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Segments Of Business | 12 Months Ended
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Dec. 31, 2018
Segment Reporting [Abstract] |
Segments Of Business | Segments of Business At December 31, 2018, our operations are divided into two primary reportable segments. The Gas Distribution Operations segment provides natural gas service and transportation for residential, commercial and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland, Indiana and Massachusetts. The Electric Operations segment provides electric service in 20 counties in the northern part of Indiana. The following table provides information about our reportable segments. We use operating income as our primary measurement for each of the reported segments and make decisions on finance, dividends and taxes at the corporate level on a consolidated basis. Segment revenues include intersegment sales to affiliated subsidiaries, which are eliminated in consolidation. Affiliated sales are recognized on the basis of prevailing market, regulated prices or at levels provided for under contractual agreements. Operating income is derived from revenues and expenses directly associated with each segment.
Year Ended December 31, (in millions) | 2018 |  | 2017 |  | 2016
Operating Revenues |  |  |  |  |
Gas Distribution Operations |  |  |  |  |
Unaffiliated | $ | 3,406.4 |  |  | $ | 3,087.9 |  |  | $ | 2,818.2 |
Intersegment | 13.1 |  |  | 14.2 |  |  | 12.4 |
Total | 3,419.5 |  |  | 3,102.1 |  |  | 2,830.6 |
Electric Operations |  |  |  |  |
Unaffiliated | 1,707.4 |  |  | 1,785.7 |  |  | 1,660.8 |
Intersegment | 0.8 |  |  | 0.8 |  |  | 0.8 |
Total | 1,708.2 |  |  | 1,786.5 |  |  | 1,661.6 |
Corporate and Other |  |  |  |  |
Unaffiliated | 0.7 |  |  | 1.0 |  |  | 13.5 |
Intersegment | 517.6 |  |  | 510.8 |  |  | 413.3 |
Total | 518.3 |  |  | 511.8 |  |  | 426.8 |
Eliminations | (531.5 | ) |  | (525.8 | ) |  | (426.5 | )
Consolidated Operating Revenues | $ | 5,114.5 |  |  | $ | 4,874.6 |  |  | $ | 4,492.5 |
Year Ended December 31, (in millions) | 2018 |  | 2017 |  | 2016
Operating Income (Loss) |  |  |  |  |
Gas Distribution Operations | $ | (254.1 | ) |  | $ | 550.1 |  |  | $ | 569.7 |
Electric Operations | 386.1 |  |  | 367.4 |  |  | 301.3 |
Corporate and Other | (7.3 | ) |  | 3.7 |  |  | (4.9 | )
Consolidated Operating Income | $ | 124.7 |  |  | $ | 921.2 |  |  | $ | 866.1 |
Depreciation and Amortization |  |  |  |  |
Gas Distribution Operations | $ | 301.0 |  |  | $ | 269.3 |  |  | $ | 252.9 |
Electric Operations | 262.9 |  |  | 277.8 |  |  | 274.5 |
Corporate and Other | 35.7 |  |  | 23.2 |  |  | 19.7 |
Consolidated Depreciation and Amortization | $ | 599.6 |  |  | $ | 570.3 |  |  | $ | 547.1 |
Assets |  |  |  |  |
Gas Distribution Operations | $ | 13,527.0 |  |  | $ | 12,048.8 |  |  | $ | 11,096.4 |
Electric Operations | 5,735.2 |  |  | 5,478.6 |  |  | 5,233.3 |
Corporate and Other | 2,541.8 |  |  | 2,434.3 |  |  | 2,362.2 |
Consolidated Assets | $ | 21,804.0 |  |  | $ | 19,961.7 |  |  | $ | 18,691.9 |
Capital Expenditures(1) |  |  |  |  |
Gas Distribution Operations | $ | 1,315.3 |  |  | $ | 1,125.6 |  |  | $ | 1,054.4 |
Electric Operations | 499.3 |  |  | 592.4 |  |  | 420.6 |
Corporate and Other | — |  |  | 35.8 |  |  | 15.4 |
Consolidated Capital Expenditures | $ | 1,814.6 |  |  | $ | 1,753.8 |  |  | $ | 1,490.4 |
(1 Amounts differ from those presented on the Statements of Consolidated Cash Flows primarily due to the inclusion of capital expenditures included in current liabilities and AFUDC Equity.

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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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