Pension and Other Postretirement Benefits Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Schedule of Pension and Other Postretirement Benefits

	Pension Benefits
	U.S. Plans						Non-U.S. Plans
	Three Months Ended June 30,						Three Months Ended June 30,
	2018			2017			2018			2017
	(in millions)
Service cost	$	—		$	—		$	1		$	2
Interest cost	8			9			3			3
Expected return on plan assets	(17		)	(17		)	(5		)	(4		)
Amortization of actuarial loss	—			3			—			—
Settlement loss	3			9			—			—
Total net periodic benefit cost	$	(6	)	$	4		$	(1	)	$	1

	Pension Benefits
	U.S. Plans						Non-U.S. Plans
	Nine Months Ended June 30,						Nine Months Ended June 30,
	2018			2017			2018			2017
	(in millions)
Service cost	$	—		$	—		$	3		$	5
Interest cost	24			27			9			8
Expected return on plan assets	(52		)	(52		)	(15		)	(12		)
Amortization of actuarial loss	—			11			—			1
Settlement loss	3			22			—			—
Total net periodic benefit cost	$	(25	)	$	8		$	(3	)	$	2