Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated OCI (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
(Gain) loss on cash flow hedges:
Income tax impact	$ 9.6	$ (16.6)
Net income	212.6	84.7
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items:	203.0	101.3
Income tax impact	9.6	(16.6)
Amount Reclassified from AOCI | (Gain) loss on cash flow hedges:
(Gain) loss on cash flow hedges:
Gain recognized in income on derivatives	(6.5)	(12.9)
Income tax impact	1.7	3.3
Net income	(4.8)	(9.6)
Amortization of defined benefit pension and postretirement plan items:
Income tax impact	1.7	3.3
Amount Reclassified from AOCI | Amortization of prior service cost
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items:	3.5	(0.9)
Amount Reclassified from AOCI | Amortization of net actuarial loss
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items:	2.0	6.6
Amount Reclassified from AOCI | Pension and Postretirement Benefits
(Gain) loss on cash flow hedges:
Income tax impact	(1.3)	(1.4)
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items:	5.5	5.7
Income tax impact	(1.3)	(1.4)
Total	$ 4.2	$ 4.3