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Regulatory Matters (Tables)
6 Months Ended
Jun. 30, 2023
Regulated Operations [Abstract]  
Schedule of Regulatory Assets Regulatory assets and liabilities at June 30, 2023 and December 31, 2022 were comprised of the following items:
 
  
         Con Edison        CECONY
(Millions of Dollars)2023202220232022
Regulatory assets
Unrecognized pension and other postretirement costs$123$78$123$78
Environmental remediation costs985991900906
Revenue taxes454436434417
Deferred storm costs239270143173
Municipal infrastructure support costs929929 
Brooklyn Queens demand management program31333133
Meadowlands heater odorization project25272527
Recoverable Demonstration project costs18171716
Gate station upgrade project14141414
System peak reduction and energy efficiency programs832783825780
Unamortized loss on reacquired debt911810
Deferred derivative losses - long term65316026
Property tax reconciliation146121146121
Legacy meters1820
Gas service line deferred costs54995499
COVID - 19 customer arrears relief programs433104 430101 
Pension and other postretirement benefits deferrals11627993240
Preferred stock redemption19191919
MTA power reliability deferral77927792
Non-wire alternative projects20222022
COVID - 19 pandemic deferrals285292281288
Electric vehicle make ready50334530
Other202173190148
Regulatory assets – noncurrent4,2243,9743,9443,669
Deferred derivative losses - short term159184153178
Recoverable energy costs3112120108
Regulatory assets – current190305173286
Total Regulatory Assets$4,414$4,279$4,117$3,955
Regulatory liabilities
Future income tax*1,6491,7531,5141,616
Allowance for cost of removal less salvage1,3461,3151,1621,137
Net unbilled revenue deferrals158204158204 
Energy efficiency portfolio standard unencumbered funds5577
Settlement of prudence proceeding810810
Earnings sharing - electric, gas and steam1313 1010 
System benefit charge carrying charge81737969
BQDM and Demonstration project reconciliations19231721
Pension and other postretirement benefit deferrals17914413198
Property tax refunds35353535
COVID - 19 pandemic uncollectible reconciliation deferral912912
Late payment charge deferral150127 145123 
Unrecognized pension and other postretirement costs1,3401,6381,2571,536
Net proceeds from sale of property60695869
Sales and use tax refunds32373036
Workers’ compensation13111311 
Deferred derivative gains - long term2814526130
Other356413308357
Regulatory liabilities – noncurrent5,4816,0274,9675,481
Refundable energy costs493419
Revenue decoupling mechanism42921
Deferred derivative gains - short term10131193287
Regulatory liabilities – current154374112308
Total Regulatory Liabilities$5,635$6,401$5,079$5,789
* See "Other Regulatory Matters," above.
Schedule of Regulatory Liabilities Regulatory assets and liabilities at June 30, 2023 and December 31, 2022 were comprised of the following items:
 
  
         Con Edison        CECONY
(Millions of Dollars)2023202220232022
Regulatory assets
Unrecognized pension and other postretirement costs$123$78$123$78
Environmental remediation costs985991900906
Revenue taxes454436434417
Deferred storm costs239270143173
Municipal infrastructure support costs929929 
Brooklyn Queens demand management program31333133
Meadowlands heater odorization project25272527
Recoverable Demonstration project costs18171716
Gate station upgrade project14141414
System peak reduction and energy efficiency programs832783825780
Unamortized loss on reacquired debt911810
Deferred derivative losses - long term65316026
Property tax reconciliation146121146121
Legacy meters1820
Gas service line deferred costs54995499
COVID - 19 customer arrears relief programs433104 430101 
Pension and other postretirement benefits deferrals11627993240
Preferred stock redemption19191919
MTA power reliability deferral77927792
Non-wire alternative projects20222022
COVID - 19 pandemic deferrals285292281288
Electric vehicle make ready50334530
Other202173190148
Regulatory assets – noncurrent4,2243,9743,9443,669
Deferred derivative losses - short term159184153178
Recoverable energy costs3112120108
Regulatory assets – current190305173286
Total Regulatory Assets$4,414$4,279$4,117$3,955
Regulatory liabilities
Future income tax*1,6491,7531,5141,616
Allowance for cost of removal less salvage1,3461,3151,1621,137
Net unbilled revenue deferrals158204158204 
Energy efficiency portfolio standard unencumbered funds5577
Settlement of prudence proceeding810810
Earnings sharing - electric, gas and steam1313 1010 
System benefit charge carrying charge81737969
BQDM and Demonstration project reconciliations19231721
Pension and other postretirement benefit deferrals17914413198
Property tax refunds35353535
COVID - 19 pandemic uncollectible reconciliation deferral912912
Late payment charge deferral150127 145123 
Unrecognized pension and other postretirement costs1,3401,6381,2571,536
Net proceeds from sale of property60695869
Sales and use tax refunds32373036
Workers’ compensation13111311 
Deferred derivative gains - long term2814526130
Other356413308357
Regulatory liabilities – noncurrent5,4816,0274,9675,481
Refundable energy costs493419
Revenue decoupling mechanism42921
Deferred derivative gains - short term10131193287
Regulatory liabilities – current154374112308
Total Regulatory Liabilities$5,635$6,401$5,079$5,789
* See "Other Regulatory Matters," above.
Schedule of Regulatory Assets Not Earning Return
Regulatory Assets Not Earning a Return*
                  Con Edison                CECONY
(Millions of Dollars)2023202220232022
Unrecognized pension and other postretirement costs$123$78$123$78
Environmental remediation costs985987900903
Revenue taxes449414431397
COVID-19 Deferral for Uncollectible Accounts Receivable205253202249
Deferred derivative losses - current159184153178
Deferred derivative losses - long term65316026
Other53285227
Total$2,039$1,975$1,921$1,858
*This table presents regulatory assets not earning a return for which no cash outlay has been made.