CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025
Statement of Cash Flows [Abstract]
Cash, cash equivalents, and restricted cash and cash equivalents, beginning balances	$ 35,934	$ 29,943
Operating activities:
Net income	71,675	61,110
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	6,653	5,741
Share-based compensation expense	7,122	6,512
Other	(1,717)	(2,217)
Changes in operating assets and liabilities:
Accounts receivable, net	9,295	7,266
Vendor non-trade receivables	10,008	9,171
Inventories	(1,084)	858
Other current and non-current assets	(14,329)	(4,371)
Accounts payable	(12,297)	(14,604)
Other current and non-current liabilities	7,301	(15,579)
Cash generated by operating activities	82,627	53,887
Investing activities:
Purchases of marketable securities	(32,432)	(12,442)
Proceeds from maturities of marketable securities	18,691	26,587
Proceeds from sales of marketable securities	8,615	5,210
Payments for acquisition of property, plant and equipment	(4,344)	(6,011)
Other	(1,584)	(635)
Cash generated by/(used in) investing activities	(11,054)	12,709
Financing activities:
Payments for taxes related to net share settlement of equity awards	(3,252)	(3,205)
Payments for dividends and dividend equivalents	(7,743)	(7,614)
Repurchases of common stock	(36,989)	(49,504)
Repayments of term debt	(7,914)	(4,009)
Total repayments of commercial paper, net	(5,911)	(3,968)
Other	(126)	(77)
Cash used in financing activities	(61,935)	(68,377)
Increase/(Decrease) in cash, cash equivalents, and restricted cash and cash equivalents	9,638	(1,781)
Cash, cash equivalents, and restricted cash and cash equivalents, ending balances	45,572	28,162
Supplemental cash flow disclosure:
Cash paid for income taxes, net	$ 20,397	$ 31,683