XML 163 R127.htm IDEA: XBRL DOCUMENT v3.24.1
CECL (Details 12) - CHF (SFr)
SFr in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]      
Origination in current year SFr 0 SFr 0  
Origination in current year-1 7 7  
Origination in current year-2 0 0  
Origination in current year-3 0 0  
Origination in current year-4 0 47  
Origination 5 years or more 0 0  
Total term positions 7 54  
Revolving positions 1,264 1,711  
Other financial assets held at amortized cost, total 1,271 1,765  
Other financial assets, Gross write-offs (4,035) (7) SFr (8)
Origination In Current Year      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Origination In Current Year -1      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Origination In Current Year -2      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Origination In Current Year -3      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Origination In Current Year -4      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Origination In Current Year -5 or more      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Total term positions      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Revolving positions      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Financing receivable, before Allowance for Credit Loss and Fee      
Financing Receivable, Recorded Investment [Line Items]      
Other financial assets, Gross write-offs 0    
Investment grade | AAA to BBB      
Financing Receivable, Recorded Investment [Line Items]      
Origination in current year 0 0  
Origination in current year-1 0 0  
Origination in current year-2 0 0  
Origination in current year-3 0 0  
Origination in current year-4 0 0  
Origination 5 years or more 0 0  
Total term positions 0 0  
Revolving positions 0 0  
Other financial assets held at amortized cost, total 0 0  
Non-investment grade | BB to C      
Financing Receivable, Recorded Investment [Line Items]      
Origination in current year 0 0  
Origination in current year-1 7 7  
Origination in current year-2 0 0  
Origination in current year-3 0 0  
Origination in current year-4 0 47  
Origination 5 years or more 0 0  
Total term positions 7 54  
Revolving positions 1,264 1,711  
Other financial assets held at amortized cost, total 1,271 1,765  
Non-investment grade | D      
Financing Receivable, Recorded Investment [Line Items]      
Origination in current year 0 0  
Origination in current year-1 0 0  
Origination in current year-2 0 0  
Origination in current year-3 0 0  
Origination in current year-4 0 0  
Origination 5 years or more 0 0  
Total term positions 0 0  
Revolving positions 0 0  
Other financial assets held at amortized cost, total SFr 0 SFr 0