Leases - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 31, 2019	Nov. 02, 2019	Nov. 02, 2019	Nov. 03, 2018
Leases [Line Items]
Operating lease option to extend reasonably certain of being exercised		$ 2,900	$ 2,900
Finance lease option to extend reasonably certain of being exercised		1,500	1,500
Gain on extinguishment of debt	$ 9	$ 9	$ 9	$ (42)
Store [Member]
Leases [Line Items]
Lease extension term			5 years
Minimum [Member] | Store [Member]
Leases [Line Items]
Lease initial term			20 years
Lease renewal term			4 years
Maximum [Member] | Store [Member]
Leases [Line Items]
Lease initial term			25 years
Lease renewal term			8 years