Segment Information - Schedule of Disaggregation of Revenue by Geographical Market (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 3,750	$ 3,912	$ 7,410	$ 7,611
Americas
Disaggregation of Revenue [Line Items]
Net sales	1,660	1,761	3,307	3,485
United States
Disaggregation of Revenue [Line Items]
Net sales	1,491	1,629	2,913	3,182
Mexico
Disaggregation of Revenue [Line Items]
Net sales	628	615	1,260	1,222
Other Americas
Disaggregation of Revenue [Line Items]
Net sales	61	87	147	182
EMEA
Disaggregation of Revenue [Line Items]
Net sales	1,370	1,401	2,638	2,583
Germany
Disaggregation of Revenue [Line Items]
Net sales	254	305	478	553
Poland
Disaggregation of Revenue [Line Items]
Net sales	249	248	498	454
Czech Republic
Disaggregation of Revenue [Line Items]
Net sales	220	261	415	488
Other EMEA
Disaggregation of Revenue [Line Items]
Net sales	1,021	986	1,970	1,811
Asia
Disaggregation of Revenue [Line Items]
Net sales	742	774	1,512	1,595
China
Disaggregation of Revenue [Line Items]
Net sales	336	307	710	705
Korea
Disaggregation of Revenue [Line Items]
Net sales	128	140	250	279
Thailand
Disaggregation of Revenue [Line Items]
Net sales	126	154	248	295
Japan
Disaggregation of Revenue [Line Items]
Net sales	86	103	179	190
Other Asia
Disaggregation of Revenue [Line Items]
Net sales	78	79	149	143
Inter-segment elimination
Disaggregation of Revenue [Line Items]
Net sales	(22)	(24)	(47)	(52)
Inter-segment elimination | Americas
Disaggregation of Revenue [Line Items]
Net sales	(520)	(570)	(1,013)	(1,101)
Inter-segment elimination | EMEA
Disaggregation of Revenue [Line Items]
Net sales	(374)	(399)	(723)	(723)
Inter-segment elimination | Asia
Disaggregation of Revenue [Line Items]
Net sales	$ (12)	$ (9)	$ (24)	$ (17)