XML 49 R31.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Business (Details) | Jul. 31, 2016 subsidiary shares | Sep. 30, 2016 item SFr / shares | Dec. 31, 2015 SFr / shares | Oct. 29, 2015 SFr / shares
--- | --- | --- | --- | ---
Approved par value of common stock (in Swiss francs per share) | SFr / shares |  |  |  | SFr 0.10
Par value of common stock (in Swiss francs per share) | SFr / shares |  | SFr 0.10 | SFr 15.00 | SFr 15.00
Continuing operations |  |  |  |
Number of mobile offshore drilling units |  | 58 |  |
Number of Ultra-Deepwater Floaters |  | 29 |  |
Number of Harsh Environment Floaters |  | 7 |  |
Number of Deepwater Floaters |  | 4 |  |
Number of Midwater Floaters (in drilling units) |  | 8 |  |
Number of High-Specification Jackups (in drilling units) |  | 10 |  |
Number of Ultra-Deepwater drillships under construction (in drilling units) |  | 5 |  |
Number of High-Specification Jackup under construction (in drilling units) |  | 5 |  |
Merger Agreement | Transocean Partners |  |  |  |
Number of subsidiaries party to agreement | subsidiary | 2 |  |  |
Number of subsidiaries merging | subsidiary | 1 |  |  |
Number of securities to be issued for each unit | shares | 1.1427 |  |  |
Total number of securities to be issued in merger | shares | 22,700,000 |  |  |

X
- Definition Face amount or stated value per share of common stock that has been approved by the shareholders but is not yet effective. + References No definition available. + Details
Name: | rig_CommonStockParOrStatedValueApprovedPerShare
Namespace Prefix: | rig_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Deepwater Floaters. Deepwater Floaters are generally those other semisubmersible rigs and drillships capable of drilling in water depths between 4,500 feet and 7,500 feet. + References No definition available. + Details
Name: | rig_NumberOfDeepwaterFloaters
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Harsh Environment Floaters. Harsh Environment Floaters are capable of drilling in harsh environments in water depths between 1,500 feet and 10,000 feet and have greater displacement, which offers larger variable load capacity, more usable deck space and better motion characteristics. + References No definition available. + Details
Name: | rig_NumberOfHarshEnvironmentFloaters
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of High-Specification Jackups. High-Specification Jackups are harsh environment and high-performance jackups. Jackups are self-elevating drilling platforms that have legs that can be lowered to the ocean floor to establish a foundation to support the drilling platform. These units are generally suited for water depths of 400 feet or less. + References No definition available. + Details
Name: | rig_NumberOfHighSpecificationJackups
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of High-Specification Jackups under construction. + References No definition available. + Details
Name: | rig_NumberOfHighSpecificationJackupsUnderConstruction
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Midwater Floaters. Midwater Floaters are non-high-specification semisubmersibles with a water depth capacity of less than 4,500 feet. + References No definition available. + Details
Name: | rig_NumberOfMidwaterFloaters
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of mobile offshore drilling units we own, had partial ownership interests in or operated at the measurement date. + References No definition available. + Details
Name: | rig_NumberOfMobileOffshoreDrillingUnits
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total number of the entity's securities to be issued for the merging company's units. + References No definition available. + Details
Name: | rig_NumberOfSecuritiesIssued
Namespace Prefix: | rig_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of the entity's securities into which each existing unit of the merging company will be converted. + References No definition available. + Details
Name: | rig_NumberOfSecuritiesIssuedForEachUnit
Namespace Prefix: | rig_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of subsidiaries party to the agreement. + References No definition available. + Details
Name: | rig_NumberOfSubsidiaries
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of subsidiaries merging with an entity. + References No definition available. + Details
Name: | rig_NumberOfSubsidiariesToMerge
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Ultra-Deepwater drillships under construction. + References No definition available. + Details
Name: | rig_NumberOfUltraDeepwaterDrillshipsUnderConstruction
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Ultra-Deepwater Floaters. Ultra-Deepwater Floaters are equipped with high pressure mud pumps and are capable of drilling units in water depths of 7,500 feet or greater. + References No definition available. + Details
Name: | rig_NumberOfUltraDeepwaterFloaters
Namespace Prefix: | rig_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face amount or stated value per share of common stock. + 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 210.5-02.29) -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 30 -Article 5 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementOperatingActivitiesSegmentAxis=us-gaap_SegmentContinuingOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=rig_MergerAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rig_TransoceanPartnersLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |