Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 9,480.4	$ 8,844.0	$ 9,257.2	$ 9,071.2
Other comprehensive income (loss)	(77.6)	(184.9)	(88.3)	(438.5)
Balance at end of period	9,619.8	8,815.0	9,619.8	8,815.0
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(263.2)	(291.0)	(251.7)	(41.6)
Other comprehensive income (loss) before reclassifications			(69.2)	(429.6)
Amounts reclassified from accumulated other comprehensive loss			(20.7)	(2.8)
Other comprehensive income (loss)	(78.4)	(183.0)	(89.9)	(432.4)
Balance at end of period	(341.6)	(474.0)	(341.6)	(474.0)
Foreign Currency Translation Adjustments, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			(282.8)	(29.9)
Other comprehensive income (loss) before reclassifications			(80.1)	(444.5)
Amounts reclassified from accumulated other comprehensive loss			(11.0)	(4.3)
Other comprehensive income (loss)			(91.1)	(448.8)
Balance at end of period	(373.9)	(478.7)	(373.9)	(478.7)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			16.0	0.0
Other comprehensive income (loss) before reclassifications			11.2	12.3
Amounts reclassified from accumulated other comprehensive loss			(8.1)	1.9
Other comprehensive income (loss)			3.1	14.2
Balance at end of period	19.1	14.2	19.1	14.2
Pension and Other Postretirement Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			15.1	(11.7)
Other comprehensive income (loss) before reclassifications			(0.3)	2.6
Amounts reclassified from accumulated other comprehensive loss			(1.6)	(0.4)
Other comprehensive income (loss)			(1.9)	2.2
Balance at end of period	$ 13.2	$ (9.5)	$ 13.2	$ (9.5)