Tax Matters (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jul. 01, 2012		Jun. 30, 2013		Jul. 01, 2012
Tax Expense/(Benefit) on Other Comprehensive Income/(Loss)
Foreign currency translation adjustments	$ 19	[1]	$ (30)	[1]	$ 90	[1]	$ 37	[1]
Unrealized holding gains/(losses) on derivative financial instruments	104		(216)		(53)		(57)
Reclassification adjustments for realized (gains)/losses	(55)		133		89		18
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Total	49		(83)		36		(39)
Unrealized gains/(losses) on available-for-sale securities	35		(1)		48		13
Reclassification adjustments for realized (gains)/losses	(3)		(2)		(5)		5
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Total	32		(3)		43		18
Benefit plans: Actuarial gains/(losses)	5		(118)		11		(118)
Reclassification adjustments related to amortization	52		41		106		85
Reclassification adjustments related to curtailments/settlements, net	16		(4)		36		39
Foreign currency translation adjustments other	21		18		58		17
Other Comprehensive Income Defined Benefit Plans Actuarial Gain Loss Tax Effect Period Decrease Increase	94		(63)		211		23
Benefit plan: Prior service (costs)/credits and other	2		8		1		8
Reclassification adjustments related to amortization	(6)		(6)		(12)		(14)
Reclassification adjustments related to curtailments and settlements, net	(1)		(28)		(4)		(32)
Other	(2)		0		(2)		(2)
Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Tax Effect Period Decrease Increase	(7)		(26)		(17)		(40)
Tax provision (benefit) on other comprehensive income/(loss)	$ 187	[2]	$ (205)	[2]	$ 363	[2]	$ (1)	[2]

[1] Taxes are not provided for foreign currency translation adjustments relating to investments in international subsidiaries that will be held indefinitely.

[2] See Note 5C. Tax Matters: Taxes on Items of Other Comprehensive Loss.