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- Definition

Asset Acquisition, Ownership Interest Acquired

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- Definition

Asset Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets

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- Definition

Expenditures for cost recovery program.

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- Definition

Incremental Energy Savings Goal, Percent

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- Definition

Incremental Energy Savings Goal, Thereafter, Percent

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- Definition

Plant Capacity

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- Definition

Public Utilities, Enhanced Service Reliability Program, Period to File New Depreciation Study

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- Definition

Public Utilities, Enhanced Service Reliability Program, Rate Case Renewal Period

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- Definition

Public Utilities, Enhanced Service Reliability Program Term

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- Definition

Public Utilities, Expected Cost of the Program

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- Definition

Public Utilities, Meter Deployment Period

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- Definition

Public Utilities, Meter Deployment Program Period

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- Definition

Public Utilities, Number of Meters to be Deployed

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- Definition

Public Utilities, Number of Approved Enhanced Service Reliability Programs

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- Definition

Public Utilities, Number of Enhanced Service Reliability Programs

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- Definition

Public Utilities, Program Study Findings Submitted, Amount

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- Definition

Public Utilities, Requested Electric Vehicle Program, Charging Equipment Rebates Amortization Period

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No definition available.

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- Definition

Public Utilities, Requested Electric Vehicle Program, Cost of Charging Equipment Rebates

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- Definition

Public Utilities, Requested Rate Increase, Revised Increase Due Effects of 2017 Tax Cuts and Jobs Act

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No definition available.

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- Definition

Public Utilities, Settled Decrease In Regulatory Liability

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- Definition

Public Utilities, Settled Revenue Increase, Amount

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- Definition

Recovery period for expenditures for cost recovery program.

+ References

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- Definition

Recovery Program, Amortization Period

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- Definition

Regulatory matters.

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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

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Amount of public utility's amended requested rate increase (decrease) with regulatory agency.

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Amount of public utility's requested rate increase (decrease) with regulatory agency.

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Percentage of public utility's requested rate increase (decrease) with regulatory agency.

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Percentage of public utility's requested return on equity.

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REGULATORY MATTERS - Maryland and New Jersey (Details) meter in Millions, $ in Millions																		12 Months Ended	36 Months Ended
	Jan. 29, 2021 USD ($)	Dec. 18, 2020 USD ($)	Nov. 01, 2020 USD ($)	Oct. 16, 2020 USD ($)	Sep. 25, 2020 USD ($)	Sep. 22, 2020 USD ($)	Aug. 27, 2020 USD ($) meter	Jun. 02, 2020 USD ($)	Apr. 06, 2020 USD ($) MW	Feb. 18, 2020 USD ($)	Mar. 23, 2019 USD ($)	Mar. 22, 2019 program	Dec. 17, 2018 USD ($)	Oct. 22, 2018 USD ($)	Aug. 24, 2018 USD ($) program	Jan. 19, 2018 USD ($)	Jul. 16, 2015	Dec. 31, 2020 USD ($) MW	Dec. 31, 2020 USD ($) MW
Utilities and FET
Regulatory Matters [Line Items]
Plant generation capacity (in MW's) \| MW																		3,790	3,790
Yard's Creek Energy, LLC Hydro Generation Facility \| Utilities and FET
Regulatory Matters [Line Items]
Plant generation capacity (in MW's) \| MW																		210	210
Ownership interest acquired																		50.00%
PE \| MDPSC
Regulatory Matters [Line Items]
Cost of charging equipment rebates																$ 12.0
Charging equipment rebates amortization period																5 years
PE \| Maryland
Regulatory Matters [Line Items]
Incremental energy savings goal per year (percent)																	0.20%
Incremental energy savings goal thereafter (percent)																	2.00%
PE \| Maryland \| MDPSC
Regulatory Matters [Line Items]
Requested increase (decrease) in revenues											$ 6.2
Requested rate increase (decrease)															$ (19.7)
Number of enhanced service reliability programs \| program															4,000,000
Revised requested rate increase														$ 17.6
Number of approved ESR programs \| program												3
ESR program term												4 years
Period to file new depreciation study												18 months
ESER Program rate case renewal period												4 years
Revised rate increase															$ 7.3
JCP&L \| New Jersey
Regulatory Matters [Line Items]
Requested rate increase (decrease) (percent)										7.80%
JCP&L \| New Jersey \| Yard's Creek Energy, LLC Hydro Generation Facility
Regulatory Matters [Line Items]
Plant generation capacity (in MW's) \| MW									210
Consideration transferred									$ 155.0
JCP&L \| New Jersey \| Yard's Creek Energy, LLC Hydro Generation Facility \| Utilities and FET
Regulatory Matters [Line Items]
Assets acquired																		$ 45.0	$ 45.0
JCP&L \| New Jersey \| NJBPU
Regulatory Matters [Line Items]
Requested rate increase (decrease)								$ (185.0)		$ (186.9)
Settled amount of increase in revenue				$ 94.0
Requested ROE				9.60%
Settled decrease in regulatory liability				$ 86.0
JCP&L \| New Jersey \| NJBPU \| Yard's Creek Energy, LLC Hydro Generation Facility
Regulatory Matters [Line Items]
Ownership interest acquired									50.00%
JCP&L Reliability Plus \| JCP&L \| New Jersey \| NJBPU
Regulatory Matters [Line Items]
Requested increase (decrease) in revenues			$ 95.1										$ 97.0
2021-2023 EmPOWER Program Cycle \| PE \| Maryland
Regulatory Matters [Line Items]
Recovery period for expenditures for cost recovery program		3 years
Expenditures for cost recovery program		$ 148.0
2018-2020 EmPOWER Program Cycle \| PE \| Maryland
Regulatory Matters [Line Items]
Recovery period for expenditures for cost recovery program																			3 years
Expenditures for cost recovery program																			$ 116.0
Amortization period for expenditures for cost recovery program																		5 years
Advanced metering infrastructure \| JCP&L \| New Jersey \| Utilities and FET
Regulatory Matters [Line Items]
Requested rate increase (decrease)							$ (732.0)
Advanced metering infrastructure \| JCP&L \| New Jersey \| NJBPU \| Utilities and FET
Regulatory Matters [Line Items]
Expected cost of the program							$ 418.0
Meter deployment program period							20 years
Deployment period							3 years
Number of meters to be deployed \| meter							1.2
Energy Efficiency and Peak Demand Reduction \| JCP&L \| New Jersey \| NJBPU \| Utilities and FET
Regulatory Matters [Line Items]
Requested rate increase (decrease)					$ (230.0)
Depreciation Study \| PE \| Maryland
Regulatory Matters [Line Items]
Depreciation study findings						$ 36.2
Depreciation Study \| PE \| Maryland \| MDPSC \| Subsequent Event
Regulatory Matters [Line Items]
Requested rate increase (decrease)	$ 9.6
Depreciation Study \| PE \| Maryland \| Maryland Office of People's Counsel \| Subsequent Event
Regulatory Matters [Line Items]
Requested rate increase (decrease)	$ 10.8