Leases - Schedule of other lease information (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2022	Jan. 31, 2021	Jan. 26, 2020
Lessee, Lease, Description [Line Items]
Operating cash flows used for operating leases	$ 154	$ 141	$ 103
Operating lease assets obtained in exchange for lease obligations	$ 266	200	$ 238
Mellanox Technologies, Ltd
Lessee, Lease, Description [Line Items]
Operating lease assets obtained in exchange for lease obligations		$ 80