Employee Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2012

Employee Retirement Plans [Abstract]

Summary Of The Components Of Net Periodic Benefit Cost

	Pension benefits				Postretirement benefits
	Three months ended March 31,				Three months ended March 31,
	2012		2011		2012		2011
Service cost	$	15	$	14	$	3	$	4
Interest cost		38		38		11		12
Expected return on plan assets		(40)		(41)
Amortization of net loss		17		18		4		5
Amortization of prior service cost		1		2		(1)		(1)
Total pension and postretirement benefit expense	$	31	$	31	$	17	$	20