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Subsequent Events (Unaudited) (Details) - Ultra-deepwater Drillship Contracts [Member] - Subsequent Event [Member] - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
May. 31, 2016 | May. 10, 2016
Subsequent Event [Line Items] |  |
Subsequent Event, Date | May 10, 2016 |
Gain (Loss) on Contract Termination | $ (540) |
Period, Contingent Consideration | 12 years |
Unrecorded Unconditional Purchase Obligation, Change of Amount as Result of Variable Components |  | $ 800
Maximum [Member] |  |
Subsequent Event [Line Items] |  |
Bonds Issued, Contract Termination | $ 200 |
Contingent Payments, Contract Termination |  | $ 75

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- Definition Amount of potential contingent payments that could be made in connection with a contract termination. + References No definition available. + Details
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- Definition Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Definition Date the event occurred after the balance sheet date but before financial statements are issues or available to be issued, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662 + Details
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