Leases (Other Information) (Details) $ in Millions	12 Months Ended
	Feb. 01, 2020 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 810
Operating cash flows from finance leases	2
Financing cash flows from finance leases	15
Lease assets obtained in exchange for new lease liabilities:
Operating leases	676
Finance leases	$ 10
Weighted average remaining lease term:
Operating leases	5 years 3 months 18 days
Finance leases	5 years
Weighted average discount rate:
Operating leases	3.30%
Finance leases	4.20%