v2.4.0.8
Earnings Per Share (Reconciliation Of Net Income Attributable To Ensco Shares) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Earnings Per Share [Abstract]        
Net income attributable to Ensco $ (1,172.7) $ 360.9 $ (880.2) $ 678.0
Net income allocated to non-vested share awards (2.1) (3.9) (3.9) (7.2)
Net income attributable to Ensco shares $ (1,174.8) $ 357.0 $ (884.1) $ 670.8