Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash Flows from Operating Activities:
Net income (loss)	$ 322	$ 278
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	114	114
Deferred tax provision (benefit)	9	7
Equity in earnings of affiliated companies	(5)	(5)
Share-based compensation	19	19
Other non-cash (income) expense	15	60
Cash dividends received from equity affiliates	13	1
Changes in assets and liabilities:
Accounts and notes receivable	47	(47)
Inventories	19	27
Prepaid expenses and other assets	(25)	(14)
Accounts payable and accrued liabilities	(79)	38
Income taxes payable	(10)	(6)
Other liabilities	7	16
Cash provided by (used in) operating activities	446	488
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(210)	(149)
Cash paid for asset acquisition	(27)
Other	(2)	3
Cash provided by (used in) investing activities	(239)	(146)
Cash Flows from Financing Activities:
Proceeds from issuance (repayments) of commercial paper, net	52	(123)
Proceeds from short-term borrowings	14
Repayments of short-term borrowings	(11)	(1)
Proceeds from long-term debt	15	14
Repayments of long-term debt	(5)	(29)
Purchases of common stock	(129)	(106)
Proceeds from sales of common stock	2	15
Cash dividends paid to noncontrolling interests	(57)	(27)
Cash dividends paid to common stockholders	(71)	(69)
Cash provided by (used in) financing activities	(190)	(326)
Effects of exchange rate changes on cash	(1)	(57)
Increase (decrease) in cash and cash equivalents	16	(41)
Cash and cash equivalents at beginning of period	223	238
Cash and cash equivalents at end of period	$ 239	$ 197