XML 48 R35.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Earnings Per Share (Reconciliation Of Net Income Attributable To Ensco Shares) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Earnings Per Share [Abstract] |  |
Income (Loss) from Continuing Operations Attributable to Parent | $ 324.9 us-gaap_IncomeLossFromContinuingOperations | $ 294.6 us-gaap_IncomeLossFromContinuingOperations
Net income allocated to non-vested share awards | (3.7)us-gaap_OtherPreferredStockDividendsAndAdjustments | (3.0)us-gaap_OtherPreferredStockDividendsAndAdjustments
Income (Loss) from Continuing Operations Attributable to Parent, Available to Common Stockholders | $ 321.2 esv_IncomeLossfromContinuingOperationsAttributabletoParentAvailabletoCommonStockholders | $ 291.6 esv_IncomeLossfromContinuingOperationsAttributabletoParentAvailabletoCommonStockholders

X
- Definition Income (Loss) from Continuing Operations Attributable to Parent, Available to Common Stockholders + References No definition available. + Details
Name: | esv_IncomeLossfromContinuingOperationsAttributabletoParentAvailabletoCommonStockholders
Namespace Prefix: | esv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4613673-111683 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_IncomeLossFromContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other preferred stock dividends and adjustments, not otherwise defined in the taxonomy, that are necessary to adjust net income to obtain net income applicable to common stockholders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section Q + Details
Name: | us-gaap_OtherPreferredStockDividendsAndAdjustments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration