Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	[1]	$ 437.0	$ 188.0	$ 463.0
Other comprehensive (loss) income before tax:
Change in cumulative translation adjustments		(86.0)	97.0	2.0
Net change in unrealized components of defined benefit plans		37.0	8.0	(35.0)
Other comprehensive (loss) income, before tax		(49.0)	104.0	(33.0)
Tax effect allocated to other comprehensive (loss) income		(11.0)	(2.0)	7.0
Other comprehensive (loss) income, net of tax		(60.0)	103.0	(26.0)
Comprehensive income	[1]	377.0	291.0	437.0
Less: Comprehensive income (loss) attributable to non-controlling interest		2.0	2.0	1.0
Comprehensive income attributable to controlling interest		$ 375.0	$ 289.0	$ 436.0

[1] See Note 14 for further details – includes tax effects where applicable.