v3.26.1
Shareholders' equity and share-based payments - Other comprehensive income (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Shareholders' equity and share-based payments      
Actuarial gains and losses $ 42 $ 20 $ (114)
Change in fair value of investments in equity instruments (193) 144 (11)
Tax effect 51 46 (11)
Currency translation adjustment generated by the parent company 8,737 (4,163) 2,573
Items not potentially reclassifiable to profit and loss 8,637 (3,953) 2,437
Currency translation adjustment (7,072) 2,759 (3,277)
Unrealized gain/(loss) of the period (7,084) 2,879 (2,524)
Less gain/(loss) included in net income (12) 120 753
Cash flow hedge (1,060) 3,119 2,898
Unrealized gain/(loss) of the period (1,709) 188 3,155
Less gain/(loss) included in net income (649) (2,931) 257
Variation of foreign currency basis spread 22 (32) (11)
unrealized gain/(loss) of the period 8 (50) (37)
Less gain/(loss) included in net income (14) (18) (26)
Share of other comprehensive income of equity affiliates, net amount (484) (246) (208)
Unrealized gain/(loss) of the period (460) (294) (194)
Less gain/(loss) included in net income 24 (48) 14
Other 8 1 (2)
Tax effect 255 (814) (730)
Sub-total items potentially reclassifiable to profit and loss (8,331) 4,787 (1,330)
Total other comprehensive income (net amount) $ 306 $ 834 $ 1,107