Income Taxes - Income Tax Data from Continuing Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (loss) components:
United States	$ 199.4	$ (124.3)	$ 143.9
International	309.7	209.5	270.5
Income from continuing operations before income tax	509.1	85.2	414.4
Current income tax expense (benefit):
United States – federal	21.1	9.9	9.4
United States – state and local	2.6	(1.5)	0.5
International	50.2	50.8	49.1
Total current income tax expense	73.9	59.2	59.0
Deferred income tax expense (benefit) components:
United States – federal	96.9	(36.6)	10.1
United States – state and local	15.5	(4.8)	1.5
International	3.3	(2.5)	19.3
Total deferred income tax expense (benefit)	115.7	(43.9)	30.9
Income tax expense	$ 189.6	$ 15.3	$ 89.9
Effective income tax rate	37.20%	18.00%	21.70%