Note 19 - Related Parties (Details Textual) - UPRR [Member] - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| TTX Company [Member] | |||
| Accounts Payable, Related Parties, Current | $ 68 | $ 57 | |
| TTX Company [Member] | Car Hire Expenses [Member] | |||
| Related Party Transaction, Expenses from Transactions with Related Party | $ 402 | 375 | $ 375 |
| TTX Company [Member] | |||
| Equity Method Investment, Ownership Percentage | 37.03% | ||
| Equity Method Investments | $ 1,700 | $ 1,600 | |
| X | ||||||||||
- Definition Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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