Employee Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2012

Employee Retirement Plans [Abstract]

Summary Of The Components Of Net Periodic Benefit Cost

	Pension benefits								Postretirement benefits
	Three months ended September 30,				Nine months ended September 30,				Three months ended September 30,				Nine months ended September 30,
	2012		2011		2012		2011		2012		2011		2012		2011
Service cost	$	16	$	13	$	46	$	40	$	3	$	3	$	9	$	11
Interest cost		38		39		114		116		11		12		33		36
Expected return on plan assets		(40)		(41)		(119)		(122)
Amortization of net loss		18		20		53		57		4		4		12		13
Amortization of prior service cost		1		2		3		6		(1)		(1)		(3)		(4)
Total pension and postretirement benefit expense	$	33	$	33	$	97	$	97	$	17	$	18	$	51	$	56