Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Stock Awards) (Details)

v3.3.1.900
Stock-Based Compensation (Stock Awards) (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Mar. 20, 2014
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock awards vested in period, aggregate market value   $ 16 $ 4 $ 25
Stock awards, aggregate grant date fair value   27 $ 9 $ 42
Deferred Compensation Liability, Current and Noncurrent   $ 17    
Phantom Share Units (PSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 2,500,000      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Maximum Award Settlement, Per Share $ 15.54      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Outstanding, Grant Date Fair Value   $ 7.26    
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation expense   $ 50    
Weighted average period over which unrecognized compensation is expected to be recognized (years)   2 years    
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Outstanding, Grant Date Fair Value   $ 8.64    
Director [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   154,000