v3.25.2
Share-based compensation plans and shares held in trust - Summary of Share-Based Compensation Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Share Based Compensation Expense [Line Items]      
Share-based compensation expense $ 700 $ 807 $ 539
Equity-settled      
Disclosure Of Share Based Compensation Expense [Line Items]      
Share-based compensation expense $ 700 $ 807 $ 539