Accumulated Other Comprehensive Income (Loss) - Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 9,257.2	$ 9,071.2	$ 9,189.5
Other comprehensive income (loss), net of tax	25.8	(217.3)	(56.6)
Divestiture of foreign subsidiaries			(1.5)
Balance at end of period	9,846.7	9,257.2	9,071.2
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(251.7)	(41.6)	14.2
Before tax income (loss)	7.4	(174.8)	(58.3)
Income tax effect	16.7	(35.3)	4.0
Other comprehensive income (loss), net of tax	24.1	(210.1)	(54.3)
Divestiture of foreign subsidiaries			(1.5)
Balance at end of period	(227.6)	(251.7)	(41.6)
Foreign Currency Translation Adjustments, Net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(282.8)	(29.9)	74.6
Before tax income (loss)	23.0	(237.1)	(119.9)
Income tax effect	11.8	(15.8)	16.9
Other comprehensive income (loss), net of tax	34.8	(252.9)	(103.0)
Divestiture of foreign subsidiaries			(1.5)
Balance at end of period	(248.0)	(282.8)	(29.9)
Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	16.0	0.0	0.0
Before tax income (loss)	(5.1)	21.3	0.0
Income tax effect	1.3	(5.3)	0.0
Other comprehensive income (loss), net of tax	(3.8)	16.0	0.0
Divestiture of foreign subsidiaries			0.0
Balance at end of period	12.2	16.0	0.0
Pension and Other Postretirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	15.1	(11.7)	(60.4)
Before tax income (loss)	(10.5)	41.0	61.6
Income tax effect	3.6	(14.2)	(12.9)
Other comprehensive income (loss), net of tax	(6.9)	26.8	48.7
Divestiture of foreign subsidiaries			0.0
Balance at end of period	$ 8.2	$ 15.1	$ (11.7)