Derivative Instruments - Effect of Foreign Currency Forward Contracts and Forward Currency Options Designated as Hedging Instruments (Details) - Foreign Exchange Contract - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Revenue | ||||
| Derivatives [Line Items] | ||||
| Net Gains/(Losses) Reclassified from AOCI into Operating Income (in millions) | $ (29.1) | $ (7.6) | $ (41.1) | $ 2.9 |
| Revenue | Cash flows, revenue | ||||
| Derivatives [Line Items] | ||||
| Net Gains/(Losses) Excluded from Effectiveness Testing and Recognized in Operating Income (in millions) | 8.0 | 2.9 | 7.6 | 4.0 |
| Operating expense | ||||
| Derivatives [Line Items] | ||||
| Net Gains/(Losses) Reclassified from AOCI into Operating Income (in millions) | 6.7 | (1.5) | 14.0 | (8.5) |
| Operating expense | Cash flows, operating expenses | ||||
| Derivatives [Line Items] | ||||
| Net Gains/(Losses) Excluded from Effectiveness Testing and Recognized in Operating Income (in millions) | $ 0.0 | $ 0.3 | $ (1.8) | $ (1.6) |