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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Current Assets: |  |
Cash and Cash Equivalents | $ 2,955 | $ 3,129
Short-term Investments | 2 | 2
Accounts Receivable - Net (Note 8) | 957 | 912
Materials and Supplies | 298 | 302
Other Current Assets | 93 | 96
Total Current Assets | 4,305 | 4,441
Properties | 45,593 | 45,530
Accumulated Depreciation | (13,190) | (13,086)
Properties - Net | 32,403 | 32,444
Investment in Affiliates and Other Companies | 2,007 | 1,985
Right-of-Use Lease Asset | 467 | 472
Other Long-term Assets | 510 | 451
Total Assets | 39,692 | 39,793
Current Liabilities: |  |
Accounts Payable | 859 | 809
Labor and Fringe Benefits Payable | 419 | 482
Casualty, Environmental and Other Reserves (Note 4) | 89 | 90
Current Maturities of Long-term Debt (Note 7) | 41 | 401
Income and Other Taxes Payable | 237 | 73
Other Current Liabilities | 155 | 164
Total Current Liabilities | 1,800 | 2,019
Casualty, Environmental and Other Reserves (Note 4) | 229 | 224
Long-term Debt (Note 7) | 16,306 | 16,304
Deferred Income Taxes - Net | 7,226 | 7,168
Long-term Lease Liability | 453 | 455
Other Long-term Liabilities | 518 | 513
Total Liabilities | 26,532 | 26,683
Shareholders' Equity: |  |
Common Stock, $1 Par Value | 757 | 763
Other Capital | 448 | 409
Retained Earnings | 12,476 | 12,527
Accumulated Other Comprehensive Loss (Note 11) | (530) | (598)
Non-controlling Minority Interest | 9 | 9
Total Shareholders' Equity | 13,160 | 13,110
Total Liabilities and Shareholders' Equity | $ 39,692 | $ 39,793

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