CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Statement of Cash Flows [Abstract]
Cash, cash equivalents, and restricted cash and cash equivalents, beginning balances	$ 29,943	$ 30,737
Operating activities:
Net income	61,110	57,552
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	5,741	5,684
Share-based compensation expense	6,512	5,961
Other	(2,217)	(1,971)
Changes in operating assets and liabilities:
Accounts receivable, net	7,266	7,727
Vendor non-trade receivables	9,171	12,164
Inventories	858	53
Other current and non-current assets	(4,371)	(4,438)
Accounts payable	(14,604)	(16,710)
Other current and non-current liabilities	(15,579)	(3,437)
Cash generated by operating activities	53,887	62,585
Investing activities:
Purchases of marketable securities	(12,442)	(25,042)
Proceeds from maturities of marketable securities	26,587	27,462
Proceeds from sales of marketable securities	5,210	4,314
Payments for acquisition of property, plant and equipment	(6,011)	(4,388)
Other	(635)	(729)
Cash generated by investing activities	12,709	1,617
Financing activities:
Payments for taxes related to net share settlement of equity awards	(3,205)	(2,875)
Payments for dividends and dividend equivalents	(7,614)	(7,535)
Repurchases of common stock	(49,504)	(43,344)
Repayments of term debt	(4,009)	(3,150)
Repayments of commercial paper, net	(3,968)	(3,982)
Other	(77)	(132)
Cash used in financing activities	(68,377)	(61,018)
Increase/(Decrease) in cash, cash equivalents, and restricted cash and cash equivalents	(1,781)	3,184
Cash, cash equivalents, and restricted cash and cash equivalents, ending balances	28,162	33,921
Supplemental cash flow disclosure:
Cash paid for income taxes, net	$ 31,683	$ 14,531