Components of Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current provision:
Federal	$ 267.1	$ 397.7	$ 322.9
State	67.5	63.8	41.7
Foreign	263.0	210.5	213.2
Current Income Tax Expense (Benefit), Total	597.6	672.0	577.8
Deferred provision (benefit):
Federal	22.6	(173.8)	31.5
State	1.3	2.3	4.8
Foreign	(6.4)	(2.4)	(5.4)
Deferred taxes	17.5	(173.9)	30.9
Income taxes	$ 615.1	$ 498.1	$ 608.7

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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