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Variable Interest Entities (Tables)
9 Months Ended
Sep. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]  
Summary of VIEs
At September 30, 2021 and December 31, 2020, Con Edison’s consolidated balance sheet included the following amounts associated with its VIEs:
Tax Equity Projects
Great Valley Solar
(c)(d)
Copper Mountain - Mesquite Solar
 (c)(e)
CED Nevada Virginia (c)(h)
(Millions of Dollars)20212020202120202021
Non-utility property, less accumulated depreciation (f)(g) $278$284$435$446$647
Other assets403917417657
Total assets (a)$318$323$609$622$704
Other liabilities14137971328
Total liabilities (b)$14$13$79$71$328
(a)The assets of the Tax Equity Projects and CED Nevada Virginia represent assets of a consolidated VIE that can be used only to settle obligations of the consolidated VIE.
(b)The liabilities of the Tax Equity Projects and CED Nevada Virginia represent liabilities of a consolidated VIE for which creditors do not have recourse to the general credit of the primary beneficiary.
(c)Con Edison did not provide any financial or other support during the year that was not previously contractually required.
(d)Great Valley Solar consists of the Great Valley Solar 1, Great Valley Solar 2, Great Valley Solar 3 and Great Valley Solar 4 projects, for which the noncontrolling interest of the tax equity investor was $88 million and $82 million at September 30, 2021 and December 31, 2020, respectively.
(e)Copper Mountain - Mesquite Solar consists of the Copper Mountain Solar 4, Mesquite Solar 2 and Mesquite Solar 3 projects for which the noncontrolling interest of the tax equity investor was $122 million and $134 million at September 30, 2021 and December 31, 2020, respectively.
(f)Non-utility property is reduced by accumulated depreciation of $24 million for Great Valley Solar, $40 million for Copper Mountain - Mesquite Solar, and $5 million for CED Nevada Virginia at September 30, 2021.
(g)Non-utility property is reduced by accumulated depreciation of $18 million for Great Valley Solar and $30 million for Copper Mountain - Mesquite Solar at December 31, 2020.
(h)CED Nevada Virginia consists of the Copper Mountain Solar 5, Battle Mountain Solar and Water Strider Solar projects for which the noncontrolling interest of the tax equity investor was $128 million at September 30, 2021.