v3.26.1
Fair value of financial instruments (Tables)
6 Months Ended
Jun. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of fair value of financial instruments measured at amortized cost
The carrying values and estimated fair values of certain of our financial instruments as of the dates specified were as follows:

June 30, 2026December 31, 2025
(In $ millions)Fair
value
Carrying
value
Fair
value
Carrying
value
Liabilities
$700 million senior bond (Level 1)
677 687 — — 
$575 million secured bond (Level 1)
— — 598 563 
Unsecured senior convertible bond - debt component (Level 3)
55 50 56 50