Pension And Postretirement Benefits (Schedule Of Pension Plan Target Allocations And Weighted-Average Asset Allocations By Asset Category) (Details)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	75.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	35.00%
Actual asset allocation, percentage	51.00%	55.00%
DefinedBenefitPlantargetallocationrange	35%-75%
Fixed income securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	50.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	20.00%
Actual asset allocation, percentage	27.00%	28.00%
DefinedBenefitPlantargetallocationrange	20%-50%
Alternative assets/Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	20.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Actual asset allocation, percentage	20.00%	14.00%
DefinedBenefitPlantargetallocationrange	0%-20%
Money market [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum	10.00%
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum	0.00%
Actual asset allocation, percentage	2.00%	3.00%
DefinedBenefitPlantargetallocationrange	0%-10%

Defined Benefit Plan target allocation range

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- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ 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 (d)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

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- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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