v3.25.2
CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
ScheduleOfCondensedFinancialStatements [Line Items]        
Total operating revenues $ 978 $ 514 $ 1,890 $ 968
Total costs and other 711 477 1,437 941
Gain on asset divestitures 0 1 0 7
Non-operating (loss) income (25) (27) (49) (42)
INCOME (LOSS) BEFORE INCOME TAXES 242 11 404 (8)
Income tax provision (benefit) (70) (3) (117) 6
NET INCOME (LOSS) 172 8 287 (2)
Eliminations        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total operating revenues (16) (6) (40) (16)
Total costs and other (16) (6) (40) (16)
Gain on asset divestitures   0   0
Non-operating (loss) income 0 0 0 0
INCOME (LOSS) BEFORE INCOME TAXES 0 0 0 0
Income tax provision (benefit) 0 0 0 0
NET INCOME (LOSS) 0 0 0 0
Parent | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total operating revenues 2 7 5 13
Total costs and other 109 77 175 136
Gain on asset divestitures   0   0
Non-operating (loss) income (26) (21) (48) (34)
INCOME (LOSS) BEFORE INCOME TAXES (133) (91) (218) (157)
Income tax provision (benefit) (70) (3) (117) 6
NET INCOME (LOSS) (203) (94) (335) (151)
Combined Unrestricted Subsidiaries | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total operating revenues 0 0 0 0
Total costs and other 16 18 34 28
Gain on asset divestitures   0   0
Non-operating (loss) income (3) (7) (7) (11)
INCOME (LOSS) BEFORE INCOME TAXES (19) (25) (41) (39)
Income tax provision (benefit) 0 0 0 0
NET INCOME (LOSS) (19) (25) (41) (39)
Combined Restricted Subsidiaries | Reportable Legal Entities        
ScheduleOfCondensedFinancialStatements [Line Items]        
Total operating revenues 992 513 1,925 971
Total costs and other 602 388 1,268 793
Gain on asset divestitures   1   7
Non-operating (loss) income 4 1 6 3
INCOME (LOSS) BEFORE INCOME TAXES 394 127 663 188
Income tax provision (benefit) 0 0 0 0
NET INCOME (LOSS) $ 394 $ 127 $ 663 $ 188