Accumulated Other Comprehensive Income (Loss) (Reclassifications Out of Accumulated OCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Loss on cash flow hedges:
Loss recognized in income on derivatives	$ (469.5)	$ (497.7)
Income tax benefit	(15.6)	(18.5)
Net income	38.4	43.7
Amortization of defined benefit pension and postretirement plan items:
Total	5.2	6.0
Cash Flow Hedges
Amortization of defined benefit pension and postretirement plan items:
Total	1.6	1.1
Prior Service Cost
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	(1.5)	(1.5)
Net Actuarial Loss
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	7.1	9.0
Pension and Postretirement Benefits
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	5.6	7.5
Income tax benefit	(2.0)	(2.6)
Total	3.6	4.9
Amount Reclassified from AOCI | Cash Flow Hedges
Loss on cash flow hedges:
Loss recognized in income on derivatives	2.2	1.4
Income tax benefit	(0.6)	(0.3)
Net income	$ 1.6	$ 1.1