Summary of significant accounting policies - Revision of prior period (Details 3) SFr in Millions |
12 Months Ended |
|
Dec. 31, 2021
CHF (SFr)
|
Dec. 31, 2020
CHF (SFr)
|
Dec. 31, 2019
CHF (SFr)
|
| Assets |
SFr 755,833
|
SFr 818,965
|
|
| Liabilities |
711,603
|
776,024
|
|
| Net Cash Provided by (Used in) Operating Activities |
36,938
|
(6,031)
|
SFr (17,338)
|
| Net Cash Provided by (Used in) Investing Activities |
(10,082)
|
14,450
|
(2,359)
|
| Net Cash Provided by (Used in) Financing Activities |
(47)
|
31,481
|
22,136
|
| Revision of Prior Period, Adjustment, Netting treatment [Member] |
|
|
|
| Assets |
13,143
|
|
|
| Liabilities |
(13,143)
|
|
|
| Net Cash Provided by (Used in) Investing Activities |
(70)
|
|
|
| Net Cash Provided by (Used in) Financing Activities |
SFr 70
|
|
|
| Leverage Ratio, increase/decrease (in basis points) |
10
|
|
|
| Revision of Prior Period, Adjustment, Share-based Compensation Reclassification [Member] |
|
|
|
| Net Cash Provided by (Used in) Operating Activities |
SFr 483
|
1,086
|
|
| Net Cash Provided by (Used in) Investing Activities |
(2,294)
|
(1,033)
|
|
| Net Cash Provided by (Used in) Financing Activities |
1,811
|
(53)
|
|
| Bank |
|
|
|
| Assets |
759,214
|
822,831
|
|
| Liabilities |
711,127
|
775,772
|
|
| Net Cash Provided by (Used in) Operating Activities |
36,893
|
(5,792)
|
(17,439)
|
| Net Cash Provided by (Used in) Investing Activities |
(10,139)
|
13,369
|
(4,206)
|
| Net Cash Provided by (Used in) Financing Activities |
179
|
32,205
|
SFr 23,970
|
| Bank | Revision of Prior Period, Adjustment, Netting treatment [Member] |
|
|
|
| Assets |
13,143
|
|
|
| Liabilities |
(13,143)
|
|
|
| Net Cash Provided by (Used in) Investing Activities |
(70)
|
|
|
| Net Cash Provided by (Used in) Financing Activities |
SFr 70
|
|
|
| Leverage Ratio, increase/decrease (in basis points) |
10
|
|
|
| Bank | Revision of Prior Period, Adjustment, Share-based Compensation Reclassification [Member] |
|
|
|
| Net Cash Provided by (Used in) Operating Activities |
SFr 371
|
979
|
|
| Net Cash Provided by (Used in) Investing Activities |
(2,273)
|
(1,045)
|
|
| Net Cash Provided by (Used in) Financing Activities |
SFr 1,902
|
SFr 66
|
|