Consolidated Statement of Capitalization - CECONY (Parenthetical)	12 Months Ended
Dec. 31, 2025
CECONY \| Debenture Series 2024C, 4.825% Due 2027 \| Debentures
Debt instrument, SOFR variable rate	52.00%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration