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CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Operating revenues |  |  |
Electric |  | $ 2,685 | $ 2,763
Natural gas |  | 941 | 1,288
Other |  | 23 | 29
Total operating revenues |  | 3,649 | 4,080
Operating expenses |  |  |
Electric fuel and purchased power |  | 948 | 1,117
Cost of natural gas sold and transported |  | 483 | 844
Cost of sales — other |  | 8 | 12
Operating and maintenance expenses |  | 605 | 650
Conservation and demand side management expenses |  | 97 | 76
Depreciation and amortization |  | 658 | 624
Taxes, Other |  | 171 | 184
Total operating expenses |  | 2,970 | 3,507
Operating income |  | 679 | 573
Other income, net |  | 14 | 5
Earnings from equity method investments |  | 8 | 11
Allowance for funds used during construction — equity |  | 37 | 19
Interest charges and financing costs |  |  |
Interest charges — includes other financing costs |  | 291 | 253
Allowance for funds used during construction — debt |  | (14) | (10)
Total interest charges and financing costs |  | 277 | 243
Income before income taxes |  | 461 | 365
Income tax benefit |  | (27) | (53)
Net income |  | $ 488 | $ 418
Weighted average common shares outstanding: |  |  |
Basic (in shares) |  | 556 | 551
Diluted (in shares) | [1] | 556 | 551
Earnings per average common share: |  |  |
Basic (in dollars per share) |  | $ 0.88 | $ 0.76
Diluted (in dollars per share) |  | $ 0.88 | $ 0.76
[1] | Diluted common shares outstanding included common stock equivalents of 0.2 million for the three months ended March 31, 2024 and 2023.

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