| 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] |
2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 | 2004-02-01 - 2005-01-29 | 2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 | 2004-02-01 - 2005-01-29 | 2006-01-29 - 2007-02-03 | 2005-01-30 - 2006-01-28 | 2004-02-01 - 2005-01-29 |
Defined Benefit Plan Disclosure [Line Items] | | | | | | | | | |
| Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | | | |
| Defined Benefit Plan, Fair Value of Plan Assets | 2,075,000,000 | 1,845,000,000 | 1,698,000,000 | | | 0 | | | 0 |
Defined Benefit Plan, Actual Return on Plan Assets | 303,000,000 | 174,000,000 | | | | | | | 0 |
Defined Benefit Plan, Contributions by Employer | 3,000,000 | 67,000,000 | | 5,000,000 | 5,000,000 | | 12,000,000 | 13,000,000 | |
Defined Benefit Plan, Contributions by Plan Participants | | | | | | | 9,000,000 | 17,000,000 | |
Defined Benefit Plan, Benefits Paid | 76,000,000 | 94,000,000 | | 5,000,000 | 5,000,000 | | 21,000,000 | 30,000,000 | |
Defined Benefit Plan, Funded Status of Plan | 311,000,000 | 219,000,000 | | (36,000,000) | (33,000,000) | | (115,000,000) | (105,000,000) | |