20-F Filing

SEADRILL LTD CIK: 1737706 FY 2021

Filing Information

Form Type	20-F
Accession Number	`0001628280-22-011225`
Period End Date	20211231
Filing Date	20220429
Fiscal Year	2021
Fiscal Period	FY
XBRL Instance	sdrl-20211231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 81 Income Statement 108 Cash Flow Statement 169 Stockholders Equity 32 Comprehensive Income 27

Balance Sheet 81 line items

Line Item	Tag	Value	Unit	Period
Common shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	138.88M	shares	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	138.88M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$312.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$491.00M	USD	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	100.23M	shares	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$160.00M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$103.00M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$125.00M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$169.00M	USD	Point-in-time
Amount due from related parties, net	`DueFromRelatedPartiesCurrent`	$28.00M	USD	Point-in-time
Amount due from related parties, net	`DueFromRelatedPartiesCurrent`	$85.00M	USD	Point-in-time
Assets held for sale - current	`AssetsHeldForSaleNotPartOfDisposalGroupCurrent`	$74.00M	USD	Point-in-time
Assets held for sale - current	`AssetsHeldForSaleNotPartOfDisposalGroupCurrent`	$1.10B	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$184.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$191.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.06B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.96B	USD	Point-in-time
Investments, book value	`EquityMethodInvestments`	$27.00M	USD	Point-in-time
Investments, book value	`EquityMethodInvestments`	$24.00M	USD	Point-in-time
Drilling units	`DrillingUnitsNet`	$1.78B	USD	Point-in-time
Drilling units	`DrillingUnitsNet`	$2.12B	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsNoncurrent`	$63.00M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsNoncurrent`	$65.00M	USD	Point-in-time
Deferred tax assets	`DeferredIncomeTaxAssetsNet`	$11.00M	USD	Point-in-time
Deferred tax assets	`DeferredIncomeTaxAssetsNet`	$9.00M	USD	Point-in-time
Equipment	`PropertyPlantAndEquipmentOtherNet`	$19.00M	USD	Point-in-time
Equipment	`PropertyPlantAndEquipmentOtherNet`	$11.00M	USD	Point-in-time
Amount due from related parties, net	`DueFromRelatedPartiesNoncurrent`	$6.00M	USD	Point-in-time
Amount due from related parties, net	`DueFromRelatedPartiesNoncurrent`	-	USD	Point-in-time
Assets held for sale - non-current	`AssetsHeldForSaleNotPartOfDisposalGroupNonCurrent`	-	USD	Point-in-time
Assets held for sale - non-current	`AssetsHeldForSaleNotPartOfDisposalGroupNonCurrent`	$611.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$27.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$45.00M	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$2.90B	USD	Point-in-time
Total non-current assets	`AssetsNoncurrent`	$1.92B	USD	Point-in-time
Total assets	`Assets`	$3.88B	USD	Point-in-time
Total assets	`Assets`	$3.96B	USD	Point-in-time
Debt due within one year	`LongTermDebtCurrent`	$5.66B	USD	Point-in-time
Debt due within one year	`LongTermDebtCurrent`	-	USD	Point-in-time
Trade accounts payable	`AccountsPayableCurrent`	$59.00M	USD	Point-in-time
Trade accounts payable	`AccountsPayableCurrent`	$45.00M	USD	Point-in-time
Amounts due to related parties - current	`DueToRelatedPartiesCurrent`	$7.00M	USD	Point-in-time
Amounts due to related parties - current	`DueToRelatedPartiesCurrent`	-	USD	Point-in-time
Liabilities associated with assets held for sale - current	`LiabilitiesAssociatedWithHeldForSaleCurrent`	$948.00M	USD	Point-in-time
Liabilities associated with assets held for sale - current	`LiabilitiesAssociatedWithHeldForSaleCurrent`	$546.00M	USD	Point-in-time
Other current liabilities	`OtherAccruedLiabilitiesCurrent`	$285.00M	USD	Point-in-time
Other current liabilities	`OtherAccruedLiabilitiesCurrent`	$230.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$6.54B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.24B	USD	Point-in-time
Liabilities subject to compromise	`LiabilitiesSubjectToCompromise`	$6.24B	USD	Point-in-time
Liabilities subject to compromise	`LiabilitiesSubjectToCompromise`	-	USD	Point-in-time
Long-term debt due to related parties	`DueToRelatedPartiesNoncurrent`	-	USD	Point-in-time
Long-term debt due to related parties	`DueToRelatedPartiesNoncurrent`	$426.00M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$9.00M	USD	Point-in-time
Deferred tax liabilities	`DeferredIncomeTaxLiabilitiesNet`	$10.00M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$120.00M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$114.00M	USD	Point-in-time
Total non-current liabilities	`LiabilitiesNoncurrent`	$123.00M	USD	Point-in-time
Total non-current liabilities	`LiabilitiesNoncurrent`	$556.00M	USD	Point-in-time
Commitments and contingencies (see Note 30)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (see Note 30)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common shares of par value US$0.10 per share 138,880,000 shares authorized and 100,384,435 issued at December 31, 2021 and December 31, 2020	`CommonStockValue`	$10.00M	USD	Point-in-time
Common shares of par value US$0.10 per share 138,880,000 shares authorized and 100,384,435 issued at December 31, 2021 and December 31, 2020	`CommonStockValue`	$10.00M	USD	Point-in-time
Common shares of par value US$0.10 per share 138,880,000 shares authorized and 100,384,435 issued at December 31, 2021 and December 31, 2020	`CommonStockValue`	$10.00M	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$3.50B	USD	Point-in-time
Additional paid in capital	`AdditionalPaidInCapital`	$3.50B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-26.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-15.00M	USD	Point-in-time
Retained loss	`RetainedEarningsAccumulatedDeficit`	$-6.63B	USD	Point-in-time
Retained loss	`RetainedEarningsAccumulatedDeficit`	$-7.21B	USD	Point-in-time
Total deficit	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.14B	USD	Point-in-time
Total deficit	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.72B	USD	Point-in-time
Total deficit	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.79B	USD	Point-in-time
Total deficit	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.04B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$3.96B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$3.88B	USD	Point-in-time

Income Statement 108 line items

Line Item	Tag	Value	Unit	Period
Contract revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$997.00M	USD	Annual
Contract revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$764.00M	USD	Annual
Contract revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$703.00M	USD	Annual
Management contract revenue	`ManagementContractRevenue`	$289.00M	USD	Annual
Management contract revenue	`ManagementContractRevenue`	$177.00M	USD	Annual
Management contract revenue	`ManagementContractRevenue`	$338.00M	USD	Annual
Total operating revenues	`Revenues`	$1.06B	USD	Annual
Total operating revenues	`Revenues`	$1.39B	USD	Annual
Total operating revenues	`Revenues`	$1.01B	USD	Annual
Depreciation	`Depreciation`	$155.00M	USD	Annual
Depreciation	`Depreciation`	$426.00M	USD	Annual
Depreciation	`Depreciation`	$346.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$1.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	$134.00M	USD	Annual
Amortization of intangibles	`AmortizationOfIntangibleAssets`	-	USD	Annual
Management contract expense	`ManagementContractExpense`	$302.00M	USD	Annual
Management contract expense	`ManagementContractExpense`	$390.00M	USD	Annual
Management contract expense	`ManagementContractExpense`	$174.00M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$77.00M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$95.00M	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$80.00M	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.11B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.46B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$1.72B	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$152.00M	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$4.09B	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$152.00M	USD	Point-in-time
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	$21.00M	USD	Annual
Gain on disposals	`GainLossOnDispositionOfAssets`	$47.00M	USD	Annual
Gain on disposals	`GainLossOnDispositionOfAssets`	-	USD	Annual
Gain on disposals	`GainLossOnDispositionOfAssets`	$15.00M	USD	Annual
Other operating income	`OtherOperatingIncome`	$9.00M	USD	Annual
Other operating income	`OtherOperatingIncome`	$39.00M	USD	Annual
Other operating income	`OtherOperatingIncome`	$54.00M	USD	Annual
Total other operating items	`OtherOperatingIncomeLoss`	$-51.00M	USD	Annual
Total other operating items	`OtherOperatingIncomeLoss`	$39.00M	USD	Annual
Total other operating items	`OtherOperatingIncomeLoss`	$-4.08B	USD	Annual
Operating loss	`OperatingIncomeLoss`	$-295.00M	USD	Annual
Operating loss	`OperatingIncomeLoss`	$-4.48B	USD	Annual
Operating loss	`OperatingIncomeLoss`	$-157.00M	USD	Annual
Interest income	`InvestmentIncomeNet`	$35.00M	USD	Annual
Interest income	`InvestmentIncomeNet`	$1.00M	USD	Annual
Interest income	`InvestmentIncomeNet`	$9.00M	USD	Annual
Interest expense	`InterestExpense`	$421.00M	USD	Annual
Interest expense	`InterestExpense`	$109.00M	USD	Annual
Interest expense	`InterestExpense`	$409.00M	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$6.00M	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Share in results from associated companies (net of tax)	`IncomeLossFromEquityMethodInvestments`	$3.00M	USD	Annual
Share in results from associated companies (net of tax)	`IncomeLossFromEquityMethodInvestments`	$-22.00M	USD	Annual
Share in results from associated companies (net of tax)	`IncomeLossFromEquityMethodInvestments`	-	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	-	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	-	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	$509.00M	USD	Annual
Loss on derivative financial instrument	`GainLossOnDerivativeInstrumentsNetPretax`	$-37.00M	USD	Annual
Loss on derivative financial instrument	`GainLossOnDerivativeInstrumentsNetPretax`	$-3.00M	USD	Annual
Loss on derivative financial instrument	`GainLossOnDerivativeInstrumentsNetPretax`	-	USD	Annual
Foreign exchange loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-11.00M	USD	Annual
Foreign exchange loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-4.00M	USD	Annual
Foreign exchange loss	`ForeignCurrencyTransactionGainLossBeforeTax`	$-23.00M	USD	Annual
Reorganization items, net	`ReorganizationItems`	$310.00M	USD	Annual
Reorganization items, net	`ReorganizationItems`	-	USD	Annual
Reorganization items, net	`ReorganizationItems`	-	USD	Annual
Other financial and non-operating items	`OtherNonoperatingIncomeExpense`	$-45.00M	USD	Annual
Other financial and non-operating items	`OtherNonoperatingIncomeExpense`	$-3.00M	USD	Annual
Other financial and non-operating items	`OtherNonoperatingIncomeExpense`	$-11.00M	USD	Annual
Total financial and other non-operating items, net	`NonoperatingIncomeExpense`	$-430.00M	USD	Annual
Total financial and other non-operating items, net	`NonoperatingIncomeExpense`	$-465.00M	USD	Annual
Total financial and other non-operating items, net	`NonoperatingIncomeExpense`	$38.00M	USD	Annual
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-760.00M	USD	Annual
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-587.00M	USD	Annual
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-4.44B	USD	Annual
Income tax (expense)/benefit	`IncomeTaxExpenseBenefit`	$-40.00M	USD	Annual
Income tax (expense)/benefit	`IncomeTaxExpenseBenefit`	$5.00M	USD	Annual
Income tax (expense)/benefit	`IncomeTaxExpenseBenefit`	$4.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-592.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-720.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-4.45B	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$5.00M	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-502.00M	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-215.00M	USD	Annual
Net loss	`ProfitLoss`	$-4.66B	USD	Annual
Net loss	`ProfitLoss`	$-1.22B	USD	Annual
Net loss	`ProfitLoss`	$-587.00M	USD	Annual
Net loss attributable to the parent	`NetIncomeLoss`	$-4.66B	USD	Annual
Net loss attributable to the parent	`NetIncomeLoss`	$-1.22B	USD	Annual
Net loss attributable to the non-controlling interest	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	$-1.00M	USD	Annual
Net loss attributable to the non-controlling interest	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	$-3.00M	USD	Annual
Net loss attributable to the non-controlling interest	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	-	USD	Annual
Net loss attributable to the redeemable non-controlling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	$-2.00M	USD	Annual
Net loss attributable to the redeemable non-controlling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	$-1.00M	USD	Annual
Net loss attributable to the redeemable non-controlling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	-	USD	Annual
Basic loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-44.29	USD	Annual
Basic loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-7.16	USD	Annual
Basic loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$-5.90	USD	Annual
Diluted loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-5.90	USD	Annual
Diluted loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-44.29	USD	Annual
Diluted loss per share from continuing operations (usd per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-7.16	USD	Annual
Basic loss per share (usd per share)	`EarningsPerShareBasic`	$-46.43	USD	Annual
Basic loss per share (usd per share)	`EarningsPerShareBasic`	$-12.18	USD	Annual
Basic loss per share (usd per share)	`EarningsPerShareBasic`	$-5.85	USD	Annual
Diluted loss per share (usd per share)	`EarningsPerShareDiluted`	$-46.43	USD	Annual
Diluted loss per share (usd per share)	`EarningsPerShareDiluted`	$-12.18	USD	Annual
Diluted loss per share (usd per share)	`EarningsPerShareDiluted`	$-5.85	USD	Annual

Cash Flow Statement 169 line items

Line Item	Tag	Value	Unit	Period
Net cash used in operating activities related to Discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-33.00M	USD	Annual
Net cash used in operating activities related to Discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-18.00M	USD	Annual
Net cash used in operating activities related to Discontinued operations	`CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations`	$-24.00M	USD	Annual
Net loss	`ProfitLoss`	$-4.66B	USD	Annual
Net loss	`ProfitLoss`	$-1.22B	USD	Annual
Net loss	`ProfitLoss`	$-587.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-592.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-720.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$-4.45B	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$5.00M	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-502.00M	USD	Annual
Income/(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-215.00M	USD	Annual
Net operating net loss adjustments related to discontinued operations	`NetOperatingNetLossAdjustmentsRelatedToDiscontinuedOperations`	$191.00M	USD	Annual
Net operating net loss adjustments related to discontinued operations	`NetOperatingNetLossAdjustmentsRelatedToDiscontinuedOperations`	$469.00M	USD	Annual
Net operating net loss adjustments related to discontinued operations	`NetOperatingNetLossAdjustmentsRelatedToDiscontinuedOperations`	$-23.00M	USD	Annual
Depreciation	`Depreciation`	$155.00M	USD	Annual
Depreciation	`Depreciation`	$426.00M	USD	Annual
Depreciation	`Depreciation`	$346.00M	USD	Annual
Amortization of unfavorable and favorable contracts	`AmortizationofFavorableUnfavorableContracts`	$1.00M	USD	Annual
Amortization of unfavorable and favorable contracts	`AmortizationofFavorableUnfavorableContracts`	$134.00M	USD	Annual
Amortization of unfavorable and favorable contracts	`AmortizationofFavorableUnfavorableContracts`	-	USD	Annual
Share of results from associated companies	`IncomeLossFromEquityMethodInvestments`	$3.00M	USD	Annual
Share of results from associated companies	`IncomeLossFromEquityMethodInvestments`	$-22.00M	USD	Annual
Share of results from associated companies	`IncomeLossFromEquityMethodInvestments`	-	USD	Annual
Gain on disposals	`GainLossOnSaleOfOtherAssets`	$15.00M	USD	Annual
Gain on disposals	`GainLossOnSaleOfOtherAssets`	$47.00M	USD	Annual
Gain on disposals	`GainLossOnSaleOfOtherAssets`	-	USD	Annual
Unrealized loss related to derivatives	`UnrealizedGainLossOnDerivatives`	-	USD	Annual
Unrealized loss related to derivatives	`UnrealizedGainLossOnDerivatives`	$-3.00M	USD	Annual
Unrealized loss related to derivatives	`UnrealizedGainLossOnDerivatives`	$-37.00M	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	-	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	-	USD	Annual
Fair value measurement on deconsolidation of VIE	`DeconsolidationGainOrLossAmount`	$509.00M	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$152.00M	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$4.09B	USD	Annual
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	$152.00M	USD	Point-in-time
Loss on impairment of long-lived assets	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	-	USD	Annual
Loss on impairment of intangibles	`GoodwillAndIntangibleAssetImpairment`	$21.00M	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$6.00M	USD	Annual
Loss on impairment of investments	`EquityMethodInvestmentOtherThanTemporaryImpairment`	-	USD	Annual
Deferred tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-61.00M	USD	Annual
Deferred tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-7.00M	USD	Annual
Deferred tax benefit	`DeferredIncomeTaxExpenseBenefit`	$-3.00M	USD	Annual
Unrealized foreign exchange loss	`ForeignCurrencyTransactionGainLossUnrealized`	$-2.00M	USD	Annual
Unrealized foreign exchange loss	`ForeignCurrencyTransactionGainLossUnrealized`	$-19.00M	USD	Annual
Unrealized foreign exchange loss	`ForeignCurrencyTransactionGainLossUnrealized`	$3.00M	USD	Annual
Amortization of discount on debt	`AmortizationOfDebtDiscountPremium`	$84.00M	USD	Annual
Amortization of discount on debt	`AmortizationOfDebtDiscountPremium`	$122.00M	USD	Annual
Amortization of discount on debt	`AmortizationOfDebtDiscountPremium`	$36.00M	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	-	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$144.00M	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$34.00M	USD	Annual
Non-cash reorganization items	`NonoperatingReorganizationItems`	-	USD	Annual
Non-cash reorganization items	`NonoperatingReorganizationItems`	$176.00M	USD	Annual
Non-cash reorganization items	`NonoperatingReorganizationItems`	-	USD	Annual
Payments for long-term maintenance	`PaymentOfLongTermMaintenanceCost`	$64.00M	USD	Annual
Payments for long-term maintenance	`PaymentOfLongTermMaintenanceCost`	$114.00M	USD	Annual
Payments for long-term maintenance	`PaymentOfLongTermMaintenanceCost`	$121.00M	USD	Annual
Repayments made under lease arrangements	`PaymentsForSettlementOfPaidInKindInterest`	-	USD	Annual
Repayments made under lease arrangements	`PaymentsForSettlementOfPaidInKindInterest`	$46.00M	USD	Annual
Repayments made under lease arrangements	`PaymentsForSettlementOfPaidInKindInterest`	-	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-48.00M	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-35.00M	USD	Annual
Trade accounts receivable	`IncreaseDecreaseInAccountsAndOtherReceivables`	$37.00M	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayable`	$17.00M	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayable`	$4.00M	USD	Annual
Trade accounts payable	`IncreaseDecreaseInAccountsPayable`	$-38.00M	USD	Annual
Prepaid expenses/accrued revenue	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$4.00M	USD	Annual
Prepaid expenses/accrued revenue	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$54.00M	USD	Annual
Prepaid expenses/accrued revenue	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$1.00M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$7.00M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$13.00M	USD	Annual
Deferred revenue	`IncreaseDecreaseInDeferredRevenue`	$-5.00M	USD	Annual
Related party receivables	`IncreaseDecreaseInDueFromRelatedParties`	$8.00M	USD	Annual
Related party receivables	`IncreaseDecreaseInDueFromRelatedParties`	$6.00M	USD	Annual
Related party receivables	`IncreaseDecreaseInDueFromRelatedParties`	$103.00M	USD	Annual
Related party payables	`IncreaseDecreaseInDueToRelatedParties`	$-5.00M	USD	Annual
Related party payables	`IncreaseDecreaseInDueToRelatedParties`	$-7.00M	USD	Annual
Related party payables	`IncreaseDecreaseInDueToRelatedParties`	$-30.00M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-35.00M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$13.00M	USD	Annual
Other assets	`IncreaseDecreaseInOtherOperatingAssets`	$19.00M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$9.00M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$75.00M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$65.00M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$8.00M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	-	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$5.00M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-420.00M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-154.00M	USD	Annual
Net cash used in operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-256.00M	USD	Annual
Additions to drilling units and equipment	`PaymentsToAcquireMachineryAndEquipment`	$48.00M	USD	Annual
Additions to drilling units and equipment	`PaymentsToAcquireMachineryAndEquipment`	$27.00M	USD	Annual
Additions to drilling units and equipment	`PaymentsToAcquireMachineryAndEquipment`	$29.00M	USD	Annual
Purchase of call option for non-controlling interest shares	`PaymentsForDerivativeInstrumentInvestingActivities`	-	USD	Annual
Purchase of call option for non-controlling interest shares	`PaymentsForDerivativeInstrumentInvestingActivities`	$11.00M	USD	Annual
Purchase of call option for non-controlling interest shares	`PaymentsForDerivativeInstrumentInvestingActivities`	-	USD	Annual
Investment in associated companies	`PaymentsToAcquireEquityMethodInvestments`	$25.00M	USD	Annual
Investment in associated companies	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Investment in associated companies	`PaymentsToAcquireEquityMethodInvestments`	-	USD	Annual
Loans granted to related party	`OriginationOfNotesReceivableFromRelatedParties`	$8.00M	USD	Annual
Loans granted to related party	`OriginationOfNotesReceivableFromRelatedParties`	-	USD	Annual
Loans granted to related party	`OriginationOfNotesReceivableFromRelatedParties`	-	USD	Annual
Proceeds from disposal of rigs	`ProceedsfromSaleofOilandGasPropertyandEquipmentRigsandEquipment`	$43.00M	USD	Annual
Proceeds from disposal of rigs	`ProceedsfromSaleofOilandGasPropertyandEquipmentRigsandEquipment`	-	USD	Annual
Proceeds from disposal of rigs	`ProceedsfromSaleofOilandGasPropertyandEquipmentRigsandEquipment`	-	USD	Annual
Impact to cash resulting from deconsolidation of VIE	`CashDivestedFromDeconsolidation`	-	USD	Annual
Impact to cash resulting from deconsolidation of VIE	`CashDivestedFromDeconsolidation`	-	USD	Annual
Impact to cash resulting from deconsolidation of VIE	`CashDivestedFromDeconsolidation`	$22.00M	USD	Annual
Net cash provided by investing activities - discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$36.00M	USD	Annual
Net cash provided by investing activities - discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$23.00M	USD	Annual
Net cash provided by investing activities - discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$47.00M	USD	Annual
Net cash provided by/(used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$37.00M	USD	Annual
Net cash provided by/(used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-32.00M	USD	Annual
Net cash provided by/(used in) investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-26.00M	USD	Annual
Repayments of secured credit facilities	`RepaymentsOfSecuredDebt`	-	USD	Annual
Repayments of secured credit facilities	`RepaymentsOfSecuredDebt`	$34.00M	USD	Annual
Repayments of secured credit facilities	`RepaymentsOfSecuredDebt`	$132.00M	USD	Annual
Purchase of redeemable AOD non-controlling interest	`PaymentsToMinorityShareholders`	$31.00M	USD	Annual
Purchase of redeemable AOD non-controlling interest	`PaymentsToMinorityShareholders`	-	USD	Annual
Purchase of redeemable AOD non-controlling interest	`PaymentsToMinorityShareholders`	-	USD	Annual
Net cash used in financing activities - discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	$-333.00M	USD	Annual
Net cash used in financing activities - discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Net cash used in financing activities - discontinued operations	`CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations`	-	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-367.00M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-163.00M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	-	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-19.00M	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$-2.00M	USD	Annual
Effect of exchange rate changes on cash and cash equivalents	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.00M	USD	Annual
Net decrease in cash and cash equivalents, including restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-634.00M	USD	Annual
Net decrease in cash and cash equivalents, including restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-119.00M	USD	Annual
Net decrease in cash and cash equivalents, including restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-646.00M	USD	Annual
Cash and cash equivalents, including restricted cash, at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$1.36B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$723.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$604.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at beginning of the year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$2.00B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - continuing operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$659.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - continuing operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.63B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - continuing operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$535.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - continuing operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.30B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$52.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$69.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$371.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the beginning of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$64.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$1.36B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$723.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$604.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$2.00B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - continuing operations (2)	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$659.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - continuing operations (2)	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.63B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - continuing operations (2)	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$535.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - continuing operations (2)	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.30B	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$52.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$69.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$371.00M	USD	Point-in-time
Cash and cash equivalents, including restricted cash, at the end of year - discontinued operations	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations`	$64.00M	USD	Point-in-time
Interest paid	`InterestPaidNet`	$181.00M	USD	Annual
Interest paid	`InterestPaidNet`	-	USD	Annual
Interest paid	`InterestPaidNet`	$391.00M	USD	Annual
Taxes paid	`IncomeTaxesPaidNet`	$5.00M	USD	Annual
Taxes paid	`IncomeTaxesPaidNet`	$13.00M	USD	Annual
Taxes paid	`IncomeTaxesPaidNet`	$36.00M	USD	Annual
Reorganization items, net paid	`ReorganizationItemsNetPaid`	-	USD	Annual
Reorganization items, net paid	`ReorganizationItemsNetPaid`	-	USD	Annual
Reorganization items, net paid	`ReorganizationItemsNetPaid`	$100.00M	USD	Annual

Stockholders Equity 32 line items

Line Item	Tag	Value	Unit	Period
Beginning balance, shares	`CommonStockSharesIssued`	100.23M	shares	Point-in-time
Beginning balance, shares	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Beginning balance, shares	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.14B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.72B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.79B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.04B	USD	Point-in-time
Net loss from continuing operations	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-4.45B	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-718.00M	USD	Annual
Net loss from continuing operations	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$-592.00M	USD	Annual
Profit /(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$5.00M	USD	Annual
Profit /(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-502.00M	USD	Annual
Profit /(loss) from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-215.00M	USD	Annual
Other comprehensive loss from continuing operations	`OtherComprehensiveIncomeLossNetOfTaxContinuingOperations`	$-2.00M	USD	Annual
Other comprehensive loss from continuing operations	`OtherComprehensiveIncomeLossNetOfTaxContinuingOperations`	$-1.00M	USD	Annual
Other comprehensive loss from discontinued operations	`OtherComprehensiveIncomeLossNetOfTaxDiscontinuingOperations`	$-5.00M	USD	Annual
Other comprehensive loss from discontinued operations	`OtherComprehensiveIncomeLossNetOfTaxDiscontinuingOperations`	$-11.00M	USD	Annual
Other comprehensive loss from discontinued operations	`OtherComprehensiveIncomeLossNetOfTaxDiscontinuingOperations`	$11.00M	USD	Annual
Fair Value adjustment AOD Redeemable NCI	`RevaluationOfRedeemableNoncontrollingInterest`	$25.00M	USD	Annual
Fair Value adjustment AOD Redeemable NCI	`RevaluationOfRedeemableNoncontrollingInterest`	$-21.00M	USD	Annual
Share buyback of Heirs Holding shares in Seadrill Nigeria Operations	`MinorityInterestDecreaseFromRedemptions`	$11.00M	USD	Annual
Deconsolidation of VIE	`DeconsolidationOfVariableInterestEntity`	$137.00M	USD	Annual
Share-based compensation charge	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$9.00M	USD	Annual
Share-based compensation charge	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.00M	USD	Annual
Cash settlement for cancellation of share scheme	`AdjustmentsToPaidInCapitalSettlementForCancellationOfShareScheme`	$1.00M	USD	Annual
Ending balance, shares	`CommonStockSharesIssued`	100.23M	shares	Point-in-time
Ending balance, shares	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Ending balance, shares	`CommonStockSharesIssued`	100.38M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.14B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$-3.72B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$1.79B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.04B	USD	Point-in-time

Comprehensive Income 27 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-4.66B	USD	Annual
Net loss	`ProfitLoss`	$-1.22B	USD	Annual
Net loss	`ProfitLoss`	$-587.00M	USD	Annual
Actuarial loss relating to pensions	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$1.00M	USD	Annual
Actuarial loss relating to pensions	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	Annual
Actuarial loss relating to pensions	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	-	USD	Annual
Change in fair value of debt component of Archer convertible bond	`OtherComprehensiveIncomeDeconsolidationOfSubsidiaries`	$2.00M	USD	Annual
Change in fair value of debt component of Archer convertible bond	`OtherComprehensiveIncomeDeconsolidationOfSubsidiaries`	$3.00M	USD	Annual
Change in fair value of debt component of Archer convertible bond	`OtherComprehensiveIncomeDeconsolidationOfSubsidiaries`	$4.00M	USD	Annual
Share of other comprehensive loss from associated companies	`OtherComprehensiveIncomeOtherNetOfTax`	$-8.00M	USD	Annual
Share of other comprehensive loss from associated companies	`OtherComprehensiveIncomeOtherNetOfTax`	$9.00M	USD	Annual
Share of other comprehensive loss from associated companies	`OtherComprehensiveIncomeOtherNetOfTax`	$-15.00M	USD	Annual
Other comprehensive (loss)/income	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-13.00M	USD	Annual
Other comprehensive (loss)/income	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$11.00M	USD	Annual
Other comprehensive (loss)/income	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-6.00M	USD	Annual
Total comprehensive loss for the period	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-4.68B	USD	Annual
Total comprehensive loss for the period	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-576.00M	USD	Annual
Total comprehensive loss for the period	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-1.23B	USD	Annual
Comprehensive loss attributable to the shareholders	`ComprehensiveIncomeNetOfTax`	$-4.67B	USD	Annual
Comprehensive loss attributable to the shareholders	`ComprehensiveIncomeNetOfTax`	$-1.23B	USD	Annual
Comprehensive loss attributable to the shareholders	`ComprehensiveIncomeNetOfTax`	$-576.00M	USD	Annual
Comprehensive loss attributable to the non-controlling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-3.00M	USD	Annual
Comprehensive loss attributable to the non-controlling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Comprehensive loss attributable to the non-controlling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-1.00M	USD	Annual
Comprehensive loss attributable to the redeemable non-controlling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	-	USD	Annual
Comprehensive loss attributable to the redeemable non-controlling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	$-1.00M	USD	Annual
Comprehensive loss attributable to the redeemable non-controlling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	$-2.00M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.