v3.26.1
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. 28, 2026
Mar. 29, 2026
Jun. 29, 2025
Mar. 30, 2025
Jun. 28, 2026
Jun. 29, 2025
(Gain) loss on cash flow hedges:            
Total before tax $ (321.3)   $ (260.6)   $ (600.0) $ (499.5)
Income tax impact 69.6   50.2   121.5 100.3
Total (251.7) $ (226.8) (209.9) $ (188.6) (478.5) (398.5)
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses 1,329.3   1,235.5   2,595.2 2,426.1
Total before tax (321.3)   (260.6)   (600.0) (499.5)
Income tax impact 69.6   50.2   121.5 100.3
Total (251.7) $ (226.8) (209.9) $ (188.6) (478.5) (398.5)
Amount Reclassified from AOCI | Cash Flow Hedges            
(Gain) loss on cash flow hedges:            
Total before tax (0.1)   (0.1)   (0.6) 0.8
Income tax impact 0.0   0.0   0.1 (0.2)
Total (0.1)   (0.1)   (0.5) 0.6
Amortization of defined benefit pension and postretirement plan items:            
Total before tax (0.1)   (0.1)   (0.6) 0.8
Income tax impact 0.0   0.0   0.1 (0.2)
Total (0.1)   (0.1)   (0.5) 0.6
Amount Reclassified from AOCI | Pension and Postretirement Benefits            
(Gain) loss on cash flow hedges:            
Total before tax 3.7   2.3   7.0 4.2
Income tax impact (0.8)   (0.6)   (1.6) (1.0)
Total 2.9   1.7   5.4 3.2
Amortization of defined benefit pension and postretirement plan items:            
Total before tax 3.7   2.3   7.0 4.2
Income tax impact (0.8)   (0.6)   (1.6) (1.0)
Total 2.9   1.7   5.4 3.2
Amount Reclassified from AOCI | Amortization of net prior service cost (income)            
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses 0.0   0.0   0.1 0.1
Amount Reclassified from AOCI | Amortization of net actuarial loss            
Amortization of defined benefit pension and postretirement plan items:            
Costs and expenses $ 3.7   $ 2.3   $ 6.9 $ 4.1