CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and Cash Equivalents	$ 1,360	$ 1,958
Short-term Investments (Note 9)	79	129
Accounts Receivable - Net (Note 8)	1,399	1,313
Materials and Supplies	427	341
Other Current Assets	94	108
Total Current Assets	3,359	3,849
Properties	49,118	48,105
Accumulated Depreciation	(14,462)	(13,863)
Properties - Net	34,656	34,242
Investment in Affiliates and Other Companies	2,364	2,292
Right-of-Use Lease Asset	496	505
Goodwill and Other Intangible Assets - Net	509	502
Other Long-term Assets	466	522
Total Assets	41,850	41,912
Current Liabilities:
Accounts Payable	1,201	1,130
Labor and Fringe Benefits Payable	441	707
Casualty, Environmental and Other Reserves (Note 4)	133	144
Current Maturities of Long-term Debt (Note 7)	559	151
Income and Other Taxes Payable	361	111
Other Current Liabilities	239	228
Total Current Liabilities	2,934	2,471
Casualty, Environmental and Other Reserves (Note 4)	302	292
Long-term Debt (Note 7)	17,903	17,896
Deferred Income Taxes - Net	7,700	7,569
Long-term Lease Liability	487	488
Other Long-term Liabilities	570	571
Total Liabilities	29,896	29,287
Shareholders' Equity:
Common Stock, $1 Par Value	1,976	2,066
Other Capital	657	574
Retained Earnings	9,689	10,363
Accumulated Other Comprehensive Loss (Note 10)	(372)	(388)
Non-controlling Minority Interest	4	10
Total Shareholders' Equity	11,954	12,625
Total Liabilities and Shareholders' Equity	$ 41,850	$ 41,912