CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Statement of Cash Flows [Abstract]
Cash, cash equivalents, and restricted cash and cash equivalents, beginning balances	$ 29,943	$ 30,737
Operating activities:
Net income	36,330	33,916
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	3,080	2,848
Share-based compensation expense	3,286	2,997
Other	(2,009)	(989)
Changes in operating assets and liabilities:
Accounts receivable, net	3,597	6,555
Vendor non-trade receivables	3,166	4,569
Inventories	215	(137)
Other current and non-current assets	939	(1,457)
Accounts payable	(6,671)	(4,542)
Other current and non-current liabilities	(11,998)	(3,865)
Cash generated by operating activities	29,935	39,895
Investing activities:
Purchases of marketable securities	(6,124)	(9,780)
Proceeds from maturities of marketable securities	15,967	13,046
Proceeds from sales of marketable securities	3,492	1,337
Payments for acquisition of property, plant and equipment	(2,940)	(2,392)
Other	(603)	(284)
Cash generated by investing activities	9,792	1,927
Financing activities:
Payments for taxes related to net share settlement of equity awards	(2,921)	(2,591)
Payments for dividends and dividend equivalents	(3,856)	(3,825)
Repurchases of common stock	(23,606)	(20,139)
Repayments of term debt	(1,009)	0
Repayments of commercial paper, net	(7,944)	(3,984)
Other	(35)	(46)
Cash used in financing activities	(39,371)	(30,585)
Increase in cash, cash equivalents, and restricted cash and cash equivalents	356	11,237
Cash, cash equivalents, and restricted cash and cash equivalents, ending balances	30,299	41,974
Supplemental cash flow disclosure:
Cash paid for income taxes, net	$ 18,651	$ 7,255