Balance Sheet Components - Property and Equipment (Details) - USD ($) $ in Millions	Jan. 25, 2026	Jan. 26, 2025
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 16,970	$ 10,684
Accumulated depreciation and amortization	(6,587)	(4,401)
Total property and equipment, net	$ 10,383	6,283
Minimum
Property, Plant and Equipment [Line Items]
Property, plant & equipment, useful life (up to)	2 years
Maximum
Property, Plant and Equipment [Line Items]
Property, plant & equipment, useful life (up to)	7 years
Land
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 777	511
Buildings, leasehold improvements, and furniture
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	2,891	2,076
Equipment, compute hardware, and software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 12,619	7,568
Equipment, compute hardware, and software | Minimum
Property, Plant and Equipment [Line Items]
Property, plant & equipment, useful life (up to)	2 years
Equipment, compute hardware, and software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant & equipment, useful life (up to)	7 years
Construction in process
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 683	$ 529
Buildings
Property, Plant and Equipment [Line Items]
Property, plant & equipment, useful life (up to)	30 years