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v3.23.3

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | $ 2,043 | $ 2,134 | $ 6,281 | $ 5,612 |  |
Alternative Revenue Programs | 1 | 51 | 42 | (16) |  |
Other Revenue | (6) | (8) | (17) | (21) |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 2,038 | 2,177 | 6,306 | 5,575 |  |
Contract with Customer, Asset and Liability [Abstract] |  |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 20 | 21 | 47 | 55 |  |
Contract with Customer, Liability | 33 | 35 | 33 | 35 | $ 34 | $ 42
Contract with Customer, Liability, Revenue Recognized |  |  | 21 | 25 |  |
Residential [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 866 | 908 | 2,854 | 2,538 |  |
Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 405 | 453 | 1,299 | 1,211 |  |
Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 179 | 201 | 547 | 568 |  |
Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 316 | 359 | 831 | 620 |  |
Wholesale - municipal [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 6 | 8 | 17 | 22 |  |
Wholesale - other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 17 | 21 | 37 | 66 |  |
Transmission [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 249 | 227 | 721 | 550 |  |
Pennsylvania Regulated [Member] |  |  |  |  |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | 737 | 766 | 2,295 | 2,217 |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 731 | 765 | 2,289 | 2,150 |  |
Pennsylvania Regulated [Member] | Residential [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 389 | 407 | 1,266 | 1,189 |  |
Pennsylvania Regulated [Member] | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 113 | 135 | 346 | 360 |  |
Pennsylvania Regulated [Member] | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 13 | 22 | 44 | 67 |  |
Pennsylvania Regulated [Member] | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 14 | 13 | 40 | 39 |  |
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 | 202 | 188 | 593 | 495 |  |
Kentucky Regulated [Member] |  |  |  |  |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | 893 | 977 | 2,631 | 2,864 |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 891 | 978 | 2,624 | 2,872 |  |
Kentucky Regulated [Member] | Residential [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 367 | 401 | 1,108 | 1,218 |  |
Kentucky Regulated [Member] | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 260 | 284 | 771 | 805 |  |
Kentucky Regulated [Member] | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 162 | 176 | 486 | 497 |  |
Kentucky Regulated [Member] | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 79 | 88 | 205 | 264 |  |
Kentucky Regulated [Member] | Wholesale - municipal [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 6 | 8 | 17 | 22 |  |
Kentucky Regulated [Member] | Wholesale - other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 17 | 21 | 37 | 66 |  |
Kentucky Regulated [Member] | Transmission [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 0 | 0 | 0 | 0 |  |
Corporate and Other [Member] |  |  |  |  |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | 0 | 7 | 0 | 19 |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 0 | 7 | 0 | 19 |  |
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 | 7 | 0 | 19 |  |
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 | 413 | 384 | 1,355 | 512 |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 416 | 427 | 1,393 | 534 |  |
Rhode Island Regulated | Residential [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 110 | 100 | 480 | 131 |  |
Rhode Island Regulated | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 32 | 34 | 182 | 46 |  |
Rhode Island Regulated | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 4 | 3 | 17 | 4 |  |
Rhode Island Regulated | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 223 | 251 | 586 | 298 |  |
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 | 47 | 39 | 128 | 55 |  |
PPL Electric [Member] |  |  |  |  |  |
Contract with Customer, Asset and Liability [Abstract] |  |  |  |  |  |
Amortization of Revenue Reserve for ROE Challenge |  |  | 74 |  |  |
PPL Electric Utilities Corp [Member] |  |  |  |  |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | 737 | 766 | 2,295 | 2,217 |  |
Alternative Revenue Programs | (2) | 3 | 5 | (56) |  |
Other Revenue | (4) | (4) | (11) | (11) |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 731 | 765 | 2,289 | 2,150 |  |
Contract with Customer, Asset and Liability [Abstract] |  |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 10 | 7 | 27 | 12 |  |
Contract with Customer, Liability | 21 | 18 | 21 | 18 | 23 | 25
Contract with Customer, Liability, Revenue Recognized |  |  | 10 | 12 |  |
Amortization of Revenue Reserve for ROE Challenge |  |  | 74 |  |  |
PPL Electric Utilities Corp [Member] | Residential [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 389 | 407 | 1,266 | 1,189 |  |
PPL Electric Utilities Corp [Member] | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 113 | 135 | 346 | 360 |  |
PPL Electric Utilities Corp [Member] | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 13 | 22 | 44 | 67 |  |
PPL Electric Utilities Corp [Member] | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 14 | 13 | 40 | 39 |  |
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 | 202 | 188 | 593 | 495 |  |
Louisville Gas And Electric Co [Member] |  |  |  |  |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |  |  |  |  |
Operating Revenues | 398 | 436 | 1,227 | 1,339 |  |
Alternative Revenue Programs | 0 | 3 | 1 | 12 |  |
Other Revenue | (1) | (1) | (3) | (5) |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 397 | 438 | 1,225 | 1,346 |  |
Contract with Customer, Asset and Liability [Abstract] |  |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 2 | 2 | 3 | 4 |  |
Contract with Customer, Liability | 5 | 6 | 5 | 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 | 182 | 200 | 574 | 615 |  |
Louisville Gas And Electric Co [Member] | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 127 | 140 | 398 | 410 |  |
Louisville Gas And Electric Co [Member] | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 49 | 53 | 145 | 147 |  |
Louisville Gas And Electric Co [Member] | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 33 | 39 | 75 | 125 |  |
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 | 6 | 6 | 33 | 49 |  |
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 | 505 | 553 | 1,439 | 1,569 |  |
Alternative Revenue Programs | 0 | 1 | (3) | 5 |  |
Other Revenue | (2) | (2) | (3) | (3) |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 503 | 552 | 1,433 | 1,571 |  |
Contract with Customer, Asset and Liability [Abstract] |  |  |  |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 1 | 3 | 2 | 5 |  |
Contract with Customer, Liability | 6 | 6 | 6 | 6 | $ 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 | 185 | 201 | 534 | 603 |  |
Kentucky Utilities Co [Member] | Commercial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 133 | 144 | 373 | 395 |  |
Kentucky Utilities Co [Member] | Industrial [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 113 | 123 | 341 | 350 |  |
Kentucky Utilities Co [Member] | Other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 45 | 51 | 130 | 140 |  |
Kentucky Utilities Co [Member] | Wholesale - municipal [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 6 | 8 | 17 | 22 |  |
Kentucky Utilities Co [Member] | Wholesale - other [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | 21 | 25 | 38 | 61 |  |
Kentucky Utilities Co [Member] | Transmission [Member] |  |  |  |  |  |
Disaggregation of Revenue [Abstract] |  |  |  |  |  |
Revenues from Contracts with Customers | $ 0 | $ 0 | $ 0 | $ 0 |  |

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