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Material Contingencies - Con Edison Transmission (Details) - Payment Guarantee by CET Electric of Contributions to New York Transco LLC | 12 Months Ended
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Dec. 31, 2024
Guarantor Obligations [Line Items] |
Estimated project cost percentage | 175.00%
NY Transco |
Guarantor Obligations [Line Items] |
Ownership interest, percentage | 45.70%

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