Employee Benefit Plans (Tables)

9 Months Ended

Jun. 30, 2014

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Net Periodic Defined Benefit Pension and Other Postretirement Benefit Costs

Net periodic defined benefit pension and other postretirement benefit costs include the following:

	Three Months Ended June 30
	2014						2013						2014					2013
	Pension Benefits												Postretirement Benefits
	U.S.			Foreign			U.S.			Foreign			U.S.			Foreign		U.S.			Foreign
	(Dollars in millions)
Service cost	$	1		$	2		$	1		$	2		$	—		$	—	$	—		$	—
Interest cost		2			4			1			4			1			1		—			1
Expected return on plan assets		(3	)		(5	)		(2	)		(4	)		—			—		—			—
Amortization of prior service credit		—			—			—			—			(1	)		—		—			—
Amortization of actuarial loss		—			1			1			1			—			—		—			—
Net periodic benefit cost	$	—		$	2		$	1		$	3		$	—		$	1	$	—		$	1
	Nine Months Ended June 30
	2014						2013						2014					2013
	Pension Benefits												Postretirement Benefits
	U.S.			Foreign			U.S.			Foreign			U.S.			Foreign		U.S.			Foreign
	(Dollars in millions)
Service cost	$	2		$	7		$	4		$	7		$	—		$	—	$	—		$	—
Interest cost		6			12			4			11			2			1		1			1
Expected return on plan assets		(8	)		(15	)		(6	)		(13	)		—			—		—			—
Amortization of prior service credit		—			—			—			—			(2	)		—		(2	)		—
Amortization of actuarial loss		—			3			2			3			—			—		—			—
Net periodic benefit cost	$	—		$	7		$	4		$	8		$	—		$	1	$	(1	)	$	1