v2.3.0.15
Guarantee Of Registered Securities (Condensed Consolidating Statements Of Income) (Details) (USD $)
In Millions
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Guarantor Obligations [Line Items]    
OPERATING REVENUES$ 915.6$ 428.3$ 1,841.3$ 1,288.3
Contract drilling (exclusive of depreciation)477.5194.1955.4582.5
Depreciation135.855.6278.8159.2
General and administrative40.820.6118.363.2
OPERATING INCOME261.5158.0488.8483.4
OTHER INCOME (EXPENSE), NET(13.5)2.7(29.4)18.6
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES248.0160.7459.4502.0
INCOME TAX (PROVISION) (BENEFIT)41.926.784.284.1
DISCONTINUED OPERATIONS (1.9) 33.7
NET INCOME206.1132.1375.2451.6
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS(1.6)(1.6)(4.2)(5.0)
NET INCOME ATTRIBUTABLE TO ENSCO204.5130.5371.0446.6
Ensco Plc [Member]
    
Guarantor Obligations [Line Items]    
Contract drilling (exclusive of depreciation)1.41.03.01.6
Depreciation0.10.10.30.2
General and administrative11.613.336.440.4
OPERATING INCOME(13.1)(14.4)(39.7)(42.2)
EQUITY EARNINGS IN AFFILIATES, NET OF TAX194.9131.2387.4446.6
OTHER INCOME (EXPENSE), NET22.714.223.342.6
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES204.5131.0371.0447.0
INCOME TAX (PROVISION) (BENEFIT) 0.5 0.4
NET INCOME204.5130.5371.0446.6
NET INCOME ATTRIBUTABLE TO ENSCO204.5130.5371.0446.6
ENSCO International Inc. [Member]
    
Guarantor Obligations [Line Items]    
Depreciation0.70.31.20.8
OPERATING INCOME(0.7)(0.3)(1.2)(0.8)
EQUITY EARNINGS IN AFFILIATES, NET OF TAX93.649.5214.5216.3
OTHER INCOME (EXPENSE), NET3.34.22.51.8
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES96.253.4215.8217.3
INCOME TAX (PROVISION) (BENEFIT)13.525.232.846.5
DISCONTINUED OPERATIONS 5.5 (14.3)
NET INCOME82.733.7183.0156.5
NET INCOME ATTRIBUTABLE TO ENSCO82.733.7183.0156.5
Pride International, Inc. [Member]
    
Guarantor Obligations [Line Items]    
EQUITY EARNINGS IN AFFILIATES, NET OF TAX58.3 76.7 
OTHER INCOME (EXPENSE), NET(11.0) (14.6) 
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES47.3 62.1 
INCOME TAX (PROVISION) (BENEFIT)1.2   
NET INCOME46.1 62.1 
NET INCOME ATTRIBUTABLE TO ENSCO46.1 62.1 
Other Non-Guarantor Subsidiaries Of Ensco [Member]
    
Guarantor Obligations [Line Items]    
OPERATING REVENUES916.1429.01,842.61,289.6
Contract drilling (exclusive of depreciation)476.6193.8953.7582.2
Depreciation135.055.2277.3158.2
General and administrative29.27.381.922.8
OPERATING INCOME275.3172.7529.7526.4
OTHER INCOME (EXPENSE), NET(28.5)(15.7)(40.6)(25.8)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES246.8157.0489.1500.6
INCOME TAX (PROVISION) (BENEFIT)27.21.051.437.2
DISCONTINUED OPERATIONS (7.4) 48.0
NET INCOME219.6148.6437.7511.4
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS(1.6)(1.6)(4.2)(5.0)
NET INCOME ATTRIBUTABLE TO ENSCO218.0147.0433.5506.4
Consolidating Adjustments [Member]
    
Guarantor Obligations [Line Items]    
OPERATING REVENUES(0.5)(0.7)(1.3)(1.3)
Contract drilling (exclusive of depreciation)(0.5)(0.7)(1.3)(1.3)
EQUITY EARNINGS IN AFFILIATES, NET OF TAX(346.8)(180.7)(678.6)(662.9)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES(346.8)(180.7)(678.6)(662.9)
NET INCOME(346.8)(180.7)(678.6)(662.9)
NET INCOME ATTRIBUTABLE TO ENSCO$ (346.8)$ (180.7)$ (678.6)$ (662.9)