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	$ 264.4	$ 122.0	$ 252.6
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	(50.1)	13.8	5.4
Unrealized gain (loss) on derivatives	36.6	(30.0)	(33.1)
Unrealized gain (loss) on pension and other benefit plan obligations	37.0	(25.3)	(46.1)
Other comprehensive income (loss), before tax	23.5	(41.5)	(73.8)
Income tax expense (benefit) related to items of other comprehensive income	13.9	(11.0)	(17.4)
Other comprehensive income (loss), net of tax	9.6	(30.5)	(56.4)
Comprehensive income	274.0	91.5	196.2
Less: Comprehensive (loss) income attributable to noncontrolling interests	(0.3)	(0.8)	6.6
Comprehensive income attributable to controlling interests	$ 274.3	$ 92.3	$ 189.6