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Note 12 - Accounts Payable and Other Current Liabilities - Schedule of Accounts Payable and Other Current Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Income and other taxes payable | $ 823 | $ 635
Accounts payable | 752 | 612
Accrued wages and vacation | 352 | 340
Interest payable | 330 | 326
Accrued casualty costs | 187 | 177
Other | 706 | 592
Total accounts payable and other current liabilities | 3,578 | 3,104
Equipment [Member] |  |
Equipment rents payable | 98 | 101
Accounts payable and Other Current Liabilities [Member] |  |
Current operating lease liabilities (Note 16) | $ 330 | $ 321

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