XML 108 R96.htm IDEA: XBRL DOCUMENT
v3.20.4

Fresh Start Accounting - Reorganization Adjustments, Long-Term Debt (Details) - USD ($) $ in Millions | Jul. 02, 2018 | Jul. 01, 2018
--- | --- | ---
Total reinstated senior secured credit facilities |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | $ 5,426
Reinstated Senior undersecured or impaired external debt |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | 5,266
Recognition of adequate protection payments |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | 186
Lender consent fee |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | (26)
Issuance of senior secured notes |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | 880
Capitalized pre-issuance interest for senior secured notes for 8% paid-in kind |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | 10
Debt issuance cost in related to the issuance of the senior secured notes |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | (9)
Discount on senior secured notes for the pre-issuance interest paid upon emergence (4% cash interest of $5 million and 8% paid-in kind interest of $10 million) |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | (15)
Reorganization Adjustments |  |
Fresh-Start Adjustment [Line Items] |  |
Net increase in long-term debt |  | $ 6,292
Secured Debt | Senior secured notes |  |
Fresh-Start Adjustment [Line Items] |  |
Stated interest rate, cash portion (as a percent) | 4.00% | 4.00%
$5 million applicable to 4% cash interest |  | $ 5
Stated interest rate, paid-in-kind portion (as a percent) | 8.00% | 8.00%
$10 million applicable to 8% paid-in-kind interest |  | $ 10

X
- Definition Debt Instrument, Covenant 1 + References No definition available. + Details
Name: | sdrl_DebtInstrumentCovenant1
Namespace Prefix: | sdrl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument, Covenant 2 + References No definition available. + Details
Name: | sdrl_DebtInstrumentCovenant2
Namespace Prefix: | sdrl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument, Interest Rate, Stated Percentage, Cash Portion + References No definition available. + Details
Name: | sdrl_DebtInstrumentInterestRateStatedPercentageCashPortion
Namespace Prefix: | sdrl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Interest Rate, Stated Percentage, Payment-In-Kind Portion + References No definition available. + Details
Name: | sdrl_DebtInstrumentInterestRateStatedPercentagePaymentInKindPortion
Namespace Prefix: | sdrl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total fresh-start adjustment to long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120604989&loc=SL2890621-112765 + Details
Name: | us-gaap_FreshStartAdjustmentIncreaseDecreaseLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FreshStartAdjustmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_TotalReinstatedSeniorUnsecuredCreditFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_ReinstatedSeniorUndersecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_RecognitionofAdequateProtectionPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_LenderConsentFeeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_IssuanceofNewSecuredNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_CapitalizedPreIssuanceInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_DebtIssuanceCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_DiscountonDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis=sdrl_ReorganizationAdjustmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=sdrl_SecuredNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |