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SEGMENT INFORMATION (Tables)
3 Months Ended
Mar. 31, 2023
Segment Reporting [Abstract]  
Summary of Segment Information and Segmented Total Assets
Eversource's segment information is as follows:
For the Three Months Ended March 31, 2023
Eversource
(Millions of Dollars)
Electric DistributionNatural Gas DistributionElectric TransmissionWater DistributionOtherEliminationsTotal
Operating Revenues$2,588.6 $1,045.2 $458.6 $50.3 $413.8 $(760.9)$3,795.6 
Depreciation and Amortization(22.0)(77.0)(89.9)(13.3)(36.8)2.1 (236.9)
Other Operating Expenses(2,342.3)(730.4)(128.2)(27.9)(339.6)759.3 (2,809.1)
Operating Income$224.3 $237.8 $240.5 $9.1 $37.4 $0.5 $749.6 
Interest Expense$(69.3)$(21.2)$(41.5)$(9.4)$(85.1)$32.0 $(194.5)
Other Income, Net54.3 9.0 9.4 1.1 565.8 (550.6)89.0 
Net Income Attributable to Common Shareholders165.5 170.3 155.1 1.5 516.9 (518.1)491.2 
Cash Flows Used for Investments in Plant371.9 165.5 336.6 37.9 65.2 — 977.1 
For the Three Months Ended March 31, 2022
Eversource
(Millions of Dollars)
Electric
Distribution
Natural Gas
Distribution
Electric
Transmission
Water DistributionOtherEliminationsTotal
Operating Revenues$2,386.3 $927.6 $435.2 $48.5 $383.5 $(709.8)$3,471.3 
Depreciation and Amortization(351.6)(51.9)(81.9)(12.3)(30.2)1.6 (526.3)
Other Operating Expenses(1,845.6)(657.3)(129.3)(27.1)(331.4)708.8 (2,281.9)
Operating Income$189.1 $218.4 $224.0 $9.1 $21.9 $0.6 $663.1 
Interest Expense$(59.4)$(15.8)$(33.2)$(8.2)$(46.8)$10.1 $(153.3)
Other Income, Net47.6 10.1 8.9 2.2 495.9 (493.1)71.6 
Net Income Attributable to Common Shareholders140.9 164.0 148.5 3.7 468.7 (482.4)443.4 
Cash Flows Used for Investments in Plant280.5 127.3 266.9 27.8 62.1 — 764.6 

The following table summarizes Eversource's segmented total assets:
Eversource
(Millions of Dollars)
Electric
Distribution
Natural Gas
Distribution
Electric
Transmission
Water DistributionOtherEliminationsTotal
As of March 31, 2023$27,978.8 $8,127.8 $13,522.6 $2,804.2 $27,186.4 $(25,514.6)$54,105.2 
As of December 31, 202227,365.0 8,084.9 13,369.5 2,783.8 26,365.2 (24,737.5)53,230.9