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v2.4.1.9

Shareholders' Equity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 18, 2015 | Mar. 19, 2014 | Mar. 31, 2015 item | Mar. 31, 2014 | Feb. 15, 2015 installment | Dec. 31, 2014 | May 31, 2014 installment | May 31, 2013 installment
Distribution of qualifying additional paid-in capital |  |  |  |  |  |  |  |
Cash distribution proposed in the form of additional paid-in capital (in dollars per share) |  |  |  |  | $ 0.60 rig_CashDistributionPerShareProposedAsAdditionalPaidInCapital |  |  |
Cash distribution approved in the form of additional paid-in capital (in dollars per share) |  |  |  |  |  |  | $ 3.00 rig_CashDistributionPerShareApprovedAsAdditionalPaidInCapital | $ 2.24 rig_CashDistributionPerShareApprovedAsAdditionalPaidInCapital
Number of quarterly installments (in installments) |  |  |  |  | 4 rig_NumberOfQuarterlyInstallments |  | 4 rig_NumberOfQuarterlyInstallments | 4 rig_NumberOfQuarterlyInstallments
Amount of installment (in dollars per share) |  |  |  |  | $ 0.15 rig_AmountOfInstallment |  | $ 0.75 rig_AmountOfInstallment | $ 0.56 rig_AmountOfInstallment
Installment of dividend paid | $ 272 us-gaap_PaymentsOfCapitalDistribution | $ 202 us-gaap_PaymentsOfCapitalDistribution | $ 272 us-gaap_PaymentsOfCapitalDistribution | $ 202 us-gaap_PaymentsOfCapitalDistribution |  |  |  |
Unpaid distribution payable |  |  |  |  |  | $ 272 us-gaap_DividendsPayableCurrent |  |
Shares held by subsidiary |  |  |  |  |  |  |  |
Number of subsidiaries to whom shares were issued |  |  | 1 rig_NumberOfSubsidiariesToWhomSharesWereIssued |  |  |  |  |
Number of shares held by subsidiary |  |  | 7.6 rig_CommonStockHeldBySubsidiaryShares |  |  | 8.7 rig_CommonStockHeldBySubsidiaryShares |  |

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- Definition Represents the amount of each installment of the shareholder approved distribution. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Cash distribution of qualifying additional paid-in capital approved at annual general meeting. + References No definition available. + Details
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Namespace Prefix: | rig_
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- Definition Cash distribution of qualifying additional paid-in capital proposed for annual general meeting. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition The number of shares held by subsidiary, which were issued for the purpose of granting the shares to senior employees as part of an employee stock option plan approved by the Entity's Board of Directors. + References No definition available. + Details
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- Details
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- Definition Number of quarterly installments to pay the proposed dividend. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Represents the number of subsidiaries to whom shares were issued for future use to satisfy our obligations to deliver shares in connection with awards granted under our incentive plans or other rights to acquire our shares. + References No definition available. + Details
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- Details
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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within 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 FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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