Provision for Income Taxes (Detail) (USD $) In Millions	12 Months Ended
	Sep. 24, 2011	Sep. 25, 2010	Sep. 26, 2009
Federal:
Current	$ 3,884	$ 2,150	$ 1,922
Deferred	2,998	1,676	1,077
Federal Income Tax Expense (Benefit), Continuing Operations, Total	6,882	3,826	2,999
State:
Current	762	655	524
Deferred	37	(115)	(2)
State and Local Income Tax Expense (Benefit), Continuing Operations, Total	799	540	522
Foreign:
Current	769	282	345
Deferred	(167)	(121)	(35)
Foreign Income Tax Expense (Benefit), Continuing Operations, Total	602	161	310
Provision for income taxes	$ 8,283	$ 4,527	$ 3,831