Pension Plans and Postretirement Health Care and Life Insurance Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

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

Components of Net Periodic Benefit Cost

	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

	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