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Components Of Earnings (Loss) From Operations Before Income Taxes (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule Of Income Before Income Tax [Line Items]      
U.S. $ 66.7 $ (710.1) $ (274.5)
Foreign 142.3 70.1 37.1
Earnings (loss) before income taxes $ 209.0 $ (640.0) $ (237.4)