CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Current Assets:
Cash and Cash Equivalents	$ 1,139	$ 933
Short-term Investments (Note 9)	8	72
Accounts Receivable - Net (Note 8)	1,348	1,326
Materials and Supplies	438	414
Other Current Assets	87	75
Total Current Assets	3,020	2,820
Properties	52,674	52,191
Accumulated Depreciation	(16,816)	(16,533)
Properties - Net	35,858	35,658
Investment in Affiliates and Other Companies	2,537	2,520
Right-of-Use Lease Asset	486	487
Goodwill and Other Intangible Assets - Net	430	433
Other Long-term Assets	868	846
Total Assets	43,199	42,764
Current Liabilities:
Accounts Payable	1,315	1,290
Labor and Fringe Benefits Payable	391	480
Casualty, Environmental and Other Reserves (Note 4)	146	149
Current Maturities of Long-term Debt (Note 7)	605	606
Income and Other Taxes Payable	685	508
Other Current Liabilities	279	243
Total Current Liabilities	3,421	3,276
Casualty, Environmental and Other Reserves (Note 4)	319	313
Long-term Debt (Note 7)	18,521	17,897
Deferred Income Taxes - Net	7,739	7,725
Long-term Lease Liability	489	486
Other Long-term Liabilities	535	560
Total Liabilities	31,024	30,257
Shareholders' Equity:
Common Stock, $1 Par Value	1,878	1,900
Other Capital	864	846
Retained Earnings	9,655	9,988
Accumulated Other Comprehensive Loss (Note 10)	(227)	(232)
Non-controlling Minority Interest	5	5
Total Shareholders' Equity	12,175	12,507
Total Liabilities and Shareholders' Equity	$ 43,199	$ 42,764