Schedule Of U.S. Federal, State And Foreign Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
U.S. federal	$ 151.7	$ 132.0	$ 92.7
State, Current	24.7	27.7	16.3
Foreign, Current	15.9	19.8	16.6
Current income tax expense (benefit)	192.3	179.5	125.6
U.S. federal, Deferred	12.6	11.4	48.7
State, Deferred	(1.7)	1.6	(3.3)
Foreign, Deferred	0.2	0.2	14.0
Deferred income tax expense (benefit)	11.1	13.2	59.4
Recorded tax expense	$ 203.4	$ 192.7	$ 185.0