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Earnings Per Share And Shareholders' Equity (Dividends) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Aug. 04, 2018
May 05, 2018
Jul. 29, 2017
Apr. 29, 2017
Aug. 04, 2018
Jul. 29, 2017
Earnings Per Share And Shareholders' Equity [Abstract]            
Ordinary Dividends $ 0.6 $ 0.60 $ 0.6 $ 0.60 $ 1.20 $ 1.20
Payments of Dividends $ 167 $ 168 $ 172 $ 172 $ 335 $ 344