Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2013

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 September 30,						Nine months ended September 30,
	2013			2012			2013			2012
Service cost for benefits earned	$	7		$	5		$	20		$	16
Interest cost on benefits obligation	6			6			19			18
Expected return on plan assets	(8		)	(6		)	(23		)	(20		)
Prior service cost amortization	0			1			1			1
Net actuarial loss amortization	4			2			11			8
Pension plan cost	$	9		$	8		$	28		$	23