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Common stock percentage in assets held saving plans.

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- Definition

Deferred Compensation Plan, Base Salary And Incentive Compensation, Percentage

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Defined Benefit Pension And Other Postretirement Benefits Plans, Total Plan Assets Percentage, On Common Stock

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Defined Benefit Plan, Plan Asset Threshold for Long-term Allocation Targets

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Judgment Of Damages By The Court, Maximum

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Minimum rating of amendment in participants interest credit.

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Performance Units Adjustment For Performance Multiplier Range Maximum

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Performance Units Adjustment For Performance Multiplier Range Minimum

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Performance Period

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Share-based Compensation Arrangement by Share-based Payment Award, Expected Volatility Based on Historical Daily Stock Prices, Historical Period

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2009	Jan. 31, 2014	Dec. 31, 2013
Benefit Plans [Line Items]
Total plan assets, percentage of common stock (less than 1%)	1.00%
Interest crediting rate, percentage above annual change in consumer price index		3.00%
Common stock percentage in assets held in 401(k) saving plans	12.60%			11.30%
Unrecognized compensation cost	$ 6.5
Percentage of base salary and performance-based compensation	100.00%
Performance Shares and Units [Member]
Benefit Plans [Line Items]
Performance period	3 years
Expected volatility based on historical daily stock prices, historical period	3 years
Performance Shares [Member]
Benefit Plans [Line Items]
Performance multiplier range, lower	0.00%
Performance multiplier range, upper	200.00%
Performance Units [Member]
Benefit Plans [Line Items]
Performance multiplier range, lower	0.00%
Performance multiplier range, upper	200.00%
Minimum [Member]
Benefit Plans [Line Items]
Unrecognized compensation cost recognized over a weighted average period	1 year
Minimum [Member] \| Performance-Contingent Restricted Stock [Member]
Benefit Plans [Line Items]
Performance period	2 years
Minimum [Member] \| Performance Contingent Cash Awards [Member]
Benefit Plans [Line Items]
Performance period	2 years
Maximum [Member]
Benefit Plans [Line Items]
Unrecognized compensation cost recognized over a weighted average period	2 years
Maximum [Member] \| Performance-Contingent Restricted Stock [Member]
Benefit Plans [Line Items]
Performance period	4 years
Maximum [Member] \| Performance Contingent Cash Awards [Member]
Benefit Plans [Line Items]
Performance period	4 years
Other Postretirement Benefits Plans [Member]
Benefit Plans [Line Items]
Plan asset threshold for long-term allocation targets	5
Other Postretirement Benefits Plans [Member] \| Cash Balance Plan [Member]
Benefit Plans [Line Items]
Final judgment from court order			9.0
Plaintiffs' attorney's fees and costs				$ 6.7
Omnibus Incentive Plan [Member]
Benefit Plans [Line Items]
Shares available for issuance under the OIP	3.9