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Accumulated Other Comprehensive Income (Loss) | 9 Months Ended
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Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) Changes in accumulated other comprehensive income (loss), net of income taxes:
| Cash Flow Hedge |  | Defined Benefit Pension Plans and Postemployment Arrangements |  | Foreign Currency Translation |  | Total
| Nine Months Ended September 30, 2025
January 1 | $ | (5.0) |  |  | $ | (25.5) |  |  | $ | (1,445.4) |  |  | $ | (1,475.9) |
Other comprehensive income (loss) before reclassifications | — |  |  | — |  |  | 144.6 |  |  | 144.6 |
Reclassification from accumulated other comprehensive income (loss) | 2.8 |  |  | 1.4 |  |  | — |  |  | 4.2 |
September 30 | $ | (2.2) |  |  | $ | (24.1) |  |  | $ | (1,300.8) |  |  | $ | (1,327.1) |
| Nine Months Ended September 30, 2024
January 1 | $ | (8.1) |  |  | $ | (42.7) |  |  | $ | (1,286.8) |  |  | $ | (1,337.6) |
Other comprehensive income (loss) before reclassifications | — |  |  | — |  |  | 59.4 |  |  | 59.4 |
Reclassification from accumulated other comprehensive income (loss) | 2.8 |  |  | 1.1 |  |  | — |  |  | 3.9 |
September 30 | $ | (5.3) |  |  | $ | (41.6) |  |  | $ | (1,227.4) |  |  | $ | (1,274.3) |

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