Regulatory Matters - Narrative (Details) GWh in Millions |
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1 Months Ended |
3 Months Ended |
6 Months Ended |
9 Months Ended |
12 Months Ended |
60 Months Ended |
65 Months Ended |
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Dec. 31, 2030 |
Jan. 02, 2018
GWh
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Jul. 29, 2016
USD ($)
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Nov. 30, 2015
MWh
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Nov. 06, 2015
USD ($)
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Sep. 10, 2015
USD ($)
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May 27, 2015
USD ($)
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May 07, 2015
USD ($)
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Mar. 27, 2015
USD ($)
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Sep. 15, 2014
USD ($)
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Aug. 21, 2014
USD ($)
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Mar. 15, 2013
USD ($)
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Dec. 05, 2012 |
Nov. 01, 2012
MWh
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Jul. 31, 2012
USD ($)
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Apr. 30, 2012
MW
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Mar. 31, 2013
USD ($)
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Aug. 31, 2010
USD ($)
smart_meter
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Mar. 31, 2017
USD ($)
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Dec. 31, 2016
USD ($)
smart_meter
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Sep. 30, 2016
USD ($)
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Jun. 30, 2016
USD ($)
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Mar. 31, 2016
USD ($)
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Mar. 23, 2016
USD ($)
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Dec. 31, 2014
USD ($)
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Sep. 30, 2014
USD ($)
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Jun. 30, 2014
USD ($)
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Dec. 31, 2008
USD ($)
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Jun. 30, 2016
USD ($)
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Dec. 31, 2016
USD ($)
smart_meter
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Dec. 31, 2017 |
Dec. 31, 2016
USD ($)
smart_meter
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Dec. 31, 2015
USD ($)
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Dec. 31, 2014
USD ($)
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Dec. 31, 2013 |
Dec. 31, 2007
USD ($)
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Nov. 30, 2010
USD ($)
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Nov. 30, 2005
USD ($)
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Jun. 01, 2019 |
Jun. 01, 2018 |
Jun. 01, 2017 |
Jun. 03, 2016
USD ($)
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Mar. 31, 2015
USD ($)
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Regulatory Matters Additional Narrative Information [Line Items] |
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Decommissioning Liability, Noncurrent |
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$ 14,000,000
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$ 14,000,000
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$ 14,000,000
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$ 90,000,000
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Public Utilities, Requested Rate Increase (Decrease), Amount |
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138
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(50)
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$ 269
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Regulatory Assets |
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11,388,000,000
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11,388,000,000
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11,388,000,000
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6,824,000,000
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Noncurrent regulatory assets |
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10,046,000,000
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10,046,000,000
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10,046,000,000
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6,065,000,000
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Regulatory liabilities |
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602,000,000
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602,000,000
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602,000,000
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369,000,000
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Business Combination, Integration Related Costs |
[1],[2] |
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143,000,000
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87,000,000
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Regulatory Liabilities |
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4,789,000,000
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4,789,000,000
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4,789,000,000
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4,570,000,000
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Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
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128,000,000
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96,000,000
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220,000,000
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Other Commitment |
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513,000,000
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$ 137,000,000
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$ 137,000,000
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513,000,000
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513,000,000
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Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
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72,000,000
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72,000,000
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72,000,000
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55,000,000
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Energy Efficiency Demand Response Programs [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Liabilities |
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185,000,000
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185,000,000
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185,000,000
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92,000,000
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Over Recovered Energy And Transmission Costs [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Liabilities |
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134,000,000
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134,000,000
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$ 134,000,000
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131,000,000
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Commonwealth Edison Co [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Subsequent contribution to technology innovation trust |
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$ 4,000,000
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Utility annual customer assistance |
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$ 10,000,000
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Term of contract |
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20 years
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Low income sector consumption reduction targets Act 129 Phase II |
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0.10%
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Renewable energy resources cumulatively increase |
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1.50%
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Public Utilities, Requested Rate Increase (Decrease), Amount |
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$ 90,000,000
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68,000,000
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36,000,000
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Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
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(4,000,000)
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(18,000,000)
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14,000,000
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Regulatory Assets |
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1,167,000,000
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1,167,000,000
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1,167,000,000
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1,113,000,000
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Noncurrent regulatory assets |
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977,000,000
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977,000,000
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$ 977,000,000
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895,000,000
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Rate of return on common equity in federal energy regulatory committee complaint |
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11.50%
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Regulatory liabilities |
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329,000,000
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329,000,000
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$ 329,000,000
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155,000,000
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Business Combination, Integration Related Costs |
[2],[3] |
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(6,000,000)
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9,000,000
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Regulatory Liabilities |
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3,698,000,000
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3,698,000,000
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3,698,000,000
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3,614,000,000
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Customer refundable fees, interest |
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1,000,000
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Public Utilities, Approved Rate Increase (Decrease), Amount |
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(94,000,000)
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(86,000,000)
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(22,000,000)
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Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
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$ 91,000,000
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$ 34,000,000
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$ 78,000,000
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Public Utilities, Requested Equity Capital Structure, Percentage |
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8.47%
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8.61%
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8.62%
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Public Utilities, Requested Return on Equity, Percentage |
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11.50%
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11.50%
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Public Utilities, Interim Rate Increase (Decrease), Amount |
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$ (8,000,000)
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SocialCarbonCost |
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16.50
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NuclearFacilityPurchaseAmount |
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0.16
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LowIncomeEnergyAssistanceContributionAnnual |
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$ 10,000,000
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LowIncomeEnergyAssistanceContributionLength |
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5
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Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
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5,000,000
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5,000,000
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$ 5,000,000
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$ 6,000,000
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Commonwealth Edison Co [Member] | Energy Efficiency Demand Response Programs [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Liabilities |
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141,000,000
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141,000,000
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141,000,000
|
52,000,000
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Commonwealth Edison Co [Member] | Over Recovered Energy And Transmission Costs [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Liabilities |
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|
60,000,000
|
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|
60,000,000
|
|
60,000,000
|
53,000,000
|
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|
Commonwealth Edison Co [Member] | Renewable energy Requirements [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Liabilities |
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30,000,000
|
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|
30,000,000
|
|
30,000,000
|
24,000,000
|
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|
Commonwealth Edison Co [Member] | Over Recovered Electric Supply Cost [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory liabilities |
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30,000,000
|
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|
$ 30,000,000
|
|
30,000,000
|
29,000,000
|
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|
Commonwealth Edison Co [Member] | Electric Distribution [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Public Utilities, Requested Rate Increase (Decrease), Amount |
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134
|
85
|
$ 160
|
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|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
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|
$ 18,000,000
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|
$ (127)
|
$ 67
|
$ (232)
|
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Public Utilities, Approved Return on Equity, Percentage |
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|
8.59%
|
9.09%
|
9.20%
|
|
|
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|
|
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|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
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|
$ 7
|
$ 152
|
$ (72)
|
|
|
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|
|
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|
Public Utilities, Requested Equity Capital Structure, Percentage |
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|
6.71%
|
7.05%
|
7.06%
|
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|
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|
Public Utilities, Requested Return on Equity, Percentage |
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|
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|
8.64%
|
9.14%
|
9.25%
|
|
|
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|
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|
Commonwealth Edison Co [Member] | Energy Related Derivative [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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Term of contract |
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20 years
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|
Commonwealth Edison Co [Member] | Subsequent Event [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
|
|
|
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|
|
EnergyEfficiencyAnnualCumulativeSavings |
|
21.50%
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
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|
|
|
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|
6.60%
|
|
|
|
|
|
|
|
|
|
|
|
|
RenewableEnergyRetailLoad |
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
100.00%
|
100.00%
|
100.00%
|
|
|
Commonwealth Edison Co [Member] | Minimum [Member] |
|
|
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
|
|
|
|
|
|
|
|
|
Renewable energy resources cumulatively increase |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11.50%
|
|
|
|
|
|
|
|
|
|
|
|
FutureEnergyEfficiencySpending |
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 250,000,000
|
|
|
|
|
|
|
|
|
|
|
|
EnergyEfficiencyROEAdjustment |
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20000.00%
|
|
|
|
|
|
|
|
|
|
|
|
Commonwealth Edison Co [Member] | Maximum [Member] |
|
|
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|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Renewable energy resources cumulatively increase |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25.00%
|
|
|
|
|
|
|
|
|
|
|
|
FutureEnergyEfficiencySpending |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 400,000,000
|
|
|
|
|
|
|
|
|
|
|
|
ResidentialCustomerRateIncrease |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25.00%
|
|
|
|
|
|
|
|
|
|
|
|
CommercialAndIndustrialCustomerRateIncrease |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1.30%
|
|
|
|
|
|
|
|
|
|
|
|
Commonwealth Edison Company [Member] |
|
|
|
|
|
|
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|
|
|
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|
|
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|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
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|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CumulativeAnnualEnergyEfficiencyGoal | GWh |
|
|
88
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Low income sector consumption reduction targets Act 129 Phase II |
|
|
|
|
|
|
|
|
|
|
|
|
|
4.50%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Smart meters initial phase deployment | smart_meter |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,600,000.0
|
|
|
|
|
|
|
|
|
|
1,600,000.0
|
|
1,600,000.0
|
|
|
|
|
|
|
|
|
|
|
|
Estimated number of smart meters to be installed | smart_meter |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,700,000
|
|
|
|
|
|
|
|
|
|
1,700,000
|
|
1,700,000
|
|
|
|
|
|
|
|
|
|
|
|
Total smart grid smart meter investment grant awarded |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 200,000,000
|
|
|
|
|
|
|
|
|
|
$ 200,000,000
|
|
$ 200,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Total smart meter spend on investment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
578,000,000
|
|
|
|
|
|
|
|
|
|
578,000,000
|
|
578,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Total smart grid spend on investment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
155,000,000
|
|
|
|
|
|
|
|
|
|
155,000,000
|
|
155,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Smart grid investment grant awarded |
|
|
|
|
|
|
|
$ 275,000,000
|
$ 534,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cumulative consumption reduction targets | MWh |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,125,852
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public sector maximum consumption reduction targets Act 129 Phase II |
|
|
|
|
|
|
|
|
|
|
|
|
|
10.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proposed funding Of direct load control program costs |
|
|
|
|
|
|
|
|
|
|
|
|
$ 10,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
$ 127,000,000
|
|
|
$ 190,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
10.95%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,710,000,000
|
|
|
|
|
|
|
|
|
|
1,710,000,000
|
|
1,710,000,000
|
$ 1,617,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,681,000,000
|
|
|
|
|
|
|
|
|
|
1,681,000,000
|
|
1,681,000,000
|
1,583,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
127,000,000
|
|
|
|
|
|
|
|
|
|
127,000,000
|
|
127,000,000
|
112,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
644,000,000
|
|
|
|
|
|
|
|
|
|
644,000,000
|
|
644,000,000
|
639,000,000
|
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,000,000
|
13,000,000
|
$ 0
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] | Over Recovered NonBypassable Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
10,000,000
|
|
|
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
41,000,000
|
|
|
|
|
|
|
|
|
|
41,000,000
|
|
41,000,000
|
40,000,000
|
|
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
56,000,000
|
|
|
|
|
|
|
|
|
|
56,000,000
|
|
56,000,000
|
60,000,000
|
|
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] | Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Percentage Tier I alternative energy resources |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3.50%
|
|
|
|
|
|
|
|
|
Percentage Tier II alternative energy resources |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6.20%
|
|
|
|
|
|
|
|
|
PECO Energy Co [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Low income sector consumption reduction targets Act 129 Phase II |
|
|
|
|
|
|
|
|
|
|
|
|
|
2.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cumulative consumption reduction targets | MWh |
|
|
|
|
2,100,875
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Percentage Tier I alternative energy resources |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8.00%
|
|
|
|
|
|
|
|
|
Percentage Tier II alternative energy resources |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.00%
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Increase in electric delivery service revenue resulting from rate case settlement or order. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
22,000,000
|
|
|
|
|
|
|
|
|
|
|
Increase in gas delivery service revenue resulting from rate case settlement or order. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
38,000,000
|
|
|
|
|
|
|
|
|
|
|
Estimated number of smart meters to be installed | smart_meter |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Projected investment in smart meters |
|
|
|
|
|
$ 104,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
37,000,000
|
|
|
|
|
|
|
|
|
|
37,000,000
|
|
37,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Annual depreciation expense decrease regulated property |
|
|
|
|
|
|
|
|
|
|
|
$ 20,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12,000,000
|
0
|
9,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
$ (68,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ (99,000,000)
|
|
|
|
|
|
|
(3,000,000)
|
3,000,000
|
(5,000,000)
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
712,000,000
|
|
|
|
|
|
|
|
|
|
712,000,000
|
|
712,000,000
|
781,000,000
|
|
|
|
|
|
|
|
|
|
|
Total projected smart meter smart grid spend |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 480,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Reimbursements received from the DOE |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 200,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
504,000,000
|
|
|
|
|
|
|
|
|
|
504,000,000
|
|
504,000,000
|
514,000,000
|
|
|
|
|
|
|
|
|
|
|
Customer Refund Liability, Noncurrent |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 30,000,000
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
50,000,000
|
|
|
|
|
|
|
|
|
|
50,000,000
|
|
50,000,000
|
38,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2],[3] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,000,000)
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
Site contingency, recovery from third party of environmental remediation cost |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,000,000
|
$ 5,000,000
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
160,000,000
|
|
|
|
|
|
|
|
|
|
160,000,000
|
|
$ 160,000,000
|
222,000,000
|
|
|
|
|
|
|
|
|
|
|
Deferred costs, noncurrent |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 16,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 8,000,000
|
Rate cap imposed on public utility subsidiary |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15.00%
|
|
|
|
|
|
|
|
|
|
|
|
Deferred purchased power costs |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 306,000,000
|
|
|
|
|
|
|
|
Environmental costs recognized, recovery credited to expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 81,000,000
|
73,000,000
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(28,000,000)
|
(10,000,000)
|
(17,000,000)
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 86,000,000
|
$ 9,000,000
|
$ 25,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Equity Capital Structure, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8.09%
|
8.46%
|
8.53%
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.50%
|
11.30%
|
11.30%
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
57,000,000
|
|
|
|
|
|
|
|
|
|
57,000,000
|
|
$ 57,000,000
|
$ 49,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Abandonment costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9,000,000
|
|
|
|
|
|
|
|
|
|
9,000,000
|
|
9,000,000
|
19,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
18,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Under Recovered Decoupling Revenue [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,000,000
|
|
|
|
|
|
|
|
|
|
2,000,000
|
|
2,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Over Recovered Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Over-Recovered Natural Gas Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Over Recovered Decoupling Gas Revenue [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Over Recovered Decoupling Electric Revenue [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30,000,000
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Under-Recovered Electric Revenue Decoupling [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
116,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
$ (44,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
9.80%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Baltimore Gas and Electric Company [Member] | Gas Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
78,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
$ (48,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
9.70%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exelon Generation Co L L C [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Decommissioning Liability, Noncurrent |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14,000,000
|
|
|
|
|
|
|
|
|
|
14,000,000
|
|
14,000,000
|
90,000,000
|
|
|
|
|
|
|
|
|
|
|
Customer Refund Liability, Noncurrent |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20,000,000
|
|
|
|
|
|
|
|
|
|
20,000,000
|
|
20,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
37,000,000
|
24,000,000
|
|
|
|
|
|
|
|
|
|
|
Unregulated Operating Revenue |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
101,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
50,000,000
|
82,000,000
|
$ 61,000,000
|
|
|
|
|
|
|
|
|
|
Exelon Generation Co L L C [Member] | Conowingo [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
License costs |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2],[3] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28,000,000
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
Other Commitment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 444,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,582,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,277,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
66,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[3] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 29,000,000
|
|
|
|
|
|
|
|
19,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
213,000,000
|
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 11,000,000
|
|
|
|
|
|
|
|
|
6,000,000
|
28,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Predecessor [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Predecessor [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
27,000,000
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,504,000,000
|
|
|
|
|
|
|
|
|
|
3,504,000,000
|
|
3,504,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,851,000,000
|
|
|
|
|
|
|
|
|
|
2,851,000,000
|
|
2,851,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
79,000,000
|
|
|
|
|
|
|
|
|
|
79,000,000
|
|
79,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[3] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
237,000,000
|
|
|
|
|
|
|
|
|
|
237,000,000
|
|
237,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
21,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other Commitment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
323,000,000
|
|
|
|
|
|
|
|
|
|
323,000,000
|
|
323,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
10,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Successor [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Pepco Holdings LLC [Member] | Successor [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18,000,000
|
|
|
|
|
|
|
|
|
|
18,000,000
|
|
18,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rate of return on common equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.60%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 66,000,000
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
15,000,000
|
4,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(57,000,000)
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
1,000,000
|
(6,000,000)
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
348,000,000
|
|
|
|
|
|
|
|
|
|
348,000,000
|
|
348,000,000
|
371,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
289,000,000
|
|
|
|
|
|
|
|
|
|
289,000,000
|
|
289,000,000
|
299,000,000
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
43,000,000
|
|
|
|
|
|
|
|
|
|
43,000,000
|
|
43,000,000
|
49,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20,000,000
|
2,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
140,000,000
|
|
|
|
|
|
|
|
|
|
140,000,000
|
|
140,000,000
|
160,000,000
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14,000,000
|
(12,000,000)
|
(25,000,000)
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 12,000,000
|
$ 3,000,000
|
$ 8,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.50%
|
11.30%
|
11.30%
|
|
|
|
|
|
|
|
|
|
Other Commitment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
86,000,000
|
|
|
|
|
|
|
|
|
|
86,000,000
|
|
$ 86,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Interim Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 2,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
4,000,000
|
$ 3,000,000
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
5,000,000
|
19,000,000
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Over Recovered Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
11,000,000
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Over-Recovered Natural Gas Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Over Recovered Electric Supply Cost [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,000,000
|
|
|
|
|
|
|
|
|
|
2,000,000
|
|
2,000,000
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 39,000,000
|
|
|
|
|
63,000,000
|
|
|
|
$ 15,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9.70%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(30,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Gas Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Increase in gas delivery service revenue resulting from rate case settlement or order. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.14
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
22,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(10,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Projected investment in smart grid infrastructure |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Delmarva Power and Light Company [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Projected investment in smart grid infrastructure |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 9,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2,000,000
|
10,000,000
|
$ (9,000,000)
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9.55%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
3,000,000
|
1,000,000
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
852,000,000
|
|
|
|
|
|
|
|
|
|
852,000,000
|
|
852,000,000
|
801,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
690,000,000
|
|
|
|
|
|
|
|
|
|
690,000,000
|
|
690,000,000
|
661,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
11,000,000
|
15,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
31,000,000
|
|
|
|
|
|
|
|
|
|
31,000,000
|
|
31,000,000
|
44,000,000
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
23,000,000
|
(5,000,000)
|
(7,000,000)
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 27,000,000
|
$ 1,000,000
|
$ 10,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.50%
|
11.30%
|
11.30%
|
|
|
|
|
|
|
|
|
|
Power Plant Output | MW |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
661
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Capital ProjectFundedByBonds |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 375,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CapitalProjectFundedByEntity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
500,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CapitalProjectFundedByAgency |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 125,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Other Commitment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
126,000,000
|
|
|
|
|
|
|
|
|
|
126,000,000
|
|
$ 126,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
6,000,000
|
$ 1,000,000
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
0
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
8,000,000
|
16,000,000
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Over Recovered Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
5,000,000
|
14,000,000
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Over Recovered Electric Supply Cost [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
2,000,000
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
53,000,000
|
|
86,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ (82,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.60%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Subsequent Event [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ (77,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Power Plant Output | MW |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
650
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Potomac Electric Power Company [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Power Plant Output | MW |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proposed Capital Expenditure |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.105
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
10,000,000
|
$ 4,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14,000,000
|
(2,000,000)
|
(3,000,000)
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 501,000,000
|
|
|
|
|
|
|
|
|
|
501,000,000
|
|
501,000,000
|
512,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
405,000,000
|
|
|
|
|
|
|
|
|
|
405,000,000
|
|
405,000,000
|
414,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
25,000,000
|
18,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
[2] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
19,000,000
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
25,000,000
|
25,000,000
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6,000,000
|
(12,000,000)
|
(7,000,000)
|
|
|
|
|
|
|
|
|
|
Fair value of net assets contributed to Generation in connection with the PHI Merger, net of cash |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 11,000,000
|
$ 3,000,000
|
$ 9,000,000
|
|
|
|
|
|
|
|
|
|
Public Utilities, Requested Return on Equity, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10.50%
|
11.30%
|
11.30%
|
|
|
|
|
|
|
|
|
|
Other Commitment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
111,000,000
|
|
|
|
|
|
|
|
|
|
111,000,000
|
|
$ 111,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Amount of Allowance for Earnings on Equity Capitalized for Rate Making Purposes |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
$ 0
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Energy Efficiency Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Over Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
5,000,000
|
8,000,000
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Over Recovered Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Over Recovered Electric Supply Cost [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory liabilities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Approved Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(45,000,000)
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Interim Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
19,000,000
|
$ 9,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Atlantic City Electric Company [Member] | Subsequent Event [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Utilities, Interim Rate Increase (Decrease), Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 29,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
8,000,000
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
8,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Rate of return on common equity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12.95%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
|
|
|
|
|
|
|
$ 41,000,000
|
|
8,000,000
|
|
8,000,000
|
13,000,000
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Deferred Project Costs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under-Recovered Non-Bypassable Transmission Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Smart Meter Related Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
23,000,000
|
|
|
|
|
|
|
|
|
|
23,000,000
|
|
23,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Advanced Metering Infrastructure Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
144,000,000
|
|
|
|
|
|
|
|
|
|
144,000,000
|
|
144,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Advanced Metering Infrastructure Costs [Member] | Potomac Electric Power Company [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Amount of Impairment to Carrying Amount of Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13,000,000
|
|
|
|
|
|
|
|
|
|
13,000,000
|
|
13,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Other Income |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Over-Recovered Natural Gas Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Abandonment costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Abandonment costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000,000
|
|
|
|
|
|
|
|
|
|
|
Abandonment costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
UnderRecoveredElectricEnergyCosts [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28,000,000
|
|
|
|
|
|
|
|
|
|
28,000,000
|
|
28,000,000
|
28,000,000
|
|
|
|
|
|
|
|
|
|
|
UnderRecoveredElectricEnergyCosts [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
4,000,000
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
UnderRecoveredElectricEnergyCosts [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
11,000,000
|
11,000,000
|
|
|
|
|
|
|
|
|
|
|
TransmissionCost [Member] | Commonwealth Edison Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15,000,000
|
|
|
|
|
|
|
|
|
|
15,000,000
|
|
15,000,000
|
31,000,000
|
|
|
|
|
|
|
|
|
|
|
TransmissionCost [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
4,000,000
|
12,000,000
|
|
|
|
|
|
|
|
|
|
|
TransmissionCost [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
1,000,000
|
7,000,000
|
|
|
|
|
|
|
|
|
|
|
TransmissionCost [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
TransmissionCost [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
6,000,000
|
2,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
188,000,000
|
189,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
188,000,000
|
189,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
|
|
|
|
|
|
|
|
188,000,000
|
|
188,000,000
|
189,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,000,000
|
11,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Commonwealth Edison Co [Member] | Electric Distribution [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
134,000,000
|
|
|
|
|
|
|
|
|
|
134,000,000
|
|
134,000,000
|
142,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Distribution Service Costs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
621,000,000
|
|
|
|
|
|
|
|
|
|
621,000,000
|
|
621,000,000
|
279,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
1,000,000
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
285,000,000
|
|
|
|
|
|
|
|
|
|
285,000,000
|
|
285,000,000
|
278,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
401,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
335,000,000
|
|
|
|
|
|
|
|
|
|
335,000,000
|
|
335,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
85,000,000
|
|
|
|
|
|
|
|
|
|
85,000,000
|
|
85,000,000
|
111,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
250,000,000
|
|
|
|
|
|
|
|
|
|
250,000,000
|
|
250,000,000
|
289,000,000
|
|
|
|
|
|
|
|
|
|
|
Energy Efficiency And Demand Response Programs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
$ 0
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Non-severance Merger Integration Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Asset, Amortization Period |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 years
|
|
|
|
|
|
|
|
|
|
|
|
Pension and Other Postretirement Benefits [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Asset, Amortization Period |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12 years
|
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
305,000,000
|
|
|
|
|
|
|
|
|
|
305,000,000
|
|
$ 305,000,000
|
286,000,000
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
278,000,000
|
|
|
|
|
|
|
|
|
|
278,000,000
|
|
278,000,000
|
255,000,000
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
26,000,000
|
|
|
|
|
|
|
|
|
|
26,000,000
|
|
26,000,000
|
30,000,000
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
|
|
|
|
|
|
|
|
1,000,000
|
|
1,000,000
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
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|
|
|
|
|
|
|
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|
|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Environmental Restoration Costs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
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|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Electric Energy And Transmission Costs [Member] | Commonwealth Edison Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
701,000,000
|
|
|
|
|
|
|
|
|
|
701,000,000
|
|
701,000,000
|
399,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Commonwealth Edison Co [Member] |
|
|
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|
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
164,000,000
|
|
|
|
|
|
|
|
|
|
164,000,000
|
|
164,000,000
|
140,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | PECO Energy Co [Member] |
|
|
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|
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
49,000,000
|
|
|
|
|
|
|
|
|
|
49,000,000
|
|
$ 49,000,000
|
63,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Asset, Amortization Period |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 years
|
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Amount of Impairment to Carrying Amount of Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
52,000,000
|
|
|
|
|
|
|
|
|
|
52,000,000
|
|
$ 52,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
230,000,000
|
|
|
|
|
|
|
|
|
|
230,000,000
|
|
230,000,000
|
196,000,000
|
|
|
|
|
|
|
|
|
|
|
Noncurrent regulatory assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
230,000,000
|
|
|
|
|
|
|
|
|
|
230,000,000
|
|
230,000,000
|
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
267,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
258,000,000
|
|
|
|
|
|
|
|
|
|
258,000,000
|
|
258,000,000
|
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
84,000,000
|
|
|
|
|
|
|
|
|
|
84,000,000
|
|
84,000,000
|
87,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
174,000,000
|
|
|
|
|
|
|
|
|
|
174,000,000
|
|
174,000,000
|
180,000,000
|
|
|
|
|
|
|
|
|
|
|
AMI Expenses [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
|
|
|
|
|
|
|
|
25,000,000
|
|
$ 25,000,000
|
6,000,000
|
|
|
|
|
|
|
|
|
|
|
Regulatory Asset, Amortization Period |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 years
|
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
$ 0
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,000,000
|
|
$ 6,000,000
|
|
|
|
|
|
|
$ 6,000,000
|
10,000,000
|
|
10,000,000
|
6,000,000
|
|
|
|
|
|
|
|
|
|
$ 4,000,000
|
Merger Integration Costs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15,000,000
|
|
|
|
|
|
|
|
|
|
15,000,000
|
|
15,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
|
|
|
|
|
|
|
|
4,000,000
|
|
4,000,000
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
|
|
|
|
|
|
|
|
11,000,000
|
|
11,000,000
|
0
|
|
|
|
|
|
|
|
|
|
|
Merger Integration Costs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
0
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
89,000,000
|
|
|
|
|
|
|
|
|
|
89,000,000
|
|
89,000,000
|
84,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Commonwealth Edison Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
23,000,000
|
|
|
|
|
|
|
|
|
|
23,000,000
|
|
23,000,000
|
43,000,000
|
|
|
|
|
|
|
|
|
|
|
Business Combination, Integration Related Costs |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,000,000
|
7,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | PECO Energy Co [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
|
|
0
|
|
0
|
1,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
38,000,000
|
|
|
|
|
|
|
|
|
|
38,000,000
|
|
38,000,000
|
40,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Pepco Holdings LLC [Member] | Predecessor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
33,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Pepco Holdings LLC [Member] | Successor [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28,000,000
|
|
|
|
|
|
|
|
|
|
28,000,000
|
|
28,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
|
|
|
|
|
|
|
|
5,000,000
|
|
5,000,000
|
11,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Potomac Electric Power Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
|
|
|
|
|
|
|
|
6,000,000
|
|
6,000,000
|
9,000,000
|
|
|
|
|
|
|
|
|
|
|
Under Recovered Energy And Transmission Costs [Member] | Atlantic City Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17,000,000
|
|
|
|
|
|
|
|
|
|
17,000,000
|
|
17,000,000
|
13,000,000
|
|
|
|
|
|
|
|
|
|
|
Legacy AMI [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
54,000,000
|
|
|
|
|
|
|
|
|
|
54,000,000
|
|
54,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Legacy AMI [Member] | Delmarva Power and Light Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Matters Additional Narrative Information [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Regulatory Assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14,000,000
|
|
|
|
|
|
|
|
|
|
14,000,000
|
|
14,000,000
|
|
|
|
|
|
|
|
|
|
|
|
Recoverable Smart Meter Related Costs [Member] | Baltimore Gas and Electric Company [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Assets |
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32,000,000
|
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32,000,000
|
|
32,000,000
|
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Recoverable Smart Meter Related Costs [Member] | Delmarva Power and Light Company [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Assets |
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41,000,000
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41,000,000
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|
41,000,000
|
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|
Recoverable Costs [Member] | Commonwealth Edison Co [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Assets |
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54,000,000
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54,000,000
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|
54,000,000
|
47,000,000
|
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Storm Costs [Member] | Commonwealth Edison Co [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Assets |
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|
20,000,000
|
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|
20,000,000
|
|
20,000,000
|
36,000,000
|
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|
Deferred Income Tax Transmission Related [Member] | Commonwealth Edison Co [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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Regulatory Assets |
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|
22,000,000
|
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|
22,000,000
|
|
22,000,000
|
15,000,000
|
|
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|
Deferred Income Tax Transmission Related [Member] | Baltimore Gas and Electric Company [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Regulatory Assets |
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|
38,000,000
|
|
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|
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|
38,000,000
|
|
38,000,000
|
16,000,000
|
|
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|
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|
Deferred Income Tax Transmission Related [Member] | Delmarva Power and Light Company [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Regulatory Assets |
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|
20,000,000
|
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|
20,000,000
|
|
20,000,000
|
18,000,000
|
|
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|
Deferred Income Tax Transmission Related [Member] | Potomac Electric Power Company [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Regulatory Assets |
|
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|
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|
|
|
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|
31,000,000
|
|
|
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|
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|
|
31,000,000
|
|
31,000,000
|
26,000,000
|
|
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|
|
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|
Deferred Income Tax Transmission Related [Member] | Atlantic City Electric Company [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Regulatory Assets |
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
19,000,000
|
|
|
|
|
|
|
|
|
|
19,000,000
|
|
19,000,000
|
15,000,000
|
|
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|
Accelerated Depreciation Costs of Non AMI Meters [Member] | Commonwealth Edison Co [Member] |
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Regulatory Matters Additional Narrative Information [Line Items] |
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|
Regulatory Assets |
|
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|
|
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|
|
162,000,000
|
|
|
|
|
|
|
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|
|
$ 162,000,000
|
|
$ 162,000,000
|
$ 137,000,000
|
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|
Non Utility Deferral [Member] | Atlantic City Electric Company [Member] | Electric Distribution [Member] |
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|
Regulatory Matters Additional Narrative Information [Line Items] |
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|
Increase (Decrease) in Other Regulatory Assets |
|
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|
|
|
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|
|
10,000,000
|
|
|
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|
|
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|
Uncollectible deferral Balance [Member] | Atlantic City Electric Company [Member] | Electric Distribution [Member] |
|
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|
Regulatory Matters Additional Narrative Information [Line Items] |
|
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|
|
|
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|
|
Increase (Decrease) in Other Regulatory Assets |
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
$ 7,000,000
|
|
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|
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