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Postretirement Benefits Other Than Pensions (Other Postretirement Benefit Plan, Defined Benefit [Member])
 12 Months Ended
Dec. 31, 2014
Other Postretirement Benefit Plan, Defined Benefit [Member]
  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Postemployment Benefits Other Than Pensions
NOTE 16. POSTRETIREMENT BENEFITS OTHER THAN PENSIONS
The Company sponsors an other than pension postretirement employee benefit plan (“OPEB”) that provides medical, dental and/or life insurance benefits to approximately 500 retired and 300 active employees (the “OPEB Plan”). The Company generally is self-insured for the benefits under the OPEB Plan. The medical plan generally provides for a limited number of years of medical insurance benefits at retirement based on the participant’s attained age at retirement and number of years of service until specified dates and generally requires participant contributions, with most contributions adjusted annually.
Changes in Fair Value of Plan Assets and Changes in Accumulated Postretirement Benefit Obligation for the years ended December 31, 2014 and 2013 were:
DOLLARS IN MILLIONS
 
 
2014
 
2013
Fair Value of Plan Assets at Beginning of Year
 
$
—

 
$
—

Employer Contributions
 
3.4

 
2.9

Plan Participants’ Contributions
 
1.2

 
1.2

Benefits Paid
 
(4.6
)
 
(4.1
)
Fair Value of Plan Assets at End of Year
 
—

 
—

Accumulated Postretirement Benefit Obligation at Beginning of Year
 
35.1

 
42.8

Service Cost
 
0.2

 
0.2

Interest Cost
 
1.1

 
1.2

Plan Participants’ Contributions
 
1.2

 
1.2

Benefits Paid
 
(4.6
)
 
(4.1
)
Medicare Part D Subsidy Received
 
0.1

 
—

Actuarial Gains
 
(2.0
)
 
(6.2
)
Accumulated Postretirement Benefit Obligation at End of Year
 
31.1

 
35.1

Funded Status—Accumulated Postretirement Benefit Obligation in Excess of Plan Assets
 
$
(31.1
)
 
$
(35.1
)
Unamortized Actuarial Gain Reported in AOCI at End of Year
 
$
18.6

 
$
18.4


The measurement dates of the assets and liabilities at end of year in the preceding table under the headings “2014” and “2013” were December 31, 2014 and December 31, 2013, respectively.
The weighted-average discount rate and rate of increase in future compensation levels used to develop the components of the Accumulated Postretirement Benefit Obligation at December 31, 2014 and 2013 were:
 
 
2014
 
2013
Discount Rate
 
3.40
%
 
4.00
%
Rate of Increase in Future Compensation Levels
 
2.68

 
2.10


The assumed health care cost trend rate used in measuring the Accumulated Postretirement Benefit Obligation at December 31, 2014 was 8.0% for 2015, gradually declining to 5.0% in the year 2023 and remaining at that level thereafter for medical benefits and 7.5% for 2015, gradually declining to 5.0% in the year 2023 and remaining at that level thereafter for prescription drug benefits. The assumed health care cost trend rate used in measuring the Accumulated Postretirement Benefit Obligation at December 31, 2013 was 8.5% for 2014, gradually declining to 5.0% in the year 2021 and remaining at that level thereafter for medical benefits and 8.0% for 2014, gradually declining to 5.0% in the year 2022 and remaining at that level thereafter for prescription drug benefits.
A one-percentage point increase in the assumed health care cost trend rate for each year would have increased the Accumulated Postretirement Benefit Obligation at December 31, 2014 by $1.7 million and 2014 OPEB expense by $0.1 million. A one-percentage point increase in the assumed health care cost trend rate for each year would have increased the Accumulated Postretirement Benefit Obligation at December 31, 2013 by $2.1 million and 2013 OPEB expense by $0.1 million.
NOTE 16. POSTRETIREMENT BENEFITS OTHER THAN PENSIONS (Continued)
The components of Comprehensive OPEB Income for the years ended December 31, 2014, 2013 and 2012 were:
DOLLARS IN MILLIONS
 
2014
 
2013
 
2012
Service Cost Earned During the Year
 
$
0.2

 
$
0.2

 
$
0.2

Interest Cost on Accumulated Postretirement Benefit Obligation
 
1.1

 
1.2

 
1.6

Amortization of Actuarial Gain
 
(1.8
)
 
(1.2
)
 
(1.2
)
OPEB Expense (Income) Recognized in Consolidated Statements of Income
 
(0.5
)
 
0.2

 
0.6

Unrecognized OPEB Gain Arising During the Year
 
(2.0
)
 
(6.2
)
 
(5.5
)
Amortization of Accumulated Unrecognized OPEB Gain
 
1.8

 
1.2

 
1.2

Comprehensive OPEB Income
 
$
(0.7
)
 
$
(4.8
)
 
$
(3.7
)

The Company estimates that OPEB Expense for the year ended December 31, 2015 will include income of $1.5 million resulting from the amortization of the related accumulated actuarial gain included in AOCI at December 31, 2014.
The weighted-average discount rate and rate of increase in future compensation levels used to develop OPEB Expense for the years ended December 31, 2014, 2013 and 2012 were:
 
 
2014
 
2013
 
2012
Discount Rate
 
4.00
%
 
3.15
%
 
4.25
%
Rate of Increase in Future Compensation Levels
 
2.10

 
2.10

 
2.10


The Company expects to contribute $3.2 million, net of the expected Medicare Part D subsidy, to its OPEB Plan to fund benefit payments in 2015.
The following benefit payments (net of participant contributions), which consider expected future service, as appropriate, are expected to be paid:
DOLLARS IN MILLIONS
 
Years Ending December 31,
2015
 
2016
 
2017
 
2018
 
2019
 
2020-2024
Estimated Benefit Payments:
 
 
 
 
 
 
 
 
 
 
 
 
Excluding Medicare Part D Subsidy
 
$
3.6

 
$
3.7

 
$
3.6

 
$
3.5

 
$
3.4

 
$
13.8

Expected Medicare Part D Subsidy
 
(0.4
)
 
(0.4
)
 
(0.4
)
 
(0.4
)
 
(0.4
)
 
(1.6
)
Net Estimated Benefit Payments
 
$
3.2

 
$
3.3

 
$
3.2

 
$
3.1

 
$
3.0

 
$
12.2