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Note 14 - Debt (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Debt [Table Text Block] |
Millions |  | 2021 |  |  | 2020 |
Notes and debentures, 2.2% to 7.1% due through April 6, 2071 |  | $ | 29,508 |  |  | $ | 26,608 |
Equipment obligations, 2.6% to 6.2% due through January 2, 2031 |  |  | 848 |  |  |  | 885 |
Commercial paper, 0.2% to 0.3% due through January 26, 2022 |  |  | 400 |  |  |  | 75 |
Finance leases, 3.1% to 8.0% due through December 10, 2028 |  |  | 336 |  |  |  | 449 |
Receivables Facility (Note 10) |  |  | 300 |  |  |  | - |
Term loans - floating rate, due August 31, 2022 |  |  | 100 |  |  |  | 250 |
Unamortized discount and deferred issuance costs |  |  | (1,763 | ) |  |  | (1,538 | )
Total debt |  |  | 29,729 |  |  |  | 26,729 |
Less: current portion |  |  | (2,166 | ) |  |  | (1,069 | )
Total long-term debt |  | $ | 27,563 |  |  | $ | 25,660 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
Millions |  |  |  |
2022 |  | $ | 2,180 |
2023 |  |  | 1,385 |
2024 |  |  | 1,439 |
2025 |  |  | 1,429 |
2026 |  |  | 1,016 |
Thereafter |  |  | 24,043 |
Total principal |  |  | 31,492 |
Unamortized discount and deferred issuance costs |  |  | (1,763 | )
Total debt |  | $ | 29,729 |
Unsecured Fixed Rate Debt Securities Issued Under Current Shelf Registration [Table Text Block] |
Date | Description of Securities
May 20, 2021 | $850 million of 2.375% Notes due May 20, 2031
| $1.0 billion of 3.200% Notes due May 20, 2041
| $650 million of 3.550% Notes due May 20, 2061
September 10, 2021 | $150 million of 2.375% Notes due May 20, 2031
| $850 million of 2.950% Notes due March 10, 2052

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