| Defined Benefit Plans [Domain] |
Pension Plans, Defined Benefit [Member] | Nonqualified Plans, Including Postretirement Health Care Benefits [Member] |
Other Postretirement Benefit Plans, Defined Benefit [Member] |
2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 | 2004-02-01 - 2005-01-29 | 2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 | 2004-02-01 - 2005-01-29 |
Defined Benefit Plan Disclosure [Line Items] | Defined Benefit Plan, Assumptions Used in Calculations [Abstract] | | | | | | |
| Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] | | | | | | |
| Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.80% | 5.75% | | 5.80% | 5.75% | |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 4.00% | 3.50% | | | | |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] | | | | | | |
| Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 5.75% | 5.75% | 6.25% | 5.75% | 5.75% | 6.25% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets | 8.00% | 8.00% | 8.00% | | | |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase | 3.50% | 2.75% | 3.25% | | | |