Earnings Per Share And Shareholders' Equity (Dividends) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Nov. 02, 2019	Nov. 03, 2018
Earnings Per Share And Shareholders' Equity [Abstract]
Ordinary Dividends	$ 0.30	$ 0.30	$ 0.30	$ 0.60	$ 0.60	$ 0.60	$ 0.90	$ 1.80
Payments of Dividends	$ 83	$ 83	$ 83	$ 165	$ 167	$ 168	$ 249	$ 500