v3.26.1
Revenue Contract Balances (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Contract assets $ 1 $ 7 $ 15 $ 2
Contract assets, additions/(deletions) (14) 5    
Contract with Customer, Asset, Reclassified to Receivable [1] 0 0    
Long-term contract assets 4   4  
Contract with Customer, Asset Increase (Decrease), Noncurrent 0      
Contract With Customer Non Current Asset Reclassified To Receivable [1] 0      
Liability, change in timeframe, performance obligation satisfied, revenue recognized 0 0    
Nonrelated Party [Member]        
Deferred revenue 19 60 13 84
Deferred revenue, revenue recognized [1] (12) (38)    
Deferred Revenue, Additions 18 14    
Long-term deferred revenue, additions/(deletions) (9) (9)    
Long-term deferred revenue, revenue recognized [1] 0 0    
Deferred Revenue from Contracts with Customers, Noncurrent 108 306 117 315
Related Party [Member]        
Deferred revenue 101   107  
Deferred revenue, revenue recognized [1] (39) (42)    
Deferred Revenue, Additions 41 42    
Deferred Revenue from Contracts with Customers, Current 68 71 66 71
Long-term deferred revenue, additions/(deletions) 2 (4)    
Long-term deferred revenue, revenue recognized [1] 0 0    
Deferred Revenue from Contracts with Customers, Noncurrent $ 47 $ 40 $ 45 $ 44
[1] No significant revenue was recognized related to past performance obligations in the period presented.