Fair Values of Financial Assets and Liabilities (Detail) $ in Millions	6 Months Ended
	Jun. 13, 2020 USD ($)	Dec. 28, 2019 USD ($)
Derivatives, Fair Value [Line Items]
Senior Notes	$ 1,500	$ 2,200
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	7	(5)
Short-term Investments	196	229
Derivative Asset, Fair Value, Gross Asset	87	41
Derivative Liability, Fair Value, Gross Liability	581	470
Total Financial Assets At Fair Value	299	287
Total Financial Liabilities At Fair Value	1,873	938
Derivatives not designated as hedging instruments:
Deferred (Gain) Loss on Discontinuation of Fair Value Hedge	35	49
Collateral Already Posted, Aggregate Fair Value	64	58
Business Combinations [Abstract]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	1,100
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	864
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances	848
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	$ 16
Duration of contingent consideration arrangement	15 years
Business Combination, Contingent Consideration, Asset	$ 0	0
Business Combination, Contingent Consideration, Liability	864	0
Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Assets at Fair Value	55	9
Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value	530	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	25	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	51	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	0	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	54	5
Interest Rate Cash Flow Hedge Asset at Fair Value	0	0
Price Risk Cash Flow Hedge Asset, at Fair Value	1	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	20	32
Interest Rate Cash Flow Hedge Liability at Fair Value	483	390
Price Risk Cash Flow Hedge Liability, at Fair Value	27	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	10	3
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	15	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	8	2
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	0	0
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	1	0
Price Risk Derivative Instruments Not Designated as Hedging Instruments Liability, at Fair Value	42	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	428	468
Fair Value, Inputs, Level 2 [Member] | Assets [Member]
Derivatives, Fair Value [Line Items]
Prepaid Forward Asset Fair Value	16	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	0	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	0	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	0	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	$ 196	$ 229
Fair Value, Inputs, Level 3, estimated range of payments, low [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	40,000,000
Fair Value, Inputs, Level 3, estimated range of payments, high [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	100,000,000
Fair Value, Inputs, Level 3, estimated range of payments, average [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	70,000,000
Fair Value, Inputs, Level 3, estimated range of probabilities of acceleration, low [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	0
Fair Value, Inputs, Level 3, estimated range of probabilities of acceleration, high [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.10
Fair Value, Inputs, Level 3, weighted average payment period [Member]
Business Combinations [Abstract]
Duration of contingent consideration arrangement	7 years
Fair Value, Inputs, Level 3, estimated range of discount rates, low [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.01
Fair Value, Inputs, Level 3, estimated range of discount rates, high [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.05
Fair Value, Inputs, Level 3, weighted average discount rate [Member]
Business Combinations [Abstract]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.02