Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash Flows from Operating Activities:
Net income (loss)	$ 209	$ 158
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	75	78
Deferred tax provision (benefit)	8	9
Equity in earnings of affiliated companies	(4)	(3)
Share-based compensation	14	13
Other non-cash (income) expense	7	52
Cash dividends received from equity affiliates	12	1
Changes in assets and liabilities:
Accounts and notes receivable	(30)	(43)
Inventories	(8)	38
Prepaid expenses and other assets	(17)	(11)
Accounts payable and accrued liabilities	(76)	(20)
Income taxes payable		(6)
Other liabilities	7	15
Cash provided by (used in) operating activities	197	281
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(149)	(97)
Cash paid for asset acquisition	(27)
Other	2	2
Cash provided by (used in) investing activities	(174)	(95)
Cash Flows from Financing Activities:
Proceeds from issuance (repayments) of commercial paper, net	145	(85)
Proceeds from long-term debt	6	0
Repayments of long-term debt	(4)	(9)
Purchases of common stock	(89)	(57)
Proceeds from sales of common stock	2	13
Cash dividends paid to noncontrolling interests	(20)	(12)
Cash dividends paid to common stockholders	(47)	(45)
Cash provided by (used in) financing activities	(7)	(195)
Effects of exchange rate changes on cash	(26)	(23)
Increase (decrease) in cash and cash equivalents	(10)	(32)
Cash and cash equivalents at beginning of period	223	238
Cash and cash equivalents at end of period	$ 213	$ 206