Segment Information - Revenue and Long-lived Assets by Region (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 25, 2026	Jan. 26, 2025	Jan. 28, 2024
Revenues and Long-Lived Assets
Total revenue	$ 215,938	$ 130,497	$ 60,922
Total long-lived assets	10,383	6,283
United States
Revenues and Long-Lived Assets
Total revenue	149,617	77,482	31,533
Total long-lived assets	5,125	3,626
Taiwan
Revenues and Long-Lived Assets
Total revenue	42,345	23,600	14,912
Total long-lived assets	$ 3,219	1,481
Taiwan | Revenue | Customer Concentration Risk | United States And Europe Based End Customers
Revenues and Long-Lived Assets
Concentration risk (as percent)	76.00%
China (including Hong Kong)
Revenues and Long-Lived Assets
Total revenue	$ 19,677	25,048	12,330
Israel
Revenues and Long-Lived Assets
Total long-lived assets	1,471	840
Other
Revenues and Long-Lived Assets
Total revenue	4,299	4,367	$ 2,147
Total long-lived assets	$ 568	$ 336