Fair Values of Financial Assets and Liabilities (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 25, 2017	Mar. 19, 2016	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax		$ 83		$ 72
Short-term Investments		6,461		6,967
Prepaid forward contracts		27		25
Deferred compensation		483		472
Derivatives not designated as hedging instruments:
Total derivatives at fair value		139		182
Total Financial Assets at fair value		12,425		11,851
Derivatives not designated as hedging instruments:
Total derivatives at fair value		528		529
Total Financial Liabilities at fair Value		1,011		1,001
Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax		20	$ (32)
Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		21	0
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)		(33)	(21)
Derivatives Designated As Fair Value Hedging Instruments Assets
Derivatives designated as fair value hedging instruments:
Interest rate derivatives		54		66
Derivatives Designated As Hedging Instruments Assets
Derivatives designated as cash flow hedging instruments:
Foreign exchange contracts		30		51
Interest rate derivatives		0		0
Commodity contracts		1		2
Derivatives designated as hedging instruments, Assets, Total		31		53
Derivatives Not Designated As Hedging Instruments Assets
Derivatives not designated as hedging instruments:
Foreign exchange contracts		0		2
Commodity contracts		54		61
Derivatives not designated as hedging instruments, Assets, Total		54		63
Derivatives Designated As Fair Value Hedging Instruments Liabilities
Derivatives designated as fair value hedging instruments:
Interest rate derivatives		81		71
Derivatives Designated As Hedging Instruments Liabilities
Derivatives designated as cash flow hedging instruments:
Foreign exchange contracts		16		8
Interest rate derivatives		389		408
Commodity contracts		1		1
Derivatives designated as hedging instruments, Liabilities, Total		406		417
Derivatives Not Designated As Hedging Instruments Liabilities
Derivatives not designated as hedging instruments:
Foreign exchange contracts		9		15
Commodity contracts		32		26
Derivatives not designated as hedging instruments, Liabilities, Total		41		41
Foreign Exchange Forward [Member] | Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	(5)	33
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		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]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	22	(69)
Interest Rate Contract [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(19)	(16)
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	[2]	(30)	(3)
Commodity contracts | Fair Value/Non-designated Hedges
Derivatives, Fair Value [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	3	4
Commodity contracts | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		2
Losses/(Gains) Reclassified from Accumulated Other Comprehensive Loss into Income Statement (b)	[2]	2	$ 3
Net Investment Hedging [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		18
Liability [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		0		0
Assets [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		11,964		11,369
Assets [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		93		82
Liability [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		0		0
Liability [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		0		0
Assets [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		12,057		11,451
Liability [Member]
Derivatives, Fair Value [Line Items]
Short-term Investments		0		0
Assets [Member]
Derivatives, Fair Value [Line Items]
Short-term Investments		202		193
Liability [Member]
Derivatives, Fair Value [Line Items]
Prepaid forward contracts		0		0
Assets [Member]
Derivatives, Fair Value [Line Items]
Deferred compensation		0		0
Cash Equivalents [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		5,700		4,600
Short-term Investments [Member]
Derivatives, Fair Value [Line Items]
Available-for-sale securities		$ 6,300		$ 6,800

[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.