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Guarantee Of Registered Securities Guarantee Of Registered Securities (Condensed Consolidating Statements of Comprehensive Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
NET INCOME (LOSS) | $ 293.8 | $ 432.9 | $ 884.4 | $ (440.0)
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
Net change in fair value of derivatives | (14.8) | (12.7) | (23.5) | (2.8)
Reclassification of net (gains) losses on derivative instruments from other comprehensive income into net income | 5.8 | (1.4) | 15.9 | (3.3)
Other | 2.9 | 3.7 | 4.2 | 4.2
NET OTHER COMPREHENSIVE (LOSS) INCOME | (6.1) | (10.4) | (3.4) | (1.9)
COMPREHENSIVE INCOME | 287.7 | 422.5 | 881.0 | (441.9)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS | (1.8) | (3.5) | (7.4) | (10.8)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | 285.9 | 419.0 | 873.6 | (452.7)
Ensco Plc [Member] |  |  |  |
NET INCOME (LOSS) | 292.0 | 429.4 | 877.0 | (450.8)
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
COMPREHENSIVE INCOME | 292.0 | 429.4 | 877.0 | (450.8)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | 292.0 | 429.4 | 877.0 | (450.8)
ENSCO International Inc. [Member] |  |  |  |
NET INCOME (LOSS) | 98.7 | 52.0 | 144.1 | (1,382.8)
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
Net change in fair value of derivatives | (14.8) | (12.7) | (23.5) | (2.8)
Reclassification of net (gains) losses on derivative instruments from other comprehensive income into net income | 5.8 | (1.4) | 15.9 | (3.3)
NET OTHER COMPREHENSIVE (LOSS) INCOME | (9.0) | (14.1) | (7.6) | (6.1)
COMPREHENSIVE INCOME | 89.7 | 37.9 | 136.5 | (1,388.9)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | 89.7 | 37.9 | 136.5 | (1,388.9)
Pride International, Inc. [Member] |  |  |  |
NET INCOME (LOSS) | (1.1) | 53.8 | 103.1 | (1,541.9)
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
COMPREHENSIVE INCOME | (1.1) | 53.8 | 103.1 | (1,541.9)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | (1.1) | 53.8 | 103.1 | (1,541.9)
Other Non-Guarantor Subsidiaries Of Ensco [Member] |  |  |  |
NET INCOME (LOSS) | 368.4 | 493.4 | 1,156.4 | (247.0)
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
Other | 2.9 | 3.7 | 4.2 | 4.2
NET OTHER COMPREHENSIVE (LOSS) INCOME | 2.9 | 3.7 | 4.2 | 4.2
COMPREHENSIVE INCOME | 371.3 | 497.1 | 1,160.6 | (242.8)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS | (1.8) | (3.5) | (7.4) | (10.8)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | 369.5 | 493.6 | 1,153.2 | (253.6)
Consolidating Adjustments [Member] |  |  |  |
NET INCOME (LOSS) | (464.2) | (595.7) | (1,396.2) | 3,182.5
OTHER COMPREHENSIVE INCOME (LOSS), NET: |  |  |  |
COMPREHENSIVE INCOME | (464.2) | (595.7) | (1,396.2) | 3,182.5
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSCO | $ (464.2) | $ (595.7) | $ (1,396.2) | $ 3,182.5

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