Accumulated Other Comprehensive Income (Loss) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 13,284.2
Other comprehensive income (loss), before reclassifications, before tax	0.3
Ending balance	10,523.3
Foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,087.0)
Tax benefit (expense)	29.5
Ending balance	(841.9)
Accumulated foreign currency adjustment, excluding net investment hedging, attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss), before reclassifications, before tax	325.5
Accumulated foreign currency adjustment, net investment hedging, attributable to parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss), before reclassifications, before tax	(109.9)
AOCI foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive income (loss), before reclassifications, before tax	325.5
Gain (loss) on derivative instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	83.6
Other comprehensive income (loss), before reclassifications, before tax	(31.0)
Reclassification of AOCI, current period, before tax	(0.5)
Tax benefit (expense)	7.9
Ending balance	60.0
Pension and postretirement benefit adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(342.4)
Reclassification of AOCI, current period, before tax	(5.7)
Tax benefit (expense)	1.3
Ending balance	(346.8)
Equity method investments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(16.6)
Other comprehensive income (loss), before reclassifications, before tax	0.3
Tax benefit (expense)	(0.1)
Ending balance	(16.4)
Accumulated other comprehensive income (loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,362.4)
Tax benefit (expense)	38.6
Ending balance	$ (1,145.1)