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Capitalization (Tables) | 9 Months Ended
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Sep. 30, 2019
Debt Disclosure [Abstract] |
Carrying Amounts and Fair Values of Long-Term Debt | The carrying amounts and fair values of long-term debt at September 30, 2019 and December 31, 2018 were:
(Millions of Dollars) | 2019 | 2018
Long-Term Debt (including current portion) (a) | Carrying Amount | Fair Value | Carrying Amount | Fair Value
Con Edison | $19,451 | $22,412 | $18,145 | $18,740
CECONY | $14,374 | $17,047 | $14,151 | $14,685
(a) | Amounts shown are net of unamortized debt expense and unamortized debt discount of $167 million and $141 million for Con Edison and CECONY, respectively, as of September 30, 2019 and $185 million and $139 million for Con Edison and CECONY, respectively, as of December 31, 2018.

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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