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

+ References

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- Definition

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

+ References

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- Definition

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

+ References

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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=35743120&loc=d3e1928-114920

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- Definition

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

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ References

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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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

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ 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 (d)(i)

-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

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

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- Definition

The ultimate trend rate for health care costs.

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- Definition

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

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- Definition

The assumed dental cost trend rate which is used to determine net periodic benefit cost.

+ References

No definition available.

+ Details

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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 during next fiscal year.

+ References

No definition available.

+ Details

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EMPLOYEE BENEFIT PLANS - ASSUMPTIONS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Weighted average assumptions used
Expected return on assets during next fiscal year	7.75%
Pension Benefits
Weighted average assumptions used
Discount rate	4.08%	4.92%		4.08%
Rate of compensation increase	4.23%	4.25%		4.23%
Discount rate	4.92%	4.07%	5.10%
Expected return on plan assets	8.00%	8.00%	8.25%
Rate of compensation increase	4.25%	4.26%	4.26%
Pension Benefits \| Equity securities:
Target asset allocations
Target asset allocations (as a percent)	70.00%			60.00%
Pension Benefits \| Fixed income securities:
Target asset allocations
Target asset allocations (as a percent)	30.00%			40.00%
Other Benefits
Weighted average assumptions used
Discount rate	4.11%	4.98%		4.11%
Assumed medical cost trend rate (as a percent)	6.00%	6.50%
Ultimate trend rate (as a percent)	5.00%	5.00%
Year ultimate trend rate is reached	2023	2019		2023
Assumed dental cost trend rate (as a percent)	5.00%	5.00%	5.00%
Discount rate	4.78%	4.01%	5.04%
Expected return on plan assets	8.00%	8.00%	8.25%
Effects of a one-percentage-point change in assumed health care cost trend rates
Effect of one-percentage-point increase on total of service and interest cost components of net periodic postretirement health care benefit cost	3.3
Effect of one-percentage-point decrease on total of service and interest cost components of net periodic postretirement health care benefit cost	(2.6)
Effect of one-percentage-point increase on the health care component of the accumulated postretirement benefit obligation	34.4
Effect of one-percentage-point decrease on the health care component of the accumulated postretirement benefit obligation	(33.9)
Other Benefits \| Under age 65
Weighted average assumptions used
Assumed medical cost trend rate (as a percent)	6.50%	7.00%	7.00%
Ultimate trend rate (as a percent)	5.00%	5.00%	5.00%
Year ultimate trend rate is reached	2019	2019	2016	2019
Other Benefits \| Over age 65
Weighted average assumptions used
Assumed medical cost trend rate (as a percent)	6.50%	7.00%	7.50%
Ultimate trend rate (as a percent)	5.00%	5.00%	5.00%
Year ultimate trend rate is reached	2019	2019	2016	2019
Other Benefits \| Equity securities:
Target asset allocations
Target asset allocations (as a percent)	70.00%
Other Benefits \| Fixed income securities:
Target asset allocations
Target asset allocations (as a percent)	30.00%