Fair Values of Financial Assets and Liabilities (Detail) - USD ($) $ in Millions	Mar. 21, 2020	Dec. 28, 2019
Derivatives, Fair Value [Line Items]
Senior Notes	$ 2,200	$ 2,200
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	6	(5)
Short-term Investments	158	229
Derivative Asset, Fair Value, Gross Asset	74	41
Derivative Liability, Fair Value, Gross Liability	840	470
Total Financial Assets At Fair Value	245	287
Total Financial Liabilities At Fair Value	1,219	938
Derivatives not designated as hedging instruments:
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	42	49
Collateral Already Posted, Aggregate Fair Value	201	58
Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Assets at Fair Value	53	9
Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	687	432
Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	14	32
Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value	152	33
Fair Value, Inputs, Level 2 [Member] \| Derivatives Designated As Fair Value Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Fair Value Hedge Asset at Fair Value	7	0
Fair Value, Inputs, Level 2 [Member] \| Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Fair Value Hedge Liability at Fair Value	1	5
Fair Value, Inputs, Level 2 [Member] \| Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	53	5
Interest Rate Cash Flow Hedge Asset at Fair Value	0	0
Price Risk Cash Flow Hedge Asset, at Fair Value	0	2
Fair Value, Inputs, Level 2 [Member] \| Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Liability at Fair Value	13	32
Interest Rate Cash Flow Hedge Liability at Fair Value	613	390
Price Risk Cash Flow Hedge Liability, at Fair Value	30	5
Fair Value, Inputs, Level 2 [Member] \| Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	8	3
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	5	6
Fair Value, Inputs, Level 2 [Member] \| Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	1	2
Price Risk Derivative Instruments Not Designated as Hedging Instruments Liability, at Fair Value	40	24
Fair Value, Inputs, Level 2 [Member] \| Liability [Member]
Derivatives, Fair Value [Line Items]
Prepaid Forward Asset Fair Value	0	0
Deferred Compensation Liability, Current and Noncurrent	379	468
Fair Value, Inputs, Level 2 [Member] \| Assets [Member]
Derivatives, Fair Value [Line Items]
Prepaid Forward Asset Fair Value	13	17
Deferred Compensation Liability, Current and Noncurrent	0	0
Fair Value, Inputs, Level 1 [Member] \| Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Price Risk Cash Flow Hedge Asset, at Fair Value	0	2
Fair Value, Inputs, Level 1 [Member] \| Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Price Risk Cash Flow Hedge Liability, at Fair Value	31	5
Fair Value, Inputs, Level 1 [Member] \| Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	1	23
Fair Value, Inputs, Level 1 [Member] \| Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Price Risk Derivative Instruments Not Designated as Hedging Instruments Liability, at Fair Value	111	7
Liability [Member] \| Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Short-term Investments	0	0
Assets [Member] \| Fair Value, Inputs, Level 1 [Member]
Derivatives, Fair Value [Line Items]
Short-term Investments	$ 158	$ 229

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