Segment Information (Details) $ in Millions	3 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Net sales	$ 3,480	$ 3,848
Corporate-related costs	(2)	9
Restructuring and impairment costs	(4)	(7)
Purchase accounting amortization	(14)	(11)
Restructuring related charges	(1)	(4)
Depreciation	(75)	(70)
Stock based compensation	(10)	(13)
Earnings (loss) before interest and income taxes	40	282
Net financing charges	(50)	(59)
Other pension income (expense)	1	2
Income (loss) before income taxes	(9)	225
Non-cash impairment charges	7	6
Integration-related costs	2	4
BRAZIL
Segment Reporting Information [Line Items]
One-time gain		8
YFAS
Segment Reporting Information [Line Items]
Gain on previously held interest		5
EMEA
Segment Reporting Information [Line Items]
Non-cash impairment charges	7	6
Operating Segments | Americas
Segment Reporting Information [Line Items]
Net sales	1,498	1,737
Adjusted EBITDA	9	132
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Net sales	1,230	1,604
Adjusted EBITDA	43	114
Operating Segments | Asia
Segment Reporting Information [Line Items]
Net sales	784	554
Adjusted EBITDA	114	151
Eliminations
Segment Reporting Information [Line Items]
Net sales	(32)	(47)
Corporate-Related Costs
Segment Reporting Information [Line Items]
Corporate-related costs	$ (20)	$ (19)