Components of Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current provision:
Federal	$ 410.0	$ 182.5	$ 352.3
State	85.9	44.9	96.8
Foreign	243.5	132.6	191.4
Current Income Tax Expense (Benefit), Total	739.4	360.0	640.5
Deferred (benefit) provision:
Federal	(179.5)	(11.2)	40.7
State	(30.4)	1.7	(4.3)
Foreign	(3.0)	9.0	34.4
Deferred taxes	(212.9)	(0.5)	70.8
Income taxes	$ 526.5	$ 359.5	$ 711.3