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Retirement Plans (Schedule Of Projected Benefit Obligation And Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) (Pension Plans With Projected And Accumulated Benefit Obligations In Excess Of Plan Assets [Member], USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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Pension Plans With Projected And Accumulated Benefit Obligations In Excess Of Plan Assets [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Projected benefit obligation | $ 232 | $ 1,110 |
| Accumulated benefit obligation | 189 | 996 |
| Fair value of plan assets | $ 616 |
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- Details
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- Definition
If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
If aggregate disclosures are presented, the aggregate benefit obligation for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
If aggregate disclosures are presented, the aggregate fair value of plan assets for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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