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Financial Information by Business Segment (Tables)
6 Months Ended
Jun. 30, 2021
Segment Reporting [Abstract]  
Financial Data for Business Segments The financial data for the business segments for the three and six months ended June 30, 2021 and 2020 were as follows:
 
For the Three Months Ended June 30,
Operating
revenues
Inter-segment
revenues
Depreciation and
amortization
Operating
income/(loss)
(Millions of Dollars)20212020202120202021202020212020
CECONY
Electric$1,963$1,845$5$4$320$301$255$318
Gas44941622807299105
Steam748418192323(33)(34)
Consolidation adjustments— — (25)(25)— — — — 
Total CECONY$2,486$2,345$— $— $423$396$321$389
O&R
Electric$153$138$— $— $17$16$14$13
Gas4137— — 77(3)(3)
Total O&R$194$175$— $— $24$23$11$10
Clean Energy Businesses $291$198$— $— $55$57$89$82
Con Edison Transmission11— — — — (1)(1)
Other (a)(1)— — — — — (2)(1)
Total Con Edison$2,971$2,719$— $— $502$476$418$479
(a) Parent company and consolidation adjustments. Other does not represent a business segment.
For the Six Months Ended June 30,
Operating
revenues
Inter-segment
revenues
Depreciation and
amortization
Operating
income/(loss)
(Millions of Dollars)20212020202120202021202020212020
CECONY
Electric$3,931$3,616$9$9$635$598$501$600
Gas1,4231,25043157143538474
Steam338334373846456958
Consolidation adjustments— — (50)(50)— — — — 
Total CECONY$5,692$5,200$— $— $838$786$1,108$1,132
O&R
Electric$299$274$— $— $34$32$22$27
Gas143134— — 13133938
Total O&R$442$408$— $— $47$45$61$65
Clean Energy Businesses$515$344$— $— $114$115$117$96
Con Edison Transmission22— — — (4)(3)
Other (a)(3)(1)— — — — (3)(3)
Total Con Edison$6,648$5,953$— $— $1,000$946$1,279$1,287
(a) Parent company and consolidation adjustments. Other does not represent a business segment.