Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on Gross Basis (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 64.4	$ 81.0
Derivative Liabilities	210.3	237.7
Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2.4
Foreign Exchange Forward Contracts [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		1.2
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	38.4	58.4
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		1.2
Foreign Exchange Forward Contracts [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	7.8	17.2
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	13.0	13.9
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2.4
Foreign Exchange Forward Contracts [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	9.3	11.0
Cross-currency Interest Rate Swaps [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	18.2	5.4
Cross-currency Interest Rate Swaps [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	60.3	33.3
Cross-currency Interest Rate Swaps [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	5.9	34.8
Interest Rate Swap [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 121.8	$ 144.7