Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation (Additional Information Relating To Stock Options) (Details)

v3.7.0.1
Stock Based Compensation (Additional Information Relating To Stock Options) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Share-based Compensation [Abstract]      
Intrinsic value of options exercised $ 12 $ 127 $ 189
Cash received from stock options exercised $ 35 $ 125 $ 200