CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Current Assets:
Cash and Cash Equivalents	$ 387	$ 933
Short-term Investments (Note 9)	6	72
Accounts Receivable - Net (Note 8)	1,409	1,326
Materials and Supplies	420	414
Other Current Assets	83	75
Total Current Assets	2,305	2,820
Properties	53,331	52,191
Accumulated Depreciation	(17,083)	(16,533)
Properties - Net	36,248	35,658
Investment in Affiliates and Other Companies	2,574	2,520
Right-of-Use Lease Asset	476	487
Goodwill and Other Intangible Assets - Net	437	433
Other Long-term Assets	889	846
Total Assets	42,929	42,764
Current Liabilities:
Accounts Payable	1,273	1,290
Labor and Fringe Benefits Payable	453	480
Casualty, Environmental and Other Reserves (Note 4)	158	149
Current Maturities of Long-term Debt (Note 7)	616	606
Income and Other Taxes Payable	156	508
Other Current Liabilities	327	243
Total Current Liabilities	2,983	3,276
Casualty, Environmental and Other Reserves (Note 4)	304	313
Long-term Debt (Note 7)	18,550	17,897
Deferred Income Taxes - Net	7,718	7,725
Long-term Lease Liability	484	486
Other Long-term Liabilities	513	560
Total Liabilities	30,552	30,257
Shareholders' Equity:
Common Stock, $1 Par Value	1,864	1,900
Other Capital	882	846
Retained Earnings	9,850	9,988
Accumulated Other Comprehensive Loss (Note 10)	(224)	(232)
Non-controlling Minority Interest	5	5
Total Shareholders' Equity	12,377	12,507
Total Liabilities and Shareholders' Equity	$ 42,929	$ 42,764