Deferred Revenue - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	$ 44	$ 38	$ 39
Deferred revenue non-current liabilities	94	$ 93	95
ETC contracts
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	29		30
Deferred revenue non-current liabilities	$ 86		$ 86