v3.26.1
CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Condensed Financial Statements [Line Items]        
Total operating revenues $ 1,297 $ 978 $ 1,416 $ 1,890
Total costs and other 786 711 1,616 1,437
Non-operating (loss) income (53) (25) (102) (49)
INCOME (LOSS) BEFORE INCOME TAXES 458 242 (302) 404
Income tax benefit (provision) 56 (70) 105 (117)
NET INCOME (LOSS) 514 172 (197) 287
Eliminations        
Condensed Financial Statements [Line Items]        
Total operating revenues (38) (16) (77) (40)
Total costs and other (35) (16) (73) (40)
Non-operating (loss) income 0 0 0 0
INCOME (LOSS) BEFORE INCOME TAXES (3) 0 (4) 0
Income tax benefit (provision) 0 0 0 0
NET INCOME (LOSS) (3) 0 (4) 0
Parent | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 0 2 3 5
Total costs and other 94 109 212 175
Non-operating (loss) income (53) (26) (102) (48)
INCOME (LOSS) BEFORE INCOME TAXES (147) (133) (311) (218)
Income tax benefit (provision) 56 (70) 105 (117)
NET INCOME (LOSS) (91) (203) (206) (335)
Combined Unrestricted Subsidiaries | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 10 0 27 0
Total costs and other 38 16 75 34
Non-operating (loss) income (3) (3) (6) (7)
INCOME (LOSS) BEFORE INCOME TAXES (31) (19) (54) (41)
Income tax benefit (provision) 0 0 0 0
NET INCOME (LOSS) (31) (19) (54) (41)
Combined Restricted Subsidiaries | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 1,325 992 1,463 1,925
Total costs and other 689 602 1,402 1,268
Non-operating (loss) income 3 4 6 6
INCOME (LOSS) BEFORE INCOME TAXES 639 394 67 663
Income tax benefit (provision) 0 0 0 0
NET INCOME (LOSS) $ 639 $ 394 $ 67 $ 663