FI - Carrying value and fair value not held at fair value (Details 16) - CHF (SFr)
SFr in Millions
Dec. 31, 2021
Dec. 31, 2020
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions SFr 68,623 SFr 57,994
Available-for-sale Securities, Debt Securities 1,005 607
Loans 10,243 11,408
Other assets 9,184 8,373
Financial liabilities    
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 13,213 13,594
Short-term borrowings 10,690 10,740
Long-term debt 68,722 70,976
Other liabilities 2,592 7,780
Carrying value of financial instruments not carried at fair value    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 277,766 277,137
Other assets 180,024 155,266
Financial liabilities    
Due to banks and deposits 407,607 402,589
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 8,703 10,128
Long-term debt 98,174 90,111
Other liabilities 12,460 16,012
Estimate of fair value    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 286,249 287,194
Other assets 180,069 155,290
Financial liabilities    
Due to banks and deposits 407,613 402,624
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 8,702 10,128
Long-term debt 100,557 93,214
Other liabilities 12,465 15,979
Estimate of fair value | Level 1    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 0
Loans 0 0
Other assets 164,097 138,672
Financial liabilities    
Due to banks and deposits 243,324 234,700
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 0
Short-term borrowings 0 0
Long-term debt 0 0
Other liabilities 1 0
Estimate of fair value | Level 2    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 272,527 272,660
Other assets 15,469 16,315
Financial liabilities    
Due to banks and deposits 164,289 167,924
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 8,702 10,128
Long-term debt 98,841 90,897
Other liabilities 12,021 15,567
Estimate of fair value | Level 3    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 0
Loans 13,722 14,534
Other assets 503 303
Financial liabilities    
Due to banks and deposits 0 0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 0
Short-term borrowings 0 0
Long-term debt 1,716 2,317
Other liabilities 443 412
Bank    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 68,623 57,994
Available-for-sale Securities, Debt Securities 1,003 605
Loans 10,243 11,408
Other assets 9,184 8,373
Financial liabilities    
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 13,307 13,688
Short-term borrowings 10,690 10,740
Long-term debt 67,788 70,243
Other liabilities 2,568 7,756
Bank | Carrying value of financial instruments not carried at fair value    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 286,438 285,570
Other assets 179,217 154,441
Financial liabilities    
Due to banks and deposits 408,624 403,704
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 14,646 10,568
Long-term debt 92,908 90,035
Other liabilities 12,542 16,131
Bank | Estimate of fair value    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 294,917 295,631
Other assets 179,258 154,464
Financial liabilities    
Due to banks and deposits 408,630 403,739
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 14,646 10,569
Long-term debt 95,299 93,033
Other liabilities 12,546 16,097
Bank | Estimate of fair value | Level 1    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 0
Loans 0 0
Other assets 163,307 137,763
Financial liabilities    
Due to banks and deposits 244,155 235,477
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 0
Short-term borrowings 0 0
Long-term debt 0 0
Other liabilities 0 0
Bank | Estimate of fair value | Level 2    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 35,283 34,282
Loans 281,195 281,097
Other assets 15,457 16,399
Financial liabilities    
Due to banks and deposits 164,475 168,262
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 22,061 23,399
Short-term borrowings 14,646 10,569
Long-term debt 93,597 90,716
Other liabilities 12,105 15,694
Bank | Estimate of fair value | Level 3    
Financial assets    
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 0
Loans 13,722 14,534
Other assets 494 302
Financial liabilities    
Due to banks and deposits 0 0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 0
Short-term borrowings 0 0
Long-term debt 1,702 2,317
Other liabilities SFr 441 SFr 403