Components of Income Before Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 1,373.7	$ 1,122.9	$ 2,201.1
Foreign	1,004.9	535.0	898.1
Total Income Before Income Taxes	$ 2,378.6	$ 1,657.9	$ 3,099.2