v3.25.4
Restructuring income/costs - Restructuring and related costs (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]      
Restructuring costs $ 448 $ 359 $ 780
Employee separation      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 106 64 74
Divestitures      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 30 164 586
Contract termination      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 4 7 7
Long-lived asset impairments      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs 17 6 3
Other restructuring costs      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs $ 291 $ 118 $ 110