Estimated unrecognized deferred compensation (Details 2)
SFr in Millions
12 Months Ended
Dec. 31, 2021
CHF (SFr)
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense SFr 1,136
Aggregate remaining weighted-average requisite service period (years)  
Aggregate remaining requisite service period (in years) 1 year 4 months 24 days
Deferred cash awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense SFr 223
Retention Awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 284
Contingent Capital Awards (CCA)  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 134
Performance shares | Performance share awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 146
Stock compensation plan | Share awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 349
Bank  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense SFr 1,111
Aggregate remaining weighted-average requisite service period (years)  
Aggregate remaining requisite service period (in years) 1 year 4 months 24 days
Bank | Deferred cash awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense SFr 221
Bank | Retention Awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 284
Bank | Contingent Capital Awards (CCA)  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 129
Bank | Performance shares | Performance share awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense 139
Bank | Stock compensation plan | Share awards  
Estimated unrecognized compensation expense  
Total estimated unrecognized compensation expense SFr 338