v3.26.1
RELATED PARTY TRANSACTIONS - Narrative (Details)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 12, 2026
$ / shares
shares
Oct. 01, 2025
county
Jun. 30, 2026
USD ($)
county
shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
county
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2024
director
shares
Nov. 28, 2025
shares
Related Party Transaction [Line Items]                
Shares repurchased, excluding excise tax | $     $ 141   $ 689      
SGF Underwriters | SGF FANG Holdings, LP                
Related Party Transaction [Line Items]                
Number of shares issued 12,650              
Sale of stock price (in usd per share) | $ / shares $ 170.18875              
Endeavor | Diamondback Energy, Inc.                
Related Party Transaction [Line Items]                
Ownership percentage by other parties     26.70%   26.70%   39.80%  
Endeavor Acquisition                
Related Party Transaction [Line Items]                
Acquisition of equity interest percentage             100.00%  
Number of shares issued in acquisition             117,270  
Endeavor Acquisition | Minimum                
Related Party Transaction [Line Items]                
Stockholders agreement, right to propose by counterparty, number of directors | director             1  
Endeavor Acquisition | Maximum                
Related Party Transaction [Line Items]                
Stockholders agreement, right to propose by counterparty, number of directors | director             4  
Water Services Agreement                
Related Party Transaction [Line Items]                
Related party transaction amounts | $     $ 66 $ 25 $ 133 $ 72    
Deep Blue                
Related Party Transaction [Line Items]                
Equity method interest investment ownership percentage   30.00% 30.00%   30.00%      
Agreement term   15 years            
Number of counties | county   12            
Related Party                
Related Party Transaction [Line Items]                
Number of counties | county     12   12      
Repurchase authorization (in shares)               3,000
Stock repurchased during period (in shares)     0   3,000      
Shares repurchased, excluding excise tax | $         $ 509      
Related Party | Deep Blue                
Related Party Transaction [Line Items]                
Agreement term         15 years