v3.25.4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue from Contracts with Customers, Oil and Natural Gas Properties, Royalty Income Receivable, Concentrations and Related Party Transactions (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
a
lease
$ / Boe
Dec. 31, 2024
USD ($)
$ / Boe
Dec. 31, 2023
USD ($)
a
leaseExtension
lease
$ / Boe
Debt Instrument [Line Items]      
Depletion $ 607 $ 214 $ 146
Estimated future net revenue discounted rate per annum 10.00%    
Royalty income receivable, expected payment period 3 months    
Related Party      
Debt Instrument [Line Items]      
Royalty income receivable $ 88 31  
Lease bonus income $ 24 0 108
Number of new leases | lease 18    
Area of lease land | a 2,356    
Related Party | Midland County, Texas      
Debt Instrument [Line Items]      
Lease bonus income     $ 96
Number of new leases | lease     1
Related Party | Martin, Midland, Pecos, and Wheelers Counties, Texas      
Debt Instrument [Line Items]      
Number of new leases | lease     9
Area of lease land | a     703
Related Party | Martin County, Texas      
Debt Instrument [Line Items]      
Area of lease land | a     25
Number of lease extensions | leaseExtension     2
Royalty Income Receivable | Affiliated Entity      
Debt Instrument [Line Items]      
Royalty income receivable $ 88 $ 31  
Diamondback Energy, Inc. | Royalty Interest Revenue | Customer Concentration Risk      
Debt Instrument [Line Items]      
Percent of total royalty interest revenue 55.00% 54.00% 61.00%
ExxonMobil Corporation | Royalty Interest Revenue | Customer Concentration Risk      
Debt Instrument [Line Items]      
Percent of total royalty interest revenue 14.00%    
Pioneer Natural Resources | Royalty Interest Revenue | Customer Concentration Risk      
Debt Instrument [Line Items]      
Percent of total royalty interest revenue   11.00%  
Oil and Gas Properties      
Debt Instrument [Line Items]      
Average depletion rate per barrel equivalent unit of production (usd per BOE) | $ / Boe 17.48 11.77 10.20
Depletion $ 607 $ 214 $ 146
Minimum      
Debt Instrument [Line Items]      
Settlement statements received, after production delivered, period 30 days    
Maximum      
Debt Instrument [Line Items]      
Settlement statements received, after production delivered, period 90 days