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Share Repurchase (Details) (USD $)
Share data in Millions, except Per Share data |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
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Jul. 30, 2011
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Apr. 30, 2011
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Jul. 31, 2010
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May 01, 2010
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Jul. 30, 2011
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Jul. 31, 2010
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Jan. 29, 2011
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| Share Repurchase Information | |||||||
| Amount approved by board of directors for share repurchase program | $ 10,000,000,000 | ||||||
| Total Number of Shares Purchased (in shares) | 14.3 | 15.4 | 17.6 | 7.5 | 29.7 | 25.1 | |
| Repurchase of stock, average price per share (in dollars per share) | $ 48.11 | $ 53.32 | $ 51.72 | $ 52.27 | $ 50.81 | $ 51.89 | |
| Total Investment | 688,000,000 | 819,000,000 | 907,000,000 | 394,000,000 | 1,507,000,000 | 1,301,000,000 | |
| Stock repurchased, delivered upon settlement of prepaid forward contracts (in shares) | 0.2 | 0.1 | 0.3 | 0.3 | 0.3 | ||
| Repurchase of stock | 1,507,000,000 | 2,514,000,000 | |||||
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Cash investment
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| Share Repurchase Information | |||||||
| Repurchase of stock | 7,000,000 | 7,000,000 | 15,000,000 | 14,000,000 | 15,000,000 | ||
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Prepaid forward contracts market value
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| Share Repurchase Information | |||||||
| Stock repurchased, delivered upon settlement of prepaid forward contracts | $ 7,000,000 | $ 7,000,000 | $ 16,000,000 | $ 14,000,000 | $ 16,000,000 | ||