| Defined Benefit Plans [Domain] |
Pension Plans, Defined Benefit [Member] | Nonqualified Plans, Including Postretirement Health Care Benefits [Member] |
Qualified Pension Plan [Member] | Nonqualified Pension Plan [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member] |
2005-01-30 - 2006-01-28 | 2005-01-30 - 2006-01-28 | 2005-01-30 - 2006-01-28 |
Defined Benefit Plan Disclosure [Line Items] | Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract] | | | |
| Prepaid Pension Costs | 752,000,000 | | |
Pension and Other Postretirement Defined Benefit Plans, Noncurrent Liabilities | 9,000,000 | 22,000,000 | 97,000,000 |
Accumulated Other Comprehensive Income (Loss), before Tax | (5,000,000) | (5,000,000) | |
Defined Benefit Plan, Amounts Recognized in Balance Sheet | 748,000,000 | (17,000,000) | (97,000,000) |