v3.26.1
CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Condensed Financial Statements [Line Items]    
Total operating revenues $ 119 $ 912
Total costs and other 830 726
Non-operating (loss) income (49) (24)
(LOSS) INCOME BEFORE INCOME TAXES (760) 162
Income tax benefit (provision) 49 (47)
NET (LOSS) INCOME (711) 115
Eliminations    
Condensed Financial Statements [Line Items]    
Total operating revenues (39) (25)
Total costs and other (38) (25)
Non-operating (loss) income 0 0
(LOSS) INCOME BEFORE INCOME TAXES (1) 0
Income tax benefit (provision) 0 0
NET (LOSS) INCOME (1) 0
Parent | Reportable Legal Entities    
Condensed Financial Statements [Line Items]    
Total operating revenues 1 3
Total costs and other 119 66
Non-operating (loss) income (48) (23)
(LOSS) INCOME BEFORE INCOME TAXES (166) (86)
Income tax benefit (provision) 49 (47)
NET (LOSS) INCOME (117) (133)
Combined Unrestricted Subsidiaries | Reportable Legal Entities    
Condensed Financial Statements [Line Items]    
Total operating revenues 17 0
Total costs and other 37 20
Non-operating (loss) income (3) (3)
(LOSS) INCOME BEFORE INCOME TAXES (23) (23)
Income tax benefit (provision) 0 0
NET (LOSS) INCOME (23) (23)
Combined Restricted Subsidiaries | Reportable Legal Entities    
Condensed Financial Statements [Line Items]    
Total operating revenues 140 934
Total costs and other 712 665
Non-operating (loss) income 2 2
(LOSS) INCOME BEFORE INCOME TAXES (570) 271
Income tax benefit (provision) 0 0
NET (LOSS) INCOME $ (570) $ 271