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CONSOLIDATED INCOME STATEMENTS - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
[1]
Dec. 31, 2018
[1]
Income Statement [Abstract]      
Revenue $ 10,583 $ 11,937 $ 12,250
Expense      
Labor and Fringe 2,275 2,616 2,738
Materials, Supplies and Other 1,684 1,749 1,931
Depreciation 1,383 1,349 1,331
Fuel 541 906 1,046
Equipment and Other Rents 338 352 335
Total Expense 6,221 6,972 7,381
Operating Income 4,362 4,965 4,869
Interest Expense (754) (737) (639)
Other Income - Net (Note 14) 19 88 74
Earnings Before Income Taxes 3,627 4,316 4,304
Income Tax Expense (Note 12) (862) (985) (995)
Net Earnings $ 2,765 $ 3,331 $ 3,309
Net Earnings Per Share      
Basic (in dollars per share) $ 3.61 $ 4.18 $ 3.86
Assuming Dilution (in dollars per share) $ 3.60 $ 4.17 $ 3.84
Average Common Shares Outstanding (Millions)      
Basic (shares) 766 796 857
Assuming Dilution (shares) 768 798 861
[1] Certain prior year data has been reclassified to conform to the current presentation.