v3.25.2
Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other–net, (income) expense $ (101.0) $ (7.8) $ (104.4) $ 21.0
Total before tax 6,776.4 3,517.2 10,232.5 6,053.3
Tax benefit (1,115.9) (550.2) (1,812.7) (843.4)
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total reclassifications, net of tax 22.2 24.7 70.1 57.6
Retirement Benefit Plans | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Total before tax 21.2 30.2 41.7 59.3
Tax benefit (4.5) (6.3) (8.8) (12.4)
Total reclassifications, net of tax 16.7 23.9 32.9 46.9
Prior service costs (benefits), net | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other–net, (income) expense 0.4 (0.9) 0.8 (1.8)
Actuarial losses, net | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other–net, (income) expense 20.8 31.1 40.9 61.1
Other, net of tax | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other–net, (income) expense $ 5.5 $ 0.8 $ 37.2 $ 10.7