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Earnings per share - EPS Data (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Earnings per share      
(Loss)/profit attributable to equity holders as presented in the income statement $ (3) $ (50) $ 237
Less: Dividends on preferred shares (see note 26) (24) (24) (11)
(Loss)/profit attributable to equity holders used in calculating earnings per share $ (27) $ (74) $ 226
Weighted average number of ordinary shares for EPS (millions) 597.7 597.6 601.0
(Loss)/earnings per share - Basic $ (0.05) $ (0.12) $ 0.38
(Loss)/profit attributable to equity holders used in calculating earnings per share - Diluted $ (27) $ (74) $ 226
Weighted average number of ordinary shares for EPS (millions) - Diluted 597.7 597.6 601.0
(Loss)/earnings per share - Diluted $ (0.05) $ (0.12) $ 0.38
Dilutive potential shares 0.0 0.0 0.0