|
Retirement Plans (Fair Value Of Pension Plan Assets) (Details) (USD $)
In Millions, unless otherwise specified
|
Jan. 31, 2015
|
Feb. 01, 2014
|
| Fair value of pension investments |
$ 97us-gaap_InvestmentsFairValueDisclosure |
$ 75us-gaap_InvestmentsFairValueDisclosure |
| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Fair value of pension investments |
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| Significant Observable Inputs (Level 2) [Member] |
|
|
| Fair value of pension investments |
97us-gaap_InvestmentsFairValueDisclosure
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75us-gaap_InvestmentsFairValueDisclosure
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| Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] |
|
|
| Cash and cash equivalents |
248us-gaap_CashAndCashEquivalentsFairValueDisclosure
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| Fair value of pension investments |
3,685us-gaap_InvestmentsFairValueDisclosure
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3,580us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_PensionPlansDefinedBenefitMember |
| Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Cash and cash equivalents |
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| Fair value of pension investments |
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| Pension Plan [Member] | Significant Observable Inputs (Level 2) [Member] |
|
|
| Cash and cash equivalents |
248us-gaap_CashAndCashEquivalentsFairValueDisclosure
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| Fair value of pension investments |
2,741us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Cash and cash equivalents |
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| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | UNITED STATES |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | International [Member] |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | UNITED STATES |
|
|
| Fair value of pension investments |
344us-gaap_InvestmentsFairValueDisclosure
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= country_US |
| Pension Plan [Member] | Equity securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International [Member] |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | UNITED STATES |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | Significant Observable Inputs (Level 2) [Member] | International [Member] |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | UNITED STATES |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | Equity securities [Member] | Significant Unobservable Inputs (Level 3) [Member] | International [Member] |
|
|
| Fair value of pension investments |
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| Pension Plan [Member] | U.S. Treasury bonds [Member] |
|
|
| Fair value of pension investments |
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= us-gaap_PensionPlansDefinedBenefitMember |
| Pension Plan [Member] | U.S. Treasury bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_FairValueInputsLevel1Member |
| Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Observable Inputs (Level 2) [Member] |
|
|
| Fair value of pension investments |
272us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_FairValueInputsLevel2Member |
| Pension Plan [Member] | U.S. Treasury bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_PensionPlansDefinedBenefitMember
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= us-gaap_FairValueInputsLevel3Member |
| Pension Plan [Member] | Other Government bonds [Member] |
|
|
| Fair value of pension investments |
55us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_PensionPlansDefinedBenefitMember |
| Pension Plan [Member] | Other Government bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Other Government bonds [Member] | Significant Observable Inputs (Level 2) [Member] |
|
|
| Fair value of pension investments |
55us-gaap_InvestmentsFairValueDisclosure
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= us-gaap_FairValueInputsLevel2Member |
| Pension Plan [Member] | Other Government bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Agency backed bonds [Member] |
|
|
| Fair value of pension investments |
28us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Agency backed bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Agency backed bonds [Member] | Significant Observable Inputs (Level 2) [Member] |
|
|
| Fair value of pension investments |
28us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Agency backed bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] |
|
|
| Fair value of pension investments |
0us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Corporate bonds [Member] |
|
|
| Fair value of pension investments |
434us-gaap_InvestmentsFairValueDisclosure
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| Pension Plan [Member] | Corporate bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |
|
|
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