Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 292.9	$ 278.2	$ 252.8
State and Local	39.5	40.1	70.2
Non-U.S.	102.9	93.6	102.1
Total current	435.3	411.9	425.1
Deferred:
Federal	(125.8)	14.7	0.9
State and Local	(20.3)	7.6	4.9
Non-U.S.	(7.0)	(4.2)	24.1
Total deferred	(153.1)	18.1	29.9
Total provision for income taxes	$ 282.2	$ 430.0	$ 455.0