v3.26.1
Acquisitions, Development and Divestitures - Development (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Business Combination [Line Items]          
Goodwill $ 2,247   $ 2,247   $ 2,247
Revenues 2,111 $ 2,025 4,885 $ 4,529  
Net income (loss) $ 230 183 682 597  
Indemnification for Safari sale/leaseback     $ 25    
Joint Venture Ownership Percentage, PPL 0.51   0.51    
Joint Venture Ownership Percentage, Blackstone Infrastructure 0.49   0.49    
Louisville Gas And Electric Co [Member]          
Business Combination [Line Items]          
Goodwill $ 389   $ 389   389
Revenues 398 378 995 883  
Net income (loss) 60 [1] 56 192 [1] 161 [1]  
Kentucky Utilities Co [Member]          
Business Combination [Line Items]          
Goodwill 607   607   $ 607
Revenues 505 472 1,130 1,036  
Net income (loss) [2] 79 78 223 203  
Rhode Island Regulated          
Business Combination [Line Items]          
Revenues 479 494 1,075 1,120  
Net income (loss) 10 (17) 46 53  
Corporate and Other [Member]          
Business Combination [Line Items]          
Revenues 0 1 0 1  
Net income (loss) $ (43) $ (65) $ (81) $ (128)  
[1] Net income equals comprehensive income.
[2] Net income equals comprehensive income.