v3.26.1
Segment Reporting (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting          
Number Of Reportable Segments Not Disclosed Flag     segment    
Operating revenues $ 481 $ 392 $ 835 $ 690  
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below 149 130 283 252  
Depreciation, amortization and accretion 196 163 377 326  
General and administrative 14 10 25 20  
Transaction and integration costs 5 2 12 5  
Operating Income 117 87 138 87  
Equity in earnings of unconsolidated affiliates 11 7 16 12  
Other income, net 8 8 16 15  
Loss on debt extinguishment (3) 0 (5) 0  
Interest expense (105) (83) (206) (199)  
Net Income (Loss) 28 19 (41) (85)  
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests (229) (45) (413) (144)  
Net Income Attributable to Clearway Energy LLC 257 64 372 59  
Equity investments in affiliates 375 297 375 297 $ 291
Capital expenditures 47 51 129 89  
Total Assets 16,732 16,026 16,732 16,026 $ 16,444
As Previously Reported          
Segment Reporting          
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests   (50)   (161)  
Net Income Attributable to Clearway Energy LLC   69   76  
Adjustments          
Segment Reporting          
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests   5   17  
Net Income Attributable to Clearway Energy LLC   (5)   (17)  
Operating Segments          
Segment Reporting          
Operating revenues 481 392 835 690  
Operating Segments | Flexible Generation          
Segment Reporting          
Operating revenues 86 50 147 118  
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below 29 24 59 55  
Depreciation, amortization and accretion 28 28 56 56  
General and administrative 0 0 0 0  
Transaction and integration costs 0 0 0 0  
Operating Income 29 (2) 32 7  
Equity in earnings of unconsolidated affiliates 0 0 2 0  
Other income, net 1 1 2 2  
Loss on debt extinguishment 0   0    
Interest expense (8) (10) 16 (18)  
Net Income (Loss) 22 (11) 20 (9)  
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests 0 0 0 0  
Net Income Attributable to Clearway Energy LLC 22 (11) 20 (9)  
Equity investments in affiliates 70 73 70 73  
Capital expenditures 1 0 5 2  
Total Assets 1,770 1,879 1,770 1,879  
Operating Segments | Renewables & Storage          
Segment Reporting          
Operating revenues 395 342 688 572  
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below 120 106 224 197  
Depreciation, amortization and accretion 168 135 321 270  
General and administrative 0 0 0 0  
Transaction and integration costs 0 0 0 0  
Operating Income 107 101 143 105  
Equity in earnings of unconsolidated affiliates 11 7 14 12  
Other income, net 6 6 11 11  
Loss on debt extinguishment (3)   (5)    
Interest expense (65) (50) (122) (134)  
Net Income (Loss) 56 64 41 (6)  
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests (229) (45) (413) (144)  
Net Income Attributable to Clearway Energy LLC 285 109 454 138  
Equity investments in affiliates 305 224 305 224  
Capital expenditures 46 51 124 87  
Total Assets 14,876 14,083 14,876 14,083  
Operating Segments | Renewables & Storage | As Previously Reported          
Segment Reporting          
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests   (50)   (161)  
Net Income Attributable to Clearway Energy LLC   114   155  
Operating Segments | Renewables & Storage | Adjustments          
Segment Reporting          
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests   5   17  
Net Income Attributable to Clearway Energy LLC   (5)   (17)  
Corporate          
Segment Reporting          
Operating revenues 0 0 0 0  
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below 0 0 0 0  
Depreciation, amortization and accretion 0 0 0 0  
General and administrative 14 10 25 20  
Transaction and integration costs 5 2 12 5  
Operating Income (19) (12) (37) (25)  
Equity in earnings of unconsolidated affiliates 0 0 0 0  
Other income, net 1 1 3 2  
Loss on debt extinguishment 0   0    
Interest expense (32) (23) (68) (47)  
Net Income (Loss) (50) (34) (102) (70)  
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests 0 0 0 0  
Net Income Attributable to Clearway Energy LLC (50) (34) (102) (70)  
Equity investments in affiliates 0 0 0 0  
Capital expenditures 0 0 0 0  
Total Assets $ 86 $ 64 $ 86 $ 64