Postretirement Health Care and Life Insurance Benefits (Weighted Average Assumptions Used To Determine Projected Benefit Obligations For Postretirement Obligations) (Details) |
Jan. 30, 2016 |
Jan. 31, 2015 |
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| Other Postretirement Benefit Plan [Member] | ||
| Discount rate | 4.15% | 3.55% |
| X | ||||||||||
- Definition The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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