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Consolidated Statements of Income - Southern - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Revenues: |  |  |
Total operating revenues | $ 23,113 | $ 20,375 | $ 21,419
Operating Expenses: |  |  |
Other operations and maintenance | 6,088 | 5,413 | 5,624
Depreciation and amortization | 3,565 | 3,518 | 3,038
Taxes other than income taxes | 1,290 | 1,234 | 1,230
Estimated loss on Plant Vogtle Units 3 and 4 | 1,692 |  | 0
Impairment charges | 2 | 0 | 168
Gain on dispositions, net | (186) | (65) | (2,569)
Total operating expenses | 19,415 | 15,490 | 13,683
Operating Income | 3,698 | 4,885 | 7,736
Other Income and (Expense): |  |  |
Allowance for equity funds used during construction | 190 | 149 | 128
Earnings from equity method investments | 76 | 153 | 162
Interest expense, net of amounts capitalized | (1,837) | (1,821) | (1,736)
Impairment of leveraged leases | (7) | (206) | 0
Other income (expense), net | 456 | 336 | 252
Total other income and (expense) | (1,122) | (1,389) | (1,194)
Earnings Before Income Taxes | 2,576 | 3,496 | 6,542
Income taxes (benefit) | 267 | 393 | 1,798
Net Income | 2,309 | 3,103 | 4,744
Dividends on preferred stock of subsidiaries | 15 | 15 | 15
Net loss attributable to noncontrolling interests | (99) | (31) | (10)
Consolidated Net Income | $ 2,393 | $ 3,119 | $ 4,739
Earnings per share — |  |  |
Basic (in dollars per share) | $ 2.26 | $ 2.95 | $ 4.53
Diluted (in dollars per share) | $ 2.24 | $ 2.93 | $ 4.50
Average number of shares of common stock outstanding — (in millions) |  |  |
Basic (in shares) | 1,061 | 1,058 | 1,046
Diluted (in shares) | 1,068 | 1,065 | 1,054
Retail electric revenues |  |  |
Operating Revenues: |  |  |
Total operating revenues | $ 14,852 | $ 13,643 | $ 14,084
Wholesale revenues |  |  |
Operating Revenues: |  |  |
Total operating revenues | 2,455 | 1,945 | 2,152
Other electric revenues |  |  |
Operating Revenues: |  |  |
Total operating revenues | 718 | 672 | 636
Natural gas |  |  |
Operating Revenues: |  |  |
Total operating revenues | 4,380 | 3,434 | 3,792
Operating Expenses: |  |  |
Cost of sales | 1,619 | 972 | 1,319
Other revenues |  |  |
Operating Revenues: |  |  |
Total operating revenues | 708 | 681 | 755
Operating Expenses: |  |  |
Cost of sales | 357 | 327 | 435
Fuel |  |  |
Operating Expenses: |  |  |
Cost of sales | 4,010 | 2,967 | 3,622
Purchased power |  |  |
Operating Expenses: |  |  |
Cost of sales | $ 978 | $ 799 | $ 816

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