Financial Instruments (Fair Values of Financial Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 25, 2021
Derivatives, Fair Value [Line Items]
Short-term Investments	$ 394	$ 392
Total asset derivatives at fair value	58	167
Total liability derivatives at fair value	318	312
Total Financial Assets at Fair Value	989	525
Total Financial Liabilities at Fair Value	752	817
Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Assets, Total	26	113
Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivatives designated as hedging instruments, Liabilities, Total	246	283
Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Derivatives not designated as hedging instruments, Assets, Total	32	54
Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value	72	29
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Exchange Forward contracts	24	29
Interest rate derivatives	0	14
Commodity contracts - other	2	70
Fair Value, Inputs, Level 2 [Member] | Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Exchange Forward contracts	22	14
Interest rate derivatives	164	264
Commodity contracts - other	60	5
Fair Value, Inputs, Level 2 [Member] | Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Exchange Forward contracts	21	19
Commodity contracts - other	11	35
Fair Value, Inputs, Level 2 [Member] | Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Exchange Forward contracts	21	7
Commodity contracts - other	51	22
Fair Value, Inputs, Level 2 [Member] | Assets [Member]
Derivatives, Fair Value [Line Items]
Prepaid Forward Asset Fair Value	14	21
Deferred compensation	0	0
Business Combinations [Abstract]
Debt Securities, Available-for-sale	660	0
Fair Value, Inputs, Level 2 [Member] | Liability [Member]
Derivatives, Fair Value [Line Items]
Prepaid Forward Asset Fair Value	0	0
Deferred compensation	434	505
Business Combinations [Abstract]
Debt Securities, Available-for-sale	0	0
Fair Value, Inputs, Level 2 [Member] | Short-Term Investments
Business Combinations [Abstract]
Debt Securities, Available-for-sale	104
Fair Value, Inputs, Level 2 [Member] | Other Assets
Business Combinations [Abstract]
Debt Securities, Available-for-sale	553
Fair Value, Inputs, Level 2 [Member] | Cash And Cash Equivalents
Business Combinations [Abstract]
Debt Securities, Available-for-sale	3
Assets [Member] | Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Short-term Investments	257	337
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	$ 1,800	$ 1,600