Pension and Other Postretirement Benefits ( Summary of Assumptions for the Expected Long-Term Rate of Return on Assets) (Details)	12 Months Ended
Dec. 31, 2013
Investment Holdings [Line Items]
Fixed income investments	100.00%
Return	7.25%
Fixed income investments [Member]
Investment Holdings [Line Items]
Fixed income investments	50.00%
Return	5.40%
UNITED STATES \| U.S. equity investments [Member]
Investment Holdings [Line Items]
Fixed income investments	35.00%
Return	8.90%
International Equity Investments [Member] \| U.S. equity investments [Member]
Investment Holdings [Line Items]
Fixed income investments	15.00%
Return	9.30%

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.

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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Balance Type:	na
Period Type:	duration