Shareholders' Equity (Details) - USD ($) shares in Millions, $ in Millions |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Jan. 29, 2016 |
Jan. 30, 2015 |
Jan. 31, 2014 |
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| Shareholders' Equity | ||||||||
| Reduction in retained earnings | $ 3,600 | $ 3,600 | ||||||
| Share Repurchases | ||||||||
| Share repurchases, value | $ 3,878 | [1] | $ 3,927 | [1] | $ 3,770 | |||
| Share repurchases, shares | 54.5 | 74.7 | ||||||
| Share Repurchase Program [Member] | ||||||||
| Share Repurchases | ||||||||
| Share repurchases, value | [1] | $ 3,811 | $ 3,880 | |||||
| Share repurchases, shares | 53.6 | 73.8 | ||||||
| Shares Withheld from Employees [Member] | ||||||||
| Share Repurchases | ||||||||
| Share repurchases, value | [1] | $ 67 | $ 47 | |||||
| Share repurchases, shares | 0.9 | 0.9 | ||||||
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