Pension Plans and Postretirement Health Care and Life Insurance Benefit Plans

6 Months Ended

Jun. 30, 2011

Pension Plans and Postretirement Health Care and Life Insurance Benefit Plans [Abstract]

Pension Plans and Postretirement Health Care and Life Insurance Benefit Plans

10. Pension Plans and Postretirement Health Care and Life Insurance Benefit Plans

Components of Net Periodic Benefit Cost

Total net periodic benefit cost for the three months ended June 30, 2011 and 2010 includes the following components:

	Pension Benefits						Other Postretirement Benefits
	2011			2010			2011			2010
Service cost	$	24		$	24		$	1		$	1
Interest cost		66			63			5			6
Expected return on plan assets		(75	)		(72	)		(4	)		(3	)
Settlement expense		—			20			—			—
Amortization of prior service credit		(3	)		(3	)		—			—
Amortization of actuarial loss		42			28			—			—
Net periodic benefit cost	$	54		$	60		$	2		$	4

Total net periodic benefit cost for the six months ended June 30, 2011 and 2010 includes the following components:

	Pension Benefits						Other Postretirement Benefits
	2011			2010			2011			2010
Service cost	$	52		$	51		$	2		$	3
Interest cost		130			125			10			11
Expected return on plan assets		(149	)		(143	)		(7	)		(6	)
Settlement expense		—			20			—			—
Amortization of prior service credit		(5	)		(5	)		—			—
Amortization of actuarial loss		79			54			—			—
Net periodic benefit cost	$	107		$	102		$	5		$	8