Income Taxes - Component of Income Taxes Expenses (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Currently payable (refundable):
U.S. federal and state	$ 9.1	$ 0.9	$ 8.0
Non-U.S.	(1.2)	42.6	78.7
Total	7.9	43.5	86.7
Deferred income taxes (benefit):
U.S. federal and state	(57.9)	34.5	28.6
Non-U.S.	(41.0)	26.8	54.6
Total	(98.9)	61.3	83.2
Provision for income taxes (benefit)	$ (91.0)	$ 104.8	$ 169.9