Derivative Instruments and Fair Value Measurements Schedule of Cumulative Basis Adjustments for Fair Value Hedges (Details) - USD ($) $ in Millions		Dec. 28, 2019	Dec. 29, 2018
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt		$ 620	$ 510
Long-term debt		7,195	8,207
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		493	503
Long-term debt		2,643	3,354
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	3
Long-term debt	[1]	19	(18)
Cumulative fair value adjustment | Discontinued hedging | Interest rate contracts
Derivatives, Fair Value [Line Items]
Current maturities of long-term debt			3
Long-term debt		$ 15	$ (12)

[1] The current maturities of hedged long-term debt includes $3 million of hedging adjustment on discontinued hedging relationships as of December 29, 2018. The hedged long-term debt includes $15 million and $(12) million of hedging adjustment on discontinued hedging relationships as of December 28, 2019 and December 29, 2018, respectively.