XML 148 R125.htm IDEA: XBRL DOCUMENT v3.22.4
Segments Of Business (Schedule Of Operating Income Derived From Revenues And Expenses By Segment) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]      
Operating Revenues $ 5,850.6 $ 4,899.6 $ 4,681.7
Operating Income 1,265.8 1,006.9 550.8
Consolidated Depreciation and Amortization 820.8 748.4 725.9
Consolidated Assets 26,736.6 24,156.9 22,040.5
Payments to Acquire Property Plant and Equipment Including Captial Expenditures From Current Liabilities And Equity Method Investments 2,298.0 1,940.4 1,720.8
Gas Distribution Operations      
Segment Reporting Information [Line Items]      
Operating Revenues 4,007.2 3,171.2 3,128.1
Intersegment 4,019.8 3,183.5 3,140.2
Operating Income 915.8 617.5 199.1
Consolidated Depreciation and Amortization 415.9 383.0 363.1
Consolidated Assets 16,986.5 15,153.7 13,433.0
Payments to Acquire Property Plant and Equipment Including Captial Expenditures From Current Liabilities And Equity Method Investments 1,682.3 1,406.4 1,266.9
Electric Operations      
Segment Reporting Information [Line Items]      
Operating Revenues 1,830.9 1,696.3 1,535.9
Intersegment 1,831.7 1,697.1 1,536.6
Operating Income 362.4 387.8 348.8
Consolidated Depreciation and Amortization 362.9 329.4 321.3
Consolidated Assets 7,992.6 7,178.9 6,443.1
Payments to Acquire Property Plant and Equipment Including Captial Expenditures From Current Liabilities And Equity Method Investments 574.5 517.4 422.8
Corporate and Other      
Segment Reporting Information [Line Items]      
Operating Revenues 12.5 32.1 17.7
Intersegment 477.5 492.4 467.5
Operating Income (12.4) 1.6 2.9
Consolidated Depreciation and Amortization 42.0 36.0 41.5
Consolidated Assets 1,757.5 1,824.3 2,164.4
Payments to Acquire Property Plant and Equipment Including Captial Expenditures From Current Liabilities And Equity Method Investments 41.2 16.6 31.1
Unaffiliated | Gas Distribution Operations      
Segment Reporting Information [Line Items]      
Operating Revenues 4,007.2 3,171.2 3,128.1
Unaffiliated | Electric Operations      
Segment Reporting Information [Line Items]      
Operating Revenues 1,830.9 1,696.3 1,535.9
Unaffiliated | Corporate and Other      
Segment Reporting Information [Line Items]      
Operating Revenues 12.5 32.1 17.7
Intersegment | Gas Distribution Operations      
Segment Reporting Information [Line Items]      
Intersegment 12.6 12.3 12.1
Intersegment | Electric Operations      
Segment Reporting Information [Line Items]      
Intersegment 0.8 0.8 0.7
Intersegment | Corporate and Other      
Segment Reporting Information [Line Items]      
Intersegment 465.0 460.3 449.8
Eliminations      
Segment Reporting Information [Line Items]      
Intersegment $ (478.4) $ (473.4) $ (462.6)