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CONSOLIDATED INCOME STATEMENTS - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Statement [Abstract] |  |  |
Revenue | $ 11,937 | $ 12,250 | $ 11,408
Expense |  |  |
Labor and Fringe | 2,616 | 2,738 | 2,946
Materials, Supplies and Other | 1,784 | 1,967 | 2,113
Depreciation | 1,349 | 1,331 | 1,315
Fuel | 906 | 1,046 | 864
Equipment and Other Rents | 408 | 395 | 429
Restructuring Charge (Note 1) | 0 | 0 | 240
Equity Earnings of Affiliates | (91) | (96) | (219)
Total Expense | 6,972 | 7,381 | 7,688
Operating Income | 4,965 | 4,869 | 3,720
Interest Expense | (737) | (639) | (546)
Restructuring Charge - Non-Operating (Note 1) | 0 | 0 | (85)
Other Income - Net (Note 14) | 88 | 74 | 53
Earnings Before Income Taxes | 4,316 | 4,304 | 3,142
Income Tax (Expense) Benefit (Note 12) | (985) | (995) | 2,329
Net Earnings | $ 3,331 | $ 3,309 | $ 5,471
Net Earnings Per Share |  |  |
Basic (in dollars per share) | $ 4.18 | $ 3.86 | $ 6.01
Assuming Dilution (in dollars per share) | $ 4.17 | $ 3.84 | $ 5.99
Average Common Shares Outstanding (Millions) |  |  |
Basic (shares) | 796 | 857 | 911
Assuming Dilution (shares) | 798 | 861 | 914

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