Commitments and Contingencies (Environmental Matter and Other) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2019 customers	Dec. 31, 2021 USD ($)
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Period RIE Environmental Remediation Costs To Be Incurred Over	30 years
Period Over Which Distribution Adjustment Charge-related Costs Are amortized	10 years
Number of customers impacted by Aquidneck Island loss of gas supply | customers		7,500
Electric Rates [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental Costs Recognized, Recovery Credited to Expense	$ 3
Gas Rates [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental Costs Recognized, Recovery Credited to Expense	1
RIE Environmental Remediation
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Accrual for Environmental Loss Contingencies, Gross	100
PPL Electric [Member] | PPL Electric Additional Sites [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental site accrual	11		$ 10
PPL Electric Utilities Corp [Member] | PPL Electric Additional Sites [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental site accrual	$ 11		$ 10