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Regulatory Matters (Tables)
3 Months Ended
Mar. 31, 2023
Regulated Operations [Abstract]  
Schedule of Regulatory Assets
Regulatory assets and liabilities at March 31, 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$121$78
Environmental remediation costs986991902906
Revenue taxes453436433417
Deferred storm costs262270158173
Municipal infrastructure support costs29292929 
Brooklyn Queens demand management program32333233
Meadowlands heater odorization project26272627
Recoverable Demonstration project costs17171716
Gate station upgrade project14141414
System peak reduction and energy efficiency programs802783796780
Unamortized loss on reacquired debt1011910
Deferred derivative losses - long term1653115626
Property tax reconciliation132121132121
Legacy meters2020
Gas service line deferred costs66996699
COVID - 19 customer arrears relief programs441104 436101 
Pension and other postretirement benefits deferrals196279166240
Preferred stock redemption19191919
MTA power reliability deferral84928492
Non-wire alternative projects21222122
COVID - 19 pandemic deferrals211292208288
Electric vehicle make ready39333630
Other202173186148
Regulatory assets – noncurrent4,3503,9744,0473,669
Deferred derivative losses - short term199184190178
Recoverable energy costs5212141108
Regulatory assets – current251305231286
Total Regulatory Assets$4,601$4,279$4,278$3,955
Regulatory liabilities
Future income tax*$1,694$1,753$1,559$1,616
Allowance for cost of removal less salvage1,3351,3151,1531,137
Net unbilled revenue deferrals108204108204 
Energy efficiency portfolio standard unencumbered funds5577
Settlement of prudence proceeding910910
Earnings sharing - electric, gas and steam1413 1010 
System benefit charge carrying charge76737469
BQDM and Demonstration project reconciliations21231921
Pension and other postretirement benefit deferrals16114411598
Property tax refunds35353535
COVID - 19 pandemic uncollectible reconciliation deferral10121012
Late payment charge deferral142127 137123 
Unrecognized pension and other postretirement costs1,4051,6381,3161,536
Net proceeds from sale of property65696369
Sales and use tax refunds35373336
Workers’ compensation12111211 
Deferred derivative gains - long term1914519130
Other391413338357
Regulatory liabilities – noncurrent$5,537$6,027$5,017$5,481
Refundable energy costs1113461
Revenue decoupling mechanism529221
Deferred derivative gains - short term162311150287
Regulatory liabilities – current$278$374$213$308
Total Regulatory Liabilities$5,815$6,401$5,230$5,789
* See "Other Regulatory Matters," above.
Schedule of Regulatory Liabilities
Regulatory assets and liabilities at March 31, 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$121$78
Environmental remediation costs986991902906
Revenue taxes453436433417
Deferred storm costs262270158173
Municipal infrastructure support costs29292929 
Brooklyn Queens demand management program32333233
Meadowlands heater odorization project26272627
Recoverable Demonstration project costs17171716
Gate station upgrade project14141414
System peak reduction and energy efficiency programs802783796780
Unamortized loss on reacquired debt1011910
Deferred derivative losses - long term1653115626
Property tax reconciliation132121132121
Legacy meters2020
Gas service line deferred costs66996699
COVID - 19 customer arrears relief programs441104 436101 
Pension and other postretirement benefits deferrals196279166240
Preferred stock redemption19191919
MTA power reliability deferral84928492
Non-wire alternative projects21222122
COVID - 19 pandemic deferrals211292208288
Electric vehicle make ready39333630
Other202173186148
Regulatory assets – noncurrent4,3503,9744,0473,669
Deferred derivative losses - short term199184190178
Recoverable energy costs5212141108
Regulatory assets – current251305231286
Total Regulatory Assets$4,601$4,279$4,278$3,955
Regulatory liabilities
Future income tax*$1,694$1,753$1,559$1,616
Allowance for cost of removal less salvage1,3351,3151,1531,137
Net unbilled revenue deferrals108204108204 
Energy efficiency portfolio standard unencumbered funds5577
Settlement of prudence proceeding910910
Earnings sharing - electric, gas and steam1413 1010 
System benefit charge carrying charge76737469
BQDM and Demonstration project reconciliations21231921
Pension and other postretirement benefit deferrals16114411598
Property tax refunds35353535
COVID - 19 pandemic uncollectible reconciliation deferral10121012
Late payment charge deferral142127 137123 
Unrecognized pension and other postretirement costs1,4051,6381,3161,536
Net proceeds from sale of property65696369
Sales and use tax refunds35373336
Workers’ compensation12111211 
Deferred derivative gains - long term1914519130
Other391413338357
Regulatory liabilities – noncurrent$5,537$6,027$5,017$5,481
Refundable energy costs1113461
Revenue decoupling mechanism529221
Deferred derivative gains - short term162311150287
Regulatory liabilities – current$278$374$213$308
Total Regulatory Liabilities$5,815$6,401$5,230$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$121$78
Environmental remediation costs985987900903
Revenue taxes448414431397
COVID-19 Deferral for Uncollectible Accounts Receivable174253172249
Deferred derivative losses - current199184190178
Deferred derivative losses - long term1653115626
Other40284027
Total$2,134$1,975$2,010$1,858
*This table presents regulatory assets not earning a return for which no cash outlay has been made.