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Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jan. 28, 2017 | Jan. 30, 2016 | Feb. 03, 2018 | Feb. 26, 2016 | Jan. 31, 2015
Class of Stock [Line Items] |  |  |  |  |
Preferred stock, shares authorized |  |  | 125,000 |  |
Preferred stock, par value |  |  | $ 0.01 |  |
Preferred stock, shares issued |  |  | 0 |  |
Common stock, shares authorized |  |  | 1,000,000 |  |
Common stock, par value |  |  | $ 0.01 |  |
Common stock, shares issued | 333,606 | 341,606 | 333,606 |  | 379,606
Common stock, shares outstanding | 304,063 | 310,256 | 304,765 |  | 340,574
Stock Repurchased and Retired During Period, Shares | 0 | 0 |  |  |
Stock Repurchase Program, Additional Authorized Amount |  |  |  | $ 1,500 |
Stock repurchase program authorized amount |  |  | $ 18,000 |  |
Stock repurchased during period, shares | 7,874 | 34,807 |  |  |
Stock repurchased during period, value | $ 316 | $ 2,000 |  |  |
Stock repurchase program remaining authorized repurchase amount |  |  | $ 1,716 |  |

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