Leases (Components Of Lease Cost) (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Nov. 02, 2019	Nov. 02, 2019
Leases [Abstract]
Operating lease cost		$ 70	$ 209
Variable lease cost	[1]	10	34
Sublease income		(4)	(8)
Total lease cost		$ 76	$ 235

[1] Variable lease cost includes short-term lease cost, which was immaterial for the quarter and nine months ended November 2, 2019.