Postretirement Plans (Tables)

12 Months Ended

Sep. 30, 2011

Postretirement Plans [Abstract]

Components Of Net Postretirement Benefits Expense

	2009		2010		2011
Service cost	$	4		5		3
Interest cost		30		24		17
Net amortization		15		1		(7	)
Net postretirement expense	$	49		30		13

Reconciliations Of Actuarial Present Value Of Accumulated Postretirement Benefit Obligations

	2010			2011
Benefit obligation, beginning	$	499			417
Service cost		5			3
Interest cost		24			17
Actuarial (gain) loss		(36	)		(25	)
Benefits paid		(32	)		(20	)
Plan amendments		(34	)		-
Acquisitions/divestitures and other		(9	)		-
Benefit obligation, ending (recognized in balance sheet)	$	417			392