Financial Information by Segment - Schedule of Income (Loss) from Continuing Operations before Income Taxes and Equity in Earnings of Affiliated Companies for Unallocated and Other (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Interest expense	$ (24)	$ (15)	$ (69)	$ (38)
Gain on bargain purchase of a business				24
Gain on sale of land			1	17
Loss on sale of business and asset impairment charge (Note D)		2	3	206
Unallocated and Other [Member]
Segment Reporting Information [Line Items]
Interest expense	(24)	(15)	(69)	(38)
Unallocated corporate costs	(11)	(15)	(42)	(45)
General unallocated income (expense)	3	(3)	9	(3)
Less: Equity in earnings of affiliated companies, net of tax	1	3	4	7
Income from continuing operations before income taxes and equity in earnings of affiliated companies	(34)	(24)	(113)	(278)
Certain Items [Member]
Segment Reporting Information [Line Items]
Gain on bargain purchase of a business				24
Gain on sale of land		17	1	17
Loss on sale of business and asset impairment charge (Note D)		(2)	(3)	(206)
Legal and environmental matters and reserves		(1)	(2)	(9)
Acquisition and integration-related charges	(1)	(1)	(2)	(4)
Divestiture related charges				(5)
Global restructuring activities		(1)		(3)
Other			(1)	1
Total certain items, pre-tax	$ (1)	$ 12	$ (7)	$ (185)