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CONSOLIDATED INCOME STATEMENTS - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 30, 2016
Income Statement [Abstract] |  |  |
Revenue | $ 12,250 | $ 11,408 | $ 11,069
Expense |  |  |
Labor and Fringe | 2,738 | 2,946 | 3,135
Materials, Supplies and Other | 1,967 | 2,113 | 2,092
Depreciation | 1,331 | 1,315 | 1,301
Fuel | 1,046 | 864 | 713
Equipment and Other Rents | 395 | 429 | 465
Restructuring Charge (Note 1) | 0 | 240 | 0
Equity Earnings of Affiliates | (96) | (219) | (50)
Total Expense | 7,381 | 7,688 | 7,656
Operating Income | 4,869 | 3,720 | 3,413
Interest Expense | (639) | (546) | (579)
Debt Repurchase Expense | 0 | 0 | (115)
Restructuring Charge - Non-Operating (Note 1) | 0 | (85) | 0
Other Income - Net (Note 10) | 74 | 53 | 22
Earnings Before Income Taxes | 4,304 | 3,142 | 2,741
Income Tax (Expense) Benefit (Note 11) | (995) | 2,329 | (1,027)
Net Earnings | $ 3,309 | $ 5,471 | $ 1,714
Net Earnings Per Share |  |  |
Basic (in dollars per share) | $ 3.86 | $ 6.01 | $ 1.81
Assuming Dilution (in dollars per share) | $ 3.84 | $ 5.99 | $ 1.81
Average Common Shares Outstanding (Millions) |  |  |
Basic (shares) | 857 | 911 | 947
Assuming Dilution (shares) | 861 | 914 | 948
Cash Dividends Paid Per Common Share (in dollars per share) | $ 0.88 | $ 0.78 | $ 0.72

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Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration