Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on Gross Basis (Detail) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 66.3	$ 157.1
Derivative Liabilities	202.8	191.9
Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	12.9	6.1
Foreign Exchange Forward Contracts [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	1.8	7.1
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	34.1	82.3
Foreign Exchange Forward Contracts [Member] | Other Current Assets [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	1.8	7.1
Foreign Exchange Forward Contracts [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	12.6	24.5
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	32.7	13.8
Foreign Exchange Forward Contracts [Member] | Other Current Liabilities [Member] | Derivatives Not Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	12.9	6.1
Foreign Exchange Forward Contracts [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	21.1	5.3
Cross-currency Interest Rate Swaps [Member] | Other Current Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets		1.6
Cross-currency Interest Rate Swaps [Member] | Other Assets [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	19.6	48.7
Cross-currency Interest Rate Swaps [Member] | Other Current Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	27.9	12.0
Cross-currency Interest Rate Swaps [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities		2.2
Interest Rate Swap [Member] | Other Long-term Liabilities [Member] | Derivatives Designated as Hedges [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 121.1	$ 158.6