Investment securities by type (Details 2) - CHF (SFr)
SFr in Millions |
Dec. 31, 2021 |
Dec. 31, 2020 |
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
SFr 1,013
|
SFr 596
|
| Debt Securities, Available-for-sale, Allowance for Credit Loss |
0
|
|
| Gross unrealized gains, Debt securities |
0
|
11
|
| Gross unrealized losses, Debt securities |
8
|
0
|
| Fair value, Debt securities |
1,005
|
607
|
| Debt securities issued by the Swiss federal, cantonal or local government entities |
|
|
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
2
|
3
|
| Gross unrealized gains, Debt securities |
0
|
0
|
| Gross unrealized losses, Debt securities |
0
|
0
|
| Fair value, Debt securities |
2
|
3
|
| Corporate debt securities |
|
|
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
1,011
|
593
|
| Gross unrealized gains, Debt securities |
0
|
11
|
| Gross unrealized losses, Debt securities |
8
|
0
|
| Fair value, Debt securities |
1,003
|
604
|
| Bank |
|
|
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
1,011
|
595
|
| Debt Securities, Available-for-sale, Allowance for Credit Loss |
(0)
|
|
| Gross unrealized gains, Debt securities |
0
|
10
|
| Gross unrealized losses, Debt securities |
8
|
0
|
| Fair value, Debt securities |
1,003
|
605
|
| Bank | Debt securities issued by the Swiss federal, cantonal or local government entities |
|
|
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
0
|
1
|
| Gross unrealized gains, Debt securities |
0
|
0
|
| Gross unrealized losses, Debt securities |
0
|
0
|
| Fair value, Debt securities |
0
|
1
|
| Bank | Corporate debt securities |
|
|
| Available-for-sale securities |
|
|
| Amortized cost, before allowance for credit losses, Debt Securities |
1,011
|
594
|
| Gross unrealized gains, Debt securities |
0
|
10
|
| Gross unrealized losses, Debt securities |
8
|
0
|
| Fair value, Debt securities |
SFr 1,003
|
SFr 604
|