)	57			5			147			(410		)
(Provision) Benefit for Income Taxes	—			—			—			(33		)	—			(33		)
Net Income (Loss)	(448		)	(171		)	57			(28		)	147			(443		)
Noncontrolling Interests	—			—			—			5			—			5
Net Income (Loss) Attributable to Weatherford	$	(448	)	$	(171	)	$	57		$	(33	)	$	147		$	(448	)
Comprehensive Income (Loss) Attributable to Weatherford	$	(405	)	$	(176	)	$	(26	)	$	10		$	192		$	(405	)

Condensed Consolidating Balance Sheet

March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda		Weatherford Delaware		Other Subsidiaries		Eliminations			Consolidation
Current Assets:
Cash and Cash Equivalents	$	—		$	106	$	—	$	353	$	—		$	459
Other Current Assets	1			—		506		3,191		(542		)	3,156
Total Current Assets	1			106		506		3,544		(542		)	3,615

Equity Investments in Affiliates	(810		)	7,647		7,718		794		(15,349		)	—
Intercompany Receivables, Net	—			—		—		3,139		(3,139		)	—
Other Assets	—			7		5		5,707		—			5,719
Total Assets	$	(809	)	$	7,760	$	8,229	$	13,184	$	(19,030	)	$	9,334

Current Liabilities:
Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	137	$	—	$	16	$	—		$	153
Accounts Payable and Other Current Liabilities	7			142		—		2,332		(542		)	1,939
Total Current Liabilities	7			279		—		2,348		(542		)	2,092

Long-term Debt	—			6,643		758		154		84			7,639
Intercompany Payables, Net	102			258		2,779		—		(3,139		)	—
Other Long-term Liabilities	24			23		14		454		(14		)	501
Total Liabilities	133			7,203		3,551		2,956		(3,611		)	10,232

Weatherford Shareholders’ Equity	(942		)	557		4,678		10,184		(15,419		)	(942		)
Noncontrolling Interests	—			—		—		44		—			44
Total Liabilities and Shareholders’ Equity	$	(809	)	$	7,760	$	8,229	$	13,184	$	(19,030	)	$	9,334

Condensed Consolidating Balance Sheet

December 31, 2017



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda		Weatherford Delaware		Other Subsidiaries		Eliminations			Consolidation
Current Assets:
Cash and Cash Equivalents	$	—		$	195	$	—	$	418	$	—		$	613
Other Current Assets	1			—		516		3,298		(550		)	3,265
Total Current Assets	1			195		516		3,716		(550		)	3,878

Equity Investments in Affiliates	(460		)	7,998		8,009		530		(16,077		)	—
Intercompany Receivables, Net	—			—		—		4,213		(4,213		)	—
Other Assets	—			8		4		5,857		—			5,869
Total Assets	$	(459	)	$	8,201	$	8,529	$	14,316	$	(20,840	)	$	9,747

Current Liabilities:
Short-term Borrowings and Current Portion of Long-Term Debt	$	—		$	128	$	—	$	20	$	—		$	148
Accounts Payable and Other Current Liabilities	10			183		—		2,439		(550		)	2,082
Total Current Liabilities	10			311		—		2,459		(550		)	2,230

Long-term Debt	—			7,127		166		159		89			7,541
Intercompany Payables, Net	87			242		3,884		—		(4,213		)	—
Other Long-term Liabilities	70			146		136		332		(137		)	547
Total Liabilities	167			7,826		4,186		2,950		(4,811		)	10,318

Weatherford Shareholders’ Equity	(626		)	375		4,343		11,311		(16,029		)	(626		)
Noncontrolling Interests	—			—		—		55		—			55
Total Liabilities and Shareholders’ Equity	$	(459	)	$	8,201	$	8,529	$	14,316	$	(20,840	)	$	9,747

Condensed Consolidating Statement of Cash Flows

Three Months Ended March 31, 2018

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Cash Flows from Operating Activities:
Net Income (Loss)	$	(245	)	$	(407	)	$	(14	)	$	(820	)	$	1,244		$	(242	)
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	18			3			(11		)	594			(604		)	—
Equity in (Earnings) Loss of Affiliates	275			350			133			—			(758		)	—
Deferred Income Tax Provision (Benefit)	—			—			—			13						13
Other Adjustments	(10		)	467			(872		)	341			118			44
Net Cash Provided (Used) by Operating Activities	38			413			(764		)	128			—			(185		)
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(29		)	—			(29		)
Capital Expenditures for Assets Held for Sale	—			—			—			(9		)	—			(9		)
Acquisitions of Businesses, Net of Cash Acquired	—			—			—			4			—			4
Acquisition of Intellectual Property	—			—			—			(3		)	—			(3		)
Proceeds from Sale of Assets	—			—			—			12			—			12
Payment Related to Sale of Businesses, Net	—			—			—			25			—			25
Net Cash Provided (Used) by Investing Activities	—			—			—			—			—			—
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			(47		)	—			(7		)	—			(54		)
Borrowings (Repayments) Long-term Debt, Net	—			(438		)	588			(2		)	—			148
Borrowings (Repayments) Between Subsidiaries, Net	(38		)	(17		)	176			(121		)	—			—
Other, Net	—			—			—			(40		)	—			(40		)
Net Cash Provided (Used) by Financing Activities	(38		)	(502		)	764			(170		)	—			54
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			(23		)	—			(23		)
Net Increase (Decrease) in Cash and Cash Equivalents	—			(89		)	—			(65		)	—			(154		)
Cash and Cash Equivalents at Beginning of Period	—			195			—			418			—			613
Cash and Cash Equivalents at End of Period	$	—		$	106		$	—		$	353		$	—		$	459

Condensed Consolidating Statement of Cash Flows

Three Months Ended March 31, 2017

(Unaudited)



(Dollars in millions)	Weatherford Ireland			Weatherford Bermuda			Weatherford Delaware			Other Subsidiaries			Eliminations			Consolidation
Cash Flows from Operating Activities:
Net Income (Loss)	$	(448	)	$	(171	)	$	57		$	(28	)	$	147		$	(443	)
Adjustments to Reconcile Net Income(Loss) to Net Cash Provided (Used) by Operating Activities:
Charges from Parent or Subsidiary	(1		)	8			2			(9		)	—			—
Equity in (Earnings) Loss of Affiliates	384			(172		)	(219		)	—			7			—
Deferred Income Tax Provision (Benefit)	—			—			—			18			—			18
Other Adjustments	24			220			186			(30		)	(154		)	246
Net Cash Provided (Used) by Operating Activities	(41		)	(115		)	26			(49		)	—			(179		)
Cash Flows from Investing Activities:
Capital Expenditures for Property, Plant and Equipment	—			—			—			(40		)	—			(40		)
Acquisition of Assets Held for Sale	—			—			—			(240		)	—			(240		)
Acquisition of Intellectual Property	—			—			—			(2		)	—			(2		)
Proceeds from Sale of Assets and Businesses, Net	—			—			—			4			—			4
Proceeds (Payments) from Sale of Businesses, Net	—			—			—			(1		)	—			(1		)
Net Cash Provided (Used) by Investing Activities	—			—			—			(279		)	—			(279		)
Cash Flows from Financing Activities:
Borrowings (Repayments) Short-term Debt, Net	—			—			—			(7		)	—			(7		)
Borrowings (Repayments) Long-term Debt, Net	—			(13		)	(1		)	(4		)	—			(18		)
Borrowings (Repayments) Between Subsidiaries, Net	42			(381		)	(28		)	367			—			—
Other, Net	—			—			—			(11		)	—			(11		)
Net Cash Provided (Used) by Financing Activities	42			(394		)	(29		)	345			—			(36		)
Effect of Exchange Rate Changes On Cash and Cash Equivalents	—			—			—			3			—			3
Net Increase (Decrease) in Cash and Cash Equivalents	1			(509		)	(3		)	20			—			(491		)
Cash and Cash Equivalents at Beginning of Period	—			586			4			447			—			1,037
Cash and Cash Equivalents at End of Period	$	1		$	77		$	1		$	467		$	—		$	546

New Accounting Pronouncements New Accounting Pronouncements - Topic 606 (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other Current Assets	$ 335	$ 342	$ 332
Other Liabilities, Current	618	692	690
Retained Deficit	$ (6,105)	(5,755)	(5,763)
Calculated under Revenue Guidance in Effect before Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other Current Assets			332
Other Liabilities, Current			690
Retained Deficit			$ (5,763)
Adjustments Due to Topic 606 \| Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Other Current Assets		10
Other Liabilities, Current		2
Retained Deficit		$ 8

New Accounting Pronouncements New Accounting Pronouncements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income	$ 1,462	$ 1,600
Reclassification of income	(8)	7
Prepaid taxes	105
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption (less than)	1
Accounting Standards Update 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income		$ 18
Reclassification of income	$ 18

Revenues - Major Product Line (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	$ 1,341
Rental Revenues	82
Total Revenues	1,423	$ 1,386
Production
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	381
Rental Revenues	0
Total Revenues	381
Completions
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	293
Rental Revenues	1
Total Revenues	294
Drilling and Evaluation
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	350
Rental Revenues	8
Total Revenues	358
Well Construction
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	317
Rental Revenues	73
Total Revenues	390
Western Hemisphere
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	700
Western Hemisphere \| Production
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	286
Western Hemisphere \| Completions
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	157
Western Hemisphere \| Drilling and Evaluation
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	156
Western Hemisphere \| Well Construction
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	101
Eastern Hemisphere
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	641
Eastern Hemisphere \| Production
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	95
Eastern Hemisphere \| Completions
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	136
Eastern Hemisphere \| Drilling and Evaluation
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	194
Eastern Hemisphere \| Well Construction
Disaggregation of Revenue [Line Items]
Total Excluding Rental Revenues	$ 216

Revenues - Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	$ 1,341
Rental Revenues	82
Total Revenues	1,423	$ 1,386
Western Hemisphere
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	700
Western Hemisphere \| United States
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	345
Western Hemisphere \| Latin America
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	226
Western Hemisphere \| Canada
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	129
Eastern Hemisphere
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	641
Eastern Hemisphere \| Middle East and North Africa
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	363
Eastern Hemisphere \| Europe, Sub-Sahara Africa, Russia
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	222
Eastern Hemisphere \| Asia
Disaggregation of Revenue [Line Items]
Total Product and Service Revenue before Rental Revenues	$ 56

Revenues - Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jan. 01, 2018
Revenue from Contract with Customer [Abstract]
Receivables for Product and Services in Accounts Receivable, Net	$ 1,037	$ 1,081

Revenues - Contract Assets and Liabilities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Contract Assets
Balance, as of January 1, 2018	$ 10
Increase due to revenue recognized during the period but contingent on future performance	6
Transferred to receivables from contract assets recognized at the beginning of the period	(1)
Balance, as of March 31, 2018	15
Contract Liabilities
Balance, as of January 1, 2018	42
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(20)
Increase due to cash received, excluding amount recognized as revenue during the period	25
Balance, as of March 31, 2018	$ 47

Revenues Revenues - Narrative (Details)	3 Months Ended
Revenues Revenues - Narrative (Details)	Mar. 31, 2018
Minimum
Disaggregation of Revenue [Line Items]
Product warranty period	1 year
Maximum
Disaggregation of Revenue [Line Items]
Product warranty period	5 years

Revenues - Expected to be Recognized in Future (Details) $ in Millions	Mar. 31, 2018 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	$ 80
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	51
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	20
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Service revenue	$ 151

Business Combinations and Divestitures - Acquisitions (Details) - USD ($) $ in Millions	Mar. 26, 2018	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill		$ 2,740		$ 2,727
Other Current Assets		$ 335	$ 342	$ 332
Joint Venture in Qatar
Business Acquisition [Line Items]
Percentage of voting interests acquired	50.00%
Consideration transferred	$ 87
Cash	$ 72
Period of additional payment after closing	2 years
Contingent consideration, liability	$ 15
Equity interest in acquiree, remeasurement gain	12
Intangible assets	26
Property, plant, and equipment	25
Goodwill	23
Other Current Assets	16
Liabilities, other	43
Joint Venture in Qatar \| Paid in Accordance with Closing Terms through the Joint Venture
Business Acquisition [Line Items]
Cash	48
Joint Venture in Qatar \| Will be Made Two Years after Closing
Business Acquisition [Line Items]
Cash	$ 24

Business Combinations and Divestitures - Divestitures Narrative (Details) - Disposed of by Sale - Conventional Continuous Sucker Rod Business [Member] $ in Millions	Mar. 28, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration	$ 25
Gain on disposition of business	2
Assets	14
Goodwill	8
Inventory	$ 1

Business Combinations and Divestitures - Held for Sale (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Property, plant and equipment	$ 2,580	$ 2,708
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Property, plant and equipment	29
Discontinued Operations, Held-for-sale \| Drilling Rigs [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets	276	276
Inventory	$ 64	$ 64

Restructuring and Transformation Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	$ 25	$ 75
Transformation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	25
Transformation Plan [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	14
Transformation Plan [Member] \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs	11
Transformation Plan [Member] \| Other Restructuring Less Asset Write-Offs [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	$ 14
2016-17 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges		75
2016-17 Plan [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		41
Asset Impairment Charges		12
2016-17 Plan [Member] \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs		34
2016-17 Plan [Member] \| Other Restructuring excluding write-downs [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		$ 29

Restructuring and Transformation Charges (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	$ 25	$ 75
Transformation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	25
Transformation Plan [Member] \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	4
Transformation Plan [Member] \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	9
Transformation Plan [Member] \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges	12
Transformation Plan [Member] \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs	11
Transformation Plan [Member] \| Employee Severance \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance costs	4
Transformation Plan [Member] \| Employee Severance \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance costs	4
Transformation Plan [Member] \| Employee Severance \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	3
Transformation Plan [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	14
Transformation Plan [Member] \| Other Restructuring \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	0
Transformation Plan [Member] \| Other Restructuring \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	5
Transformation Plan [Member] \| Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	$ 9
2016-17 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges		75
2016-17 Plan [Member] \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges		23
2016-17 Plan [Member] \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges		26
2016-17 Plan [Member] \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance, asset impairment and other restructuring charges		26
2016-17 Plan [Member] \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance costs		34
2016-17 Plan [Member] \| Employee Severance \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance costs		5
2016-17 Plan [Member] \| Employee Severance \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Severance costs		7
2016-17 Plan [Member] \| Employee Severance \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		22
2016-17 Plan [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		41
2016-17 Plan [Member] \| Other Restructuring \| Western Hemisphere
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		18
2016-17 Plan [Member] \| Other Restructuring \| Eastern Hemisphere
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		19
2016-17 Plan [Member] \| Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		$ 4

Restructuring and Transformation Charges (Restructuring Liability) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Other Restructuring
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	$ 60
Other Restructuring \| Eastern Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	26
Other Restructuring \| Western Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	16
Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	18
Severance and Other Restructuring Liabilities [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at beginning of period	61
Restructuring Charges	25
Cash Payments	(26)
Other	0
Accrued balance at end of period	60
Transformation Plan [Member] \| Employee Severance
Restructuring Reserve [Roll Forward]
Accrued balance at beginning of period	0
Restructuring Charges	11
Cash Payments	(8)
Other	1
Accrued balance at end of period	4
Transformation Plan [Member] \| Employee Severance \| Eastern Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	2
Transformation Plan [Member] \| Employee Severance \| Western Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	0
Transformation Plan [Member] \| Employee Severance \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	2
Transformation Plan [Member] \| Other Restructuring
Restructuring Reserve [Roll Forward]
Accrued balance at beginning of period	0
Restructuring Charges	14
Cash Payments	(6)
Other	(1)
Accrued balance at end of period	7
Transformation Plan [Member] \| Other Restructuring \| Eastern Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	1
Transformation Plan [Member] \| Other Restructuring \| Western Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	0
Transformation Plan [Member] \| Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	6
2016-17 and Prior Plan [Member] \| Employee Severance
Restructuring Reserve [Roll Forward]
Accrued balance at beginning of period	21
Restructuring Charges	0
Cash Payments	(7)
Other	1
Accrued balance at end of period	15
2016-17 and Prior Plan [Member] \| Employee Severance \| Eastern Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	3
2016-17 and Prior Plan [Member] \| Employee Severance \| Western Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	2
2016-17 and Prior Plan [Member] \| Employee Severance \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	10
2016-17 and Prior Plan [Member] \| Other Restructuring
Restructuring Reserve [Roll Forward]
Accrued balance at beginning of period	40
Restructuring Charges	0
Cash Payments	(5)
Other	(1)
Accrued balance at end of period	34
2016-17 and Prior Plan [Member] \| Other Restructuring \| Eastern Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	20
2016-17 and Prior Plan [Member] \| Other Restructuring \| Western Hemisphere
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	14
2016-17 and Prior Plan [Member] \| Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Accrued balance at end of period	$ 0

Accounts Receivable Factoring and Other Receivables (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from Sale of Notes Receivable		$ 59.0
Proceeds from sale of accounts receivable	$ 93.0
Gain (loss) on sale of accounts receivable	(0.6)		$ (0.2)
Accounts receivable sold, carrying value	$ 96.0		38.0
Trade receivables held-for-sale, reconciliation to cash flow, deductions from held-for-sale			65.0
Receivable with imputed interest, face amount			$ 65.0
Receivable with imputed interest, term			3 years
Receivable with imputed interest, effective yield (interest rate)			4.625%
Notes receivable, fair value disclosure			$ 58.0

Inventories, Net (Schedule of Inventory) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials, components and supplies	$ 158	$ 144
Work in process	53	47
Finished goods	1,014	1,043
Inventories, Net	$ 1,225	$ 1,234

Goodwill (Schedule of Goodwill) (Details) $ in Millions	3 Months Ended
Goodwill (Schedule of Goodwill) (Details) $ in Millions	Mar. 31, 2018 USD ($)
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 23
Goodwill, Written off Related to Sale of Business Unit	8
Goodwill [Roll Forward]
Balance at December 31, 2017	2,727
Foreign currency translation adjustments	(2)
Balance at March 31, 2018	2,740
Western Hemisphere
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	8
Goodwill [Roll Forward]
Balance at December 31, 2017	1,958
Foreign currency translation adjustments	(21)
Eastern Hemisphere
Goodwill [Line Items]
Goodwill, Acquired During Period	23
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill [Roll Forward]
Balance at December 31, 2017	769
Foreign currency translation adjustments	19
Balance at March 31, 2018	811
Western Hemisphere
Goodwill [Line Items]
Goodwill, Acquired During Period	0
Goodwill [Roll Forward]
Balance at March 31, 2018	$ 1,929

Short-term Borrowings and Other Debt Obligations (Schedule of Short-term Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Short-term debt	$ 25	$ 25	$ 0
Other short-term bank loans
Short-term Debt [Line Items]
Short-term debt	4	11
Current Portion of Long-term Debt	$ 124	$ 137

Short-term Borrowings and Other Debt Obligations (Narrative) (Details) - USD ($)		3 Months Ended
	Feb. 28, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Short-term Debt [Line Items]
Credit agreement, maximum capacity		$ 1,263,000,000
Remaining borrowing capacity		$ 744,000,000
Line of Credit Facility, Collateral		89
Debt instrument, covenant, senior leverage ratio, period two		2.5
Debt instrument, covenant, specified leverage and letter of credit ratio, period two		3.5
Debt instrument, covenant, asset coverage ratio		4.0
Bond Tender and Call Premium		$ (34,000,000)	$ 0
Borrowings of Long-term Debt		588,000,000	0
Performance bonds		15,000,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		440,000,000	$ 18,000,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Short-term debt		25,000,000		$ 25,000,000	$ 0
Committed letters of credit
Short-term Debt [Line Items]
Letters of Credit Outstanding, Amount		356,000,000
Domestic and foreign facility
Short-term Debt [Line Items]
Short term borrowings		4,000,000
A&R Credit Agreement
Short-term Debt [Line Items]
Credit agreement, maximum capacity		900,000,000
Senior Notes, 9.875 Percent due 2025
Short-term Debt [Line Items]
Long-term Debt	$ 600,000,000
Senior Notes, 9.625% due 2019
Short-term Debt [Line Items]
Long-term Debt	425,000,000
Interest Payable	20,000,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	$ 475,000,000
Term Loan Borrowings before Debt Issuance Cost [Member]
Short-term Debt [Line Items]
Debt and Capital Lease Obligations		$ 363,000,000
Senior Notes \| Senior Notes, 9.875 Percent due 2025
Short-term Debt [Line Items]
Stated interest rate on debt	9.875%
Senior Notes \| Senior Notes, 9.625% due 2019
Short-term Debt [Line Items]
Stated interest rate on debt	9.625%
Senior Notes \| Senior Notes, 6.00% due 2018
Short-term Debt [Line Items]
Stated interest rate on debt		6.00%
London Interbank Offered Rate (LIBOR) \| Term Loan Agreement
Short-term Debt [Line Items]
Basis spread on variable rate (as a percent)		2.30%
London Interbank Offered Rate (LIBOR) \| Extending Lenders \| Minimum \| A&R Credit Agreement
Short-term Debt [Line Items]
Basis spread on variable rate (as a percent)		2.80%

Short-term Borrowings and Other Debt Obligations Schedule of Borrowing Availability (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Credit agreement, maximum capacity	$ 1,263
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Short-term debt	25	$ 25	$ 0
Committed Letters of Credit [Member]
Line of Credit Facility [Line Items]
Letters of Credit Outstanding, Amount	131
Term Loan Borrowings before Debt Issuance Cost [Member]
Line of Credit Facility [Line Items]
Debt and Capital Lease Obligations	$ 363

Fair Value of Financial Instruments (Details) - Senior Notes - Level 2 - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt	$ 6,376	$ 7,060
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt	$ 7,319	$ 7,218

Derivative Instruments (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2017
Derivative [Line Items]
Number of securities called by each warrant or right			84.5
Exercise price of warrants or rights			$ 6.43
Warrants and rights outstanding	$ 24			$ 70
Fair Value Adjustment of Warrants	(46)	$ 62
Foreign currency forward contracts
Derivative [Line Items]
Notional amount	734			$ 767
Fair Value Hedging \| Interest rate swap
Derivative [Line Items]
Debt instrument, unamortized premium	0
Cash Flow Hedging [Member] \| Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Deferred (gain) loss on discontinuation of fair value hedge	9
Other, Net \| Not Designated as Hedging Instrument \| Foreign currency forward contracts
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 1	$ (7)
Capital in Excess of Par Value
Derivative [Line Items]
Stock issued during period, shares, new issues			84.5

Derivative Instruments (Schedule of Derivatives - Balance Sheet) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Foreign currency forward contracts \| Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross	$ 3	$ 5
Foreign currency forward contracts \| Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, gross	(2)	(4)
Warrant \| Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, gross	$ (24)	$ (70)

Derivative Instruments (Schedule of Derivatives - Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Warrant Fair Value Adjustment	$ (46)	$ 62
Foreign currency forward contracts \| Other, Net \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative	$ 1	(7)
Warrant \| Other, Net \| Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Warrant Fair Value Adjustment		$ (62)

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2019
(Provision) Benefit for Income Taxes	$ (32)	$ (33)
Income (loss) before income taxes	$ (210)	$ (410)
Forecast
Uncertain tax positions, estimated for next twelve months			$ 19

Shareholders' Equity (Shareholders' Equity Activity) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2017
Schedule of Issued and Treasury Shares [Line Items]
Capital in Excess of Par Value	$ 6,676			$ 6,655
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	(571)	$ 2,068
Net Income (Loss)	(242)	(443)
Other Comprehensive Income	5	43
Dividends Paid to Noncontrolling Interests	(4)	(5)
Equity Awards Granted, Vested and Exercised	17	28
Balance, ending balance	(898)	1,691	$ 2,068
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	(97)
Stockholders' Equity, Other	(6)
Par Value of Issued Shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	1	1
Equity Awards Granted, Vested and Exercised	0	0
Balance, ending balance	1	1	1
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	6,655	6,571
Equity Awards Granted, Vested and Exercised	17	28
Balance, ending balance	6,676	6,599	$ 6,571
Stock issued during period, shares, new issues			84.5
Stockholders' Equity, Other	4
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	(5,763)	(2,950)
Net Income (Loss)	(245)	(448)
Equity Awards Granted, Vested and Exercised	0	0
Balance, ending balance	(6,105)	(3,398)	$ (2,950)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	(97)
Stockholders' Equity, Other	0
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	(1,519)	(1,610)
Other Comprehensive Income	5	43
Equity Awards Granted, Vested and Exercised	0	0
Balance, ending balance	(1,514)	(1,567)	(1,610)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning balance	55	56
Net Income (Loss)	3	5
Dividends Paid to Noncontrolling Interests	(4)	(5)
Equity Awards Granted, Vested and Exercised	0	0
Balance, ending balance	44	$ 56	$ 56
Stockholders' Equity, Other	$ (10)

Shareholders' Equity (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (1,519)	$ (1,610)
Other Comprehensive Income before Reclassifications	5	63
Reclassifications	0	(20)
Other Comprehensive Income (Loss)	5	43
Ending balance	(1,514)	(1,567)
Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,484)	(1,614)
Other Comprehensive Income before Reclassifications	5	63
Reclassifications	0	0
Other Comprehensive Income (Loss)	5	63
Ending balance	(1,479)	(1,551)
Defined Benefit Pension
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(26)	13
Other Comprehensive Income before Reclassifications	0	0
Reclassifications	0	(20)
Other Comprehensive Income (Loss)	0	(20)
Ending balance	(26)	(7)
Deferred Loss on Derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(9)	(9)
Other Comprehensive Income before Reclassifications	0	0
Reclassifications	0	0
Other Comprehensive Income (Loss)	0	0
Ending balance	$ (9)	$ (9)

Share-Based Compensation (Schedule of Share-based Compensation Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	$ 13	$ 24
Related tax benefit	$ 0	$ 0

Share-Based Compensation (Narrative) (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Performance units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	1.3
Weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 3.94
Fair value, risk-free rate	2.28%
Fair value, volatility rate	63.00%
Fair value, dividend yield	0.00%
Unrecognized compensation expense \| $	$ 16
Unrecognized compensation expense, recognition period	2 years
Performance units \| Monte Carlo simulation method
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	1.3
Weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 5.41
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	2.9
Weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 3.89
Unrecognized compensation expense \| $	$ 55
Unrecognized compensation expense, recognition period	2 years

Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
Segment Information (Details) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ (1,423)	$ (1,386)
Operating Income (Loss)	(39)	(214)
Depreciation and Amortization	147	208
Corporate General and Administrative	(38)	(39)
Restructuring Charges	(25)	(75)
Overstatement (reduction) of revenues	(1,423)	(1,386)
Operating Segments
Segment Reporting Information [Line Items]
Revenues	(1,423)	(1,386)
Operating Income (Loss)	40	(89)
Depreciation and Amortization	146	206
Overstatement (reduction) of revenues	(1,423)	(1,386)
Operating Segments \| Western Hemisphere
Segment Reporting Information [Line Items]
Revenues	(756)	(733)
Operating Income (Loss)	24	(30)
Depreciation and Amortization	60	91
Overstatement (reduction) of revenues	(756)	(733)
Operating Segments \| Eastern Hemisphere
Segment Reporting Information [Line Items]
Revenues	(667)	(653)
Operating Income (Loss)	16	(59)
Depreciation and Amortization	86	115
Overstatement (reduction) of revenues	(667)	(653)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization	1	2
Corporate General and Administrative	(36)	(33)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Restructuring Charges	(25)	(75)
Impairment of Long-Lived Assets and Other Related Charges	$ (18)	$ (17)

Segment Information (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Severance, asset impairment and other restructuring charges	$ 25	$ 75
Goodwill and Equity Investment Impairment	$ 29	20
2016-17 Plan [Member]
Segment Reporting Information [Line Items]
Severance, asset impairment and other restructuring charges		75
2016-17 Plan [Member] \| Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Severance, asset impairment and other restructuring charges		$ 26

Disputes, Litigation and Contingencies (Details) $ in Millions			12 Months Ended
	Sep. 27, 2016	Jul. 31, 2015 patent	Dec. 31, 2010 lawsuit	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Loss Contingency, Patents Allegedly Infringed, Number \| patent		7
Estimated litigation liability				$ 47	$ 51
Recorded unconditional purchase obligation				47
Other Current Liabilities
Loss Contingencies [Line Items]
Recorded unconditional purchase obligation				22
Other Noncurrent Liabilities
Loss Contingencies [Line Items]
Recorded unconditional purchase obligation				$ 25
Neff v. Brady, et al.
Loss Contingencies [Line Items]
Number of actions filed (in lawsuits) \| lawsuit			3
U.S. SEC and DOJ Investigation
Loss Contingencies [Line Items]
Loss contingency accrual						$ 140
Period of time in which reports and certifications are delivered regarding tax internal controls	2 years

Condensed Consolidating Financial Statements (Narrative) (Details) - Senior Notes	Mar. 31, 2018	Feb. 28, 2018	Dec. 31, 2017
Senior Notes, 6.80% due 2037 \| Weatherford Bermuda
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	6.80%		6.80%
Senior Notes, 6.50% due 2036 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	6.50%		6.50%
Senior Notes, 6.00% due 2018
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	6.00%
Senior Notes, 6.00% due 2018 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt			6.00%
Senior Notes, 7.00% due 2038 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	7.00%		7.00%
Senior Notes, 9.625% due 2019
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt		9.625%
Senior Notes, 9.625% due 2019 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	9.625%		9.625%
Senior Notes, 9.875% due 2039 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	9.875%		9.875%
Senior Notes, 5.125% due 2020 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	5.125%		5.125%
Senior Notes, 6.75% due 2040 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	6.75%		6.75%
Senior Notes, 4.50% due 2022 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	4.50%		4.50%
Senior Notes, 5.95% due 2042 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	5.95%		5.95%
Exchangeable Senior Notes, 5.875 Percent due 2021 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	5.875%		5.875%
Senior Notes, 7.75 Percent due 2021 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	7.75%		7.75%
Senior Notes, 8.25 Percent due 2023 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	8.25%		8.25%
Senior Notes, 9.875 Percent due 2024 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	9.875%		9.875%
Senior Notes, 9.875 Percent due 2025
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt		9.875%
Senior Notes, 9.875 Percent due 2025 \| Weatherford Delaware
Condensed Financial Statements, Captions [Line Items]
Stated interest rate on debt	9.875%

Condensed Consolidating Financial Statements (Condensed Consolidating Statement of Operations) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Income Statements, Captions [Line Items]
Revenues	$ 1,423	$ 1,386
Costs and Expenses	(1,462)	(1,600)
Operating Income (Loss)	(39)	(214)
Other Income (Expense):
Interest Expense, Net	(149)	(141)
Intercompany Charges, Net	0	0
Equity in Subsidiary Income (Loss)	0	0
Other, Net	(22)	(55)
Loss Before Income Taxes	(210)	(410)
(Provision) Benefit for Income Taxes	(32)	(33)
Net Loss	(242)	(443)
Noncontrolling Interests	3	5
Net Income (Loss) Attributable to Weatherford	(245)	(448)
Comprehensive Income (Loss) Attributable to Weatherford	(240)	(405)
Other Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenues	1,423	1,386
Costs and Expenses	(1,464)	(1,617)
Operating Income (Loss)	(41)	(231)
Other Income (Expense):
Interest Expense, Net	4	4
Intercompany Charges, Net	(594)	9
Equity in Subsidiary Income (Loss)	0	0
Other, Net	(157)	223
Loss Before Income Taxes	(788)	5
(Provision) Benefit for Income Taxes	(32)	(33)
Net Loss	(820)	(28)
Noncontrolling Interests	3	5
Net Income (Loss) Attributable to Weatherford	(823)	(33)
Comprehensive Income (Loss) Attributable to Weatherford	(818)	10
Weatherford Ireland
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and Expenses	2	(3)
Operating Income (Loss)	2	(3)
Other Income (Expense):
Interest Expense, Net	0	0
Intercompany Charges, Net	(18)	1
Equity in Subsidiary Income (Loss)	(275)	(384)
Other, Net	46	(62)
Loss Before Income Taxes	(245)	(448)
(Provision) Benefit for Income Taxes	0	0
Net Loss	(245)	(448)
Noncontrolling Interests	0	0
Net Income (Loss) Attributable to Weatherford	(245)	(448)
Comprehensive Income (Loss) Attributable to Weatherford	(240)	(405)
Weatherford Bermuda
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and Expenses	0	20
Operating Income (Loss)	0	20
Other Income (Expense):
Interest Expense, Net	(144)	(139)
Intercompany Charges, Net	(3)	(8)
Equity in Subsidiary Income (Loss)	(350)	172
Other, Net	90	(216)
Loss Before Income Taxes	(407)	(171)
(Provision) Benefit for Income Taxes	0	0
Net Loss	(407)	(171)
Noncontrolling Interests	0	0
Net Income (Loss) Attributable to Weatherford	(407)	(171)
Comprehensive Income (Loss) Attributable to Weatherford	(401)	(176)
Weatherford Delaware
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and Expenses	0	0
Operating Income (Loss)	0	0
Other Income (Expense):
Interest Expense, Net	(14)	(21)
Intercompany Charges, Net	11	(2)
Equity in Subsidiary Income (Loss)	(133)	219
Other, Net	122	(139)
Loss Before Income Taxes	(14)	57
(Provision) Benefit for Income Taxes	0	0
Net Loss	(14)	57
Noncontrolling Interests	0	0
Net Income (Loss) Attributable to Weatherford	(14)	57
Comprehensive Income (Loss) Attributable to Weatherford	(2)	(26)
Eliminations
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Costs and Expenses	0	0
Operating Income (Loss)	0	0
Other Income (Expense):
Interest Expense, Net	5	15
Intercompany Charges, Net	(604)	0
Equity in Subsidiary Income (Loss)	758	(7)
Other, Net	(123)	139
Loss Before Income Taxes	1,244	147
(Provision) Benefit for Income Taxes	0	0
Net Loss	1,244	147
Noncontrolling Interests	0	0
Net Income (Loss) Attributable to Weatherford	1,244	147
Comprehensive Income (Loss) Attributable to Weatherford	$ 1,221	$ 192

Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Current Assets
Cash and Cash Equivalents	$ 459	$ 613	$ 546	$ 1,037
Other Current Assets	3,156	3,265
Total Current Assets	3,615	3,878
Equity Investments in Affiliates	0	0
Intercompany Receivables, Net	0	0
Other Assets	5,719	5,869
Total Assets	9,334	9,747
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	153	148
Accounts Payable and Other Current Liabilities	1,939	2,082
Total Current Liabilities	2,092	2,230
Long-term Debt	7,639	7,541
Intercompany Payables, Net	0	0
Other Long-term Liabilities	501	547
Total Liabilities	10,232	10,318
Weatherford Shareholders’ Equity	(942)	(626)
Noncontrolling Interests	44	55
Total Liabilities and Shareholders’ Equity	9,334	9,747
Other Subsidiaries
Current Assets
Cash and Cash Equivalents	353	418	467	447
Other Current Assets	3,191	3,298
Total Current Assets	3,544	3,716
Equity Investments in Affiliates	794	530
Intercompany Receivables, Net	3,139	4,213
Other Assets	5,707	5,857
Total Assets	13,184	14,316
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	16	20
Accounts Payable and Other Current Liabilities	2,332	2,439
Total Current Liabilities	2,348	2,459
Long-term Debt	154	159
Intercompany Payables, Net	0	0
Other Long-term Liabilities	454	332
Total Liabilities	2,956	2,950
Weatherford Shareholders’ Equity	10,184	11,311
Noncontrolling Interests	44	55
Total Liabilities and Shareholders’ Equity	13,184	14,316
Weatherford Ireland
Current Assets
Cash and Cash Equivalents	0	0	1	0
Other Current Assets	1	1
Total Current Assets	1	1
Equity Investments in Affiliates	(810)	(460)
Intercompany Receivables, Net	0	0
Other Assets	0	0
Total Assets	(809)	(459)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	7	10
Total Current Liabilities	7	10
Long-term Debt	0	0
Intercompany Payables, Net	102	87
Other Long-term Liabilities	24	70
Total Liabilities	133	167
Weatherford Shareholders’ Equity	(942)	(626)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	(809)	(459)
Weatherford Bermuda
Current Assets
Cash and Cash Equivalents	106	195	77	586
Other Current Assets	0	0
Total Current Assets	106	195
Equity Investments in Affiliates	7,647	7,998
Intercompany Receivables, Net	0	0
Other Assets	7	8
Total Assets	7,760	8,201
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	137	128
Accounts Payable and Other Current Liabilities	142	183
Total Current Liabilities	279	311
Long-term Debt	6,643	7,127
Intercompany Payables, Net	258	242
Other Long-term Liabilities	23	146
Total Liabilities	7,203	7,826
Weatherford Shareholders’ Equity	557	375
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	7,760	8,201
Weatherford Delaware
Current Assets
Cash and Cash Equivalents	0	0	1	4
Other Current Assets	506	516
Total Current Assets	506	516
Equity Investments in Affiliates	7,718	8,009
Intercompany Receivables, Net	0	0
Other Assets	5	4
Total Assets	8,229	8,529
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	0	0
Total Current Liabilities	0	0
Long-term Debt	758	166
Intercompany Payables, Net	2,779	3,884
Other Long-term Liabilities	14	136
Total Liabilities	3,551	4,186
Weatherford Shareholders’ Equity	4,678	4,343
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	8,229	8,529
Eliminations
Current Assets
Cash and Cash Equivalents	0	0	$ 0	$ 0
Other Current Assets	(542)	(550)
Total Current Assets	(542)	(550)
Equity Investments in Affiliates	(15,349)	(16,077)
Intercompany Receivables, Net	(3,139)	(4,213)
Other Assets	0	0
Total Assets	(19,030)	(20,840)
Current Liabilities
Short-term Borrowings and Current Portion of Long-Term Debt	0	0
Accounts Payable and Other Current Liabilities	(542)	(550)
Total Current Liabilities	(542)	(550)
Long-term Debt	84	89
Intercompany Payables, Net	(3,139)	(4,213)
Other Long-term Liabilities	(14)	(137)
Total Liabilities	(3,611)	(4,811)
Weatherford Shareholders’ Equity	(15,419)	(16,029)
Noncontrolling Interests	0	0
Total Liabilities and Shareholders’ Equity	$ (19,030)	$ (20,840)

Condensed Consolidating Financial Statements (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Net Income (Loss)	$ (242,000,000)	$ (443,000,000)
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	0	0
Equity in (Earnings) Loss of Affiliates	0	0
Deferred Income Tax Provision	13,000,000	18,000,000
Other Adjustments	44,000,000	246,000,000
Net Cash Used in Operating Activities	(185,000,000)	(179,000,000)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	(29,000,000)	(40,000,000)
Payments to Acquire Businesses, Net of Cash Acquired	4,000,000	0
Capital Expenditures and Acquisition of Assets Held for Sale	(9,000,000)	(240,000,000)
Acquisition of Intellectual Property	(3,000,000)	(2,000,000)
Proceeds from Sale of Assets	12,000,000	4,000,000
Proceeds (Payments) from Sale of Businesses, Net	25,000,000	(1,000,000)
Net Cash Used in Investing Activities	0	279,000,000
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	(54,000,000)	(7,000,000)
Borrowings (Repayments) Long-term Debt, Net	148,000,000	(18,000,000)
Borrowings (Repayments) Between Subsidiaries, Net	0	0
Other, Net	(40,000,000)	(11,000,000)
Net Cash Provided by (Used in) Financing Activities	54,000,000	(36,000,000)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(23,000,000)	3,000,000
Net Decrease in Cash and Cash Equivalents	(154,000,000)	(491,000,000)
Cash and Cash Equivalents at Beginning of Period	613,000,000	1,037,000,000
Cash and Cash Equivalents at End of Period	459,000,000	546,000,000
Other Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets	12,000,000
Net Income (Loss)	(820,000,000)	(28,000,000)
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	594,000,000	(9,000,000)
Equity in (Earnings) Loss of Affiliates	0	0
Deferred Income Tax Provision	13,000,000	18,000,000
Other Adjustments	341,000,000	(30,000,000)
Net Cash Used in Operating Activities	128,000,000	(49,000,000)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	(29,000,000)	(40,000,000)
Payments to Acquire Businesses, Net of Cash Acquired	4,000,000
Capital Expenditures and Acquisition of Assets Held for Sale	(9,000,000)	(240,000,000)
Acquisition of Intellectual Property	(3,000,000)	(2,000,000)
Proceeds from Sale of Assets		4,000,000
Proceeds (Payments) from Sale of Businesses, Net	25,000,000	(1,000,000)
Net Cash Used in Investing Activities	0	279,000,000
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	(7,000,000)	(7,000,000)
Borrowings (Repayments) Long-term Debt, Net	(2,000,000)	(4,000,000)
Borrowings (Repayments) Between Subsidiaries, Net	(121,000,000)	367,000,000
Other, Net	(40,000,000)	(11,000,000)
Net Cash Provided by (Used in) Financing Activities	(170,000,000)	345,000,000
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(23,000,000)	3,000,000
Net Decrease in Cash and Cash Equivalents	(65,000,000)	20,000,000
Cash and Cash Equivalents at Beginning of Period	418,000,000	447,000,000
Cash and Cash Equivalents at End of Period	353,000,000	467,000,000
Weatherford Ireland
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets	0
Net Income (Loss)	(245,000,000)	(448,000,000)
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	18,000,000	(1,000,000)
Equity in (Earnings) Loss of Affiliates	275,000,000	384,000,000
Deferred Income Tax Provision	0	0
Other Adjustments	(10,000,000)	24,000,000
Net Cash Used in Operating Activities	38,000,000	(41,000,000)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment		0
Acquisition of Intellectual Property		0
Proceeds from Sale of Assets		0
Proceeds (Payments) from Sale of Businesses, Net	0	0
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	0	0
Borrowings (Repayments) Long-term Debt, Net	0	0
Borrowings (Repayments) Between Subsidiaries, Net	(38,000,000)	42,000,000
Other, Net	0	0
Net Cash Provided by (Used in) Financing Activities	(38,000,000)	42,000,000
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Decrease in Cash and Cash Equivalents	0	1,000,000
Cash and Cash Equivalents at Beginning of Period	0	0
Cash and Cash Equivalents at End of Period	0	1,000,000
Weatherford Bermuda
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets	0
Net Income (Loss)	(407,000,000)	(171,000,000)
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	3,000,000	8,000,000
Equity in (Earnings) Loss of Affiliates	350,000,000	(172,000,000)
Deferred Income Tax Provision	0	0
Other Adjustments	467,000,000	220,000,000
Net Cash Used in Operating Activities	413,000,000	(115,000,000)
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	0	0
Acquisition of Intellectual Property		0
Proceeds from Sale of Assets		0
Proceeds (Payments) from Sale of Businesses, Net	0	0
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	(47,000,000)	0
Borrowings (Repayments) Long-term Debt, Net	(438,000,000)	(13,000,000)
Borrowings (Repayments) Between Subsidiaries, Net	(17,000,000)	(381,000,000)
Other, Net	0	0
Net Cash Provided by (Used in) Financing Activities	(502,000,000)	(394,000,000)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Decrease in Cash and Cash Equivalents	(89,000,000)	(509,000,000)
Cash and Cash Equivalents at Beginning of Period	195,000,000	586,000,000
Cash and Cash Equivalents at End of Period	106,000,000	77,000,000
Weatherford Delaware
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets	0
Net Income (Loss)	(14,000,000)	57,000,000
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	(11,000,000)	2,000,000
Equity in (Earnings) Loss of Affiliates	133,000,000	(219,000,000)
Deferred Income Tax Provision	0	0
Other Adjustments	(872,000,000)	186,000,000
Net Cash Used in Operating Activities	(764,000,000)	26,000,000
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	0	0
Acquisition of Intellectual Property		0
Proceeds from Sale of Assets		0
Proceeds (Payments) from Sale of Businesses, Net	0	0
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	0	0
Borrowings (Repayments) Long-term Debt, Net	588,000,000	(1,000,000)
Borrowings (Repayments) Between Subsidiaries, Net	176,000,000	(28,000,000)
Other, Net	0	0
Net Cash Provided by (Used in) Financing Activities	764,000,000	(29,000,000)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Decrease in Cash and Cash Equivalents	0	(3,000,000)
Cash and Cash Equivalents at Beginning of Period	0	4,000,000
Cash and Cash Equivalents at End of Period	0	1,000,000
Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Proceeds from Sale of Productive Assets	0
Net Income (Loss)	1,244,000,000	147,000,000
Cash Flows from Operating Activities:
Charges from Parent or Subsidiary	(604,000,000)	0
Equity in (Earnings) Loss of Affiliates	(758,000,000)	7,000,000
Deferred Income Tax Provision		0
Other Adjustments	118,000,000	(154,000,000)
Net Cash Used in Operating Activities	0	0
Cash Flows From Investing Activities:
Capital Expenditures for Property, Plant and Equipment	0	0
Payments to Acquire Businesses, Net of Cash Acquired	0
Capital Expenditures and Acquisition of Assets Held for Sale	0
Acquisition of Intellectual Property	0	0
Proceeds from Sale of Assets		0
Proceeds (Payments) from Sale of Businesses, Net	0	0
Cash Flows From Financing Activities:
Repayments of Short-term Debt, Net	0	0
Borrowings (Repayments) Long-term Debt, Net	0	0
Borrowings (Repayments) Between Subsidiaries, Net	0	0
Other, Net	0	0
Net Cash Provided by (Used in) Financing Activities	0	0
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	0
Net Decrease in Cash and Cash Equivalents	0	0
Cash and Cash Equivalents at Beginning of Period	0	0
Cash and Cash Equivalents at End of Period	$ 0	$ 0

General - Devaluation (Details) - USD ($) $ in Millions	3 Months Ended
General - Devaluation (Details) - USD ($) $ in Millions	Mar. 31, 2018	Mar. 31, 2017	Sep. 30, 2016
Foreign exchange related charges	$ 26	$ 0	$ 0
Angola, Kwanza
Foreign exchange related charges	24
Venezuelan bolívar fuerte
Foreign exchange related charges	$ 2

(Dollars in millions)

March 31, 2018

January 1, 2018

Receivables for Product and Services in Accounts Receivable, Net