v2.4.0.8

Income Taxes (Details 2) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended								6 Months Ended
	May 31, 2013 NOK subsidiary	Jun. 30, 2014 USD ($) subsidiary jurisdiction	Jun. 30, 2014 NOK subsidiary jurisdiction	Jun. 30, 2014 Minimum	Jun. 30, 2014 Maximum	Jun. 30, 2014 Norway Tax Assessments Prior to 2012 USD ($) advisor subsidiary	Jun. 30, 2014 Norway Tax Assessments Prior to 2012 NOK advisor subsidiary	Jun. 26, 2014 Norway Tax Assessments Prior to 2012 USD ($)	Jun. 26, 2014 Norway Tax Assessments Prior to 2012 NOK	Jun. 30, 2014 Norway Tax Assessments 2012 USD ($) advisor subsidiary	Jun. 30, 2014 Norway Tax Assessments 2012 NOK	Jun. 30, 2014 2010 and 2011 federal income tax returns USD ($)	Dec. 31, 2005 Brazil Tax Assessments 2000 Through 2004 USD ($)	Dec. 31, 2005 Brazil Tax Assessments 2000 Through 2004 BRL	May 19, 2014 Brazil Tax Assessments 2009 And 2010 USD ($)	May 19, 2014 Brazil Tax Assessments 2009 And 2010 BRL
Income Tax Examination
Range of tax returns are subject to examination				3 years	6 years
Number of jurisdictions with extensions beyond statute of limitations		2	2
Maximum number of years agreed to extensions beyond the statute of limitations		19 years	19 years
Net adjustments of additional taxes, excluding interest and penalties, related to assessments on 2010 and 2011 U.S. federal income tax returns												$ 290
Norway tax assessment due to migration of subsidiary, including interest						114	684
Norway tax assessment due to 2001 dividend payment, including interest						69	412
Norway tax assessment due to foreign exchange deductions and dividend withholding taxes, including interest						7	43
Guarantee amount for tax assessment related to the migration of subsidiary						117	699
Court ruling on tax assessment amount owed by affiliate								69	412
Number of subsidiaries against which notification of criminal charges are issued						2	2			2	2
Number of employees of former external advisors indicted						2	2			2	2
Financial claim issued by the Norwegian authorities supplementing the criminal indictments										300	1,800
Financial claim dropped by the Norwegian authorities	1,800
Number of subsidiaries against which notification of criminal charges are dropped	1
Criminal penalties to be assessed by court in addition to civil tax penalties		38	230
Number of subsidiaries against which criminal penalties in addition to civil tax penalties will be assessed		3	3
Brazil tax assessment for income tax returns													$ 315	694	$ 55	121
Percentage of penalty and interest to be assessed by Brazil tax authorities													75.00%	75.00%	75.00%	75.00%

X

- Definition

Represents the amount of guarantee provided by the entity with respect to the tax assessment related to the migration of a subsidiary.

+ References

No definition available.

+ Details

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X

- Definition

Represents the amount of criminal penalties to be assessed by the court in addition to civil tax penalties.

+ References

No definition available.

+ Details

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X

- Definition

The estimated loss resulting from the income tax examination that has been accrued net of any adjustments as of the balance sheet date, excluding interest and penalties by the Brazilian taxing authorities.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Represents the amount of liability owed by subsidiary from court ruling.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

The rate of penalty to be assessed by Brazilian tax authorities if entity's efforts to overturn tax assessment are unsuccessful.

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	num:percentItemType
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X

- Definition

Represents the financial claim dropped by the tax authorities against one of the entity's subsidiaries.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

Represents the financial claim issued by the Norwegian authorities supplementing the criminal indictments.

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Maximum number of years the enterprise has agreed to extensions beyond the statute of limitations in four major jurisdictions.

+ References

No definition available.

+ Details

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- Definition

Represents the number of former external tax advisors, who issued indictments against the entity with respect to disclosures in the tax returns.

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	xbrli:integerItemType
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X

- Definition

Represents the number of jurisdictions with extensions beyond the statute of limitations.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Represents the number of subsidiaries of the entity against which criminal indictments charges are dropped.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of subsidiaries of the entity against which criminal indictments charges are filed.

+ References

No definition available.

+ Details

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X

- Definition

Represents the number of subsidiaries against which criminal penalties in addition to civil tax penalties will be assessed by the court.

+ References

No definition available.

+ Details

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- Definition

Range of period that the tax returns in the major jurisdictions in which the enterprise operates are generally subject to examination.

+ References

No definition available.

+ Details

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Namespace Prefix:	rig_
Data Type:	xbrli:durationItemType
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- Definition

Tax assessments by Norway on entity's actions involving dividend payment.

+ References

No definition available.

+ Details

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- Definition

Tax assessments by Norway on entity's actions involving certain foreign exchange deductions and dividend withholding taxes.

+ References

No definition available.

+ Details

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X

- Definition

Tax assessments by Norway on entity's actions involving the migration of a subsidiary that was previously subject to tax in Norway.

+ References

No definition available.

+ Details

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- Details

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- Definition

Estimated amount of loss resulting from an adverse tax position.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (d)(3)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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