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Public Utilities, Approved Demand Reduction Targets

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Public Utilities, Approved Energy Consumption Reduction Targets

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Public Utilities, Approved Energy Consumption Reduction Targets, Cost Recovery

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Public Utilities, Number of Approved Solar Sites

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Public Utilities, Number Of Unresolved Audit Matters Referred To Other Offices

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Public Utilities, Plant Construction, Capacity of Plants

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Public Utilities, Plant Construction, Percent of Subscriptions Required Prior To Commencement

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Public Utilities, Requested Program Phase Approval, Proposed Investment Amount

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Public Utilities, Transmission Solutions To The Reliability Issues, Amount

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Regulatory matters.

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Utilities, Basis Point Adder Associated With RTO Membership

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Utilities Cooperate Support

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Utilities Reclassification To Operating Expense

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Utilities, Transmission Owning Utilities Join An RTO

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Percentage of public utility's requested debt to capital, including debt and equity.

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Percentage of public utility's requested equity to capital, including debt and equity.

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Percentage of public utility's requested return on equity.

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REGULATORY MATTERS - Pennsylvania and West Virginia (Details) $ in Millions									3 Months Ended		12 Months Ended
	Mar. 14, 2025	Feb. 26, 2025 USD ($)	Jan. 17, 2025	Jul. 22, 2024 USD ($)	Dec. 08, 2023 auditMatter	Apr. 24, 2023 site MW	May 01, 2022 MW	Feb. 24, 2022	Mar. 31, 2025 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2024 USD ($)
Transmission Related Vegetation Management Programs \| FERC \| FE
Regulatory Matters [Line Items]
Utilities reclassification to operating expense										$ 105
Utilities cooperate support									$ 99
Public utilities, number of unresolved audit matters \| auditMatter					2
Utilities, transmission owning utilities join an RTO								0.00500000
Transmission Related Vegetation Management Programs \| FERC \| JERSEY CENTRAL POWER & LIGHT COMPANY \| FE
Regulatory Matters [Line Items]
Utilities reclassification to operating expense										$ 13
Transmission ROE Incentive \| FERC
Regulatory Matters [Line Items]
Utilities, transmission owing utilities join an RTO			0.00500000
Public utilities, amount awarded from other party											$ 46
Transmission ROE Incentive \| FERC \| Miscellaneous Income
Regulatory Matters [Line Items]
Public utilities, amount awarded from other party											4
Transmission ROE Incentive \| FERC \| Transmission \| Transmission Revenues
Regulatory Matters [Line Items]
Public utilities, amount awarded from other party											$ 42
PJM 2024 RTEP Window 1 \| Valley Link Transmission Rate
Regulatory Matters [Line Items]
Transmission solutions to the reliability issues		$ 3,000
Capital structure, percentage	40.00%
Equity ratio, percentage	60.00%
Transmission rate, base ROE	10.90%
Pennsylvania \| EE&C Phase IV \| PPUC
Regulatory Matters [Line Items]
Public utilities, approved energy consumption reduction targets, cost recovery									$ 390
Pennsylvania \| EE&C Phase IV \| PPUC \| ME
Regulatory Matters [Line Items]
Demand reduction targets									2.90%
Energy consumption reduction targets									3.10%
Pennsylvania \| EE&C Phase IV \| PPUC \| PN
Regulatory Matters [Line Items]
Demand reduction targets									3.30%
Energy consumption reduction targets									3.00%
Pennsylvania \| EE&C Phase IV \| PPUC \| Penn
Regulatory Matters [Line Items]
Demand reduction targets									2.00%
Energy consumption reduction targets									2.70%
Pennsylvania \| EE&C Phase IV \| PPUC \| WP
Regulatory Matters [Line Items]
Demand reduction targets									2.50%
Energy consumption reduction targets									2.40%
Pennsylvania \| New LTIIPs \| PPUC \| Pennsylvania Companies
Regulatory Matters [Line Items]
Proposed investment amount				$ 1,600
Pennsylvania \| 2025-2029 LTIIP \| PPUC \| Pennsylvania Companies
Regulatory Matters [Line Items]
Proposed investment amount				$ 1,400
West Virginia \| WVPSC \| MP and PE \| Solar Generation Project
Regulatory Matters [Line Items]
Percent of subscriptions required prior to commencement of construction							85.00%
Plant capacity (in MW's) \| MW						30	50
Number of approved solar sites \| site						3