Accumulated Other Comprehensive Income, Gains And Losses On Derivative Instruments, Other

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

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-Glossary Comprehensive Income

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-Topic 220

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-Glossary Net Income

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Guarantee Of Registered Securities (Condensed Consolidating Statements Of Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Guarantor Obligations [Line Items]
NET INCOME	$ (3,448.5)us-gaap_ProfitLoss	$ 432.9us-gaap_ProfitLoss	$ (1,169.6)us-gaap_ProfitLoss	$ 296.7us-gaap_ProfitLoss	$ 364.0us-gaap_ProfitLoss	$ 381.4us-gaap_ProfitLoss	$ 362.6us-gaap_ProfitLoss	$ 319.9us-gaap_ProfitLoss	$ (3,888.5)us-gaap_ProfitLoss	$ 1,427.9us-gaap_ProfitLoss	$ 1,176.7us-gaap_ProfitLoss
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									(11.7)	(5.8)	8.7
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									(0.9)	2.0	0
Other									6.3	1.9	2.8
NET OTHER COMPREHENSIVE INCOME (LOSS)									(6.3)	(1.9)	11.5
COMPREHENSIVE INCOME									(3,894.8)	1,426.0	1,188.2
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									(14.1)	(9.7)	(7.0)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									(3,908.9)us-gaap_ComprehensiveIncomeNetOfTax	1,416.3us-gaap_ComprehensiveIncomeNetOfTax	1,181.2us-gaap_ComprehensiveIncomeNetOfTax
Ensco Plc [Member]
Guarantor Obligations [Line Items]
NET INCOME									(3,902.6)	1,418.2	1,169.7
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									0	0	0
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									0	0	0
Other									0	0	0
NET OTHER COMPREHENSIVE INCOME (LOSS)									0	0	0
COMPREHENSIVE INCOME									(3,902.6)	1,418.2	1,169.7
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									0	0	0
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									(3,902.6)	1,418.2	1,169.7
ENSCO International Inc. [Member]
Guarantor Obligations [Line Items]
NET INCOME									(3,657.4)	259.8	256.2
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									(11.7)	(5.8)	6.3
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									(0.9)	2.0	0.2
Other									0	0	0
NET OTHER COMPREHENSIVE INCOME (LOSS)									(12.6)	(3.8)	6.5
COMPREHENSIVE INCOME									(3,670.0)	256.0	262.7
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									0	0	0
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									(3,670.0)	256.0	262.7
Pride International Inc. [Member]
Guarantor Obligations [Line Items]
NET INCOME									(3,799.0)	83.7	189.2
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									0	0	0
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									0	0	0
Other									0	0	0
NET OTHER COMPREHENSIVE INCOME (LOSS)									0	0	0
COMPREHENSIVE INCOME									(3,799.0)	83.7	189.2
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									0	0	0
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									(3,799.0)	83.7	189.2
Other Non-Guarantor Subsidiaries Of Ensco [Member]
Guarantor Obligations [Line Items]
NET INCOME									(3,710.9)	1,684.1	1,419.6
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									0	0	2.4
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									0	0	(0.2)
Other									6.3	1.9	2.8
NET OTHER COMPREHENSIVE INCOME (LOSS)									6.3	1.9	5.0
COMPREHENSIVE INCOME									(3,704.6)	1,686.0	1,424.6
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									(14.1)	(9.7)	(7.0)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									(3,718.7)	1,676.3	1,417.6
Consolidating Adjustments [Member]
Guarantor Obligations [Line Items]
NET INCOME									11,181.4	(2,017.9)	(1,858.0)
OTHER COMPREHENSIVE INCOME (LOSS), NET
Net change in fair value of derivatives									0	0	0
Reclassification of gains and losses on derivative instruments from other comprehensive (income) loss into net income									0	0	0
Other									0	0	0
NET OTHER COMPREHENSIVE INCOME (LOSS)									0	0	0
COMPREHENSIVE INCOME									11,181.4	(2,017.9)	(1,858.0)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS									0	0	0
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO									$ 11,181.4	$ (2,017.9)	$ (1,858.0)