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Revenue Contract Balances (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Contract assets $ 3 $ 2 $ 2 $ 3
Contract assets, additions/(deletions) 1 (1)    
Contract with Customer, Asset, Reclassified to Receivable [1] 0 0    
Long-term contract assets   1   1
Contract with Customer, Asset Increase (Decrease), Noncurrent   0    
Contract With Customer Non Current Asset Reclassified To Receivable [Line Items] [1]   0    
Long-term deferred revenue 317   317  
Liability, change in timeframe, performance obligation satisfied, revenue recognized 0 0    
Nonrelated Party [Member]        
Deferred revenue 71 66 84 59
Deferred revenue, revenue recognized [1] (18) (12)    
Deferred Revenue, Additions 5 19    
Long-term deferred revenue 315 346 315 344
Long-term deferred revenue, additions/(deletions) 0 2    
Long-term deferred revenue, revenue recognized [1] 0 0    
Related Party [Member]        
Deferred revenue 109   106  
Deferred revenue, revenue recognized [1] (22) (20)    
Deferred Revenue, Additions 21 27    
Deferred Revenue from Contracts with Customers, Current 70 54 71 47
Long-term deferred revenue 102   110  
Long-term deferred revenue, additions/(deletions) (3) 0    
Long-term deferred revenue, revenue recognized [1] 0 0    
Deferred Revenue from Contracts with Customers, Noncurrent $ 41 $ 29 $ 44 $ 29
[1] No significant revenue was recognized related to past performance obligations in the current periods.