Leases (Tables)

12 Months Ended

Sep. 30, 2023

Leases [Abstract]

Components of Company's Lease Costs

The components of the Company’s lease costs were as follows:

	Years Ended September 30
	2023		2022		2021
	(In millions)
Operating lease cost	$	26	$	23	$	25
Finance lease cost		6		6		7
Total lease cost	$	32	$	29	$	32

Supplemental Cash Flow Information Related to Company's Leases

Supplemental cash flow information related to the Company’s leases was as follows:

	Years Ended September 30
	2023		2022		2021
	(In millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	18	$	17	$	20
Operating cash flows from finance leases		2		2		2
Financing cash flows from finance leases		3		4		3
Right-of-use assets obtained in exchange for new operating lease liabilities	$	11	$	14	$	6
Right-of-use assets obtained in exchange for new finance lease liabilities	$	4	$	1	$	4

Supplemental Balance Sheet Information Related to Company's Leases

Supplemental balance sheet information related to the Company’s leases was as follows:

Description	Balance Sheet Classification	September 30, 2023		September 30, 2022
		(In millions)
Lease ROU assets:
Operating	Other assets	$	101	$	96
Finance	Net property, plant and equipment		39		41
Total lease ROU assets		$	140	$	137
Lease liabilities:
Current:
Operating	Accounts payable and accrued liabilities	$	15	$	14
Finance	Current portion of long-term debt		4		3
Long-term:
Operating	Other liabilities		84		83
Finance	Long-term debt		24		26
Total lease liabilities		$	127	$	126

Weighed Average Remaining Lease Term and Discount Rates

The following table presents the weighted-average remaining lease term and discount rates for the Company’s leases:

Description	September 30, 2023			September 30, 2022
Weighted-average remaining lease term (years):
Operating leases		15			15
Finance leases		9			10
Weighted-average discount rate:
Operating leases		3.28	%		2.97	%
Finance leases		5.38	%		5.40	%

Future Minimum Lease Payments Under Non-cancelable Operating and Finance Leases

Future minimum lease payments under non-cancelable operating and finance leases as of September 30, 2023 were as follows:

Years Ended September 30	Operating leases		Finance leases
	(In millions)
2024	$	18	$	5
2025		16		4
2026		13		4
2027		12		3
2028		10		3
2029 and thereafter		51		15
Total lease payments		120		34
Less: imputed interest		21		6
Total	$	99	$	28