Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2024	Jan. 29, 2023	Jan. 30, 2022
Income Tax Contingency [Line Items]
Valuation allowance	$ 1,552	$ 1,484
Deferred tax assets	8,000	5,154
Deferred tax liabilities	831	522
Unrecognized tax benefits that would affect effective tax rate	1,000
Interest and taxes recognized related to unrecognized tax benefits	42	33	$ 14
Interest and penalties accrued	140	95
Other long-term liabilities
Income Tax Contingency [Line Items]
Deferred tax liabilities	462	247
Deferred tax assets, noncurrent
Income Tax Contingency [Line Items]
Deferred tax assets	6,100	$ 3,400
Israel | Mellanox Technologies, Ltd
Income Tax Contingency [Line Items]
Undistributed earnings of foreign subsidiaries	1,100
United Kingdom | Mellanox Technologies, Ltd
Income Tax Contingency [Line Items]
Undistributed earnings of foreign subsidiaries	250
Federal
Income Tax Contingency [Line Items]
Net operating loss carryforwards	315
Research tax credit carryforwards	31
Federal | Capital Loss Carryforward
Income Tax Contingency [Line Items]
Federal capital loss carryforwards	1,400
Foreign Country
Income Tax Contingency [Line Items]
Net operating loss carryforwards	361
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss carryforwards	342
Research tax credit carryforwards	1,600
California
Income Tax Contingency [Line Items]
Research tax credit carryforwards	1,500
Other states
Income Tax Contingency [Line Items]
Research tax credit carryforwards	$ 75