Earnings Per Share And Shareholders' Equity (Dividends) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Aug. 01, 2015	May. 02, 2015	Aug. 02, 2014	May. 03, 2014	Aug. 01, 2015	Aug. 02, 2014
Earnings Per Share And Shareholders' Equity [Abstract]
Ordinary Dividends	$ 0.50	$ 0.5	$ 0.34	$ 0.34	$ 1	$ 0.68
Special Dividends	0	2	0	1	2	1
Total Dividends	$ 0.5	$ 2.50	$ 0.34	$ 1.34	$ 3	$ 1.68
Total Paid	$ 146	$ 734	$ 99	$ 392	$ 880	$ 491