Other revenues (Details) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other Revenues      
Noncontrolling interests without SEI SFr 2 SFr 0 SFr 0
Loans held-for-sale (90) (34) (14)
Long-lived assets held-for-sale 232 26 252
Equity method investments 60 (254) 232
Other investments 253 769 1,141
Other 832 786 959
Other revenues 1,289 1,293 2,570
Bank      
Other Revenues      
Loans held-for-sale (90) (34) (14)
Long-lived assets held-for-sale 232 26 252
Equity method investments 60 (255) 230
Other investments 256 769 1,142
Other 1,108 1,009 1,183
Other revenues SFr 1,566 SFr 1,515 SFr 2,793