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Retirement Plans (Narrative) (Details) $ in Millions | 12 Months Ended
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Feb. 02, 2019 USD ($) yr d | Feb. 03, 2018 USD ($) | Jan. 28, 2017 USD ($) | Jan. 30, 2016 USD ($)
Number of hours required for participation in defined benefit and defined contribution plans | 1,000 |  |  |
Liability under qualified defined contribution plan | $ 103 | $ 101 |  |
Minimum [Member] |  |  |  |
Range of restrictions on investment redemption frequency, number of times allowed per year | d | 4 |  |  |
Maximum [Member] |  |  |  |
Range of restrictions on investment redemption frequency, number of times allowed per year | d | 365 |  |  |
Other Postretirement Benefits Plan [Member] |  |  |  |
Discount rate | 4.02% | 3.71% |  |
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year | $ (7) |  |  |
Company contributions to defined benefit pension plan | $ 13 | $ 17 |  |
Supplemental Employee Retirement Plan |  |  |  |
Discount rate | 4.10% | 3.78% |  |
Accumulated benefit obligation for defined benefit plan | $ 644 | $ 703 |  |
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year | 8 |  |  |
Company contributions to defined benefit pension plan | $ 73 | $ 86 |  |
Supplemental Employee Retirement Plan | Minimum [Member] |  |  |  |
Discount rate for interest cost (percent) | 3.39% | 3.10% | 2.65% |
Supplemental Employee Retirement Plan | Maximum [Member] |  |  |  |
Discount rate for interest cost (percent) | 4.09% | 3.26% | 3.16% |
Pension Plan [Member] |  |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 6.75% | 7.00% | 7.00% |
Discount rate | 4.03% | 3.74% |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Change Due to Subsequent Interim Measurement, Weighted-Average Expected Long-term Rate of Return on Plan Assets | 6.50% |  |  |
Accumulated benefit obligation for defined benefit plan | $ 3,010 | $ 3,268 |  |
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year | 30 |  |  |
Unfunded commitments to certain of these investments | 49 | 64 |  |
Company contributions to defined benefit pension plan | $ 0 | $ 0 |  |
Pension Plan [Member] | Minimum [Member] |  |  |  |
Range of investment lock-up period, in years | yr | 1 |  |  |
Discount rate for service cost (percent) | 3.77% | 3.75% | 3.79% |
Discount rate for interest cost (percent) | 3.39% | 3.12% | 2.96% |
Pension Plan [Member] | Maximum [Member] |  |  |  |
Range of investment lock-up period, in years | yr | 9 |  |  |
Discount rate for service cost (percent) | 4.46% | 4.06% | 4.26% |
Discount rate for interest cost (percent) | 4.06% | 3.31% | 3.30% |
Pension Plan [Member] | Equity securities [Member] |  |  |  |
Target allocation for equity securities in defined benefit plan | 30.00% |  |  |
Pension Plan [Member] | Debt Securities [Member] |  |  |  |
Target allocation for equity securities in defined benefit plan | 63.00% |  |  |
Pension Plan [Member] | Real Estate Funds [Member] |  |  |  |
Target allocation for equity securities in defined benefit plan | 2.00% |  |  |
Pension Plan [Member] | Private equity [Member] |  |  |  |
Target allocation for equity securities in defined benefit plan | 5.00% |  |  |
Defined Contribution Qualified Plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |
Employee retirement plan expense | $ 96 | $ 93 | $ 94 |
Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |
Employee retirement plan expense | 1 | 1 | $ 2 |
Investments | 27 | 25 |  |
Other Liabilities [Member] | Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |
Liability under non-qualified defined contribution plan | 27 | 25 |  |
Accounts Payable and Accrued Liabilities [Member] | Non qualified defined contribution plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |
Liability under non-qualified defined contribution plan | $ 2 | $ 1 |  |

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