Tax Matters (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2013		Sep. 30, 2012		Sep. 29, 2013		Sep. 30, 2012
Tax Expense/(Benefit) on Other Comprehensive Income/(Loss)
Foreign currency translation adjustments(a)	$ (2)	[1]	$ (23)	[1]	$ 88	[1]	$ 14	[1]
Unrealized holding gains on derivative financial instruments	205		137		152		80
Reclassification adjustments for realized gains	(132)		(52)		(43)		(34)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Total	73		85		109		46
Unrealized holding gains/(losses) on available-for-sale securities	(16)		4		32		17
Reclassification adjustments for realized (gains)/losses	(14)		3		(19)		8
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Total	(30)		7		13		25
Benefit plans: actuarial gains/(losses), net	(1)		(39)		10		(157)
Reclassification adjustments related to amortization	49		44		155		129
Reclassification adjustments related to curtailments/settlements, net	18		20		54		59
Foreign currency translation adjustments and other	(23)		(12)		35		5
Other Comprehensive Income Defined Benefit Plans Actuarial Gain Loss Tax Effect Period Decrease Increase	43		13		254		36
Benefit plans: prior service (costs)/credits and other	0		(2)		1		6
Reclassification adjustments related to amortization	(5)		(7)		(17)		(21)
Reclassification adjustments related to curtailments/settlements, net	0		(2)		(4)		(34)
Other	1		2		(1)		0
Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Tax Effect Period Decrease Increase	(4)		(9)		(21)		(49)
Tax provision on other comprehensive income/(loss)	$ 80	[2]	$ 73	[2]	$ 443	[2]	$ 72	[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 Income/(Loss).