Retirement Plans and Profit Sharing Arrangements (Weighted Average Assumptions for Other Postretirement Benefits) (Details 9) (Other Postretirement Benefit Plan [Member])	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure
Discount rates (as a percent)	3.60%	4.25%
Healthcare cost increase rates:
Next year trend rate (as a percent)	6.00%	6.00%
Ultimate trend rate (as a percent)	5.00%	5.00%
Years to ultimate trend rate	4 years	2 years

Defined Benefit Plan, Years until rate reaches ultimate trend rate

No definition available.

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- Details

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- Definition

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

+ References

+ 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=35743120&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

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- Definition

The ultimate trend rate for health care costs.

+ References

+ Details

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