v2.4.0.8

Debt (Details)			0 Months Ended			0 Months Ended			1 Months Ended	12 Months Ended		12 Months Ended				12 Months Ended		0 Months Ended		12 Months Ended							12 Months Ended			12 Months Ended							12 Months Ended									12 Months Ended			12 Months Ended			12 Months Ended					0 Months Ended					1 Months Ended	12 Months Ended				12 Months Ended					0 Months Ended	1 Months Ended						12 Months Ended			12 Months Ended								12 Months Ended																																																					12 Months Ended		12 Months Ended		12 Months Ended						12 Months Ended								12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Feb. 15, 2013 5% Notes due February 2013 USD ($)	Dec. 31, 2013 5% Notes due February 2013	Dec. 31, 2012 5% Notes due February 2013 USD ($)	Mar. 15, 2013 5.25% Senior Notes due March 2013 USD ($)	Dec. 31, 2013 5.25% Senior Notes due March 2013	Dec. 31, 2012 5.25% Senior Notes due March 2013 USD ($)	Jun. 30, 2013 TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2013 TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2012 TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2013 4.95% Senior Notes due November 2015 USD ($)	Dec. 31, 2012 4.95% Senior Notes due November 2015 USD ($)	Sep. 30, 2010 4.95% Senior Notes due November 2015 USD ($)	Feb. 21, 2011 Aker Revolving Credit Facility USD ($)	Dec. 31, 2012 Aker Term Loan Facility USD ($)	Feb. 21, 2011 Aker Term Loan Facility USD ($)	Mar. 06, 2013 Callable Bonds due February 2016 USD ($)	Mar. 06, 2013 Callable Bonds due February 2016 NOK	Dec. 31, 2013 Callable Bonds due February 2016 USD ($)	Dec. 31, 2012 Callable Bonds due February 2016 USD ($)	Mar. 06, 2013 FRN Callable Bonds USD ($)	Mar. 06, 2013 FRN Callable Bonds NOK	Dec. 31, 2013 11% Callable Bonds	Mar. 06, 2013 11% Callable Bonds USD ($)	Mar. 06, 2013 11% Callable Bonds NOK	Dec. 31, 2013 5.05% Senior Notes due December 2016 USD ($)	Dec. 31, 2012 5.05% Senior Notes due December 2016 USD ($)	Dec. 31, 2011 5.05% Senior Notes due December 2016 USD ($)	Dec. 31, 2013 2.5% Senior Notes due October 2017 USD ($)	Dec. 31, 2012 2.5% Senior Notes due October 2017 USD ($)	Sep. 30, 2012 2.5% Senior Notes due October 2017 USD ($)	Dec. 31, 2013 ADDCL Credit Facilities due December 2017 USD ($)	Dec. 31, 2012 ADDCL Credit Facilities due December 2017 USD ($)	Dec. 31, 2013 ADDCL Credit Facilities due December 2017 Ultra Deepwater Floater Discoverer Luanda USD ($)	Dec. 31, 2012 ADDCL Credit Facilities due December 2017 Ultra Deepwater Floater Discoverer Luanda USD ($)	Dec. 31, 2013 Eksportfinans Loans due January 2018 USD ($)	Dec. 31, 2012 Eksportfinans Loans due January 2018 USD ($)	Dec. 31, 2013 Eksportfinans Loan A USD ($)	Dec. 31, 2013 Eksportfinans Loan B USD ($)	Dec. 31, 2013 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2012 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2013 7.375% Senior Notes due April 2018 USD ($)	Dec. 31, 2012 7.375% Senior Notes due April 2018 USD ($)	Mar. 31, 2002 7.375% Senior Notes due April 2018 USD ($)	Dec. 31, 2013 6.50% Senior Notes due November 2020 USD ($)	Dec. 31, 2012 6.50% Senior Notes due November 2020 USD ($)	Sep. 30, 2010 6.50% Senior Notes due November 2020 USD ($)	Dec. 31, 2013 6.375% Senior Notes due December 2021 USD ($)	Dec. 31, 2012 6.375% Senior Notes due December 2021 USD ($)	Dec. 31, 2011 6.375% Senior Notes due December 2021 USD ($)	Dec. 31, 2013 3.8% Senior Notes due October 2022 USD ($)	Dec. 31, 2012 3.8% Senior Notes due October 2022 USD ($)	Sep. 30, 2012 3.8% Senior Notes due October 2022 USD ($)	Dec. 31, 2013 7.45% Notes due April 2027 USD ($)	Dec. 31, 2012 7.45% Notes due April 2027 USD ($)	May 31, 2012 TPDI Notes USD ($)	Dec. 31, 2013 8% Debentures due April 2027 USD ($)	Dec. 31, 2012 8% Debentures due April 2027 USD ($)	Dec. 31, 2013 7% Notes due June 2028 USD ($)	Dec. 31, 2012 7% Notes due June 2028 USD ($)	Aug. 31, 2009 Capital lease contract due August 2029 USD ($)	Dec. 31, 2013 Capital lease contract due August 2029 USD ($)	Dec. 31, 2012 Capital lease contract due August 2029 USD ($)	Dec. 31, 2013 7.5% Notes due April 2031 USD ($)	Dec. 31, 2012 7.5% Notes due April 2031 USD ($)	Dec. 31, 2012 1.50% Series B and 1.50% Series C Convertible Senior Notes USD ($)	Dec. 31, 2011 1.50% Series B and 1.50% Series C Convertible Senior Notes USD ($)	Dec. 31, 2013 1.50% Series B and 1.50% Series C Convertible Senior Notes Maximum USD ($)	Dec. 31, 2013 1.50% Series B Convertible Senior Notes due December 2037	Dec. 31, 2007 1.50% Series B Convertible Senior Notes due December 2037 USD ($)	Dec. 14, 2012 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Feb. 28, 2013 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Dec. 31, 2013 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Dec. 31, 2012 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Dec. 31, 2007 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Dec. 31, 2013 6.80% Senior Notes due March 2038 USD ($)	Dec. 31, 2012 6.80% Senior Notes due March 2038 USD ($)	Dec. 31, 2013 7.35% Senior Notes due December 2041 USD ($)	Dec. 31, 2012 7.35% Senior Notes due December 2041 USD ($)	Dec. 31, 2011 7.35% Senior Notes due December 2041 USD ($)	Dec. 31, 2013 Five Year Revolving Credit Facility USD ($)	Dec. 31, 2013 Five Year Revolving Credit Facility Minimum	Dec. 31, 2013 Five Year Revolving Credit Facility Maximum	Dec. 31, 2013 Five Year Revolving Credit Facility Base Rate	Dec. 31, 2013 Five Year Revolving Credit Facility Adjusted LIBOR	Dec. 31, 2013 Three Year Secured Revolving Credit Facility USD ($)	Dec. 31, 2013 Three Year Secured Revolving Credit Facility Deepwater Champion, Discoverer Americas and Discoverer Inspiration USD ($)	Dec. 31, 2012 Three Year Secured Revolving Credit Facility Deepwater Champion, Discoverer Americas and Discoverer Inspiration USD ($)	Dec. 31, 2013 Three Year Secured Revolving Credit Facility Minimum	Dec. 31, 2013 Three Year Secured Revolving Credit Facility Maximum	Dec. 31, 2013 Three Year Secured Revolving Credit Facility Base Rate	Dec. 31, 2013 Three Year Secured Revolving Credit Facility Adjusted LIBOR	Dec. 31, 2013 Transocean Ltd. and Subsidiaries USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 5% Notes due February 2013 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 5.25% Senior Notes due March 2013 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 4.95% Senior Notes due November 2015 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 4.95% Senior Notes due November 2015 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries Callable Bonds due February 2016 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 5.05% Senior Notes due December 2016 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 5.05% Senior Notes due December 2016 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 2.5% Senior Notes due October 2017 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 2.5% Senior Notes due October 2017 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries Eksportfinans Loans due January 2018 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries Eksportfinans Loans due January 2018 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 7.375% Senior Notes due April 2018 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 7.375% Senior Notes due April 2018 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 6.50% Senior Notes due November 2020 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 6.50% Senior Notes due November 2020 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 6.375% Senior Notes due December 2021 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 6.375% Senior Notes due December 2021 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 3.8% Senior Notes due October 2022 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 3.8% Senior Notes due October 2022 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 7.45% Notes due April 2027 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 7.45% Notes due April 2027 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 8% Debentures due April 2027 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 8% Debentures due April 2027 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 7% Notes due June 2028 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 7% Notes due June 2028 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries Capital lease contract due August 2029 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries Capital lease contract due August 2029 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 7.5% Notes due April 2031 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 7.5% Notes due April 2031 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 1.50% Series C Convertible Senior Notes due December 2037 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 6.80% Senior Notes due March 2038 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 6.80% Senior Notes due March 2038 USD ($)	Dec. 31, 2013 Transocean Ltd. and Subsidiaries 7.35% Senior Notes due December 2041 USD ($)	Dec. 31, 2012 Transocean Ltd. and Subsidiaries 7.35% Senior Notes due December 2041 USD ($)	Dec. 31, 2013 Consolidated variable interest entities USD ($)	Dec. 31, 2012 Consolidated variable interest entities USD ($)	Dec. 31, 2013 Consolidated variable interest entities ADDCL Credit Facilities due December 2017 USD ($)	Dec. 31, 2012 Consolidated variable interest entities ADDCL Credit Facilities due December 2017 USD ($)	Dec. 31, 2013 TPDI TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2012 TPDI TPDI Credit Facilities due March 2015 USD ($)	Dec. 31, 2013 TPDI TPDI Credit Facilities Senior Term Loan Due March 2015 USD ($)	Dec. 31, 2013 TPDI TPDI Credit Facilities Junior Term Loan Due March 2015 USD ($)	Dec. 31, 2013 TPDI TPDI Credit Facilities Revolving Credit Facility Due March 2015 USD ($)	Dec. 31, 2012 TPDI Uncommitted Credit Facility Established by Subsidiary USD ($)	Dec. 31, 2013 ADDCL ADDCL Credit Facilities Tranche A Due December 2017 USD ($)	Dec. 31, 2013 ADDCL ADDCL Credit Facilities Tranche C Due December 2017 USD ($)	Dec. 31, 2013 ADDCL ADDCL Secondary Loan Facility Due December 2015 USD ($)	Dec. 31, 2012 ADDCL ADDCL Secondary Loan Facility Due December 2015 USD ($)	Dec. 31, 2013 ADDCL ADDCL Secondary Loan Facility Due December 2015 Minimum	Dec. 31, 2013 ADDCL ADDCL Secondary Loan Facility Due December 2015 Maximum	Dec. 31, 2013 Wholly-owned subsidiaries 5% Notes due February 2013 item	Dec. 31, 2013 Wholly-owned subsidiaries 7% Notes due June 2028 USD ($) item	Dec. 31, 2013 Transocean Inc. 5.25% Senior Notes due March 2013	Dec. 31, 2007 Transocean Inc. 5.25% Senior Notes due March 2013 USD ($)	Dec. 31, 2013 Transocean Inc. 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2007 Transocean Inc. 6.00% Senior Notes due March 2018 USD ($)	Dec. 31, 2013 Transocean Inc. 7.45% Notes due April 2027 USD ($)	Apr. 30, 1997 Transocean Inc. 7.45% Notes due April 2027 USD ($)	Dec. 31, 2013 Transocean Inc. 8% Debentures due April 2027 USD ($)	Apr. 30, 1997 Transocean Inc. 8% Debentures due April 2027 USD ($)	Dec. 31, 2013 Transocean Inc. 7.5% Notes due April 2031 USD ($)	Apr. 30, 2001 Transocean Inc. 7.5% Notes due April 2031 USD ($)	Dec. 31, 2013 Transocean Inc. 6.80% Senior Notes due March 2038 USD ($)	Dec. 31, 2007 Transocean Inc. 6.80% Senior Notes due March 2038 USD ($)
Long-term debt by current and noncurrent
Total debt	$ 10,702,000,000	$ 12,459,000,000			$ 250,000,000			$ 502,000,000			$ 403,000,000	$ 1,113,000,000	$ 1,118,000,000								$ 282,000,000						$ 999,000,000	$ 999,000,000		$ 748,000,000	$ 748,000,000		$ 163,000,000	$ 191,000,000			$ 591,000,000	$ 797,000,000			$ 998,000,000	$ 998,000,000	$ 247,000,000	$ 247,000,000		$ 900,000,000	$ 899,000,000		$ 1,199,000,000	$ 1,199,000,000		$ 745,000,000	$ 745,000,000		$ 97,000,000	$ 97,000,000		$ 57,000,000	$ 57,000,000	$ 311,000,000	$ 311,000,000		$ 637,000,000	$ 657,000,000	$ 598,000,000	$ 598,000,000									$ 62,000,000		$ 999,000,000	$ 999,000,000	$ 300,000,000	$ 300,000,000														$ 10,539,000,000	$ 12,268,000,000	$ 250,000,000	$ 502,000,000	$ 403,000,000	$ 1,113,000,000	$ 1,118,000,000	$ 282,000,000	$ 999,000,000	$ 999,000,000	$ 748,000,000	$ 748,000,000	$ 591,000,000	$ 797,000,000	$ 998,000,000	$ 998,000,000	$ 247,000,000	$ 247,000,000	$ 900,000,000	$ 899,000,000	$ 1,199,000,000	$ 1,199,000,000	$ 745,000,000	$ 745,000,000	$ 97,000,000	$ 97,000,000	$ 57,000,000	$ 57,000,000	$ 311,000,000	$ 311,000,000	$ 637,000,000	$ 657,000,000	$ 598,000,000	$ 598,000,000	$ 62,000,000	$ 999,000,000	$ 999,000,000	$ 300,000,000	$ 300,000,000	$ 163,000,000	$ 191,000,000	$ 163,000,000	$ 191,000,000
Debt due within one year	323,000,000	1,367,000,000			250,000,000			502,000,000			70,000,000										282,000,000												163,000,000	28,000,000			140,000,000	153,000,000																									20,000,000	20,000,000											62,000,000																			160,000,000	1,339,000,000	250,000,000	502,000,000	70,000,000			282,000,000					140,000,000	153,000,000																	20,000,000	20,000,000			62,000,000					163,000,000	28,000,000	163,000,000	28,000,000
Long-term debt	10,379,000,000	11,092,000,000																																																																																												10,379,000,000	10,929,000,000																																							163,000,000
Debt instrument interest rate stated percentage				5.00%			5.25%					4.95%												11.00%			5.05%			2.50%							4.15%				6.00%		7.375%			6.50%			6.375%			3.80%			7.45%			8.00%		7.00%					7.50%					1.50%				1.50%			6.80%		7.35%
Percentage ownership interest in Transocean Inc. by Transocean Ltd.																																																																																														100.00%
Scheduled monthly payments under capital lease obligation																																																															6,000,000
Purchase obligation to acquire asset under capital lease																																																															1
Credit facility term																																																																																		5 years					3 years
Borrowing capacity, maximum															500,000,000																																																																			2,000,000,000					900,000,000																																																		1,265,000,000				75,000,000		215,000,000	399,000,000	90,000,000
Weighted-average interest rate (as a percent)																																																																																																																																															0.89%		3.30%
Debt instrument face value														1,100,000,000			400,000,000												1,000,000,000			750,000,000													247,000,000			900,000,000			1,200,000,000			750,000,000																	2,200,000,000					2,200,000,000					300,000,000																																																										1,000,000,000	190,000,000												500,000,000		1,000,000,000		100,000,000		200,000,000		600,000,000		1,000,000,000
Accrued and unpaid interest																																																									16,000,000
Basis of variable interest rate																																																																																					Base Rate	LIBOR						Base Rate	LIBOR																																																		LIBOR		LIBOR
Spread on variable rate basis (as a percent)																																																																																						1.625%				0.875%	2.50%		2.00%																																																		0.725%				3.125%	5.125%
Percentage reduction to the calculated variable rate																																																																																					1.00%							1.00%
Commitment fee percentage at period end																																																																																		0.275%	0.125%	0.325%			0.375%			0.125%	0.50%
Maximum debt to tangible capitalization ratio																																																																																		0.6					0.6
Credit facility available borrowing capacity																																																																																		2,000,000,000					900,000,000
Letters of credit issued and outstanding																																																																																		20,000,000																																																												60,000,000
Redemption price of debt instrument (as a percent)												100.00%															100.00%			100.00%																100.00%			100.00%			100.00%																											100.00%																																																																						100.00%	100.00%	100.00%		100.00%								100.00%
Aggregate principal amount outstanding	10,698,000,000											1,100,000,000										164,000,000	940,000,000		98,000,000	560,000,000	1,000,000,000			750,000,000									280,000,000	314,000,000			247,000,000			900,000,000			1,200,000,000			750,000,000																											300,000,000															10,535,000,000																																							163,000,000																	300,000,000			1,000,000,000		100,000,000		57,000,000		600,000,000		1,000,000,000
Aggregate commitment of subsidiary in secured term loan										595,000,000
Credit facility amount outstanding																																																																																		0					0																																																								135,000,000		80,000,000
Debt due to a subsidiary, eliminated in consolidation																																																																																																																																																399,000,000	52,000,000
Number of wholly-owned subsidiaries which are obligors to debt instrument																																																																																																																																																					2	2
Aggregate principal amount repaid			250,000,000			500,000,000			735,000,000							333,000,000																																									148,000,000															1,700,000,000	62,000,000
Gain (loss) on retirement of debt										(1,000,000)						2,000,000				(1,000,000)
Payment made to a subsidiary out of repayment of debt, eliminated in consolidation									367,000,000
Restricted investments used as security for debt instruments																																																																																																																																										23,000,000							20,000,000	19,000,000
NOK exchange rate																			5.73
Aggregate cash payment made for debt repurchased																		273,000,000	1,567,000,000
Percentage of total commitment under ADDCL secondary bank credit agreement provided by subsidiary																																																																																																																																																	65.00%
Fixed interest rate on restricted cash investments (as a percent)																																					4.15%
Implicit interest rate (as a percent)																																																															7.80%
Additions to property and equipment upon entry into capital lease																																																														716,000,000
Asset capitalized under capital leases																																																														716,000,000
Aggregate carrying amount assets pledged																																			748,000,000	786,000,000																																																				2,200,000,000	2,300,000,000
Carrying amounts of Convertible Senior Notes
Interest expense																																																																			84,000,000	162,000,000	1,000,000
Carrying amount of equity component																																																																										10,000,000
Aggregate cash payments to redeem debt																																																																								$ 1,700,000,000	$ 62,000,000

X

- Definition

Adjustment for accrued and unpaid interest included in the fair value adjustment of the noncontrolling interest at the time of non-cash settlement of the exchange transaction of the put option agreement.

+ References

No definition available.

+ Details

Name:	rig_AccruedAndUnpaidInterestAtTimeOfSettlementOfPutOption
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The aggregate commitment of a subsidiary in the secured term loan which was established to finance the construction of and is secured by Dhirubhai Deepwater KG1 and Dhirubhai Deepwater KG2.

+ References

No definition available.

+ Details

Name:	rig_AggregateCommitmentOfSubsidiaryInSecuredTermLoan
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents non-cash additions of property and equipment resulting from direct financing under a capital lease arrangement.

+ References

No definition available.

+ Details

Name:	rig_CapitalExpendituresNonCash
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount due monthly under capital lease obligation.

+ References

No definition available.

+ Details

Name:	rig_CapitalLeaseObligationMonthlyPayment
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of the lessee's purchase obligation to acquire the leased asset after the term of the lease period expires.

+ References

No definition available.

+ Details

Name:	rig_CapitalLeaseObligationPurchaseObligationToAcquireLeasedAsset
Namespace Prefix:	rig_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	rig_CarryingAmountOfLiabilityComponentOfConvertibleSeniorNotesAbstract
Namespace Prefix:	rig_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount outstanding under Credit Facilities or Notes payable which is due to one of the Company's subsidiaries and is eliminated in consolidation.

+ References

No definition available.

+ Details

Name:	rig_DebtDueToSubsidiaryAndEliminatedInConsolidation
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the maximum debt to tangible capitalization ratio.

+ References

No definition available.

+ Details

Name:	rig_DebtInstrumentCovenantDebtToTangibleCapitalizationRatio
Namespace Prefix:	rig_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of wholly-owned subsidiaries which are obligors to debt instrument.

+ References

No definition available.

+ Details

Name:	rig_DebtInstrumentNumberOfWhollyOwnedSubsidiariesAsObligorsToDebt
Namespace Prefix:	rig_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage reduction to the calculated variable rate.

+ References

No definition available.

+ Details

Name:	rig_DebtInstrumentReductionToCalculatedVariableRatePercentage
Namespace Prefix:	rig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the implicit interest rate under capital lease contract.

+ References

No definition available.

+ Details

Name:	rig_ImplicitInterestRate
Namespace Prefix:	rig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the exchange rate at the end of the period used to convert the Norwegian kroner currency into one U.S. dollar.

+ References

No definition available.

+ Details

Name:	rig_NOKExchangeRate
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the amount of payment made to one of the entity's subsidiaries out of repayment of credit facilities and is eliminated in consolidation.

+ References

No definition available.

+ Details

Name:	rig_PaymentToSubsidiaryOutOfRepaymentOfDebtAndEliminatedInConsolidation
Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the fixed interest rate on restricted cash investments.

+ References

No definition available.

+ Details

Name:	rig_RestrictedCashAndCashEquivalentsFixedInterestRate
Namespace Prefix:	rig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase during the period in capital lease obligations due to entering into new capital leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_CapitalLeaseObligationsIncurred
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-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://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentCollateralAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031897-161870

+ Details

Name:	us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
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://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

Name:	us-gaap_ExtinguishmentOfDebtAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 8

-Article 5

+ Details

Name:	us-gaap_InterestExpenseDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The effective interest rate at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-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 3: http://www.xbrl.org/2003/role/presentationRef

-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



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-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=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Article 5

+ Details

Name:	us-gaap_LongTermDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-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_LongTermDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

Name:	us-gaap_RepaymentsOfConvertibleDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

No definition available.

+ Details

Name:	us-gaap_RestrictedInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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