CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and Cash Equivalents	$ 956	$ 1,958
Short-term Investments	78	129
Accounts Receivable - Net (Note 8)	1,327	1,313
Materials and Supplies	427	341
Other Current Assets	123	108
Total Current Assets	2,911	3,849
Properties	48,970	48,105
Accumulated Depreciation	(14,493)	(13,863)
Properties - Net	34,477	34,242
Investment in Affiliates and Other Companies	2,338	2,292
Right-of-Use Lease Asset	495	505
Goodwill and Other Intangible Assets - Net	511	502
Other Long-term Assets	485	522
Total Assets	41,217	41,912
Current Liabilities:
Accounts Payable	1,120	1,130
Labor and Fringe Benefits Payable	444	707
Casualty, Environmental and Other Reserves (Note 4)	138	144
Current Maturities of Long-term Debt (Note 7)	10	151
Income and Other Taxes Payable	136	111
Other Current Liabilities	207	228
Total Current Liabilities	2,055	2,471
Casualty, Environmental and Other Reserves (Note 4)	299	292
Long-term Debt (Note 7)	17,898	17,896
Deferred Income Taxes - Net	7,662	7,569
Long-term Lease Liability	485	488
Other Long-term Liabilities	544	571
Total Liabilities	28,943	29,287
Shareholders' Equity:
Common Stock, $1 Par Value	2,006	2,066
Other Capital	624	574
Retained Earnings	10,030	10,363
Accumulated Other Comprehensive Loss (Note 10)	(390)	(388)
Non-controlling Minority Interest	4	10
Total Shareholders' Equity	12,274	12,625
Total Liabilities and Shareholders' Equity	$ 41,217	$ 41,912