Financial Instruments (Effective Portion of Pre-Tax (Gains)/Losses on Derivative Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 25, 2021	Dec. 26, 2020
Fair Value/Non-Designated Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Income Statement(a)	$ (166)	$ 47
Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement(b)	(48)	(116)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	440	(109)
Foreign Exchange Forward Contracts \| Fair Value/Non-Designated Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Income Statement(a)	(4)	0
Foreign Exchange Forward Contracts \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement(b)	82	(43)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	7	9
Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	2,100	3,000
Interest Rate Contracts \| Fair Value/Non-Designated Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Income Statement(a)	56	(6)
Interest Rate Contracts \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement(b)	64	(129)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(44)	96
Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	1,600	1,100
Commodity Contracts \| Fair Value/Non-Designated Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Income Statement(a)	(218)	53
Commodity Contracts \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement(b)	(194)	56
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	285	21
Net Investment Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	2,100	2,700
Net Investment Hedging [Member] \| Fair Value/Non-Designated Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Income Statement(a)	0	0
Net Investment Hedging [Member] \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement(b)	0	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	192	$ (235)
Treasury Lock
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 3,200

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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+ References

No definition available.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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-Publisher FASB
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- Definition

Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580

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