v3.25.2
Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 29, 2025
Mar. 30, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 29, 2025
Jun. 30, 2024
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses $ 1,235.5   $ 1,127.1   $ 2,426.1 $ 2,242.9
Total before tax (260.6)   (231.7)   (499.5) (457.2)
Income tax impact 50.2   51.4   100.3 97.8
Total (209.9) $ (188.6) (180.2) $ (178.5) (398.5) (358.7)
Amount Reclassified from AOCI | Cash Flow Hedges            
Amortization of defined benefit pension and postretirement plan items:            
Total before tax (0.1)   (0.4)   0.8 (9.7)
Income tax impact 0.0   0.1   (0.2) 2.5
Total (0.1)   (0.3)   0.6 (7.2)
Amount Reclassified from AOCI | Pension and Postretirement Benefits            
Amortization of defined benefit pension and postretirement plan items:            
Total before tax 2.3   2.8   4.2 5.6
Income tax impact (0.6)   (0.7)   (1.0) (1.4)
Total 1.7   2.1   3.2 4.2
Amount Reclassified from AOCI | Amortization of prior service cost            
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses 0.0   (0.1)   0.1 (0.2)
Amount Reclassified from AOCI | Amortization of net actuarial loss            
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses $ 2.3   $ 2.9   $ 4.1 $ 5.8