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Financial Information by Business Segment | 12 Months Ended
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Dec. 31, 2019
Segment Reporting [Abstract] |
Financial Information by Business Segment | Financial Information by Business Segment The business segments of each of the Companies, which are its operating segments, were determined based on management’s reporting and decision-making requirements in accordance with the accounting rules for segment reporting. Con Edison’s principal business segments are CECONY’s regulated utility activities, O&R’s regulated utility activities, the Clean Energy Businesses and Con Edison Transmission. CECONY’s principal business segments are its regulated electric, gas and steam utility activities. All revenues of these business segments are from customers located in the United States of America. Also, all assets of the business segments are located in the United States of America. The accounting policies of the segments are the same as those described in Note A. Common services shared by the business segments are assigned directly or allocated based on various cost factors, depending on the nature of the service provided. The financial data for the business segments are as follows:
As of and for the Year Ended December 31, 2019 (Millions of Dollars) | Operating revenues | Inter- segment revenues | Depreciation and amortization | Operating income | Other Income (deductions) | Interest charges | Income taxes on operating income (a) | Total assets | Capital expenditures
CECONY |  |  |  |  |  |  |  |  |
Electric | $8,062 | $17 | $1,053 | $1,758 | $(28) | $539 | $239 | $32,988 | $1,851
Gas | 2,132 | 7 | 231 | 528 | (4) | 147 | 99 | 11,090 | 1,078
Steam | 627 | 70 | 89 | 62 | (3) | 42 | 4 | 2,479 | 91
Consolidation adjustments | — |  | (94) | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total CECONY | $10,821 |  | $— |  | $1,373 | $2,348 | ($35) | $728 | $342 | $46,557 | $3,020
O&R |  |  |  |  |  |  |  |  |
Electric | $634 |  | $— |  | $60 | $98 | $(7) | $27 | $15 | $2,130 | $142
Gas | 259 | — |  | 24 | 41 | (4) | 14 | 6 | 876 | 61
Other | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total O&R | $893 |  | $— |  | $84 | $139 | $(11) | $41 | $21 | $3,006 | $203
Clean Energy Businesses | $857 |  | $— |  | $226 | $202 | $5 | $186 | $(58) | $6,528 | $248
Con Edison Transmission | 4 | — |  | 1 | (6) | 104 | 25 | 1 | 1,618 | 205
Other (b) | (1) | — |  | — |  | (7) | (12) | 11 | (6) | 370 | — |
Total Con Edison | $12,574 |  | $— |  | $1,684 | $2,676 | $51 | $991 | $300 | $58,079 | $3,676
As of and for the Year Ended December 31, 2018 (Millions of Dollars) | Operating revenues | Inter- segment revenues | Depreciation and amortization | Operating income | Other Income (deductions) | Interest charges | Income taxes on operating income (a) | Total assets | Capital expenditures
CECONY |  |  |  |  |  |  |  |  |
Electric | $7,971 | $16 | $984 | $1,799 | $(110) | $519 | $233 | $31,012 | $1,861
Gas | 2,078 | 7 | 205 | 478 | (23) | 131 | 87 | 9,710 | 1,050
Steam | 631 | 75 | 87 | 77 | (10) | 39 | 8 | 2,386 | 94
Consolidation adjustments | — |  | (98) | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total CECONY | $10,680 |  | $— |  | $1,276 | $2,354 | $(143) | $689 | $328 | $43,108 | $3,005
O&R |  |  |  |  |  |  |  |  |
Electric | $642 |  | $— |  | $56 | $93 | $(14) | $25 | $14 | $2,036 | $138
Gas | 249 | — |  | 21 | 39 | (5) | 14 | 7 | 856 | 67
Other | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total O&R | $891 |  | $— |  | $77 | $132 | $(19) | $39 | $21 | $2,892 | $205
Clean Energy Businesses | $763 |  | $— |  | $85 | $194 | $33 | $63 | $19 | $5,821 | $1,791
Con Edison Transmission | 4 | — |  | 1 | (7) | 91 | 20 | (1) | 1,425 | 248
Other (b) | (1) | — |  | (1) | (9) | (24) | 8 | 39 | 674 | — |
Total Con Edison | $12,337 |  | $— |  | $1,438 | $2,664 | $(62) | $819 | $406 | $53,920 | $5,249
As of and for the Year Ended December 31, 2017 (Millions of Dollars) | Operating revenues | Inter- segment revenues | Depreciation and amortization | Operating income | Other Income (deductions) | Interest charges | Income taxes on operating income (a) | Total assets | Capital expenditures
CECONY |  |  |  |  |  |  |  |  |
Electric | $7,972 | $16 | $925 | $1,974 | $(105) | $472 | $511 | $29,661 | $1,905
Gas | 1,901 | 6 | 185 | 495 | (23) | 113 | 152 | 8,387 | 909
Steam | 595 | 75 | 85 | 80 | (9) | 38 | 25 | 2,403 | 90
Consolidation adjustments | — |  | (97) | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total CECONY | $10,468 |  | $— |  | $1,195 | $2,549 | $(137) | $623 | $688 | $40,451 | $2,904
O&R |  |  |  |  |  |  |  |  |
Electric | $642 |  | $— |  | $51 | $115 | $(14) | $24 | $30 | $1,949 | $128
Gas | 232 | — |  | 20 | 46 | (5) | 12 | 12 | 824 | 61
Other | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |  | — |
Total O&R | $874 |  | $— |  | $71 | $161 | $(19) | $36 | $42 | $2,773 | $189
Clean Energy Businesses | $694 |  | $— |  | $74 | $69 | $33 | $43 | $(273) | $2,735 | $447
Con Edison Transmission | 2 | — |  | 1 | (8) | 80 | 16 | (11) | 1,222 | 66
Other (b) | (5) | — |  | — |  | 3 | (5) | 11 | 13 | 930 | — |
Total Con Edison | $12,033 |  | $— |  | $1,341 | $2,774 | $(48) | $729 | $459 | $48,111 | $3,606
(a) | For Con Edison, the income tax expense/(benefit) on non-operating income was $(4) million, $(5) million and $13 million in 2019, 2018 and 2017, respectively. For CECONY, the income tax expense/(benefit) on non-operating income was $(7) million, $(2) million and $(3) million in 2019, 2018 and 2017, respectively. At December 31, 2017, Con Edison re-measured its deferred tax assets and liabilities based upon the 21 percent corporate income tax rate under the TCJA. As a result, Con Edison, decreased its federal income tax expense by $259 million ($269 million, $11 million and $(21) million, respectively, for the Clean Energy Businesses, Con Edison Transmission and the parent company). See Note L to the financial statements in Item 8.
(b) Parent company and consolidation adjustments. Other does not represent a business segment.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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