Pension And Postretirement Plan Expenses (Tables)

6 Months Ended

Mar. 31, 2012

Pension And Postretirement Plan Expenses [Abstract]

Summary Of Net Periodic Pension And Net Postretirement Plan Expenses

	Three Months Ended March 31,									Six Months Ended March 31,
	Pension					Postretirement				Pension				Postretirement
	2011			2012		2011		2012		2011		2012		2011		2012
Service cost	$	20		20		1		—		41		41		2		1
Interest cost	56			55		5		4		111		111		9		8
Expected return on plan assets	(82		)	(79	)					(164	)	(159	)
Net amortization	43			46		(2	)	(3	)	85		92		(4	)	(6	)
Total	$	37		42		4		1		73		85		7		3