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 - 2007-02-032006-01-29 - 2007-02-03
Defined Benefit Plan Disclosure [Line Items]Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments in Year One83,000,00012,000,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Two94,000,00013,000,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Three99,000,00013,000,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Four104,000,00014,000,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Five110,000,00014,000,000
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter653,000,00078,000,000