Employee Benefit Plans (Assumed Healthcare Cost Trend Rates) (Details)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Assumed healthcare cost trend rates
Healthcare cost trend rate	6.40%	7.80%
Year that rate reaches ultimate trend rate	2094	2094
Ultimate healthcare cost trend rate for Pre-Medicare	4.40%	4.40%
Ultimate healthcare cost trend rate for Post-Medicare	4.60%	4.60%

The ultimate trend rate for Post-Medicare health care costs.

No definition available.

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- Definition

The ultimate trend rate for Pre-Medicare health care costs.

+ References

No definition available.

+ Details

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- Details

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- Definition

The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

+ 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 (l)

-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

-Glossary Health Care Cost Trend Rate

-URI http://asc.fasb.org/extlink&oid=6514820

+ Details

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- Definition

Year the ultimate health care cost trend rate is expected to be reached, in CCYY format.

+ References

+ Details

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