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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Other | $ 150 | $ 58 |  |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount |  | 2 |  |
Allowance For Doubtful Accounts [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 95 | 69 | $ 73 | $ 58
Additions charged to income | 78 | 26 | 28 |
Deductions | 52 | 30 | 13 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Adjusted for CECL, Amount |  |  | 73 |
Other | 36 | 32 | 30 |
PPL Electric Utilities Corp [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Other | 12 | 22 |  |
PPL Electric Utilities Corp [Member] | Allowance For Doubtful Accounts [Member] |  |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | 33 | 35 | 41 | $ 30
Additions charged to income | 27 | 13 | 19 |
Deductions | 29 | 19 | 8 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Adjusted for CECL, Amount |  |  | $ 41 |
Other | $ 3 | $ 3 |  |

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