Commitments and Contingencies (Environmental Matter and Other) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
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
Rhode Island Division Of Public Utilities And Carriers Amount To Be Refunded To The RIE Energy Efficiency Program	$ 11
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	98	$ 99
PPL Electric [Member] \| PPL Electric Additional Sites [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental site accrual	8	8
PPL Electric Utilities Corp [Member] \| PPL Electric Additional Sites [Member]
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]
Environmental site accrual	$ 8	$ 8

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Period over which Distribution Adjustment Charge-related qualified remediation costs are amortized.

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Period RIE Environmental Remediation Costs To Be Incurred Over

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Rhode Island Division Of Public Utilities And Carriers Amount To Be Refunded To The RIE Energy Efficiency Program

+ References

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 410
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Subparagraph (d)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481931/410-30-50-10

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 410
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 410
-SubTopic 30
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-Section 55
-Paragraph 16
-Publisher FASB
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480102/450-20-S99-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 410
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
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Undiscounted amount of the accrual for environmental loss contingencies.

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Amount of expense recovery for known and estimated future costs arising from requirement to perform environmental remediation.

+ References

Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 410
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
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-URI https://asc.fasb.org/1943274/2147481960/410-30-45-4

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-SubTopic 30
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-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481931/410-30-50-12

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