Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities:
Net income (loss)	$ 155	$ 49
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	77	78
Deferred tax provision (benefit)	1	(23)
Employee benefit plan settlement	6
Equity in earnings of affiliated companies	(1)	(1)
Non-cash compensation	10	3
Other non-cash (income) expense	19	4
Cash dividends received from equity affiliates	1	1
Changes in assets and liabilities:
Accounts and notes receivable	(155)	56
Inventories	(80)	(8)
Prepaid expenses and other assets	(8)	(33)
Accounts payable and accrued liabilities	56	4
Income taxes payable	12	5
Other liabilities	(7)	(6)
Cash provided (used) by operating activities	86	129
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(69)	(119)
Cash paid for acquisition of businesses		(8)
Other	3	1
Cash provided (used) by investing activities	(66)	(126)
Cash Flows from Financing Activities:
Proceeds from issuance (repayments) of commercial paper, net	31	(33)
Proceeds from long-term debt	100	197
Repayments of long-term debt	(117)	(50)
Purchases of common stock	(2)	(44)
Proceeds from sales of common stock	2	3
Cash dividends paid to noncontrolling interests	(1)	(23)
Cash dividends paid to common stockholders	(40)	(40)
Cash provided (used) by financing activities	(27)	10
Effects of exchange rate changes on cash	6	(5)
Increase (decrease) in cash, cash equivalents and restricted cash	(1)	8
Cash, cash equivalents and restricted cash at beginning of period	151	169
Cash, cash equivalents and restricted cash at end of period	$ 150	$ 177