v3.25.4
Debt (Tables)
12 Months Ended
Dec. 31, 2025
Debt Disclosure [Abstract]  
Schedule of Debt
Long-term debt at December 31 was:
Millions of Dollars
20252024
2.4% Notes due 2025
 366 
8.2% Debentures due 2025
 134 
3.35% Notes due 2025
 199 
6.875% Debentures due 2026
67 67 
7.8% Debentures due 2027
120 120 
4.4% Notes due 2027
422 424 
3.75% Notes due 2027
196 196 
4.3% Notes due 2028
223 223 
7.375% Debentures due 2029
66 66 
7.0% Debentures due 2029
95 95 
5.3% Notes due 2029
84 86 
6.95% Notes due 2029
705 705 
4.7% Notes due 2030
1,350 1,350 
8.125% Notes due 2030
207 207 
2.4% Notes due 2031
227 227 
7.2% Notes due 2031
447 447 
7.25% Notes due 2031
268 268 
7.4% Notes due 2031
232 232 
4.85% Notes due 2032
650 650 
6.8% Notes due 2032
180 180 
5.9% Notes due 2032
505 505 
5.05% Notes due 2033
1,000 1,000 
5.7% Notes due 2034
103 103 
4.15% Notes due 2034
246 246 
5.0% Notes due 2035
1,250 1,250 
5.95% Notes due 2036
326 326 
5.951% Notes serially maturing 2022 through 2037
541 573 
6.6% Notes due 2037
335 335 
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 
5.2% Notes due 2045
186 186 
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 1,100 
5.55% Notes due 2054
1,000 1,000 
5.5% Notes due 2055
1,300 1,300 
4.025% Notes due 2062
1,770 1,770 
5.7% Notes due 2063
700 700 
5.65% Notes due 2065
650 650 
Marine Terminal Revenue Refunding Bonds due 2031 at 1.23% – 5.05% during 2025 and 1.78% – 4.80% during 2024
265 265 
Industrial Development Bonds due 2035 at 1.23% – 5.05% during 2025 and 1.78% – 4.22% during 2024
18 18 
St. John the Baptist Parish, State of Louisiana—Revenue Refunding Bonds due 20371: $200 at 2.20%, $200 at 2.375%, $200 at 4.05%, $400 at 3.30%1
1,000 1,000 
Other13 16 
Debt at face value23,347 24,085 
Finance leases801 940 
Net unamortized premiums, discounts and debt issuance costs(704)(701)
Total debt23,444 24,324 
Short-term debt(1,020)(1,035)
Long-term debt$22,424 23,289 
1Future mandatory purchase dates for these bonds: July 1, 2026 for the 2.20% bonds of $200 million, 2.375% bonds of $200 million, 4.05% bonds of $200 million and July 3, 2028 for the 3.30% bonds of $400 million. Subsequent to the mandatory purchase dates, we will also have the right to remarket
these bonds any time up to the 2037 maturity date.