DERIVATIVES AND HEDGING TRANSACTIONS - Schedule of Revaluation Gains and Losses on Euro Notes and Cross-currency Swap Derivative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Fair value company's outstanding derivatives | ||||
| Total revaluation gain (loss), net of tax | $ (8.8) | $ (210.7) | $ 23.5 | $ (240.5) |
| Net Investment Hedging | ||||
| Fair value company's outstanding derivatives | ||||
| Total revaluation gain (loss), net of tax | (8.8) | (210.7) | 23.5 | (240.5) |
| Euronotes | Net Investment Hedging | ||||
| Fair value company's outstanding derivatives | ||||
| Total revaluation gain (loss), net of tax | 0.0 | (41.2) | 0.0 | (34.1) |
| Cross-currency swap derivative contracts | Net Investment Hedging | ||||
| Fair value company's outstanding derivatives | ||||
| Total revaluation gain (loss), net of tax | $ (8.8) | $ (169.5) | $ 23.5 | $ (206.4) |