Tax Matters (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Income Tax Disclosure [Abstract]
Foreign currency translation adjustments, net	[1]	$ 0	$ (7)	$ (15)	$ 90
Unrealized holding losses on derivative financial instruments, net		0	(57)	(192)	(160)
Reclassification adjustments for realized (gains)/losses		32	15	81	43
Derivatives qualifying as hedges, tax, total		32	(42)	(112)	(117)
Unrealized holding gains/(losses) on available-for-sale securities, net		40	6	106	(63)
Reclassification adjustments for realized (gains)/losses		(14)	1	(16)	63
Available-for-sale securities, tax, total		26	7	90	0
Benefit plans: actuarial losses, net		(31)	(51)	(39)	(43)
Reclassification adjustments related to amortization		47	43	140	133
Reclassification adjustments related to settlements, net		10	12	27	35
Other		14	(9)	5	29
Defined benefit plans, actuarial gain (loss), tax, total		40	(4)	133	154
Benefit plans: prior service credits and other, net		35	(4)	66	188
Reclassification adjustments related to amortization		(17)	(36)	(47)	(42)
Reclassification adjustments related to curtailments, net		(3)	18	(5)	(8)
Other		2	2	1	2
Pension and other postretirement benefit plans, net prior service cost (credit), tax		18	(19)	15	139
Tax provision/(benefit) on other comprehensive income/(loss)	[2],[3]	$ 116	$ (65)	$ 111	$ 267

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

[2] Amounts may not add due to rounding.

[3] See Note 5C. Tax Matters: Tax Provision/(Benefit) on Other Comprehensive Income/(Loss).