XML 61 R43.htm IDEA: XBRL DOCUMENT v3.23.2
Revenue from Contracts with Customers (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues $ 1,823 $ 1,696 $ 4,238 $ 3,478    
Alternative Revenue Programs 5 (40) 42 (67)    
Other Revenue (7) (6) (11) (13)    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 1,821 1,650 4,269 3,398    
Contract with Customer, Asset and Liability [Abstract]            
Accounts Receivable, Credit Loss Expense (Reversal) 6 25 26 33    
Contract with Customer, Liability 48 33 48 33 $ 34 $ 42
Contract with Customer, Liability, Revenue Recognized     18 24    
Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 779 699 2,079 1,630    
Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 391 380 914 758    
Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 175 198 371 367    
Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 228 163 516 261    
Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 4 8 11 14    
Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 9 26 20 45    
Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 235 176 358 323    
Pennsylvania Regulated [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 667 676 1,558 1,451    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 668 650 1,558 1,385    
Pennsylvania Regulated [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 340 329 968 782    
Pennsylvania Regulated [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 105 117 253 225    
Pennsylvania Regulated [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 11 30 34 45    
Pennsylvania Regulated [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 13 14 26 26    
Pennsylvania Regulated [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Pennsylvania Regulated [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Pennsylvania Regulated [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 199 160 277 307    
Kentucky Regulated [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 778 883 1,738 1,887    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 774 884 1,733 1,894    
Kentucky Regulated [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 298 339 741 817    
Kentucky Regulated [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 237 251 511 521    
Kentucky Regulated [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 160 167 324 321    
Kentucky Regulated [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 66 93 126 176    
Kentucky Regulated [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 4 8 11 14    
Kentucky Regulated [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 9 26 20 45    
Kentucky Regulated [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0    
Corporate and Other [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 1 9 0 12    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 9 0 12    
Corporate and Other [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Corporate and Other [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Corporate and Other [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Corporate and Other [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 9 0 12    
Corporate and Other [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Corporate and Other [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Corporate and Other [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Rhode Island Regulated            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 377 128 942 128    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 379 107 978 107    
Rhode Island Regulated | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 141 31 370 31    
Rhode Island Regulated | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 49 12 150 12    
Rhode Island Regulated | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 4 1 13 1    
Rhode Island Regulated | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 149 47 364 47    
Rhode Island Regulated | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Rhode Island Regulated | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Rhode Island Regulated | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 36 16 81 16    
PPL Electric [Member]            
Contract with Customer, Asset and Liability [Abstract]            
Amortization of Revenue Reserve for ROE Challenge 30   74      
PPL Electric Utilities Corp [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 667 676 1,558 1,451    
Alternative Revenue Programs 6 (23) 7 (59)    
Other Revenue (5) (3) (7) (7)    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 668 650 1,558 1,385    
Contract with Customer, Asset and Liability [Abstract]            
Accounts Receivable, Credit Loss Expense (Reversal) 7 0 17 5    
Contract with Customer, Liability 35 16 35 16 23 25
Contract with Customer, Liability, Revenue Recognized     7 12    
Amortization of Revenue Reserve for ROE Challenge 30   74      
PPL Electric Utilities Corp [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 340 329 968 782    
PPL Electric Utilities Corp [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 105 117 253 225    
PPL Electric Utilities Corp [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 11 30 34 45    
PPL Electric Utilities Corp [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 13 14 26 26    
PPL Electric Utilities Corp [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
PPL Electric Utilities Corp [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
PPL Electric Utilities Corp [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 199 160 277 307    
Louisville Gas And Electric Co [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 355 410 829 903    
Alternative Revenue Programs 0 3 1 9    
Other Revenue (1) (2) (2) (4)    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 354 411 828 908    
Contract with Customer, Asset and Liability [Abstract]            
Accounts Receivable, Credit Loss Expense (Reversal) 0 1 1 2    
Contract with Customer, Liability 6 6 6 6 5 6
Contract with Customer, Liability, Revenue Recognized     5 6    
Louisville Gas And Electric Co [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 151 169 392 415    
Louisville Gas And Electric Co [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 119 124 271 270    
Louisville Gas And Electric Co [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 47 49 96 94    
Louisville Gas And Electric Co [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 26 47 42 86    
Louisville Gas And Electric Co [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Louisville Gas And Electric Co [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 11 22 27 43    
Louisville Gas And Electric Co [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 0 0 0 0    
Kentucky Utilities Co [Member]            
Reconciliation of Revenue from Contracts with Customers [Abstract]            
Operating Revenues 435 491 934 1,016    
Alternative Revenue Programs (3) 1 (3) 4    
Other Revenue (1) (2) (2) (3)    
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 431 490 929 1,017    
Contract with Customer, Asset and Liability [Abstract]            
Accounts Receivable, Credit Loss Expense (Reversal) 1 1 1 2    
Contract with Customer, Liability 7 5 7 5 $ 6 $ 6
Contract with Customer, Liability, Revenue Recognized     6 6    
Kentucky Utilities Co [Member] | Residential [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 147 170 349 402    
Kentucky Utilities Co [Member] | Commercial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 117 127 240 251    
Kentucky Utilities Co [Member] | Industrial [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 113 118 228 227    
Kentucky Utilities Co [Member] | Other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 40 45 84 89    
Kentucky Utilities Co [Member] | Wholesale - municipal [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 4 8 11 14    
Kentucky Utilities Co [Member] | Wholesale - other [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers 10 22 17 34    
Kentucky Utilities Co [Member] | Transmission [Member]            
Disaggregation of Revenue [Abstract]            
Revenues from Contracts with Customers $ 0 $ 0 $ 0 $ 0