Revenues - Contract Assets and Liabilities (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Contract assets, net of current expected credit losses | $ 1 | $ 1 |
| Change In Contract With Customer, Liability [Roll Forward] | ||
| Deferred revenues, beginning of period | 144 | |
| Cash received but not yet recognized in revenue | 190 | |
| Revenue recognized from prior period deferral | (144) | |
| Deferred revenues, end of period | 190 | |
| Affiliate [Member] | ||
| Change In Contract With Customer, Liability [Roll Forward] | ||
| Deferred revenues, beginning of period | 8 | |
| Cash received but not yet recognized in revenue | 5 | |
| Revenue recognized from prior period deferral | (8) | |
| Deferred revenues, end of period | $ 5 |