Accumulated Other Comprehensive Loss (Reclassifications Out of Accumulated OCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2017	Apr. 03, 2016
Loss on cash flow hedges:
Loss recognized in income on derivatives	$ 354.2	$ 324.8
Income tax benefit	10.1	14.9
Total	(30.5)	(39.0)
Amortization of defined benefit pension and postretirement plan items:
Total	3.0	5.2
Cash Flow Hedges
Amortization of defined benefit pension and postretirement plan items:
Total	(0.5)	1.6
Prior Service Cost
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	(1.6)	(1.5)
Net Actuarial Loss
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	7.2	7.1
Pension and Postretirement Benefits
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	5.6	5.6
Income tax benefit	(2.1)	(2.0)
Total	3.5	3.6
Amount Reclassified from AOCI | Cash Flow Hedges
Loss on cash flow hedges:
Loss recognized in income on derivatives	(0.6)	2.2
Income tax benefit	0.1	(0.6)
Total	$ (0.5)	$ 1.6