XML 113 R74.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Debt (Details) - USD ($) $ in Millions | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2019 | Feb. 01, 2019 | Dec. 31, 2018 | Oct. 25, 2018 | Jul. 31, 2018 | Oct. 17, 2017 | May 05, 2017
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 9,361 |  | $ 10,094 |  |  |  |
Debt due within one year | 581 |  | 386 |  |  |  |
Long-term debt | 8,780 |  | 9,708 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 9,261 |  | 9,978 |  |  |  |
Debt due within one year | 568 |  | 373 |  |  |  |
Long-term debt | $ 8,693 |  | 9,605 |  |  |  |
Transocean Inc |  |  |  |  |  |  |
Carrying amount |  |  |  |  |  |  |
Percentage ownership interest in Transocean Inc. by Transocean Ltd. | 100.00% |  |  |  |  |  |
6.50% Senior Notes due November 2020 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 206 |  | 286 |  |  |  |
Debt due within one year | 206 |  |  |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 206 |  | 288 |  |  |  |
Debt due within one year | $ 206 |  |  |  |  |  |
Debt instrument interest rate stated percentage | 6.50% |  |  |  |  |  |
6.375% Senior Notes due December 2021 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 222 |  | 328 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 221 |  | 327 |  |  |  |
Debt instrument interest rate stated percentage | 6.375% |  |  |  |  |  |
5.52% Senior Notes due May 2022 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 200 |  | 282 |  |  |  |
Debt due within one year | 88 |  | 83 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 198 |  | 280 |  |  |  |
Debt due within one year | $ 87 |  | 81 |  |  |  |
Debt instrument interest rate stated percentage | 5.52% |  |  |  |  |  | 5.52%
3.80% Senior Notes due October 2022 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 190 |  | 411 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 189 |  | 408 |  |  |  |
Debt instrument interest rate stated percentage | 3.80% |  |  |  |  |  |
0.50% Exchangeable Bonds due January 2023 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 863 |  | 863 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 862 |  | 862 |  |  |  |
Debt instrument interest rate stated percentage | 0.50% |  |  |  |  |  |
5.375% Senior Secured Notes due May 2023 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 525 |  |  |  |  |  |
Debt due within one year | 16 |  |  |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 518 |  |  |  |  |  |
Debt due within one year | $ 14 |  |  |  |  |  |
Debt instrument interest rate stated percentage | 5.375% |  |  |  |  |  |
9.00% Senior Notes due July 2023 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 714 |  | 1,250 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 701 |  | 1,221 |  |  |  |
Debt instrument interest rate stated percentage | 9.00% |  |  |  |  |  |
5.875% Senior Secured Notes due January 2024 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 667 |  | 750 |  |  |  |
Debt due within one year | 83 |  | 83 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 656 |  | 735 |  |  |  |
Debt due within one year | $ 79 |  | 79 |  |  |  |
Debt instrument interest rate stated percentage | 5.875% |  |  |  | 5.875% |  |
7.75% Senior Secured Notes due October 2024 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 420 |  | 480 |  |  |  |
Debt due within one year | 60 |  | 60 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 412 |  | 469 |  |  |  |
Debt due within one year | $ 58 |  | 58 |  |  |  |
Debt instrument interest rate stated percentage | 7.75% |  |  |  |  |  |
6.25% Senior Notes due December 2024 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 437 |  | 500 |  |  |  |
Debt due within one year | 62 |  | 62 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 430 |  | 489 |  |  |  |
Debt due within one year | $ 60 |  | 60 |  |  |  |
Debt instrument interest rate stated percentage | 6.25% |  |  |  |  |  |
6.125% Senior Secured Notes due August 2025 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 534 |  | 600 |  |  |  |
Debt due within one year | 66 |  | 66 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | 525 |  | 588 |  |  |  |
Debt due within one year | $ 64 |  | 63 |  |  |  |
Debt instrument interest rate stated percentage | 6.125% |  |  |  | 6.125% |  |
7.25% Senior Notes due November 2025 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 750 |  | 750 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 737 |  | 736 |  |  |  |
Debt instrument interest rate stated percentage | 7.25% |  |  | 7.25% |  |  |
7.50% Senior Notes due January 2026 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 750 |  | 750 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 743 |  | 742 |  |  |  |
Debt instrument interest rate stated percentage | 7.50% |  |  |  |  |  |
6.875% Senior Secured Notes due February 2027 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 550 |  |  |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 541 |  |  |  |  |  |
Debt instrument interest rate stated percentage | 6.875% | 6.875% |  |  |  |  |
7.45% Notes due April 2027 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 88 |  | 88 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 86 |  | 86 |  |  |  |
Debt instrument interest rate stated percentage | 7.45% |  |  |  |  |  |
8.00% Debentures due April 2027 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 57 |  | 57 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 57 |  | 57 |  |  |  |
Debt instrument interest rate stated percentage | 8.00% |  |  |  |  |  |
7.00% Notes due June 2028 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 300 |  | 300 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 306 |  | 306 |  |  |  |
Debt instrument interest rate stated percentage | 7.00% |  |  |  |  |  |
Finance lease contract due August 2029 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt |  |  | 511 |  |  |  |
Debt due within one year |  |  | 32 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt |  |  | 511 |  |  |  |
Debt due within one year |  |  | 32 |  |  |  |
7.50% Notes due April 2031 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 588 |  | 588 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 585 |  | 585 |  |  |  |
Debt instrument interest rate stated percentage | 7.50% |  |  |  |  | 7.50% |
6.80% Senior Notes due March 2038 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 1,000 |  | 1,000 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 991 |  | 991 |  |  |  |
Debt instrument interest rate stated percentage | 6.80% |  |  |  |  |  |
7.35% Senior Notes due December 2041 |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |
Total principal amount of debt | $ 300 |  | 300 |  |  |  |
Carrying amount |  |  |  |  |  |  |
Total debt | $ 297 |  | $ 297 |  |  |  |
Debt instrument interest rate stated percentage | 7.35% |  |  |  |  |  |

X
- Definition Current portion before unamortized (discount) premium and debt issuance costs, of long-term debt. + References No definition available. + Details
Name: | rig_LongTermDebtGrossCurrent
Namespace Prefix: | rig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Non current portion before unamortized (discount) premium and debt issuance costs, of long-term debt. + References No definition available. + Details
Name: | rig_LongTermDebtGrossNonCurrent
Namespace Prefix: | rig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of short-term and long-term debt and lease obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LongTermDebtOtherDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=rig_TransoceanIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue6.50PercentNovember2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue6.375PercentDecember2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue5.52PercentMay2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue3.8PercentOctober2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorUnsecuredExchangeableBonds0.5PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorSecuredNotesDue5.375PercentMay2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue9PercentJuly2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue5.875PercentJanuary2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue7.75PercentOctober2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue6.25PercentDecember2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorSecuredNote6.125PercentDueAugust2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue7.25PercentNovember2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue7.50PercentJanuary2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorSecuredNote6.875PercentDueFebruary2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_NotesDue7.45PercentApril2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_DebenturesDue8PercentApril2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_NotesDue7PercentJune2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_CapitalLeaseContractDueAugust2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_NotesDue7.5PercentApril2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue6.80PercentMarch2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rig_SeniorNotesDue7.35PercentDecember2041Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |