v3.26.1
Accumulated Other Comprehensive Loss - Amounts Reclassified Out of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Other (expense), net $ 28.6   $ 22.1   $ 49.4 $ 39.0
Total before tax 79.8   0.0   102.9 20.0
Income tax 15.8   20.0   29.5 30.6
Total reclassifications for the period 95.6 $ 36.8 20.0 $ 30.6 132.4 50.6
Reclassification out of Accumulated Other Comprehensive Loss            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Total before tax 24.8   20.7   49.0 41.6
Income tax (1.4)   (0.6)   (2.8) (2.0)
Total reclassifications for the period 23.4   20.1   46.2 39.6
Reclassification out of Accumulated Other Comprehensive Loss | Adjustment for substantial completion of liquidation of certain foreign subsidiaries            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Other (expense), net 0.2   (1.6)   (0.1) (2.7)
Reclassification out of Accumulated Other Comprehensive Loss | Amortization of prior service benefit            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Other (expense), net (0.8)   (0.9)   (1.7) (1.8)
Reclassification out of Accumulated Other Comprehensive Loss | Amortization of actuarial losses            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Other (expense), net $ 25.4   $ 23.2   $ 50.8 $ 46.1