Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Aug. 03, 2019	Aug. 03, 2019
Leases [Abstract]
Operating Lease, Expense, Non-Lease Component	$ 21	$ 42
Variable Lease, Cost	3	7
Operating Lease, Expense	106	214
Sublease Income	(1)	(1)
Net lease expense	$ 105	$ 213