Retirement Plans (Weighted Average Assumptions Used To Determine Net Periodic Benefit Cost) (Details)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets (in hundredths)	7.50%	7.50%
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)	5.00%	4.10%	4.60%
Expected long-term rate of return on plan assets (in hundredths)	7.50%	7.50%	7.50%
Rate of compensation increase (in hundredths)	4.25%	4.25%	4.25%
SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)	5.00%	4.10%	4.60%
Expected long-term rate of return on plan assets (in hundredths)	0.00%	0.00%	0.00%
Rate of compensation increase (in hundredths)	0.00%	0.00%	0.00%
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)	5.00%	4.10%	4.60%
Initial rate (in hundredths)	7.00%	7.50%	7.50%
Ultimate rate (in hundredths)	5.00%	5.00%	5.00%
Years to ultimate	2018	2018	2017

Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Initial Health Care Cost Trend Rate

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- Definition

Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Ultimate Health Care Cost Trend Rate

+ References

No definition available.

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- Definition

Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Year That Reaches ultimate Health Care Cost Trend Rate.

+ References

No definition available.

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- Definition

The interest rate used to adjust for the time value of money.

+ 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 (k)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(3)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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- Definition

Expected rate of compensation increases (for pay-related plans).

+ 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 (k)(2)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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