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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Operating revenues: |  |  |
Natural gas | $ 9,495 | $ 7,868 | $ 6,333
Electric | 4,334 | 4,783 | 4,658
Energy-related businesses | 2,891 | 1,788 | 1,866
Total revenues | 16,720 | 14,439 | 12,857
EXPENSES AND OTHER INCOME |  |  |
Operation and maintenance | (5,459) | (4,746) | (4,341)
Aliso Canyon litigation and regulatory matters | 0 | (259) | (1,593)
Depreciation and amortization | (2,227) | (2,019) | (1,855)
Franchise fees and other taxes | (677) | (635) | (596)
Gain on sale of assets | 1 | 0 | 36
Other income, net | 131 | 24 | 58
Interest income | 89 | 75 | 69
Interest expense | (1,309) | (1,054) | (1,198)
Income before income taxes and equity earnings | 2,627 | 1,343 | 219
Income tax expense | (490) | (556) | (99)
Equity earnings | 1,481 | 1,498 | 1,343
Net income | 3,618 | 2,285 | 1,463
Earnings attributable to noncontrolling interests | (543) | (146) | (145)
Preferred dividends | (44) | (44) | (63)
Preferred dividends of subsidiary | (1) | (1) | (1)
Earnings attributable to common shares | $ 3,030 | $ 2,094 | $ 1,254
Basic EPS: |  |  |
Earnings | $ 4.81 | $ 3.32 | $ 2.01
Weighted-average number of shares outstanding (in shares) | 630,296 | 630,318 | 623,510
Diluted EPS: |  |  |
Earnings | $ 4.79 | $ 3.31 | $ 2.01
Weighted Average Common Shares Outstanding | 632,733 | 632,757 | 626,073
Cost of natural gas |  |  |
EXPENSES AND OTHER INCOME |  |  |
Operating expenses | $ (3,719) | $ (2,603) | $ (1,597)
Cost of electric fuel and purchased power |  |  |
EXPENSES AND OTHER INCOME |  |  |
Operating expenses | (375) | (937) | (1,010)
Energy-related businesses cost of sales |  |  |
EXPENSES AND OTHER INCOME |  |  |
Operating expenses | $ (548) | $ (942) | $ (611)

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