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Consolidated Statements Of Financial Position - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 1,799 $ 831
Short-term investments (Note 13) 60 60
Accounts receivable, net (Note 10) 1,505 1,595
Materials and supplies 638 751
Other current assets 212 222
Total current assets 4,214 3,459
Investments 2,164 2,050
Net properties (Note 11) 54,161 53,916
Operating lease assets (Note 16) 1,610 1,812
Other assets 249 436
Total assets 62,398 61,673
Current liabilities:    
Accounts payable and other current liabilities (Note 12) 3,104 3,094
Debt due within one year (Note 14) 1,069 1,257
Total current liabilities 4,173 4,351
Debt due after one year (Note 14) 25,660 23,943
Operating lease liabilities (Note 16) 1,283 1,471
Deferred income taxes (Note 7) 12,247 11,992
Other long-term liabilities 2,077 1,788
Commitments and contingencies (Note 17)
Total liabilities 45,440 43,545
Common shareholders' equity:    
Common shares, $2.50 par value, 1,400,000,000 authorized; 1,112,227,784 and 1,112,014,480 issued; 671,351,360 and 692,100,651 outstanding, respectively 2,781 2,780
Paid-in-surplus 4,864 4,523
Retained earnings 51,326 48,605
Treasury stock (40,420) (36,424)
Accumulated other comprehensive loss (Note 9) (1,593) (1,356)
Total common shareholders' equity 16,958 18,128
Total liabilities and common shareholders' equity $ 62,398 $ 61,673