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Summary of Significant Accounting Policies and Other Matters (Tables) | 9 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Schedule of Basic and Diluted Earnings Per Share | For the three and nine months ended September 30, 2025 and 2024, basic and diluted EPS for Con Edison are calculated as follows:
| For the Three Months Ended September 30, | For the Nine Months Ended September 30,
(Millions of Dollars, except per share amounts/Shares in Millions) | 2025 | 2024 | 2025 | 2024
Net income for common stock | $688 | $588 | $1,726 | $1,510
Weighted average common shares outstanding – basic | 360.7 | 346.2 | 356.4 | 345.9
Add: Incremental shares attributable to effect of potentially dilutive securities | 1.2 | 1.3 | 1.2 | 1.3
Adjusted weighted average common shares outstanding – diluted | 361.9 | 347.5 | 357.6 | 347.2
Net Income per common share – basic | $1.91 | $1.70 | $4.84 | $4.37
Net Income per common share – diluted | $1.90 | $1.69 | $4.83 | $4.35
Schedule of Restrictions on Cash and Cash Equivalents | At September 30, 2025 and 2024, cash, temporary cash investments and restricted cash for Con Edison were as follows; CECONY did not have material restricted cash balances as of September 30, 2025 and 2024:
| At September 30,
| Con Edison
(Millions of Dollars) | 2025 | 2024 (a)
Cash and temporary cash investments | $181 | $93
Restricted cash | 1 | 9
Total cash, temporary cash investments and restricted cash | $182 | $102
(a)On March 1, 2023, Con Edison completed the sale of all of the stock of the Clean Energy Businesses. See Note Q. Con Edison retained one deferred project, Broken Bow II, a 75 MW nameplate capacity wind power project located in Nebraska. Con Edison's restricted cash for the 2024 period primarily included restricted cash of Broken Bow II, which was classified as held for sale as of September 30, 2024. The sale and transfer of Broken Bow II, including the related debt, was completed in January 2025. See N ote Q.
Schedule of Cash and Cash Equivalents | At September 30, 2025 and 2024, cash, temporary cash investments and restricted cash for Con Edison were as follows; CECONY did not have material restricted cash balances as of September 30, 2025 and 2024:
| At September 30,
| Con Edison
(Millions of Dollars) | 2025 | 2024 (a)
Cash and temporary cash investments | $181 | $93
Restricted cash | 1 | 9
Total cash, temporary cash investments and restricted cash | $182 | $102
(a)On March 1, 2023, Con Edison completed the sale of all of the stock of the Clean Energy Businesses. See Note Q. Con Edison retained one deferred project, Broken Bow II, a 75 MW nameplate capacity wind power project located in Nebraska. Con Edison's restricted cash for the 2024 period primarily included restricted cash of Broken Bow II, which was classified as held for sale as of September 30, 2024. The sale and transfer of Broken Bow II, including the related debt, was completed in January 2025. See N ote Q.

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