Provisions and contingent liabilities (Tables)	12 Months Ended
Provisions and contingent liabilities (Tables)	Dec. 31, 2023
Disclosure Of Other Provisions [Line Items]
Total provisions recognized under both IAS 37 and IFRS 9 [textblock]	USD m 31.12.23 31.12.22 Provisions related to expected credit losses (IFRS 9, Financial Instruments ) 1 350 201 Provisions related to Credit Suisse loan commitments (IFRS 3, Business Combinations ) 2 1,924 Provisions related to litigation, regulatory and similar matters (IAS 37, Provisions, Contingent Liabilities and Contingent Assets ) 4,020 2,586 Acquisition-related contingent liabilities (IFRS 3, Business Combinations ) 2 3,832 Restructuring, real-estate and other provisions (IAS 37, Provisions, Contingent Liabilities and Contingent Assets ) 2,123 456 Total provisions and contingent liabilities 12,250 3,243 of which: Credit Suisse 2 9,681 1 Refer to Note 10 for more information. 2 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Total provisions with additional information [textblock]	USD m Litigation, regulatory and similar matters 1 Restructuring 2 Real estate 3 Other 4 Total 2023 Balance at the beginning of the year 2,586 130 129 197 3,042 Provisions recognized upon the acquisition of the Credit Suisse Group 5 2,883 68 108 578 3,637 Increase in provisions recognized in the income statement 909 1,031 12 492 2,444 Release of provisions recognized in the income statement (97) (129) (1) (137) (365) Provisions used in conformity with designated purpose (2,344) (370) (15) (29) (2,759) Foreign currency translation and other movements 85 12 27 21 145 Balance at the end of the year 4,020 741 259 1,123 6,144 of which: Credit Suisse 5 2,210 519 114 918 3,762 1 Consists of provisions for losses resulting from legal, liability and compliance risks. 2 Consists of USD 448 m of provisions for onerous contracts related to real estate as of 31 December 2023 (31 December 2022: USD 28 m) and USD 294 m of personnel-related restructuring provisions as of 31 December 2023 (31 December 2022: USD 102 m). 3 Mainly includes provisions for reinstatement costs with respect to leased properties. 4 Mainly includes provisions related to onerous contracts and employee benefits. 5 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure of provisions for litigation, regulatory and similar matters [text block]	Provisions for litigation, regulatory and similar matters by business division and in Group Items 1 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 2 Group Items 2 Total 2023 Balance at the beginning of the year 1,182 159 8 308 771 158 2,586 Provisions recognized upon the acquisition of the Credit Suisse Group 3 87 1 0 2 2,789 4 2,883 Increase in provisions recognized in the income statement 133 1 8 81 684 2 909 Release of provisions recognized in the income statement (8) (10) 0 (3) (48) (29) (97) Provisions used in conformity with designated purpose (199) 0 (1) (106) (2,036) (1) (2,344) Foreign currency translation and other movements 41 6 (1) 12 26 0 85 Balance at the end of the year 1,235 157 15 294 2,186 134 4,020 of which: Credit Suisse 3 15 1 2 8 2,182 2 2,210 1 Provisions, if any, for the matters described in items A2, B8 and B10 of this Note are recorded in Global Wealth Management; provisions, if any, for the matters described in items B1, B2, B3, B4, B5, B6, B7, B9, B11 and B12 of this Note are recorded in Non-core and Legacy; provisions, if any, for the matters described in items B13 and B14 of this Note are recorded in Group Items. Provisions, if any, for the matters described in items A1 and A4 of this Note are allocated between Global Wealth Management and Personal & Corporate Banking; and provisions, if any, for the matters described in item A3 are allocated between the Investment Bank and Group Items. 2 Starting with the third quarter of 2023, Non-core and Legacy represents a separate reportable segment and Group Functions has been renamed Group Items. Prior periods have been revised to reflect these changes. 3 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.