Summary of Significant Accounting Policies Fair Values of Derivative Instruments Included on Consolidated Balance Sheet (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	$ 209.3	$ 282.5
Liability Derivatives Fair Value	(118.2)	(141.7)
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	5.6
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	15.2	82.0
Liability Derivatives Fair Value	(113.4)	(140.1)
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	194.1	200.5
Liability Derivatives Fair Value	(4.8)	(1.6)
Royalty Arrangement
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 1,900.0
Period covered by hedge	18 months
Foreign currency \| Prepaid expenses and other current assets \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	$ 8.5	53.3
Foreign currency \| Prepaid expenses and other current assets \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	5.5	0.0
Foreign currency \| Accrued payroll and other liabilities \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	(37.3)	(17.9)
Foreign currency \| Accrued payroll and other liabilities \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	(4.8)	(1.6)
Foreign currency \| Miscellaneous other assets \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	2.4	28.7
Foreign currency \| Other long- term liabilities \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	(14.3)	(30.7)
Interest rate \| Prepaid expenses and other current assets \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	4.3	0.0
Interest rate \| Accrued payroll and other liabilities \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	(3.6)	0.0
Interest rate \| Miscellaneous other assets \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	0.0	0.0
Interest rate \| Other long- term liabilities \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	(58.2)	(91.5)
Equity \| Prepaid expenses and other current assets \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	0.0	200.5
Equity \| Accrued payroll and other liabilities \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value
Equity \| Miscellaneous other assets \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value		$ 0.0
Fair Value Hedging \| Interest Rate Risk [Member]
Derivatives, Fair Value [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments	61.8
Gain (Loss) Recognized in Income on Derivative	29.7
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	1,000.0
Intercompany Debt [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Nonderivative Instruments	555.0
Debt [Member]
Derivatives, Fair Value [Line Items]
Notional Amount of Nonderivative Instruments	$ 14,400.0

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