Deposits (Details) - CHF (SFr)
SFr in Millions
Dec. 31, 2021
Dec. 31, 2020
Deposits    
Non-interest-bearing demand deposits SFr 5,259 SFr 6,316
Interest-bearing demand deposits 200,193 186,704
Savings deposits 68,501 71,533
Time deposits 137,831 142,791
Total deposits 411,784 407,344
of which due to banks 18,965 16,423
of which customer deposits 392,819 390,921
Overdrawn deposits not included in total deposits, reclassified as loans 86 106
Time Deposits, uninsured 128,526 136,687
Foreign    
Deposits    
Non-interest-bearing demand deposits 2,556 3,085
Interest-bearing demand deposits 47,200 41,995
Savings deposits 8,474 8,764
Time deposits 102,229 115,927
Total deposits 160,459 169,771
Switzerland    
Deposits    
Non-interest-bearing demand deposits 2,703 3,231
Interest-bearing demand deposits 152,993 144,709
Savings deposits 60,027 62,769
Time deposits 35,602 26,864
Total deposits 251,325 237,573
Bank    
Deposits    
Non-interest-bearing demand deposits 5,260 6,328
Interest-bearing demand deposits 201,026 187,468
Savings deposits 68,501 71,533
Time deposits 138,014 143,130
Total deposits 412,801 408,459
of which due to banks 18,960 16,420
of which customer deposits 393,841 392,039
Overdrawn deposits not included in total deposits, reclassified as loans 86 106
Time Deposits, uninsured 128,714 136,687
Bank | Foreign    
Deposits    
Non-interest-bearing demand deposits 2,557 3,097
Interest-bearing demand deposits 47,415 42,172
Savings deposits 8,474 8,764
Time deposits 102,239 115,942
Total deposits 160,685 169,975
Bank | Switzerland    
Deposits    
Non-interest-bearing demand deposits 2,703 3,231
Interest-bearing demand deposits 153,611 145,296
Savings deposits 60,027 62,769
Time deposits 35,775 27,188
Total deposits SFr 252,116 SFr 238,484