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v3.22.1

Financial Information by Business Segment (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |
Total revenues | $ 4,060 | $ 3,677
Depreciation and amortization | 529 | 497
Operating income/(loss) | 799 | 860
Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 3,517 | 3,205
Depreciation and amortization | 446 | 415
Operating income/(loss) | 711 | 786
Clean Energy Businesses |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 59 | 58
Operating income/(loss) | 46 | 28
Con Edison Transmission |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 0 | 0
Operating income/(loss) | (3) | (3)
CECONY | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 446 | 415
Operating income/(loss) | 711 | 786
CECONY | Electric | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 332 | 315
Operating income/(loss) | 170 | 247
CECONY | Gas | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 90 | 77
Operating income/(loss) | 451 | 439
CECONY | Steam | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 24 | 23
Operating income/(loss) | 90 | 100
O&R | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 24 | 24
Operating income/(loss) | 46 | 49
O&R | Electric | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 17 | 17
Operating income/(loss) | 8 | 9
O&R | Gas | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 7 | 7
Operating income/(loss) | 38 | 40
Operating segment |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 4,060 | 3,677
Operating segment | Clean Energy Businesses |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 260 | 224
Operating segment | Con Edison Transmission |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 1 | 1
Operating segment | CECONY | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 3,517 | 3,205
Operating segment | CECONY | Electric | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 2,084 | 1,968
Operating segment | CECONY | Gas | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 1,131 | 973
Operating segment | CECONY | Steam | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 302 | 264
Operating segment | O&R | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 285 | 248
Operating segment | O&R | Electric | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 166 | 145
Operating segment | O&R | Gas | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 119 | 103
Other |  |
Segment Reporting Information [Line Items] |  |
Total revenues | (3) | (1)
Depreciation and amortization | 0 | 0
Operating income/(loss) | (1) | 0
Inter-segment | Electric |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 0 | 0
Inter-segment | CECONY | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | (25) | (25)
Inter-segment | CECONY | Electric | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 4 | 4
Inter-segment | CECONY | Gas | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | 2 | 2
Inter-segment | CECONY | Steam | Subsidiaries |  |
Segment Reporting Information [Line Items] |  |
Total revenues | $ 19 | $ 19

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