Other Assets (Tables)
12 Months Ended
Jan. 31, 2015
Other Assets, Noncurrent [Abstract]  
Schedule of Other Assets
($ in millions)
2014
 
2013
Capitalized software, net
$
230

 
$
267

Indefinite-lived intangible assets, net(1)
268

 
268

Realty investments (Note 16)
26

 
4

Debt issuance costs, net
82

 
92

Revolving credit facility issuance costs, net
62

 
23

Other
37

 
32

Total
$
705

 
$
686

 

(1)
Amounts are net of an accumulated impairment loss of $9 million which was recorded in 2013 (Note 8 and Note 16) in the line item Real estate and other, net in the Consolidated Statements of Operations.