Retirement Benefit Plans Retirement Benefit Plans (Accumulated Benefit Obligation) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Feb. 01, 2020 |
Feb. 02, 2019 |
Feb. 03, 2018 |
|
| Pension Plan [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Defined Benefit Plan, Plan Assets, Payment for Settlement | $ 153,000 | $ 174,000 | |
| Accumulated benefit obligation | 3,200,000 | 2,900,000 | |
| Fair value of plan assets | 3,467,000 | 3,163,000 | $ 3,528,000 |
| Supplemental Employee Retirement Plan [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Current Portion of Pension Plan Liability Accrued | 27,000 | 30,000 | |
| Defined Benefit Plan, Plan Assets, Payment for Settlement | 0 | 0 | |
| Accumulated benefit obligation | 130,000 | 141,000 | |
| Fair value of plan assets | $ 0 | $ 0 | $ 0 |