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Commitments And Contingencies (Details) - USD ($)
$ in Millions
3 Months Ended
Oct. 31, 2015
Jan. 31, 2015
Nov. 01, 2014
Sale Leaseback Transaction, Other Information 105    
Property Lease Guarantee [Member]      
Lease guarantees remaining after disposition of certain businesses $ 16    
Property Lease Guarantee [Member] | Express Limited Stores And New York And Company [Member]      
Lease guarantees remaining after disposition of certain businesses 6 $ 11 $ 14
Lease guarantees, estimated fair value $ 0 $ 1 $ 1