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Basis of Presentation Discontinued Operations (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 03, 2018
Oct. 28, 2017
Nov. 03, 2018
Oct. 28, 2017
Discontinued Operations and Disposal Groups [Abstract]        
Gain from discontinued operations (Note 1), net of tax $ 0 $ 1 $ 0 $ 1