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Derivatives - Gains/(Losses) from Hedging Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Gains/(Losses) from Derivatives |  |  |  |
Revenues | $ 1,026.1 | $ 1,066.4 | $ 2,009.7 | $ 2,115.5
Interest expense | (36.7) | (31.1) | (69.3) | (57.2)
Cash Flow Hedges | Foreign currency contracts | Revenues |  |  |  |
Cash Flow and Fair Value Hedges |  |  |  |
Gains/(losses) reclassified from AOCL into earnings | (4.1) | 1.3 | (1.5) | 4.0
Amount excluded from effectiveness testing recognized in earnings based on an amortization approach | 2.5 | 1.6 | 4.6 | 3.2
Cash Flow Hedges | Interest rate contracts | Interest Expense |  |  |  |
Cash Flow and Fair Value Hedges |  |  |  |
Gains/(losses) reclassified from AOCL into earnings | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1

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