Goodwill and Other Intangible Assets - Goodwill (Details) $ in Millions	9 Months Ended
	Jun. 30, 2022 USD ($)
Goodwill [Roll Forward]
Balance at September 30, 2021	$ 2,212
Currency translation and other	(90)
Balance at June 30, 2022	2,122
Americas
Goodwill [Roll Forward]
Balance at September 30, 2021	607
Currency translation and other	1
Balance at June 30, 2022	608
EMEA
Goodwill [Roll Forward]
Balance at September 30, 2021	354
Currency translation and other	(38)
Balance at June 30, 2022	316
Asia
Goodwill [Roll Forward]
Balance at September 30, 2021	1,251
Currency translation and other	(53)
Balance at June 30, 2022	$ 1,198