Retirement Plans and Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2011

Retirement Plans and Postretirement Benefits

Components of the net periodic benefit costs for the entity's defined benefit pension and postretirement benefit plans

Three months ended September 30	2011					2010
Net Periodic Benefit Costs	Pension Benefit			Postretirement Benefit		Pension Benefit			Postretirement Benefit
Service cost	$	5		$	6	$	4		$	5
Interest cost	7			11		8			11
Expected return on plan assets	(9		)	—		(8		)	—
Amortization of prior service cost	1			—		—			—
Recognized actuarial loss	4			8		3			6
Total	$	8		$	25	$	7		$	22

Nine months ended September 30	2011					2010
Net Periodic Benefit Costs	Pension Benefit			Postretirement Benefit		Pension Benefit			Postretirement Benefit
Service cost	$	15		$	17	$	13		$	14
Interest cost	22			34		23			33
Expected return on plan assets	(25		)	—		(24		)	—
Amortization of prior service cost	1			—		1			—
Recognized actuarial loss	10			23		9			19
Total	$	23		$	74	$	22		$	66