Stockholders' Equity Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (Details) - USD ($) $ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
Feb. 03, 2018 |
Jan. 28, 2017 |
Jan. 30, 2016 |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | |||||
| Reclassification for amortization of prior service (credit)/cost (5) | [1] | $ 4 | $ 0 | $ 2 | |
| Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Settlement Adjustment In Net Periodic Benefit Cost Gross Amount | (13) | (180) | |||
| Other comprehensive income/(loss) | 113 | 18 | (141) | ||
| Selling, General and Administrative Expenses [Member] | |||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | |||||
| Reclassification for amortization of net actuarial (gain)/loss included in net periodic benefit expense/(income), gross amount | 0 | 9 | 0 | ||
| Amortization of prior service (credit)/cost | $ 0 | $ (8) | $ (7) | ||
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