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Debt (Tables) | 12 Months Ended
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Dec. 31, 2023
Debt Disclosure [Abstract] |
Schedule of Debt | Long-term debt at December 31 was:
| Millions of Dollars
| 2023 | 2022
7.65% Debentures due 2023 | — |  | 78 |
2.125% Notes due 2024 | 461 |  | 900 |
3.35% Notes due 2024 | 265 |  | 426 |
2.4% Notes due 2025 | 366 |  | 900 |
8.2% Notes due 2025 | 134 |  | 134 |
3.35% Debentures due 2025 | 199 |  | 199 |
6.875% Debentures due 2026 | 67 |  | 67 |
7.8% Debentures due 2027 | 203 |  | 203 |
3.75% Notes due 2027 | 196 |  | 196 |
4.3% Notes due 2028 | 223 |  | 223 |
7.375% Debentures due 2029 | 92 |  | 92 |
7.0% Debentures due 2029 | 112 |  | 112 |
6.95% Notes due 2029 | 1,195 |  | 1,195 |
8.125% Notes due 2030 | 390 |  | 390 |
2.4% Notes due 2031 | 227 |  | 227 |
7.2% Notes due 2031 | 447 |  | 447 |
7.25% Notes due 2031 | 400 |  | 400 |
7.4% Notes due 2031 | 382 |  | 382 |
5.9% Notes due 2032 | 505 |  | 505 |
5.05% Notes due 2033 | 1,000 |  | — |
4.15% Notes due 2034 | 246 |  | 246 |
5.95% Notes due 2036 | 326 |  | 326 |
5.951% Notes serially maturing 2022 through 2037 | 603 |  | 631 |
5.9% Notes due 2038 | 350 |  | 350 |
6.5% Notes due 2039 | 1,588 |  | 1,588 |
3.758% Notes due 2042 | 785 |  | 785 |
4.3% Notes due 2044 | 750 |  | 750 |
5.95% Notes due 2046 | 329 |  | 329 |
7.9% Debentures due 2047 | 60 |  | 60 |
4.875% Notes due 2047 | 319 |  | 319 |
4.85% Notes due 2048 | 219 |  | 219 |
3.8% Notes due 2052 | 1,100 |  | 1,100 |
5.3% Notes due 2053 | 1,100 |  | — |
5.55% Notes due 2054 | 1,000 |  | — |
4.025% Notes due 2062 | 1,770 |  | 1,770 |
5.70% Notes due 2063 | 700 |  | — |
Marine Terminal Revenue Refunding Bonds due 2031 at 1.65% – 4.70% during 2023 and 0.07% – 4.10% during 2022 | 265 |  | 265 |
Industrial Development Bonds due 2035 at 1.85% – 4.70% during 2023 and 0.07% – 4.10% during 2022 | 18 |  | 18 |
Other | 21 |  | 23 |
Debt at face value | 18,413 |  | 15,855 |
Finance leases | 1,129 |  | 1,320 |
Net unamortized premiums, discounts and debt issuance costs | (605) |  | (532) |
Total debt | 18,937 |  | 16,643 |
Short-term debt | (1,074) |  | (417) |
Long-term debt | $ | 17,863 |  | 16,226 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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