Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	Jan. 25, 2026	Jan. 26, 2025
Deferred tax assets:
Capitalized research and development expenditure	$ 5,436	$ 6,256
Net controlled foreign corporation tested income deferred tax assets	5,389	2,820
Accruals and reserves, not currently deductible for tax purposes	3,644	2,058
Research and other tax credit carryforwards	718	759
Operating lease liabilities	554	299
Net operating loss and capital loss carryforwards	443	456
Other deferred tax assets	679	566
Gross deferred tax assets	16,863	13,214
Less valuation allowance	(768)	(1,610)
Total deferred tax assets	16,095	11,604
Deferred tax liabilities:
Equity investments	(2,227)	(264)
Unremitted earnings of foreign subsidiaries	(1,813)	(891)
Operating lease assets	(533)	(286)
Acquired intangibles	(38)	(70)
Gross deferred tax liabilities	(4,611)	(1,511)
Net deferred tax asset	$ 11,484	$ 10,093