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 - 2006-01-282005-01-30 - 2006-01-282005-01-30 - 2006-01-28
Defined Benefit Plan Disclosure [Line Items]Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Prepaid Pension Costs752,000,000
Pension and Other Postretirement Defined Benefit Plans, Noncurrent Liabilities9,000,00022,000,00097,000,000
Accumulated Other Comprehensive Income (Loss), before Tax(5,000,000)(5,000,000)
Defined Benefit Plan, Amounts Recognized in Balance Sheet748,000,000(17,000,000)(97,000,000)