Employee Benefit Plans (Tables)

9 Months Ended

Jun. 30, 2020

Compensation And Retirement Disclosure [Abstract]

Net Periodic Defined Benefit Pension Costs

Net periodic defined benefit pension costs include the following:

	Three Months Ended June 30
	2020						2019
	Pension Benefits
	U.S.			Foreign			U.S.			Foreign
	(In millions)
Service cost	$	—		$	1		$	1		$	2
Interest cost		1			1			1			1
Expected return on plan assets		(1	)		(2	)		(2	)		(2	)
Amortization of prior service costs (credit)		—			—			—			2
Amortization of actual loss		—			1			—			1
Net periodic benefit (credit) cost	$	—		$	1		$	—		$	4

	Nine Months Ended June 30
	2020						2019
	Pension Benefits
	U.S.			Foreign			U.S.			Foreign
	(In millions)
Service cost	$	1		$	4		$	1		$	5
Interest cost		3			3			4			4
Expected return on plan assets		(3	)		(7	)		(7	)		(8	)
Amortization of prior service cost (credit)		—			—			—			2
Amortization of actuarial loss		—			2			—			2
Settlement and curtailment gain		—			—			—			(6	)
Net periodic benefit (credit) cost	$	1		$	2		$	(2	)	$	(1	)