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Group statement of comprehensive income (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statement of comprehensive income [abstract]      
Gains/(losses) on cash flow hedges, related tax $ (14) $ 11 $ 0
Exchange gains/(losses) on retranslation of foreign operations, related tax 2 2 4
Gains/(losses) on equity instruments classified as fair value through other comprehensive income, related tax $ 0 $ 0 $ 1