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Pension Plans and Other Retirement Benefits - Fair Value for Pension Assets Measured at Fair Value on Recurring Basis (Detail) - Funded Plan - USD ($) $ in Thousands | Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 1,245,335 | $ 1,417,531 | $ 1,176,960
Fair value of assets | 1,245,335 | 1,417,531 |
Futures Contracts |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 1,029 | 337 |
Short-Term Investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 111,803 | 109,183 |
Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 226,042 | 279,635 |
Corporate and Government Bond Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 376,438 | 420,117 |
Assets in Fair Value Hierarchy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 715,312 | 809,272 |
Assets Measured at Net Asset Value |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 530,023 | 608,259 |
Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of assets | 337,845 | 388,818 |
Level 1 | Short-Term Investments |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 111,803 | 109,183 |
Level 1 | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 226,042 | 279,635 |
Level 1 | Assets in Fair Value Hierarchy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 337,845 | 388,818 |
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of assets | 377,467 | 420,454 |
Level 2 | Futures Contracts |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 1,029 | 337 |
Level 2 | Corporate and Government Bond Funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 376,438 | 420,117 |
Level 2 | Assets in Fair Value Hierarchy |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 377,467 | $ 420,454 |

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