Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 24, 2022
Deferred tax assets:
Tax credit carryforwards	$ 8,302	$ 6,962
Accrued liabilities and other reserves	6,365	6,515
Capitalized research and development	6,294	1,267
Deferred revenue	4,571	5,742
Unrealized losses	2,447	2,913
Lease liabilities	2,421	2,400
Other	2,343	3,407
Total deferred tax assets	32,743	29,206
Less: Valuation allowance	(8,374)	(7,530)
Total deferred tax assets, net	24,369	21,676
Deferred tax liabilities:
Right-of-use assets	2,179	2,163
Depreciation	1,998	1,582
Minimum tax on foreign earnings	1,940	1,983
Unrealized gains	511	942
Other	490	469
Total deferred tax liabilities	7,118	7,139
Net deferred tax assets	$ 17,251	$ 14,537