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Summary of Significant Accounting Policies - Revenue (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Sales returns reserve | $ 23 | $ 28 |
Deferred revenue | 453 | 418 |
Deferred revenue, noncurrent | $ 22 | $ 34 |
Percentage of Commissions on Sale of Extended Warranties to Revenue | 2.00% | 2.20% | 2.30%
Profit Share on Sale of Extended Warranties | $ 68 | $ 133 | $ 158
Gift Card Redeemability, Determination Period | 24 months |  |
Revenue Recognition, Milestone Method, Revenue Recognized | $ 40 | $ 37 | $ 46
Period of Expiration for Customer Loyalty Certificates, Low End of Range | 2 months |  |
Period of Expiration for Customer Loyalty Certificates, High End of Range | 12 months |  |
Retained Earnings [Member] | Minimum [Member] | Accounting Standards Update 2014-09 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Estimate of future ASU adoption cumulative adjustment | $ 75 |  |
Retained Earnings [Member] | Maximum [Member] | Accounting Standards Update 2014-09 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Estimate of future ASU adoption cumulative adjustment | $ 100 |  |

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