Fair Value Disclosure Fair Value Disclosure - Impact of Cash Flow and Hedge Accounting Relationships (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest expense, net	$ (143.0)	$ (96.2)	$ (294.0)	$ (191.1)
Other (expense) income	12.7	(1.1)	18.9	(3.8)
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other (expense) income	0.2	1.9	4.1	(1.4)
Interest Rate Contract [Member] \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Expense, Operating and Nonoperating	0.9	(0.3)	0.2	(0.6)
Interest Rate Contract [Member] \| Fair Value Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Amount of Hedged Item	0.0	(0.4)	(0.1)	(1.8)
Interest Rate Contract [Member] \| Fair Value Hedging [Member] \| Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0.0	0.4	0.1	1.8
Foreign Exchange Contract [Member] \| Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other (expense) income	$ (0.1)	$ (0.8)	$ (0.1)	$ (0.8)

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense.

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