Summary of Significant Accounting Policies and Other Matters (Tables)

3 Months Ended

Mar. 31, 2026

Accounting Policies [Abstract]

Schedule of Basic and Diluted Earnings Per Share

For the three months ended March 31, 2026 and 2025, basic and diluted EPS for Con Edison are calculated as follows:

	For the Three Months Ended March 31,
(Millions of Dollars, except per share amounts/Shares in Millions)	2026	2025
Net income for common stock	$924	$791
Weighted average common shares outstanding – basic	363.0	350.1
Add: Incremental shares attributable to effect of potentially dilutive securities	1.4	1.2
Adjusted weighted average common shares outstanding – diluted	364.4	351.3
Net Income per common share – basic	$2.55	$2.26
Net Income per common share – diluted	$2.54	$2.25