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Share-Based Compensation - Schedule of Stock Option Exercises (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Cash received for exercise price $ 303 $ 374 $ 422
Intrinsic value 159 143 197
Income tax benefit $ 77 $ 41 $ 77