XML 146 R110.htm IDEA: XBRL DOCUMENT v3.24.1
Investment securities - Maturities of amortized costs/FV/Avg yield (Details 5) - CHF (SFr)
SFr in Millions
Dec. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Due within 1 year, amortized cost SFr 0  
Due from 1 to 5 years, amortized cost 1,417  
Debt securities held-to-maturity, amortized cost 1,417  
Accrued interest excluded from amortized cost base of total Debt securities held-to-maturity 19 SFr 10
Due within 1 year, fair value 0  
Due from 1 to 5 years, fair value 1,300  
Debt securities held-to-maturity, fair value SFr 1,300  
Due within 1 year, average yield (as a percent) 0.00%  
Due from 1 to 5 years, average yield (as a percent) 3.66%  
Total, average yield (as a percent) 3.66%