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		Sep. 29, 2018	Dec. 30, 2017
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		$ 6	$ 409
Long-term debt		8,715	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		0	402
Long-term debt		3,343	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]	0	2
Long-term debt	[1]	(54)	(22)
Hedging adjustment | Discontinued Hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt			2
Long-term debt		$ (19)	$ 32

[1] The current maturities of hedged long-term debt includes $2 million of hedging adjustment on discontinued hedging relationships as of December 30, 2017. The hedged long-term debt includes $(19) million and $32 million of hedging adjustment on discontinued hedging relationships as of September 29, 2018 and December 30, 2017, respectively.