Derivative Instruments and Hedging Activities - Net Investment Hedge Gains (Losses) Recognized on Condensed Consolidated Statements of Comprehensive Income (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Derivative Instruments Gain Loss [Line Items] | ||
| Amount of Gain (Loss) Recognized in AOCI | $ (98.3) | $ 70.5 |
| Euro Notes [Member] | ||
| Derivative Instruments Gain Loss [Line Items] | ||
| Amount of Gain (Loss) Recognized in AOCI | (75.7) | 24.4 |
| Cross-currency Interest Rate Swaps [Member] | ||
| Derivative Instruments Gain Loss [Line Items] | ||
| Amount of Gain (Loss) Recognized in AOCI | $ (22.6) | $ 46.1 |