Provision for Income Taxes, Classified by Timing and Location of Payment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
U.S. federal	$ 1,046.6	$ 1,072.3	$ 1,124.8
U.S. state	121.3	139.5	148.4
Outside the U.S.	1,550.2	816.0	1,431.7
Current tax provision	2,718.1	2,027.8	2,704.9
U.S. federal	(122.1)	6.8	(81.8)
U.S. state	14.1	(3.9)	(6.2)
Outside the U.S.	(430.6)	(4.3)	(2.7)
Deferred tax provision	(538.6)	(1.4)	(90.7)
Provision for income taxes	$ 2,179.5	$ 2,026.4	$ 2,614.2