Accumulated Other Comprehensive Income (Loss) - Other Comprehensive (Loss) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 9,189.5	$ 1,869.9	$ 1,676.0
Other comprehensive income (loss), net of tax	(56.6)	268.8	(0.8)
Divestiture of foreign subsidiaries	(1.5)
Balance at end of period	9,071.2	9,189.5	1,869.9
Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period		(1.0)	0.0
Balance at end of period			(1.0)
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	14.2	(256.0)	(247.0)
Before tax income (loss)	(58.3)	255.8	3.0
Income tax effect	4.0	14.4	(3.8)
Other comprehensive income (loss), net of tax	(54.3)	270.2	(0.8)
Divestiture of foreign subsidiaries	(1.5)
Balance at end of period	(41.6)	14.2	(256.0)
Accumulated Other Comprehensive Income (Loss) | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			(8.2)
Foreign Currency Translation Adjustments, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	74.6	(193.6)	(190.6)
Before tax income (loss)	(119.9)	253.1	4.1
Income tax effect	16.9	15.1	(5.6)
Other comprehensive income (loss), net of tax	(103.0)	268.2	(1.5)
Divestiture of foreign subsidiaries	(1.5)
Balance at end of period	(29.9)	74.6	(193.6)
Foreign Currency Translation Adjustments, Net | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			(1.5)
Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	0.0	(10.9)	(11.4)
Before tax income (loss)	0.0	14.2	8.2
Income tax effect	0.0	(3.3)	(1.0)
Other comprehensive income (loss), net of tax	0.0	10.9	7.2
Divestiture of foreign subsidiaries	0.0
Balance at end of period	0.0	0.0	(10.9)
Unrealized Gains (Losses) on Cash Flow Hedges | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			(6.7)
Pension and Postretirement Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(60.4)	(51.5)	(45.0)
Before tax income (loss)	61.6	(11.5)	(9.3)
Income tax effect	(12.9)	2.6	2.8
Other comprehensive income (loss), net of tax	48.7	(8.9)	(6.5)
Divestiture of foreign subsidiaries	0.0
Balance at end of period	$ (11.7)	$ (60.4)	(51.5)
Pension and Postretirement Benefit Plans | Cumulative Effect, Period of Adoption, Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			$ 0.0