Employee Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2011

Employee Retirement Plans

Defined Benefit Pension And Postretirement Health Care And Life Insurance Plans

	Pension benefits								Postretirement benefits
	Three months ended June 30,				Six months ended June 30,				Three months ended June 30,				Six months ended June 30,
	2011		2010		2011		2010		2011		2010		2011		2010
Service cost	$	13	$	11	$	27	$	23	$	4	$	4	$	8	$	7
Interest cost		39		38		77		77		12		12		24		25
Expected return on plan assets		(40)		(42)		(81)		(84)
Amortization of net loss		19		12		37		25		4		5		9		9
Amortization of prior service cost		2		3		4		5		(2)		(3)		(3)		(4)
Total pension and postretirement benefit expense	$	33	$	22	$	64	$	46	$	18	$	18	$	38	$	37