Comprehensive Income (Detail) (USD $) In Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Sep. 25, 2010	Oct. 01, 2011	Sep. 25, 2010	Dec. 25, 2010
Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 3,468	$ 2,955	$ 9,582	$ 8,284
Change in net unrealized holding gain (loss) on available-for-sale investments	(161)	137	(202)	175
Change in deferred tax asset valuation allowance	(54)	34	(68)	62
Change in net unrealized holding gain (loss) on derivatives	(134)	129	(29)	(45)
Change in net prior service cost	2		2	(40)
Change in net actuarial loss	6		(7)	(14)
Change in net foreign currency translation adjustment	(157)		(61)
Total comprehensive income	2,970	3,255	9,217	8,422
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated net unrealized holding gain (loss) on available-for-sale investments	199		199		401
Accumulated net change in deferred tax asset valuation allowance	135		135		203
Accumulated net unrealized holding gain (loss) on derivatives	98		98		127
Accumulated net prior service cost	(34)		(34)		(36)
Accumulated net actuarial loss	(369)		(369)		(362)
Accumulated net foreign currency translation adjustment	(61)		(61)
Total accumulated other comprehensive income (loss)	$ (32)		$ (32)		$ 333