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Consolidated Income Statement - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
OPERATING REVENUES      
TOTAL OPERATING REVENUES $ 14,663 $ 15,670 $ 13,676 Close
OPERATING EXPENSES      
Depreciation and amortization 2,031 2,056 2,032
Taxes, other than income taxes 3,043 3,005 2,810
TOTAL OPERATING EXPENSES 12,332 13,046 10,850 Close
Gain on sale of the Clean Energy Businesses 865 0 0 Close
OPERATING INCOME 3,196 2,624 2,826 Close
OTHER INCOME (DEDUCTIONS)       Close
Investment income (loss) 62 20 (420) Close
Other income 834 402 22 CloseClose
Allowance for equity funds used during construction 26 19 21 Close
Other deductions (92) (115) (161) Close
TOTAL OTHER INCOME (DEDUCTIONS) 830 326 (538) Close
Total Other Income Expenses 1660.0 652.0 -1076.0 0.0 0 Close
INCOME BEFORE INTEREST AND INCOME TAX EXPENSE 4,026 2,950 2,288 CloseClose
INTEREST EXPENSE (INCOME)      
Interest on long-term debt 962 987 930
Other interest expense (income) 113 (99) (14)
Allowance for borrowed funds used during construction (52) (36) (11)
NET INTEREST EXPENSE 1,023 852 905
INCOME BEFORE INCOME TAX EXPENSE 3,003 2,098 1,383
INCOME TAX EXPENSE 487 498 190 Close
NET INCOME 2,516 1,600 1,193 Close
Loss attributable to non-controlling interest (3) (60) (153)
NET INCOME FOR COMMON STOCK $ 2,519 $ 1,660 $ 1,346
Net income per common share — basic (in dollars per share) $ 7.25 $ 4.68 $ 3.86
Net income per common share — diluted (in dollars per share) $ 7.21 $ 4.66 $ 3.85
AVERAGE NUMBER OF SHARES OUTSTANDING — BASIC (in shares) 347.7 354.5 348.4
AVERAGE NUMBER OF SHARES OUTSTANDING — DILUTED (in shares) 349.3 355.8 349.4
Electric      
OPERATING REVENUES      
TOTAL OPERATING REVENUES $ 10,835 $ 10,522 $ 9,485
Gas      
OPERATING REVENUES      
TOTAL OPERATING REVENUES 3,127 3,237 2,638
OPERATING EXPENSES      
Operating costs 829 1,245 690
Steam      
OPERATING REVENUES      
TOTAL OPERATING REVENUES 569 593 532
Non-utility      
OPERATING REVENUES      
TOTAL OPERATING REVENUES 132 1,318 1,021
Purchased power      
OPERATING EXPENSES      
Operating costs 2,541 2,479 1,835
Fuel      
OPERATING EXPENSES      
Operating costs 282 356 229
Other operations and maintenance      
OPERATING EXPENSES      
Operating costs $ 3,606 $ 3,905 $ 3,254