Shareholders' Equity (Deficit) (Dividends Paid) (Details) - USD ($) $ / shares in Units, $ in Millions	2 Months Ended	3 Months Ended												12 Months Ended
	Mar. 20, 2020	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Common Stock, Dividends, Per Share, Cash Paid		$ 0.30	$ 0.30	$ 0.30	$ 0.30	$ 0.60	$ 0.60	$ 0.60	$ 0.60	$ 0.60	$ 0.60	$ 0.60	$ 0.60	$ 1.20	$ 2.40	$ 2.40
Payments of Dividends		$ 83	$ 83	$ 83	$ 83	$ 166	$ 165	$ 167	$ 168	$ 170	$ 172	$ 172	$ 172	$ 332	$ 666	$ 686
Common Stock, Dividends, Per Share, Declared														$ 1.20	$ 2.40	$ 2.40
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared	$ 0.30