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Segment and Geographic Information Geographic Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 03, 2018 | Oct. 28, 2017 | Jul. 29, 2017 | Apr. 29, 2017 | Jan. 28, 2017 | Oct. 29, 2016 | Jul. 30, 2016 | Apr. 30, 2016 | Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
Geographic Areas, Revenues from External Customers [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 15,363 | $ 9,320 | $ 8,940 | $ 8,528 | $ 13,482 | $ 8,945 | $ 8,533 | $ 8,443 | $ 42,151 | $ 39,403 | $ 39,528
Geographic Areas, Long-Lived Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets, net | 2,421 |  |  |  | 2,293 |  |  |  | 2,421 | 2,293 | 2,346
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic Areas, Revenues from External Customers [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 38,662 | 36,248 | 36,365
Geographic Areas, Long-Lived Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets, net | 2,205 |  |  |  | 2,120 |  |  |  | 2,205 | 2,120 | 2,189
Canada [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic Areas, Revenues from External Customers [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 3,187 | 2,899 | 2,917
Geographic Areas, Long-Lived Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets, net | 190 |  |  |  | 156 |  |  |  | 190 | 156 | 140
Other [Member] |  |  |  |  |  |  |  |  |  |  |
Geographic Areas, Revenues from External Customers [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 302 | 256 | 246
Geographic Areas, Long-Lived Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets, net | $ 26 |  |  |  | $ 17 |  |  |  | $ 26 | $ 17 | $ 17

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