Revenue Recognition (Allowance for Doubtful Accounts Related to Contracts with Customers) (Details) - USD ($) $ in Millions		3 Months Ended
		May 04, 2019	May 05, 2018
Revenue Recognition [Abstract]
Balances		$ 13	$ 24
Charged to expenses or other accounts		10	11
Other	[1]	(11)	(9)
Balances		$ 12	$ 26

[1] Includes bad debt write-offs, recoveries and the effect of foreign currency fluctuations.