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Accumulated Other Comprehensive Loss - Amounts Reclassified Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Other (expense), net | $ 142.1 | $ 196.9
Total before tax | 132.3 | 154.6
Income tax | 17.0 | 19.9
Reclassification out of Accumulated Other Comprehensive Loss |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Total before tax | 147.3 | 199.9
Income tax | (0.8) | (0.4)
Total reclassifications for the period | 146.5 | 199.5
Reclassification out of Accumulated Other Comprehensive Loss | Translation Adjustments, Adjustment for substantial completion of liquidation of foreign subsidiaries |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Other (expense), net | 0.5 | (3.5)
Reclassification out of Accumulated Other Comprehensive Loss | Amortization of prior service benefit |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Other (expense), net | (1.0) | (1.3)
Reclassification out of Accumulated Other Comprehensive Loss | Amortization of actuarial losses |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Other (expense), net | 22.3 | 21.5
Reclassification out of Accumulated Other Comprehensive Loss | Settlement losses |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Other (expense), net | $ 125.5 | $ 183.2

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