Condensed Consolidated Statements of Financial Position (Unaudited) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 947	$ 1,055
Short-term investments (Note 13)	20	16
Accounts receivable, net (Note 10)	2,036	2,073
Materials and supplies	775	743
Other current assets	371	261
Total current assets	4,149	4,148
Investments	2,649	2,605
Properties, net (Note 11)	58,036	57,398
Operating lease assets	1,345	1,643
Other assets	1,391	1,338
Total assets	67,570	67,132
Current liabilities:
Accounts payable and other current liabilities (Note 12)	3,714	3,683
Debt due within one year (Note 14)	1,652	1,423
Total current liabilities	5,366	5,106
Debt due after one year (Note 14)	29,761	31,156
Operating lease liabilities	934	1,245
Deferred income taxes	13,199	13,123
Other long-term liabilities	1,726	1,714
Commitments and contingencies (Note 15)
Total liabilities	50,986	52,344
Common shareholders' equity:
Common shares, $2.50 par value, 1,400,000,000 authorized; 1,113,023,704 and 1,112,854,806 issued; 606,908,876 and 609,703,814 outstanding, respectively	2,783	2,782
Paid-in-surplus	5,297	5,193
Retained earnings	64,677	62,093
Treasury stock	(55,481)	(54,666)
Accumulated other comprehensive loss (Note 9)	(692)	(614)
Total common shareholders' equity	16,584	14,788
Total liabilities and common shareholders' equity	$ 67,570	$ 67,132