Leases - Summary of Future Lease Payments (Details) $ in Millions	Feb. 01, 2020 USD ($)
Leases [Abstract]
Operating Leases, 2020	$ 303
Operating Leases, 2021	303
Operating Leases, 2022	291
Operating Leases, 2023	276
Operating Leases, 2024	241
Operating Leases, After 2023	3,426
Total lease payments, Operating Leases	4,840
Amount representing interest, Operating Leases	(2,063)
Lease liabilities, Operating Leases	2,777
Finance Leases, 2020	181
Finance Leases, 2021	162
Finance Leases, 2022	145
Finance Leases, 2023	124
Finance Leases, 2024	110
Finance Leases, After 2023	1,750
Total lease payments, Finance Leases	2,472
Amount representing interest, Finance Leases	(1,507)
Lease liabilities, Finance Leases	965
2020	484
2021	465
2022	436
2023	400
2024	351
After 2024	5,176
Total lease payments	7,312
Amount representing interest	(3,570)
Lease liabilities	$ 3,742