Stockholders' Equity Stockholders' Equity (Common Stock) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
0 Months Ended 3 Months Ended 9 Months Ended
Oct. 01, 2013
Nov. 01, 2014
Nov. 02, 2013
Nov. 01, 2014
Nov. 02, 2013
Feb. 01, 2014
Equity [Abstract]            
Stock Issued During Period, Shares, New Issues 84          
Common stock issued, par value per share $ 0.50 $ 0.50 $ 0.5 $ 0.50 $ 0.5 $ 0.50
Sale of Stock, Price Per Share $ 9.65          
Net proceeds from common stock issued $ 786 $ 0 $ 786 $ 0 $ 786  
Payments of Stock Issuance Costs $ 24