CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 26, 2011
Cash and cash equivalents, beginning of the period	$ 9,815	$ 11,261
Operating activities:
Net income	24,686	11,991
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation, amortization and accretion	1,461	790
Share-based compensation expense	844	586
Deferred income tax expense	2,915	1,563
Changes in operating assets and liabilities:
Accounts receivable, net	(1,663)	(288)
Inventories	(326)	121
Vendor non-trade receivables	(379)	(883)
Other current and non-current assets	(1,510)	(1,886)
Accounts payable	2,809	1,626
Deferred revenue	1,916	698
Other current and non-current liabilities	778	1,674
Cash generated by operating activities	31,531	15,992
Investing activities:
Purchases of marketable securities	(85,022)	(42,260)
Proceeds from maturities of marketable securities	7,702	10,211
Proceeds from sales of marketable securities	49,052	21,705
Payments made in connection with business acquisitions, net of cash acquired	(350)	0
Payments for acquisition of property, plant and equipment	(2,778)	(1,838)
Payments for acquisition of intangible assets	(160)	(81)
Other	(48)	12
Cash used in investing activities	(31,604)	(12,251)
Financing activities:
Proceeds from issuance of common stock	377	494
Excess tax benefits from equity awards	636	740
Taxes paid related to net share settlement of equity awards	(634)	(258)
Cash generated by financing activities	379	976
Increase in cash and cash equivalents	306	4,717
Cash and cash equivalents, end of the period	10,121	15,978
Supplemental cash flow disclosure:
Cash paid for income taxes, net	$ 4,835	$ 1,913