XML 46 R31.htm IDEA: XBRL DOCUMENT
v3.21.1

Capitalization (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Debt Disclosure [Abstract] |
Carrying Amounts and Fair Values of Long-Term Debt | The carrying amounts and fair values of long-term debt at March 31, 2021 and December 31, 2020 were:
(Millions of Dollars) | 2021 | 2020
Long-Term Debt (including current portion) (a) | Carrying Amount | Fair Value | Carrying Amount | Fair Value
Con Edison | $21,916 | $24,533 | $22,349 | $26,808
CECONY | $16,791 | $19,251 | $16,789 | $20,974
(a)Amounts shown are net of unamortized debt expense and unamortized debt discount of $204 million and $173 million for Con Edison and CECONY, respectively, as of March 31, 2021 and $215 million and $176 million for Con Edison and CECONY, respectively, as of December 31, 2020.

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration