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Derivative Instruments and Hedging Activities (Tables)
 3 Months Ended
Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Offsetting of Liabilities
The fair values of the Companies’ derivatives including the offsetting of assets and liabilities on the consolidated balance sheet at March 31, 2023 and December 31, 2022 were:
 
(Millions of Dollars)20232022
Balance Sheet LocationGross Amounts of
Recognized
Assets/(Liabilities)		Gross
Amounts
Offset		Net Amounts
of Assets/
(Liabilities) (a)		Gross Amounts of
Recognized
Assets/(Liabilities)		Gross
Amounts
Offset		Net Amounts
of Assets/
(Liabilities) (a)
Con Edison
Fair value of derivative assets
Current$203$(73)$130(b)$378$(332)$46(b)
Noncurrent58(32)26193(108)85
Total fair value of derivative assets held and used261(105)156571(440)131
Current - assets held for sale (d)———93(8)85(c)(d)
Noncurrent - assets held for sale (d)———831194(c)(d)
Total fair value of derivative assets$261$(105)$156$747$(437)$310
Fair value of derivative liabilities
Current$(196)$72$(124)(b)$(198)$166$(32)(b)
Noncurrent(174)38(136)(49)36(13)
Total fair value of derivative liabilities held and used(370)110(260)$(247)$202$(45)
Current - liabilities held for sale (d)———(31)6(25)(d)
Noncurrent - liabilities held for sale (d)———(3)(8)(11)(d)
Total fair value of derivative liabilities$(370)$110$(260)$(281)$200$(81)
Net fair value derivative assets/(liabilities)$(109)$5 $(104)$466$(237)$229
CECONY
Fair value of derivative assets
Current$190$(69)$121(b)$350$(312)$38(b)
Noncurrent56(31)25176(96)80
Total fair value of derivative assets$246$(100)$146$526$(408)$118
Fair value of derivative liabilities
Current$(188)$69$(119)(b)$(189)$160$(29)
Noncurrent(165)36(129)(43)34(9)
Total fair value of derivative liabilities$(353)$105$(248)$(232)$194$(38)
Net fair value derivative assets/(liabilities)$(107)$5$(102)$294$(214)$80
(a)Derivative instruments and collateral were offset on the consolidated balance sheet as applicable under the accounting rules. The Companies enter into master agreements for their commodity derivatives. These agreements typically provide offset in the event of contract termination. In such case, generally the non-defaulting party’s payable will be offset by the defaulting party’s payable. The non-defaulting party will customarily notify the defaulting party within a specific time period and come to an agreement on the early termination amount.
(b)At March 31, 2023, margin deposits for Con Edison ($14 million and $(7) million) were classified as derivative assets and derivative liabilities, respectively, and for CECONY ($14 million and $(2) million) were classified as derivative assets and derivative liabilities, respectively, on the consolidated balance sheet, but not included in the table. At December 31, 2022 margin deposits for Con Edison and CECONY of $13 million were classified as derivative assets, and ($(10) million and $(6) million, respectively) were classified as derivative
liabilities on the consolidated balance sheet, but not included in the table. Margin is collateral, typically cash, that the holder of a derivative instrument is required to deposit in order to transact on an exchange and to cover its potential losses with its broker or the exchange.
(c)Includes amounts for interest rate swaps of $75 million in noncurrent assets, $31 million in current assets. At December 31, 2022, the Clean Energy Businesses had interest rate swaps with notional amounts of $982 million. The expiration dates of the swaps ranged from 2025-2041.
(d)Amounts represent derivative assets and liabilities included in current assets and current liabilities held for sale, respectively, on Con Edison's consolidated balance sheet as of December 31, 2022. On March 1, 2023, Con Edison completed the sale of substantially all of the assets of the Clean Energy Businesses. See Note S and Note T.
Offsetting of Assets
The fair values of the Companies’ derivatives including the offsetting of assets and liabilities on the consolidated balance sheet at March 31, 2023 and December 31, 2022 were:
 
(Millions of Dollars)20232022
Balance Sheet LocationGross Amounts of
Recognized
Assets/(Liabilities)		Gross
Amounts
Offset		Net Amounts
of Assets/
(Liabilities) (a)		Gross Amounts of
Recognized
Assets/(Liabilities)		Gross
Amounts
Offset		Net Amounts
of Assets/
(Liabilities) (a)
Con Edison
Fair value of derivative assets
Current$203$(73)$130(b)$378$(332)$46(b)
Noncurrent58(32)26193(108)85
Total fair value of derivative assets held and used261(105)156571(440)131
Current - assets held for sale (d)———93(8)85(c)(d)
Noncurrent - assets held for sale (d)———831194(c)(d)
Total fair value of derivative assets$261$(105)$156$747$(437)$310
Fair value of derivative liabilities
Current$(196)$72$(124)(b)$(198)$166$(32)(b)
Noncurrent(174)38(136)(49)36(13)
Total fair value of derivative liabilities held and used(370)110(260)$(247)$202$(45)
Current - liabilities held for sale (d)———(31)6(25)(d)
Noncurrent - liabilities held for sale (d)———(3)(8)(11)(d)
Total fair value of derivative liabilities$(370)$110$(260)$(281)$200$(81)
Net fair value derivative assets/(liabilities)$(109)$5 $(104)$466$(237)$229
CECONY
Fair value of derivative assets
Current$190$(69)$121(b)$350$(312)$38(b)
Noncurrent56(31)25176(96)80
Total fair value of derivative assets$246$(100)$146$526$(408)$118
Fair value of derivative liabilities
Current$(188)$69$(119)(b)$(189)$160$(29)
Noncurrent(165)36(129)(43)34(9)
Total fair value of derivative liabilities$(353)$105$(248)$(232)$194$(38)
Net fair value derivative assets/(liabilities)$(107)$5$(102)$294$(214)$80
(a)Derivative instruments and collateral were offset on the consolidated balance sheet as applicable under the accounting rules. The Companies enter into master agreements for their commodity derivatives. These agreements typically provide offset in the event of contract termination. In such case, generally the non-defaulting party’s payable will be offset by the defaulting party’s payable. The non-defaulting party will customarily notify the defaulting party within a specific time period and come to an agreement on the early termination amount.
(b)At March 31, 2023, margin deposits for Con Edison ($14 million and $(7) million) were classified as derivative assets and derivative liabilities, respectively, and for CECONY ($14 million and $(2) million) were classified as derivative assets and derivative liabilities, respectively, on the consolidated balance sheet, but not included in the table. At December 31, 2022 margin deposits for Con Edison and CECONY of $13 million were classified as derivative assets, and ($(10) million and $(6) million, respectively) were classified as derivative
liabilities on the consolidated balance sheet, but not included in the table. Margin is collateral, typically cash, that the holder of a derivative instrument is required to deposit in order to transact on an exchange and to cover its potential losses with its broker or the exchange.
(c)Includes amounts for interest rate swaps of $75 million in noncurrent assets, $31 million in current assets. At December 31, 2022, the Clean Energy Businesses had interest rate swaps with notional amounts of $982 million. The expiration dates of the swaps ranged from 2025-2041.
(d)Amounts represent derivative assets and liabilities included in current assets and current liabilities held for sale, respectively, on Con Edison's consolidated balance sheet as of December 31, 2022. On March 1, 2023, Con Edison completed the sale of substantially all of the assets of the Clean Energy Businesses. See Note S and Note T.
Realized and Unrealized Gains or Losses on Commodity Derivatives
The following table presents the realized and unrealized gains or losses on derivatives that have been deferred or recognized in earnings for the three months ended March 31, 2023 and 2022:
For the Three Months Ended March 31,
          Con Edison          CECONY
(Millions of Dollars) Balance Sheet Location2023202220232022
Pre-tax gains/(losses) deferred in accordance with accounting rules for regulated operations:
CurrentDeferred derivative gains$(149)$339$(137)$312
NoncurrentDeferred derivative gains(126)45(111)41
Total deferred gains/(losses)$(275)$384$(248)$353
CurrentDeferred derivative losses$(16)$(36)$(12)$(32)
CurrentRecoverable energy costs(291)157(274)143
NoncurrentDeferred derivative losses(133)(34)(130)(34)
Total deferred gains/(losses)$(440)$87$(416)$77
Net deferred gains/(losses)$(715)$471$(664)$430
Income Statement Location
Pre-tax gains/(losses) recognized in income
Gas purchased for resale$4$5$— $— 
Non-utility revenue17(17)— — 
Other operations and maintenance expense— 3— 3 
Other interest expense (a)565— — 
Total pre-tax gains/(losses) recognized in income$26$56$— $3 
(a)Comprised of amounts related to interest rate swaps of the Clean Energy Businesses. On March 1, 2023, Con Edison completed the sale of substantially all of the assets of the Clean Energy Businesses. See Note S and Note T.
Hedged Volume of Derivative Transactions
The following table presents the hedged volume of Con Edison’s and CECONY’s commodity derivative transactions at March 31, 2023:
 
Electric Energy
(MWh) (a)(b)		Capacity (MW) (a)Natural Gas
(Dt) (a)(b)		Refined Fuels
(gallons)
Con Edison 30,093,325 48,600 273,950,000 4,116,000 
CECONY28,352,725 41,400 260,910,000 4,116,000 
(a)Volumes are reported net of long and short positions, except natural gas collars where the volumes of long positions are reported.
(b)Excludes electric congestion and gas basis swap contracts that are associated with electric and gas contracts and hedged volumes.
Aggregate Fair Value of Companies' Derivative Instruments with Credit-Risk-Related Contingent Features
The following table presents the aggregate fair value of the Companies’ derivative instruments with credit-risk-related contingent features that are in a net liability position, the collateral posted for such positions and the additional collateral that would have been required to be posted had the lowest applicable credit rating been reduced one level and to below investment grade at March 31, 2023:
(Millions of Dollars)Con Edison (a)CECONY (a)
Aggregate fair value – net liabilities$179$170
Collateral posted205205
Additional collateral (b) (downgrade one level from current ratings)166
Additional collateral (b)(c) (downgrade to below investment grade from current ratings)7056
(a)Non-derivative transactions for the purchase and sale of electricity and gas and qualifying derivative instruments, that have been designated as normal purchases or normal sales, are excluded from the table. These transactions primarily include purchases of electricity from independent system operators. In the event the Utilities are no longer extended unsecured credit for such purchases, the Companies would be required to post $1 million of additional collateral at March 31, 2023. For certain other such non-derivative transactions, the Companies could be required to post collateral under certain circumstances, including in the event counterparties had reasonable grounds for insecurity.
(b)The Companies measure the collateral requirements by taking into consideration the fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position plus amounts owed to counterparties for settled transactions and amounts required by counterparties for minimum financial security. The fair value amounts represent unrealized losses, net of any unrealized gains where the Companies have a legally enforceable right to offset.
(c)Derivative instruments that are net assets have been excluded from the table. At March 31, 2023, if Con Edison had been downgraded to below investment grade, it would have been required to post additional collateral for such derivative instruments of $23 million.