Earnings Per Share And Shareholders' Equity (Schedule of Company's Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended	9 Months Ended
	Nov. 03, 2018	Nov. 03, 2018	Nov. 02, 2019	May 05, 2018	Oct. 28, 2017
Shares Repurchased (in shares)		5,379
Amount Repurchased	$ 10	$ 196
March 2018 Repurchase Program [Member]
Amount Authorized				$ 250
Shares Repurchased (in shares)		4,852
Amount Repurchased		$ 171
Average Stock Price of Shares Repurchased within Program (in dollars per share)		$ 35.29
Remaining authorized repurchase amount			$ 79
September 2017 Repurchase Program [Member]
Amount Authorized					$ 250
Shares Repurchased (in shares)		527
Amount Repurchased		$ 25
Average Stock Price of Shares Repurchased within Program (in dollars per share)		$ 46.98
Remaining authorized repurchase amount				$ 23