Pension Benefits and Postretirement Benefits Other Than Pensions

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Pension Benefits and Postretirement Benefits Other Than Pensions

Note 10 - Pension Benefits and Postretirement Benefits Other Than Pensions

The Company sponsors a qualified defined benefit pension plan (the “Pension Plan”). The Pension Plan covers approximately 9,200 participants and beneficiaries, of which 1,800 are active employees. The Pension Plan is closed to new employees hired after January 1, 2006. The components of Pension Expense for the Pension Plan for the three months endedMarch 31, 2016 and 2015 were:

	Three Months Ended
(Dollars in Millions)	Mar 31, 2016			Mar 31, 2015
Service Cost Earned	$	2.2		$	2.6
Interest Cost on Projected Benefit Obligation	5.4			6.4
Expected Return on Plan Assets	(8.2		)	(8.8		)
Amortization of Accumulated Net Unrecognized Pension Costs	3.0			5.8
Total Pension Expense Recognized	$	2.4		$	6.0

On May 4, 2016, the Board of Directors authorized the Company to amend the Pension Plan to freeze benefit accruals, effective June 30, 2016, for substantially all of the participants under the plan. Accordingly, plan assets and liabilities will be re-measured in the second quarter of 2016, and the resultant cumulative actuarial loss will be amortized over approximately 25 years, the remaining estimated life expectancy of participants. Prior to the amendment, the cumulative actuarial loss was amortized over approximately 5 years, the remaining average service lives of active participants. Except for recording a loss of approximately $1.0 million for the three months ended June 30, 2016 to immediately recognize the remaining net unamortized prior service costs, no additional curtailment gain or loss is anticipated.

In addition to the Pension Plan, the Company also sponsors a non-qualified supplemental defined benefit pension plan and several defined contribution pension plans.

Note 10 - Pension Benefits and Postretirement Benefits Other Than Pensions (continued)

The Company also sponsors an other than pension postretirement employee benefit plan (“OPEB”) that provides medical, dental and/or life insurance benefits to approximately 500 retired and 225 active employees (the “OPEB Plan”). The components of Postretirement Benefits Other than Pensions Expense (Benefit) for the OPEB Plan for the three months endedMarch 31, 2016 and 2015 were:

	Three Months Ended
(Dollars in Millions)	Mar 31, 2016			Mar 31, 2015
Service Cost Earned	$	—		$	—
Interest Cost on Projected Benefit Obligation	0.2			0.3
Amortization of Accumulated Net Unrecognized Gain	(0.3		)	(0.4		)
Total Postretirement Benefits Other than Pensions Expense (Benefit)	$	(0.1	)	$	(0.1	)