Earnings Per Share And Shareholders' Equity (Dividends) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Jul. 30, 2016	Apr. 30, 2016	Aug. 01, 2015	May 02, 2015	Jul. 30, 2016	Aug. 01, 2015
Earnings Per Share And Shareholders' Equity [Abstract]
Ordinary Dividends	$ 0.60	$ 0.60	$ 0.50	$ 0.5	$ 1.2	$ 1
Special Dividends	0	2	0	2	2	2
Total Dividends	$ 0.6	$ 2.6	$ 0.5	$ 2.5	$ 3.2	$ 3
Total Paid	$ 173	$ 750	$ 146	$ 734	$ 923	$ 880