- Definition

Maximum basis points that can be added to the average rate on 30-year treasury notes, to determine the allowed ROE for ComEd's revenue requirement.

+ References

No definition available.

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency, prior year annual reconciliation.

+ References

No definition available.

+ Details

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- Definition

[Line Items] for Regulatory Matters Completed Rate Cases [Table]

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

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- Definition

Amount of public utility's interim rate increase (decrease) allowed while waiting final decision of regulatory agency.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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Regulatory Matters - Schedule of Completed Rate Cases (Details) - USD ($) $ in Millions					12 Months Ended
	Dec. 16, 2020	Dec. 09, 2020	Sep. 11, 2020	Apr. 16, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Commonwealth Edison Co [Member] \| Illinois 2020 Electric Distribution Base Rate Case [Member]
Regulatory Matters Completed Rate Cases [Line Items]
Requested Revenue Requirement Increase (Decrease)				$ (11)
Approved Revenue Requirement Increase (Decrease)		$ (14)
Approved Return on Equity, Percentage		8.38%
Public Utilities, Interim Rate Increase (Decrease), Amount		$ 50
Public Utilities Requested Rate Increase (Decrease), Prior Year Annual Reconciliation		$ (64)
Public Utilities, Approved Equity Capital Structure, Percentage		6.28%
Basis points for ComEd's Revenue Requirement		580
Baltimore Gas and Electric Company [Member] \| Maryland 2020 Electric Distribution Base Rate Case [Member]
Regulatory Matters Completed Rate Cases [Line Items]
Requested Revenue Requirement Increase (Decrease)			$ 137
Approved Revenue Requirement Increase (Decrease)	$ 81
Approved Return on Equity, Percentage	9.50%
Public Utilities, Interim Rate Increase (Decrease), Amount					$ 42	$ 39	$ 59
Baltimore Gas and Electric Company [Member] \| Maryland 2020 Gas Distribution Base Rate Case [Member]
Regulatory Matters Completed Rate Cases [Line Items]
Requested Revenue Requirement Increase (Decrease)			$ 91
Approved Revenue Requirement Increase (Decrease)	$ 21
Approved Return on Equity, Percentage	9.65%
Public Utilities, Interim Rate Increase (Decrease), Amount					$ 10	$ 11	$ 53