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Revenue Contract Balance Rollforward (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Beginning Balance Contract with Customer, Asset, Gross $ 2 $ 3  
Contract with Customer, Asset Increase (Decrease) 13 0  
Contract with Customer, Asset, Reclassified to Receivable [1] 0 (1)  
Ending Balance Contract with Customer, Asset, Gross 15 2  
Contract with Customer, Asset Increase (Decrease), Noncurrent 4 (1)  
Contract with Customer, Non Current Asset Reclassified to Receivable [1] 0 0  
Contract with Customer, Asset, before Allowance for Credit Loss, Noncurrent 4 0 $ 1
Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized 0 0  
Nonrelated Party      
Beginning Balance Deferred Revenue, Current 84 59  
Deferred Revenue, Additions 9 86  
Deferred Revenue, Revenue Recognized [1] (80) (61)  
Ending Balance Deferred Revenue, Current 13 84  
Deferred Revenue, Noncurrent, Period Increase (Decrease) (198) [2] (29)  
Deferred Revenue, Noncurrent, Revenue Recognized [1] 0 0  
Deferred Revenue from Contracts with Customers, Noncurrent 117 315 344
Nonrelated Party | Rockies Operations      
Deferred Revenue, Noncurrent, Period Increase (Decrease) 180    
Related Party      
Beginning Balance Deferred Revenue, Current 106    
Deferred Revenue, Additions 86 90  
Deferred Revenue, Revenue Recognized [1] (91) (66)  
Ending Balance Deferred Revenue, Current 107 106  
Deferred Revenue from Contracts with Customers, Current 66 71 47
Deferred Revenue, Noncurrent, Period Increase (Decrease) 1 15  
Deferred Revenue, Noncurrent, Revenue Recognized [1] 0 0  
Deferred Revenue from Contracts with Customers, Noncurrent $ 45 $ 44 $ 29
[1] No significant revenue was recognized related to past performance obligations in the period presented.
[2] Long-term deferred revenue deletions include $180 million removed in connection with the Rockies divestiture. See Note 4 for additional information related to the Rockies divestiture.