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Erroneous Compensation Amount Contribution expenses related to the defined contribution plans which cover certain employees Defined Contribution Plan, Cost Property, Plant and Equipment Disclosure Property, Plant and Equipment Disclosure [Text Block] All Executive Categories All Executive Categories [Member] Contract with Customer, Liability, Noncurrent Contract with Customer, Liability, Noncurrent Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Exit Notes Exit Notes [Member] Exit Notes [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Defined Benefit Pension Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] North America North America [Member] CANADA CANADA Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Number of Reportable Segments Number of Reportable Segments Earnings Per Share [Abstract] Subsequent Event [Line Items] Subsequent Event [Line Items] SWITZERLAND SWITZERLAND Decrease in Unrecognized Tax Benefits is Reasonably Possible Decrease in Unrecognized Tax Benefits is Reasonably Possible Trade Names Trade Names [Member] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Disputes, Litigation and Contingencies Legal Matters and Contingencies [Text Block] Volume Weighted Average Price Per Share, Expected Term Business Acquisition, Volume Weighted Average Price, Expected Term Business Acquisition, Volume Weighted Average Price, Expected Term Drilling and Evaluation Drilling and Evaluation [Member] Drilling and Evaluation [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Senior Notes Senior Notes [Member] Total Current Assets Assets, Current Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Finance Lease, Principal Payments Finance Lease, Principal Payments Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] All Individuals All Individuals [Member] Supplemental Cash Flow Information Supplemental Cash Flow Information [Abstract] Property, Plant and Equipment, Useful Lives Property, Plant and Equipment, Useful Lives [Table Text Block] Property, Plant and Equipment, Useful Lives Other Expense, Net Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Amended LC Credit Agreement Amended LC Credit Agreement [Member] Amended LC Credit Agreement Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Earnings per Share Earnings Per Share, Policy 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