9. Benefit Plans

Pension Plans - The Company has several non-contributory defined benefit plans for eligible employees. Benefits for certain plans are determined annually based on a specified percentage of annual earnings (based on the participant’s age or years of service) and a specified interest rate (which is established annually for all participants) applied to accrued balances. The benefits for another plan which covers salaried employees are based on formulas which include, among others, years of service and average pay. The Company’s funding policy is to make contributions in accordance with applicable governmental regulatory requirements.

Other Postretirement Benefit Plans - The Company has several postretirement benefit plans covering eligible employees and retirees. Participants generally become eligible after reaching age 55 with required years of service. Actual requirements for coverage vary by plan. Benefits for retirees who were covered by bargaining units vary by each unit and contract. Benefits for certain retirees are in the form of a Company health care account.

Benefits for retirees reaching age 65 are generally integrated with Medicare. Other retirees, based on plan provisions, must use Medicare as their primary coverage, with the Company reimbursing a portion of the unpaid amount; or are reimbursed for the Medicare Part B premium or have no Company coverage. The benefits provided by the Company are basically health and, for certain retirees, life insurance type benefits.

The Company funds certain of these benefit plans, and accrues postretirement benefits during the active service of those employees who would become eligible for such benefits when they retire.

The components of net periodic benefit cost are as follows:


					Other
	Pension Benefits				Postretirement Benefits
Three Months Ended March 31	2015		2014		2015		2014

(In millions)

Service cost	$	4	$	5
Interest cost		32		37	$	1	$	1
Expected return on plan assets		(48)		(53)		(1)		(1)
Amortization of unrecognized net loss		11		7
Amortization of unrecognized prior service benefit						(2)		(6)

Net periodic benefit cost	$	(1)	$	(4)	$	(2)	$	(6)