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Postretirement Benefits (Tables)
3 Months Ended
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Schedule of cost of pension plans
The cost of our pension plans are as follows:
 
 
 
Erie Insurance Group
(in millions)
 
Three months ended March 31,
 
 
2015
 
2014
Service cost for benefits earned
 
$
8

 
$
6

Interest cost on benefits obligation
 
8

 
7

Expected return on plan assets
 
(9
)
 
(8
)
Prior service cost amortization
 
0

 
0

Net actuarial loss amortization
 
3

 
2

Pension plan cost (1)
 
$
10

 
$
7

 
(1)
Pension plan costs represent the total cost for the Erie Insurance Group before reimbursements to Indemnity from the Exchange and EFL.