Deferred Revenue - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	$ 45	$ 41	$ 44
Deferred revenue non-current liabilities	93	$ 89	94
ETC contracts
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	30		29
Deferred revenue non-current liabilities	$ 92		$ 86