Accumulated Other Comprehensive Income (Loss) (Reclassifications Out of Accumulated OCI) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Loss on cash flow hedges:
Loss recognized in income on derivatives	$ 331.8	$ 353.9	$ 651.8	$ 696.6
Income tax benefit	(19.5)	(18.4)	(35.1)	(37.0)
Total	(45.7)	(48.3)	(84.1)	(92.0)
Amortization of defined benefit pension and postretirement plan items:
Total	4.5	5.4	9.7	11.3
Cash Flow Hedges
Amortization of defined benefit pension and postretirement plan items:
Total	0.6	1.4	2.2	2.4
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)	(3.0)	(3.0)
Net Actuarial Loss
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	7.4	8.1	14.5	17.1
Pension and Postretirement Benefits
Amortization of defined benefit pension and postretirement plan items:
Amortization of defined benefit pension and postretirement plan items	5.9	6.6	11.5	14.1
Income tax benefit	(2.0)	(2.6)	(4.0)	(5.2)
Total	3.9	4.0	7.5	8.9
Amount Reclassified from AOCI | Cash Flow Hedges
Loss on cash flow hedges:
Loss recognized in income on derivatives	0.8	1.8	3.0	3.2
Income tax benefit	(0.2)	(0.4)	(0.8)	(0.8)
Total	$ 0.6	$ 1.4	$ 2.2	$ 2.4