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Employee Benefit Plans (Schedule Of Fair Value Of Plan Assets) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | $ 2,341 | $ 2,174
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 962 | 851
Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 1,379 | 1,323
Common stock - U.S. companies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 221 | 182
Common stock - U.S. companies [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 221 | 182
Common stock - International companies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 2 | 1
Common stock - International companies [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 2 | 1
Equity mutual funds - Emerging markets [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 75 | 81
Equity mutual funds - Emerging markets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 75 | 81
Equity mutual funds - International [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 111 | 110
Equity mutual funds - International [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 111 | 110
Equity mutual funds - Large cap U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 419 | 386
Equity mutual funds - Large cap U.S. [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 419 | 386
Equity mutual funds - Other [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value |  | 1
Equity mutual funds - Other [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value |  | 1
Common collective trust funds - International equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 373 | 406
Common collective trust funds - International equity [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 373 | 406
Common collective trust funds - Large cap U.S. equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 51 | 17
Common collective trust funds - Large cap U.S. equity [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 51 | 17
Common collective trust funds - Fixed income [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 437 | 373
Common collective trust funds - Fixed income [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 437 | 373
Common collective trust funds - Other [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 62 | 47
Common collective trust funds - Other [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 62 | 47
Debt instruments - Corporate bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 422 | 437
Debt instruments - Corporate bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 422 | 437
Debt instruments - U.S. Treasury instruments [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 134 | 90
Debt instruments - U.S. Treasury instruments [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 134 | 90
Debt instruments - U.S. government agency, state and local government bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 32 | 39
Debt instruments - U.S. government agency, state and local government bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 32 | 39
Other Debt Instruments [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | 2 | 4
Other Debt Instruments [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total assets at fair value | $ 2 | $ 4

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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