Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Cash Flows from Operating Activities:
Net income (loss)	$ 376	$ 424	$ 484
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	154	151	144
Loss on sale of a business			3
Gain on sale of land			(1)
Deferred tax provision (benefit)	32	(37)	(156)
Equity in net income of affiliated companies	(7)	(6)	(5)
Share-based compensation	24	25	20
Other non-cash (income) expense	24	63	4
Cash dividends received from equity affiliates	13	2	2
Changes in assets and liabilities:
Accounts and notes receivable	76	(26)	153
Inventories	47	41	96
Prepaid expenses and other assets	(1)	2	1
Accounts payable and accrued liabilities	(67)	42	(152)
Income taxes payable	(8)	3	(4)
Other liabilities	2	8	6
Cash provided by operating activities	665	692	595
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(274)	(241)	(244)
Proceeds from sale of a business			6
Asset acquisition	(27)
Proceeds from sale of land			7
Proceeds from insurance settlements			12
Other	3	6	5
Cash used in investing activities	(298)	(235)	(214)
Cash Flows from Financing Activities:
Proceeds from short-term borrowings	19		24
Repayments of short-term borrowings	(11)	(1)	(48)
Proceeds from issuance of (repayments of) commercial paper, net	(39)	(127)	(149)
Proceeds from long-term debt, net of issuance costs	15	15	84
Repayments of long-term debt	(7)	(30)	(90)
Purchases of common stock	(168)	(172)	(98)
Proceeds from sales of common stock	8	20	4
Cash dividends paid to noncontrolling interests	(57)	(27)	(42)
Cash dividends paid to common stockholders	(96)	(93)	(88)
Cash provided by (used in) financing activities	(336)	(415)	(403)
Effects of exchange rate changes on cash	4	(57)	54
Increase (decrease) in cash, cash equivalents	35	(15)	32
Cash, cash equivalents at beginning of year	223	238	206
Cash, cash equivalents at end of year	258	223	238
Non-cash investing activities and supplemental cash flow information:
Additions to property, plant and equipment included in Accounts payable and accrued liabilities	58	50	41
Income taxes paid	165	136	140
Interest paid	$ 79	$ 82	$ 85