v3.26.1
Earnings/(loss) per share - Schedule of Calculation of Basic and Diluted EPS/(LPS) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]            
Net income/(loss) available to stockholders $ 29 $ (7) $ (42) $ (14) $ 22 $ (56)
Effect of dilution (interest on unsecured senior convertible bond) 2   1   3 3
Diluted income/(loss) available to stockholders $ 31   $ (41)   $ 25 $ (53)
Basic earnings/(loss) per share:            
Weighted average number of common shares outstanding (in shares) 62   62   62 62
Diluted earnings/(loss) per share:            
Effect on dilution (in shares) 3   3   3 3
Weighted average number of common shares outstanding adjusted for the effects of dilution (in shares) 65   65   65 65
Basic earnings/(loss) per share (in dollars per share) $ 0.47   $ (0.68)   $ 0.36 $ (0.91)
Diluted earnings/(loss) per share (in dollars per share) $ 0.47   $ (0.68)   $ 0.36 $ (0.91)