Deferred Revenue - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	$ 35	$ 41	$ 45
Deferred revenue non-current liabilities	101	$ 95	93
ETC contracts
Disaggregation of Revenue [Line Items]
Deferred revenue current liabilities	29		30
Deferred revenue non-current liabilities	$ 101		$ 92

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details