Pension And Postretirement Plan Expenses

9 Months Ended

Jun. 30, 2012

Pension And Postretirement Plan Expenses [Abstract]

Pension And Postretirement Plan Expenses

Net periodic pension and net postretirement plan expenses are summarized as follows (in millions):

	Three Months Ended June 30,									Nine Months Ended June 30,
	Pension					Postretirement				Pension				Postretirement
	2011			2012		2011		2012		2011		2012		2011		2012
Service cost	$	21		21		1		1		62		62		3		2
Interest cost	55			56		4		4		166		167		13		12
Expected return on plan assets	(82		)	(80	)					(246	)	(239	)
Net amortization	42			46		(2	)	(3	)	127		138		(6	)	(9	)
Total	$	36		43		3		2		109		128		10		5