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CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Consolidating Balance Sheets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
ScheduleOfCondensedFinancialStatements [Line Items]        
Total current assets $ 1,024 $ 929    
Total property, plant and equipment, net 5,680 2,770    
Investments in consolidated subsidiaries 0 0    
Deferred tax asset 73 132    
Investment in unconsolidated subsidiaries 86 19    
Other assets 272 148    
TOTAL ASSETS 7,135 3,998    
Total current liabilities 980 616    
Long-term debt, net 1,132 540    
Asset retirement obligations 995 422    
Other long-term liabilities 377 201    
Amounts due to (from) affiliates 0      
Deferred tax liability 113 0    
Total equity attributable to common stock 3,538 2,219 $ 1,864 $ 1,688
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY 7,135 3,998    
Eliminations        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total current assets 0 0    
Total property, plant and equipment, net 0 0    
Investments in consolidated subsidiaries (19,887) (3,647)    
Deferred tax asset 0 0    
Investment in unconsolidated subsidiaries 0 0    
Other assets 0 0    
TOTAL ASSETS (19,887) (3,647)    
Total current liabilities 0 0    
Long-term debt, net 0 0    
Asset retirement obligations 0 0    
Other long-term liabilities 0 0    
Amounts due to (from) affiliates 0      
Deferred tax liability 0      
Total equity attributable to common stock (19,887) (3,647)    
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (19,887) (3,647)    
Parent | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total current assets 437 511    
Total property, plant and equipment, net 14 14    
Investments in consolidated subsidiaries 4,869 2,311    
Deferred tax asset 73 132    
Investment in unconsolidated subsidiaries 0 0    
Other assets 113 12    
TOTAL ASSETS 5,506 2,980    
Total current liabilities 224 142    
Long-term debt, net 1,132 540    
Asset retirement obligations 0 0    
Other long-term liabilities 114 79    
Amounts due to (from) affiliates 385      
Deferred tax liability 113      
Total equity attributable to common stock 3,538 2,219    
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY 5,506 2,980    
Combined Unrestricted Subsidiaries | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total current assets 46 20    
Total property, plant and equipment, net 31 12    
Investments in consolidated subsidiaries (32) (11)    
Deferred tax asset 0 0    
Investment in unconsolidated subsidiaries 27 19    
Other assets 58 36    
TOTAL ASSETS 130 76    
Total current liabilities 14 13    
Long-term debt, net 0 0    
Asset retirement obligations 0 0    
Other long-term liabilities 138 73    
Amounts due to (from) affiliates 0      
Deferred tax liability 0      
Total equity attributable to common stock (22) (10)    
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY 130 76    
Combined Restricted Subsidiaries | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total current assets 541 398    
Total property, plant and equipment, net 5,635 2,744    
Investments in consolidated subsidiaries 15,050 1,347    
Deferred tax asset 0 0    
Investment in unconsolidated subsidiaries 59 0    
Other assets 101 100    
TOTAL ASSETS 21,386 4,589    
Total current liabilities 742 461    
Long-term debt, net 0 0    
Asset retirement obligations 995 422    
Other long-term liabilities 125 49    
Amounts due to (from) affiliates (385)      
Deferred tax liability 0      
Total equity attributable to common stock 19,909 3,657    
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 21,386 $ 4,589