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Retirement Plans (Fair Value Of Pension Plan Assets) (Details) - USD ($) $ in Millions | Feb. 03, 2018 | Jan. 28, 2017
--- | --- | ---
Fair value of pension plan assets | $ 117 | $ 112
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 25 | 20
Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 92 | 92
Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] |  |
Fair value of pension plan assets | 3,447 | 3,377
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 2,097 | 1,421
Pension Plan [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 686 | 821
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Money market securities [Member] |  |
Fair value of pension plan assets | 5 | 14
Pension Plan [Member] | Money market securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Money market securities [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 5 | 14
Pension Plan [Member] | Money market securities [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Money market pooled funds [Member] |  |
Fair value of pension plan assets | 35 | 74
Pension Plan [Member] | Money market pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 35 | 74
Pension Plan [Member] | Money market pooled funds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Money market pooled funds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | UNITED STATES |  |
Fair value of pension plan assets | 157 | 309
Pension Plan [Member] | Equity securities [Member] | United States pooled funds [Member] |  |
Fair value of pension plan assets | 481 | 654
Pension Plan [Member] | Equity securities [Member] | International [Member] |  |
Fair value of pension plan assets | 447 | 649
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | UNITED STATES |  |
Fair value of pension plan assets | 157 | 309
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | United States pooled funds [Member] |  |
Fair value of pension plan assets | 481 | 446
Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International [Member] |  |
Fair value of pension plan assets | 114 | 131
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | UNITED STATES |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | United States pooled funds [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | International [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | UNITED STATES |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | United States pooled funds [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | International [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | U.S. Treasury bonds [Member] |  |
Fair value of pension plan assets | 44 | 194
Pension Plan [Member] | U.S. Treasury bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 44 | 194
Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Other Government bonds [Member] |  |
Fair value of pension plan assets | 59 | 40
Pension Plan [Member] | Other Government bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Other Government bonds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 59 | 40
Pension Plan [Member] | Other Government bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Agency backed bonds [Member] |  |
Fair value of pension plan assets | 13 | 24
Pension Plan [Member] | Agency backed bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Agency backed bonds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 13 | 24
Pension Plan [Member] | Agency backed bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Corporate bonds [Member] |  |
Fair value of pension plan assets | 538 | 453
Pension Plan [Member] | Corporate bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Corporate bonds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 538 | 453
Pension Plan [Member] | Corporate bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] |  |
Fair value of pension plan assets | 15 | 85
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 15 | 85
Pension Plan [Member] | Mortgage-backed securities and forwards [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Asset-backed securities [Member] |  |
Fair value of pension plan assets | 6 | 17
Pension Plan [Member] | Asset-backed securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Asset-backed securities [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 6 | 17
Pension Plan [Member] | Asset-backed securities [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Pooled funds [Member] |  |
Fair value of pension plan assets | 1,310 | 461
Pension Plan [Member] | Pooled funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 1,310 | 461
Pension Plan [Member] | Pooled funds [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Pooled funds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Real Estate [Member] |  |
Fair value of pension plan assets | 148 | 223
Pension Plan [Member] | Real Estate [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Real Estate [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Real Estate [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Private equity [Member] |  |
Fair value of pension plan assets | 183 | 186
Pension Plan [Member] | Private equity [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Private equity [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Private equity [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Derivatives in a positive position [Member] |  |
Fair value of pension plan assets | 9 | 13
Pension Plan [Member] | Derivatives in a positive position [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Derivatives in a positive position [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | 9 | 13
Pension Plan [Member] | Derivatives in a positive position [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Derivatives in a negative position [Member] |  |
Fair value of pension plan assets | (3) | (19)
Pension Plan [Member] | Derivatives in a negative position [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair value of pension plan assets | 0 | 0
Pension Plan [Member] | Derivatives in a negative position [Member] | Significant Observable Inputs (Level 2) [Member] |  |
Fair value of pension plan assets | (3) | (19)
Pension Plan [Member] | Derivatives in a negative position [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Fair value of pension plan assets | $ 0 | $ 0

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