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Repurchase of Common Stock (Tables) | 6 Months Ended
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Jul. 29, 2017
Equity [Abstract] |
Schedule of Repurchases of Common Stock [Table Text Block] | The following table presents information regarding the shares we repurchased during the three and six months ended July 29, 2017, and July 30, 2016 ($ and shares in millions, except per share amounts):
| Three Months Ended |  | Six Months Ended
| July 29, 2017 |  | July 30, 2016 |  | July 29, 2017 |  | July 30, 2016
Total cost of shares repurchased |  |  |  |  |  |  |
Open market(1) | $ | 397 |  |  | $ | 221 |  |  | $ | 781 |  |  | $ | 277 |
Settlement of January 2016 ASR(2) | — |  |  | — |  |  | — |  |  | 45 |
Total | $ | 397 |  |  | $ | 221 |  |  | $ | 781 |  |  | $ | 322 |
Average price per share |  |  |  |  |  |  |
Open market | $ | 55.07 |  |  | $ | 30.65 |  |  | $ | 50.38 |  |  | $ | 30.98 |
Settlement of January 2016 ASR(2) | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 28.55 |
Average | $ | 55.07 |  |  | $ | 30.65 |  |  | $ | 50.38 |  |  | $ | 30.62 |
Number of shares repurchased and retired |  |  |  |  |  |  |
Open market(1) | 7.2 |  |  | 7.2 |  |  | 15.5 |  |  | 8.9 |
Settlement of January 2016 ASR(2) | — |  |  | — |  |  | — |  |  | 1.6 |
Total | 7.2 |  |  | 7.2 |  |  | 15.5 |  |  | 10.5 |
(1) | As of July 29, 2017, $18 million, or 0.3 million shares, in trades remained unsettled. As of July 30, 2016, $6 million, or 0.2 million shares, in trades remained unsettled. The liability for unsettled trades is included in Accrued liabilities in the Condensed Consolidated Balance Sheets.
(2) | See Note 7, Shareholders' Equity, in the Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended January 28, 2017, for additional information regarding the January 2016 ASR.

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- Definition Tabular disclosure related to repurchases of common stock under share repurchase program. + References No definition available. + Details
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