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STATEMENTS OF CONSOLIDATED INCOME - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement [Abstract] |  |  |
Revenue | $ 65,872 | $ 60,906 | $ 58,363
Operating Expenses: |  |  |
Compensation and benefits | 34,588 | 34,770 | 31,028
Repairs and maintenance | 1,600 | 1,538 | 1,400
Depreciation and amortization | 2,282 | 2,224 | 2,084
Purchased transportation | 10,989 | 9,129 | 8,043
Fuel | 2,690 | 2,118 | 2,482
Other occupancy | 1,155 | 1,037 | 1,022
Other expenses | 5,039 | 4,623 | 4,636
Total Operating Expenses | 58,343 | 55,439 | 50,695
Operating Profit | 7,529 | 5,467 | 7,668
Other Income and (Expense): |  |  |
Investment income and other | 72 | 50 | 15
Interest expense | (453) | (381) | (341)
Total Other Income and (Expense) | (381) | (331) | (326)
Income Before Income Taxes | 7,148 | 5,136 | 7,342
Income Tax Expense | 2,238 | 1,705 | 2,498
Net Income | $ 4,910 | $ 3,431 | $ 4,844
Basic Earnings Per Share (in dollars per share) | $ 5.64 | $ 3.89 | $ 5.38
Diluted Earnings Per Share (in dollars per share) | $ 5.61 | $ 3.87 | $ 5.35

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