Goodwill and Other Intangible Assets - Goodwill (Details) $ in Millions	3 Months Ended
	Dec. 31, 2021 USD ($)
Goodwill [Roll Forward]
Balance at September 30, 2021	$ 2,212
Currency translation and other	(3)
Balance at December 31, 2021	2,209
Americas
Goodwill [Roll Forward]
Balance at September 30, 2021	607
Currency translation and other	(1)
Balance at December 31, 2021	606
EMEA
Goodwill [Roll Forward]
Balance at September 30, 2021	354
Currency translation and other	(10)
Balance at December 31, 2021	344
Asia
Goodwill [Roll Forward]
Balance at September 30, 2021	1,251
Currency translation and other	8
Balance at December 31, 2021	$ 1,259