Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income		$ 121	$ 199
Adjustments to reconcile net income to cash flows from operating activities
Depreciation and amortization		39	30
Debt issuance cost and discount amortization		2	2
Deferred income taxes		71	0
Equity income from affiliates		(12)	(10)
Distributions from equity affiliates		8	7
Pension contributions		(13)	(16)
Gain on pension and other postretirement plan remeasurements		0	(8)
Gain on sale of assets		(4)	0
Foreign currency exchange loss		3	0
Stock-based compensation expense		10	6
Change in assets and liabilities
Accounts receivable	[1]	(80)	(39)
Inventories	[1]	(23)	(41)
Payables and accrued liabilities	[1]	12	43
Other assets and liabilities	[1]	47	(16)
Total cash provided by operating activities		181	157
Cash flows from investing activities
Additions to property, plant and equipment		(51)	(43)
Acquisitions, net of cash acquired		(71)	(66)
Proceeds from sale of operations		5	0
Total cash used in investing activities		(117)	(109)
Cash flows from financing activities
Net transfers from Ashland		0	5
Proceeds from borrowings, net of issuance costs		170	75
Repayments on borrowings		(39)	(87)
Repurchases of common stock		(220)	(50)
Purchase of additional ownership in subsidiary		(15)	0
Cash dividends paid		(45)	(30)
Other financing activities		(6)	0
Total cash used in financing activities		(155)	(87)
Effect of currency exchange rate changes on cash and cash equivalents		(3)	(1)
Decrease in cash and cash equivalents		(94)	(40)
Cash and cash equivalents - beginning of period		201	172
Cash and cash equivalents - end of period		$ 107	$ 132

[1] Excludes changes resulting from operations acquired or sold.