Basis points for Transmission Formula Rate

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- Definition

Maximum increase of revenue requirement

+ References

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- Definition

Non-mandatory capital spend eligible to be recovered in rates after 2028

+ References

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- Definition

Non-mandatory capital spend eligible to be recovered in rates for 2026 and 2027

+ References

No definition available.

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- Definition

Percentage of proposed rates to be implemented 12 months after filing

+ References

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- Definition

Percentage of proposed rates to be implemented 7 months after filing

+ References

No definition available.

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- Definition

Regulatory Matters Additional Narrative Information [Line Items]

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- Definition

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

+ References

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- Definition

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

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- Definition

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

+ References

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 50
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- Definition

The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.

+ References

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-Section 25
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Regulatory Matters - Narrative (Details) $ in Millions					9 Months Ended	48 Months Ended
Regulatory Matters - Narrative (Details) $ in Millions	Oct. 01, 2026 USD ($)	May 15, 2026 USD ($)	Dec. 19, 2024 USD ($)	Jan. 17, 2023 USD ($)	Sep. 30, 2026 USD ($)	Dec. 31, 2027	Oct. 20, 2026 USD ($)	Jul. 13, 2026	Aug. 06, 2025 USD ($)	Dec. 31, 2024 USD ($)
Commonwealth Edison Co
Regulatory Matters Additional Narrative Information [Line Items]
Maximum increase of revenue requirement					105.00%
Commonwealth Edison Co \| Carbon Mitigation Credit rider
Regulatory Matters Additional Narrative Information [Line Items]
Regulatory Liabilities					$ 9
Commonwealth Edison Co \| Nuclear Production Tax Credits
Regulatory Matters Additional Narrative Information [Line Items]
Regulatory Assets							$ 155			$ 804
Commonwealth Edison Co \| Illinois 2023 Electric Distribution Base Rate Case
Regulatory Matters Additional Narrative Information [Line Items]
Approved Revenue Requirement Increase (Decrease)			$ 1,045
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 1,487
Commonwealth Edison Co \| Illinois 2023 Electric Distribution Base Rate Case \| 2026
Regulatory Matters Additional Narrative Information [Line Items]
Approved Revenue Requirement Increase (Decrease)			102
Commonwealth Edison Co \| Illinois 2023 Electric Distribution Base Rate Case \| 2027
Regulatory Matters Additional Narrative Information [Line Items]
Approved Revenue Requirement Increase (Decrease)			$ 111
Commonwealth Edison Co \| 2026 Transmission Formula Rate Annual Update
Regulatory Matters Additional Narrative Information [Line Items]
Basis points for Transmission Formula Rate		0.0050
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 31
Commonwealth Edison Co \| Illinois 2025 MRP Reconciliation Rate Case
Regulatory Matters Additional Narrative Information [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 205
Commonwealth Edison Co \| Forecast [Member] \| Illinois 2023 Electric Distribution Base Rate Case
Regulatory Matters Additional Narrative Information [Line Items]
Public Utilities, Approved Debt Capital Structure, Percentage						50.00%
Baltimore Gas and Electric Company \| Legislative Energy Relief Refund
Regulatory Matters Additional Narrative Information [Line Items]
Regulatory Liabilities									$ 49
Baltimore Gas and Electric Company \| 2026 Transmission Formula Rate Annual Update
Regulatory Matters Additional Narrative Information [Line Items]
Basis points for Transmission Formula Rate		0.0050
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 16
Potomac Electric Power Company \| Legislative Energy Relief Refund
Regulatory Matters Additional Narrative Information [Line Items]
Regulatory Liabilities									21
Potomac Electric Power Company \| 2026 Transmission Formula Rate Annual Update
Regulatory Matters Additional Narrative Information [Line Items]
Basis points for Transmission Formula Rate		0.0050
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 12
Delmarva Power and Light Company
Regulatory Matters Additional Narrative Information [Line Items]
Non-mandatory Capital Spend								70
Non-mandatory capital spend eligible to be recovered in rates after 2028								5.00%
Percentage of proposed rates to be implemented 7 months after filing								50.00%
Percentage of proposed rates to be implemented 12 months after filing								75.00%
Delmarva Power and Light Company \| Legislative Energy Relief Refund
Regulatory Matters Additional Narrative Information [Line Items]
Regulatory Liabilities									$ 8
Delmarva Power and Light Company \| 2026 Transmission Formula Rate Annual Update
Regulatory Matters Additional Narrative Information [Line Items]
Basis points for Transmission Formula Rate		0.0050
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 3
Atlantic City Electric Company \| 2026 Transmission Formula Rate Annual Update
Regulatory Matters Additional Narrative Information [Line Items]
Basis points for Transmission Formula Rate		0.0050
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 1