| Defined Benefit Plans [Domain] |
2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 |
Defined Benefit Plan Disclosure [Line Items] | Defined Benefit Plan, Accumulated Benefit Obligation | 1,674,000,000 | 1,534,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | | |
| Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation | 51,000,000 | 46,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation | 44,000,000 | 41,000,000 |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets | 2,000,000 | 3,000,000 |