$WFRD
Weatherford International plc Stock $wfrd

$wfrd Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000160392321000013 Filed on February 19, 2021

Income Statement

Concept	2020 Q4	2020	2019 Q4
Revenue	$842.0M	$3.685B	$261.0M
YoY Change	222.61%	-25.62%	-80.61%
Cost Of Revenue	$654.0M	$2.807B	$953.0M
YoY Change	-31.37%	-30.88%	-14.99%
Gross Profit	$188.0M	$878.0M	$53.00M
YoY Change	254.72%	-20.25%	-82.79%
Gross Profit Margin	22.33%	23.83%	20.31%
Selling, General & Admin	$186.0M	$837.0M	$230.0M
YoY Change	-19.13%	-10.96%	13.86%
% of Gross Profit	98.94%	95.33%	433.96%
Research & Development	$20.00M	$97.00M	$7.000M
YoY Change	185.71%	-32.17%	-78.79%
% of Gross Profit	10.64%	11.05%	13.21%
Depreciation & Amortization	$116.0M	$503.0M	$34.00M
YoY Change	241.18%	4.57%	-75.18%
% of Gross Profit	61.7%	57.29%	64.15%
Operating Expenses	$158.0M	$97.00M	$7.000M
YoY Change	2157.14%	-91.04%	-97.02%
Operating Profit	$30.00M	-$1.486B	$1.000M
YoY Change	2900.0%	-8355.56%	-98.63%
Interest Expense	-$70.00M	-$251.0M	-$12.00M
YoY Change	483.33%	-32.71%	-92.86%
% of Operating Profit	-233.33%		-1200.0%
Other Income/Expense, Net	$3.000M	-$53.00M	$0.00
YoY Change		96.3%	-100.0%
Pretax Income	-$174.0M	-$1.814B	-$15.00M
YoY Change	1060.0%	-147.69%	-99.3%
Income Tax	$21.00M	$85.00M	$9.000M
% Of Pretax Income
Net Earnings	-$200.0M	-$1.921B	-$26.00M
YoY Change	669.23%	-152.47%	-98.76%
Net Earnings / Revenue	-23.75%	-52.13%	-9.96%
Basic Earnings Per Share		-$27.44
Diluted Earnings Per Share	-$2.857M	-$27.44M	$50.31
COMMON SHARES
Basic Shares Outstanding	70.02M shares	70.00M shares	1.004B shares
Diluted Shares Outstanding		70.00M shares

Balance Sheet

Concept	2020 Q4	2020	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.118B	$1.118B	$618.0M
YoY Change	80.91%	80.91%	2.66%
Cash & Equivalents	$1.118B	$1.118B	$618.0M
Short-Term Investments
Other Short-Term Assets	$349.0M	$509.0M	$440.0M
YoY Change	-20.68%	-17.77%	-36.51%
Inventory	$717.0M	$717.0M	$972.0M
Prepaid Expenses
Receivables	$826.0M	$833.0M	$1.156B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.177B	$3.177B	$3.453B
YoY Change	-7.99%	-7.99%	0.09%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.236B	$1.374B	$2.122B
YoY Change	-41.75%	-42.22%	1.73%
Goodwill	$0.00		$239.0M
YoY Change	-100.0%		-66.48%
Intangibles	$810.0M		$1.114B
YoY Change	-27.29%		423.0%
Long-Term Investments
YoY Change
Other Assets	$73.00M	$73.00M	$109.0M
YoY Change	-33.03%	-33.03%	-21.58%
Total Long-Term Assets	$2.257B	$2.257B	$3.840B
YoY Change	-41.22%	-41.22%	21.87%
TOTAL ASSETS
Total Short-Term Assets	$3.177B	$3.177B	$3.453B
Total Long-Term Assets	$2.257B	$2.257B	$3.840B
Total Assets	$5.434B	$5.434B	$7.293B
YoY Change	-25.49%	-25.49%	10.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$325.0M	$325.0M	$585.0M
YoY Change	-44.44%	-44.44%	-20.08%
Accrued Expenses	$368.0M	$368.0M	$349.0M
YoY Change	5.44%	5.44%	40.16%
Deferred Revenue
YoY Change
Short-Term Debt	$13.00M	$4.000M	$13.00M
YoY Change	0.0%	33.33%	-96.01%
Long-Term Debt Due	$9.000M	$9.000M	$10.00M
YoY Change	-10.0%	-10.0%	-82.46%
Total Short-Term Liabilities	$1.362B	$1.362B	$1.707B
YoY Change	-20.21%	-18.54%	-25.78%
LONG-TERM LIABILITIES
Long-Term Debt	$2.601B	$2.601B	$2.151B
YoY Change	20.92%	20.92%	-71.72%
Other Long-Term Liabilities	$357.0M	$534.0M	$341.0M
YoY Change	4.69%	-3.61%	-5.8%
Total Long-Term Liabilities	$357.0M	$3.135B	$341.0M
YoY Change	4.69%	15.9%	-5.8%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.362B	$1.362B	$1.707B
Total Long-Term Liabilities	$357.0M	$3.135B	$341.0M
Total Liabilities	$4.497B	$4.527B	$4.377B
YoY Change	2.74%	2.58%	-57.37%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.947B		-$26.00M
YoY Change	7388.46%		-99.7%
Common Stock	$2.897B		$2.897B
YoY Change	0.0%		289600.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$907.0M	$907.0M	$2.931B
YoY Change
Total Liabilities & Shareholders Equity	$5.434B	$5.434B	$7.293B
YoY Change	-25.49%	-25.49%	10.48%

Cashflow Statement

Concept	2020 Q4	2020	2019 Q4
OPERATING ACTIVITIES
Net Income	-$200.0M	-$1.921B	-$26.00M
YoY Change	669.23%	-152.47%	-98.76%
Depreciation, Depletion And Amortization	$116.0M	$503.0M	$34.00M
YoY Change	241.18%	4.57%	-75.18%
Cash From Operating Activities	$22.00M	$210.0M	$61.00M
YoY Change	-63.93%	-130.61%	-41.9%
INVESTING ACTIVITIES
Capital Expenditures	-$58.00M	$154.0M	$20.00M
YoY Change	-390.0%	-154.23%	-78.49%
Acquisitions		$0.00	$0.00
YoY Change
Other Investing Activities	$48.00M	$4.000M	$1.000M
YoY Change	4700.0%	-99.05%	-99.61%
Cash From Investing Activities	-$10.00M	-$75.00M	-$14.00M
YoY Change	-28.57%	-155.56%	-108.59%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-28.00M	$348.0M	-$2.000M
YoY Change	1300.0%	-53.41%	-96.36%
NET CHANGE
Cash From Operating Activities	22.00M	$210.0M	$61.00M
Cash From Investing Activities	-10.00M	-$75.00M	-$14.00M
Cash From Financing Activities	-28.00M	$348.0M	-$2.000M
Net Change In Cash	-16.00M	$485.0M	$46.00M
YoY Change	-134.78%	147.45%	-78.4%
FREE CASH FLOW
Cash From Operating Activities	$22.00M	$210.0M	$61.00M
Capital Expenditures	-$58.00M	$154.0M	$20.00M
Free Cash Flow	$80.00M	$56.00M	$41.00M
YoY Change	95.12%	-113.93%	241.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001603923
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	Yes
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-36504
CY2020	dei	Entity Registrant Name EntityRegistrantName	Weatherford International plc
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	L2
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-0606750
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	2000 St. James Place,
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77056
CY2020	dei	City Area Code CityAreaCode	713
CY2020	dei	Local Phone Number LocalPhoneNumber	836.4000
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	No
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	true
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020	dei	Entity Bankruptcy Proceedings Reporting Current EntityBankruptcyProceedingsReportingCurrent	true
CY2020Q2	dei	Entity Public Float EntityPublicFloat	87000000	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	70017356	shares
CY2020Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	75	country
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	unit
CY2019	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2018	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2020	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	6000000	USD
CY2020	us-gaap	Revenues Revenues	3685000000	USD
CY2019Q4	us-gaap	Revenues Revenues	261000000	USD
	us-gaap	Revenues Revenues	4954000000	USD
CY2018	us-gaap	Revenues Revenues	5744000000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	97000000	USD
CY2019Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	7000000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	136000000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	139000000	USD
CY2020	wft	Selling Generaland Administrative Expense Portion Attributableto Segments SellingGeneralandAdministrativeExpensePortionAttributabletoSegments	837000000	USD
CY2019Q4	wft	Selling Generaland Administrative Expense Portion Attributableto Segments SellingGeneralandAdministrativeExpensePortionAttributabletoSegments	45000000	USD
	wft	Selling Generaland Administrative Expense Portion Attributableto Segments SellingGeneralandAdministrativeExpensePortionAttributabletoSegments	895000000	USD
CY2018	wft	Selling Generaland Administrative Expense Portion Attributableto Segments SellingGeneralandAdministrativeExpensePortionAttributabletoSegments	894000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1236000000	USD
CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1104000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2155000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	206000000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	189000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	126000000	USD
CY2020	wft	Prepetition Charges PrepetitionCharges	0	USD
CY2019Q4	wft	Prepetition Charges PrepetitionCharges	0	USD
	wft	Prepetition Charges PrepetitionCharges	86000000	USD
CY2018	wft	Prepetition Charges PrepetitionCharges	0	USD
CY2020	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	12000000	USD
CY2019Q4	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	0	USD
	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	15000000	USD
CY2018	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	0	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019Q4	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	112000000	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	5171000000	USD
CY2019Q4	us-gaap	Costs And Expenses CostsAndExpenses	260000000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	6136000000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	7828000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-1486000000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	1000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1182000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-2084000000	USD
CY2020	us-gaap	Reorganization Items ReorganizationItems	9000000	USD
CY2019Q4	us-gaap	Reorganization Items ReorganizationItems	4000000	USD
	us-gaap	Reorganization Items ReorganizationItems	-5389000000	USD
CY2018	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2020	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-266000000	USD
CY2019Q4	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-12000000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-362000000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-614000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53000000	USD
CY2019Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-26000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-59000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1814000000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-15000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3819000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2757000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85000000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	135000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-1899000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	-24000000	USD
	us-gaap	Profit Loss ProfitLoss	3684000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-2791000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22000000	USD
CY2019Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	23000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	20000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1921000000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-26000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3661000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2811000000	USD
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-27.44
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-27.44
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.37
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	3.65
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.82
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	70000000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	70000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	1004000000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	997000000	shares
CY2020	us-gaap	Profit Loss ProfitLoss	-1899000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	-24000000	USD
	us-gaap	Profit Loss ProfitLoss	3684000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-2791000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-38000000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	7000000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	52000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-240000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	14000000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2000000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	11000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-12000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	8000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	0	USD
CY2019Q4	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-52000000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	49000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-227000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-1951000000	USD
CY2019Q4	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-15000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3733000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-3018000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	22000000	USD
CY2019Q4	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2000000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	23000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	20000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1973000000	USD
CY2019Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-17000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3710000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3038000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1118000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	618000000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	182000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	32000000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	826000000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1241000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	717000000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	972000000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	349000000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	440000000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	3177000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	3453000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	367000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1236000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2122000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	239000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	173000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	9000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	810000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1114000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	138000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	256000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	109000000	USD
CY2020Q4	us-gaap	Assets Assets	5434000000	USD
CY2019Q4	us-gaap	Assets Assets	7293000000	USD
CY2020Q4	us-gaap	Debt Current DebtCurrent	13000000	USD
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	205000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	13000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	325000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	585000000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	297000000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	270000000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	185000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	71000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	79000000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	471000000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	520000000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1362000000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1672000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2601000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2151000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	177000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	213000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	357000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	341000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	4497000000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	4377000000	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1356000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1356000000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	70000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	70000000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	70000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	70000000	shares
CY2020Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	0	USD
CY2019Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	0	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2897000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2897000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1947000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-26000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-43000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	9000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	907000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	2880000000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	30000000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	36000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	937000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2916000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5434000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7293000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-571000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-2791000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-227000000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	16000000	USD
CY2018	wft	Stockholders Equity Cumulative Effect Of Adoption Of Asu StockholdersEquityCumulativeEffectOfAdoptionOfASU	-97000000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	52000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	16000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-3666000000	USD
	us-gaap	Profit Loss ProfitLoss	3684000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	49000000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	22000000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	22000000	USD
	wft	Accelerated Stock Compensationdueto Plan Effects AcceleratedStockCompensationduetoPlanEffects	24000000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2000000	USD
CY2019Q4	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	51000000	USD
CY2019Q4	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	2837000000	USD
CY2019Q4	wft	Issuanceof Sharesto Prior Shareholders IssuanceofSharestoPriorShareholders	29000000	USD
CY2019Q4	us-gaap	Adjustments To Additional Paid In Capital Warrant Issued AdjustmentsToAdditionalPaidInCapitalWarrantIssued	31000000	USD
CY2019Q4	us-gaap	Stockholders Equity Other StockholdersEquityOther	-8000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-1899000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-52000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2931000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	-24000000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2916000000	USD
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	28000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	937000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-1899000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	-24000000	USD
	us-gaap	Profit Loss ProfitLoss	3684000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-2791000000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	503000000	USD
CY2019Q4	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	34000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	447000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	556000000	USD
CY2020	wft	Debtor Reorganization Items Gainon Settlementof Lstc DebtorReorganizationItemsGainonSettlementofLSTC	0	USD
CY2019Q4	wft	Debtor Reorganization Items Gainon Settlementof Lstc DebtorReorganizationItemsGainonSettlementofLSTC	0	USD
	wft	Debtor Reorganization Items Gainon Settlementof Lstc DebtorReorganizationItemsGainonSettlementofLSTC	4297000000	USD
CY2018	wft	Debtor Reorganization Items Gainon Settlementof Lstc DebtorReorganizationItemsGainonSettlementofLSTC	0	USD
CY2020	wft	Debtor Reorganization Items Fsa Gainnetofreorgcharges DebtorReorganizationItemsFSAGainnetofreorgcharges	0	USD
CY2019Q4	wft	Debtor Reorganization Items Fsa Gainnetofreorgcharges DebtorReorganizationItemsFSAGainnetofreorgcharges	0	USD
	wft	Debtor Reorganization Items Fsa Gainnetofreorgcharges DebtorReorganizationItemsFSAGainnetofreorgcharges	1161000000	USD
CY2018	wft	Debtor Reorganization Items Fsa Gainnetofreorgcharges DebtorReorganizationItemsFSAGainnetofreorgcharges	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	814000000	USD
CY2019Q4	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	20000000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	151000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	239000000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	730000000	USD
CY2019Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1917000000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	210000000	USD
CY2019Q4	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
	us-gaap	Inventory Write Down InventoryWriteDown	159000000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	80000000	USD
CY2020	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	60000000	USD
CY2019Q4	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	0	USD
	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	145000000	USD
CY2018	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	62000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	0	USD
CY2019Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	0	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	46000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	47000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
CY2019Q4	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	112000000	USD
CY2018	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	25000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-79000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-378000000	USD
CY2019Q4	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-36000000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	135000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	70000000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-64000000	USD
CY2019Q4	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-18000000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	215000000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-86000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-250000000	USD
CY2019Q4	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-79000000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-72000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-90000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	96000000	USD
CY2019Q4	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	76000000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-11000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-111000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	210000000	USD
CY2019Q4	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	61000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-747000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-242000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	154000000	USD
CY2019Q4	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	20000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	250000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	186000000	USD
CY2020	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	0	USD
CY2019Q4	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	0	USD
	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	0	USD
CY2018	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	31000000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019Q4	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-4000000	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	4000000	USD
CY2019Q4	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	1000000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	13000000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	28000000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	11000000	USD
CY2019Q4	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	7000000	USD
	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	328000000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	257000000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	22000000	USD
CY2019Q4	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	84000000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	106000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-50000000	USD
CY2019Q4	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-75000000	USD
CY2019Q4	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-14000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	149000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	122000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	453000000	USD
CY2019Q4	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1600000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	586000000	USD
CY2020	wft	Proceeds From Debtor In Possession Financing Facility ProceedsFromDebtorInPossessionFinancingFacility	0	USD
CY2019Q4	wft	Proceeds From Debtor In Possession Financing Facility ProceedsFromDebtorInPossessionFinancingFacility	0	USD
	wft	Proceeds From Debtor In Possession Financing Facility ProceedsFromDebtorInPossessionFinancingFacility	1529000000	USD
CY2018	wft	Proceeds From Debtor In Possession Financing Facility ProceedsFromDebtorInPossessionFinancingFacility	0	USD
CY2020	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	0	USD
CY2019Q4	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	0	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	1529000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	0	USD
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	9000000	USD
CY2019Q4	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	1000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	318000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	502000000	USD
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-27000000	USD
CY2019Q4	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-1000000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-347000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	158000000	USD
CY2020	wft	Debtorin Possession Financing Paymentsand Paymentson Backstop Agreement DebtorinPossessionFinancingPaymentsandPaymentsonBackstopAgreement	0	USD
CY2019Q4	wft	Debtorin Possession Financing Paymentsand Paymentson Backstop Agreement DebtorinPossessionFinancingPaymentsandPaymentsonBackstopAgreement	0	USD
	wft	Debtorin Possession Financing Paymentsand Paymentson Backstop Agreement DebtorinPossessionFinancingPaymentsandPaymentsonBackstopAgreement	137000000	USD
CY2018	wft	Debtorin Possession Financing Paymentsand Paymentson Backstop Agreement DebtorinPossessionFinancingPaymentsandPaymentsonBackstopAgreement	0	USD
CY2020	wft	Payments For Deferred Consideration Greater Than One Year PaymentsForDeferredConsiderationGreaterThanOneYear	24000000	USD
CY2019Q4	wft	Payments For Deferred Consideration Greater Than One Year PaymentsForDeferredConsiderationGreaterThanOneYear	0	USD
	wft	Payments For Deferred Consideration Greater Than One Year PaymentsForDeferredConsiderationGreaterThanOneYear	0	USD
CY2018	wft	Payments For Deferred Consideration Greater Than One Year PaymentsForDeferredConsiderationGreaterThanOneYear	0	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-45000000	USD
CY2019Q4	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-49000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-74000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	348000000	USD
CY2019Q4	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	749000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	168000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2000000	USD
CY2019Q4	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1000000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-59000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	485000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	46000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	152000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-11000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	800000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	754000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	602000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	613000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1285000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	800000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	754000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	602000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	232000000	USD
CY2019Q4	us-gaap	Interest Paid Net InterestPaidNet	0	USD
	us-gaap	Interest Paid Net InterestPaidNet	272000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	584000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	79000000	USD
CY2019Q4	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	89000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	99000000	USD
CY2020Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	75	country
CY2020	wft	Numberof Yearsin Operation NumberofYearsinOperation	P50Y
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1356000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1356000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div><span><br/></span></div><div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts 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 allowance for credit losses, inventory valuation reserves, recoverability of long-lived assets, valuation of goodwill, useful lives used in depreciation and amortization, income taxes and related valuation allowance, accruals for contingencies, actuarial assumptions to determine costs and liabilities related to employee benefit plans, 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. </span></div><div style="text-align:justify;text-indent:18pt"><span><br/></span></div><div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For information about our use of estimates relating to Fresh Start Accounting, refer to Note 3 – Fresh Start Accounting for further details.</span></div>
CY2020Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	167000000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	182000000	USD
CY2019	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2018	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2020	us-gaap	Concentration Risk Customer ConcentrationRiskCustomer	no
CY2020	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	Derivative Financial InstrumentsWe record derivative instruments on the balance sheet at their fair value as either assets or liabilities. Changes in the fair value of derivatives are recorded each period in current earnings.
CY2019Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight	7777779	shares
CY2019Q4	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	99.96
CY2019	wft	Prepetition Charges PrepetitionCharges	86000000	USD
CY2020	us-gaap	Debtor Reorganization Items Discharge Of Claims And Liabilities DebtorReorganizationItemsDischargeOfClaimsAndLiabilities	0	USD
CY2019Q4	us-gaap	Debtor Reorganization Items Discharge Of Claims And Liabilities DebtorReorganizationItemsDischargeOfClaimsAndLiabilities	0	USD
	us-gaap	Debtor Reorganization Items Discharge Of Claims And Liabilities DebtorReorganizationItemsDischargeOfClaimsAndLiabilities	4297000000	USD
CY2020	us-gaap	Debtor Reorganization Items Revaluation Of Assets And Liabilities DebtorReorganizationItemsRevaluationOfAssetsAndLiabilities	0	USD
CY2019Q4	us-gaap	Debtor Reorganization Items Revaluation Of Assets And Liabilities DebtorReorganizationItemsRevaluationOfAssetsAndLiabilities	0	USD
	us-gaap	Debtor Reorganization Items Revaluation Of Assets And Liabilities DebtorReorganizationItemsRevaluationOfAssetsAndLiabilities	1434000000	USD
CY2020	wft	Debtor Reorganization Itemssubtotalfor Gainon Settlementof Lst Cand Fair Value Adjustment DebtorReorganizationItemssubtotalforGainonSettlementofLSTCandFairValueAdjustment	0	USD
CY2019Q4	wft	Debtor Reorganization Itemssubtotalfor Gainon Settlementof Lst Cand Fair Value Adjustment DebtorReorganizationItemssubtotalforGainonSettlementofLSTCandFairValueAdjustment	0	USD
	wft	Debtor Reorganization Itemssubtotalfor Gainon Settlementof Lst Cand Fair Value Adjustment DebtorReorganizationItemssubtotalforGainonSettlementofLSTCandFairValueAdjustment	5731000000	USD
CY2020	us-gaap	Debtor Reorganization Items Write Off Of Deferred Financing Costs And Debt Discounts DebtorReorganizationItemsWriteOffOfDeferredFinancingCostsAndDebtDiscounts	0	USD
CY2019Q4	us-gaap	Debtor Reorganization Items Write Off Of Deferred Financing Costs And Debt Discounts DebtorReorganizationItemsWriteOffOfDeferredFinancingCostsAndDebtDiscounts	0	USD
	us-gaap	Debtor Reorganization Items Write Off Of Deferred Financing Costs And Debt Discounts DebtorReorganizationItemsWriteOffOfDeferredFinancingCostsAndDebtDiscounts	128000000	USD
CY2020	wft	Debtor Reorganization Items Unamortized Gain Loss On Derivative DebtorReorganizationItemsUnamortizedGainLossOnDerivative	0	USD
CY2019Q4	wft	Debtor Reorganization Items Unamortized Gain Loss On Derivative DebtorReorganizationItemsUnamortizedGainLossOnDerivative	0	USD
	wft	Debtor Reorganization Items Unamortized Gain Loss On Derivative DebtorReorganizationItemsUnamortizedGainLossOnDerivative	-8000000	USD
CY2020	us-gaap	Debtor Reorganization Items Impairment Loss DebtorReorganizationItemsImpairmentLoss	0	USD
CY2019Q4	us-gaap	Debtor Reorganization Items Impairment Loss DebtorReorganizationItemsImpairmentLoss	0	USD
	us-gaap	Debtor Reorganization Items Impairment Loss DebtorReorganizationItemsImpairmentLoss	136000000	USD
CY2020	wft	Debtor Reorganization Items Backstop Commitment Fees DebtorReorganizationItemsBackstopCommitmentFees	0	USD
CY2019Q4	wft	Debtor Reorganization Items Backstop Commitment Fees DebtorReorganizationItemsBackstopCommitmentFees	0	USD
	wft	Debtor Reorganization Items Backstop Commitment Fees DebtorReorganizationItemsBackstopCommitmentFees	81000000	USD
CY2020	wft	Debtor Reorganization Items Dip Financing Fees DebtorReorganizationItemsDIPFinancingFees	0	USD
CY2019Q4	wft	Debtor Reorganization Items Dip Financing Fees DebtorReorganizationItemsDIPFinancingFees	0	USD
	wft	Debtor Reorganization Items Dip Financing Fees DebtorReorganizationItemsDIPFinancingFees	56000000	USD
CY2020	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	9000000	USD
CY2019Q4	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	4000000	USD
	us-gaap	Debtor Reorganization Items Legal And Advisory Professional Fees DebtorReorganizationItemsLegalAndAdvisoryProfessionalFees	69000000	USD
CY2020	wft	Debtor Reorganization Items Fees DebtorReorganizationItemsFees	9000000	USD
CY2019Q4	wft	Debtor Reorganization Items Fees DebtorReorganizationItemsFees	4000000	USD
	wft	Debtor Reorganization Items Fees DebtorReorganizationItemsFees	206000000	USD
CY2020	us-gaap	Reorganization Items ReorganizationItems	9000000	USD
CY2019Q4	us-gaap	Reorganization Items ReorganizationItems	4000000	USD
	us-gaap	Reorganization Items ReorganizationItems	-5389000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Inventories FreshStartAdjustmentIncreaseDecreaseInventories	987000000	USD
CY2020	wft	Debtor Reorganization Items Fees Unpaid DebtorReorganizationItemsFeesUnpaid	0	USD
CY2019Q4	wft	Debtor Reorganization Items Fees Unpaid DebtorReorganizationItemsFeesUnpaid	30000000	USD
	wft	Debtor Reorganization Items Fees Unpaid DebtorReorganizationItemsFeesUnpaid	30000000	USD
CY2020	wft	Debtor Reorganization Items Fees Paid DebtorReorganizationItemsFeesPaid	39000000	USD
CY2019Q4	wft	Debtor Reorganization Items Fees Paid DebtorReorganizationItemsFeesPaid	4000000	USD
	wft	Debtor Reorganization Items Fees Paid DebtorReorganizationItemsFeesPaid	176000000	USD
CY2019Q4	us-gaap	Liabilities Subject To Compromise LiabilitiesSubjectToCompromise	7600000000	USD
CY2019Q4	wft	Liabilities Subject To Compromise Accrued Interest LiabilitiesSubjectToCompromiseAccruedInterest	207000000	USD
CY2019Q4	us-gaap	Liabilities Subject To Compromise Debt And Accrued Interest LiabilitiesSubjectToCompromiseDebtAndAccruedInterest	7634000000	USD
	us-gaap	Liabilities Subject To Compromise Expense Reversal Of Expense For Liabilities LiabilitiesSubjectToCompromiseExpenseReversalOfExpenseForLiabilities	257000000	USD
CY2019Q4	us-gaap	Reorganization Value Present Value Of Discounted Cash Flows Of Emerging Entity ReorganizationValuePresentValueOfDiscountedCashFlowsOfEmergingEntity	4500000000	USD
CY2019Q4	us-gaap	Reorganization Value Present Value Of Discounted Cash Flows Of Emerging Entity ReorganizationValuePresentValueOfDiscountedCashFlowsOfEmergingEntity	4500000000	USD
CY2019Q4	us-gaap	Reorganization Value Present Value Of Discounted Cash Flows Of Emerging Entity ReorganizationValuePresentValueOfDiscountedCashFlowsOfEmergingEntity	4516000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Prepaid And Other Current Assets FreshStartAdjustmentIncreaseDecreasePrepaidAndOtherCurrentAssets	494000000	USD
CY2019Q4	wft	Postconfirmation Cash And Cash Equivalents Restricted Cash And Cash Equivalents Current PostconfirmationCashAndCashEquivalentsRestrictedCashAndCashEquivalentsCurrent	518000000	USD
CY2019Q4	us-gaap	Postconfirmation Postconfirmation Credit Facility PostconfirmationPostconfirmationCreditFacility	2103000000	USD
CY2019Q4	us-gaap	Postconfirmation Stockholders Equity PostconfirmationStockholdersEquity	2931000000	USD
CY2019Q4	us-gaap	Reorganization Value Present Value Of Discounted Cash Flows Of Emerging Entity ReorganizationValuePresentValueOfDiscountedCashFlowsOfEmergingEntity	4516000000	USD
CY2019Q4	wft	Postconfirmation Cash And Cash Equivalents Restricted Cash And Cash Equivalents Current PostconfirmationCashAndCashEquivalentsRestrictedCashAndCashEquivalentsCurrent	518000000	USD
CY2019Q4	us-gaap	Postconfirmation Current Liabilities PostconfirmationCurrentLiabilities	1707000000	USD
CY2019Q4	us-gaap	Postconfirmation Other Noncurrent Obligations PostconfirmationOtherNoncurrentObligations	627000000	USD
CY2019Q4	us-gaap	Reorganization Value ReorganizationValue	7368000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Cash And Cash Equivalents FreshStartAdjustmentIncreaseDecreaseCashAndCashEquivalents	641000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Cash And Cash Equivalents FreshStartAdjustmentIncreaseDecreaseCashAndCashEquivalents	493000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Restricted Cash And Cash Equivalents Current FreshStartAdjustmentIncreaseDecreaseRestrictedCashAndCashEquivalentsCurrent	398000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Restricted Cash And Cash Equivalents Current FreshStartAdjustmentIncreaseDecreaseRestrictedCashAndCashEquivalentsCurrent	261000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Receivables Net FreshStartAdjustmentIncreaseDecreaseReceivablesNet	1274000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Receivables Net FreshStartAdjustmentIncreaseDecreaseReceivablesNet	1274000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Inventories FreshStartAdjustmentIncreaseDecreaseInventories	1071000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Prepaid And Other Current Assets FreshStartAdjustmentIncreaseDecreasePrepaidAndOtherCurrentAssets	476000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Assets FreshStartAdjustmentIncreaseDecreaseCurrentAssets	3878000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Assets FreshStartAdjustmentIncreaseDecreaseCurrentAssets	3491000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	1838000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	2127000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Goodwill FreshStartAdjustmentIncreaseDecreaseGoodwill	0	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Goodwill FreshStartAdjustmentIncreaseDecreaseGoodwill	239000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Amortizable Intangible Assets FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets	166000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Amortizable Intangible Assets FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets	1123000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Assets Noncurrent FreshStartAdjustmentIncreaseDecreaseOtherAssetsNoncurrent	336000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Assets Noncurrent FreshStartAdjustmentIncreaseDecreaseOtherAssetsNoncurrent	388000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Assets FreshStartAdjustmentIncreaseDecreaseAssets	6218000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Assets FreshStartAdjustmentIncreaseDecreaseAssets	7368000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Debtor In Possession Financing FreshStartAdjustmentIncreaseDecreaseDebtorInPossessionFinancing	1528000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Debtor In Possession Financing FreshStartAdjustmentIncreaseDecreaseDebtorInPossessionFinancing	0	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Maturities Of Long Term Debt FreshStartAdjustmentIncreaseDecreaseCurrentMaturitiesOfLongTermDebt	319000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accounts Payable FreshStartAdjustmentIncreaseDecreaseAccountsPayable	667000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Maturities Of Long Term Debt FreshStartAdjustmentIncreaseDecreaseCurrentMaturitiesOfLongTermDebt	13000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accounts Payable FreshStartAdjustmentIncreaseDecreaseAccountsPayable	663000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accrued Liabilities FreshStartAdjustmentIncreaseDecreaseAccruedLiabilities	263000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accrued Liabilities FreshStartAdjustmentIncreaseDecreaseAccruedLiabilities	263000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Deferred Income Tax Liabilities Current FreshStartAdjustmentIncreaseDecreaseDeferredIncomeTaxLiabilitiesCurrent	214000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Deferred Income Tax Liabilities Current FreshStartAdjustmentIncreaseDecreaseDeferredIncomeTaxLiabilitiesCurrent	214000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Current Liabilities FreshStartAdjustmentIncreaseDecreaseOtherCurrentLiabilities	618000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Current Liabilities FreshStartAdjustmentIncreaseDecreaseOtherCurrentLiabilities	557000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Liabilities FreshStartAdjustmentIncreaseDecreaseCurrentLiabilities	3609000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Current Liabilities FreshStartAdjustmentIncreaseDecreaseCurrentLiabilities	1710000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Long Term Debt FreshStartAdjustmentIncreaseDecreaseLongTermDebt	60000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Long Term Debt FreshStartAdjustmentIncreaseDecreaseLongTermDebt	2151000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Noncurrent Obligations FreshStartAdjustmentIncreaseDecreaseOtherNoncurrentObligations	518000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Other Noncurrent Obligations FreshStartAdjustmentIncreaseDecreaseOtherNoncurrentObligations	576000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Liabilities Not Subject To Compromise FreshStartAdjustmentIncreaseDecreaseLiabilitiesNotSubjectToCompromise	4187000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Liabilities Not Subject To Compromise FreshStartAdjustmentIncreaseDecreaseLiabilitiesNotSubjectToCompromise	4437000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Liabilities Subject To Compromise FreshStartAdjustmentIncreaseDecreaseLiabilitiesSubjectToCompromise	7634000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Liabilities Subject To Compromise FreshStartAdjustmentIncreaseDecreaseLiabilitiesSubjectToCompromise	0	USD
CY2019Q4	wft	Fresh Start Adjustment Cancellation Of Predecessor Common Stock FreshStartAdjustmentCancellationOfPredecessorCommonStock	-1000000	USD
CY2019Q4	wft	Fresh Start Adjustment Issuance Of Successor Common Stock To Stockholders FreshStartAdjustmentIssuanceOfSuccessorCommonStockToStockholders	0	USD
CY2019Q4	us-gaap	Preconfirmation Additional Paid In Capital PreconfirmationAdditionalPaidInCapital	6733000000	USD
CY2019Q4	us-gaap	Postconfirmation Additional Paid In Capital PostconfirmationAdditionalPaidInCapital	2897000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Retained Earnings Deficit FreshStartAdjustmentIncreaseDecreaseRetainedEarningsDeficit	-10682000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accumulated Other Comprehensive Income Loss FreshStartAdjustmentIncreaseDecreaseAccumulatedOtherComprehensiveIncomeLoss	-1697000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Stockholders Equity Parent FreshStartAdjustmentIncreaseDecreaseStockholdersEquityParent	-5645000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Stockholders Equity Parent FreshStartAdjustmentIncreaseDecreaseStockholdersEquityParent	2897000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Stockholders Equity Noncontrolling Interests FreshStartAdjustmentIncreaseDecreaseStockholdersEquityNoncontrollingInterests	42000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Stockholders Equity Noncontrolling Interests FreshStartAdjustmentIncreaseDecreaseStockholdersEquityNoncontrollingInterests	34000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Stockholders Equity FreshStartAdjustmentIncreaseDecreaseStockholdersEquity	-5603000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Stockholders Equity FreshStartAdjustmentIncreaseDecreaseStockholdersEquity	2931000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Liabilities And Stockholders Equity FreshStartAdjustmentIncreaseDecreaseLiabilitiesAndStockholdersEquity	6218000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Liabilities And Stockholders Equity FreshStartAdjustmentIncreaseDecreaseLiabilitiesAndStockholdersEquity	7368000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Inventories FreshStartAdjustmentIncreaseDecreaseInventories	987000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Inventories FreshStartAdjustmentIncreaseDecreaseInventories	1071000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Propertyand Equipment Gross FreshStartAdjustmentIncreaseDecreasePropertyandEquipmentGross	2127000000	USD
CY2019Q4	wft	Fresh Start Adjustment Increase Decrease Propertyand Equipment Gross FreshStartAdjustmentIncreaseDecreasePropertyandEquipmentGross	7445000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accumulated Depreciation And Amortization FreshStartAdjustmentIncreaseDecreaseAccumulatedDepreciationAndAmortization	0	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Accumulated Depreciation And Amortization FreshStartAdjustmentIncreaseDecreaseAccumulatedDepreciationAndAmortization	-5607000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	2127000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Property And Equipment Net FreshStartAdjustmentIncreaseDecreasePropertyAndEquipmentNet	1838000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Amortizable Intangible Assets FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets	1123000000	USD
CY2019Q4	us-gaap	Fresh Start Adjustment Increase Decrease Amortizable Intangible Assets FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets	166000000	USD
CY2020	wft	Asset Write Downand Other AssetWriteDownandOther	814000000	USD
CY2019Q4	wft	Asset Write Downand Other AssetWriteDownandOther	0	USD
	wft	Asset Write Downand Other AssetWriteDownandOther	20000000	USD
CY2018	wft	Asset Write Downand Other AssetWriteDownandOther	151000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	239000000	USD
CY2019Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	730000000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1917000000	USD
CY2020	wft	Inventory Related Impairments Or Charges InventoryRelatedImpairmentsOrCharges	138000000	USD
CY2019Q4	wft	Inventory Related Impairments Or Charges InventoryRelatedImpairmentsOrCharges	0	USD
	wft	Inventory Related Impairments Or Charges InventoryRelatedImpairmentsOrCharges	117000000	USD
CY2018	wft	Inventory Related Impairments Or Charges InventoryRelatedImpairmentsOrCharges	0	USD
CY2020	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	11000000	USD
CY2019Q4	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	132000000	USD
CY2018	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	58000000	USD
CY2020	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	34000000	USD
CY2019Q4	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	USD
	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	105000000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	29000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1236000000	USD
CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1104000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2155000000	USD
CY2020Q4	wft	Transferof Accounts Receivable Accountedforas Sales Carrying Value TransferofAccountsReceivableAccountedforasSalesCarryingValue	90000000	USD
CY2019Q4	wft	Transferof Accounts Receivable Accountedforas Sales Carrying Value TransferofAccountsReceivableAccountedforasSalesCarryingValue	7000000	USD
CY2019Q4	wft	Transferof Accounts Receivable Accountedforas Sales Carrying Value TransferofAccountsReceivableAccountedforasSalesCarryingValue	199000000	USD
CY2018Q4	wft	Transferof Accounts Receivable Accountedforas Sales Carrying Value TransferofAccountsReceivableAccountedforasSalesCarryingValue	382000000	USD
CY2020	wft	Proceedsfrom Saleof Accounts Receivable ProceedsfromSaleofAccountsReceivable	79000000	USD
CY2019Q4	wft	Proceedsfrom Saleof Accounts Receivable ProceedsfromSaleofAccountsReceivable	7000000	USD
	wft	Proceedsfrom Saleof Accounts Receivable ProceedsfromSaleofAccountsReceivable	186000000	USD
CY2018	wft	Proceedsfrom Saleof Accounts Receivable ProceedsfromSaleofAccountsReceivable	373000000	USD
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	119000000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	655000000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	830000000	USD
CY2020Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	62000000	USD
CY2019Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	142000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	717000000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	972000000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	210000000	USD
CY2019Q4	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
	us-gaap	Inventory Write Down InventoryWriteDown	159000000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	80000000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	210000000	USD
CY2019Q4	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	159000000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	80000000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	515000000	USD
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	571000000	USD
CY2020Q4	wft	Rentaland Service Equipment Gross RentalandServiceEquipmentGross	869000000	USD
CY2019Q4	wft	Rentaland Service Equipment Gross RentalandServiceEquipmentGross	1296000000	USD
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	219000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	367000000	USD
CY2019Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	280000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1603000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2147000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1236000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2122000000	USD
CY2020	us-gaap	Depreciation Depreciation	340000000	USD
CY2019Q4	us-gaap	Depreciation Depreciation	25000000	USD
	us-gaap	Depreciation Depreciation	386000000	USD
CY2018	us-gaap	Depreciation Depreciation	493000000	USD
CY2020	wft	Asset Write Downand Other AssetWriteDownandOther	814000000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	571000000	USD
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	155000000	USD
CY2020	wft	Operating Lease Rightof Use Asset Impairment Charge OperatingLeaseRightofUseAssetImpairmentCharge	88000000	USD
CY2020	wft	Asset Write Downand Other AssetWriteDownandOther	814000000	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	20000000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	151000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	713000000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	730000000	USD
	us-gaap	Goodwill Transfers GoodwillTransfers	4000000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	13000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	0	USD
CY2019Q4	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	239000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	239000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	239000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	730000000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1900000000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	3400000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	983000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	173000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	810000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1123000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	9000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1114000000	USD
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	155000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	163000000	USD
CY2019Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	61000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	63000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	157000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	157000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	157000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	144000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	40000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	206000000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	189000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	126000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	206000000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	189000000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	91000000	USD
CY2019Q4	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	126000000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	76000000	USD
CY2019Q4	us-gaap	Operating Lease Expense OperatingLeaseExpense	5000000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	109000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	63000000	USD
CY2020	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	139000000	USD
CY2019Q4	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	10000000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	200000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	15000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1000000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	11000000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	6000000	USD
CY2019Q4	us-gaap	Sublease Income SubleaseIncome	1000000	USD
	us-gaap	Sublease Income SubleaseIncome	6000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	148000000	USD
CY2019Q4	us-gaap	Lease Cost LeaseCost	10000000	USD
	us-gaap	Lease Cost LeaseCost	205000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	187000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	91000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	14000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	69000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	12000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	39000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	12000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	11000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	22000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	14000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	380000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	11000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	131000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	28000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	74000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	132000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	17000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	248000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	57000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	101000000	USD
CY2019Q4	us-gaap	Operating Lease Payments OperatingLeasePayments	5000000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	131000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	5000000	USD
CY2019Q4	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	0	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	4000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	9000000	USD
CY2019Q4	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1000000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	8000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	37000000	USD
CY2019Q4	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2000000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	59000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4000000	USD
CY2019Q4	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	6000000	USD
CY2020	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	0	USD
CY2019Q4	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	0	USD
	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	34000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y1M6D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y9M18D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P5Y10M24D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M12D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.096
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.092
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.091
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.091
CY2020Q4	us-gaap	Debt Current DebtCurrent	13000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	13000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2601000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2151000000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	25000000	USD
CY2020Q4	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	15000000	USD
CY2020Q3	wft	Debt Instrument Covenant Minimum Liquidity DebtInstrumentCovenantMinimumLiquidity	200000000	USD
CY2020Q4	wft	Debt Instrument Covenant Minimum Liquidity DebtInstrumentCovenantMinimumLiquidity	175000000	USD
CY2020Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	48000000	USD
CY2020Q4	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	12000000	USD
CY2020	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	15000000	USD
CY2020Q4	wft	Debt Instrument Covenant Minimum Liquidity DebtInstrumentCovenantMinimumLiquidity	175000000	USD
CY2020Q4	wft	Debt Instrument Liquidity DebtInstrumentLiquidity	928000000	USD
CY2020Q4	wft	Debt Instrument Covenant Minimum Secured Liquidity DebtInstrumentCovenantMinimumSecuredLiquidity	125000000	USD
CY2020Q4	wft	Debt Instrument Secured Liquidity DebtInstrumentSecuredLiquidity	779000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	13000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	8000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	8000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2608000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	8000000	USD
CY2020Q2	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	6.43
CY2020Q2	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight	84500000	shares
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	16000000	USD
CY2020Q4	wft	Sum Of Total Debt Maturities SumOfTotalDebtMaturities	2661000000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	-47000000	USD
CY2020Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2614000000	USD
CY2018	wft	Bond Tender Premium Net BondTenderPremiumNet	-34000000	USD
CY2016Q4	us-gaap	Class Of Warrant Or Right Unissued ClassOfWarrantOrRightUnissued	1	shares
CY2018	us-gaap	Fair Value Adjustment Of Warrants FairValueAdjustmentOfWarrants	-70000000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	2000000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	5000000	USD
CY2019	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	5000000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	8000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	231000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	198000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	12000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	2000000	USD
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	5000000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	90000000	USD
CY2019Q4	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9000000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	110000000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	113000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	25000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-79000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85000000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	135000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.250
CY2019Q4	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.250
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.0783
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.0783
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	182000000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	330000000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-454000000	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2000000	USD
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	299000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-216000000	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	65000000	USD
	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-197000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	387000000	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-56000000	USD
	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-17000000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-166000000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	27000000	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	2000000	USD
	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	18000000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	29000000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	0	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	135000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34000000	USD
	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	495000000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	0	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2019Q4	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-463000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85000000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9000000	USD
	wft	Income Tax Expense Benefit Related To Fresh Start Accounting Adjustment IncomeTaxExpenseBenefitRelatedToFreshStartAccountingAdjustment	32000000	USD
	wft	Income Tax Expense Benefit Related To Impairments IncomeTaxExpenseBenefitRelatedToImpairments	-14000000	USD
	wft	Gain On Settlement Of Lstc Used In Tax Calculation GainOnSettlementOfLSTCUsedInTaxCalculation	4300000000	USD
CY2018	wft	Tax Benefit Recognized From Goodwill Impairment TaxBenefitRecognizedFromGoodwillImpairment	70000000	USD
CY2018	us-gaap	Goodwill Impairment Loss Net Of Tax GoodwillImpairmentLossNetOfTax	1900000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	881000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	696000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	39000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	175000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	155000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	11000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	11000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	30000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	26000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	129000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	63000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	52000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	67000000	USD
CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	55000000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	56000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	84000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	87000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	92000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	121000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1499000000	USD
CY2020	wft	Operating Loss Carryforward Expected Utilization In The Future OperatingLossCarryforwardExpectedUtilizationInTheFuture	639000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1166000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	49000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	116000000	USD
CY2020	wft	Tax Effect Of The Anticipated Expired Operating Loss Carryforward TaxEffectOfTheAnticipatedExpiredOperatingLossCarryforward	257000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	45000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	66000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	55000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	49000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	121000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5000000	USD
CY2020Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	1300000000	USD
CY2020	wft	Cancellation Of Debt Income CancellationOfDebtIncome	480000000	USD
CY2020Q4	wft	Annual Limitation Of Operating Loss Carryforwards AnnualLimitationOfOperatingLossCarryforwards	23000000	USD
CY2020Q4	wft	Operating Loss Carryforwards Estimated To Expire Before Use OperatingLossCarryforwardsEstimatedToExpireBeforeUse	1200000000	USD
CY2020	us-gaap	Income Tax Credits And Adjustments IncomeTaxCreditsAndAdjustments	11000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	214000000	USD
CY2020Q4	wft	Operating Loss Carryforward Before Adjustment For Expected Expiration OperatingLossCarryforwardBeforeAdjustmentForExpectedExpiration	5600000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	213000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	195000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	217000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	34000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	31000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4000000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	17000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	9000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	21000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	14000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1000000	USD
	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	20000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	18000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	23000000	USD
CY2020	wft	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	-9000000	USD
CY2020Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	4000000	USD
CY2019Q4	wft	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	0	USD
	wft	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	-7000000	USD
CY2018	wft	Unrecognized Tax Benefits Increase Decrease Resultingfrom Foreign Currency Translation UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromForeignCurrencyTranslation	-17000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	222000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	214000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	213000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	195000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	11000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1000000	USD
	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	15000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	89000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	77000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	60000000	USD
CY2020Q4	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	75	country
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	49000000	USD
CY2020Q4	us-gaap	Litigation Reserve LitigationReserve	43000000	USD
CY2019Q4	us-gaap	Litigation Reserve LitigationReserve	44000000	USD
CY2010Q4	us-gaap	Loss Contingency Pending Claims Number LossContingencyPendingClaimsNumber	3	claim
CY2015Q3	us-gaap	Loss Contingency Patents Allegedly Infringed Number LossContingencyPatentsAllegedlyInfringedNumber	7	patent
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	6000000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	1009000000	shares
CY2019	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Ownshare Lending Arrangement Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedOwnshareLendingArrangementIssuanceCosts	2900000000	USD
CY2019Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Each Warrant Or Right ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight	7777779	shares
CY2019Q4	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	99.96
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1746000000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	40000000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-9000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1697000000	USD
	us-gaap	Temporary Equity Elimination As Partof Reorganization TemporaryEquityEliminationAsPartofReorganization	1697000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	0	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	9000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	9000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-52000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-43000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	8000000	shares
CY2019Q4	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	0	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	46000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	47000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1921000000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-26000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	3661000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-2811000000	USD
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	70000000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	70000000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	1004000000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	997000000	shares
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-27.44
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.37
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	3.65
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.82
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000000	shares
CY2019Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	197000000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	251000000	shares
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	3685000000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	261000000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	4954000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	5744000000	USD
CY2020	us-gaap	Revenues Revenues	3685000000	USD
CY2019Q4	us-gaap	Revenues Revenues	261000000	USD
	us-gaap	Revenues Revenues	4954000000	USD
CY2018	us-gaap	Revenues Revenues	5744000000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	792000000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1156000000	USD
CY2020Q4	wft	Equipment Receivables EquipmentReceivables	34000000	USD
CY2019Q4	wft	Equipment Receivables EquipmentReceivables	85000000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	7000000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	3000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	37000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	12000000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	10000000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	61000000	USD
CY2019	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract	29000000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	unit
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1236000000	USD
CY2019Q4	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1104000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2155000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	206000000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	189000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	126000000	USD
CY2020	wft	Prepetition Charges PrepetitionCharges	0	USD
CY2019Q4	wft	Prepetition Charges PrepetitionCharges	0	USD
	wft	Prepetition Charges PrepetitionCharges	86000000	USD
CY2018	wft	Prepetition Charges PrepetitionCharges	0	USD
CY2020	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	12000000	USD
CY2019Q4	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	0	USD
	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	15000000	USD
CY2018	wft	Gain On Sale Of Operational Assets GainOnSaleOfOperationalAssets	0	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019Q4	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	112000000	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-1486000000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	1000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-1182000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-2084000000	USD
CY2020	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-266000000	USD
CY2019Q4	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-12000000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-362000000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-614000000	USD
CY2020	us-gaap	Reorganization Items ReorganizationItems	9000000	USD
CY2019Q4	us-gaap	Reorganization Items ReorganizationItems	4000000	USD
	us-gaap	Reorganization Items ReorganizationItems	-5389000000	USD
CY2018	us-gaap	Reorganization Items ReorganizationItems	0	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-53000000	USD
CY2019Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-26000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-59000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1814000000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-15000000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3819000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2757000000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	503000000	USD
CY2019Q4	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	34000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	447000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	556000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	154000000	USD
CY2019Q4	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	20000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	250000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	186000000	USD
CY2020Q4	us-gaap	Assets Assets	5434000000	USD
CY2019Q4	us-gaap	Assets Assets	7293000000	USD
CY2020Q4	wft	Noncurrent Deferred Taxes Assets Excluded From Long Lived Assets NoncurrentDeferredTaxesAssetsExcludedFromLongLivedAssets	15000000	USD
CY2019Q4	wft	Noncurrent Deferred Taxes Assets Excluded From Long Lived Assets NoncurrentDeferredTaxesAssetsExcludedFromLongLivedAssets	39000000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1435000000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	2448000000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	119000000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4000000	USD
CY2018Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	305000000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5000000	USD
CY2017Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	635000000	USD
CY2018Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	305000000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	16000000	USD

Files In Submission

Name	View Source	Status
0001603923-21-000013-index-headers.html	Edgar Link	pending
0001603923-21-000013-index.html	Edgar Link	pending
0001603923-21-000013.txt	Edgar Link	pending
0001603923-21-000013-xbrl.zip	Edgar Link	pending
ex211-sigsubswft123120xwor.htm	Edgar Link	pending
ex311ceo302certwft123120-w.htm	Edgar Link	pending
ex312cfo302certwft123120-w.htm	Edgar Link	pending
ex321ceo906certwft123120-w.htm	Edgar Link	pending
ex322cfo906certwft123120-w.htm	Edgar Link	pending
exhibit1024amendedandresta.htm	Edgar Link	pending
exhibit41descriptionofsecu.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wft-20201231.htm	Edgar Link	pending
wft-20201231.xsd	Edgar Link	pending
wft-20201231_cal.xml	Edgar Link	unprocessable
wft-20201231_def.xml	Edgar Link	unprocessable
wft-20201231_htm.xml	Edgar Link	completed
wft-20201231_lab.xml	Edgar Link	unprocessable
wft-20201231_pre.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$WFRD
Weatherford International plc Stock $wfrd

2020 Q4 Form 10-K Financial Statement

#000160392321000013 Filed on February 19, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WFRD Weatherford International plc Stock $wfrd

2020 Q4 Form 10-K Financial Statement

#000160392321000013 Filed on February 19, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WFRD
Weatherford International plc Stock $wfrd