Property and Leases - Schedule of assets and liabilities related to operating and finance leases (Details) - USD ($) $ in Millions	Jul. 31, 2022	Jan. 30, 2022
Assets
Operating lease assets	$ 6,132	$ 5,968
Finance lease assets	2,923	2,896
Total lease assets	9,055	8,864
Current:
Operating lease liabilities	919	830
Finance lease liabilities	219	198
Long-term:
Operating lease liabilities	5,431	5,353
Finance lease liabilities	3,082	3,038
Total lease liabilities	9,651	9,419
Finance lease asset accumulated amortization	$ 1,100	$ 1,000