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Financial Instruments (Fair Values of Financial Assets and Liabilities) (Details) - USD ($) $ in Millions | Dec. 28, 2019 | Dec. 29, 2018
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Senior Notes | $ 2,200 | $ 7,700
Short-term Investments | 229 | 272
Total asset derivatives at fair value | 41 | 55
Total liability derivatives at fair value | 470 | 568
Total Financial Assets at Fair Value | 287 | 3,931
Total Financial Liabilities at Fair Value | 938 | 1,018
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | 5 |
Derivatives Designated As Cash Flow Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedging instruments, Assets, Total | 9 | 44
Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives designated as hedging instruments, Liabilities, Total | 432 | 341
Derivatives Not Designated As Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives not designated as hedging instruments, Assets, Total | 32 | 10
Derivatives Not Designated As Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value | 33 | 119
Fair Value, Inputs, Level 1 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Commodity contracts - other | 2 | 0
Fair Value, Inputs, Level 1 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Commodity contracts - other | 5 | 1
Fair Value, Inputs, Level 1 [Member] | Derivatives Not Designated As Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Commodity contracts - other | 23 | 2
Fair Value, Inputs, Level 1 [Member] | Derivatives Not Designated As Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Commodity contracts - other | 7 | 17
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Fair Value Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest rate derivatives | 0 | 1
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest rate derivatives | 5 | 108
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Foreign Exchange Forward contracts | 5 | 44
Interest rate derivatives | 0 | 0
Commodity contracts - other | 2 | 0
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Foreign Exchange Forward contracts | 32 | 14
Interest rate derivatives | 390 | 323
Commodity contracts - other | 5 | 3
Fair Value, Inputs, Level 2 [Member] | Derivatives Not Designated As Hedging Instruments Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Foreign Exchange Forward contracts | 3 | 3
Commodity contracts - other | 6 | 5
Fair Value, Inputs, Level 2 [Member] | Derivatives Not Designated As Hedging Instruments Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Foreign Exchange Forward contracts | 2 | 10
Commodity contracts - other | 24 | 92
Fair Value, Inputs, Level 2 [Member] | Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Debt Securities, Available-for-sale | 0 | 3,658
Fair Value, Inputs, Level 2 [Member] | Liability [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Debt Securities, Available-for-sale | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Prepaid Forward Asset Fair Value | 17 | 22
Deferred compensation | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Liability [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Prepaid Forward Asset Fair Value | 0 | 0
Deferred compensation | 468 | 450
Assets [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Short-term Investments | 229 | 196
Liability [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Short-term Investments | 0 | 0
Commodity Contract [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | $ 1,100 | $ 1,100

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