Leases - Right of Use Assets and Lease Liabilities (Details) - USD ($) $ in Millions	Aug. 03, 2019	Feb. 02, 2019	Aug. 04, 2018
Lease Assets [Abstract]
Finance Lease, Right-of-Use Asset	$ 11
Operating Lease, Right-of-Use Asset	2,625
Right of Use Assets	2,636	$ 0	$ 0
Lease Liabilities, Current [Abstract]
Finance Lease, Liability, Current	1
Operating Lease, Liability, Current	350
Lease Liabilities, Noncurrent [Abstract]
Finance Lease, Liability, Noncurrent	24
Operating Lease, Liability, Noncurrent	2,812
Total Lease Liability	3,187
Accumulated Amortization, Finance Leases	12
Operating Lease Asset, Non-Lease Component	398
Operating Lease Liability, Non-Lease Component, Current	34
Operating Lease Liability, Non-Lease Component, Non-Current	$ 369