Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2022	Jun. 30, 2021
Income Tax Contingency [Line Items]
Income tax provision (benefit)	$ 20			$ 10			$ 65	$ 90
Income (loss) before income taxes	0			$ (39)			$ (45)	$ 308
Effective tax rate				(26.00%)			(144.00%)	(29.00%)
Income tax expense, decrease in deferred tax asset	12
Unrecognized tax benefits	463						$ 463
Unrecognized tax benefits that would impact effective tax rate	124						124
Net accrued interest	22						22
Interest and penalties accrued	$ 2						7
Pre-tax gain							(8)	$ 33
Retrospective recoveries of Brazil indirect tax credits							$ 0	38
SJA
Income Tax Contingency [Line Items]
Pre-tax gain				$ 33	$ 33			$ 33
Tax on gain on disposal of equity method investment					$ 5
Foreign Tax Authority | State Administration of Taxation, China
Income Tax Contingency [Line Items]
Tax benefit from temporary indirect tax rate reduction		$ 4
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil
Income Tax Contingency [Line Items]
Income tax provision (benefit)				10		$ 3
Indirect foreign tax credit			$ 3	11
Retrospective recoveries of Brazil indirect tax credits				$ 30		$ 8