Income and Other Taxes (Unrecognized to End) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Integer	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Income Tax Examination (Details) [Line Items]
Number of major tax jurisdictions tax returns are filed | Integer		4
Deferred Income Tax Expense (Benefit)		$ 190	$ 516	$ 330
Increase (Decrease) in Regulatory Assets and Liabilities		$ 119	(52)	63
Deferred Tax Benefit
Income Tax Examination (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount	$ 5
US - Federal [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2018 and prior
Pennsylvania - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior
Kentucky - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior
United Kingdom - Foreign [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2019 and prior
PPL Electric [Member] | Regulated Deferred Income Taxes Reduction
Income Tax Examination (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount	270
PPL Electric [Member] | Deferred Tax Benefit
Income Tax Examination (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount	9
PPL Electric Utilities Corp [Member]
Income Tax Examination (Details) [Line Items]
Number of major tax jurisdictions tax returns are filed | Integer		3
Deferred Income Tax Expense (Benefit)		$ 91	79	83
Increase (Decrease) in Regulatory Assets and Liabilities		59	(96)	40
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount		(9)	0	0
PPL Electric Utilities Corp [Member] | Regulated Deferred Income Taxes Reduction
Income Tax Examination (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount	270
PPL Electric Utilities Corp [Member] | Deferred Tax Benefit
Income Tax Examination (Details) [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount	$ 9	$ 9
PPL Electric Utilities Corp [Member] | US - Federal [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2018 and prior
PPL Electric Utilities Corp [Member] | Pennsylvania - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior
PPL Electric Utilities Corp [Member] | Kentucky - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior
Louisville Gas And Electric Co [Member]
Income Tax Examination (Details) [Line Items]
Number of major tax jurisdictions tax returns are filed | Integer		2
Deferred Income Tax Expense (Benefit)		$ (5)	9	3
Increase (Decrease) in Regulatory Assets and Liabilities		$ (17)	23	0
Louisville Gas And Electric Co [Member] | US - Federal [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2018 and prior
Louisville Gas And Electric Co [Member] | Kentucky - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior
Kentucky Utilities Co [Member]
Income Tax Examination (Details) [Line Items]
Number of major tax jurisdictions tax returns are filed | Integer		2
Deferred Income Tax Expense (Benefit)		$ 4	3	22
Increase (Decrease) in Regulatory Assets and Liabilities		$ 19	$ 22	$ 26
Kentucky Utilities Co [Member] | US - Federal [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2018 and prior
Kentucky Utilities Co [Member] | Kentucky - State [Member]
Income Tax Examination (Details) [Line Items]
Income tax examination, year(s) no longer under examination		2017 and prior