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v3.21.2

Financial Information by Business Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 3,613 | $ 3,333 | $ 10,261 | $ 9,286
Depreciation and amortization | 512 | 482 | 1,511 | 1,428
Operating income/(loss) | 850 | 860 | 2,129 | 2,147
Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 3,092 | 2,872 | 8,784 | 8,072
Depreciation and amortization | 429 | 401 | 1,267 | 1,187
Operating income/(loss) | 728 | 722 | 1,836 | 1,854
Clean Energy Businesses |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 58 | 58 | 172 | 173
Operating income/(loss) | 79 | 92 | 196 | 188
Con Edison Transmission |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 0 | 0 | 1 | 1
Operating income/(loss) | (2) | (2) | (7) | (6)
Electric |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization |  |  | 1,511 | 1,428
Operating income/(loss) |  |  | 2,129 | 2,147
CECONY | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 429 | 401 | 1,267 | 1,187
Operating income/(loss) | 728 | 722 | 1,836 | 1,854
CECONY | Electric | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 324 | 305 | 959 | 904
Operating income/(loss) | 834 | 813 | 1,337 | 1,413
CECONY | Gas | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 82 | 74 | 239 | 216
Operating income/(loss) | (48) | (34) | 490 | 440
CECONY | Steam | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 23 | 22 | 69 | 67
Operating income/(loss) | (58) | (57) | 9 | 1
O&R | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 24 | 23 | 71 | 67
Operating income/(loss) | 47 | 49 | 108 | 114
O&R | Electric | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 18 | 17 | 52 | 48
Operating income/(loss) | 55 | 58 | 78 | 86
O&R | Gas | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 6 | 6 | 19 | 19
Operating income/(loss) | (8) | (9) | 30 | 28
Operating segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 3,613 | 3,333 |  |
Operating segment | Clean Energy Businesses |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 264 | 222 | 779 | 566
Operating segment | Con Edison Transmission |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 1 | 1 | 3 | 3
Operating segment | Electric |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  |  | 10,261 | 9,286
Operating segment | CECONY | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 3,092 | 2,872 | 8,784 | 8,072
Operating segment | CECONY | Electric | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 2,730 | 2,562 | 6,661 | 6,178
Operating segment | CECONY | Gas | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 307 | 259 | 1,730 | 1,509
Operating segment | CECONY | Steam | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 55 | 51 | 393 | 385
Operating segment | O&R | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 257 | 238 | 699 | 647
Operating segment | O&R | Electric | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 223 | 208 | 522 | 483
Operating segment | O&R | Gas | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 34 | 30 | 177 | 164
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | (1) | 0 | (4) | (2)
Depreciation and amortization | 1 | 0 | 0 | 0
Operating income/(loss) | (2) | (1) | (4) | (3)
Other | Con Edison Transmission |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  |  | 3 |
Inter-segment | Electric |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Inter-segment | CECONY | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | (25) | (24) | (75) | (74)
Inter-segment | CECONY | Electric | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 5 | 4 | 14 | 13
Inter-segment | CECONY | Gas | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | 2 | 2 | 6 | 5
Inter-segment | CECONY | Steam | Subsidiaries |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues | $ 18 | $ 18 | $ 55 | $ 56

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