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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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Feb. 03, 2019 | Jan. 28, 2018 | Jan. 29, 2017
Income Taxes [Line Items] |  |  |
Federal statutory rate | 21.00% | 34.00% | 35.00%
Undistributed Earnings of Foreign Subsidiaries | $ 3,000 |  |
Unrecognized Tax Benefits, Period Increase (Decrease) | 89 |  |
Unrecognized tax benefits that would impact effective tax rate | 398 | $ 483 | $ 382
Decrease in Unrecognized Tax Benefits is Reasonably Possible | $ 65 |  |
State Administration of Taxation, China [Member] | Earliest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax year under examination | 2010 |  |
State Administration of Taxation, China [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax year under examination | 2014 |  |
Foreign Tax Authority [Member] | Earliest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Expiration date of operating loss carryforwards | Jan. 01, 2019 |  |
Tax year under examination | 2005 |  |
Foreign Tax Authority [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Expiration date of operating loss carryforwards | Dec. 31, 2038 |  |
Tax year under examination | 2017 |  |
State and Local Jurisdiction [Member] | Earliest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax year under examination | 2005 |  |
State and Local Jurisdiction [Member] | Latest Tax Year [Member] |  |  |
Income Taxes [Line Items] |  |  |
Tax year under examination | 2017 |  |

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