XML 33 R18.htm IDEA: XBRL DOCUMENT
v3.22.1

Capitalization | 3 Months Ended
--- | ---
Mar. 31, 2022
Debt Disclosure [Abstract] |
Capitalization | Capitalization The carrying amounts and fair values of long-term debt at March 31, 2022 and December 31, 2021 were:
(Millions of Dollars) | 2022 | 2021
Long-Term Debt (including current portion) (a) | Carrying Amount | Fair Value | Carrying Amount | Fair Value
Con Edison | $23,022 | $23,812 | $23,044 | $26,287
CECONY | $18,384 | $19,175 | $18,382 | $21,382
(a)Amounts shown are net of unamortized debt expense and unamortized debt discount of $223 million and $191 million for Con Edison and CECONY, respectively, as of March 31, 2022 and $226 million and $193 million for Con Edison and CECONY, respectively, as of December 31, 2021. The fair values of the Companies' long-term debt have been estimated primarily using available market information and at March 31, 2022 are classified as Level 2 liabilities (see Note O).

X
- Definition Capitalization [Text Block] + References No definition available. + Details
Name: | ed_CapitalizationTextBlock
Namespace Prefix: | ed_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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