XML 110 R41.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Utility Rate Regulation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Regulated Operations [Line Items] |
Regulatory Assets and Liabilities | The following table provides information about the regulatory assets and liabilities of cost-based rate-regulated utility operations at December 31:
| PPL |  | PPL Electric
| 2021 |  | 2020 |  | 2021 |  | 2020
Current Regulatory Assets: |  |  |  |  |  |  |
Plant outage costs | $ | — |  |  | $ | 46 |  |  | $ | — |  |  | $ | — |
Gas supply clause | 21 |  |  | 4 |  |  | — |  |  | — |
Smart meter rider | 11 |  |  | 17 |  |  | 11 |  |  | 17 |
Transmission formula rate | 6 |  |  | 15 |  |  | 6 |  |  | 15 |
Storm costs | — |  |  | 7 |  |  | — |  |  | 7 |
Fuel adjustment clause | 11 |  |  | — |  |  | — |  |  | — |
Other | 15 |  |  | 10 |  |  | 5 |  |  | 1 |
Total current regulatory assets (a) | $ | 64 |  |  | $ | 99 |  |  | $ | 22 |  |  | $ | 40 |
Noncurrent Regulatory Assets: |  |  |  |  |  |  |
Defined benefit plans | $ | 523 |  |  | $ | 570 |  |  | $ | 256 |  |  | $ | 290 |
Plant outage cost | 54 |  |  | — |  |  | — |  |  | — |
Storm costs | 11 |  |  | 17 |  |  | — |  |  | — |
Unamortized loss on debt | 24 |  |  | 30 |  |  | 4 |  |  | 8 |
Interest rate swaps | 18 |  |  | 23 |  |  | — |  |  | — |
Terminated interest rate swaps | 70 |  |  | 75 |  |  | — |  |  | — |
Accumulated cost of removal of utility plant | 228 |  |  | 240 |  |  | 228 |  |  | 240 |
AROs | 302 |  |  | 300 |  |  | — |  |  | — |
Other | 6 |  |  | 7 |  |  | — |  |  | 3 |
Total noncurrent regulatory assets | $ | 1,236 |  |  | $ | 1,262 |  |  | $ | 488 |  |  | $ | 541 |
| PPL |  | PPL Electric
| 2021 |  | 2020 |  | 2021 |  | 2020
Current Regulatory Liabilities: |  |  |  |  |  |  |
Generation supply charge | $ | 10 |  |  | $ | 21 |  |  | $ | 10 |  |  | $ | 21 |
Transmission service charge | 21 |  |  | 1 |  |  | 21 |  |  | 1 |
Universal service rider | 17 |  |  | 22 |  |  | 17 |  |  | 22 |
TCJA customer refund | 22 |  |  | 11 |  |  | 22 |  |  | 11 |
Act 129 compliance rider | 10 |  |  | 7 |  |  | 10 |  |  | 7 |
Transmission formula rate return on equity (b) | 73 |  |  | — |  |  | 73 |  |  | — |
Economic relief billing rate | 27 |  |  | — |  |  | — |  |  | — |
Other | 2 |  |  | 17 |  |  | — |  |  | 6 |
Total current regulatory liabilities | $ | 182 |  |  | $ | 79 |  |  | $ | 153 |  |  | $ | 68 |
Noncurrent Regulatory Liabilities: |  |  |  |  |  |  |
Accumulated cost of removal of utility plant | $ | 639 |  |  | $ | 653 |  |  | $ | — |  |  | $ | — |
Power purchase agreement - OVEC | 35 |  |  | 43 |  |  | — |  |  | — |
Net deferred taxes | 1,591 |  |  | 1,690 |  |  | 531 |  |  | 560 |
Defined benefit plans | 95 |  |  | 60 |  |  | 28 |  |  | 18 |
Terminated interest rate swaps | 62 |  |  | 66 |  |  | — |  |  | — |
Other | — |  |  | 18 |  |  | — |  |  | — |
Total noncurrent regulatory liabilities | $ | 2,422 |  |  | $ | 2,530 |  |  | $ | 559 |  |  | $ | 578 |
| LG&E |  | KU
| 2021 |  | 2020 |  | 2021 |  | 2020
Current Regulatory Assets: |  |  |  |  |  |  |
Gas supply clause | $ | 21 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Fuel adjustment clause | 4 |  |  | — |  |  | 7 |  |  | — |
Gas line tracker | 3 |  |  | 4 |  |  | — |  |  | — |
Generation formula rate | — |  |  | — |  |  | 2 |  |  | 2 |
Plant outage costs | — |  |  | 12 |  |  | — |  |  | 34 |
Other | 5 |  |  | 3 |  |  | — |  |  | — |
Total current regulatory assets | $ | 33 |  |  | $ | 23 |  |  | $ | 9 |  |  | $ | 36 |
Noncurrent Regulatory Assets: |  |  |  |  |  |  |
Defined benefit plans | $ | 164 |  |  | $ | 174 |  |  | $ | 103 |  |  | $ | 106 |
Storm costs | 8 |  |  | 11 |  |  | 3 |  |  | 6 |
Unamortized loss on debt | 12 |  |  | 13 |  |  | 8 |  |  | 9 |
Interest rate swaps | 18 |  |  | 23 |  |  | — |  |  | — |
Terminated interest rate swaps | 41 |  |  | 44 |  |  | 29 |  |  | 31 |
AROs | 75 |  |  | 85 |  |  | 227 |  |  | 215 |
Plant outage costs | 15 |  |  | — |  |  | 39 |  |  | — |
Other | 4 |  |  | 1 |  |  | 2 |  |  | 3 |
Total noncurrent regulatory assets | $ | 337 |  |  | $ | 351 |  |  | $ | 411 |  |  | $ | 370 |
| LG&E |  | KU
| 2021 |  | 2020 |  | 2021 |  | 2020
Current Regulatory Liabilities: |  |  |  |  |  |  |
Economic relief billing credit | $ | 21 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |
Fuel adjustment clauses | — |  |  | — |  |  | — |  |  | 5 |
Environmental cost recovery | — |  |  | — |  |  | — |  |  | 4 |
Other | — |  |  | — |  |  | 2 |  |  | 2 |
Total current regulatory liabilities | $ | 21 |  |  | $ | — |  |  | $ | 8 |  |  | $ | 11 |
Noncurrent Regulatory Liabilities: |  |  |  |  |  |  |
Accumulated cost of removal of utility plant | $ | 262 |  |  | $ | 274 |  |  | $ | 377 |  |  | $ | 379 |
Power purchase agreement - OVEC | 24 |  |  | 30 |  |  | 11 |  |  | 13 |
Net deferred taxes | 491 |  |  | 528 |  |  | 569 |  |  | 602 |
Defined benefit plans | 10 |  |  | — |  |  | 57 |  |  | 42 |
Terminated interest rate swaps | 31 |  |  | 33 |  |  | 31 |  |  | 33 |
Other | — |  |  | 17 |  |  | — |  |  | 1 |
Total noncurrent regulatory liabilities | $ | 818 |  |  | $ | 882 |  |  | $ | 1,045 |  |  | $ | 1,070 |
(a)For PPL, these amounts are included in "Other current assets" on the Balance Sheets. (b)See “Regulatory Matters - Federal Matters - PPL Electric Transmission Formula Rate Return on Equity” below for additional information.

X
- References No definition available. + Details
Name: | ppl_RegulatedOperationsLineItems
Namespace Prefix: | ppl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References No definition available. + Details
Name: | ppl_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | ppl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration