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Shareholders' Equity Repurchase of Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 29, 2018 | Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016 | Feb. 27, 2017 | Jun. 30, 2011
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Current Two Year Projection of Share Repurchases, Value |  |  | $ 3,500 |  |  |  |
Prior Two Year Projection of Share Repurchases, Value |  |  | 3,000 |  |  |  |
Accelerated Share Repurchase Price (low end of the range) |  |  | 150 |  |  |  |
Accelerated Share Repurchase Price (high end of the range) |  |  | $ 175 |  |  |  |
Prepaid repurchase of common stock |  |  |  |  | $ 55 |  |
Accelerated Share Repurchase Settlement Amount |  |  |  | $ 165 |  |  |
Stock Repurchased and Retired at ASR Settlement, Shares |  |  | 1.6 |  |  |  |
Accelerated Share Repurchases, Description of Adjustment to Initial Price Paid |  |  | $ 10 |  |  |  |
Open market [Domain] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Average price per share |  |  | $ 57.16 | $ 36.11 | $ 31.03 |  |
Number of share repurchased and retired |  |  | 35.1 | 19.5 | 28.4 |  |
Unsettled shares, cost |  |  | $ 13 | $ 8 |  |  |
Unsettled shares, shares |  |  | 0.2 | 0.1 |  |  |
Total cost of shares repurchased |  |  | $ 2,009 | $ 706 | $ 880 |  |
January 2016 ASR [Domain] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Average price per share |  |  | $ 0.00 | $ 28.55 | $ 27.28 |  |
Number of share repurchased and retired |  |  | 0.0 | 1.6 | 4.4 |  |
Total cost of shares repurchased |  |  | $ 0 | $ 45 | $ 120 |  |
Total share repurchases [Domain] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Average price per share |  |  | $ 57.16 | $ 35.54 | $ 30.53 |  |
Number of share repurchased and retired |  |  | 35.1 | 21.1 | 32.8 |  |
Total cost of shares repurchased |  |  | $ 2,009 | $ 751 | $ 1,000 |  |
February 2017 share repurchase program [Member] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  | $ 5,000 |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  | $ 3,000 |  |  |  |
June 2011 share repurchase program [Member} |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  | $ 5,000
Total share repurchases [Domain] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Number of share repurchased and retired | 3.5 |  |  |  |  |  |
Total cost of shares repurchased | $ 249 |  |  |  |  |  |
Scenario, Forecast [Member] |  |  |  |  |  |  |
Stock Repurchases [Line Items] |  |  |  |  |  |  |
Future Intended Share Repurchase Amount, Value |  | $ 1,500 |  |  |  |  |

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