Financial Instruments Schedule of Derivative Fair Values (Details) - USD ($) $ in Millions	Mar. 28, 2020	Dec. 28, 2019
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	$ 457	$ 255
Derivative liability, fair value, gross liability	191	119
Foreign exchange contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	58	7
Derivative liability, fair value, gross liability	4	20
Foreign exchange contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	11	6
Derivative liability, fair value, gross liability	40	3
Cross-currency contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	378	200
Derivative liability, fair value, gross liability	27	88
Commodity contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	10	42
Derivative liability, fair value, gross liability	120	8
Level 1
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	10	42
Derivative liability, fair value, gross liability	104	6
Level 1 | Foreign exchange contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	0	0
Level 1 | Foreign exchange contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	0	0
Level 1 | Cross-currency contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	0	0
Level 1 | Commodity contracts | Other current assets
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	9
Level 1 | Commodity contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	10	42
Derivative liability, fair value, gross liability	104	6
Level 2
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	447	213
Derivative liability, fair value, gross liability	87	113
Level 2 | Foreign exchange contracts | Other current assets
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	58	12
Level 2 | Foreign exchange contracts | Other non-current assets
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	11	1
Level 2 | Foreign exchange contracts | Other current liabilities
Derivatives Fair Value [Line Items]
Derivative liability, fair value, gross liability	43
Level 2 | Foreign exchange contracts | Other non-current liabilities
Derivatives Fair Value [Line Items]
Derivative liability, fair value, gross liability	1
Level 2 | Foreign exchange contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	58	7
Derivative liability, fair value, gross liability	4	20
Level 2 | Foreign exchange contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	11	6
Derivative liability, fair value, gross liability	40	3
Level 2 | Cross-currency contracts | Other non-current assets
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	378	200
Level 2 | Cross-currency contracts | Other non-current liabilities
Derivatives Fair Value [Line Items]
Derivative liability, fair value, gross liability	27	88
Level 2 | Cross-currency contracts | Designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	378	200
Derivative liability, fair value, gross liability	27	88
Level 2 | Commodity contracts | Other non-current assets
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	1
Level 2 | Commodity contracts | Other current liabilities
Derivatives Fair Value [Line Items]
Derivative liability, fair value, gross liability	109
Level 2 | Commodity contracts | Other non-current liabilities
Derivatives Fair Value [Line Items]
Derivative liability, fair value, gross liability	11
Level 2 | Commodity contracts | Not designated as hedging instrument
Derivatives Fair Value [Line Items]
Derivative asset, fair value, gross asset	0	0
Derivative liability, fair value, gross liability	$ 16	$ 2