v3.26.1
Fair value by balance sheet grouping table (Tables)
3 Months Ended
Mar. 31, 2026
Fair Value Disclosures [Abstract]  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments The carrying amount and fair value of our total debt is as follows:
March 31, 2026
December 31, 2025
Millions of dollars
Level 1
Level 2
Total fair
value
Carrying
value
Level 1
Level 2
Total fair
value
Carrying
value
Total debt
$6,916
$98
$7,014
$7,160
$6,722
$357
$7,079
$7,158