Derivative Instruments and Fair Value Measurements Derivative Instruments and Fair Value Measurements - Schedule of Cumulative Basis Adjustments for Fair Value Hedges (Details) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 30, 2017
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		$ 408	$ 409
Long-term debt		7,881	7,836
Carrying amount of hedged liability | Fair Value Hedges | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		401	402
Long-term debt		3,406	3,481
Cumulative fair value adjustment | Fair Value Hedges | Interest rate contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt	[1]	1	2
Long-term debt	[1]	(53)	(22)
Hedging adjustment | Discontinued Hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		1	2
Long-term debt		$ (20)	$ 32

[1] The current maturities of hedged long-term debt includes $1 million and $2 million of hedging adjustment on discontinued hedging relationships as of March 31, 2018 and December 30, 2017, respectively. The hedged long-term debt includes $(20) million and $32 million of hedging adjustment on discontinued hedging relationships as of March 31, 2018 and December 30, 2017, respectively.