v3.26.1
Subsequent events (Details)
$ in Millions
Jul. 06, 2026
director
Jul. 01, 2026
USD ($)
Aug. 13, 2026
USD ($)
Major business combination | Stash Financial, Inc. (“Stash”)      
Disclosure of non-adjusting events after reporting period [line items]      
Percentage of voting interests acquired   100.00%  
Percentage of voting equity interests acquired from initial payment   0.501  
Carrying amount of non-controlling interests acquired   $ 78  
Equity interests of acquirer   $ 21  
Equity interests of acquirer, term   3 years  
Major ordinary share transactions      
Disclosure of non-adjusting events after reporting period [line items]      
Share repurchase program, authorized, amount     $ 750
Changes in board of directors      
Disclosure of non-adjusting events after reporting period [line items]      
Number of board members | director 6    
Number of directors retired | director 1