Effective Portion of Pre Tax Gains and Losses on Derivative Instruments (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 20, 2021	Mar. 21, 2020
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	$ (97)	$ 236
Cash Flow Hedge Gain/(Loss) to be Reclassified within Twelve Months	76
Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	(76)	144
Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	(160)	152
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	(1)	157
Foreign Exchange Forward [Member] \| Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	4	(11)
Foreign Exchange Forward [Member] \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	11	(51)
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	13	4
Interest Rate Contract [Member] \| Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	1	(11)
Interest Rate Contract [Member] \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	(18)	223
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	(4)	150
Commodity Contract [Member] \| Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	(81)	166
Commodity Contract [Member] \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	(90)	64
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	(10)	3
Net Investment Hedging [Member] \| Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	0	0
Net Investment Hedging [Member] \| Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss	(63)	(84)
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	$ 0	$ 0

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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