CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 26, 2022	Mar. 27, 2021
Statement of Cash Flows [Abstract]
Cash, cash equivalents and restricted cash, beginning balances	$ 35,929	$ 39,789
Operating activities:
Net income	59,640	52,385
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	5,434	5,463
Share-based compensation expense	4,517	4,001
Deferred income tax expense/(benefit)	1,088	(207)
Other	(20)	(474)
Changes in operating assets and liabilities:
Accounts receivable, net	5,542	(2,347)
Inventories	1,065	(1,226)
Vendor non-trade receivables	643	6,792
Other current and non-current assets	(3,542)	(4,333)
Accounts payable	(1,750)	(1,997)
Deferred revenue	627	1,642
Other current and non-current liabilities	1,888	3,045
Cash generated by operating activities	75,132	62,744
Investing activities:
Purchases of marketable securities	(61,987)	(74,424)
Proceeds from maturities of marketable securities	18,000	39,605
Proceeds from sales of marketable securities	24,668	21,645
Payments for acquisition of property, plant and equipment	(5,317)	(5,769)
Payments made in connection with business acquisitions, net	(167)	(9)
Other	(568)	0
Cash used in investing activities	(25,371)	(18,952)
Financing activities:
Payments for taxes related to net share settlement of equity awards	(3,218)	(3,160)
Payments for dividends and dividend equivalents	(7,327)	(7,060)
Repurchases of common stock	(43,109)	(43,323)
Proceeds from issuance of term debt, net	0	13,923
Repayments of term debt	(3,750)	(4,500)
Proceeds from commercial paper, net	999	22
Other	(105)	523
Cash used in financing activities	(56,510)	(43,575)
Increase/(Decrease) in cash, cash equivalents and restricted cash	(6,749)	217
Cash, cash equivalents and restricted cash, ending balances	29,180	40,006
Supplemental cash flow disclosure:
Cash paid for income taxes, net	9,301	10,276
Cash paid for interest	$ 1,406	$ 1,327