Effective Portion of Pre Tax Gains and Losses on Derivative Instruments (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 25, 2017	Mar. 19, 2016
Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)		$ 20	$ (32)
Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss		21	0
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)		(33)	(21)
Foreign Exchange Forward [Member] | Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	[1]	(5)	33
Foreign Exchange Forward [Member] | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss		20	16
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	[2]	(5)	(21)
Interest Rate Contract [Member] | Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	[1]	22	(69)
Interest Rate Contract [Member] | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss		(19)	(16)
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	[2]	(30)	(3)
Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months		4
Commodity Contract [Member] | Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
(Gains)/Losses Recognized in Income Statement (a)	[1]	3	4
Commodity Contract [Member] | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss		2
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	[2]	2	$ 3
Net Investment Hedging [Member] | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Losses/(Gains) Recognized in Accumulated Other Comprehensive Loss		$ 18

[1] Foreign exchange derivative losses/gains are primarily included in selling, general and administrative expenses. Interest rate derivative losses/gains are primarily from fair value hedges and are included in interest expense. These losses/gains are substantially offset by decreases/increases in the value of the underlying debt, which are also included in interest expense. Commodity derivative losses/gains are included in either cost of sales or selling, general and administrative expenses, depending on the underlying commodity.

[2] Foreign exchange derivative losses/gains are included in cost of sales. Interest rate derivative losses/gains are included in interest expense. Commodity derivative losses/gains are included in either cost of sales or selling, general and administrative expenses, depending on the underlying commodity.