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Other Employee Benefits | 12 Months Ended
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Dec. 31, 2016
OTHER EMPLOYEE BENEFIT PLANS: [Abstract] |
Compensation and Employee Benefit Plans [Text Block] | NOTE 16—OTHER EMPLOYEE BENEFIT PLANS: UMWA Benefit Trusts: The Coal Act created two multi-employer benefit plans: (1) the United Mine Workers of America Combined Benefit Fund (the Combined Fund) into which the former UMWA Benefit Trusts were merged, and (2) the United Mine Workers of America 1992 Benefit Plan (1992 Benefit Plan). CONSOL Energy accounts for required contributions to these multi-employer trusts as expense when incurred. The Combined Fund provides medical and death benefits for all beneficiaries of the former UMWA Benefit Trusts who were actually receiving benefits as of July 20, 1992. The 1992 Benefit Plan provides medical and death benefits to orphan UMWA-represented members eligible for retirement on February 1, 1993, and for those who retired between July 20, 1992 and September 30, 1994. The Coal Act provides for the assignment of beneficiaries to former employers and the allocation of unassigned beneficiaries (referred to as orphans) to companies using a formula set forth in the Coal Act. The Coal Act requires that responsibility for funding the benefits to be paid to beneficiaries be assigned to their former signatory employers or related companies. This cost is recognized when contributions are assessed. CONSOL Energy's total contributions under the Coal Act were $8,455, $9,239 and $10,121 for the years ended December 31, 2016, 2015 and 2014, respectively. Based on available information at December 31, 2016, CONSOL Energy's obligation for the Combined Fund and 1992 Benefit Plans is estimated to be approximately $93,795. Pursuant to the provisions of the Tax Relief and Healthcare Act of 2006 (the 2006 Act) and the 1992 Benefit Plan, CONSOL Energy is required to provide security in an amount based on the annual cost of providing health care benefits for all individuals receiving benefits from the 1992 Benefit Plan who are attributable to CONSOL Energy, plus all individuals receiving benefits from an individual employer plan maintained by CONSOL Energy who are entitled to receive such benefits. In accordance with the terms of the 2006 Act and the 1992 Benefit Plan, CONSOL Energy must secure its obligations by posting letters of credit, which were $19,170, $21,473 and $21,394 at December 31, 2016, 2015 and 2014, respectively. The 2016, 2015 and 2014 security amounts were based on the annual cost of providing health care benefits and included a reduction in the number of eligible employees. Investment Plan: CONSOL Energy has an investment plan available to most non-represented employees. Throughout the year ended December 31, 2016, the Company's matching contribution was 6% of eligible compensation contributed by eligible employees. In conjunction with the qualified pension plan changes in 2015, the Company contributed an additional 3% of eligible compensation into the 401(k) plan accounts for employees hired or rehired on or after October 1, 2014 or who were under age 40 or had less than 10 years of service with the Company as of September 30, 2014. This additional contribution was eliminated on January 1, 2016. The Company may also make discretionary contributions to the Plan ranging from 1% to 6% (1% to 4% prior to January 1, 2016) of eligible compensation for eligible employees (as defined by the Plan). Discretionary contributions made by the Company were $12,260 for the year ended December 31, 2016. There were no such discretionary contributions made by the Company for the years ended December 31, 2015 and 2014. Total payments and costs were $20,784, $20,058 and $18,341 for the years ended December 31, 2016, 2015 and 2014, respectively. Long-Term Disability: CONSOL Energy has a Long-Term Disability Plan available to all eligible full-time salaried employees. The benefits for this plan are based on a percentage of monthly earnings, offset by all other income benefits available to the disabled.
|  | For the Years Ended
|  | December 31,
|  | 2016 |  | 2015 |  | 2014
Benefit cost |  | $ | 2,128 |  |  | $ | 2,619 |  |  | $ | 2,213 |
Discount rate assumption used to determine net periodic benefit costs |  | 3.71 | % |  | 3.18 | % |  | 3.53 | %
Liabilities incurred under the Long-Term Disability Plan are included in Other Accrued Liabilities and Deferred Credits and Other Liabilities–Other in the Consolidated Balance Sheets and amounted to a combined total of $19,144 and $19,789 at December 31, 2016 and 2015, respectively.

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- Definition OTHER EMPLOYEE BENEFIT PLANS: [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References No definition available. + Details
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