Subsequent Events (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Accumulated foreign currency translation losses	$ 10,614		$ 9,923	$ 9,180
Foreign currency translation [Member]
Accumulated foreign currency translation losses	(760)	$ (701)	$ (629)	$ (542)	$ (522)	$ (711)
RUSSIAN FEDERATION
Net Assets	$ 50
Percent of Consolidated Sales	1.50%
RUSSIAN FEDERATION | Foreign currency translation [Member]
Accumulated foreign currency translation losses	$ (145)