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Unaudited Condensed Consolidated Financial Statements Unaudited Condensed Consolidated Financial Statements (Narrative) (Details) - Sales Revenue, Net [Member] $ in Millions | 6 Months Ended
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Jun. 30, 2016 USD ($)
Revenue from External Customer [Line Items] |
Gain (Loss) on Contract Termination | $ 205.0
ENSCO DS-9 [Member] |
Revenue from External Customer [Line Items] |
Gain (Loss) on Contract Termination | 185.0
ENSCO 8503 [Member] |
Revenue from External Customer [Line Items] |
Gain (Loss) on Contract Termination | $ 20.0

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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=66902209&loc=d3e3602-108585 + Details
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