v3.26.3
CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Condensed Financial Statements [Line Items]        
Total operating revenues $ 421 $ 855 $ 1,837 $ 2,745
Total costs and other 828 756 2,444 2,193
Loss on asset divestitures 0 (1) 0 (1)
Non-operating (loss) income (21) (23) (123) (72)
(LOSS) INCOME BEFORE INCOME TAXES (428) 75 (730) 479
Income tax benefit (provision) 113 (11) 218 (128)
NET (LOSS) INCOME (315) 64 (512) 351
Eliminations        
Condensed Financial Statements [Line Items]        
Total operating revenues (43) (21) (121) (61)
Total costs and other (23) (19) (116) (59)
Loss on asset divestitures   0   0
Non-operating (loss) income 0 0 0 0
(LOSS) INCOME BEFORE INCOME TAXES (20) (2) (5) (2)
Income tax benefit (provision) 0 0 0 0
NET (LOSS) INCOME (20) (2) (5) (2)
Parent | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 0 1 3 6
Total costs and other 93 90 307 265
Loss on asset divestitures   0   0
Non-operating (loss) income (22) (22) (124) (70)
(LOSS) INCOME BEFORE INCOME TAXES (115) (111) (428) (329)
Income tax benefit (provision) 113 (11) 218 (128)
NET (LOSS) INCOME (2) (122) (210) (457)
Combined Unrestricted Subsidiaries | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 51 0 77 0
Total costs and other 41 13 127 47
Loss on asset divestitures   0   0
Non-operating (loss) income (4) (4) (12) (11)
(LOSS) INCOME BEFORE INCOME TAXES 6 (17) (62) (58)
Income tax benefit (provision) 0 0 0 0
NET (LOSS) INCOME 6 (17) (62) (58)
Combined Restricted Subsidiaries | Reportable Legal Entities        
Condensed Financial Statements [Line Items]        
Total operating revenues 413 875 1,878 2,800
Total costs and other 717 672 2,126 1,940
Loss on asset divestitures   (1)   (1)
Non-operating (loss) income 5 3 13 9
(LOSS) INCOME BEFORE INCOME TAXES (299) 205 (235) 868
Income tax benefit (provision) 0 0 0 0
NET (LOSS) INCOME $ (299) $ 205 $ (235) $ 868