Ubs (AMUB) 6-K 31 Aug 23 2023 Q2 Current report (foreign) Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2023
Entity Information [Line Items]
Entity registrant name	UBS Group AG
Entity central index key	0001610520
Current fiscal year end date	--12-31
Document type	6-K
Document period end date	Jun. 30, 2023
Amendment flag	false
Document fiscal year focus	2023
Document fiscal period focus	Q2

Consolidated Income Statement

Consolidated Income Statement - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Line Items]
Interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	$ 7,101	$ 4,777	$ 2,380	$ 11,878	$ 4,525
Interest expense from financial instruments measured at amortized cost	(5,880)	(3,814)	(1,070)	(9,695)	(1,852)
Net interest income from financial instruments measured at fair value through profit or loss and other	493	425	355	918	763
Net interest income	1,713	1,388	1,665	3,101	3,436
Other net income from financial instruments measured at fair value through profit or loss	2,463	2,681	1,619	5,143	3,845
Fee and commission income	5,682	5,053	5,224	10,735	11,061
Fee and commission expense	(507)	(447)	(450)	(954)	(934)
Net fee and commission income	5,175	4,606	4,774	9,781	10,127
Other income	188	69	859	258	891
Total revenues	9,540	8,744	8,917	18,284	18,299
Negative goodwill	28,925			28,925
Credit loss expense / (release)	740	38	7	778	25
Personnel expenses	5,651	4,620	4,422	10,271	9,343
General and administrative expenses	1,968	2,065	1,370	4,033	2,578
Depreciation, amortization and impairment of non-financial assets	866	525	503	1,391	1,009
Operating expenses	8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax	29,239	1,495	2,615	30,735	5,344
Tax expense / (benefit)	361	459	497	820	1,082
Net profit / (loss)	28,878	1,037	2,118	29,915	4,262
Net profit / (loss) attributable to non-controlling interests	3	8	10	11	18
Net profit / (loss) attributable to shareholders	$ 28,875	$ 1,029	$ 2,108	$ 29,904	$ 4,244
Earnings per share
Basic	$ 9.37	$ 0.33	$ 0.64	$ 9.72	$ 1.27
Diluted	$ 8.99	$ 0.32	$ 0.61	$ 9.30	$ 1.22

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	$ 28,878	$ 1,037	$ 2,118	$ 29,915	$ 4,262
Financial assets measured at fair value through other comprehensive income
Reclassification of financial assets to Other financial assets measured at amortized cost	449
Total comprehensive income
Total other comprehensive income	(867)	796	(1,039)	(71)	(3,255)
Total other comprehensive income that may be reclassified to the income statement, net of tax	(397)	709	(1,396)	312	(4,093)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(470)	87	357	(383)	839
Total comprehensive income	28,011	1,833	1,079	29,844	1,008
Comprehensive income attributable to shareholders
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	28,875	1,029	2,108	29,904	4,244
Foreign currency translation
Foreign currency translation movements related to net assets of foreign operations, before tax	754	236	(1,030)	991	(1,512)
Effective portion of changes in fair value of hedging instruments designated as net investment hedges, before tax	(379)	(127)	443	(506)	660
Foreign currency translation differences on foreign operations reclassified to the income statement	(3)	(1)	8	(3)	8
Effective portion of changes in fair value of hedging instruments designated as net investment hedges reclassified to the income statement	(1)	(1)	(4)	(2)	(4)
Income tax relating to foreign currency translations, including the effect of net investment hedges	(4)	(2)	5	(5)	8
Subtotal foreign currency translation, net of tax	368	106	(577)	474	(840)
Financial assets measured at fair value through other comprehensive income
Net unrealized gains / (losses), before tax	0	2	(3)	2	(442)
Net realized (gains) / losses reclassified to the income statement from equity	0	0	0	0	0
Reclassification of financial assets to Other financial assets measured at amortized cost			449		449
Income tax relating to net unrealized gains / (losses)	0	0	(116)	0	(3)
Subtotal financial assets measured at fair value through other comprehensive income, net of tax	0	2	330	2	3
Cash flow hedges of interest rate risk
Effective portion of changes in fair value of derivative instruments designated as cash flow hedges, before tax	(1,314)	387	(1,298)	(928)	(3,763)
Net (gains) / losses reclassified to the income statement from equity	410	349	(149)	759	(386)
Income tax relating to cash flow hedges	130	(130)	276	0	794
Subtotal cash flow hedges, net of tax	(775)	606	(1,171)	(169)	(3,355)
Cost of hedging
Cost of hedging, before tax	11	(5)	21	6	98
Income tax relating to cost of hedging	0	0	0	0	0
Subtotal cost of hedging, net of tax	11	(5)	21	6	98
Defined benefit plans
Gains / (losses) on defined benefit plans, before tax	(17)	25	122	8	163
Income tax relating to defined benefit plans	(35)	6	(7)	(29)	(8)
Subtotal defined benefit plans, net of tax	(53)	31	115	(21)	155
Own credit on financial liabilities designated at fair value
Gains / (losses) from own credit on financial liabilities designated at fair value, before tax	(473)	69	296	(404)	719
Income tax relating to own credit on financial liabilities designated at fair value	60	(17)	(26)	43	(26)
Subtotal own credit on financial liabilities designated at fair value, net of tax	(413)	51	271	(362)	693
Total comprehensive income
Total other comprehensive income	(862)	791	(1,011)	(71)	(3,245)
Total other comprehensive income that may be reclassified to the income statement, net of tax	(397)	709	(1,396)	312	(4,093)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(466)	83	385	(383)	848
Total comprehensive income	28,013	1,820	1,097	29,833	999
Comprehensive income attributable to non-controlling interests
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	3	8	10	11	18
Total comprehensive income
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(5)	5	(28)	0	(10)
Total comprehensive income	$ (2)	$ 13	$ (17)	$ 11	$ 9

Consolidated Statement of Com_2

Consolidated Statement of Comprehensive Income (Parenthetical) $ in Millions	3 Months Ended
	Jun. 30, 2023 USD ($)
Statement Of Comprehensive Income [Line Items]
Reclassification of financial assets to Other financial assets measured at amortized cost	$ 449
Reclassification of financial assets to Other financial assets measured at amortized cost, net of tax	$ 333

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Assets
Cash and balances at central banks	$ 261,587	$ 144,183	$ 169,445
Amounts due from banks	24,392	14,901	14,792
Receivables from securities financing transactions measured at amortized cost	86,538	60,010	67,814
Cash collateral receivables on derivative instruments	54,314	32,726	35,032
Loans and advances to customers	651,770	390,130	387,220
Other financial assets measured at amortized cost	64,928	49,179	53,264
Total financial assets measured at amortized cost	1,143,528	691,130	727,568
Financial assets at fair value held for trading	151,098	117,757	107,866
of which: assets pledged as collateral that may be sold or repledged by counterparties	54,165	37,569	36,742
Derivative financial instruments	185,949	114,251	150,108
Brokerage receivables	21,537	21,025	17,576
Financial assets measured at fair value through other comprehensive income	2,217	2,241	2,239
Total financial assets measured at fair value through profit or loss	477,188	319,859	335,347
Investments in associates	2,691	1,114	1,101
Property, equipment and software	18,325	12,249	12,288
Goodwill and intangible assets	7,569	6,272	6,267
Deferred tax assets	10,342	9,310	9,389
Other non-financial assets	16,919	10,958	10,166
Financial assets at fair value not held for trading	118,605	66,826	59,796
Total assets	1,678,780	1,053,134	1,104,364
of which: Credit Suisse	598,304
Liabilities
Amounts due to banks	99,167	13,595	11,596
Payables from securities financing transactions measured at amortized cost	22,297	9,870	4,202
Cash collateral payables on derivative instruments	41,416	32,238	36,436
Customer deposits	712,546	505,581	525,051
Debt issued measured at amortized cost	230,857	116,312	114,621
Other financial liabilities measured at amortized cost	19,403	10,292	9,575
Total financial liabilities measured at amortized cost	1,125,687	687,889	701,481
Other financial liabilities designated at fair value	36,122	25,758	30,237
Financial liabilities at fair value held for trading	40,364	34,374	29,515
Derivative financial instruments	193,147	116,113	154,906
Brokerage payables designated at fair value	43,852	43,911	45,085
Debt issued designated at fair value	125,050	77,233	73,638
Provisions and contingent liabilities	14,929	3,937	3,243
Other non-financial liabilities	11,994	6,811	9,040
Debt instruments issued by the Credit Suisse Group and transferred to UBS Group AG as part of the acquisition.	52,900
Total liabilities	1,591,145	996,028	1,047,146
Total financial liabilities measured at fair value through profit or loss	438,534	297,390	333,381
of which: Credit Suisse	502,743
Equity
Share capital	346	304	304
Share premium	12,521	12,971	13,546
Treasury shares	(4,208)	(8,242)	(6,874)
Retained earnings	78,180	51,140	50,004
Other comprehensive income recognized directly in equity, net of tax	161	581	(103)
Equity attributable to shareholders	86,999	56,754	56,876
Equity attributable to non-controlling interests	636	352	342
Total equity	87,635	57,106	57,218
Total liabilities and equity	$ 1,678,780	$ 1,053,134	$ 1,104,364

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Share capital and share premium	Treasury shares	Retained earnings	Other comprehensive income recognized directly in equity, net of tax	of which: foreign currency translation	of which: cash flow hedges	Total equity attributable to shareholders	Non-controlling interests
Balance at Dec. 31, 2021		$ 16,250	$ (4,675)	$ 43,851	$ 5,236	$ 4,653	$ 628	$ 60,662
Acquisition of treasury shares			(3,684)					(3,684)
Delivery of treasury shares under share-based compensation plans		(742)	815					74
Other disposal of treasury shares		(3)	111					107
Cancellation of treasury shares related to the share repurchase program		(1,520)	3,022	(1,502)				0
Share-based compensation expensed in the income statement		384						384
Tax (expense) / benefit		7						7
Dividends		(834)		(834)				(1,668)
Equity classified as obligation to purchase own shares		(40)						(40)
Translation effects recognized directly in retained earnings				(13)	13		13	0
Share of changes in retained earnings of associates and joint ventures				0				0
New consolidations / (deconsolidations) and other increases / (decreases)		4		3	(3)			4
Total comprehensive income for the period	$ 1,008			5,092	(4,093)	(840)	(3,355)	999	$ 9
of which: net profit / (loss)	4,262			4,244				4,244	18
of which: OCI, net of tax	(3,255)			848	(4,093)	(840)	(3,355)	(3,245)
Balance at Jun. 30, 2022	57,184	13,506	(4,412)	46,598	1,152	3,813	(2,713)	56,845	339
Equity attributable to non-controlling interests	342
Balance at Dec. 31, 2022	57,218	13,850	(6,874)	50,004	(103)	4,128	(4,234)	56,876
Equity attributable to shareholders at the beginning of the period at Dec. 31, 2022	56,876
Total comprehensive income for the period	1,833							1,820	13
of which: net profit / (loss)	1,037							1,029	8
of which: OCI, net of tax	796							791
Equity attributable to shareholders at the end of the period at Mar. 31, 2023	56,754
Balance at Mar. 31, 2023	57,106
Balance at Dec. 31, 2022	57,218	13,850	(6,874)	50,004	(103)	4,128	(4,234)	56,876
Equity attributable to shareholders at the beginning of the period at Dec. 31, 2022	56,876
Impact of the settlement of pre-existing relationships			(61)					(61)
Acquisition of treasury shares			(2,318)					(2,318)
Delivery of treasury shares under share-based compensation plans		(798)	876					78
Other disposal of treasury shares		(1)	126					125
Cancellation of treasury shares related to the share repurchase program		(561)	1,115	(554)				0
Share-based compensation expensed in the income statement		445						445
Tax (expense) / benefit		5						5
Dividends		(839)		(839)				(1,679)
Equity classified as obligation to purchase own shares		(19)						(19)
Translation effects recognized directly in retained earnings				48	(48)		(48)	0
New consolidations / (deconsolidations) and other increases / (decreases)		2						2
Total comprehensive income for the period	29,844			29,521	312	474	(169)	29,833	11
of which: net profit / (loss)	29,915			29,904				29,904	11
of which: OCI, net of tax	(71)			(383)	312	474	(169)	(71)
Equity attributable to shareholders at the end of the period at Jun. 30, 2023	86,999
Balance at Jun. 30, 2023	87,635	12,867	(4,208)	78,180	161	4,602	(4,451)	86,999	636
Equity attributable to non-controlling interests	352
Balance at Mar. 31, 2023	57,106
Equity attributable to shareholders at the beginning of the period at Mar. 31, 2023	56,754
Total comprehensive income for the period	28,011							28,013	(2)
of which: net profit / (loss)	28,878							28,875	3
of which: OCI, net of tax	(867)							(862)
Equity attributable to shareholders at the end of the period at Jun. 30, 2023	86,999
Balance at Jun. 30, 2023	87,635	12,867	(4,208)	$ 78,180	$ 161	$ 4,602	$ (4,451)	86,999	$ 636
Purchase price consideration, before consideration of share-based compensation awards		619	$ 2,928					3,547
Impact of share-based compensation awards		$ 162						$ 162
Equity attributable to non-controlling interests	$ 636

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Parenthetical) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Jun. 30, 2023	Jun. 30, 2023
Ordinary cash dividends paid, ordinary shares per share	$ 0.55	$ 0.50
Maximum percentage of dividends that may be paid from capital contribution reserves				50%
Own shares purchased and cancelled as part of the share repurchase program				62,548,000
Minimum percentage of the total capital reduction amount exceeding the nominal value by which captal contribution reserves are reduced upon cancellation of the shares				50%
Increase of equity attributable to non-controlling interests due to the acquisition of Credit Suisse Group			$ 285

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flow from / (used in) operating activities
Net profit / (loss)	$ 29,915	$ 4,262
Non-cash items included in net profit and other adjustments:
Depreciation, amortization and impairment of non-financial assets	1,391	1,009
Credit loss expense / (release)	778	25
Share of net (profit) / loss of associates and joint ventures and impairment related to associates	(36)	(12)
Deferred tax expense / (benefit)	(35)	350
Net loss / (gain) from investing activities	(84)	(732)
Net loss / (gain) from financing activities	4,843	(14,379)
Negative goodwill	(28,925)
Other net adjustments	(1,559)	9,399
Net change in operating assets and liabilities:
Amounts due from banks and amounts due to banks	6,017	3,000
Securities financing transactions measured at amortized cost	13,428	10,833
Cash collateral on derivative instruments	(3,409)	(4,699)
Loans and advances to customers and customer deposits	1,772	(13,203)
Financial assets and liabilities at fair value held for trading and derivative financial instruments	(7,278)	13,104
Brokerage receivables and payables	(5,141)	8,239
Financial assets at fair value not held for trading and other financial assets and liabilities	6,015	1,706
Provisions and other non-financial assets and liabilities	898	125
Income taxes paid, net of refunds	(925)	(878)
Net cash flow from / (used in) operating activities	17,665	18,150
Cash flow from / (used in) investing activities
Purchase of subsidiaries, associates and intangible assets	1
Disposal of subsidiaries, associates and intangible assets	45	911
Purchase of property, equipment and software	(830)	(761)
Disposal of property, equipment and software	1	3
Purchase of financial assets measured at fair value through other comprehensive income	(2,444)	(2,821)
Disposal and redemption of financial assets measured at fair value through other comprehensive income	2,468	2,291
Purchase of debt securities measured at amortized cost	(7,541)	(8,167)
Disposal and redemption of debt securities measured at amortized cost	4,659	3,914
Net cash flow from / (used in) investing activities	104,869	(4,630)
Cash flow from / (used in) financing activities
Repayment of Swiss National Bank funding	(27,813)
Net issuance (repayment) of short-term debt measured at amortized cost	5,203	(10,440)
Net movements in treasury shares and own equity derivative activity	(2,136)	(3,521)
Distributions paid on UBS shares	(1,679)	(1,668)
Issuance of debt designated at fair value and long-term debt measured at amortized cost	51,420	48,460
Repayment of debt designated at fair value and long-term debt measured at amortized cost	(49,777)	(36,309)
Net cash flows from other financing activities	(274)	(352)
Net cash flow from / (used in) financing activities	(25,056)	(3,830)
Total cash flow
Cash and cash equivalents at the beginning of the period	195,321	207,875
of which: Credit Suisse	114,649
of which: cash and balances at central banks	261,504	190,244
of which: loans and advances to banks	21,996	15,786
of which: money market paper	12,259	1,880
Net cash flow from / (used in) operating, investing and financing activities	97,478	9,690
Effects of exchange rate differences on cash and cash equivalents	2,960	(9,656)
Cash and cash equivalents at the end of the period	295,759	207,909
Net cash flow from / (used in) operating activities includes:
Interest received in cash	17,243	6,088
Interest paid in cash	11,604	2,675
Dividends on equity investments, investment funds and associates received in cash	1,314	$ 1,059
Credit Suisse
Non-cash items included in net profit and other adjustments:
Negative goodwill	(28,925)
Cash flow from / (used in) investing activities
Cash and cash equivalents acquired on acquisition of Credit Suisse	$ 108,510

Consolidated Statement of Cas_2

Consolidated Statement of Cash Flows (Parenthetical) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Statement Of Cash Flows [Line Items]
Restricted cash and cash equivalents	$ 5,892	$ 4,434
Money market paper in financial assets measured at fair value through other comprehensive income	0	180
Money market paper in financial assets at fair value held for trading	2,386	58
Money market paper in financial assets at fair value not held for trading	9,270	1,516
Money market paper in other financial assets measured at amortized cost	603	127
Disposal of subsidiaries, associates and intangible assets	$ 45	$ 911

Basis of accounting

Basis of accounting	6 Months Ended
	Jun. 30, 2023
Disclosure Of Material Accounting Policy Information [Line Items]
Basis of preparation	Note 1 Basis of preparation The consolidated UBS or the Group) are prepared in accordance with International the International Accounting Standards statements are prepared in accordance with Interim Financial Reporting . In preparing been applied as in the 2022, except Suisse UBS Group AG’s report” sections of this report, including the disclosures in the “Acquisition report. In Group’s financial position, results of operations Preparation of these interim financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosures of contingent assets and liabilities. These estimates and assumptions are based on the best available information. Actual results in the future could differ from such estimates and differences may be material to the financial statements. Revisions to estimates, based on regular reviews, are recognized in the period in which they occur. For more information about areas of estimation uncertainty that are considered to require critical judgment, refer to this Note and Note 2, as well as “Note 1a Material accounting policies” in the “Consolidated financial statements” section of the Annual Report 2022. Incremental accounting policies related to acquisition of the Credit Suisse Group Business combinations UBS has determined that As per section of the Annual Report 2022, business this method, any excess of the acquisition-date amounts of the identifiable of the consideration date of the acquisition, with transaction costs Allowances and provisions for expected credit The Group’s material accounting policies in respect of allowances and provisions for expected credit losses are set out in “Note 1a Material accounting policies, item 2g Allowances “Consolidated financial statements” business combination IFRS 9 expected credit loss (ECL) the ECL requirements that are determined to be credit impaired are treated as purchased credit-impaired instruments, on Consistent with the requirements to the instruments and a maximum 12-month ECL date fair value. Significant increase in credit risk For the not 30 days past due on which the contractual payments have not Default and credit impairment For the purposes of days past which material payments acquisition date. Goodwill and other separately identifiable The Group’s material accounting policies in respect of the accounting accounting policies, 2022. Separately from were not previously recognized in the financial statements is recognized on a straight-line basis over their estimated useful life. These assets are tested for impairment at the appropriate cash-generating unit level. Negative identifiable statement on the acquisition date. › Refer to Note 2 for more information Contingent liabilities recognized in a business Contingent liabilities recognized in a are accordance with requirements for provisions as set out in IAS 37.

Changes in accounting policies,

Changes in accounting policies, comparability and adjustments	6 Months Ended
	Jun. 30, 2023
Changes In Accounting Policies Comparability And Adjustments [Line Items]
Changes in accounting policies, comparability and adjustments	IFRS 17, Insurance Contracts Effective Insurance , requirements contracts held. The adoption has had no material Amendments to IAS 12 , Income Taxes In May Income Taxes , whereby, assets (DTAs) Global Anti-Base Erosion the exception applies these financial statements and subsequent financial statements. Although countries are starting to implement the rules, the Group did not have any application of timing of that has not been specified. Other amendments to IFRS Effective significant effect on the Group.
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations	The amendments also introduced new top-up tax, which will first apply to the Group’s

Currency translation rates

Currency translation rates	6 Months Ended
	Jun. 30, 2023
Foreign Exchange Rates [Line Items]
Currency translation rates	Currency translation rates The operations with a functional currency other Closing exchange rate Average rate 1 As of For the quarter ended Year-to-date 30.6.23 31.3.23 31.12.22 30.6.22 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 1 CHF 1.12 1.09 1.08 1.05 1.11 1.08 1.04 1.11 1.06 1 EUR 1.09 1.08 1.07 1.05 1.09 1.08 1.06 1.09 1.09 1 GBP 1.27 1.23 1.21 1.22 1.27 1.22 1.25 1.24 1.29 100 JPY 0.69 0.75 0.76 0.74 0.71 0.75 0.76 0.73 0.80 1 Monthly income statement items of operations with a functional currency other than three month-end rates, weighted according to the income and expense volumes of all operations of the Group with the same functional currency for each month. Accordingly, the weighted average rates for the second quarter of 2023 and year-to-date June 2023 consider income and from the weighted average rates for the Group.

Accounting for the acquisition

Accounting for the acquisition of Credit Suisse Group	6 Months Ended
	Jun. 30, 2023
Disclosure Of Business Combinations [Line items]
Accounting for the acquisition of Credit Suisse Group	Note 2 Acquisition of the Credit Suisse Group For information about report, acquisition accounted for by applying the acquisition method As part converted from US GAAP to IFRS. The most material conversion impact arose from the different derivative netting rules, resulting in an increase in Total 70 bn, with no impact on Equity. arose from the losses. In addition, the financial assets the adjustments of USD 2.3 bn recognized on and fair value 12.4 bn recognized on sheet commitments and Credit Suisse from amortized cost generally accrete to Total revenues are continued to be held. Adjustments have also been made to 0.9 bn and 4.5 bn Furthermore, Credit Suisse Group goodwill has been derecognized, the fair value of internally generated software has been marked down considering held and leased has been revalued. Intangible assets Included in Intangible assets 0.9 bn for which recognized in using comparing alternative funds represents the present value of the deposits. The customer (an existing assumptions consistent and projected rates. Also included in Intangible assets 0.4 bn, which represent the right to perform specified The MSRs were valued using a discounted cash Additional provisions and contingent liabilities Included Provisions 4.5 bn liabilities, 1.5 bn 1.3 bn previously recorded by the Credit Suisse Group, and USD 3 bn contingent liabilities for certain potential obligations in respect actual development recognized USD 4.5 bn for fair value adjustments IFRS as a 4.3 bn is included Provisions and USD 0.2 bn is included as fair value loan commitments Derivative financial instruments The following table summarizes the determination The USD 28.9 bn. The acquired determined by negative Negative , Business . negative goodwill on the acquisition of the Credit Suisse The provisional other management’s finalization of its acquisition date fair value estimates, year from the acquisition date. since the acquisition existing on the date of the acquisition is obtained within the measurement period retrospectively. From the date 1.2 bn of net and an overall 1.2 bn to the net estimated as USD 24.0 bn and USD 0.9 bn, respectively, in on the actual results), of conversion to Business Combinations . The recognized from 28.9 bn, and Credit Suisse Group in capital notes of 16.4 bn, a goodwill of USD 1.4 bn and a gain from the reversal 0.4 bn. These items are considered non-recurring revenues and net the transaction occurred The pro forma net on reorganizations that restructuring actions, associated with combining Segment reporting An overview in “Note Credit Swiss Bank (Credit Suisse), Asset Management (Credit Suisse), the Investment Bank (Credit Suisse) Release Unit certain allocated. Consequently, classifications period as defined in IFRS 3. Pre-existing relationships As of 12 June 2023, UBS had the following pre-existing Such balances are eliminated in the consolidated Retention awards of 0.5 bn were offered to awards were contingent on 50 % in cash (in general vesting 60 days from the completion of the 50 % in shares (in general completion of with USD 84 m in the second quarter of 2023. Measure The Credit Suisse Group ordinary shares outstanding, 12 June 2023 Number of shares (m) 3,949 Exchange ratio (1 to 22.48) Ratio 0.04 UBS ordinary shares Number of shares (m) 176 UBS ordinary share price CHF 18.35 Purchase price consideration, before consideration of share-based compensation CHF m 3,223 Purchase price consideration, before consideration of share-based compensation awards 1 USD m 3,547 Impact of share-based compensation awards 2 USD m 162 Purchase price consideration, after consideration of share-based compensation awards USD m 3,710 Settlement of pre-existing relationships USD m 135 Provisional purchase price consideration, after consideration of pre-existing relationships USD m 3,845 Net cash and cash equivalents acquired with the Credit Suisse USD m 108,510 of which: cash and balances at central banks USD m 93,012 of which: amounts due from banks USD m 12,601 of which: money market paper USD m 2,897 1 The purchase weighted average cost USD 3.7 bn, based on the UBS on the date of acquisition. USD m Acquisition date value Purchase price consideration, after consideration of share-based compensation awards 3,710 The Credit Suisse Group net assets at fair value Assets Cash and balances at central banks 93,012 Amounts due from banks 13,590 Receivables from securities financing transactions 26,194 Cash collateral receivables on derivative instruments 20,878 Loans and advances to customers 261,839 Other financial assets measured at amortized cost 13,440 Total financial assets measured at amortized cost 1 428,954 Financial assets at fair value held for trading 35,046 Derivative financial instruments 62,162 Brokerage receivables 366 Financial assets at fair value not held for trading 61,305 Total financial assets measured at fair value through profit or loss 158,879 Financial assets measured at fair value through other comprehensive income 1 0 Investments in associates 1,657 Property, equipment and software 6,055 Intangible assets 1,287 Deferred tax assets 942 Other non-financial assets 6,892 Total assets 604,667 Liabilities Amounts due to banks 107,617 Payables from securities financing transactions 11,911 Cash collateral payables on derivative instruments 10,939 Customer deposits 183,119 Debt issued measured at amortized cost 110,491 Other financial liabilities measured at amortized cost 7,992 Total financial liabilities measured at amortized cost 432,070 Financial liabilities at fair value held for trading 5,711 Derivative financial instruments 66,091 Brokerage payables designated at fair value 316 Debt issued designated at fair value 44,909 Other financial liabilities designated at fair value 7,574 Total financial liabilities measured at fair value through profit or loss 124,601 Provisions and contingent liabilities 11,052 Other non-financial liabilities 3,888 Total liabilities 571,611 Non-controlling interests (285) Fair value of net assets acquired 32,771 Settlement of pre-existing relationships 135 Provisional negative goodwill resulting from the acquisition 28,925 1 Refer to Note 8 for information about credit quality of financial assets, including purchased credit-impaired USD m Cash collateral receivables on derivative instruments 7 Derivative financial instruments 1,476 Debt instruments issued by the Credit Suisse Group and held 98 Total assets 1,581 Cash collateral payables on derivative instruments 572 Derivative financial instruments 813 Total liabilities 1,385 Treasury shares (61) Total equity (61) Total net pre-existing relationships 135

Segment reporting

Segment reporting	6 Months Ended
	Jun. 30, 2023
Disclosure Of Operating Segments [Line Items]
Disclosure Of Entitys Reportable Segments Explanatory	Note 3 Reconciliation of segment assets to UBS Group total assets – As at 30 June 2023 and as at 31 December 2022 USD m 30.6.23 31.12.22 UBS business divisions and Group Functions (IFRS) 1,142,419 1,104,364 Global Wealth Management 375,118 388,530 Personal & Corporate Banking 241,539 235,226 Asset Management 19,083 17,348 Investment Bank 363,004 391,320 Group Functions 143,676 71,940 Credit Suisse business divisions and Corporate Center (US GAAP) 544,367 Wealth Management 106,729 Swiss Bank 211,218 Asset Management 1,716 Investment Bank 96,575 Capital Release Unit 74,843 Corporate Center 53,286 Reconciliation from US GAAP to IFRS for Credit Suisse business divisions 56,125 of which: conversion from US GAAP to IFRS for derivative netting 69,705 of which: IFRS 3 PPA fair value adjustments on financial assets measured at amortized (8,428) of which: IFRS 3 PPA adjustments to other assets 1,972 UBS vs Credit Suisse eliminations (64,132) UBS Group total assets (IFRS) 1,678,780 1,104,364 1 Represents components of the IFRS 3 purchase price allocation adjustments. As Group, which are managed and reported on a pre-tax basis. Credit Suisse’s business is organized globally into five reporting segments Suisse), (Credit Management, Personal & Corporate Banking, and we will separately report Group Items. › Refer to the “Consolidated financial statements” section of the Annual Report 2022 for more information about UBS’s business divisions and Group Functions The information provided the 30 June Business , acquisition of the Credit Suisse Group by UBS, certain effects reporting of Suisse business already provisions, software and goodwill impairment. A standards (IFRS) for the Credit Suisse business Information for the UBS business divisions Income statement Reconciliation of aggregated segment results for UBS and Credit Suisse to UBS Group result – for the six month period ended 30 June 2023 USD m UBS business divisions and Group Functions (IFRS) Credit Suisse business divisions and Corporate Center (US GAAP, 1 Reconciliation from US GAAP to IFRS for Credit Suisse business divisions and Corporate Center Negative goodwill from the acquisition of Credit Suisse (IFRS) UBS Group (IFRS) For the six months ended 30 June 2023 Total revenues 17,128 743 413 18,284 Negative goodwill 28,925 28,925 Credit loss expense / (release) 54 101 623 778 Operating expenses 14,055 1,807 (166) 15,696 Operating profit / (loss) before tax 3,019 (1,165) (44) 28,925 30,735 Tax expense / (benefit) 820 Net profit / (loss) 29,915 1 Represents the Credit Suisse divisions and Corporate Center has been adjusted to remove effects that overlap with amounts already accounted for as part of the acquisition, e.g., aligning fair value methodologies, changes in litigation provisions, software and goodwill impairment. UBS business divisions and Group Functions (IFRS) – For the six month period ended 30 June 2023 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Group Functions Total For the six months ended 30 June 2023 Total revenues 9,528 2,681 1,001 4,241 (323) 17,128 Credit loss expense / (release) 20 26 0 8 0 54 Operating expenses 7,182 1,376 818 3,618 1,062 14,055 Operating profit / (loss) before tax 2,325 1,279 184 615 (1,385) 3,019 Tax expense / (benefit) 807 Net profit / (loss) 2,212 Credit Suisse business divisions and Corporate Center (US GAAP, 1 USD m Wealth Management Swiss Bank Asset Management Investment Bank Capital Release Unit Corporate Center Total For the month ended 30 June 2023 Total revenues 323 339 91 102 28 (140) 743 Credit loss expense / (release) 7 67 2 (3) 28 0 101 Operating expenses 427 264 103 715 198 100 1,807 Operating profit / (loss) before tax (111) 8 (14) (610) (198) (240) (1,165) 1 Represents the Credit Suisse divisions and Corporate Center has been adjusted to remove effects that overlap with amounts already accounted for as part of the acquisition, e.g., aligning fair value methodologies, changes in litigation provisions, software and goodwill impairment. Breakdown of reconciling items from US GAAP to IFRS for Credit Suisse business divisions and Corporate Center – For the month ended 30 June 2023 USD m Conversion from US GAAP to IFRS (excluding PPA accretion) of which: ECL adjustment of which: Share- based compensation other Accretion of Purchase Price Allocation (PPA) adjustments Total For the month ended 30 June 2023 Total revenues 44 44 369 413 Credit loss expense / (release) 623 623 0 623 Operating expenses (166) (130) (36) 0 (166) Operating profit / (loss) before tax (413) (623) 130 80 369 (44) Reconciliation from segment results to UBS Group result – For the six month period ended 30 June 2022 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Group Functions UBS For the six months ended 30 June 2022 1 Total revenues 9,581 2,144 1,950 5,003 (379) 18,299 Credit loss expense / (release) (10) 57 0 (24) 2 25 Operating expenses 7,124 1,246 817 3,688 54 12,929 Operating profit / (loss) before tax 2,467 841 1,133 1,339 (436) 5,344 Tax expense / (benefit) 1,082 Net profit / (loss) 4,262 1 Refer to “Note 2 Segment reporting” in the “Consolidated financial statements” section of the Annual Report 2022 for more information about Total assets

Net interest income

Net interest income	6 Months Ended
	Jun. 30, 2023
Disclosure Net Interest Income [Line Items]
Net interest income	Note 4 For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Interest income from loans and deposits 1 6,247 4,106 1,886 10,353 3,546 Interest income from securities financing transactions measured 2 1,004 766 209 1,769 327 Interest income from other financial instruments measured 282 259 118 540 191 Interest income from debt instruments measured at fair 26 23 6 48 47 Interest income from derivative instruments designated as cash (457) (376) 160 (833) 413 Total interest income from financial instruments measured at amortized cost and fair income 7,101 4,777 2,380 11,878 4,525 Interest expense on loans and deposits 3 3,024 1,994 262 5,018 401 Interest expense on securities financing transactions measured 4 616 365 288 981 512 Interest expense on debt issued 2,205 1,429 498 3,635 893 Interest expense on lease liabilities 35 26 22 61 45 Total interest expense from financial instruments measured at amortized cost 5,880 3,814 1,070 9,695 1,852 Total net interest income from financial instruments measured at amortized cost and fair income 1,221 962 1,310 2,183 2,673 Net interest income from financial instruments measured at fair value through profit 493 425 355 918 763 Total net interest income 1,713 1,388 1,665 3,101 3,436 1 Consists of interest income from cash and balances at central banks, due to banks, payables from securities financing transactions. cash and balances at central banks, loans and interest, including fees, on receivables from securities financing transactions.

Net fee and commission income

Net fee and commission income	6 Months Ended
	Jun. 30, 2023
Net fee And Commission Income [Line Items]
Net fee and commission income	Note 5 For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Underwriting fees 153 127 111 280 283 M&A and corporate finance fees 199 178 220 378 456 Brokerage fees 930 880 869 1,809 1,946 Investment fund fees 1,196 1,178 1,233 2,374 2,620 Portfolio management and related services 2,485 2,210 2,298 4,695 4,761 Other 719 479 492 1,199 993 Total fee and commission income 1 5,682 5,053 5,224 10,735 11,061 of which: recurring 3,808 3,413 3,593 7,221 7,453 of which: transaction-based 1,864 1,616 1,621 3,480 3,579 of which: performance-based 10 24 10 34 29 Fee and commission expense 507 447 450 954 934 Net fee and commission income 5,175 4,606 4,774 9,781 10,127 1 Reflects third-party fee and commission income 3,134 m for Global Wealth Management (first quarter of 3,145 m; second quarter of 2022: USD 3,281 m), USD 465 m for Personal & Corporate Banking 449 m; second quarter of 2022: USD 421 m), USD 673 m for Asset Management (first quarter 687 m; second quarter of 2022: USD 720 m), USD 731 m for the Investment Bank (first 770 m; second quarter of 2022: 801 m) and USD 4 m for Group Functions (first 3 m; second quarter of 2022: USD 1 m). Also includes third-party fee and commission income for the second quarter of 2023 from Credit Suisse of USD 675 m.

Personnel expenses

Personnel expenses	6 Months Ended
	Jun. 30, 2023
Personnel Expenses [Line Items]
Personnel expenses	Note 6 For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Salaries and variable compensation 1 4,804 3,885 3,786 8,689 7,954 of which: variable compensation – financial advisors 2 1,110 1,111 1,122 2,222 2,342 Contractors 77 70 80 147 163 Social security 294 279 218 572 503 Post-employment benefit plans 261 236 199 497 448 Other personnel expenses 215 151 139 366 274 Total personnel expenses 5,651 4,620 4,422 10,271 9,343 1 Includes role-based compensation commitments with financial advisors entered into at the time of recruitment that are subject to vesting requirements.

General and administrative expe

General and administrative expenses	6 Months Ended
	Jun. 30, 2023
General And Administrative Expenses [Line Items]
General and administrative expenses	Note 7 For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Outsourcing costs 311 248 227 559 454 Technology costs 414 322 286 735 576 Consulting, legal and audit fees 351 181 144 532 272 Real estate and logistics costs 207 142 152 349 298 Market data services 151 113 101 264 207 Marketing and communication 89 52 61 140 101 Travel and entertainment 73 54 46 126 67 Litigation, regulatory and similar matters 1 69 721 221 790 278 Other 304 232 133 536 325 Total general and administrative expenses 1,968 2,065 1,370 4,033 2,578 1 Reflects the net increase in provisions for litigation, regulatory and similar matters recognized in the income statement. Refer to Note 15b for more information.

Expected credit loss measuremen

Expected credit loss measurement	6 Months Ended
	Jun. 30, 2023
Disclosure Of Provision Matrix [Line Items]
Expected credit loss measurement	Note 8 a) Credit loss expense / release Total net credit loss expenses in the second 740 m, reflecting USD 644 m net credit loss expenses related 77 m net USD 19 m related to purchased credit-impaired (PCI) Stage 1 and 2 42 m for expenses of 27 m from and 5 m across Management. In addition, USD 654 m net expenses and provisions for is respective assets non-credit-impaired Credit Suisse AG positions are classified UBS compared to the acquisition valued as part of the purchase price allocation. Stage 3 77 m, 21 m Banking, which were primarily due to a single commodity trade finance client (USD 11 m), as well as net expenses on 51 m counterparties that Release Unit 44 m, as 19 m on already defaulted at the acquisition date. b) Changes to ECL models, scenarios, scenario Scenarios and scenario weights The expected reviewed in light of of governance meetings, with input and feedback from and regions. ECLs same scenario and scenario weight inputs as The baseline scenario was updated with the latest macroeconomic forecasts as of 30 June 2023. The assumptions on 2023, in the used in the although the baseline is slightly more pessimistic At the beginning of the second and at the developments suggest mild debt the scenario is in affected, and central banks are assumed to ease The stagflationary market weights applied. UBS kept scenario weights in 15 % weight assigned to the mild debt crisis scenario instead of the UBS applied the same scenarios and scenario Post-model adjustments Total 1,199 m as of model adjustments 131 m (31 March 128 m), as remained portfolio include post-model adjustments 102 m, mostly related to the further calibration of model in certain segments with UBS’s model outputs. c) ECL-relevant balance sheet and off-balance The following tables subject exposure to credit risk, taking through other comprehensive the allowance Instead, the In addition to recognized financial assets, certain off-balance sheet financial instruments and other credit lines are also subject to ECL. based on the maximum contractual amounts. Loans and advances to customers of USD 651,770 m include USD 262,025 m from Credit Suisse AG. Breakout: Loans and advances to customers Credit 1.1 bn acquisition date. UBS value as at were recognized for them on that date. The table below portfolios (i.e., Loans and and ) and exposures. Cash and balances at , Loans and advances , Receivables from securities transactions , Cash Financial through other comprehensive income ECL coverage ratios are calculated by dividing ECL related exposures. Credit loss expense / (release) USD m Stages 1 and 2 Stage 3 Purchased credit-impaired (PCI) Total For the quarter ended 30.6.23 Global Wealth Management (4) 9 5 Personal & Corporate Banking (11) 21 10 Asset Management 0 0 0 Investment Bank 5 (4) 1 Group Functions 0 0 0 Subtotal UBS (10) 26 16 Wealth Management (Credit Suisse) 143 0 7 149 Swiss Bank (Credit Suisse) 217 7 0 224 Asset Management (Credit Suisse) 1 0 0 1 Investment Bank (Credit Suisse) 189 0 12 200 Capital Release Unit (Credit Suisse) 104 44 0 148 Corporate Center (Credit Suisse) 2 0 0 2 Subtotal Credit Suisse 654 51 19 724 1 Total 644 77 19 740 For the quarter ended 31.3.23 Global Wealth Management 15 0 15 Personal & Corporate Banking 15 0 16 Asset Management 0 0 0 Investment Bank (5) 12 7 Group Functions 0 0 0 Total 26 12 38 For the quarter ended 30.6.22 Global Wealth Management (8) 6 (3) Personal & Corporate Banking 26 8 35 Asset Management 0 0 0 Investment Bank (2) (26) (28) Group Functions 0 2 2 Total 16 (9) 7 1 Includes credit loss expense of USD 101 m included into the segment reporting for Credit Suisse business divisions and Corporate Center (US GAAP, 623 m credit loss expense to reconcile Credit Suisse business divisions and Corporate Center to IFRS. Please refer also to Note 3. Comparison of shock factors Baseline Key parameters 2022 2023 2024 Real GDP growth (annual percentage change) US 2.1 1.4 0.1 Eurozone 3.5 0.8 1.0 Switzerland 2.1 0.9 1.3 Unemployment rate (%, annual average) US 3.6 3.7 5.1 Eurozone 6.7 6.7 6.9 Switzerland 2.2 2.2 2.5 Fixed income: 10-year government bonds (%, Q4) USD 3.9 3.7 3.6 EUR 2.6 2.3 2.2 CHF 1.6 1.0 0.9 Real estate (annual percentage change, Q4) US 7.4 (1.9) 2.1 Eurozone 2.8 (1.2) 1.8 Switzerland 3.9 (0.5) (1.0) Economic scenarios and weights applied Assigned weights in % ECL scenario 30.6.23 31.3.23 30.6.22 Asset price inflation 0.0 0.0 0.0 Baseline 60.0 60.0 55.0 Severe Russia–Ukraine conflict scenario – – 25.0 Mild debt crisis 15.0 – – Stagflationary geopolitical crisis 25.0 25.0 – Global crisis – 15.0 20.0 USD m 30.6.23 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Cash and balances at central banks 261,587 261,475 32 0 79 (10) 0 (10) 0 0 Loans and advances to banks 24,392 24,208 157 0 27 (11) (10) (1) 0 0 Receivables from securities financing transactions measured at amortized cost 86,538 86,538 0 0 0 (1) (1) 0 0 0 Cash collateral receivables on derivative instruments 54,314 54,314 0 0 0 0 0 0 0 0 Loans and advances to customers 651,770 630,086 17,204 1,850 2,630 (1,369) (613) (173) (556) (28) of which: Private clients with mortgages 255,322 244,894 9,358 783 287 (173) (61) (87) (23) (2) of which: Real estate financing 92,890 88,669 4,088 10 122 (63) (41) (23) 0 0 of which: Large corporate clients 32,162 28,883 1,292 387 1,601 (417) (207) (29) (157) (24) of which: SME clients 29,595 27,649 1,293 436 218 (314) (91) (21) (203) 0 of which: Lombard 168,713 168,596 0 42 75 (32) (15) 0 (17) 0 of which: Credit cards 1,939 1,502 403 34 0 (39) (8) (11) (21) 0 of which: Commodity trade finance 4,950 4,917 0 15 19 (124) (20) 0 (104) 0 of which: Ship / aircraft financing 9,478 9,234 166 22 56 (69) (67) (2) 0 0 of which: Consumer financing 3,140 3,056 0 0 84 (30) (30) 0 0 0 Other financial assets measured at amortized cost 64,928 64,364 377 153 35 (109) (37) (7) (62) (3) of which: Loans to financial advisors 2,588 2,287 174 126 0 (55) (6) (2) (47) 0 Total financial assets measured at amortized cost 1,143,528 1,120,985 17,770 2,003 2,770 (1,501) (662) (190) (618) (31) Financial assets measured at fair value through other comprehensive income 2,217 2,217 0 0 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 1,145,746 1,123,203 17,770 2,003 2,770 (1,501) (662) (190) (618) (31) of which: Credit Suisse 2 431,559 428,684 0 104 2,770 (540) (457) 0 (52) (31) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Guarantees 38,463 37,345 921 118 79 (66) (40) (7) (17) (1) of which: Large corporate clients 8,358 7,553 690 79 36 (19) (16) (2) 0 0 of which: SME clients 4,170 3,928 167 38 37 (20) (10) (1) (9) 2 of which: Financial intermediaries and hedge funds 12,874 12,859 15 0 0 (11) (8) (3) 0 0 of which: Lombard 4,752 4,752 0 1 0 (1) 0 0 (1) 0 of which: Commodity trade finance 2,200 2,200 0 0 0 (1) (1) 0 0 0 Irrevocable loan commitments 124,281 121,789 2,076 78 338 (225) (186) (38) (2) 0 of which: Large corporate clients 77,160 75,044 1,731 52 333 (198) (165) (31) (2) 0 Forward starting reverse repurchase and securities borrowing agreements 4,972 4,972 0 0 0 0 0 0 0 0 Unconditionally revocable loan commitments 168,556 166,754 1,739 63 0 (74) (65) (9) 0 0 of which: Real estate financing 17,107 16,850 258 0 0 (12) (12) 0 0 0 of which: Large corporate clients 4,790 4,624 158 7 0 (6) (3) (3) 0 0 of which: SME clients 24,601 24,381 179 40 0 (42) (39) (3) 0 0 of which: Lombard 82,491 82,491 0 1 0 0 0 0 0 0 of which: Credit cards 9,762 9,274 484 4 0 (7) (6) (2) 0 0 Irrevocable committed prolongation of existing loans 4,362 4,353 7 2 0 (3) (2) 0 0 0 Total off-balance sheet financial instruments and other credit lines 340,634 335,213 4,743 261 417 (367) (293) (54) (19) (1) Total allowances and provisions (1,868) (955) (244) (637) (32) of which: Credit Suisse 2 225,021 224,604 0 0 417 (731) (648) 0 (52) (32) 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective ECL Credit Suisse Group. USD m 31.3.23 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Cash and balances at central banks 144,183 144,144 39 0 (12) 0 (12) 0 Loans and advances to banks 14,901 14,857 45 0 (6) (5) 0 0 Receivables from securities financing transactions 60,010 60,010 0 0 (2) (2) 0 0 Cash collateral receivables on derivative instruments 32,726 32,726 0 0 0 0 0 0 Loans and advances to customers 390,130 371,966 16,573 1,591 (804) (152) (180) (472) of which: Private clients with mortgages 159,409 149,701 8,999 709 (171) (43) (103) (25) of which: Real estate financing 48,672 45,159 3,504 8 (42) (18) (24) 0 of which: Large corporate clients 12,943 11,216 1,408 320 (139) (20) (16) (102) of which: SME clients 13,610 11,781 1,437 392 (243) (29) (25) (189) of which: Lombard 128,960 128,903 0 57 (26) (9) 0 (17) of which: Credit cards 1,831 1,418 381 32 (37) (8) (10) (20) of which: Commodity trade finance 3,053 3,022 20 10 (96) (5) 0 (91) Other financial assets measured at amortized cost 49,179 48,661 372 146 (84) (17) (6) (61) of which: Loans to financial advisors 2,571 2,323 121 127 (54) (6) (2) (46) Total financial assets measured at amortized cost 691,130 672,365 17,028 1,737 (908) (176) (198) (534) Financial assets measured at fair value through other comprehensive income 2,241 2,241 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 693,370 674,606 17,028 1,737 (908) (176) (198) (534) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Guarantees 22,670 21,670 887 113 (54) (13) (8) (33) of which: Large corporate clients 3,476 2,733 668 75 (19) (2) (3) (14) of which: SME clients 1,368 1,197 133 38 (11) (1) (1) (9) of which: Financial intermediaries and hedge funds 13,076 13,037 38 0 (11) (8) (4) 0 of which: Lombard 2,171 2,170 0 1 (1) 0 0 (1) of which: Commodity trade finance 1,815 1,815 0 0 (1) (1) 0 0 Irrevocable loan commitments 39,775 37,261 2,400 114 (113) (57) (56) 0 of which: Large corporate clients 23,294 21,263 1,948 83 (95) (47) (49) 0 Forward starting reverse repurchase and securities borrowing agreements 4,748 4,748 0 0 0 0 0 0 Unconditionally revocable loan commitments 41,071 39,307 1,724 40 (44) (36) (8) 0 of which: Real estate financing 8,226 8,037 188 0 (6) (6) 0 0 of which: Large corporate clients 4,496 4,284 205 7 (5) (3) (2) 0 of which: SME clients 4,898 4,656 214 28 (21) (18) (3) 0 of which: Lombard 8,166 8,165 0 1 0 0 0 0 of which: Credit cards 9,567 9,078 486 3 (7) (5) (2) 0 of which: Commodity trade finance 370 370 0 0 0 0 0 0 Irrevocable committed prolongation of existing loans 4,161 4,126 33 2 (3) (3) 0 0 Total off-balance sheet financial instruments and other credit lines 112,425 107,112 5,044 269 (214) (108) (72) (33) Total allowances and provisions (1,121) (284) (271) (567) 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective USD m 31.12.22 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Cash and balances at central banks 169,445 169,402 44 0 (12) 0 (12) 0 Loans and advances to banks 14,792 14,792 1 0 (6) (5) (1) 0 Receivables from securities financing transactions 67,814 67,814 0 0 (2) (2) 0 0 Cash collateral receivables on derivative instruments 35,032 35,032 0 0 0 0 0 0 Loans and advances to customers 387,220 370,095 15,587 1,538 (783) (129) (180) (474) of which: Private clients with mortgages 156,930 147,651 8,579 699 (161) (27) (107) (28) of which: Real estate financing 46,470 43,112 3,349 9 (41) (17) (23) 0 of which: Large corporate clients 12,226 10,733 1,189 303 (130) (24) (14) (92) of which: SME clients 13,903 12,211 1,342 351 (251) (26) (22) (203) of which: Lombard 132,287 132,196 0 91 (26) (9) 0 (17) of which: Credit cards 1,834 1,420 382 31 (36) (7) (10) (19) of which: Commodity trade finance 3,272 3,261 0 11 (96) (6) 0 (90) Other financial assets measured at amortized cost 2 53,264 52,704 413 147 (86) (17) (6) (63) of which: Loans to financial advisors 2,611 2,357 128 126 (59) (7) (2) (51) Total financial assets measured at amortized cost 727,568 709,839 16,044 1,685 (889) (154) (199) (537) Financial assets measured at fair value through other comprehensive income 2 2,239 2,239 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 729,807 712,078 16,044 1,685 (889) (154) (199) (537) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Guarantees 22,167 19,805 2,254 108 (48) (13) (9) (26) of which: Large corporate clients 3,663 2,883 721 58 (26) (2) (3) (21) of which: SME clients 1,337 1,124 164 49 (5) (1) (1) (3) of which: Financial intermediaries and hedge funds 11,833 10,513 1,320 0 (12) (8) (4) 0 of which: Lombard 2,376 2,376 0 1 (1) 0 0 (1) of which: Commodity trade finance 2,121 2,121 0 0 (1) (1) 0 0 Irrevocable loan commitments 39,996 37,531 2,341 124 (111) (59) (52) 0 of which: Large corporate clients 23,611 21,488 2,024 99 (93) (49) (45) 0 Forward starting reverse repurchase and securities borrowing agreements 3,801 3,801 0 0 0 0 0 0 Unconditionally revocable loan commitments 41,390 39,521 1,833 36 (40) (32) (8) 0 of which: Real estate financing 8,711 8,528 183 0 (6) (6) 0 0 of which: Large corporate clients 4,578 4,304 268 5 (4) (1) (2) 0 of which: SME clients 4,723 4,442 256 26 (19) (16) (3) 0 of which: Lombard 7,855 7,854 0 1 0 0 0 0 of which: Credit cards 9,390 8,900 487 3 (7) (5) (2) 0 of which: Commodity trade finance 327 327 0 0 0 0 0 0 Irrevocable committed prolongation of existing loans 4,696 4,600 94 2 (2) (2) 0 0 Total off-balance sheet financial instruments and other credit lines 112,050 105,258 6,522 270 (201) (106) (69) (26) Total allowances and provisions (1,091) (259) (267) (564) 1 The carrying amount of financial assets Financial assets measured at fair value through other comprehensive income was reclassified to Other financial assets measured USD m 30.6.23 Carrying amount 1 ECL allowances Loans and advances to customers Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Loans and advances to customers 262,025 259,291 0 104 2,630 (511) (431) 0 (52) (28) of which: Private clients with mortgages 91,763 91,450 0 25 287 (18) (17) 0 0 (2) of which: Real estate financing 42,835 42,710 0 4 122 (20) (20) 0 0 0 of which: Large corporate clients 18,718 17,090 0 27 1,601 (239) (170) 0 (44) (24) of which: SME clients 17,114 16,873 0 23 218 (59) (59) 0 0 0 of which: Lombard 44,202 44,127 0 0 75 (6) (6) 0 0 0 of which: Commodity trade finance 2,757 2,738 0 0 19 (14) (14) 0 0 0 of which: Financial intermediaries and hedge funds 18,910 18,904 0 5 2 (34) (34) 0 0 0 of which: Sovereigns and public non-profit organizations 1,153 1,152 0 0 1 (4) (4) 0 0 0 of which: Ship / aircraft financing 8,033 7,977 0 0 56 (64) (64) 0 0 0 of which: Consumer financing 3,140 3,056 0 0 84 (30) (30) 0 0 0 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective Coverage ratios for core loan portfolio 30.6.23 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 1&2 Stage 3 PCI Private clients with mortgages 255,495 244,955 9,445 806 289 7 2 92 6 291 53 Real estate financing 92,953 88,710 4,111 11 122 7 5 55 7 71 0 Total real estate lending 348,448 333,665 13,556 817 410 7 3 80 6 288 36 Large corporate clients 32,579 29,090 1,320 544 1,625 128 71 217 78 2,894 148 SME clients 29,909 27,740 1,313 639 217 105 33 157 38 3,180 0 Total corporate lending 62,488 56,830 2,634 1,183 1,841 117 52 187 58 3,049 126 Lombard 168,745 168,611 0 59 75 2 1 0 1 2,872 24 Credit cards 1,978 1,510 413 55 0 199 53 255 97 3,821 0 Commodity trade finance 5,074 4,937 0 118 19 244 41 351 41 8,769 5 Ship / aircraft financing 9,542 9,298 166 22 56 72 72 111 73 0 1 Consumer financing 3,170 3,086 0 0 84 96 98 0 98 222 32 Other loans and advances to customers 55,139 54,019 773 174 173 21 14 47 15 1,740 156 Loans to financial advisors 2,643 2,293 177 173 0 208 24 140 33 2,707 0 Total other lending 246,291 243,754 1,529 602 406 19 9 121 10 3,636 78 Total 1 657,227 634,249 17,719 2,602 2,658 22 10 99 12 2,318 105 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 1&2 Stage 3 PCI Private clients with mortgages 9,284 8,950 324 11 0 4 3 22 4 60 0 Real estate financing 18,031 17,751 280 0 0 7 7 0 7 0 0 Total real estate lending 27,315 26,701 603 11 0 6 6 0 6 60 0 Large corporate clients 90,393 87,307 2,580 138 369 25 21 141 25 132 5 SME clients 32,494 31,955 400 95 43 23 18 257 21 994 0 Total corporate lending 122,887 119,262 2,980 233 412 24 20 156 24 482 0 Lombard 91,235 91,234 0 1 0 0 0 0 0 6,718 0 Credit cards 9,763 9,274 484 4 0 7 6 37 8 0 0 Commodity trade finance 5,833 5,833 0 0 0 6 6 0 6 0 0 Ship / aircraft financing 1,731 1,731 0 0 0 4 3 0 4 0 0 Consumer financing 301 301 0 0 0 34 34 0 34 0 0 Financial intermediaries and hedge funds 46,786 46,406 380 0 0 3 3 90 3 0 0 Other off-balance sheet commitments 29,854 29,541 296 11 6 8 4 95 5 6,408 4,244 Total other lending 185,502 184,320 1,160 17 6 3 2 71 2 4,774 4,215 Total 2 335,704 330,283 4,743 261 417 11 9 114 10 737 22 Total on- and off-balance sheet 3 992,931 964,532 22,462 2,862 3,075 18 9 103 12 2,173 94 1 Includes Loans and advances to customers and Loans to financial advisors which are presented on the balance sheet line Other repurchase and securities borrowing agreements. Coverage ratios for core loan portfolio 31.3.23 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 159,580 149,744 9,102 734 11 3 113 9 344 Real estate financing 48,714 45,177 3,529 8 9 4 69 9 22 Total real estate lending 208,294 194,921 12,631 742 10 3 101 9 341 Large corporate clients 13,082 11,236 1,424 422 106 18 115 29 2,424 SME clients 13,853 11,811 1,461 581 175 25 168 41 3,253 Total corporate lending 26,936 23,047 2,886 1,003 142 22 142 35 2,904 Lombard 128,985 128,912 0 74 2 1 0 1 2,286 Credit cards 1,868 1,426 391 52 201 56 255 99 3,793 Commodity trade finance 3,149 3,028 20 101 305 18 11 17 9,001 Other loans and advances to customers 21,702 20,785 825 92 23 9 24 10 3,117 Loans to financial advisors 2,626 2,329 123 174 206 26 145 32 2,659 Total other lending 158,330 156,479 1,360 492 17 3 101 4 4,109 Total 1 393,560 374,447 16,876 2,237 22 4 108 9 2,319 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 6,377 6,163 212 3 6 5 28 6 340 Real estate financing 9,298 9,101 197 0 7 8 0 7 0 Total real estate lending 15,675 15,263 409 3 6 7 0 6 340 Large corporate clients 31,375 28,390 2,821 165 38 18 190 34 830 SME clients 7,674 7,124 470 80 55 30 245 44 1,114 Total corporate lending 39,049 35,514 3,290 245 41 21 198 36 923 Lombard 12,456 12,455 0 1 1 1 0 1 0 Credit cards 9,567 9,078 486 3 8 6 36 8 0 Commodity trade finance 2,187 2,187 0 0 4 4 0 4 0 Financial intermediaries and hedge funds 17,260 16,781 479 0 8 5 80 8 0 Other off-balance sheet commitments 11,483 11,086 380 17 18 7 66 9 0 Total other lending 52,953 51,587 1,345 22 8 5 60 6 0 Total 2 107,677 102,364 5,044 269 20 11 143 17 1,232 Total on- and off-balance sheet 3 501,237 476,811 21,920 2,506 21 6 116 10 2,202 1 Includes Loans and advances repurchase and securities borrowing agreements. Coverage ratios for core loan portfolio 31.12.22 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 157,091 147,678 8,686 727 10 2 123 9 381 Real estate financing 46,511 43,129 3,372 9 9 4 70 9 232 Total real estate lending 203,602 190,807 12,059 736 10 2 108 9 379 Large corporate clients 12,356 10,757 1,204 395 105 22 120 32 2,325 SME clients 14,154 12,237 1,364 553 177 22 161 36 3,664 Total corporate lending 26,510 22,994 2,567 949 144 22 142 34 3,106 Lombard 132,313 132,205 0 108 2 1 0 1 1,580 Credit cards 1,869 1,427 393 50 190 46 256 91 3,779 Commodity trade finance 3,367 3,266 0 101 285 18 0 18 8,901 Other loans and advances to customers 20,342 19,525 748 68 21 7 38 8 3,769 Loans to financial advisors 2,670 2,364 130 176 221 28 124 33 2,870 Total other lending 160,561 158,787 1,270 503 16 3 114 4 4,016 Total 1 390,672 372,588 15,896 2,188 22 4 114 8 2,398 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 6,535 6,296 236 3 5 4 18 4 1,183 Real estate financing 10,054 9,779 275 0 6 7 0 6 0 Total real estate lending 16,589 16,075 511 3 6 6 2 6 1,288 Large corporate clients 32,126 28,950 3,013 163 38 18 165 32 1,263 SME clients 7,122 6,525 499 98 47 30 214 43 304 Total corporate lending 39,247 35,475 3,513 260 40 20 172 34 903 Lombard 12,919 12,918 0 1 2 1 0 1 0 Credit cards 9,390 8,900 487 3 7 5 36 7 0 Commodity trade finance 2,459 2,459 0 0 3 3 0 3 0 Financial intermediaries and hedge funds 15,841 14,177 1,664 0 9 7 25 9 0 Other off-balance sheet commitments 11,803 11,454 346 3 11 8 68 9 0 Total other lending 52,412 49,907 2,498 7 7 5 33 6 0 Total 2 108,249 101,457 6,522 270 19 10 106 16 980 Total on- and off-balance sheet 3 498,921 474,045 22,418 2,458 21 5 112 10 2,242 1 Includes Loans and advances repurchase and securities borrowing agreements.

Fair value measurement

Fair value measurement	6 Months Ended
	Jun. 30, 2023
Disclosure Of Fair Value Measurement [Line Items]
Disclosure Of Fair Value Measurement Explanatory	Note 9 a) Fair value hierarchy The fair summarized in the table below. During the first six months of 2023, 2023, assets and liabilities that were transferred from Level 2 to Level 1, or from Level 1 to Level 2, and were held for the entire reporting period were not material. Determination of fair values from quoted market 1 30.6.23 31.3.23 31.12.22 USD m Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value on a recurring basis Financial assets at fair value held for trading 117,863 30,122 3,113 151,098 104,793 11,865 1,099 117,757 96,241 10,138 1,488 107,866 of which: Equity instruments 96,546 1,330 454 98,329 87,723 295 177 88,194 83,074 789 126 83,988 of which: Government bills / bonds 13,586 11,865 67 25,518 8,902 1,534 23 10,460 5,496 950 18 6,464 of which: Investment fund units 6,123 773 146 7,043 7,187 536 10 7,733 6,673 596 61 7,330 of which: Corporate and municipal bonds 1,592 11,310 995 13,897 977 7,449 442 8,867 976 6,363 541 7,880 of which: Loans 0 2,854 1,045 3,899 0 1,812 329 2,141 0 1,179 628 1,807 of which: Asset-backed securities 15 1,970 406 2,391 4 239 118 360 22 261 114 397 Derivative financial instruments 1,072 181,900 2,978 185,949 879 112,064 1,309 114,251 769 147,875 1,464 150,108 of which: Foreign exchange 576 73,686 425 74,686 515 51,731 3 52,249 575 84,881 2 85,458 of which: Interest rate 0 62,950 761 63,711 0 36,339 398 36,737 0 39,345 460 39,805 of which: Equity / index 1 38,544 1,108 39,652 1 21,180 578 21,759 1 21,542 653 22,195 of which: Credit 0 4,802 580 5,382 0 944 309 1,253 0 719 318 1,038 of which: Commodities 7 1,686 28 1,720 0 1,780 20 1,800 0 1,334 30 1,365 Brokerage receivables 0 21,537 0 21,537 0 21,025 0 21,025 0 17,576 0 17,576 Financial assets at fair value not held for trading 31,358 71,889 15,358 118,605 32,279 30,713 3,834 66,826 26,572 29,498 3,725 59,796 of which: Financial assets for unit-linked investment contracts 14,802 171 0 14,973 14,004 97 0 14,101 13,071 1 0 13,072 of which: Corporate and municipal bonds 61 12,673 359 13,093 86 13,601 241 13,928 35 14,101 230 14,366 of which: Government bills / bonds 16,144 3,976 0 20,120 17,824 3,140 0 20,965 13,103 3,638 0 16,741 of which: Loans 0 10,395 7,861 18,256 0 3,706 810 4,516 0 3,602 736 4,337 of which: Securities financing transactions 0 43,798 109 43,907 0 9,670 108 9,779 0 7,590 114 7,704 of which: Auction rate securities 0 0 1,321 1,321 0 0 1,321 1,321 0 0 1,326 1,326 of which: Investment fund units 321 516 683 1,519 295 498 288 1,081 307 566 190 1,063 of which: Equity instruments 29 227 3,092 3,348 70 0 879 949 57 0 792 849 Financial assets measured at fair value through other comprehensive income on Financial assets measured at fair value through other comprehensive income 65 2,152 0 2,217 60 2,181 0 2,241 57 2,182 0 2,239 of which: Commercial paper and certificates of deposit 0 1,926 0 1,926 0 1,921 0 1,921 0 1,878 0 1,878 of which: Corporate and municipal bonds 65 217 0 282 60 233 0 293 57 278 0 335 Non-financial assets measured at fair value on a recurring basis Precious metals and other physical commodities 5,794 0 0 5,794 4,506 0 0 4,506 4,471 0 0 4,471 Non-financial assets measured at fair value on a non-recurring basis Other non-financial assets 2 0 1 89 90 0 0 109 109 0 0 110 110 Total assets measured at fair value 156,152 307,601 21,538 485,291 142,516 177,847 6,351 326,714 128,110 207,269 6,788 342,166 of which: Credit Suisse 3 15,168 121,363 14,769 151,301 Determination of fair values from quoted market 1 30.6.23 31.3.23 31.12.22 USD m Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial liabilities measured at fair value on a recurring basis Financial liabilities at fair value held for trading 33,231 6,983 150 40,364 28,332 5,941 101 34,374 23,578 5,823 114 29,515 of which: Equity instruments 22,984 311 83 23,378 19,411 370 58 19,839 16,521 352 78 16,951 of which: Corporate and municipal bonds 32 5,639 61 5,731 33 4,610 38 4,681 36 4,643 27 4,707 of which: Government bills / bonds 9,159 957 0 10,115 7,919 728 0 8,647 5,880 706 1 6,587 of which: Investment fund units 1,057 46 3 1,106 969 204 3 1,176 1,141 84 3 1,229 Derivative financial instruments 1,007 186,797 5,343 193,147 967 113,051 2,095 116,113 640 152,582 1,684 154,906 of which: Foreign exchange 591 75,856 132 76,580 529 52,706 33 53,267 587 87,897 24 88,508 of which: Interest rate 0 61,690 355 62,045 0 34,317 360 34,677 0 37,429 116 37,545 of which: Equity / index 0 41,569 3,714 45,284 1 23,207 1,365 24,573 0 24,963 1,184 26,148 of which: Credit 2 5,629 605 6,235 0 1,057 286 1,343 0 920 279 1,199 of which: Commodities 6 1,685 37 1,728 0 1,592 33 1,625 0 1,309 52 1,361 Financial liabilities designated at fair value on a recurring basis Brokerage payables designated at fair value 0 43,852 0 43,852 0 43,911 0 43,911 0 45,085 0 45,085 Debt issued designated at fair value 0 105,951 19,099 125,050 0 66,748 10,485 77,233 0 63,111 10,527 73,638 Other financial liabilities designated at fair value 0 33,097 3,025 36,122 0 25,180 579 25,758 0 29,547 691 30,237 of which: Financial liabilities related to unit- linked investment contracts 0 15,124 0 15,124 0 14,243 0 14,243 0 13,221 0 13,221 of which: Securities financing transactions 0 13,295 0 13,295 0 9,707 0 9,707 0 15,333 0 15,333 of which: Over-the-counter debt instruments and others 0 4,678 3,025 7,703 0 1,230 579 1,809 0 993 691 1,684 Total liabilities measured at fair value 34,238 376,680 27,616 438,534 29,299 254,831 13,260 297,390 24,219 296,148 13,015 333,381 of which: Credit Suisse 3 4,442 103,921 13,284 121,646 1 Bifurcated embedded derivatives are presented on the same balance sheet lines 2 Other non-financial assets primarily consist of properties and other for more information about the acquisition of the Credit Suisse Group. b) Valuation adjustments The table below summarizes the changes Deferred day-1 profit or loss is generally released into Other net income from financial instruments measured value when observable or recognized on between the acquisition date and 30 June Deferred day-1 profit or loss reserves For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Reserve balance at the beginning of the period 399 422 425 422 418 Profit / (loss) deferred on new transactions 78 91 86 169 161 (Profit) / loss recognized in the income statement (75) (113) (58) (188) (127) Foreign currency translation (1) 0 (1) (1) (1) Reserve balance at the end of the period 402 399 451 402 451 The table below summarizes other valuation Other valuation adjustment reserves on the As of USD m 30.6.23 31.3.23 31.12.22 Own credit adjustments on financial liabilities designated at fair value 142 624 556 of which: debt issued designated at fair value 46 495 453 of which: other financial liabilities designated at fair value 96 129 103 Credit valuation adjustments (151) (33) (33) Funding / Debit valuation adjustments (172) (101) (46) Other valuation adjustments (2,911) (801) (839) of which: liquidity (1,905) (299) (311) of which: model uncertainty (1,005) (502) (529) adjustments. Own 221 m attributable 117 m Funding / Debit valuation 73 m from adjustments in Credit Suisse amount to USD 1,630 m and USD 555 m respectively. c) Level 3 instruments: valuation techniques The measure fair value, 30 June 2023 The range of values range does not reflect the level of uncertainty regarding a particular input or an assessment of the reasonableness of the Group’s estimates and assumptions, but rather the different underlying characteristics of the relevant liabilities held by the Group. The significant unobservable value measurement” in the “Consolidated financial Valuation techniques and inputs Fair value Significant unobservable input(s) 1 Range of inputs Assets Liabilities Valuation technique(s) 30.6.23 31.12.22 USD bn 30.6.23 31.12.22 30.6.23 31.12.22 low high weighted average 2 low high weighted average 2 unit 1 Financial assets and liabilities at fair value held for Corporate and municipal bonds 1.4 0.8 0.1 0.0 Relative value to market comparable Bond price equivalent 4 101 94 14 112 85 points Discounted expected cash flows Discount margin 200 391 376 412 412 basis points Traded loans, measured at fair value, loan commitments and guarantees 9.2 1.7 0.0 0.0 Relative value to market comparable Loan price equivalent 0 140 87 30 100 97 points Discounted expected cash flows Credit spread 60 3,263 347 200 200 200 basis points Market comparable and securitization model Credit spread 165 1,544 349 145 1,350 322 basis points Option model Gap risk 5 0 2 0 % Auction rate securities 1.3 1.3 Discounted expected cash flows Credit spread 115 209 156 115 196 144 basis points Investment fund units 3 0.8 0.3 0.0 0.0 Relative value to market comparable Net asset value Equity instruments 3 3.5 0.9 0.1 0.1 Relative value to market comparable Price Debt issued designated at fair value 4 19.1 10.5 Other financial liabilities designated at fair value 3.0 0.7 Discounted expected cash flows Funding spread 25 175 23 175 basis points Derivative financial instruments Interest rate 0.8 0.5 0.3 0.1 Option model Volatility of interest rates 55 161 75 143 basis points Volatility of inflation 0 6 % IR-to-IR correlation (1) 100 % Credit 0.6 0.3 0.7 0.3 Discounted expected cash flows Credit spreads 5 538 9 565 basis points Bond price equivalent 3 281 3 277 points Recovery rates 6 1 100 % Option model Credit spreads 17 707 basis points Equity / index 1.1 0.7 3.8 1.2 Option model Equity dividend yields 0 10 0 20 % Volatility of equity stocks, equity and other indices 4 138 4 120 % Equity-to-FX correlation (40) 84 (29) 84 % Equity-to-equity correlation (25) 100 (25) 100 % 1 The ranges of significant unobservable inputs are represented in points, percentages and basis points. most non-derivative financial instruments and were calculated designated at fair value 4 Debt issued designated at fair value primarily consists of UBS structured notes, which include variable maturity notes with various equity and foreign exchange underlying risks, as well as rates-linked and credit-linked notes, all of instruments are presented in 6 Recovery rate reflects the estimated recovery that will be realized given expected defaults, they may vary d) Level 3 instruments: sensitivity to changes The table below summarizes those financial assets and liabilities classified as Level 3 for more of significantly, and the estimated effect thereof. The alternative values for Level 3 scenarios. Typically, Although well-defined interdependencies may exist between interest rates, have not been incorporated not a significant element of the valuation uncertainty. Sensitivity of fair value measurements to changes 1 30.6.23 31.3.23 31.12.22 USD m Favorable changes Unfavorable changes Favorable changes Unfavorable changes Favorable changes Unfavorable changes Traded loans, loans measured at fair value, loan commitments and guarantees 325 (234) 12 (13) 19 (12) Securities financing transactions 37 (37) 27 (29) 33 (37) Auction rate securities 44 (44) 45 (45) 46 (46) Asset-backed securities 48 (47) 29 (27) 27 (27) Equity instruments 483 (397) 188 (164) 183 (161) Investment fund units 127 (129) 29 (30) 19 (21) Interest rate derivatives, net 221 (111) 20 (13) 18 (12) Credit derivatives, net 75 (67) 3 (5) 3 (4) Foreign exchange derivatives, net 6 (6) 4 (5) 10 (5) Equity / index derivatives, net 646 (614) 371 (338) 361 (330) Other 296 (292) 63 (74) 20 (41) Total 2,308 (1,978) 791 (744) 738 (696) of which: Credit Suisse 2 1,578 (1,312) 1 Sensitivity of issued and over-the-counter debt instruments is reported with the equivalent derivative e) Level 3 instruments: movements during The table below presents additional information about material Level 3 assets and liabilities measured at fair value on a recurring basis. Level 3 assets and liabilities the fair include the effect of related hedging in the table are not observable and unobservable parameters. Assets transferred at the beginning of the year. Movements of Level 3 instruments USD bn Balance at the beginning of the period Credit Suisse Level 3 assets and liabilities acquired Net gains / losses included in compre- hensive income 1 of which: related to instruments held at the end of the period Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Foreign currency translation Balance at the end of the period For the six months ended 30 June 2023 2 Financial assets at fair value held for trading 1.5 2.2 (0.5) (0.5) 0.5 (1.1) 0.7 0.0 0.1 (0.3) 0.0 3.1 of which: Investment fund units 0.1 0.1 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.0 (0.0) (0.0) 0.1 of which: Corporate and municipal bonds 0.5 1.1 (0.4) (0.4) 0.3 (0.6) 0.0 0.0 0.0 (0.0) 0.0 1.0 of which: Loans 0.6 0.2 0.0 0.0 0.0 (0.3) 0.7 0.0 0.0 (0.2) 0.0 1.0 Derivative financial instruments – assets 1.5 1.4 (0.1) (0.1) 0.0 (0.0) 0.5 (0.3) 0.1 (0.2) 0.0 3.0 of which: Interest rate 0.5 0.2 0.1 0.1 0.0 0.0 0.1 (0.0) 0.0 (0.0) (0.0) 0.8 of which: Equity / index 0.7 0.5 (0.1) (0.1) 0.0 (0.0) 0.3 (0.2) 0.0 (0.2) (0.0) 1.1 of which: Credit 0.3 0.2 (0.0) (0.0) 0.0 (0.0) 0.1 (0.0) 0.0 (0.0) 0.0 0.6 Financial assets at fair value not held for trading 3.7 11.6 (0.1) (0.2) 0.7 (0.5) 0.0 (0.0) 0.1 (0.1) 0.0 15.4 of which: Loans 0.7 7.1 (0.1) (0.1) 0.4 (0.1) 0.0 (0.0) 0.0 (0.1) (0.0) 7.9 of which: Auction rate securities 1.3 0.0 0.0 0.0 0.0 (0.0) 0.0 0.0 0.0 0.0 0.0 1.3 of which: Equity instruments 0.8 2.1 (0.0) (0.0) 0.2 (0.1) 0.0 0.0 0.0 0.0 0.0 3.1 Derivative financial instruments – liabilities 1.7 2.8 0.6 0.5 0.0 (0.0) 0.8 (0.4) 0.1 (0.3) 0.0 5.3 of which: Interest rate 0.1 0.2 0.0 0.0 0.0 0.0 0.1 (0.1) 0.0 0.0 0.0 0.4 of which: Equity / index 1.2 1.7 0.5 0.5 0.0 (0.0) 0.6 (0.3) 0.0 (0.1) 0.0 3.7 of which: Credit 0.3 0.3 0.0 0.0 0.0 (0.0) 0.1 (0.0) 0.1 (0.2) (0.0) 0.6 Debt issued designated at fair value 10.5 8.5 0.4 0.4 0.0 0.0 2.4 (2.5) 0.6 (0.8) (0.0) 19.1 Other financial liabilities designated at fair value 0.7 2.1 0.0 0.0 0.0 0.0 0.2 (0.1) 0.0 (0.0) (0.0) 3.0 For the six months ended 30 June 2022 Financial assets at fair value held for trading 2.3 (0.1) (0.2) 0.3 (1.3) 1.0 0.0 0.1 (0.3) (0.0) 1.9 of which: Investment fund units 0.0 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.0 (0.0) (0.0) 0.0 of which: Corporate and municipal bonds 0.6 (0.0) (0.0) 0.2 (0.1) 0.0 0.0 0.0 (0.0) (0.0) 0.7 of which: Loans 1.4 (0.1) (0.1) 0.0 (1.2) 1.0 0.0 0.0 (0.2) (0.0) 1.0 Derivative financial instruments – assets 1.1 0.5 0.6 0.0 0.0 0.5 (0.4) 0.2 (0.2) (0.0) 1.8 of which: Interest rate 0.5 0.1 0.1 0.0 0.0 0.0 (0.1) 0.1 (0.1) (0.0) 0.4 of which: Equity / index 0.4 0.3 0.3 0.0 0.0 0.2 (0.2) 0.0 (0.0) (0.0) 0.7 of which: Credit 0.2 0.1 0.1 0.0 0.0 0.2 (0.0) 0.1 0.0 0.0 0.6 Financial assets at fair value not held for trading 4.2 0.1 0.1 0.6 (0.6) 0.0 (0.0) 0.0 (0.1) (0.1) 4.2 of which: Loans 0.9 (0.0) (0.0) 0.5 (0.2) 0.0 0.0 0.0 (0.1) (0.0) 1.0 of which: Auction rate securities 1.6 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 of which: Equity instruments 0.7 0.0 0.0 0.0 (0.1) 0.0 0.0 0.0 0.0 (0.0) 0.7 Derivative financial instruments – liabilities 2.2 (0.6) (0.6) 0.0 0.0 0.9 (0.8) 0.1 (0.1) (0.1) 1.7 of which: Interest rate 0.3 (0.2) (0.2) 0.0 0.0 0.1 (0.0) 0.0 0.0 (0.0) 0.1 of which: Equity / index 1.5 (0.3) (0.3) 0.0 0.0 0.6 (0.7) 0.0 (0.1) (0.0) 1.1 of which: Credit 0.3 (0.1) (0.1) 0.0 0.0 0.1 0.0 0.1 (0.0) (0.0) 0.4 Debt issued designated at fair value 14.2 (2.5) (2.3) 0.0 0.0 4.2 (2.7) 0.7 (1.5) (0.4) 12.0 Other financial liabilities designated at fair value 0.8 (0.0) (0.0) 0.0 0.0 0.2 (0.1) 0.0 (0.0) (0.0) 0.9 1 Net gains / losses included in comprehensive income are recognized in Net interest income and Other net income from financial instruments measured at fair value through profit or loss in the Income statement, and also in Gains / (losses) from own credit on financial liabilities designated at fair 21.5 bn (31 December 2022: USD 6.8 bn). Total Level 3 liabilities as of 30 June 2023 were USD 27.6 bn (31 December 2022: USD 13.0 bn). f) Financial instruments not measured The table principles applied consistent with those described in “Note 20 Fair Value measurement” in the “Consolidated financial statements” section of the Annual Report 2022. Financial instruments not measured at fair value 30.6.23 31.3.23 31.12.22 USD bn Carrying amount Fair value Carrying amount Fair value Carrying amount Fair value Assets Cash and balances at central banks 261.6 261.6 144.2 144.2 169.4 169.4 Amounts due from banks 24.4 24.3 14.9 15.0 14.8 14.8 Receivables from securities financing transactions measured at amortized 86.5 86.6 60.0 60.0 67.8 67.8 Cash collateral receivables on derivative instruments 54.3 54.3 32.7 32.6 35.0 35.0 Loans and advances to customers 651.8 639.3 390.1 378.5 387.2 374.9 Other financial assets measured at amortized cost 64.9 62.5 49.2 47.2 53.3 50.8 Liabilities Amounts due to banks 99.2 99.2 13.6 13.6 11.6 11.6 Payables from securities financing transactions measured at amortized cost 22.3 22.3 9.9 9.9 4.2 4.2 Cash collateral payables on derivative instruments 41.4 41.4 32.2 32.2 36.4 36.4 Customer deposits 712.5 712.3 505.6 504.9 525.1 524.8 Debt issued measured at amortized cost 230.9 229.9 116.3 113.7 114.6 113.5 Other financial liabilities measured at amortized cost 1 13.6 13.7 7.0 7.0 6.2 6.2 1 Excludes lease liabilities.

Derivative instruments

Derivative instruments	6 Months Ended
	Jun. 30, 2023
Derivative [Line Items]
Disclosure Of Derivative Financial Instruments Explanatory	Note 10 Derivative instruments a) Derivative instruments As of 30.6.23, USD bn Derivative financial assets Derivative financial liabilities Notional values related to derivative financial assets and liabilities 1 Other notional values 2 Derivative financial instruments Interest rate 63.7 62.0 3,788 3 25,438 Credit derivatives 5.4 6.2 379 Foreign exchange 74.7 76.6 7,350 82 Equity / index 39.7 45.3 1,192 497 Commodities 1.7 1.7 159 23 Other 4 0.8 1.3 140 Total derivative financial instruments, based on IFRS netting 5 185.9 193.1 13,010 26,040 of which: Credit Suisse 6 63.2 66.7 2,804 10,689 Further netting potential not recognized on the balance 7 (170.0) (174.9) of which: netting of recognized financial liabilities / assets (140.0) (140.0) of which: netting with collateral received / pledged (30.0) (34.9) Total derivative financial instruments, after consideration of further netting potential 15.9 18.2 As of 31.3.23, USD bn Derivative financial instruments Interest rate 36.7 34.7 2,345 13,842 Credit derivatives 1.3 1.3 86 Foreign exchange 52.2 53.3 6,610 56 Equity / index 21.8 24.6 932 76 Commodities 1.8 1.6 146 19 Other 4 0.4 0.6 106 Total derivative financial instruments, based on IFRS netting 5 114.3 116.1 10,224 13,993 Further netting potential not recognized on the balance 7 (105.4) (104.3) of which: netting of recognized financial liabilities / assets (84.9) (84.9) of which: netting with collateral received / pledged (20.5) (19.4) Total derivative financial instruments, after consideration of further netting potential 8.8 11.8 As of 31.12.22, USD bn Derivative financial instruments Interest rate 39.8 37.5 2,080 11,255 Credit derivatives 1.0 1.2 74 Foreign exchange 85.5 88.5 6,080 40 Equity / index 22.2 26.1 886 63 Commodities 1.4 1.4 132 18 Other 4 0.2 0.1 50 Total derivative financial instruments, based on IFRS netting 5 150.1 154.9 9,302 11,376 Further netting potential not recognized on the balance 7 (139.4) (137.1) of which: netting of recognized financial liabilities / assets (110.9) (110.9) of which: netting with collateral received / pledged (28.5) (26.2) Total derivative financial instruments, after consideration of further netting potential 10.7 17.8 1 In cases where derivative Notional amounts of client-cleared ETD and OTC transactions that are cleared through either financial assets and Derivative financial liabilities). The fair value of these derivatives is presented on the balance sheet net of the corresponding cash margin under Cash collateral receivables on derivative instruments and Cash collateral 225 bn related to 4 Includes mainly Loan commitments measured date are recognized as amounts, both in the normal course of business and in the event of default, bankruptcy or insolvency of UBS or its simultaneously. where not all criteria for a net presentation on the balance sheet have been met. Refer to “Note 21 Offsetting financial assets and financial liabilities” in the “Consolidated financial statements” section of the Annual Report 2022 for more information. USD bn Receivables 30.6.23 Payables 30.6.23 Receivables 31.3.23 Payables 31.3.23 Receivables 31.12.22 Payables 31.12.22 Cash collateral on derivative instruments, based on IFRS netting 1 54.3 41.4 32.7 32.2 35.0 36.4 of which: Credit Suisse 2 19.3 10.0 Further netting potential not recognized on the balance 3 (34.1) (26.7) (18.6) (17.3) (22.9) (21.9) of which: netting of recognized financial liabilities / assets (30.4) (22.9) (15.6) (14.3) (20.9) (20.0) of which: netting with collateral received / pledged (3.8) (3.8) (3.0) (3.0) (1.9) (1.9) Cash collateral on derivative instruments, after consideration of further netting potential 20.2 14.7 14.1 14.9 12.1 14.5 1 Financial assets and liabilities are presented event of default, bankruptcy or insolvency of UBS or its counterparties, and intends either to settle on a net basis or to realize the asset about the acquisition of the Credit Suisse Group. sheet have been met. Refer to “Note 21 Offsetting financial assets and financial liabilities” in the “Consolidated financial statements” section of

Other assets and liabilities

Other assets and liabilities	6 Months Ended
	Jun. 30, 2023
Other Assets And Other Liabilities [Line Items]
Disclosure Of Other Assets And Other Liabilities Explanatory	Note 11 Other assets and liabilities a) Other financial assets measured at USD m 30.6.23 31.3.23 31.12.22 Debt securities 43,664 40,646 44,594 Loans to financial advisors 2,588 2,571 2,611 Fee- and commission-related receivables 2,774 1,927 1,812 Finance lease receivables 5,868 1,345 1,315 Settlement and clearing accounts 811 542 1,175 Accrued interest income 2,746 1,300 1,259 Other 6,477 847 499 Total other financial assets measured at amortized cost 64,928 49,179 53,264 of which: Credit Suisse 1 12,841 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. b) Other non-financial assets USD m 30.6.23 31.3.23 31.12.22 Precious metals and other physical commodities 5,794 4,506 4,471 Deposits and collateral provided in connection with litigation, 1 3,006 2,235 2,205 Prepaid expenses 3,138 1,265 1,076 Current tax assets 1,331 167 182 VAT, 1,279 1,733 1,286 Properties and other non-current assets held for sale 485 370 369 Other 1,885 681 578 Total other non-financial assets 16,919 10,958 10,166 of which: Credit Suisse 2 6,971 1 Refer to Note 15 for more information. c) Other financial liabilities measured at USD m 30.6.23 31.3.23 31.12.22 Other accrued expenses 3,653 1,895 1,760 Accrued interest expenses 4,639 1,920 1,949 Settlement and clearing accounts 1,931 1,548 1,075 Lease liabilities 5,810 3,294 3,334 Other 3,370 1,634 1,457 Total other financial liabilities measured at amortized cost 19,403 10,292 9,575 of which: Credit Suisse 1 7,415 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. e) Other non-financial liabilities USD m 30.6.23 31.3.23 31.12.22 Compensation-related liabilities 7,310 4,550 6,822 of which: net defined benefit liability 777 485 469 Current tax liabilities 1,630 968 1,071 Deferred tax liabilities 434 266 236 VAT, 822 676 592 Deferred income 828 290 235 Other 970 62 84 Total other non-financial liabilities 11,994 6,811 9,040 of which: Credit Suisse 1 4,383 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. d) Other financial liabilities designated at USD m 30.6.23 31.3.23 31.12.22 Financial liabilities related to unit-linked investment contracts 15,124 14,243 13,221 Securities financing transactions 13,295 9,707 15,333 Over-the-counter debt instruments and other 7,703 1,809 1,684 Total other financial liabilities designated at fair value 36,122 25,758 30,237 of which: Credit Suisse 1 6,996 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.

Debt issued designated at fair

Debt issued designated at fair value	6 Months Ended
	Jun. 30, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Financial Instruments Designated At Fair Value Through Profit Or Loss Explanatory	Note 12 Debt issued designated at fair value USD m 30.6.23 31.3.23 31.12.22 Issued debt instruments Equity-linked 1 64,446 44,721 41,901 Rates-linked and fixed-rate 42,676 22,470 22,814 Credit-linked 7,655 2,815 2,170 Commodity-linked 4,234 4,311 4,294 Other 6,039 2,916 2,459 of which: debt that contributes to total loss-absorbing capacity 4,287 2,477 1,959 Total debt issued designated at fair value 2 125,050 77,233 73,638 of which: issued by UBS AG standalone with original maturity greater 3 64,047 60,268 57,750 of which: issued by Credit Suisse AG standalone with original maturity 3 34,814 of which: issued by Credit Suisse International standalone 3 1,561 1 Includes investment fund unit-linked instruments issued. As of 30 June 2023, 100 % of the balance was unsecured (31 March 2023: 100 %; 31 December 2022: 100 %).

Debt issued held at amortized c

Debt issued held at amortized cost	6 Months Ended
	Jun. 30, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Debt Securities Explanatory	Note 13 Debt issued measured at amortized cost USD m 30.6.23 31.3.23 31.12.22 Short-term debt 1 40,522 27,412 29,676 of which: Credit Suisse 4,932 Senior unsecured debt that contributes to total loss-absorbing 97,927 47,172 42,073 Senior unsecured debt other than TLAC 43,508 18,680 17,892 of which: issued by UBS AG standalone with original maturity greater 14,918 15,472 17,892 of which: issued by Credit Suisse AG standalone with original maturity 26,346 Covered bonds 3,934 Subordinated debt 16,832 14,175 16,017 of which: eligible as high-trigger loss-absorbing additional 9,928 10,002 9,882 of which: eligible as low-trigger loss-absorbing additional 1,190 1,198 1,189 of which: eligible as low-trigger loss-absorbing tier 2 capital 0 2,438 2,422 of which: eligible as non-Basel III-compliant tier 2 capital 539 538 536 Debt issued through the Swiss central mortgage institutions 24,862 8,873 8,962 Other long-term debt 3,273 Long-term debt 2 190,336 88,900 84,945 of which: Credit Suisse 3 52,406 Total debt issued measured at amortized cost 4 230,857 116,312 114,621 1 Debt with an original contractual maturity classification of debt bifurcated embedded derivatives, the fair value of which was not material for

Interest rate benchmark reform

Interest rate benchmark reform	6 Months Ended
	Jun. 30, 2023
Disclosure Of Interest Rate Benchmark Reform [Line Items]
Disclosure of how entity is managing transition to alternative benchmark rates, its progress at reporting date and risks to which it is exposed arising from financial instruments because of transition [text block]	Note 14 During 2023, the Group (LIBOR) contracts. approximately USD 9 bn as mortgages), had been substantially to term Secured Overnight Financing the Investment Bank (Credit Suisse), to approximately USD 2 bn Suisse Group) relying on synthetic synthetic LIBOR rate exposures to alternative In August 2022, the June 2022 Benchmark of 2023.The counterparty conversion events that occurred primarily in April and May 2023. of these USD LIBOR-linked derivatives has been materially The Group 6 bn equivalent issued benchmark bonds (including approximately USD 3 bn of benchmark notes assumed result respective call dates, would certain benchmark bonds publicly called on rate calculation mechanics will be communicated

Provisions

Provisions	6 Months Ended
	Jun. 30, 2023
Disclosure Of Other Provisions [Line Items]
Disclosure Of Provisions Explanatory	Note 15 a) Provisions and contingent liabilities The table below presents an overview of total provisions USD m 30.6.23 31.3.23 31.12.22 Provisions related to expected credit losses (IFRS 9, Financial instruments ) 1 367 214 201 Provisions related to Credit Suisse loan commitments (IFRS Business Combinations ) 2 4,400 Provisions related to litigation, regulatory and similar matters 6,126 3,306 2,586 Acquisition-related contingent liabilities (IFRS 3, Business Combinations ) 2 2,992 Other provisions 1,044 416 456 Total provisions and contingent liabilities 14,929 3,937 3,243 of which: Credit Suisse 2 11,071 1 Refer to Note 8c for more information. The following and other provisions. USD m Litigation, regulatory and similar matters 1 Other 2 Total Balance as of 31 December 2022 2,586 456 3,042 Balance as of 31 March 2023 3,306 416 3,723 Provisions recognized upon acquisition of Credit Suisse 2,838 707 3,545 Increase in provisions recognized in the income statement 70 41 111 Release of provisions recognized in the income statement (1) (8) (9) Provisions used in conformity with designated purpose (90) (126) (216) Foreign currency translation and other movements 3 2 14 16 Balance as of 30 June 2023 6,126 1,044 7,170 of which: Credit Suisse 4 2,837 649 3,487 1 Consists of provisions capitalized reinstatement costs and unwinding of discount. Information about provisions and class, provisions.

Litigation, regulatory and simi

Litigation, regulatory and similar matters	6 Months Ended
	Jun. 30, 2023
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Disclosure Of Contingent Liabilities Explanatory	Note 15 b) Litigation, regulatory and similar matters The Group operates in arising from UBS proceedings, including litigation, arbitration, Such matters are subject predict, settlement implications of exonerated. The uncertainties inherent in all such matters affect the amount and timing of any potential outflows for both matters makes advice, it events, it these factors against the claims. obligation cannot probable. Accordingly, no matters could be significant. Developments relating to a matter that occur after the relevant reporting period, but prior matter reporting financial statements for the reporting period. Specific litigation, regulatory and other matters are considers to be material and others that management believes to be of significance to the Group due to potential financial, information is potential exposures. In the case of certain matters below, we state that we have established a provision, and for the other matters, we make no such statement. When we prejudice seriously our the confidentiality obligations whether we have a provision because it would reveal the fact that With respect to certain litigation, regulatory able to those matters for which we levels of liquidity over the relevant time periods. The “Provisions” litigation, regulatory consequence of legal assessments as to claims and proceedings that involve unique fact patterns or novel legal theories, that have not yet by the claimants. Although from litigation, from this class that are more than remote substantially Litigation, regulatory to, or conviction of, a crime could have material consequences for UBS. Resolution of regulatory proceedings may require UBS to obtain waivers of regulatory disqualifications to maintain certain operations, may entitle regulatory authorities to limit, suspend or terminate utilities to limitation, suspension for UBS. The purposes of determining of operational risk for this purpose is included Matters related contingent liabilities reflect the provisions with the acquisition 3 a further valuation adjustment of USD 3 bn reflecting an estimate of outflows relating all present obligations included in the scope of the acquisition at fair value upon closing, that liabilities beyond those that generally apply Provisions for litigation, regulatory and similar matters 1 USD m Global Wealth Manage- ment Personal & Corporate Banking Asset Manage- ment Investment Bank Group Functions Credit Suisse Total Balance as of 31 December 2022 1,182 159 8 308 928 2,586 Balance as of 31 March 2023 1,193 161 8 351 1,594 3,306 Provisions recognized upon acquisition of Credit Suisse 2,838 2,838 Increase in provisions recognized in the income statement 35 0 1 20 0 14 70 Release of provisions recognized in the income statement (1) 0 0 0 0 0 (1) Provisions used in conformity with designated purpose (37) 0 (1) (45) 0 (7) (90) Foreign currency translation / unwind of discount 7 1 0 1 1 (8) 2 Balance as of 30 June 2023 1,196 162 8 327 1,595 2,837 6,126 1 Provisions, if any, for the matters described in item 3 of this Note are recorded in Global Wealth Management, and provisions, if any, for allocated between the Investment Bank and Group Functions. Litigation, regulatory and similar matters 1. Inquiries regarding cross-border wealth management Tax examined services provided by UBS and other financial institutions. Since 2013, UBS relation to UBS’s cross-border business with French judges ordered UBS AG to provide bail (“ caution ”) of EUR 1.1 bn. In 2019, French territory and aggravated abetting unlawful EUR 3.7 bn on UBS AG and UBS (France) S.A. and awarded EUR 800 m of civil damages to the French state. A trial in the French Court of Appeal took guilty of unlawful solicitation and aggravated laundering of the proceeds of tax fraud. The court ordered a fine of EUR 3.75 m, the confiscation 1 bn, and awarded 800 m. UBS AG has filed an appeal with the French Supreme Court. A hearing in the September 2023. The fine civil damages award has been paid to the French 99 m of which was deducted from the bail), the result of UBS’s appeal. Our balance sheet 1.1 bn (USD 1.2 bn). The and the damages could exceed (or may be less than) 2. Claims related to sales of residential mortgage-backed From 2002 underwriter of US residential mortgage-backed securities (RMBS) and was a mortgages. In 2018, seeks unspecified civil monetary of 1989 related to UBS’s issuance, underwriting and sale of 40 RMBS transactions in 2006 to dismiss the 2023, UBS reached a settlement 1.435 bn to resolve all civil DOJ. Our amount that UBS believed to be appropriate 3. Madoff In relation to S.A. (now UBS by a Commission under Luxembourg offshore Luxembourg funds are in liquidation. The documentation establishing both funds identifies UBS entities in various roles, serve as board members. In 2009 and 2010, the liquidators and certain individuals, including 2.1 bn, which (BMIS Trustee). A large number of alleged beneficiaries have filed claims against losses relating to that the claims in eight test cases were inadmissible have been affirmed by the Luxembourg Court of Appeal, and the Luxembourg Supreme Court has dismissed In the funds and one of than USD 2 bn. In dismissing all 125 m of conveyances entities. In 2019, Supreme Court remanded to the Bankruptcy Court for further 4. Foreign exchange, LIBOR and benchmark rates, Foreign exchange-related regulatory matters: concerning possible investigations, Commission. UBS jurisdictions metals businesses. Foreign exchange-related civil litigation: in other jurisdictions against currency transactions with any of the defendant banks. UBS has resolved US federal court class actions relating to foreign currency transactions with contracts and options on such futures USD 141 m and from that violations of those individual matters. In persons and conspirators for 2023, the court granted defendants’ summary LIBOR and other benchmark-related regulatory regarding potential improper attempts by UBS, among others, to manipulate LIBOR and other benchmark rates at certain times. UBS reached settlements or otherwise concluded investigations relating to benchmark interest rates with the investigating authorities. UBS in certain jurisdictions, in connection with potential antitrust or competition law violations related to certain rates. However, UBS has not reached a final settlement with WEKO, as the immunity. LIBOR and in the federal certain interest rate benchmark-based derivatives. Also of other benchmarks, including depository through EURIBOR, theories. USD LIBOR class In 2013 dismissed, in whole or in Act claims, and state common law 2021, the district jurisdiction over district court’s proceeding. In 2018, the district court claims pending Circuit denied the petition against UBS and numerous other banks alleging that the basis for consumer complaint in its amended complaint in October 2022, and defendants Other benchmark class actions in the US: Yen – In 2017, the court dismissed one Yen LIBOR / Euroyen TIBOR action in its entirety on standing grounds. In an amended complaint dismissed the case against UBS. The dismissal of the case against UBS could be appealed following of the case against the remaining defendant in the CHF LIBOR Plaintiffs appealed. In for further dismiss the amended complaint in January EURIBOR defendants for lack of personal jurisdiction. GBP LIBOR Government bonds: banks complaint was filed in 2017 in the US District Court colluded with market and the consolidated complaint to dismiss later in 2021. In March 2022, the court granted have other government bonds. In Union antitrust rules in 2007–2011 EUR 172 m. UBS is appealing the amount of the fine. With respect above, our balance sheet at 30 June 2023 under the the future outflow of resources in respect of such matters available information provision that we have recognized. 5. Swiss retrocessions The Federal Supreme Court of Switzerland ruled in 2012, in a firm for distributing third-party surrendered waiver. FINMA issued a the FINMA requirements and has notified all potentially The Supreme and potentially surrender retrocessions. Client requests are assessed on a case-by-case basis. Considerations taken into account whether or not the client documentation contained Our amount that UBS believes to be appropriate under the applicable accounting standard. The ultimate exposure will depend on client the case of such matters ultimately prove to be substantially greater (or Litigation regulatory and similar matters 1. Mortgage-related matters Government and regulatory related matters DOJ RMBS : On US subsidiaries and US affiliates reached a settlement Residential resolved potential civil structuring, arrangement, underwriting, issuance monetary penalty was paid to provide certain and the DOJ and of the satisfying its longer consumer relief relation to after 5 % obligations are settled. The monitor publishes reports periodically Civil litigation : CSS LLC and/or certain of its affiliates have also been named as defendants in various civil litigation matters related to their roles as issuer, sponsor, depositor, underwriter and/or servicer cases breached representations loans plaintiff losses to date or anticipated future litigation exposure. Unless original unpaid principal balance amounts amounts since issuance. DLJ Mortgage Capital, Inc. (DLJ) is a defendant in New York state court in: (i) Securities Corporation USD 374 m in an (ii) one than USD 436 m; (iii) one action brought by Home Equity Asset Trust 2007-1, not less than USD 420 m; on December 27, 2018, the court denied DLJ’s motion for this action, which was affirmed on appeal; on March 17, 2022, the New decision and ordered held between January 23 and Asset Trust 2007-2, in which 495 m; and (v) one CSMC procedural stages. DLJ is also a defendant in one damages of not 206 m. On March this action. state court by the trustee of the plaintiff DLJ and its affiliate, Select Portfolio Servicing, Inc. (SPS), were defendants state court: one action brought 2006-3 and Home 730 m; and one action brought of not less 500 m. On April actions for the aggregate amount of USD 500 m, for which Credit Suisse was fully Minnesota state the plaintiff trusts. The New York state court 2. Tax and securities law matters On May 19, US independent corporate monitor 2018, cooperate with US authorities in accordance by conducting recently, held by authorities. In March 2023, the US Senate Finance Committee issued a report criticizing Credit Suisse AG’s history regarding US tax 2014 plea. In February 2021, had violated the allowed Credit Suisse AG to pay a criminal fine in 2014 that was purportedly lower than it should have been. The DOJ moved to US Federal Court of Appeals for the Fourth 3. Rates-related matters Regulatory matters : Regulatory authorities in a number of jurisdictions, including the US, UK, EU and Switzerland, have for an extended period of time been conducting investigations into the setting of LIBOR and other reference rates with investigations have included the activities rate-setting panels these investigations. Regulatory authorities in a number of jurisdictions, including WEKO, South investigations into exchange (including electronic trading) markets. On institutions, including trading. Credit Suisse continues to cooperate Credit Suisse of Objections and a Supplemental Statement of Objections from the Commission 2021, respectively, alleging foreign exchange fine of EUR 83.3 m. On February 15, 2022, Credit Suisse The supranational, sub-sovereign received a engaged in anticompetitive practices in connection with their SSA bonds trading business. On April 28, 2021, the Commission issued a formal decision 11.9 m. On July 8, decision to the EU General Court. Civil litigation: USD LIBOR litigation Beginning in 2011, certain individual lawsuits benefit their reputation into a multi-district litigation in the US District In a series of rulings between 2013 and 2019 on motions Credit Organizations Act (RICO), Commodity Exchange Act, and may bring claims, and Credit Suisse entities from of putative class and individual plaintiffs appealed the dismissal of their antitrust of Appeals for the Second reversed in part the district court’s decision On September 21, 2021, in the putative class action brought in the multi-district litigation in the SDNY by holders of bonds March 28, 2023, respectively, settle all claims. Separately, on May 4, 2017, the plaintiffs in three putative class actions moved for class certification. On February 28, 2018, the SDNY in an action brought by over-the-counter purchasers USD ICE AG and California, alleging that panel banks manipulated ICE LIBOR to profit from variable interest loans and credit cards. On December panel September 13, amended complaint. On November 4, 2022, CHF LIBOR litigation Suisse Group Swiss franc LIBOR to benefit defendants’ trading positions. After defendants’ motion to dismiss for lack of subject matter jurisdiction was agreement to settle all claims. On February 15, 2023, the the agreement to settle all claims. The settlement Foreign exchange litigation – named in civil lawsuits relating to the alleged The first a participated in that Credit Suisse did not knowingly participate final judgment by the April 27, 2023 deadline. Credit Suisse AG, together with other financial institutions, in Israel, into an agreement to settle all claims. The Treasury markets in a number of generally alleged treasury securities in the the defendants secondary market dismissed with prejudice all claims against SSA bonds litigation were named in bonds against Credit Suisse on February 19, 2020. an agreement to settle all claims. The settlement Credit default swap auction litigation – On June 30, 2021, Credit Suisse Group AG and affiliates, along banks and entities, were named in a putative class action New Mexico alleging manipulation of credit default swap (CDS) final auction prices. On April 5, 2022, defendants filed a dismiss. 4. OTC trading cases Interest rate been relating development of interest rate swap exchanges. The individual lawsuits were brought by TeraExchange execution facility, and affiliates; Javelin Capital Markets LLC, a swap execution facility, LLC, a All interest rate swap actions have been consolidated Defendants moved to dismiss the in part these motions. On February On March 2022, Credit Suisse court approval. The individual lawsuits are Credit default swaps litigation : On June 8, 2017, Credit Suisse Group AG and institutions, were named in a violations of antitrust CDS trading in part 2020, defendants filed a motion to dismiss. Stock loan litigation : Credit Suisse originally named in alleging that the boycotted certain trading platforms that sought to enter the market, and certain of platforms that January 20, 2022, Credit Suisse entered into an agreement to settle all class action claims. On the court settlement remains subject to final court On October platform for stock platform, the court On March 24, 2023, the Second Circuit affirmed Odd-lot corporate On April putative class action complaint filed in the SDNY, alleging a conspiracy among the financial institutions to boycott electronic trading platforms 2021, the SDNY granted defendants’ motion to to the Second Circuit. 5. ATA litigation Since November 2014, a series of lawsuits have been filed and, in two instances, Credit Suisse AG, New York York (EDNY) and the Sponsors of Terrorism Act. The plaintiffs in each of these attacks in Iraq financial institutions, including that transactions from detection by US transfer funds civilians. On January 5, 2023, the United States Court of Appeals for the Second Circuit affirmed a September 2019 ruling by the EDNY granting defendants’ motion to dismiss the first filed lawsuit. On May 8, 2023, plaintiffs filed a petition for pending the outcome of and most of the bank defendants prior to entry of the stay, to file amended complaints, replead. 6. Customer account matters Several authority investment losses. Suisse AG filed a criminal complaint against the former relationship manager with the Geneva Prosecutor’s Office upon which the filed manager mismanagement and 130 m. Several On June 26, relationship decision to the Swiss judgment on the appeals, substantially confirming Civil lawsuits have been initiated against the findings established in the criminal proceedings In Singapore, in 2023, the Singapore International Commercial Court issued a first instance judgment directing the parties’ experts to agree on the and compensation already paid to the plaintiffs award in experts, 750 m, interest. This figure appealed. directions, the parties have filed their proposed draft orders with supporting documents on August 25, 2023. It is expected that the court will issue Trust Limited intends to appeal the judgment In Bermuda, in the civil lawsuit brought against took place in the Supreme Court issued a first instance judgment on March 29, 2022, finding of Bermuda 607.35 m to Life (Bermuda) Ltd. appealed the decision to the Bermuda Court of Appeal. On July 25, 2022, the Supreme Court of Bermuda granted a stay were paid into an escrow account within 42 Court of Appeal the Supreme Court fiduciary duties, had made for leave to Ltd. applied to the account and that interest be added to the escrow 3.5 %. In Switzerland, civil with statements of claim served on March 6 7. FIFA-related matters In connection with investigations alleged Suisse FIFA, indictment investigations processing of suspicious or otherwise improper regulations, continues to cooperate (FINMA) announced the conclusion of its related investigation 8. Mozambique matter Credit Suisse has regarding certain Credit S.A. and Empresa Mocambiacana de Atum S.A. (EMATUM), a distribution to notes (LPN) related role in arranging the exchange former Credit Suisse employees pleaded guilty in the EDNY to accepting improper personal benefits in connection with financing transactions carried out with On October (SEC), the Group AG entered criminal information charging Credit Suisse Group entry of a Cease its undertake additional measures as approximately 175.5 m. dismissed at the end of the DPA’s three-year term. In addition, CSSEL entered into a Plea Agreement and pleaded guilty to compliance, remediation and reporting obligations as Credit Suisse Group AG under the DPA. the SEC 65 m and 34 m in disgorgement and pre-judgment interest in connection with violations of antifraud Exchange Act 10(b) and controls monetary sanctions paid USD 275 m. Under the eligible investors in EDNY approved 22.6 m in restitution paid, the USD 175.6 m net penalty set out in the DPA and In the that, in respect of these transactions skill, care and with adequate 200 m and agreed with the FCA to forgive USD 200 m of debt owed to Credit Suisse by Mozambique. FINMA also entered a decree announcing the conclusion of its enforcement proceeding, finding that Credit Suisse AG and Credit Suisse Suisse related securities certain existing and satisfactorily implemented. decree. An measures. On February 27, entities were Suisse entities filed project contractor and several Mozambique officials. The Republic Claim on 15, 2021. Following a re-amended defense guarantee issued Suisse subsidiary ProIndicus and Management S.A. entities (as and/or contribution in the event that the contractor is found liable to the Republic of 2022, the Republic of Mozambique filed an updated Particulars of Claim addressing Credit Suisse’s October 2021 resolutions with various regulatory and enforcement On scheduled trial to begin in October 2023. On April claim declaration that Credit Suisse sovereign guarantee. The Credit Suisse entities filed their defense to this claim on August 28, 2020, to which BIM replied on amended reply on January 5, 2022. On December LLC seeking unspecified by Credit Suisse February 4, 2022, On June 3, 2021, certain Credit Suisse entities Suisse is liable to compensate it for alleged losses suffered as a result of The December 15, 2021, and UBA filed its amended On March 16, 2023, Moza Suisse AG ProIndicus syndicate members. This claim has been stayed until the determination of the October 2023 trial in the English High Court in the litigation brought On February Mozambique transactions, and CSSEL and due to with global regulators. On August 18, final judicial the parties filed an application for a stay On November 2, relation to Group AG above. 9. Cross-border private banking matters Credit contacted investigations into Credit Suisse’s historical private banking services local branches have been closed, and is continuing to cooperate 10. ETN-related litigation XIV litigation: Since March 14, 2018, three class class of VIX Short-Term Futures Index amended class claims for violations of Sections 9(a)(4), 9(f), Sections 11 and 15 of investors amended complaint dismiss and of appeal. On April 27, 2021, the Second Circuit issued an order affirming in part September 25, filed a motion for class certification. On March 16, 2023, the court denied plaintiffs’ three defendants moved class certification their complaint. On May 15, 2023, plaintiffs filed DGAZ litigation: On January brought on Notes linked for violations responsible for losses and suspend further issuances March 31, 2023, order dismissing the case with prejudice. 11. Bulgarian former clients matter Credit concerning the alleged to have laundered funds charges against Credit with applicable legal Court took Criminal Court to pay a fine of CHF 2 m. In 12 m and Suisse AG to pay a 19 m. On July 5, 2022, AG appealed the decision to the Swiss Federal 12. SCFF Credit enforcement and other regulatory and governmental agencies. The Luxembourg reviewing the matter through a third party. Credit Suisse is cooperating with these authorities. On February 28, 2023, connection with the SCFF matter. In its order, FINMA reported Swiss supervisory FINMA investigation into the supportive requirement that the most 500 ) business relationships must holistically at document defining the responsibilities of 600 an audit officer to assess compliance with these regarding Suisse. Certain civil actions have and directors in various diligence and other fiduciary duties. Certain investors and other private against Credit Suisse and other parties in 13. Archegos Credit and/or actions from Commodity Authority governmental agencies. Credit Suisse is cooperating On Suisse’s relationship with Archegos. UBS Group into an Order to Cease and Desist with the Board of Governors of the Federal Reserve System. Under the terms the 269 m measures management, as well as enhancements to CSI investigation, following which 87 m on and CSSEL for breaches of various of the PRA’s FINMA also that Archegos and ordering remedial measures directed at Credit Suisse AG and UBS Group AG, as the legal successor to positions relating to individual clients throughout the financial group, as well as adjustments to the compensation system of FINMA connection with this matter. On April class action complaint for violations of Sections violated management practices, an agreement order granting preliminary and final approval Additional civil actions relating and/or certain officers and directors, including 14. Credit Suisse financial disclosures Three Jersey (DNJ) defendants made include allegations relating AG. On July 7, 2023, the DNJ transferred the cases to Credit Suisse has received requests for documents and information from regulatory and governmental agencies in connection with inquiries, regarding cooperating with the authorities in these matters. 15. Merger-related litigation On May officers, and executives scandals and misconduct led to a loss of shareholder value and, eventually, Credit Suisse Group AG’s merger with UBS Group fiduciary duty under Swiss law, and civil RICO claims under United States On June directors, officers, and executives on capital notes between January

Basis of accounting (Policy)

Basis of accounting (Policy)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Material Accounting Policies Descriptions [Line Items]
Basis of preparation	Basis of preparation The consolidated UBS or the Group) are prepared in accordance with International the International Accounting Standards statements are prepared in accordance with Interim Financial Reporting . In preparing been applied as in the 2022, except Suisse UBS Group AG’s report” sections of this report, including the disclosures in the “Acquisition report. In Group’s financial position, results of operations
Critical accounting estimates and judgments	Preparation of these interim financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, income, expenses and disclosures of contingent assets and liabilities. These estimates and assumptions are based on the best available information. Actual results in the future could differ from such estimates and differences may be material to the financial statements. Revisions to estimates, based on regular reviews, are recognized in the period in which they occur. For more information about areas of estimation uncertainty that are considered to require critical judgment, refer to this Note and Note 2, as well as “Note 1a Material accounting policies” in the “Consolidated financial statements” section of the Annual Report 2022.
Business combinations	Business combinations UBS has determined that As per section of the Annual Report 2022, business this method, any excess of the acquisition-date amounts of the identifiable of the consideration date of the acquisition, with transaction costs
Allowances and provisions for expected credit losses	Allowances and provisions for expected credit The Group’s material accounting policies in respect of allowances and provisions for expected credit losses are set out in “Note 1a Material accounting policies, item 2g Allowances “Consolidated financial statements” business combination IFRS 9 expected credit loss (ECL) the ECL requirements that are determined to be credit impaired are treated as purchased credit-impaired instruments, on Consistent with the requirements to the instruments and a maximum 12-month ECL date fair value. Significant increase in credit risk For the not 30 days past due on which the contractual payments have not Default and credit impairment For the purposes of days past which material payments acquisition date.
Goodwill and other separately identifiable intangible assets	Goodwill and other separately identifiable The Group’s material accounting policies in respect of the accounting accounting policies, 2022. Separately from were not previously recognized in the financial statements is recognized on a straight-line basis over their estimated useful life. These assets are tested for impairment at the appropriate cash-generating unit level. Negative identifiable statement on the acquisition date.
Contingent liabilities recognized in a business combination	Contingent liabilities recognized in a business Contingent liabilities recognized in a are accordance with requirements for provisions as set out in IAS 37.

Basis of accounting (Tables)

Basis of accounting (Tables)	6 Months Ended
	Jun. 30, 2023
Foreign Exchange Rates [Line Items]
Currency translation rates	Closing exchange rate Average rate 1 As of For the quarter ended Year-to-date 30.6.23 31.3.23 31.12.22 30.6.22 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 1 CHF 1.12 1.09 1.08 1.05 1.11 1.08 1.04 1.11 1.06 1 EUR 1.09 1.08 1.07 1.05 1.09 1.08 1.06 1.09 1.09 1 GBP 1.27 1.23 1.21 1.22 1.27 1.22 1.25 1.24 1.29 100 JPY 0.69 0.75 0.76 0.74 0.71 0.75 0.76 0.73 0.80 1 Monthly income statement items of operations with a functional currency other than three month-end rates, weighted according to the income and expense volumes of all operations of the Group with the same functional currency for each month. Accordingly, the weighted average rates for the second quarter of 2023 and year-to-date June 2023 consider income and from the weighted average rates for the Group.

Accounting for the acquisitio_2

Accounting for the acquisition of Credit Suisse Group (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Business Combinations [Line items]
Determination of the purchase price consideration	Measure The Credit Suisse Group ordinary shares outstanding, 12 June 2023 Number of shares (m) 3,949 Exchange ratio (1 to 22.48) Ratio 0.04 UBS ordinary shares Number of shares (m) 176 UBS ordinary share price CHF 18.35 Purchase price consideration, before consideration of share-based compensation CHF m 3,223 Purchase price consideration, before consideration of share-based compensation awards 1 USD m 3,547 Impact of share-based compensation awards 2 USD m 162 Purchase price consideration, after consideration of share-based compensation awards USD m 3,710 Settlement of pre-existing relationships USD m 135 Provisional purchase price consideration, after consideration of pre-existing relationships USD m 3,845 Net cash and cash equivalents acquired with the Credit Suisse USD m 108,510 of which: cash and balances at central banks USD m 93,012 of which: amounts due from banks USD m 12,601 of which: money market paper USD m 2,897 1 The purchase weighted average cost USD 3.7 bn, based on the UBS on the date of acquisition.
Recognized amounts of indetifiable assets acquited and liabilities assumed	USD m Acquisition date value Purchase price consideration, after consideration of share-based compensation awards 3,710 The Credit Suisse Group net assets at fair value Assets Cash and balances at central banks 93,012 Amounts due from banks 13,590 Receivables from securities financing transactions 26,194 Cash collateral receivables on derivative instruments 20,878 Loans and advances to customers 261,839 Other financial assets measured at amortized cost 13,440 Total financial assets measured at amortized cost 1 428,954 Financial assets at fair value held for trading 35,046 Derivative financial instruments 62,162 Brokerage receivables 366 Financial assets at fair value not held for trading 61,305 Total financial assets measured at fair value through profit or loss 158,879 Financial assets measured at fair value through other comprehensive income 1 0 Investments in associates 1,657 Property, equipment and software 6,055 Intangible assets 1,287 Deferred tax assets 942 Other non-financial assets 6,892 Total assets 604,667 Liabilities Amounts due to banks 107,617 Payables from securities financing transactions 11,911 Cash collateral payables on derivative instruments 10,939 Customer deposits 183,119 Debt issued measured at amortized cost 110,491 Other financial liabilities measured at amortized cost 7,992 Total financial liabilities measured at amortized cost 432,070 Financial liabilities at fair value held for trading 5,711 Derivative financial instruments 66,091 Brokerage payables designated at fair value 316 Debt issued designated at fair value 44,909 Other financial liabilities designated at fair value 7,574 Total financial liabilities measured at fair value through profit or loss 124,601 Provisions and contingent liabilities 11,052 Other non-financial liabilities 3,888 Total liabilities 571,611 Non-controlling interests (285) Fair value of net assets acquired 32,771 Settlement of pre-existing relationships 135 Provisional negative goodwill resulting from the acquisition 28,925 1 Refer to Note 8 for information about credit quality of financial assets, including purchased credit-impaired
Pre-existing relationships	USD m Cash collateral receivables on derivative instruments 7 Derivative financial instruments 1,476 Debt instruments issued by the Credit Suisse Group and held 98 Total assets 1,581 Cash collateral payables on derivative instruments 572 Derivative financial instruments 813 Total liabilities 1,385 Treasury shares (61) Total equity (61) Total net pre-existing relationships 135

Segment reporting (Tables)

Segment reporting (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Operating Segments [Line Items]
Disclosure Of Operating Segments Explanatory	UBS business divisions and Group Functions (IFRS) – For the six month period ended 30 June 2023 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Group Functions Total For the six months ended 30 June 2023 Total revenues 9,528 2,681 1,001 4,241 (323) 17,128 Credit loss expense / (release) 20 26 0 8 0 54 Operating expenses 7,182 1,376 818 3,618 1,062 14,055 Operating profit / (loss) before tax 2,325 1,279 184 615 (1,385) 3,019 Tax expense / (benefit) 807 Net profit / (loss) 2,212 Credit Suisse business divisions and Corporate Center (US GAAP, 1 USD m Wealth Management Swiss Bank Asset Management Investment Bank Capital Release Unit Corporate Center Total For the month ended 30 June 2023 Total revenues 323 339 91 102 28 (140) 743 Credit loss expense / (release) 7 67 2 (3) 28 0 101 Operating expenses 427 264 103 715 198 100 1,807 Operating profit / (loss) before tax (111) 8 (14) (610) (198) (240) (1,165) 1 Represents the Credit Suisse divisions and Corporate Center has been adjusted to remove effects that overlap with amounts already accounted for as part of the acquisition, e.g., aligning fair value methodologies, changes in litigation provisions, software and goodwill impairment.
Reconciliation from segment results to UBS Group result	Reconciliation of aggregated segment results for UBS and Credit Suisse to UBS Group result – for the six month period ended 30 June 2023 USD m UBS business divisions and Group Functions (IFRS) Credit Suisse business divisions and Corporate Center (US GAAP, 1 Reconciliation from US GAAP to IFRS for Credit Suisse business divisions and Corporate Center Negative goodwill from the acquisition of Credit Suisse (IFRS) UBS Group (IFRS) For the six months ended 30 June 2023 Total revenues 17,128 743 413 18,284 Negative goodwill 28,925 28,925 Credit loss expense / (release) 54 101 623 778 Operating expenses 14,055 1,807 (166) 15,696 Operating profit / (loss) before tax 3,019 (1,165) (44) 28,925 30,735 Tax expense / (benefit) 820 Net profit / (loss) 29,915 1 Represents the Credit Suisse divisions and Corporate Center has been adjusted to remove effects that overlap with amounts already accounted for as part of the acquisition, e.g., aligning fair value methodologies, changes in litigation provisions, software and goodwill impairment. Reconciliation from segment results to UBS Group result – For the six month period ended 30 June 2022 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Group Functions UBS For the six months ended 30 June 2022 1 Total revenues 9,581 2,144 1,950 5,003 (379) 18,299 Credit loss expense / (release) (10) 57 0 (24) 2 25 Operating expenses 7,124 1,246 817 3,688 54 12,929 Operating profit / (loss) before tax 2,467 841 1,133 1,339 (436) 5,344 Tax expense / (benefit) 1,082 Net profit / (loss) 4,262 1 Refer to “Note 2 Segment reporting” in the “Consolidated financial statements” section of the Annual Report 2022 for more information about
Break-down of reconciling items from US GAAP to IFRS	Breakdown of reconciling items from US GAAP to IFRS for Credit Suisse business divisions and Corporate Center – For the month ended 30 June 2023 USD m Conversion from US GAAP to IFRS (excluding PPA accretion) of which: ECL adjustment of which: Share- based compensation other Accretion of Purchase Price Allocation (PPA) adjustments Total For the month ended 30 June 2023 Total revenues 44 44 369 413 Credit loss expense / (release) 623 623 0 623 Operating expenses (166) (130) (36) 0 (166) Operating profit / (loss) before tax (413) (623) 130 80 369 (44)
Reconciliation of segment assets to UBS Group total assets	Reconciliation of segment assets to UBS Group total assets – As at 30 June 2023 and as at 31 December 2022 USD m 30.6.23 31.12.22 UBS business divisions and Group Functions (IFRS) 1,142,419 1,104,364 Global Wealth Management 375,118 388,530 Personal & Corporate Banking 241,539 235,226 Asset Management 19,083 17,348 Investment Bank 363,004 391,320 Group Functions 143,676 71,940 Credit Suisse business divisions and Corporate Center (US GAAP) 544,367 Wealth Management 106,729 Swiss Bank 211,218 Asset Management 1,716 Investment Bank 96,575 Capital Release Unit 74,843 Corporate Center 53,286 Reconciliation from US GAAP to IFRS for Credit Suisse business divisions 56,125 of which: conversion from US GAAP to IFRS for derivative netting 69,705 of which: IFRS 3 PPA fair value adjustments on financial assets measured at amortized (8,428) of which: IFRS 3 PPA adjustments to other assets 1,972 UBS vs Credit Suisse eliminations (64,132) UBS Group total assets (IFRS) 1,678,780 1,104,364 1 Represents components of the IFRS 3 purchase price allocation adjustments.

Net interest income (Tables)

Net interest income (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Net Interest Income [Line Items]
Net interest income	For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Interest income from loans and deposits 1 6,247 4,106 1,886 10,353 3,546 Interest income from securities financing transactions measured 2 1,004 766 209 1,769 327 Interest income from other financial instruments measured 282 259 118 540 191 Interest income from debt instruments measured at fair 26 23 6 48 47 Interest income from derivative instruments designated as cash (457) (376) 160 (833) 413 Total interest income from financial instruments measured at amortized cost and fair income 7,101 4,777 2,380 11,878 4,525 Interest expense on loans and deposits 3 3,024 1,994 262 5,018 401 Interest expense on securities financing transactions measured 4 616 365 288 981 512 Interest expense on debt issued 2,205 1,429 498 3,635 893 Interest expense on lease liabilities 35 26 22 61 45 Total interest expense from financial instruments measured at amortized cost 5,880 3,814 1,070 9,695 1,852 Total net interest income from financial instruments measured at amortized cost and fair income 1,221 962 1,310 2,183 2,673 Net interest income from financial instruments measured at fair value through profit 493 425 355 918 763 Total net interest income 1,713 1,388 1,665 3,101 3,436 1 Consists of interest income from cash and balances at central banks, due to banks, payables from securities financing transactions. cash and balances at central banks, loans and interest, including fees, on receivables from securities financing transactions.

Net fee and commission income (

Net fee and commission income (Tables)	6 Months Ended
	Jun. 30, 2023
Net fee And Commission Income [Line Items]
Net fee and commission income	For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Underwriting fees 153 127 111 280 283 M&A and corporate finance fees 199 178 220 378 456 Brokerage fees 930 880 869 1,809 1,946 Investment fund fees 1,196 1,178 1,233 2,374 2,620 Portfolio management and related services 2,485 2,210 2,298 4,695 4,761 Other 719 479 492 1,199 993 Total fee and commission income 1 5,682 5,053 5,224 10,735 11,061 of which: recurring 3,808 3,413 3,593 7,221 7,453 of which: transaction-based 1,864 1,616 1,621 3,480 3,579 of which: performance-based 10 24 10 34 29 Fee and commission expense 507 447 450 954 934 Net fee and commission income 5,175 4,606 4,774 9,781 10,127 1 Reflects third-party fee and commission income 3,134 m for Global Wealth Management (first quarter of 3,145 m; second quarter of 2022: USD 3,281 m), USD 465 m for Personal & Corporate Banking 449 m; second quarter of 2022: USD 421 m), USD 673 m for Asset Management (first quarter 687 m; second quarter of 2022: USD 720 m), USD 731 m for the Investment Bank (first 770 m; second quarter of 2022: 801 m) and USD 4 m for Group Functions (first 3 m; second quarter of 2022: USD 1 m). Also includes third-party fee and commission income for the second quarter of 2023 from Credit Suisse of USD 675 m.

Personnel expenses (Tables)

Personnel expenses (Tables)	6 Months Ended
	Jun. 30, 2023
Personnel Expenses [Line Items]
Personnel expenses	For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Salaries and variable compensation 1 4,804 3,885 3,786 8,689 7,954 of which: variable compensation – financial advisors 2 1,110 1,111 1,122 2,222 2,342 Contractors 77 70 80 147 163 Social security 294 279 218 572 503 Post-employment benefit plans 261 236 199 497 448 Other personnel expenses 215 151 139 366 274 Total personnel expenses 5,651 4,620 4,422 10,271 9,343 1 Includes role-based compensation commitments with financial advisors entered into at the time of recruitment that are subject to vesting requirements.

General and administrative ex_2

General and administrative expenses (Tables)	6 Months Ended
	Jun. 30, 2023
General And Administrative Expenses [Line Items]
General and administrative expenses	For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Outsourcing costs 311 248 227 559 454 Technology costs 414 322 286 735 576 Consulting, legal and audit fees 351 181 144 532 272 Real estate and logistics costs 207 142 152 349 298 Market data services 151 113 101 264 207 Marketing and communication 89 52 61 140 101 Travel and entertainment 73 54 46 126 67 Litigation, regulatory and similar matters 1 69 721 221 790 278 Other 304 232 133 536 325 Total general and administrative expenses 1,968 2,065 1,370 4,033 2,578 1 Reflects the net increase in provisions for litigation, regulatory and similar matters recognized in the income statement. Refer to Note 15b for more information.

Expected credit loss measurem_2

Expected credit loss measurement (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Financial Assets [Line Item]
Key macro economic variables	Comparison of shock factors Baseline Key parameters 2022 2023 2024 Real GDP growth (annual percentage change) US 2.1 1.4 0.1 Eurozone 3.5 0.8 1.0 Switzerland 2.1 0.9 1.3 Unemployment rate (%, annual average) US 3.6 3.7 5.1 Eurozone 6.7 6.7 6.9 Switzerland 2.2 2.2 2.5 Fixed income: 10-year government bonds (%, Q4) USD 3.9 3.7 3.6 EUR 2.6 2.3 2.2 CHF 1.6 1.0 0.9 Real estate (annual percentage change, Q4) US 7.4 (1.9) 2.1 Eurozone 2.8 (1.2) 1.8 Switzerland 3.9 (0.5) (1.0) Economic scenarios and weights applied Assigned weights in % ECL scenario 30.6.23 31.3.23 30.6.22 Asset price inflation 0.0 0.0 0.0 Baseline 60.0 60.0 55.0 Severe Russia–Ukraine conflict scenario – – 25.0 Mild debt crisis 15.0 – – Stagflationary geopolitical crisis 25.0 25.0 – Global crisis – 15.0 20.0
Credit risk exposure	USD m 30.6.23 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Cash and balances at central banks 261,587 261,475 32 0 79 (10) 0 (10) 0 0 Loans and advances to banks 24,392 24,208 157 0 27 (11) (10) (1) 0 0 Receivables from securities financing transactions measured at amortized cost 86,538 86,538 0 0 0 (1) (1) 0 0 0 Cash collateral receivables on derivative instruments 54,314 54,314 0 0 0 0 0 0 0 0 Loans and advances to customers 651,770 630,086 17,204 1,850 2,630 (1,369) (613) (173) (556) (28) of which: Private clients with mortgages 255,322 244,894 9,358 783 287 (173) (61) (87) (23) (2) of which: Real estate financing 92,890 88,669 4,088 10 122 (63) (41) (23) 0 0 of which: Large corporate clients 32,162 28,883 1,292 387 1,601 (417) (207) (29) (157) (24) of which: SME clients 29,595 27,649 1,293 436 218 (314) (91) (21) (203) 0 of which: Lombard 168,713 168,596 0 42 75 (32) (15) 0 (17) 0 of which: Credit cards 1,939 1,502 403 34 0 (39) (8) (11) (21) 0 of which: Commodity trade finance 4,950 4,917 0 15 19 (124) (20) 0 (104) 0 of which: Ship / aircraft financing 9,478 9,234 166 22 56 (69) (67) (2) 0 0 of which: Consumer financing 3,140 3,056 0 0 84 (30) (30) 0 0 0 Other financial assets measured at amortized cost 64,928 64,364 377 153 35 (109) (37) (7) (62) (3) of which: Loans to financial advisors 2,588 2,287 174 126 0 (55) (6) (2) (47) 0 Total financial assets measured at amortized cost 1,143,528 1,120,985 17,770 2,003 2,770 (1,501) (662) (190) (618) (31) Financial assets measured at fair value through other comprehensive income 2,217 2,217 0 0 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 1,145,746 1,123,203 17,770 2,003 2,770 (1,501) (662) (190) (618) (31) of which: Credit Suisse 2 431,559 428,684 0 104 2,770 (540) (457) 0 (52) (31) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Guarantees 38,463 37,345 921 118 79 (66) (40) (7) (17) (1) of which: Large corporate clients 8,358 7,553 690 79 36 (19) (16) (2) 0 0 of which: SME clients 4,170 3,928 167 38 37 (20) (10) (1) (9) 2 of which: Financial intermediaries and hedge funds 12,874 12,859 15 0 0 (11) (8) (3) 0 0 of which: Lombard 4,752 4,752 0 1 0 (1) 0 0 (1) 0 of which: Commodity trade finance 2,200 2,200 0 0 0 (1) (1) 0 0 0 Irrevocable loan commitments 124,281 121,789 2,076 78 338 (225) (186) (38) (2) 0 of which: Large corporate clients 77,160 75,044 1,731 52 333 (198) (165) (31) (2) 0 Forward starting reverse repurchase and securities borrowing agreements 4,972 4,972 0 0 0 0 0 0 0 0 Unconditionally revocable loan commitments 168,556 166,754 1,739 63 0 (74) (65) (9) 0 0 of which: Real estate financing 17,107 16,850 258 0 0 (12) (12) 0 0 0 of which: Large corporate clients 4,790 4,624 158 7 0 (6) (3) (3) 0 0 of which: SME clients 24,601 24,381 179 40 0 (42) (39) (3) 0 0 of which: Lombard 82,491 82,491 0 1 0 0 0 0 0 0 of which: Credit cards 9,762 9,274 484 4 0 (7) (6) (2) 0 0 Irrevocable committed prolongation of existing loans 4,362 4,353 7 2 0 (3) (2) 0 0 0 Total off-balance sheet financial instruments and other credit lines 340,634 335,213 4,743 261 417 (367) (293) (54) (19) (1) Total allowances and provisions (1,868) (955) (244) (637) (32) of which: Credit Suisse 2 225,021 224,604 0 0 417 (731) (648) 0 (52) (32) 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective ECL Credit Suisse Group. USD m 31.3.23 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Cash and balances at central banks 144,183 144,144 39 0 (12) 0 (12) 0 Loans and advances to banks 14,901 14,857 45 0 (6) (5) 0 0 Receivables from securities financing transactions 60,010 60,010 0 0 (2) (2) 0 0 Cash collateral receivables on derivative instruments 32,726 32,726 0 0 0 0 0 0 Loans and advances to customers 390,130 371,966 16,573 1,591 (804) (152) (180) (472) of which: Private clients with mortgages 159,409 149,701 8,999 709 (171) (43) (103) (25) of which: Real estate financing 48,672 45,159 3,504 8 (42) (18) (24) 0 of which: Large corporate clients 12,943 11,216 1,408 320 (139) (20) (16) (102) of which: SME clients 13,610 11,781 1,437 392 (243) (29) (25) (189) of which: Lombard 128,960 128,903 0 57 (26) (9) 0 (17) of which: Credit cards 1,831 1,418 381 32 (37) (8) (10) (20) of which: Commodity trade finance 3,053 3,022 20 10 (96) (5) 0 (91) Other financial assets measured at amortized cost 49,179 48,661 372 146 (84) (17) (6) (61) of which: Loans to financial advisors 2,571 2,323 121 127 (54) (6) (2) (46) Total financial assets measured at amortized cost 691,130 672,365 17,028 1,737 (908) (176) (198) (534) Financial assets measured at fair value through other comprehensive income 2,241 2,241 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 693,370 674,606 17,028 1,737 (908) (176) (198) (534) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Guarantees 22,670 21,670 887 113 (54) (13) (8) (33) of which: Large corporate clients 3,476 2,733 668 75 (19) (2) (3) (14) of which: SME clients 1,368 1,197 133 38 (11) (1) (1) (9) of which: Financial intermediaries and hedge funds 13,076 13,037 38 0 (11) (8) (4) 0 of which: Lombard 2,171 2,170 0 1 (1) 0 0 (1) of which: Commodity trade finance 1,815 1,815 0 0 (1) (1) 0 0 Irrevocable loan commitments 39,775 37,261 2,400 114 (113) (57) (56) 0 of which: Large corporate clients 23,294 21,263 1,948 83 (95) (47) (49) 0 Forward starting reverse repurchase and securities borrowing agreements 4,748 4,748 0 0 0 0 0 0 Unconditionally revocable loan commitments 41,071 39,307 1,724 40 (44) (36) (8) 0 of which: Real estate financing 8,226 8,037 188 0 (6) (6) 0 0 of which: Large corporate clients 4,496 4,284 205 7 (5) (3) (2) 0 of which: SME clients 4,898 4,656 214 28 (21) (18) (3) 0 of which: Lombard 8,166 8,165 0 1 0 0 0 0 of which: Credit cards 9,567 9,078 486 3 (7) (5) (2) 0 of which: Commodity trade finance 370 370 0 0 0 0 0 0 Irrevocable committed prolongation of existing loans 4,161 4,126 33 2 (3) (3) 0 0 Total off-balance sheet financial instruments and other credit lines 112,425 107,112 5,044 269 (214) (108) (72) (33) Total allowances and provisions (1,121) (284) (271) (567) 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective USD m 31.12.22 Carrying amount 1 ECL allowances Financial instruments measured at amortized cost Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Cash and balances at central banks 169,445 169,402 44 0 (12) 0 (12) 0 Loans and advances to banks 14,792 14,792 1 0 (6) (5) (1) 0 Receivables from securities financing transactions 67,814 67,814 0 0 (2) (2) 0 0 Cash collateral receivables on derivative instruments 35,032 35,032 0 0 0 0 0 0 Loans and advances to customers 387,220 370,095 15,587 1,538 (783) (129) (180) (474) of which: Private clients with mortgages 156,930 147,651 8,579 699 (161) (27) (107) (28) of which: Real estate financing 46,470 43,112 3,349 9 (41) (17) (23) 0 of which: Large corporate clients 12,226 10,733 1,189 303 (130) (24) (14) (92) of which: SME clients 13,903 12,211 1,342 351 (251) (26) (22) (203) of which: Lombard 132,287 132,196 0 91 (26) (9) 0 (17) of which: Credit cards 1,834 1,420 382 31 (36) (7) (10) (19) of which: Commodity trade finance 3,272 3,261 0 11 (96) (6) 0 (90) Other financial assets measured at amortized cost 2 53,264 52,704 413 147 (86) (17) (6) (63) of which: Loans to financial advisors 2,611 2,357 128 126 (59) (7) (2) (51) Total financial assets measured at amortized cost 727,568 709,839 16,044 1,685 (889) (154) (199) (537) Financial assets measured at fair value through other comprehensive income 2 2,239 2,239 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 729,807 712,078 16,044 1,685 (889) (154) (199) (537) Total exposure ECL provisions Off-balance sheet (in scope of ECL) Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 3 Guarantees 22,167 19,805 2,254 108 (48) (13) (9) (26) of which: Large corporate clients 3,663 2,883 721 58 (26) (2) (3) (21) of which: SME clients 1,337 1,124 164 49 (5) (1) (1) (3) of which: Financial intermediaries and hedge funds 11,833 10,513 1,320 0 (12) (8) (4) 0 of which: Lombard 2,376 2,376 0 1 (1) 0 0 (1) of which: Commodity trade finance 2,121 2,121 0 0 (1) (1) 0 0 Irrevocable loan commitments 39,996 37,531 2,341 124 (111) (59) (52) 0 of which: Large corporate clients 23,611 21,488 2,024 99 (93) (49) (45) 0 Forward starting reverse repurchase and securities borrowing agreements 3,801 3,801 0 0 0 0 0 0 Unconditionally revocable loan commitments 41,390 39,521 1,833 36 (40) (32) (8) 0 of which: Real estate financing 8,711 8,528 183 0 (6) (6) 0 0 of which: Large corporate clients 4,578 4,304 268 5 (4) (1) (2) 0 of which: SME clients 4,723 4,442 256 26 (19) (16) (3) 0 of which: Lombard 7,855 7,854 0 1 0 0 0 0 of which: Credit cards 9,390 8,900 487 3 (7) (5) (2) 0 of which: Commodity trade finance 327 327 0 0 0 0 0 0 Irrevocable committed prolongation of existing loans 4,696 4,600 94 2 (2) (2) 0 0 Total off-balance sheet financial instruments and other credit lines 112,050 105,258 6,522 270 (201) (106) (69) (26) Total allowances and provisions (1,091) (259) (267) (564) 1 The carrying amount of financial assets Financial assets measured at fair value through other comprehensive income was reclassified to Other financial assets measured USD m 30.6.23 Carrying amount 1 ECL allowances Loans and advances to customers Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 3 PCI Loans and advances to customers 262,025 259,291 0 104 2,630 (511) (431) 0 (52) (28) of which: Private clients with mortgages 91,763 91,450 0 25 287 (18) (17) 0 0 (2) of which: Real estate financing 42,835 42,710 0 4 122 (20) (20) 0 0 0 of which: Large corporate clients 18,718 17,090 0 27 1,601 (239) (170) 0 (44) (24) of which: SME clients 17,114 16,873 0 23 218 (59) (59) 0 0 0 of which: Lombard 44,202 44,127 0 0 75 (6) (6) 0 0 0 of which: Commodity trade finance 2,757 2,738 0 0 19 (14) (14) 0 0 0 of which: Financial intermediaries and hedge funds 18,910 18,904 0 5 2 (34) (34) 0 0 0 of which: Sovereigns and public non-profit organizations 1,153 1,152 0 0 1 (4) (4) 0 0 0 of which: Ship / aircraft financing 8,033 7,977 0 0 56 (64) (64) 0 0 0 of which: Consumer financing 3,140 3,056 0 0 84 (30) (30) 0 0 0 1 The carrying amount of financial assets measured at amortized cost represents the total gross exposure net of the respective
Coverage ratios	Coverage ratios for core loan portfolio 30.6.23 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 1&2 Stage 3 PCI Private clients with mortgages 255,495 244,955 9,445 806 289 7 2 92 6 291 53 Real estate financing 92,953 88,710 4,111 11 122 7 5 55 7 71 0 Total real estate lending 348,448 333,665 13,556 817 410 7 3 80 6 288 36 Large corporate clients 32,579 29,090 1,320 544 1,625 128 71 217 78 2,894 148 SME clients 29,909 27,740 1,313 639 217 105 33 157 38 3,180 0 Total corporate lending 62,488 56,830 2,634 1,183 1,841 117 52 187 58 3,049 126 Lombard 168,745 168,611 0 59 75 2 1 0 1 2,872 24 Credit cards 1,978 1,510 413 55 0 199 53 255 97 3,821 0 Commodity trade finance 5,074 4,937 0 118 19 244 41 351 41 8,769 5 Ship / aircraft financing 9,542 9,298 166 22 56 72 72 111 73 0 1 Consumer financing 3,170 3,086 0 0 84 96 98 0 98 222 32 Other loans and advances to customers 55,139 54,019 773 174 173 21 14 47 15 1,740 156 Loans to financial advisors 2,643 2,293 177 173 0 208 24 140 33 2,707 0 Total other lending 246,291 243,754 1,529 602 406 19 9 121 10 3,636 78 Total 1 657,227 634,249 17,719 2,602 2,658 22 10 99 12 2,318 105 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 PCI Total Stage 1 Stage 2 Stage 1&2 Stage 3 PCI Private clients with mortgages 9,284 8,950 324 11 0 4 3 22 4 60 0 Real estate financing 18,031 17,751 280 0 0 7 7 0 7 0 0 Total real estate lending 27,315 26,701 603 11 0 6 6 0 6 60 0 Large corporate clients 90,393 87,307 2,580 138 369 25 21 141 25 132 5 SME clients 32,494 31,955 400 95 43 23 18 257 21 994 0 Total corporate lending 122,887 119,262 2,980 233 412 24 20 156 24 482 0 Lombard 91,235 91,234 0 1 0 0 0 0 0 6,718 0 Credit cards 9,763 9,274 484 4 0 7 6 37 8 0 0 Commodity trade finance 5,833 5,833 0 0 0 6 6 0 6 0 0 Ship / aircraft financing 1,731 1,731 0 0 0 4 3 0 4 0 0 Consumer financing 301 301 0 0 0 34 34 0 34 0 0 Financial intermediaries and hedge funds 46,786 46,406 380 0 0 3 3 90 3 0 0 Other off-balance sheet commitments 29,854 29,541 296 11 6 8 4 95 5 6,408 4,244 Total other lending 185,502 184,320 1,160 17 6 3 2 71 2 4,774 4,215 Total 2 335,704 330,283 4,743 261 417 11 9 114 10 737 22 Total on- and off-balance sheet 3 992,931 964,532 22,462 2,862 3,075 18 9 103 12 2,173 94 1 Includes Loans and advances to customers and Loans to financial advisors which are presented on the balance sheet line Other repurchase and securities borrowing agreements. Coverage ratios for core loan portfolio 31.3.23 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 159,580 149,744 9,102 734 11 3 113 9 344 Real estate financing 48,714 45,177 3,529 8 9 4 69 9 22 Total real estate lending 208,294 194,921 12,631 742 10 3 101 9 341 Large corporate clients 13,082 11,236 1,424 422 106 18 115 29 2,424 SME clients 13,853 11,811 1,461 581 175 25 168 41 3,253 Total corporate lending 26,936 23,047 2,886 1,003 142 22 142 35 2,904 Lombard 128,985 128,912 0 74 2 1 0 1 2,286 Credit cards 1,868 1,426 391 52 201 56 255 99 3,793 Commodity trade finance 3,149 3,028 20 101 305 18 11 17 9,001 Other loans and advances to customers 21,702 20,785 825 92 23 9 24 10 3,117 Loans to financial advisors 2,626 2,329 123 174 206 26 145 32 2,659 Total other lending 158,330 156,479 1,360 492 17 3 101 4 4,109 Total 1 393,560 374,447 16,876 2,237 22 4 108 9 2,319 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 6,377 6,163 212 3 6 5 28 6 340 Real estate financing 9,298 9,101 197 0 7 8 0 7 0 Total real estate lending 15,675 15,263 409 3 6 7 0 6 340 Large corporate clients 31,375 28,390 2,821 165 38 18 190 34 830 SME clients 7,674 7,124 470 80 55 30 245 44 1,114 Total corporate lending 39,049 35,514 3,290 245 41 21 198 36 923 Lombard 12,456 12,455 0 1 1 1 0 1 0 Credit cards 9,567 9,078 486 3 8 6 36 8 0 Commodity trade finance 2,187 2,187 0 0 4 4 0 4 0 Financial intermediaries and hedge funds 17,260 16,781 479 0 8 5 80 8 0 Other off-balance sheet commitments 11,483 11,086 380 17 18 7 66 9 0 Total other lending 52,953 51,587 1,345 22 8 5 60 6 0 Total 2 107,677 102,364 5,044 269 20 11 143 17 1,232 Total on- and off-balance sheet 3 501,237 476,811 21,920 2,506 21 6 116 10 2,202 1 Includes Loans and advances repurchase and securities borrowing agreements. Coverage ratios for core loan portfolio 31.12.22 Gross carrying amount (USD m) ECL coverage (bps) On-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 157,091 147,678 8,686 727 10 2 123 9 381 Real estate financing 46,511 43,129 3,372 9 9 4 70 9 232 Total real estate lending 203,602 190,807 12,059 736 10 2 108 9 379 Large corporate clients 12,356 10,757 1,204 395 105 22 120 32 2,325 SME clients 14,154 12,237 1,364 553 177 22 161 36 3,664 Total corporate lending 26,510 22,994 2,567 949 144 22 142 34 3,106 Lombard 132,313 132,205 0 108 2 1 0 1 1,580 Credit cards 1,869 1,427 393 50 190 46 256 91 3,779 Commodity trade finance 3,367 3,266 0 101 285 18 0 18 8,901 Other loans and advances to customers 20,342 19,525 748 68 21 7 38 8 3,769 Loans to financial advisors 2,670 2,364 130 176 221 28 124 33 2,870 Total other lending 160,561 158,787 1,270 503 16 3 114 4 4,016 Total 1 390,672 372,588 15,896 2,188 22 4 114 8 2,398 Gross exposure (USD m) ECL coverage (bps) Off-balance sheet Total Stage 1 Stage 2 Stage 3 Total Stage 1 Stage 2 Stage 1&2 Stage 3 Private clients with mortgages 6,535 6,296 236 3 5 4 18 4 1,183 Real estate financing 10,054 9,779 275 0 6 7 0 6 0 Total real estate lending 16,589 16,075 511 3 6 6 2 6 1,288 Large corporate clients 32,126 28,950 3,013 163 38 18 165 32 1,263 SME clients 7,122 6,525 499 98 47 30 214 43 304 Total corporate lending 39,247 35,475 3,513 260 40 20 172 34 903 Lombard 12,919 12,918 0 1 2 1 0 1 0 Credit cards 9,390 8,900 487 3 7 5 36 7 0 Commodity trade finance 2,459 2,459 0 0 3 3 0 3 0 Financial intermediaries and hedge funds 15,841 14,177 1,664 0 9 7 25 9 0 Other off-balance sheet commitments 11,803 11,454 346 3 11 8 68 9 0 Total other lending 52,412 49,907 2,498 7 7 5 33 6 0 Total 2 108,249 101,457 6,522 270 19 10 106 16 980 Total on- and off-balance sheet 3 498,921 474,045 22,418 2,458 21 5 112 10 2,242 1 Includes Loans and advances repurchase and securities borrowing agreements.
Credit loss expense recovery	Credit loss expense / (release) USD m Stages 1 and 2 Stage 3 Purchased credit-impaired (PCI) Total For the quarter ended 30.6.23 Global Wealth Management (4) 9 5 Personal & Corporate Banking (11) 21 10 Asset Management 0 0 0 Investment Bank 5 (4) 1 Group Functions 0 0 0 Subtotal UBS (10) 26 16 Wealth Management (Credit Suisse) 143 0 7 149 Swiss Bank (Credit Suisse) 217 7 0 224 Asset Management (Credit Suisse) 1 0 0 1 Investment Bank (Credit Suisse) 189 0 12 200 Capital Release Unit (Credit Suisse) 104 44 0 148 Corporate Center (Credit Suisse) 2 0 0 2 Subtotal Credit Suisse 654 51 19 724 1 Total 644 77 19 740 For the quarter ended 31.3.23 Global Wealth Management 15 0 15 Personal & Corporate Banking 15 0 16 Asset Management 0 0 0 Investment Bank (5) 12 7 Group Functions 0 0 0 Total 26 12 38 For the quarter ended 30.6.22 Global Wealth Management (8) 6 (3) Personal & Corporate Banking 26 8 35 Asset Management 0 0 0 Investment Bank (2) (26) (28) Group Functions 0 2 2 Total 16 (9) 7 1 Includes credit loss expense of USD 101 m included into the segment reporting for Credit Suisse business divisions and Corporate Center (US GAAP, 623 m credit loss expense to reconcile Credit Suisse business divisions and Corporate Center to IFRS. Please refer also to Note 3.

Fair value measurement (Tables)

Fair value measurement (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Measurement [Line Items]
Disclosure Of Fair Value Measurement Of Assets Explanatory	Determination of fair values from quoted market 1 30.6.23 31.3.23 31.12.22 USD m Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial assets measured at fair value on a recurring basis Financial assets at fair value held for trading 117,863 30,122 3,113 151,098 104,793 11,865 1,099 117,757 96,241 10,138 1,488 107,866 of which: Equity instruments 96,546 1,330 454 98,329 87,723 295 177 88,194 83,074 789 126 83,988 of which: Government bills / bonds 13,586 11,865 67 25,518 8,902 1,534 23 10,460 5,496 950 18 6,464 of which: Investment fund units 6,123 773 146 7,043 7,187 536 10 7,733 6,673 596 61 7,330 of which: Corporate and municipal bonds 1,592 11,310 995 13,897 977 7,449 442 8,867 976 6,363 541 7,880 of which: Loans 0 2,854 1,045 3,899 0 1,812 329 2,141 0 1,179 628 1,807 of which: Asset-backed securities 15 1,970 406 2,391 4 239 118 360 22 261 114 397 Derivative financial instruments 1,072 181,900 2,978 185,949 879 112,064 1,309 114,251 769 147,875 1,464 150,108 of which: Foreign exchange 576 73,686 425 74,686 515 51,731 3 52,249 575 84,881 2 85,458 of which: Interest rate 0 62,950 761 63,711 0 36,339 398 36,737 0 39,345 460 39,805 of which: Equity / index 1 38,544 1,108 39,652 1 21,180 578 21,759 1 21,542 653 22,195 of which: Credit 0 4,802 580 5,382 0 944 309 1,253 0 719 318 1,038 of which: Commodities 7 1,686 28 1,720 0 1,780 20 1,800 0 1,334 30 1,365 Brokerage receivables 0 21,537 0 21,537 0 21,025 0 21,025 0 17,576 0 17,576 Financial assets at fair value not held for trading 31,358 71,889 15,358 118,605 32,279 30,713 3,834 66,826 26,572 29,498 3,725 59,796 of which: Financial assets for unit-linked investment contracts 14,802 171 0 14,973 14,004 97 0 14,101 13,071 1 0 13,072 of which: Corporate and municipal bonds 61 12,673 359 13,093 86 13,601 241 13,928 35 14,101 230 14,366 of which: Government bills / bonds 16,144 3,976 0 20,120 17,824 3,140 0 20,965 13,103 3,638 0 16,741 of which: Loans 0 10,395 7,861 18,256 0 3,706 810 4,516 0 3,602 736 4,337 of which: Securities financing transactions 0 43,798 109 43,907 0 9,670 108 9,779 0 7,590 114 7,704 of which: Auction rate securities 0 0 1,321 1,321 0 0 1,321 1,321 0 0 1,326 1,326 of which: Investment fund units 321 516 683 1,519 295 498 288 1,081 307 566 190 1,063 of which: Equity instruments 29 227 3,092 3,348 70 0 879 949 57 0 792 849 Financial assets measured at fair value through other comprehensive income on Financial assets measured at fair value through other comprehensive income 65 2,152 0 2,217 60 2,181 0 2,241 57 2,182 0 2,239 of which: Commercial paper and certificates of deposit 0 1,926 0 1,926 0 1,921 0 1,921 0 1,878 0 1,878 of which: Corporate and municipal bonds 65 217 0 282 60 233 0 293 57 278 0 335 Non-financial assets measured at fair value on a recurring basis Precious metals and other physical commodities 5,794 0 0 5,794 4,506 0 0 4,506 4,471 0 0 4,471 Non-financial assets measured at fair value on a non-recurring basis Other non-financial assets 2 0 1 89 90 0 0 109 109 0 0 110 110 Total assets measured at fair value 156,152 307,601 21,538 485,291 142,516 177,847 6,351 326,714 128,110 207,269 6,788 342,166 of which: Credit Suisse 3 15,168 121,363 14,769 151,301
Disclosure Of Fair Value Measurement Of Liabilities Explanatory	Determination of fair values from quoted market 1 30.6.23 31.3.23 31.12.22 USD m Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial liabilities measured at fair value on a recurring basis Financial liabilities at fair value held for trading 33,231 6,983 150 40,364 28,332 5,941 101 34,374 23,578 5,823 114 29,515 of which: Equity instruments 22,984 311 83 23,378 19,411 370 58 19,839 16,521 352 78 16,951 of which: Corporate and municipal bonds 32 5,639 61 5,731 33 4,610 38 4,681 36 4,643 27 4,707 of which: Government bills / bonds 9,159 957 0 10,115 7,919 728 0 8,647 5,880 706 1 6,587 of which: Investment fund units 1,057 46 3 1,106 969 204 3 1,176 1,141 84 3 1,229 Derivative financial instruments 1,007 186,797 5,343 193,147 967 113,051 2,095 116,113 640 152,582 1,684 154,906 of which: Foreign exchange 591 75,856 132 76,580 529 52,706 33 53,267 587 87,897 24 88,508 of which: Interest rate 0 61,690 355 62,045 0 34,317 360 34,677 0 37,429 116 37,545 of which: Equity / index 0 41,569 3,714 45,284 1 23,207 1,365 24,573 0 24,963 1,184 26,148 of which: Credit 2 5,629 605 6,235 0 1,057 286 1,343 0 920 279 1,199 of which: Commodities 6 1,685 37 1,728 0 1,592 33 1,625 0 1,309 52 1,361 Financial liabilities designated at fair value on a recurring basis Brokerage payables designated at fair value 0 43,852 0 43,852 0 43,911 0 43,911 0 45,085 0 45,085 Debt issued designated at fair value 0 105,951 19,099 125,050 0 66,748 10,485 77,233 0 63,111 10,527 73,638 Other financial liabilities designated at fair value 0 33,097 3,025 36,122 0 25,180 579 25,758 0 29,547 691 30,237 of which: Financial liabilities related to unit- linked investment contracts 0 15,124 0 15,124 0 14,243 0 14,243 0 13,221 0 13,221 of which: Securities financing transactions 0 13,295 0 13,295 0 9,707 0 9,707 0 15,333 0 15,333 of which: Over-the-counter debt instruments and others 0 4,678 3,025 7,703 0 1,230 579 1,809 0 993 691 1,684 Total liabilities measured at fair value 34,238 376,680 27,616 438,534 29,299 254,831 13,260 297,390 24,219 296,148 13,015 333,381 of which: Credit Suisse 3 4,442 103,921 13,284 121,646 1 Bifurcated embedded derivatives are presented on the same balance sheet lines 2 Other non-financial assets primarily consist of properties and other for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Deferred Day-One Profit Or Loss Explanatory	Deferred day-1 profit or loss reserves For the quarter ended Year-to-date USD m 30.6.23 31.3.23 30.6.22 30.6.23 30.6.22 Reserve balance at the beginning of the period 399 422 425 422 418 Profit / (loss) deferred on new transactions 78 91 86 169 161 (Profit) / loss recognized in the income statement (75) (113) (58) (188) (127) Foreign currency translation (1) 0 (1) (1) (1) Reserve balance at the end of the period 402 399 451 402 451
Disclosure Of Valuation Adjustment Reserves On The Balance Sheet Explanatory	Other valuation adjustment reserves on the As of USD m 30.6.23 31.3.23 31.12.22 Own credit adjustments on financial liabilities designated at fair value 142 624 556 of which: debt issued designated at fair value 46 495 453 of which: other financial liabilities designated at fair value 96 129 103 Credit valuation adjustments (151) (33) (33) Funding / Debit valuation adjustments (172) (101) (46) Other valuation adjustments (2,911) (801) (839) of which: liquidity (1,905) (299) (311) of which: model uncertainty (1,005) (502) (529) adjustments.
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurement Of Assets And Liabilities Explanatory	Valuation techniques and inputs Fair value Significant unobservable input(s) 1 Range of inputs Assets Liabilities Valuation technique(s) 30.6.23 31.12.22 USD bn 30.6.23 31.12.22 30.6.23 31.12.22 low high weighted average 2 low high weighted average 2 unit 1 Financial assets and liabilities at fair value held for Corporate and municipal bonds 1.4 0.8 0.1 0.0 Relative value to market comparable Bond price equivalent 4 101 94 14 112 85 points Discounted expected cash flows Discount margin 200 391 376 412 412 basis points Traded loans, measured at fair value, loan commitments and guarantees 9.2 1.7 0.0 0.0 Relative value to market comparable Loan price equivalent 0 140 87 30 100 97 points Discounted expected cash flows Credit spread 60 3,263 347 200 200 200 basis points Market comparable and securitization model Credit spread 165 1,544 349 145 1,350 322 basis points Option model Gap risk 5 0 2 0 % Auction rate securities 1.3 1.3 Discounted expected cash flows Credit spread 115 209 156 115 196 144 basis points Investment fund units 3 0.8 0.3 0.0 0.0 Relative value to market comparable Net asset value Equity instruments 3 3.5 0.9 0.1 0.1 Relative value to market comparable Price Debt issued designated at fair value 4 19.1 10.5 Other financial liabilities designated at fair value 3.0 0.7 Discounted expected cash flows Funding spread 25 175 23 175 basis points Derivative financial instruments Interest rate 0.8 0.5 0.3 0.1 Option model Volatility of interest rates 55 161 75 143 basis points Volatility of inflation 0 6 % IR-to-IR correlation (1) 100 % Credit 0.6 0.3 0.7 0.3 Discounted expected cash flows Credit spreads 5 538 9 565 basis points Bond price equivalent 3 281 3 277 points Recovery rates 6 1 100 % Option model Credit spreads 17 707 basis points Equity / index 1.1 0.7 3.8 1.2 Option model Equity dividend yields 0 10 0 20 % Volatility of equity stocks, equity and other indices 4 138 4 120 % Equity-to-FX correlation (40) 84 (29) 84 % Equity-to-equity correlation (25) 100 (25) 100 % 1 The ranges of significant unobservable inputs are represented in points, percentages and basis points. most non-derivative financial instruments and were calculated designated at fair value 4 Debt issued designated at fair value primarily consists of UBS structured notes, which include variable maturity notes with various equity and foreign exchange underlying risks, as well as rates-linked and credit-linked notes, all of instruments are presented in 6 Recovery rate reflects the estimated recovery that will be realized given expected defaults, they may vary
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities Explanatory	Sensitivity of fair value measurements to changes 1 30.6.23 31.3.23 31.12.22 USD m Favorable changes Unfavorable changes Favorable changes Unfavorable changes Favorable changes Unfavorable changes Traded loans, loans measured at fair value, loan commitments and guarantees 325 (234) 12 (13) 19 (12) Securities financing transactions 37 (37) 27 (29) 33 (37) Auction rate securities 44 (44) 45 (45) 46 (46) Asset-backed securities 48 (47) 29 (27) 27 (27) Equity instruments 483 (397) 188 (164) 183 (161) Investment fund units 127 (129) 29 (30) 19 (21) Interest rate derivatives, net 221 (111) 20 (13) 18 (12) Credit derivatives, net 75 (67) 3 (5) 3 (4) Foreign exchange derivatives, net 6 (6) 4 (5) 10 (5) Equity / index derivatives, net 646 (614) 371 (338) 361 (330) Other 296 (292) 63 (74) 20 (41) Total 2,308 (1,978) 791 (744) 738 (696) of which: Credit Suisse 2 1,578 (1,312) 1 Sensitivity of issued and over-the-counter debt instruments is reported with the equivalent derivative
Disclosure Of Level 3 Of Fair Value Of Financial Instruments Explanatory	Movements of Level 3 instruments USD bn Balance at the beginning of the period Credit Suisse Level 3 assets and liabilities acquired Net gains / losses included in compre- hensive income 1 of which: related to instruments held at the end of the period Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Foreign currency translation Balance at the end of the period For the six months ended 30 June 2023 2 Financial assets at fair value held for trading 1.5 2.2 (0.5) (0.5) 0.5 (1.1) 0.7 0.0 0.1 (0.3) 0.0 3.1 of which: Investment fund units 0.1 0.1 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.0 (0.0) (0.0) 0.1 of which: Corporate and municipal bonds 0.5 1.1 (0.4) (0.4) 0.3 (0.6) 0.0 0.0 0.0 (0.0) 0.0 1.0 of which: Loans 0.6 0.2 0.0 0.0 0.0 (0.3) 0.7 0.0 0.0 (0.2) 0.0 1.0 Derivative financial instruments – assets 1.5 1.4 (0.1) (0.1) 0.0 (0.0) 0.5 (0.3) 0.1 (0.2) 0.0 3.0 of which: Interest rate 0.5 0.2 0.1 0.1 0.0 0.0 0.1 (0.0) 0.0 (0.0) (0.0) 0.8 of which: Equity / index 0.7 0.5 (0.1) (0.1) 0.0 (0.0) 0.3 (0.2) 0.0 (0.2) (0.0) 1.1 of which: Credit 0.3 0.2 (0.0) (0.0) 0.0 (0.0) 0.1 (0.0) 0.0 (0.0) 0.0 0.6 Financial assets at fair value not held for trading 3.7 11.6 (0.1) (0.2) 0.7 (0.5) 0.0 (0.0) 0.1 (0.1) 0.0 15.4 of which: Loans 0.7 7.1 (0.1) (0.1) 0.4 (0.1) 0.0 (0.0) 0.0 (0.1) (0.0) 7.9 of which: Auction rate securities 1.3 0.0 0.0 0.0 0.0 (0.0) 0.0 0.0 0.0 0.0 0.0 1.3 of which: Equity instruments 0.8 2.1 (0.0) (0.0) 0.2 (0.1) 0.0 0.0 0.0 0.0 0.0 3.1 Derivative financial instruments – liabilities 1.7 2.8 0.6 0.5 0.0 (0.0) 0.8 (0.4) 0.1 (0.3) 0.0 5.3 of which: Interest rate 0.1 0.2 0.0 0.0 0.0 0.0 0.1 (0.1) 0.0 0.0 0.0 0.4 of which: Equity / index 1.2 1.7 0.5 0.5 0.0 (0.0) 0.6 (0.3) 0.0 (0.1) 0.0 3.7 of which: Credit 0.3 0.3 0.0 0.0 0.0 (0.0) 0.1 (0.0) 0.1 (0.2) (0.0) 0.6 Debt issued designated at fair value 10.5 8.5 0.4 0.4 0.0 0.0 2.4 (2.5) 0.6 (0.8) (0.0) 19.1 Other financial liabilities designated at fair value 0.7 2.1 0.0 0.0 0.0 0.0 0.2 (0.1) 0.0 (0.0) (0.0) 3.0 For the six months ended 30 June 2022 Financial assets at fair value held for trading 2.3 (0.1) (0.2) 0.3 (1.3) 1.0 0.0 0.1 (0.3) (0.0) 1.9 of which: Investment fund units 0.0 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.0 (0.0) (0.0) 0.0 of which: Corporate and municipal bonds 0.6 (0.0) (0.0) 0.2 (0.1) 0.0 0.0 0.0 (0.0) (0.0) 0.7 of which: Loans 1.4 (0.1) (0.1) 0.0 (1.2) 1.0 0.0 0.0 (0.2) (0.0) 1.0 Derivative financial instruments – assets 1.1 0.5 0.6 0.0 0.0 0.5 (0.4) 0.2 (0.2) (0.0) 1.8 of which: Interest rate 0.5 0.1 0.1 0.0 0.0 0.0 (0.1) 0.1 (0.1) (0.0) 0.4 of which: Equity / index 0.4 0.3 0.3 0.0 0.0 0.2 (0.2) 0.0 (0.0) (0.0) 0.7 of which: Credit 0.2 0.1 0.1 0.0 0.0 0.2 (0.0) 0.1 0.0 0.0 0.6 Financial assets at fair value not held for trading 4.2 0.1 0.1 0.6 (0.6) 0.0 (0.0) 0.0 (0.1) (0.1) 4.2 of which: Loans 0.9 (0.0) (0.0) 0.5 (0.2) 0.0 0.0 0.0 (0.1) (0.0) 1.0 of which: Auction rate securities 1.6 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.6 of which: Equity instruments 0.7 0.0 0.0 0.0 (0.1) 0.0 0.0 0.0 0.0 (0.0) 0.7 Derivative financial instruments – liabilities 2.2 (0.6) (0.6) 0.0 0.0 0.9 (0.8) 0.1 (0.1) (0.1) 1.7 of which: Interest rate 0.3 (0.2) (0.2) 0.0 0.0 0.1 (0.0) 0.0 0.0 (0.0) 0.1 of which: Equity / index 1.5 (0.3) (0.3) 0.0 0.0 0.6 (0.7) 0.0 (0.1) (0.0) 1.1 of which: Credit 0.3 (0.1) (0.1) 0.0 0.0 0.1 0.0 0.1 (0.0) (0.0) 0.4 Debt issued designated at fair value 14.2 (2.5) (2.3) 0.0 0.0 4.2 (2.7) 0.7 (1.5) (0.4) 12.0 Other financial liabilities designated at fair value 0.8 (0.0) (0.0) 0.0 0.0 0.2 (0.1) 0.0 (0.0) (0.0) 0.9 1 Net gains / losses included in comprehensive income are recognized in Net interest income and Other net income from financial instruments measured at fair value through profit or loss in the Income statement, and also in Gains / (losses) from own credit on financial liabilities designated at fair 21.5 bn (31 December 2022: USD 6.8 bn). Total Level 3 liabilities as of 30 June 2023 were USD 27.6 bn (31 December 2022: USD 13.0 bn).
Disclosure Of Fair Value Of Financial Instruments Not Measured At Fair Value Explanatory	Financial instruments not measured at fair value 30.6.23 31.3.23 31.12.22 USD bn Carrying amount Fair value Carrying amount Fair value Carrying amount Fair value Assets Cash and balances at central banks 261.6 261.6 144.2 144.2 169.4 169.4 Amounts due from banks 24.4 24.3 14.9 15.0 14.8 14.8 Receivables from securities financing transactions measured at amortized 86.5 86.6 60.0 60.0 67.8 67.8 Cash collateral receivables on derivative instruments 54.3 54.3 32.7 32.6 35.0 35.0 Loans and advances to customers 651.8 639.3 390.1 378.5 387.2 374.9 Other financial assets measured at amortized cost 64.9 62.5 49.2 47.2 53.3 50.8 Liabilities Amounts due to banks 99.2 99.2 13.6 13.6 11.6 11.6 Payables from securities financing transactions measured at amortized cost 22.3 22.3 9.9 9.9 4.2 4.2 Cash collateral payables on derivative instruments 41.4 41.4 32.2 32.2 36.4 36.4 Customer deposits 712.5 712.3 505.6 504.9 525.1 524.8 Debt issued measured at amortized cost 230.9 229.9 116.3 113.7 114.6 113.5 Other financial liabilities measured at amortized cost 1 13.6 13.7 7.0 7.0 6.2 6.2 1 Excludes lease liabilities.

Derivative instruments (Tables)

Derivative instruments (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Derivative Financial Assets And Liabilities [Line Items]
Disclosure Of Derivative Financial Assets And Liabilities Explanatory	As of 30.6.23, USD bn Derivative financial assets Derivative financial liabilities Notional values related to derivative financial assets and liabilities 1 Other notional values 2 Derivative financial instruments Interest rate 63.7 62.0 3,788 3 25,438 Credit derivatives 5.4 6.2 379 Foreign exchange 74.7 76.6 7,350 82 Equity / index 39.7 45.3 1,192 497 Commodities 1.7 1.7 159 23 Other 4 0.8 1.3 140 Total derivative financial instruments, based on IFRS netting 5 185.9 193.1 13,010 26,040 of which: Credit Suisse 6 63.2 66.7 2,804 10,689 Further netting potential not recognized on the balance 7 (170.0) (174.9) of which: netting of recognized financial liabilities / assets (140.0) (140.0) of which: netting with collateral received / pledged (30.0) (34.9) Total derivative financial instruments, after consideration of further netting potential 15.9 18.2 As of 31.3.23, USD bn Derivative financial instruments Interest rate 36.7 34.7 2,345 13,842 Credit derivatives 1.3 1.3 86 Foreign exchange 52.2 53.3 6,610 56 Equity / index 21.8 24.6 932 76 Commodities 1.8 1.6 146 19 Other 4 0.4 0.6 106 Total derivative financial instruments, based on IFRS netting 5 114.3 116.1 10,224 13,993 Further netting potential not recognized on the balance 7 (105.4) (104.3) of which: netting of recognized financial liabilities / assets (84.9) (84.9) of which: netting with collateral received / pledged (20.5) (19.4) Total derivative financial instruments, after consideration of further netting potential 8.8 11.8 As of 31.12.22, USD bn Derivative financial instruments Interest rate 39.8 37.5 2,080 11,255 Credit derivatives 1.0 1.2 74 Foreign exchange 85.5 88.5 6,080 40 Equity / index 22.2 26.1 886 63 Commodities 1.4 1.4 132 18 Other 4 0.2 0.1 50 Total derivative financial instruments, based on IFRS netting 5 150.1 154.9 9,302 11,376 Further netting potential not recognized on the balance 7 (139.4) (137.1) of which: netting of recognized financial liabilities / assets (110.9) (110.9) of which: netting with collateral received / pledged (28.5) (26.2) Total derivative financial instruments, after consideration of further netting potential 10.7 17.8 1 In cases where derivative Notional amounts of client-cleared ETD and OTC transactions that are cleared through either financial assets and Derivative financial liabilities). The fair value of these derivatives is presented on the balance sheet net of the corresponding cash margin under Cash collateral receivables on derivative instruments and Cash collateral 225 bn related to 4 Includes mainly Loan commitments measured date are recognized as amounts, both in the normal course of business and in the event of default, bankruptcy or insolvency of UBS or its simultaneously. where not all criteria for a net presentation on the balance sheet have been met. Refer to “Note 21 Offsetting financial assets and financial liabilities” in the “Consolidated financial statements” section of the Annual Report 2022 for more information.
Disclosure Of Offsetting Of Financial Assets And Liabilities Explanatory	USD bn Receivables 30.6.23 Payables 30.6.23 Receivables 31.3.23 Payables 31.3.23 Receivables 31.12.22 Payables 31.12.22 Cash collateral on derivative instruments, based on IFRS netting 1 54.3 41.4 32.7 32.2 35.0 36.4 of which: Credit Suisse 2 19.3 10.0 Further netting potential not recognized on the balance 3 (34.1) (26.7) (18.6) (17.3) (22.9) (21.9) of which: netting of recognized financial liabilities / assets (30.4) (22.9) (15.6) (14.3) (20.9) (20.0) of which: netting with collateral received / pledged (3.8) (3.8) (3.0) (3.0) (1.9) (1.9) Cash collateral on derivative instruments, after consideration of further netting potential 20.2 14.7 14.1 14.9 12.1 14.5 1 Financial assets and liabilities are presented event of default, bankruptcy or insolvency of UBS or its counterparties, and intends either to settle on a net basis or to realize the asset about the acquisition of the Credit Suisse Group. sheet have been met. Refer to “Note 21 Offsetting financial assets and financial liabilities” in the “Consolidated financial statements” section of

Other assets and liabilities (T

Other assets and liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Other Assets And Other Liabilities [Line Items]
Disclosure Of Other Financial Assets Measured At Amortised Cost Explanatory	USD m 30.6.23 31.3.23 31.12.22 Debt securities 43,664 40,646 44,594 Loans to financial advisors 2,588 2,571 2,611 Fee- and commission-related receivables 2,774 1,927 1,812 Finance lease receivables 5,868 1,345 1,315 Settlement and clearing accounts 811 542 1,175 Accrued interest income 2,746 1,300 1,259 Other 6,477 847 499 Total other financial assets measured at amortized cost 64,928 49,179 53,264 of which: Credit Suisse 1 12,841 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Other Non Financial Assets Explanatory	USD m 30.6.23 31.3.23 31.12.22 Precious metals and other physical commodities 5,794 4,506 4,471 Deposits and collateral provided in connection with litigation, 1 3,006 2,235 2,205 Prepaid expenses 3,138 1,265 1,076 Current tax assets 1,331 167 182 VAT, 1,279 1,733 1,286 Properties and other non-current assets held for sale 485 370 369 Other 1,885 681 578 Total other non-financial assets 16,919 10,958 10,166 of which: Credit Suisse 2 6,971 1 Refer to Note 15 for more information.
Disclosure Of Other Financial Liabilities Measured At Amortized Cost Explanatory	USD m 30.6.23 31.3.23 31.12.22 Other accrued expenses 3,653 1,895 1,760 Accrued interest expenses 4,639 1,920 1,949 Settlement and clearing accounts 1,931 1,548 1,075 Lease liabilities 5,810 3,294 3,334 Other 3,370 1,634 1,457 Total other financial liabilities measured at amortized cost 19,403 10,292 9,575 of which: Credit Suisse 1 7,415 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Other Financial Liabilities Measured At Fair Value Explanatory	USD m 30.6.23 31.3.23 31.12.22 Financial liabilities related to unit-linked investment contracts 15,124 14,243 13,221 Securities financing transactions 13,295 9,707 15,333 Over-the-counter debt instruments and other 7,703 1,809 1,684 Total other financial liabilities designated at fair value 36,122 25,758 30,237 of which: Credit Suisse 1 6,996 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Other Non Financial Liabilities Explanatory	USD m 30.6.23 31.3.23 31.12.22 Compensation-related liabilities 7,310 4,550 6,822 of which: net defined benefit liability 777 485 469 Current tax liabilities 1,630 968 1,071 Deferred tax liabilities 434 266 236 VAT, 822 676 592 Deferred income 828 290 235 Other 970 62 84 Total other non-financial liabilities 11,994 6,811 9,040 of which: Credit Suisse 1 4,383 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.

Debt issued designated at fai_2

Debt issued designated at fair value (Table)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Designated Financial Liabilities At Fair Value Through Profit Or Loss	USD m 30.6.23 31.3.23 31.12.22 Issued debt instruments Equity-linked 1 64,446 44,721 41,901 Rates-linked and fixed-rate 42,676 22,470 22,814 Credit-linked 7,655 2,815 2,170 Commodity-linked 4,234 4,311 4,294 Other 6,039 2,916 2,459 of which: debt that contributes to total loss-absorbing capacity 4,287 2,477 1,959 Total debt issued designated at fair value 2 125,050 77,233 73,638 of which: issued by UBS AG standalone with original maturity greater 3 64,047 60,268 57,750 of which: issued by Credit Suisse AG standalone with original maturity 3 34,814 of which: issued by Credit Suisse International standalone 3 1,561 1 Includes investment fund unit-linked instruments issued. As of 30 June 2023, 100 % of the balance was unsecured (31 March 2023: 100 %; 31 December 2022: 100 %).

Debt issued measured at amortiz

Debt issued measured at amortized cost (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Detailed Information About Borrowings Explanatory	USD m 30.6.23 31.3.23 31.12.22 Short-term debt 1 40,522 27,412 29,676 of which: Credit Suisse 4,932 Senior unsecured debt that contributes to total loss-absorbing 97,927 47,172 42,073 Senior unsecured debt other than TLAC 43,508 18,680 17,892 of which: issued by UBS AG standalone with original maturity greater 14,918 15,472 17,892 of which: issued by Credit Suisse AG standalone with original maturity 26,346 Covered bonds 3,934 Subordinated debt 16,832 14,175 16,017 of which: eligible as high-trigger loss-absorbing additional 9,928 10,002 9,882 of which: eligible as low-trigger loss-absorbing additional 1,190 1,198 1,189 of which: eligible as low-trigger loss-absorbing tier 2 capital 0 2,438 2,422 of which: eligible as non-Basel III-compliant tier 2 capital 539 538 536 Debt issued through the Swiss central mortgage institutions 24,862 8,873 8,962 Other long-term debt 3,273 Long-term debt 2 190,336 88,900 84,945 of which: Credit Suisse 3 52,406 Total debt issued measured at amortized cost 4 230,857 116,312 114,621 1 Debt with an original contractual maturity classification of debt bifurcated embedded derivatives, the fair value of which was not material for

Provisions and contingent liabi

Provisions and contingent liabilities (Tables)	6 Months Ended
	Jun. 30, 2023
Disclosure Of Other Provisions [Line Items]
Disclosure Of Provisions Breakdown Explanatory	USD m 30.6.23 31.3.23 31.12.22 Provisions related to expected credit losses (IFRS 9, Financial instruments ) 1 367 214 201 Provisions related to Credit Suisse loan commitments (IFRS Business Combinations ) 2 4,400 Provisions related to litigation, regulatory and similar matters 6,126 3,306 2,586 Acquisition-related contingent liabilities (IFRS 3, Business Combinations ) 2 2,992 Other provisions 1,044 416 456 Total provisions and contingent liabilities 14,929 3,937 3,243 of which: Credit Suisse 2 11,071 1 Refer to Note 8c for more information.
Disclosure Of Other Provisions Explanatory	USD m Litigation, regulatory and similar matters 1 Other 2 Total Balance as of 31 December 2022 2,586 456 3,042 Balance as of 31 March 2023 3,306 416 3,723 Provisions recognized upon acquisition of Credit Suisse 2,838 707 3,545 Increase in provisions recognized in the income statement 70 41 111 Release of provisions recognized in the income statement (1) (8) (9) Provisions used in conformity with designated purpose (90) (126) (216) Foreign currency translation and other movements 3 2 14 16 Balance as of 30 June 2023 6,126 1,044 7,170 of which: Credit Suisse 4 2,837 649 3,487 1 Consists of provisions capitalized reinstatement costs and unwinding of discount.

Litigation, regulatory and si_2

Litigation, regulatory and similar matters (Tables)	6 Months Ended
	Jun. 30, 2023
Notes Litigation Regulatory And Similar Matters [Line Items]
Disclosure of provisions for litigation, regulatory and similar matters [text block]	Provisions for litigation, regulatory and similar matters 1 USD m Global Wealth Manage- ment Personal & Corporate Banking Asset Manage- ment Investment Bank Group Functions Credit Suisse Total Balance as of 31 December 2022 1,182 159 8 308 928 2,586 Balance as of 31 March 2023 1,193 161 8 351 1,594 3,306 Provisions recognized upon acquisition of Credit Suisse 2,838 2,838 Increase in provisions recognized in the income statement 35 0 1 20 0 14 70 Release of provisions recognized in the income statement (1) 0 0 0 0 0 (1) Provisions used in conformity with designated purpose (37) 0 (1) (45) 0 (7) (90) Foreign currency translation / unwind of discount 7 1 0 1 1 (8) 2 Balance as of 30 June 2023 1,196 162 8 327 1,595 2,837 6,126 1 Provisions, if any, for the matters described in item 3 of this Note are recorded in Global Wealth Management, and provisions, if any, for allocated between the Investment Bank and Group Functions.

Basis of accounting, Currency t

Basis of accounting, Currency translation rates (Detail)	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
1 CHF
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.12	1.09	1.05	1.12	1.05	1.08
Average rate	1.11	1.08	1.04	1.11	1.06
1 EUR
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.09	1.08	1.05	1.09	1.05	1.07
Average rate	1.09	1.08	1.06	1.09	1.09
1 GBP
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.27	1.23	1.22	1.27	1.22	1.21
Average rate	1.27	1.22	1.25	1.24	1.29
100 JPY
Foreign Exchange Rates [Line Items]
Closing exchange rate	0.69	0.75	0.74	0.69	0.74	0.76
Average rate	0.71	0.75	0.76	0.73	0.80

Accounting for the acquisitio_3

Accounting for the acquisition of Credit Suisse Group (Narrative) (Detail) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 12, 2023	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2023
Disclosure Of Business Combinations [Line items]
Provisional negative goodwill resulting from the acquisition			$ 28,925	$ 28,925
Provisions related to Credit Suisse loan commitments		$ 4,400	4,400	4,400
Acquisition-related contingent liabilities		2,992	$ 2,992	2,992
Credit Suisse
Disclosure Of Business Combinations [Line items]
Conversion impact from the different derivative netting rules	$ 70,000
Fair value adjustments recognized on financial instruments that are classified at fair value through profit or loss	2,300
Fair value adjustments recognized on financial instruments at amortized cost and off-balance sheet commitments and guarantees	12,400
Provisional negative goodwill resulting from the acquisition	28,925			28,925
Acquisition-related costs	200
Credit Suisse contribution to net revenues of the Group		1,200
Credit Suisse contribution to net profit of the Group		$ 1,200
Estimated net revenues for the Group				24,000
Estimated profit loss for the Group				$ 900
Gain from the write-down of additional tier 1 capital notes	16,400
Gain from the reversal of contingent compensation award accrual	400
Provisional fair value of core deposits and customer relationships intangibles	900
Mortgage servicing rights	400
Goodwill impairment charge	$ 1,400
Vesting requirement for payment arrangement	60
Retention awards	$ 500
Percentage of retention awards offered in shares	50%
Percentage of retention awards offered in cash	50%
Expenses on retention awards	$ 84
Additional provisions and contingent liabilities	4,500
Acquisition-related contingent liabilities	3,000
Litigation provisions	1,500
Fair value adjustments on acquired loan commitments and guarantees recognized under IFRS	4,500
Fair value adjustments on acquired loan commitments and guarantees recognized under IFRS included in provisions and contingent liabilities	4,300
Fair value adjustments on acquired loan commitments and guarantees recognized under IFRS included in derivative financial instruments liabilities	200
Existing provisions of Credit Suisse Group	$ 1,300

Accounting for the acquisitio_4

Accounting for the acquisition of Credit Suisse Group - Determination of the purchase price consideration (Detail) - Credit Suisse SFr / shares in Units, shares in Millions, SFr in Millions, $ in Millions		6 Months Ended
	Jun. 12, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jun. 12, 2023 CHF (SFr) SFr / shares shares	Jun. 12, 2023 USD ($) shares
Disclosure Of Determination Of The Purchase Price Consideration [Line Items]
The Credit Suisse Group ordinary shares outstanding | shares			3,949	3,949
Credit Suisse To UBS Exchange Ratio			4%	4%
UBS Ordinary Shares Equivalent | shares			176	176
UBS Ordinary Share Price | SFr / shares			SFr 18.35
Impact of share-based compensation awards				$ 162
Provisional purchase price consideration, after consideration of pre-existing relationships				3,845
Net cash and cash equivalents acquired with the Credit Suisse Group (included in cash flows from investing activities)	$ 108,510	$ 108,510
of which: amounts due from banks	12,601
of which: money market paper	$ 2,897
Purchase price consideration, before consideration of share-based compensation awards using exchange rate of 1.10				3,547
Purchase price consideration, before consideration of share-based compensation awards | SFr			SFr 3,223
Purchase Price Consideration After Consideration Of Share Based Awards				$ 3,710

Accounting for the acquisitio_5

Accounting for the acquisition of Credit Suisse Group - Recognized amounts of identifiable assets acquired and liabilities assumed (Detail) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Jun. 12, 2023	Jun. 30, 2023	Jun. 30, 2023
Liabilities
Provisional negative goodwill resulting from the acquisition		$ 28,925	$ 28,925
Credit Suisse
Disclosure Of Recognized Amounts Of Identifiable Assets Acquired And Liabilities Assumed [Line Items]
Purchase price consideration, after consideration of share-based compensation awards	$ 3,710
Assets
Cash and balances at central banks	93,012
Amounts due from banks	13,590
Receivables from securities financing transactions	26,194
Cash collateral receivables on derivative instruments	20,878
Loans and advances to customers	261,839
Other financial assets measured at amortized cost	13,440
Total financial assets measured at amortized cost	428,954
Financial assets at fair value held for trading	35,046
Derivative financial assets	62,162
Brokerage receivables	366
Financial assets at fair value not held for trading	61,305
Total financial assets measured at fair value through profit or loss	158,879
Financial assets measured at fair value through other comprehensive income	0
Investments in associates	1,657
Property, equipment and software	6,055
Deferred tax assets	942
Intangible assets	1,287
Other non-financial assets	6,892
Total assets	604,667
Liabilities
Amounts due to banks	107,617
Payables from securities financing transactions	11,911
Cash collateral payables on derivative instruments	10,939
Customer deposits	183,119
Debt issued measured at amortized cost	110,491
Other financial liabilities measured at amortized cost	7,992
Total financial liabilities measured at amortized cost	432,070
Financial liabilities at fair value held for trading	5,711
Derivative financial instruments	66,091
Brokerage payables designated at fair value	316
Debt issued designated at fair value	44,909
Other financial liabilities designated at fair value	7,574
Total financial liabilities measured at fair value through profit or loss	124,601
Provisions and contingent liabilities	11,052
Other non-financial liabilities	3,888
Total liabilities	571,611
Non-controlling interests	(285)
Fair value of net assets acquired	32,771
Provisional negative goodwill resulting from the acquisition	$ 28,925		$ 28,925

Accounting for the acquisitio_6

Accounting for the acquisition of Credit Suisse Group - Pre-existing relationships (Detail) - Credit Suisse $ in Millions	Jun. 12, 2023 USD ($)
Disclosure Of Preexisting Relationships Line Items
Cash collateral receivables on derivative instruments	$ 7
Derivative financial instruments	1,476
Debt instruments issued by Credit Suisse and held by UBS	98
Total assets	1,581
Cash collateral payables on derivative instruments	572
Derivative financial instruments	813
Total liabilities	1,385
Treasury shares	(61)
Total equity	(61)
Total net pre-existing relationships	$ 135

Reclassification of financial a

Reclassification of financial assets (Narrative) (Detail) $ in Millions	3 Months Ended
	Jun. 30, 2023 USD ($)
Disclosure Of Reclassification Of Financial Assets [Line Items]
Reclassification of financial assets to Other financial assets measured at amortized cost, before tax	$ 449
Reclassification of financial assets to Other financial assets measured at amortized cost, net of tax	$ 333

Segment reporting - Income stat

Segment reporting - Income statement (Detail) - USD ($) $ in Millions		1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 12, 2023	Jun. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Operating Segments [Line Items]
Total revenues			$ 9,540	$ 8,744	$ 8,917	$ 18,284	$ 18,299
Negative goodwill			28,925			28,925
Credit loss expense / (release)			740	38	7	778	25
Operating expenses			8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax			29,239	1,495	2,615	30,735	5,344
Tax expense / (benefit)			361	459	497	820	1,082
Net profit / (loss)			28,878	$ 1,037	$ 2,118	29,915	4,262
Credit Suisse
Disclosure Of Operating Segments [Line Items]
Negative goodwill	$ 28,925					28,925
Operating profit / (loss) before tax						28,925
UBS BDs
Disclosure Of Operating Segments [Line Items]
Total revenues						17,128	18,299
Credit loss expense / (release)			16			54	25
Operating expenses						14,055	12,929
Operating profit / (loss) before tax						3,019	5,344
Tax expense / (benefit)						807	1,082
Net profit / (loss)						2,212	$ 4,262
Credit Suisse BDs
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)			$ 724
Credit Suisse BDs | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues		$ 743				743
Credit loss expense / (release)		101				101
Operating expenses		1,807				1,807
Operating profit / (loss) before tax		(1,165)				(1,165)
Credit Suisse BDs | Reconciliation from US GAAP to IFRS
Disclosure Of Operating Segments [Line Items]
Total revenues		413				413
Credit loss expense / (release)		623				623
Operating expenses		(166)				(166)
Operating profit / (loss) before tax		$ (44)				$ (44)

Segment reporting (Detail)

Segment reporting (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Operating Segments [Line Items]
Total revenues	$ 9,540	$ 8,744	$ 8,917	$ 18,284	$ 18,299
Credit loss expense / (release)	740	38	7	778	25
Operating expenses	8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax	29,239	1,495	2,615	30,735	5,344
Tax expense / (benefit)	361	459	497	820	1,082
Net profit / (loss)	28,878	1,037	2,118	29,915	4,262
UBS BDs
Disclosure Of Operating Segments [Line Items]
Total revenues				17,128	18,299
Credit loss expense / (release)	16			54	25
Operating expenses				14,055	12,929
Operating profit / (loss) before tax				3,019	5,344
Tax expense / (benefit)				807	1,082
Net profit / (loss)				2,212	4,262
Global Wealth Management
Disclosure Of Operating Segments [Line Items]
Total revenues				9,528	9,581
Credit loss expense / (release)	5	15	(3)	20	(10)
Operating expenses				7,182	7,124
Operating profit / (loss) before tax				2,325	2,467
Personal & Corporate Banking
Disclosure Of Operating Segments [Line Items]
Total revenues				2,681	2,144
Credit loss expense / (release)	10	16	35	26	57
Operating expenses				1,376	1,246
Operating profit / (loss) before tax				1,279	841
Asset Management
Disclosure Of Operating Segments [Line Items]
Total revenues				1,001	1,950
Credit loss expense / (release)	0	0	0	0	0
Operating expenses				818	817
Operating profit / (loss) before tax				184	1,133
Investment Bank
Disclosure Of Operating Segments [Line Items]
Total revenues				4,241	5,003
Credit loss expense / (release)	1	7	(28)	8	(24)
Operating expenses				3,618	3,688
Operating profit / (loss) before tax				615	1,339
Group Functions
Disclosure Of Operating Segments [Line Items]
Total revenues				(323)	(379)
Credit loss expense / (release)	$ 0	$ 0	$ 2	0	2
Operating expenses				1,062	54
Operating profit / (loss) before tax				$ (1,385)	$ (436)

Segment reporting 2 (Detail)

Segment reporting 2 (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Operating Segments [Line Items]
Total revenues		$ 9,540	$ 8,744	$ 8,917	$ 18,284	$ 18,299
Credit loss expense / (release)		740	38	7	778	25
Operating expenses		8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax		29,239	$ 1,495	$ 2,615	30,735	5,344
UBS BDs
Disclosure Of Operating Segments [Line Items]
Total revenues					17,128	18,299
Credit loss expense / (release)		16			54	25
Operating expenses					14,055	12,929
Operating profit / (loss) before tax					3,019	$ 5,344
Credit Suisse BDs
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		724
Credit Suisse BDs | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	$ 743				743
Credit loss expense / (release)	101				101
Operating expenses	1,807				1,807
Operating profit / (loss) before tax	(1,165)				$ (1,165)
Wealth Management
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		149
Wealth Management | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	323
Credit loss expense / (release)	7
Operating expenses	427
Operating profit / (loss) before tax	(111)
Swiss Bank
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		224
Swiss Bank | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	339
Credit loss expense / (release)	67
Operating expenses	264
Operating profit / (loss) before tax	8
Asset Management
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		1
Asset Management | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	91
Credit loss expense / (release)	2
Operating expenses	103
Operating profit / (loss) before tax	(14)
Investment Bank
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		200
Investment Bank | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	102
Credit loss expense / (release)	(3)
Operating expenses	715
Operating profit / (loss) before tax	(610)
Capital Release Unit
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		148
Capital Release Unit | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	28
Credit loss expense / (release)	28
Operating expenses	198
Operating profit / (loss) before tax	(198)
Corporate Center
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		$ 2
Corporate Center | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	(140)
Credit loss expense / (release)	0
Operating expenses	100
Operating profit / (loss) before tax	$ (240)

Segment reporting 3 (Detail)

Segment reporting 3 (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Operating Segments [Line Items]
Total revenues		$ 9,540	$ 8,744	$ 8,917	$ 18,284	$ 18,299
Credit loss expense / (release)		740	38	7	778	25
Operating expenses		8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax		29,239	$ 1,495	$ 2,615	30,735	5,344
UBS BDs
Disclosure Of Operating Segments [Line Items]
Total revenues					17,128	18,299
Credit loss expense / (release)		16			54	25
Operating expenses					14,055	12,929
Operating profit / (loss) before tax					3,019	$ 5,344
Credit Suisse BDs
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)		$ 724
Credit Suisse BDs | US GAAP
Disclosure Of Operating Segments [Line Items]
Total revenues	$ 743				743
Credit loss expense / (release)	101				101
Operating expenses	1,807				1,807
Operating profit / (loss) before tax	(1,165)				(1,165)
Credit Suisse BDs | Reconciliation from US GAAP to IFRS
Disclosure Of Operating Segments [Line Items]
Total revenues	413				413
Credit loss expense / (release)	623				623
Operating expenses	(166)				(166)
Operating profit / (loss) before tax	(44)				$ (44)
Credit Suisse BDs | Conversion from US GAAP to IFRS (excluding PPA accretion)
Disclosure Of Operating Segments [Line Items]
Total revenues	44
Credit loss expense / (release)	623
Operating expenses	(166)
Operating profit / (loss) before tax	(413)
Credit Suisse BDs | of which: ECL adjustment
Disclosure Of Operating Segments [Line Items]
Credit loss expense / (release)	623
Operating profit / (loss) before tax	(623)
Credit Suisse BDs | of which: Share-based compensation
Disclosure Of Operating Segments [Line Items]
Operating expenses	(130)
Operating profit / (loss) before tax	130
Credit Suisse BDs | of which: other
Disclosure Of Operating Segments [Line Items]
Total revenues	44
Operating expenses	(36)
Operating profit / (loss) before tax	80
Credit Suisse BDs | Accretion of Purchase Price Allocation (PPA) adjustments
Disclosure Of Operating Segments [Line Items]
Total revenues	369
Credit loss expense / (release)	0
Operating expenses	0
Operating profit / (loss) before tax	$ 369

Segment reporting - Total asset

Segment reporting - Total assets (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Operating Segments [Line Items]
Total assets	$ 1,678,780	$ 1,053,134	$ 1,104,364
UBS vs Credit Suisse eliminations
Disclosure Of Operating Segments [Line Items]
Total assets	(64,132)
UBS BDs
Disclosure Of Operating Segments [Line Items]
Total assets	1,142,419		1,104,364
Global Wealth Management
Disclosure Of Operating Segments [Line Items]
Total assets	375,118		388,530
Personal & Corporate Banking
Disclosure Of Operating Segments [Line Items]
Total assets	241,539		235,226
Asset Management
Disclosure Of Operating Segments [Line Items]
Total assets	19,083		17,348
Investment Bank
Disclosure Of Operating Segments [Line Items]
Total assets	363,004		391,320
Group Functions
Disclosure Of Operating Segments [Line Items]
Total assets	143,676		$ 71,940
Credit Suisse BDs | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	544,367
Credit Suisse BDs | Reconciliation from US GAAP to IFRS
Disclosure Of Operating Segments [Line Items]
Total assets	56,125
Credit Suisse BDs | Conversion from US GAAP to IFRS for derivative netting
Disclosure Of Operating Segments [Line Items]
Total assets	69,705
Credit Suisse BDs | IFRS 3 PPA fair value marks on financial assets measured at amortized cost
Disclosure Of Operating Segments [Line Items]
Total assets	(8,428)
Credit Suisse BDs | IFRS 3 PPA adjustments to other assets
Disclosure Of Operating Segments [Line Items]
Total assets	1,972
Wealth Management | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	106,729
Swiss Bank | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	211,218
Asset Management | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	1,716
Investment Bank | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	96,575
Capital Release Unit | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	74,843
Corporate Center | US GAAP
Disclosure Of Operating Segments [Line Items]
Total assets	$ 53,286

Net interest income (Detail)

Net interest income (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Interest Income [Line Items]
Interest income from loans and deposits	$ 6,247	$ 4,106	$ 1,886	$ 10,353	$ 3,546
Interest income from securities financing transactions measured at amortized cost	1,004	766	209	1,769	327
Interest income from other financial instruments measured at amortized cost	282	259	118	540	191
Interest income from debt instruments measured at fair value through other comprehensive income	26	23	6	48	47
Interest income from derivative instruments designated as cash flow hedges	(457)	(376)	160	(833)	413
Total interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	7,101	4,777	2,380	11,878	4,525
Interest expense on loans and deposits	3,024	1,994	262	5,018	401
Interest expense on securities financing transactions measured at amortized cost	616	365	288	981	512
Interest expense on debt issued	2,205	1,429	498	3,635	893
Interest expense on lease liabilities	35	26	22	61	45
Total interest expense from financial instruments measured at amortized cost	5,880	3,814	1,070	9,695	1,852
Total net interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	1,221	962	1,310	2,183	2,673
Net interest income from financial instruments measured at fair value through profit or loss and other	493	425	355	918	763
Total net interest income	$ 1,713	$ 1,388	$ 1,665	$ 3,101	$ 3,436

Net fee and commission income_2

Net fee and commission income (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net fee And Commission Income [Line Items]
Underwriting Fees	$ 153	$ 127	$ 111	$ 280	$ 283
M&A and corporate finance fees	199	178	220	378	456
Brokerage fees	930	880	869	1,809	1,946
Investment fund fees	1,196	1,178	1,233	2,374	2,620
Portfolio management and related services	2,485	2,210	2,298	4,695	4,761
Other	719	479	492	1,199	993
Total fee and commission income	5,682	5,053	5,224	10,735	11,061
Fee and commission expense	507	447	450	954	934
Net fee and commission income	5,175	4,606	4,774	9,781	10,127
Credit Suisse
Net fee And Commission Income [Line Items]
Total fee and commission income	675
Global Wealth Management
Net fee And Commission Income [Line Items]
Total fee and commission income	3,134	3,145	3,281
Personal & Corporate Banking
Net fee And Commission Income [Line Items]
Total fee and commission income	465	449	421
Asset Management
Net fee And Commission Income [Line Items]
Total fee and commission income	673	687	720
Investment Bank
Net fee And Commission Income [Line Items]
Total fee and commission income	731	770	801
Group Functions
Net fee And Commission Income [Line Items]
Total fee and commission income	4	3	1
of which: recurring
Net fee And Commission Income [Line Items]
Total fee and commission income	3,808	3,413	3,593	7,221	7,453
of which: transaction-based
Net fee And Commission Income [Line Items]
Total fee and commission income	1,864	1,616	1,621	3,480	3,579
of which: performance-based
Net fee And Commission Income [Line Items]
Total fee and commission income	$ 10	$ 24	$ 10	$ 34	$ 29

Other income (Narrative) (Detai

Other income (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Other Income [Line Items]
Total other income	$ 188	$ 69	$ 859	$ 258	$ 891

Personnel expenses (Detail)

Personnel expenses (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Personnel Expenses [Line Items]
Salaries and variable compensation	$ 4,804	$ 3,885	$ 3,786	$ 8,689	$ 7,954
of which: variable compensation - financial advisors	1,110	1,111	1,122	2,222	2,342
Contractors	77	70	80	147	163
Social security	294	279	218	572	503
Post-employment benefit plans	261	236	199	497	448
Other personnel expenses	215	151	139	366	274
Total personnel expenses	$ 5,651	$ 4,620	$ 4,422	$ 10,271	$ 9,343

General and administrative ex_3

General and administrative expenses (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
General And Administrative Expenses [Line Items]
Outsourcing costs	$ 311	$ 248	$ 227	$ 559	$ 454
Technology costs	414	322	286	735	576
Consulting, legal and audit fees	351	181	144	532	272
Real estate and logistics costs	207	142	152	349	298
Market data services	151	113	101	264	207
Marketing and communication	89	52	61	140	101
Travel and entertainment	73	54	46	126	67
Litigation, regulatory and similar matters	69	721	221	790	278
Other	304	232	133	536	325
Total general and administrative expenses	$ 1,968	$ 2,065	$ 1,370	$ 4,033	$ 2,578

Income taxes (Narrative) (Detai

Income taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Income Taxes [Line Items]
Net tax expense	$ 361	$ 459	$ 497	$ 820	$ 1,082

Expected credit loss measurem_3

Expected credit loss measurement - ECL for the period (Narrative) (Detail 1) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 740	$ 38	$ 7	$ 778	$ 25
UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	16			54	25
Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5	15	(3)	20	(10)
Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	10	16	35	26	57
Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	0	0	0
Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	1	7	(28)	8	(24)
Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	2	$ 0	$ 2
Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	724
Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	148
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	644	26	16
Stage 1 and 2 positions | Scenario related
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(42)
Stage 1 and 2 positions | Model changes
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	27
Stage 1 and 2 positions | Book quality and size changes
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5
Stage 1 and 2 positions | UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(10)
Stage 1 and 2 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(4)	15	(8)
Stage 1 and 2 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(11)	15	26
Stage 1 and 2 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	0
Stage 1 and 2 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5	(5)	(2)
Stage 1 and 2 positions | Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	0
Stage 1 and 2 positions | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	654
Stage 1 and 2 positions | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	104
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	77	12	(9)
Stage 3 positions | UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	26
Stage 3 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	9	0	6
Stage 3 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	21	0	8
Stage 3 positions | Personal & Corporate Banking | Single commodity trade finance client
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	11
Stage 3 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	0
Stage 3 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(4)	12	(26)
Stage 3 positions | Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	$ 0	$ 2
Stage 3 positions | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	51
Stage 3 positions | Credit Suisse BDs | Counterparties defaulted after the acquisition date
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	51
Stage 3 positions | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	44
Stage 3 positions | Capital Release Unit | Real estate related client
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	44
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	19
Purchased credit-impaired (PCI) | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	19
Purchased credit-impaired (PCI) | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 0

Expected credit loss measurem_4

Expected credit loss measurement - ECL for the period (Narrative) (Detail 2) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 12, 2023	Dec. 31, 2022
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 740	$ 38	$ 7	$ 778	$ 25
Total ECL allowances and provisions	$ (1,868)	(1,121)		(1,868)			$ (1,091)
Mild debt crisis
Disclosure Of Provision Matrix [Line Items]
Scenario weights	15%
Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 10	16	35	26	57
Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5	15	(3)	20	(10)
Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	1	7	(28)	8	(24)
Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	2	0	$ 2
Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	724
Credit Suisse | Post-model adjustment
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	102			102
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	644	26	16
Total ECL allowances and provisions	1,199			1,199
Stage 1 and 2 positions | Post-model adjustment
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	131	128		$ 131
Stage 1 and 2 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(11)	15	26
Stage 1 and 2 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(4)	15	(8)
Stage 1 and 2 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5	(5)	(2)
Stage 1 and 2 positions | Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	0
Stage 1 and 2 positions | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	654
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	77	12	(9)
Stage 3 positions | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions						$ 1,100
Stage 3 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	21	0	8
Stage 3 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	9	0	6
Stage 3 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(4)	12	(26)
Stage 3 positions | Group Functions - Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	$ 0	$ 2
Stage 3 positions | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	51
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	19
Purchased credit-impaired (PCI) | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 19

Expected credit loss measurem_5

Expected credit loss measurement - CLE for the period (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		$ 740	$ 38	$ 7	$ 778	$ 25
UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		16			54	25
Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		5	15	(3)	20	(10)
Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		10	16	35	26	57
Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	0	0	0	0
Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		1	7	(28)	8	(24)
Group Functions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	0	2	0	$ 2
Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		724
Credit Suisse BDs | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 101				101
Credit Suisse BDs | Reconciliation from US GAAP to IFRS
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	623				$ 623
Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		149
Wealth Management | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	7
Swiss Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		224
Swiss Bank | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	67
Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		1
Asset Management | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	2
Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		200
Investment Bank | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(3)
Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		148
Capital Release Unit | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	28
Corporate Center
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		2
Corporate Center | US GAAP
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 0
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		644	26	16
Stage 1 and 2 positions | UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		(10)
Stage 1 and 2 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		(4)	15	(8)
Stage 1 and 2 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		(11)	15	26
Stage 1 and 2 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	0	0
Stage 1 and 2 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		5	(5)	(2)
Stage 1 and 2 positions | Group Functions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	0	0
Stage 1 and 2 positions | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		654
Stage 1 and 2 positions | Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		143
Stage 1 and 2 positions | Swiss Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		217
Stage 1 and 2 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		1
Stage 1 and 2 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		189
Stage 1 and 2 positions | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		104
Stage 1 and 2 positions | Corporate Center
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		2
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		77	12	(9)
Stage 3 positions | UBS BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		26
Stage 3 positions | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		9	0	6
Stage 3 positions | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		21	0	8
Stage 3 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	0	0
Stage 3 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		(4)	12	(26)
Stage 3 positions | Group Functions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0	$ 0	$ 2
Stage 3 positions | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		51
Stage 3 positions | Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Stage 3 positions | Swiss Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		7
Stage 3 positions | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Stage 3 positions | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Stage 3 positions | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		44
Stage 3 positions | Corporate Center
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		19
Purchased credit-impaired (PCI) | Credit Suisse BDs
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		19
Purchased credit-impaired (PCI) | Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		7
Purchased credit-impaired (PCI) | Swiss Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Purchased credit-impaired (PCI) | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Purchased credit-impaired (PCI) | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		12
Purchased credit-impaired (PCI) | Capital Release Unit
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		0
Purchased credit-impaired (PCI) | Corporate Center
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		$ 0

Expected credit loss measurem_6

Expected credit loss measurement - ECL selection of key macro-economic variables (Detail) - Baseline	6 Months Ended
	Jun. 30, 2023
2022 | Real GDP growth (annual percentage change) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.10%
2022 | Real GDP growth (annual percentage change) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.50%
2022 | Real GDP growth (annual percentage change) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.10%
2022 | Unemployment rate (%, annual average) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.60%
2022 | Unemployment rate (%, annual average) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.70%
2022 | Unemployment rate (%, annual average) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.20%
2022 | Fixed income: 10-year government bonds (%, Q4) | USD
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.90%
2022 | Fixed income: 10-year government bonds (%, Q4) | EUR
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.60%
2022 | Fixed income: 10-year government bonds (%, Q4) | CHF
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.60%
2022 | Real estate (annual percentage change, Q4) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	7.40%
2022 | Real estate (annual percentage change, Q4) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.80%
2022 | Real estate (annual percentage change, Q4) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.90%
2023 | Real GDP growth (annual percentage change) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.40%
2023 | Real GDP growth (annual percentage change) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.80%
2023 | Real GDP growth (annual percentage change) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.90%
2023 | Unemployment rate (%, annual average) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.70%
2023 | Unemployment rate (%, annual average) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.70%
2023 | Unemployment rate (%, annual average) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.20%
2023 | Fixed income: 10-year government bonds (%, Q4) | USD
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.70%
2023 | Fixed income: 10-year government bonds (%, Q4) | EUR
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%
2023 | Fixed income: 10-year government bonds (%, Q4) | CHF
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1%
2023 | Real estate (annual percentage change, Q4) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.90%)
2023 | Real estate (annual percentage change, Q4) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.20%)
2023 | Real estate (annual percentage change, Q4) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.50%)
2024 | Real GDP growth (annual percentage change) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.10%
2024 | Real GDP growth (annual percentage change) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1%
2024 | Real GDP growth (annual percentage change) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.30%
2024 | Unemployment rate (%, annual average) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	5.10%
2024 | Unemployment rate (%, annual average) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.90%
2024 | Unemployment rate (%, annual average) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.50%
2024 | Fixed income: 10-year government bonds (%, Q4) | USD
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.60%
2024 | Fixed income: 10-year government bonds (%, Q4) | EUR
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.20%
2024 | Fixed income: 10-year government bonds (%, Q4) | CHF
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.90%
2024 | Real estate (annual percentage change, Q4) | United States
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.10%
2024 | Real estate (annual percentage change, Q4) | Eurozone
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.80%
2024 | Real estate (annual percentage change, Q4) | Switzerland
Disclosure of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.00%)

Expected credit loss measurem_7

Expected credit loss measurement - Economic scenarios and weights applied (Detail)	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022
Asset price inflation
Disclosure Of Provision Matrix [Line Items]
Assigned weights	0%	0%	0%
Baseline
Disclosure Of Provision Matrix [Line Items]
Assigned weights	60%	60%	55%
Severe Russia-Ukraine conflict scenario
Disclosure Of Provision Matrix [Line Items]
Assigned weights			25%
Mild debt crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	15%
Stagflationary Geopolitical Crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	25%	25%
Global crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights		15%	20%

Expected credit loss measurem_8

Expected credit loss measurement - On-balance sheet financial assets subject to ECL (Detail) - USD ($)	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	$ (1,868,000,000)	$ (1,121,000,000)	$ (1,091,000,000)
Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(731,000,000)
Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,145,746,000,000	693,370,000,000	729,807,000,000
Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	431,559,000,000
Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,143,528,000,000	691,130,000,000	727,568,000,000
Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	261,587,000,000	144,183,000,000	169,445,000,000
Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	24,392,000,000	14,901,000,000	14,792,000,000
Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	86,538,000,000	60,010,000,000	67,814,000,000
Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	54,314,000,000	32,726,000,000	35,032,000,000
Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	651,770,000,000	390,130,000,000	387,220,000,000
Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	262,025,000,000
Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	255,322,000,000	159,409,000,000	156,930,000,000
Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	91,763,000,000
Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	92,890,000,000	48,672,000,000	46,470,000,000
Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	42,835,000,000
Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	32,162,000,000	12,943,000,000	12,226,000,000
Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18,718,000,000
Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	29,595,000,000	13,610,000,000	13,903,000,000
Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,114,000,000
Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	168,713,000,000	128,960,000,000	132,287,000,000
Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	44,202,000,000
Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,939,000,000	1,831,000,000	1,834,000,000
Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,950,000,000	3,053,000,000	3,272,000,000
Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,757,000,000
Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18,910,000,000
Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,153,000,000
Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,478,000,000
Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	8,033,000,000
Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,140,000,000
Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,140,000,000
Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	64,928,000,000	49,179,000,000	53,264,000,000
Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,588,000,000	2,571,000,000	2,611,000,000
Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,217,000,000	2,241,000,000	2,239,000,000
Stages 1 and 2
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	1,199,000,000
Twelve-month expected credit losses | Stages 1 and 2
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(955,000,000)	(284,000,000)	(259,000,000)
Twelve-month expected credit losses | Stages 1 and 2 | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(648,000,000)
Twelve-month expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,123,203,000,000	674,606,000,000	712,078,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	428,684,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,120,985,000,000	672,365,000,000	709,839,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	261,475,000,000	144,144,000,000	169,402,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	24,208,000,000	14,857,000,000	14,792,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	86,538,000,000	60,010,000,000	67,814,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	54,314,000,000	32,726,000,000	35,032,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	630,086,000,000	371,966,000,000	370,095,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	259,291,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	244,894,000,000	149,701,000,000	147,651,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	91,450,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	88,669,000,000	45,159,000,000	43,112,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	42,710,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	28,883,000,000	11,216,000,000	10,733,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,090,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	27,649,000,000	11,781,000,000	12,211,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	16,873,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	168,596,000,000	128,903,000,000	132,196,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	44,127,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,502,000,000	1,418,000,000	1,420,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,917,000,000	3,022,000,000	3,261,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,738,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18,904,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,152,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,234,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	7,977,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,056,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,056,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	64,364,000,000	48,661,000,000	52,704,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,287,000,000	2,323,000,000	2,357,000,000
Twelve-month expected credit losses | Stages 1 and 2 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,217,000,000	2,241,000,000	2,239,000,000
Lifetime expected credit losses | Stages 1 and 2
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(244,000,000)	(271,000,000)	(267,000,000)
Lifetime expected credit losses | Stages 1 and 2 | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,770,000,000	17,028,000,000	16,044,000,000
Lifetime expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,770,000,000	17,028,000,000	16,044,000,000
Lifetime expected credit losses | Stages 1 and 2 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	32,000,000	39,000,000	44,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	157,000,000	45,000,000	1,000,000
Lifetime expected credit losses | Stages 1 and 2 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,204,000,000	16,573,000,000	15,587,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,358,000,000	8,999,000,000	8,579,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,088,000,000	3,504,000,000	3,349,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,292,000,000	1,408,000,000	1,189,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,293,000,000	1,437,000,000	1,342,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	403,000,000	381,000,000	382,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	20,000,000	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	166,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stages 1 and 2 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	377,000,000	372,000,000	413,000,000
Lifetime expected credit losses | Stages 1 and 2 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	174,000,000	121,000,000	128,000,000
Lifetime expected credit losses | Stages 1 and 2 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stage 3
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(637,000,000)	(567,000,000)	(564,000,000)
Lifetime expected credit losses | Stage 3 | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(52,000,000)
Lifetime expected credit losses | Stage 3 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,003,000,000	1,737,000,000	1,685,000,000
Lifetime expected credit losses | Stage 3 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	104,000,000
Lifetime expected credit losses | Stage 3 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,003,000,000	1,737,000,000	1,685,000,000
Lifetime expected credit losses | Stage 3 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stage 3 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stage 3 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stage 3 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,850,000,000	1,591,000,000	1,538,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	104,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	783,000,000	709,000,000	699,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	10,000,000	8,000,000	9,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	387,000,000	320,000,000	303,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	27,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	436,000,000	392,000,000	351,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	23,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	42,000,000	57,000,000	91,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	34,000,000	32,000,000	31,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	15,000,000	10,000,000	11,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	22,000,000
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Stage 3 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	153,000,000	146,000,000	147,000,000
Lifetime expected credit losses | Stage 3 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	126,000,000	127,000,000	126,000,000
Lifetime expected credit losses | Stage 3 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(32,000,000)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total ECL allowances and provisions	(32,000,000)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,770,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,770,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,770,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	79,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	27,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,630,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,630,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	287,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	287,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	122,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	122,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,601,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,601,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	218,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	218,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	75,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	75,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	19,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	19,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	56,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	56,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	84,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	84,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	35,000,000
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,501,000,000)	(908,000,000)	(889,000,000)
Allowance for expected credit loss | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(540,000,000)
Allowance for expected credit loss | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,501,000,000)	(908,000,000)	(889,000,000)
Allowance for expected credit loss | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(10,000,000)	(12,000,000)	(12,000,000)
Allowance for expected credit loss | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11,000,000)	(6,000,000)	(6,000,000)
Allowance for expected credit loss | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,000,000)	(2,000,000)	(2,000,000)
Allowance for expected credit loss | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,369,000,000)	(804,000,000)	(783,000,000)
Allowance for expected credit loss | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(511,000,000)
Allowance for expected credit loss | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(173,000,000)	(171,000,000)	(161,000,000)
Allowance for expected credit loss | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(18,000,000)
Allowance for expected credit loss | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(63,000,000)	(42,000,000)	(41,000,000)
Allowance for expected credit loss | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(20,000,000)
Allowance for expected credit loss | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(417,000,000)	(139,000,000)	(130,000,000)
Allowance for expected credit loss | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(239,000,000)
Allowance for expected credit loss | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(314,000,000)	(243,000,000)	(251,000,000)
Allowance for expected credit loss | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(59,000,000)
Allowance for expected credit loss | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(32,000,000)	(26,000,000)	(26,000,000)
Allowance for expected credit loss | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(6,000,000)
Allowance for expected credit loss | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(39,000,000)	(37,000,000)	(36,000,000)
Allowance for expected credit loss | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(124,000,000)	(96,000,000)	(96,000,000)
Allowance for expected credit loss | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(14,000,000)
Allowance for expected credit loss | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(34,000,000)
Allowance for expected credit loss | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(4,000,000)
Allowance for expected credit loss | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(69,000,000)
Allowance for expected credit loss | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(64,000,000)
Allowance for expected credit loss | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(30,000,000)
Allowance for expected credit loss | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(30,000,000)
Allowance for expected credit loss | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(109,000,000)	(84,000,000)	(86,000,000)
Allowance for expected credit loss | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(55,000,000)	(54,000,000)	(59,000,000)
Allowance for expected credit loss | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(662,000,000)	(176,000,000)	(154,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(457,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(662,000,000)	(176,000,000)	(154,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(10,000,000)	(5,000,000)	(5,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,000,000)	(2,000,000)	(2,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(613,000,000)	(152,000,000)	(129,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(431,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(61,000,000)	(43,000,000)	(27,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(17,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(41,000,000)	(18,000,000)	(17,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(20,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(207,000,000)	(20,000,000)	(24,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(170,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(91,000,000)	(29,000,000)	(26,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(59,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(15,000,000)	(9,000,000)	(9,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(6,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(8,000,000)	(8,000,000)	(7,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(20,000,000)	(5,000,000)	(6,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(14,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(34,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(4,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(67,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(64,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(30,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(30,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(37,000,000)	(17,000,000)	(17,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(6,000,000)	(6,000,000)	(7,000,000)
Allowance for expected credit loss | Twelve-month expected credit losses | Stages 1 and 2 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(190,000,000)	(198,000,000)	(199,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(190,000,000)	(198,000,000)	(199,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(10,000,000)	(12,000,000)	(12,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,000,000)	0	(1,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(173,000,000)	(180,000,000)	(180,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(87,000,000)	(103,000,000)	(107,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(23,000,000)	(24,000,000)	(23,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(29,000,000)	(16,000,000)	(14,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(21,000,000)	(25,000,000)	(22,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11,000,000)	(10,000,000)	(10,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(7,000,000)	(6,000,000)	(6,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2,000,000)	(2,000,000)	(2,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stages 1 and 2 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(618,000,000)	(534,000,000)	(537,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(52,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(618,000,000)	(534,000,000)	(537,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(556,000,000)	(472,000,000)	(474,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(52,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(23,000,000)	(25,000,000)	(28,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(157,000,000)	(102,000,000)	(92,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(44,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(203,000,000)	(189,000,000)	(203,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(17,000,000)	(17,000,000)	(17,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(21,000,000)	(20,000,000)	(19,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(104,000,000)	(91,000,000)	(90,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(62,000,000)	(61,000,000)	(63,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(47,000,000)	(46,000,000)	(51,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	$ 0	$ 0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(31,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(31,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(31,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(28,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(28,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(24,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(24,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Financial intermediaries and hedge funds | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Sovereigns and public non-profit organizations | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing | Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(3,000,000)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	$ 0

Expected credit loss measurem_9

Expected credit loss measurement - Off-balance sheet financial assets subject to ECL (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	$ 340,634	$ 112,425	$ 112,050
Total ECL provisions	(367)	(214)	(201)
Total allowance and provisions	(1,868)	(1,121)	(1,091)
Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	225,021
Total allowance and provisions	(731)
Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	38,463	22,670	22,167
Total ECL provisions	(66)	(54)	(48)
Guarantees | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	8,358	3,476	3,663
Total ECL provisions	(19)	(19)	(26)
Guarantees | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,170	1,368	1,337
Total ECL provisions	(20)	(11)	(5)
Guarantees | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	12,874	13,076	11,833
Total ECL provisions	(11)	(11)	(12)
Guarantees | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,752	2,171	2,376
Total ECL provisions	(1)	(1)	(1)
Guarantees | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,200	1,815	2,121
Total ECL provisions	(1)	(1)	(1)
Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	124,281	39,775	39,996
Total ECL provisions	(225)	(113)	(111)
Irrevocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	77,160	23,294	23,611
Total ECL provisions	(198)	(95)	(93)
Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,972	4,748	3,801
Total ECL provisions	0	0	0
Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	168,556	41,071	41,390
Total ECL provisions	(74)	(44)	(40)
Unconditionally revocable loan commitments | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	17,107	8,226	8,711
Total ECL provisions	(12)	(6)	(6)
Unconditionally revocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,790	4,496	4,578
Total ECL provisions	(6)	(5)	(4)
Unconditionally revocable loan commitments | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	24,601	4,898	4,723
Total ECL provisions	(42)	(21)	(19)
Unconditionally revocable loan commitments | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	82,491	8,166	7,855
Total ECL provisions	0	0	0
Unconditionally revocable loan commitments | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	9,762	9,567	9,390
Total ECL provisions	(7)	(7)	(7)
Unconditionally revocable loan commitments | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		370	327
Total ECL provisions		0	0
Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,362	4,161	4,696
Total ECL provisions	(3)	(3)	(2)
Stages 1 and 2
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	1,199
Twelve-month expected credit losses | Stages 1 and 2
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	335,213	107,112	105,258
Total ECL provisions	(293)	(108)	(106)
Total allowance and provisions	(955)	(284)	(259)
Twelve-month expected credit losses | Stages 1 and 2 | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	224,604
Total allowance and provisions	(648)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	37,345	21,670	19,805
Total ECL provisions	(40)	(13)	(13)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	7,553	2,733	2,883
Total ECL provisions	(16)	(2)	(2)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	3,928	1,197	1,124
Total ECL provisions	(10)	(1)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	12,859	13,037	10,513
Total ECL provisions	(8)	(8)	(8)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,752	2,170	2,376
Total ECL provisions	0	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,200	1,815	2,121
Total ECL provisions	(1)	(1)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	121,789	37,261	37,531
Total ECL provisions	(186)	(57)	(59)
Twelve-month expected credit losses | Stages 1 and 2 | Irrevocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	75,044	21,263	21,488
Total ECL provisions	(165)	(47)	(49)
Twelve-month expected credit losses | Stages 1 and 2 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,972	4,748	3,801
Total ECL provisions	0	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	166,754	39,307	39,521
Total ECL provisions	(65)	(36)	(32)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	16,850	8,037	8,528
Total ECL provisions	(12)	(6)	(6)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,624	4,284	4,304
Total ECL provisions	(3)	(3)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	24,381	4,656	4,442
Total ECL provisions	(39)	(18)	(16)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	82,491	8,165	7,854
Total ECL provisions	0	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	9,274	9,078	8,900
Total ECL provisions	(6)	(5)	(5)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		370	327
Total ECL provisions		0	0
Twelve-month expected credit losses | Stages 1 and 2 | Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,353	4,126	4,600
Total ECL provisions	(2)	(3)	(2)
Lifetime expected credit losses | Stages 1 and 2
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,743	5,044	6,522
Total ECL provisions	(54)	(72)	(69)
Total allowance and provisions	(244)	(271)	(267)
Lifetime expected credit losses | Stages 1 and 2 | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total allowance and provisions	0
Lifetime expected credit losses | Stages 1 and 2 | Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	921	887	2,254
Total ECL provisions	(7)	(8)	(9)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	690	668	721
Total ECL provisions	(2)	(3)	(3)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	167	133	164
Total ECL provisions	(1)	(1)	(1)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	15	38	1,320
Total ECL provisions	(3)	(4)	(4)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,076	2,400	2,341
Total ECL provisions	(38)	(56)	(52)
Lifetime expected credit losses | Stages 1 and 2 | Irrevocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1,731	1,948	2,024
Total ECL provisions	(31)	(49)	(45)
Lifetime expected credit losses | Stages 1 and 2 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1,739	1,724	1,833
Total ECL provisions	(9)	(8)	(8)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	258	188	183
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	158	205	268
Total ECL provisions	(3)	(2)	(2)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	179	214	256
Total ECL provisions	(3)	(3)	(3)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	484	486	487
Total ECL provisions	(2)	(2)	(2)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		0	0
Total ECL provisions		0	0
Lifetime expected credit losses | Stages 1 and 2 | Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	7	33	94
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	261	269	270
Total ECL provisions	(19)	(33)	(26)
Total allowance and provisions	(637)	(567)	(564)
Lifetime expected credit losses | Stage 3 | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total allowance and provisions	(52)
Lifetime expected credit losses | Stage 3 | Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	118	113	108
Total ECL provisions	(17)	(33)	(26)
Lifetime expected credit losses | Stage 3 | Guarantees | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	79	75	58
Total ECL provisions	0	(14)	(21)
Lifetime expected credit losses | Stage 3 | Guarantees | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	38	38	49
Total ECL provisions	(9)	(9)	(3)
Lifetime expected credit losses | Stage 3 | Guarantees | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Guarantees | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1	1	1
Total ECL provisions	(1)	(1)	(1)
Lifetime expected credit losses | Stage 3 | Guarantees | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	78	114	124
Total ECL provisions	(2)	0	0
Lifetime expected credit losses | Stage 3 | Irrevocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	52	83	99
Total ECL provisions	(2)	0	0
Lifetime expected credit losses | Stage 3 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	63	40	36
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	0	0
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	7	7	5
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	40	28	26
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1	1	1
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4	3	3
Total ECL provisions	0	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		0	0
Total ECL provisions		0	0
Lifetime expected credit losses | Stage 3 | Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2	2	2
Total ECL provisions	0	$ 0	$ 0
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	417
Total ECL provisions	(1)
Total allowance and provisions	(32)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	417
Total allowance and provisions	(32)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	79
Total ECL provisions	(1)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	36
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	37
Total ECL provisions	2
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	338
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	333
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments | SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments | Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Unconditionally revocable loan commitments | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0
Total ECL provisions	$ 0

Expected credit loss measure_10

Expected credit loss measurement - Coverage ratios (Detail 1) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Credit Risk Exposure [Line Items]
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 992,931	$ 501,237	$ 498,921
ECL coverage	0.18%	0.21%	0.21%
Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.12%	0.10%	0.10%
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 964,532	$ 476,811	$ 474,045
ECL coverage	0.09%	0.06%	0.05%
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 22,462	$ 21,920	$ 22,418
ECL coverage	1.03%	1.16%	1.12%
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Credit Risk Exposure [Line Items]
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 2,862	$ 2,506	$ 2,458
ECL coverage	21.73%	22.02%	22.42%
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Credit Risk Exposure [Line Items]
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 3,075
ECL coverage	0.94%
Gross carrying amount | Total
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	$ 657,227	$ 393,560	$ 390,672
Gross carrying amount | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	255,495	159,580	157,091
Gross carrying amount | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	92,953	48,714	46,511
Gross carrying amount | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	348,448	208,294	203,602
Gross carrying amount | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	32,579	13,082	12,356
Gross carrying amount | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	29,909	13,853	14,154
Gross carrying amount | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	62,488	26,936	26,510
Gross carrying amount | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	168,745	128,985	132,313
Gross carrying amount | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,978	1,868	1,869
Gross carrying amount | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,074	3,149	3,367
Gross carrying amount | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,542
Gross carrying amount | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,170
Gross carrying amount | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	55,139	21,702	20,342
Gross carrying amount | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,643	2,626	2,670
Gross carrying amount | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	246,291	158,330	160,561
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	634,249	374,447	372,588
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	244,955	149,744	147,678
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	88,710	45,177	43,129
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	333,665	194,921	190,807
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	29,090	11,236	10,757
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	27,740	11,811	12,237
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	56,830	23,047	22,994
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	168,611	128,912	132,205
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,510	1,426	1,427
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,937	3,028	3,266
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,298
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,086
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	54,019	20,785	19,525
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,293	2,329	2,364
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	243,754	156,479	158,787
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17,719	16,876	15,896
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,445	9,102	8,686
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4,111	3,529	3,372
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	13,556	12,631	12,059
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,320	1,424	1,204
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,313	1,461	1,364
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,634	2,886	2,567
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	413	391	393
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	20	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	166
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	773	825	748
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	177	123	130
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,529	1,360	1,270
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,602	2,237	2,188
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	806	734	727
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	11	8	9
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	817	742	736
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	544	422	395
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	639	581	553
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,183	1,003	949
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	59	74	108
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	55	52	50
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	118	101	101
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	22
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	174	92	68
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	173	174	176
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	602	$ 492	$ 503
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,658
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	289
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	122
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	410
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,625
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	217
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,841
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	75
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	19
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	56
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	84
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	173
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	$ 406
Allowance for expected credit loss | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.22%	0.22%	0.22%
Allowance for expected credit loss | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.11%	0.10%
Allowance for expected credit loss | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.09%	0.09%
Allowance for expected credit loss | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.10%	0.10%
Allowance for expected credit loss | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.28%	1.06%	1.05%
Allowance for expected credit loss | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.05%	1.75%	1.77%
Allowance for expected credit loss | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.17%	1.42%	1.44%
Allowance for expected credit loss | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.02%	0.02%	0.02%
Allowance for expected credit loss | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.99%	2.01%	1.90%
Allowance for expected credit loss | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.44%	3.05%	2.85%
Allowance for expected credit loss | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.72%
Allowance for expected credit loss | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.96%
Allowance for expected credit loss | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.21%	0.23%	0.21%
Allowance for expected credit loss | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.08%	2.06%	2.21%
Allowance for expected credit loss | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.19%	0.17%	0.16%
Allowance for expected credit loss | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.12%	0.09%	0.08%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.06%	0.09%	0.09%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.09%	0.09%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.06%	0.09%	0.09%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.78%	0.29%	0.32%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.38%	0.41%	0.36%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.58%	0.35%	0.34%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.01%	0.01%	0.01%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.97%	0.99%	0.91%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.41%	0.17%	0.18%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.73%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.98%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.15%	0.10%	0.08%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.33%	0.32%	0.33%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.10%	0.04%	0.04%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.10%	0.04%	0.04%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.02%	0.03%	0.02%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.05%	0.04%	0.04%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.03%	0.03%	0.02%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.71%	0.18%	0.22%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.33%	0.25%	0.22%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.52%	0.22%	0.22%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.01%	0.01%	0.01%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.53%	0.56%	0.46%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.41%	0.18%	0.18%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.72%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.98%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.14%	0.09%	0.07%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.24%	0.26%	0.28%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.09%	0.03%	0.03%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.99%	1.08%	1.14%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.92%	1.13%	1.23%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.55%	0.69%	0.70%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.80%	1.01%	1.08%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.17%	1.15%	1.20%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.57%	1.68%	1.61%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.87%	1.42%	1.42%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%	0%	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.55%	2.55%	2.56%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	3.51%	0.11%	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.11%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.47%	0.24%	0.38%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.40%	1.45%	1.24%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.21%	1.01%	1.14%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	23.18%	23.19%	23.98%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.91%	3.44%	3.81%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.71%	0.22%	2.32%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.88%	3.41%	3.79%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	28.94%	24.24%	23.25%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	31.80%	32.53%	36.64%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	30.49%	29.04%	31.06%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	28.72%	22.86%	15.80%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	38.21%	37.93%	37.79%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	87.69%	90.01%	89.01%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	2.22%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	17.40%	31.17%	37.69%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	27.07%	26.59%	28.70%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	36.36%	41.09%	40.16%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.05%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.53%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.36%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.48%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.26%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.24%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.05%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.01%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.32%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.56%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.78%

Expected credit loss measure_11

Expected credit loss measurement - Coverage ratios (Detail 2) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 340,634	$ 112,425	$ 112,050
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 992,931	$ 501,237	$ 498,921
ECL coverage	0.18%	0.21%	0.21%
Total
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 335,704	$ 107,677	$ 108,249
ECL coverage	0.11%	0.20%	0.19%
Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 9,284	$ 6,377	$ 6,535
ECL coverage	0.04%	0.06%	0.05%
Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 18,031	$ 9,298	$ 10,054
ECL coverage	0.07%	0.07%	0.06%
Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 27,315	$ 15,675	$ 16,589
ECL coverage	0.06%	0.06%	0.06%
Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 90,393	$ 31,375	$ 32,126
ECL coverage	0.25%	0.38%	0.38%
Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 32,494	$ 7,674	$ 7,122
ECL coverage	0.23%	0.55%	0.47%
Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 122,887	$ 39,049	$ 39,247
ECL coverage	0.24%	0.41%	0.40%
Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 91,235	$ 12,456	$ 12,919
ECL coverage	0%	0.01%	0.02%
Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 9,763	$ 9,567	$ 9,390
ECL coverage	0.07%	0.08%	0.07%
Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 5,833	$ 2,187	$ 2,459
ECL coverage	0.06%	0.04%	0.03%
Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 1,731
ECL coverage	0.04%
Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 301
ECL coverage	0.34%
Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 46,786	$ 17,260	$ 15,841
ECL coverage	0.03%	0.08%	0.09%
Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 29,854	$ 11,483	$ 11,803
ECL coverage	0.08%	0.18%	0.11%
Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 185,502	$ 52,953	$ 52,412
ECL coverage	0.03%	0.08%	0.07%
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.12%	0.10%	0.10%
Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.10%	0.17%	0.16%
Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.04%	0.06%	0.04%
Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.07%	0.07%	0.06%
Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.06%	0.06%	0.06%
Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.25%	0.34%	0.32%
Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.21%	0.44%	0.43%
Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.24%	0.36%	0.34%
Stage 1 and 2 positions | Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0%	0.01%	0.01%
Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.08%	0.08%	0.07%
Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.06%	0.04%	0.03%
Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.04%
Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.34%
Stage 1 and 2 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.03%	0.08%	0.09%
Stage 1 and 2 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.05%	0.09%	0.09%
Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.02%	0.06%	0.06%
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 335,213	$ 107,112	$ 105,258
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 964,532	$ 476,811	$ 474,045
ECL coverage	0.09%	0.06%	0.05%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 330,283	$ 102,364	$ 101,457
ECL coverage	0.09%	0.11%	0.10%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 8,950	$ 6,163	$ 6,296
ECL coverage	0.03%	0.05%	0.04%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 17,751	$ 9,101	$ 9,779
ECL coverage	0.07%	0.08%	0.07%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 26,701	$ 15,263	$ 16,075
ECL coverage	0.06%	0.07%	0.06%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 87,307	$ 28,390	$ 28,950
ECL coverage	0.21%	0.18%	0.18%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 31,955	$ 7,124	$ 6,525
ECL coverage	0.18%	0.30%	0.30%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 119,262	$ 35,514	$ 35,475
ECL coverage	0.20%	0.21%	0.20%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 91,234	$ 12,455	$ 12,918
ECL coverage	0%	0.01%	0.01%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 9,274	$ 9,078	$ 8,900
ECL coverage	0.06%	0.06%	0.05%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 5,833	$ 2,187	$ 2,459
ECL coverage	0.06%	0.04%	0.03%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 1,731
ECL coverage	0.03%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 301
ECL coverage	0.34%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 46,406	$ 16,781	$ 14,177
ECL coverage	0.03%	0.05%	0.07%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 29,541	$ 11,086	$ 11,454
ECL coverage	0.04%	0.07%	0.08%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 184,320	$ 51,587	$ 49,907
ECL coverage	0.02%	0.05%	0.05%
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 4,743	$ 5,044	$ 6,522
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 22,462	$ 21,920	$ 22,418
ECL coverage	1.03%	1.16%	1.12%
Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 4,743	$ 5,044	$ 6,522
ECL coverage	1.14%	1.43%	1.06%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 324	$ 212	$ 236
ECL coverage	0.22%	0.28%	0.18%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 280	$ 197	$ 275
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 603	$ 409	$ 511
ECL coverage	0%	0%	0.02%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 2,580	$ 2,821	$ 3,013
ECL coverage	1.41%	1.90%	1.65%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 400	$ 470	$ 499
ECL coverage	2.57%	2.45%	2.14%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 2,980	$ 3,290	$ 3,513
ECL coverage	1.56%	1.98%	1.72%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0	$ 0	$ 0
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 484	$ 486	$ 487
ECL coverage	0.37%	0.36%	0.36%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0	$ 0	$ 0
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 380	$ 479	$ 1,664
ECL coverage	0.90%	0.80%	0.25%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 296	$ 380	$ 346
ECL coverage	0.95%	0.66%	0.68%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 1,160	$ 1,345	$ 2,498
ECL coverage	0.71%	0.60%	0.33%
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 261	$ 269	$ 270
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 2,862	$ 2,506	$ 2,458
ECL coverage	21.73%	22.02%	22.42%
Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 261	$ 269	$ 270
ECL coverage	7.37%	12.32%	9.80%
Lifetime expected credit losses | Stage 3 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 11	$ 3	$ 3
ECL coverage	0.60%	3.40%	11.83%
Lifetime expected credit losses | Stage 3 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0	$ 0	$ 0
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 11	$ 3	$ 3
ECL coverage	0.60%	3.40%	12.88%
Lifetime expected credit losses | Stage 3 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 138	$ 165	$ 163
ECL coverage	1.32%	8.30%	12.63%
Lifetime expected credit losses | Stage 3 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 95	$ 80	$ 98
ECL coverage	9.94%	11.14%	3.04%
Lifetime expected credit losses | Stage 3 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 233	$ 245	$ 260
ECL coverage	4.82%	9.23%	9.03%
Lifetime expected credit losses | Stage 3 positions | Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 1	$ 1	$ 1
ECL coverage	67.18%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 4	$ 3	$ 3
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0	$ 0	$ 0
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 3 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 3 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0	$ 0	$ 0
ECL coverage	0%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 11	$ 17	$ 3
ECL coverage	64.08%	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 17	$ 22	$ 7
ECL coverage	47.74%	0%	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 417
Financial Assets And Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts In Core Loan Portfolio	$ 3,075
ECL coverage	0.94%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 417
ECL coverage	0.22%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 369
ECL coverage	0.05%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 43
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 412
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Lombard loans
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 6
ECL coverage	42.44%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Total exposure	$ 6
ECL coverage	42.15%

FVM - Fair value hierarchy - As

FVM - Fair value hierarchy - Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	$ 151,098	$ 117,757	$ 107,866
Derivative financial assets	185,949	114,251	150,108
Brokerage receivables	21,537	21,025	17,576
Financial assets at fair value not held for trading	118,605	66,826	59,796
Financial assets measured at fair value through other comprehensive income	2,217	2,241	2,239
Non-financial assets - Precious metals and other physical commodities	5,794	4,506	4,471
Other non-financial assets measured at fair value	90	109	110
Total assets measured at fair value	485,291	326,714	342,166
Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	63,200
Total assets measured at fair value	151,301
Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	98,329	88,194	83,988
Financial assets at fair value not held for trading	3,348	949	849
Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	25,518	10,460	6,464
Financial assets at fair value not held for trading	20,120	20,965	16,741
Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	7,043	7,733	7,330
Financial assets at fair value not held for trading	1,519	1,081	1,063
Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	13,897	8,867	7,880
Financial assets at fair value not held for trading	13,093	13,928	14,366
Financial assets measured at fair value through other comprehensive income	282	293	335
Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	3,899	2,141	1,807
Financial assets at fair value not held for trading	18,256	4,516	4,337
Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	2,391	360	397
Foreign exchange
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	74,686	52,249	85,458
Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	63,711	36,737	39,805
Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	39,652	21,759	22,195
Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	5,382	1,253	1,038
Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	1,720	1,800	1,365
Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	1,321	1,321	1,326
Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	43,907	9,779	7,704
Financial assets for unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	14,973	14,101	13,072
Commercial paper and certificates of deposit
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets measured at fair value through other comprehensive income	1,926	1,921	1,878
Level 1
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	117,863	104,793	96,241
Derivative financial assets	1,072	879	769
Brokerage receivables	0	0	0
Financial assets at fair value not held for trading	31,358	32,279	26,572
Financial assets measured at fair value through other comprehensive income	65	60	57
Non-financial assets - Precious metals and other physical commodities	5,794	4,506	4,471
Other non-financial assets measured at fair value	0	0	0
Total assets measured at fair value	156,152	142,516	128,110
Level 1 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	15,168
Level 1 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	96,546	87,723	83,074
Financial assets at fair value not held for trading	29	70	57
Level 1 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	13,586	8,902	5,496
Financial assets at fair value not held for trading	16,144	17,824	13,103
Level 1 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	6,123	7,187	6,673
Financial assets at fair value not held for trading	321	295	307
Level 1 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,592	977	976
Financial assets at fair value not held for trading	61	86	35
Financial assets measured at fair value through other comprehensive income	65	60	57
Level 1 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	0	0	0
Financial assets at fair value not held for trading	0	0	0
Level 1 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	15	4	22
Level 1 | Foreign exchange
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	576	515	575
Level 1 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	0	0	0
Level 1 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	1	1	1
Level 1 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	0	0	0
Level 1 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	7	0	0
Level 1 | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	0	0	0
Level 1 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	0	0	0
Level 1 | Financial assets for unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	14,802	14,004	13,071
Level 1 | Commercial paper and certificates of deposit
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets measured at fair value through other comprehensive income	0	0	0
Level 2
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	30,122	11,865	10,138
Derivative financial assets	181,900	112,064	147,875
Brokerage receivables	21,537	21,025	17,576
Financial assets at fair value not held for trading	71,889	30,713	29,498
Financial assets measured at fair value through other comprehensive income	2,152	2,181	2,182
Non-financial assets - Precious metals and other physical commodities	0	0	0
Other non-financial assets measured at fair value	1	0	0
Total assets measured at fair value	307,601	177,847	207,269
Level 2 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	121,363
Level 2 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,330	295	789
Financial assets at fair value not held for trading	227	0	0
Level 2 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	11,865	1,534	950
Financial assets at fair value not held for trading	3,976	3,140	3,638
Level 2 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	773	536	596
Financial assets at fair value not held for trading	516	498	566
Level 2 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	11,310	7,449	6,363
Financial assets at fair value not held for trading	12,673	13,601	14,101
Financial assets measured at fair value through other comprehensive income	217	233	278
Level 2 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	2,854	1,812	1,179
Financial assets at fair value not held for trading	10,395	3,706	3,602
Level 2 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,970	239	261
Level 2 | Foreign exchange
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	73,686	51,731	84,881
Level 2 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	62,950	36,339	39,345
Level 2 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	38,544	21,180	21,542
Level 2 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	4,802	944	719
Level 2 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	1,686	1,780	1,334
Level 2 | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	0	0	0
Level 2 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	43,798	9,670	7,590
Level 2 | Financial assets for unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	171	97	1
Level 2 | Commercial paper and certificates of deposit
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets measured at fair value through other comprehensive income	1,926	1,921	1,878
Level 3
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	3,113	1,099	1,488
Derivative financial assets	2,978	1,309	1,464
Brokerage receivables	0	0	0
Financial assets at fair value not held for trading	15,358	3,834	3,725
Financial assets measured at fair value through other comprehensive income	0	0	0
Non-financial assets - Precious metals and other physical commodities	0	0	0
Other non-financial assets measured at fair value	89	109	110
Total assets measured at fair value	21,538	6,351	6,788
Level 3 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	14,769
Level 3 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	454	177	126
Financial assets at fair value not held for trading	3,092	879	792
Level 3 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	67	23	18
Financial assets at fair value not held for trading	0	0	0
Level 3 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	146	10	61
Financial assets at fair value not held for trading	683	288	190
Level 3 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	995	442	541
Financial assets at fair value not held for trading	359	241	230
Financial assets measured at fair value through other comprehensive income	0	0	0
Level 3 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,045	329	628
Financial assets at fair value not held for trading	7,861	810	736
Level 3 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	406	118	114
Level 3 | Foreign exchange
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	425	3	2
Level 3 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	761	398	460
Level 3 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	1,108	578	653
Level 3 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	580	309	318
Level 3 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial assets	28	20	30
Level 3 | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	1,321	1,321	1,326
Level 3 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	109	108	114
Level 3 | Financial assets for unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	0	0	0
Level 3 | Commercial paper and certificates of deposit
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets measured at fair value through other comprehensive income	$ 0	$ 0	$ 0

FVM - Fair value hierarchy - Li

FVM - Fair value hierarchy - Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	$ 40,364	$ 34,374	$ 29,515
Derivative financial liabilities	193,147	116,113	154,906
Brokerage payables designated at fair value	43,852	43,911	45,085
Debt issued designated at fair value	125,050	77,233	73,638
Other financial liabilities designated at fair value	36,122	25,758	30,237
Total financial liabilities measured at fair value through profit or loss	438,534	297,390	333,381
Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	66,700
Other financial liabilities designated at fair value	6,996
Total financial liabilities measured at fair value through profit or loss	121,646
Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	23,378	19,839	16,951
Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	5,731	4,681	4,707
Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	10,115	8,647	6,587
Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	1,106	1,176	1,229
Foreign exchange
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	76,580	53,267	88,508
Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	62,045	34,677	37,545
Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	45,284	24,573	26,148
Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	6,235	1,343	1,199
Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	1,728	1,625	1,361
Financial liabilities related to unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	15,124	14,243	13,221
Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	13,295	9,707	15,333
Over-the-counter debt instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	7,703	1,809	1,684
Level 1
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	33,231	28,332	23,578
Derivative financial liabilities	1,007	967	640
Brokerage payables designated at fair value	0	0	0
Debt issued designated at fair value	0	0	0
Other financial liabilities designated at fair value	0	0	0
Total financial liabilities measured at fair value through profit or loss	34,238	29,299	24,219
Level 1 | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Total financial liabilities measured at fair value through profit or loss	4,442
Level 1 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	22,984	19,411	16,521
Level 1 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	32	33	36
Level 1 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	9,159	7,919	5,880
Level 1 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	1,057	969	1,141
Level 1 | Foreign exchange
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	591	529	587
Level 1 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	0	0	0
Level 1 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	0	1	0
Level 1 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	2	0	0
Level 1 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	6	0	0
Level 1 | Financial liabilities related to unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	0	0	0
Level 1 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	0	0	0
Level 1 | Over-the-counter debt instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	0	0	0
Level 2
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	6,983	5,941	5,823
Derivative financial liabilities	186,797	113,051	152,582
Brokerage payables designated at fair value	43,852	43,911	45,085
Debt issued designated at fair value	105,951	66,748	63,111
Other financial liabilities designated at fair value	33,097	25,180	29,547
Total financial liabilities measured at fair value through profit or loss	376,680	254,831	296,148
Level 2 | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Total financial liabilities measured at fair value through profit or loss	103,921
Level 2 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	311	370	352
Level 2 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	5,639	4,610	4,643
Level 2 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	957	728	706
Level 2 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	46	204	84
Level 2 | Foreign exchange
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	75,856	52,706	87,897
Level 2 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	61,690	34,317	37,429
Level 2 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	41,569	23,207	24,963
Level 2 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	5,629	1,057	920
Level 2 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	1,685	1,592	1,309
Level 2 | Financial liabilities related to unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	15,124	14,243	13,221
Level 2 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	13,295	9,707	15,333
Level 2 | Over-the-counter debt instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	4,678	1,230	993
Level 3
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	150	101	114
Derivative financial liabilities	5,343	2,095	1,684
Brokerage payables designated at fair value	0	0	0
Debt issued designated at fair value	19,099	10,485	10,527
Other financial liabilities designated at fair value	3,025	579	691
Total financial liabilities measured at fair value through profit or loss	27,616	13,260	13,015
Level 3 | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Total financial liabilities measured at fair value through profit or loss	13,284
Level 3 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	83	58	78
Level 3 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	61	38	27
Level 3 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	0	0	1
Level 3 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	3	3	3
Level 3 | Foreign exchange
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	132	33	24
Level 3 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	355	360	116
Level 3 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	3,714	1,365	1,184
Level 3 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	605	286	279
Level 3 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial liabilities	37	33	52
Level 3 | Financial liabilities related to unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	0	0	0
Level 3 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	0	0	0
Level 3 | Over-the-counter debt instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	$ 3,025	$ 579	$ 691

FVM - Valuation adjustments res

FVM - Valuation adjustments reserves on the balance sheet (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Valuation Adjustment Reserves On The Balance Sheet [Line Items]
Own credit adjustments on financial liabilities designated at fair value	$ 142	$ 624	$ 556
of which: debt issued designated at fair value	46	495	453
of which: other financial liabilities designated at fair value	96	129	103
Credit valuation adjustments	(151)	(33)	(33)
Funding / Debit valuation adjustments	(172)	(101)	(46)
Other valuation adjustments	(2,911)	(801)	(839)
of which: liquidity	(1,905)	(299)	(311)
of which: model uncertainty	(1,005)	$ (502)	$ (529)
Credit Suisse
Valuation Adjustment Reserves On The Balance Sheet [Line Items]
Own credit adjustments on financial liabilities designated at fair value	(221)
Credit valuation adjustments	117
Funding / Debit valuation adjustments	73
of which: liquidity	1,630
of which: model uncertainty	$ 555

FVM - Valuation adjustments_ De

FVM - Valuation adjustments: Deferred day-1 P&L (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Deferred Day-1 Profit Or Loss [Line Items]
Reserve balance at the beginning of the period	$ 399	$ 422	$ 425	$ 422	$ 418
Profit / (loss) deferred on new transactions	78	91	86	169	161
(Profit) / loss recognized in the income statement	(75)	(113)	(58)	(188)	(127)
Foreign currency translation	(1)	0	(1)	(1)	(1)
Reserve balance at the end of the period	$ 402	$ 399	$ 451	$ 402	$ 451

FVM - Level 3 instruments_ Valu

FVM - Level 3 instruments: Valuation techniques and inputs (Detail) - Level 3 $ in Billions	3 Months Ended
	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 1.4	$ 0.8
Financial liabilities measured at fair value	$ 0.1	$ 0
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Relative value to market comparable | Bond price equivalent (% of par) | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.04	0.14
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Relative value to market comparable | Bond price equivalent (% of par) | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1.01	1.12
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Relative value to market comparable | Bond price equivalent (% of par) | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.94	0.85
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Discounted expected cash flows | Discount margin | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0200	0.0412
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Discounted expected cash flows | Discount margin | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0391	0.0412
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Corporate and municipal bonds | Discounted expected cash flows | Discount margin | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0376
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 9.2	$ 1.7
Financial liabilities measured at fair value	$ 0	$ 0
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Relative value to market comparable | Loan price equivalent (% of par) | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0	0.30
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Relative value to market comparable | Loan price equivalent (% of par) | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1.40	1
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Relative value to market comparable | Loan price equivalent (% of par) | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.87	0.97
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Discounted expected cash flows | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0060	0.0200
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Discounted expected cash flows | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.3263	0.0200
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Discounted expected cash flows | Credit spread | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0347	0.0200
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Market comparable and securitization model | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0165	0.0145
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Market comparable and securitization model | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.1544	0.1350
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Market comparable and securitization model | Credit spread | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0349	0.0322
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Option model | Gap risk | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Option model | Gap risk | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.02
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Traded loans, loans mandatorily at fair value, loan commitments and guarantees | Option model | Gap risk | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Auction rate securities
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 1.3	$ 1.3
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Auction rate securities | Discounted expected cash flows | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0115	0.0115
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Auction rate securities | Discounted expected cash flows | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0209	0.0196
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Auction rate securities | Discounted expected cash flows | Credit spread | weighted average
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0156	0.0144
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Investment fund units
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 0.8	$ 0.3
Financial liabilities measured at fair value	0	0
Financial assets and liabilities at fair value held for trading, Financial assets at fair value not held for trading: Equity instruments
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	3.5	0.9
Financial liabilities measured at fair value	0.1	0.1
Debt issued designated at fair value
Disclosure Of Fair Value Measurement [Line Items]
Financial liabilities measured at fair value	19.1	10.5
Other financial liabilities designated at fair value
Disclosure Of Fair Value Measurement [Line Items]
Financial liabilities measured at fair value	$ 3	$ 0.7
Other financial liabilities designated at fair value | Discounted expected cash flows | Funding spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0025	0.0023
Other financial liabilities designated at fair value | Discounted expected cash flows | Funding spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0175	0.0175
Derivative financial instruments: Interest rate contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 0.8	$ 0.5
Financial liabilities measured at fair value	$ 0.3	$ 0.1
Derivative financial instruments: Interest rate contracts | Option model | Volatility of inflation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0
Derivative financial instruments: Interest rate contracts | Option model | Volatility of inflation | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.06
Derivative financial instruments: Interest rate contracts | Option model | IR-to-IR correlation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	(0.01)
Derivative financial instruments: Interest rate contracts | Option model | IR-to-IR correlation | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1
Derivative financial instruments: Interest rate contracts | Option model | Volatility of interest rates | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0055	0.0075
Derivative financial instruments: Interest rate contracts | Option model | Volatility of interest rates | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0161	0.0143
Derivative financial instruments: Credit derivative contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 0.6	$ 0.3
Financial liabilities measured at fair value	$ 0.7	$ 0.3
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Bond price equivalent (% of par) | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.03	0.03
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Bond price equivalent (% of par) | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	2.81	2.77
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0005	0.0009
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0538	0.0565
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Recovery rates | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.01
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Recovery rates | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1
Derivative financial instruments: Credit derivative contracts | Option model | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0017
Derivative financial instruments: Credit derivative contracts | Option model | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0707
Derivative financial instruments: Equity / index contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 1.1	$ 0.7
Financial liabilities measured at fair value	$ 3.8	$ 1.2
Derivative financial instruments: Equity / index contracts | Option model | Equity dividend yields | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0	0
Derivative financial instruments: Equity / index contracts | Option model | Equity dividend yields | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.10	0.20
Derivative financial instruments: Equity / index contracts | Option model | Volatility of equity stocks, equity and other indices | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.04	0.04
Derivative financial instruments: Equity / index contracts | Option model | Volatility of equity stocks, equity and other indices | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1.38	1.20
Derivative financial instruments: Equity / index contracts | Option model | Equity-to-equity correlation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	(0.25)	(0.25)
Derivative financial instruments: Equity / index contracts | Option model | Equity-to-equity correlation | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	1	1
Derivative financial instruments: Equity / index contracts | Option model | Equity-to-FX correlation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	(0.40)	(0.29)
Derivative financial instruments: Equity / index contracts | Option model | Equity-to-FX correlation | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.84	0.84

FVM - Level 3 instruments_ Sens

FVM - Level 3 instruments: Sensitivity to changes in unobservable input assumptions (Detail) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	$ 2,308	$ 791	$ 738
Unfavorable changes	(1,978)	(744)	(696)
Credit Suisse
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	1,578
Unfavorable changes	(1,312)
Traded loans, loans measured at fair value, loan commitments and guarantees
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	325	12	19
Unfavorable changes	(234)	(13)	(12)
Securities financing transactions
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	37	27	33
Unfavorable changes	(37)	(29)	(37)
Auction rate securities
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	44	45	46
Unfavorable changes	(44)	(45)	(46)
Asset-backed securities
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	48	29	27
Unfavorable changes	(47)	(27)	(27)
Equity instruments
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	483	188	183
Unfavorable changes	(397)	(164)	(161)
Investment fund units
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	127	29	19
Unfavorable changes	(129)	(30)	(21)
Interest rate derivative contracts, net
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	221	20	18
Unfavorable changes	(111)	(13)	(12)
Credit derivative contracts, net
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	75	3	3
Unfavorable changes	(67)	(5)	(4)
Foreign exchange derivative contracts, net
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	6	4	10
Unfavorable changes	(6)	(5)	(5)
Equity / index derivative contracts, net
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	646	371	361
Unfavorable changes	(614)	(338)	(330)
Other
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	296	63	20
Unfavorable changes	$ (292)	$ (74)	$ (41)

FVM - Movements of level 3 inst

FVM - Movements of level 3 instruments - Assets (Detail) - Level 3 - USD ($) $ in Billions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	$ 0.3
Balance at the end of the period	0.8
Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.8
Balance at the end of the period	1.4
Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.9
Balance at the end of the period	3.5
Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1.3
Balance at the end of the period	1.3
Financial assets at fair value held for trading
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1.5	$ 2.3
Credit Suisse assets acquired	2.2
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.5)	(0.1)
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.5)	(0.2)
Purchases	0.5	0.3
Sales	(1.1)	(1.3)
Issuances	0.7	1
Settlements	0	0
Transfers into Level 3	0.1	0.1
Transfers out of Level 3	(0.3)	(0.3)
Foreign currency translation	0	0
Balance at the end of the period	3.1	1.9
Financial assets at fair value held for trading | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.1	0
Credit Suisse assets acquired	0.1
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	0
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of the period	0.1	0
Financial assets at fair value held for trading | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.5	0.6
Credit Suisse assets acquired	1.1
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.4)	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.4)	0
Purchases	0.3	0.2
Sales	(0.6)	(0.1)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of the period	1	0.7
Financial assets at fair value held for trading | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.6	1.4
Credit Suisse assets acquired	0.2
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	(0.1)
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	(0.1)
Purchases	0	0
Sales	(0.3)	(1.2)
Issuances	0.7	1
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	(0.2)	(0.2)
Foreign currency translation	0	0
Balance at the end of the period	1	1
Derivative financial instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1.5	1.1
Credit Suisse assets acquired	1.4
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.1)	0.5
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.1)	0.6
Purchases	0	0
Sales	0	0
Issuances	0.5	0.5
Settlements	(0.3)	(0.4)
Transfers into Level 3	0.1	0.2
Transfers out of Level 3	(0.2)	(0.2)
Foreign currency translation	0	0
Balance at the end of the period	3	1.8
Derivative financial instruments | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.5	0.5
Credit Suisse assets acquired	0.2
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0.1	0.1
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0.1	0.1
Purchases	0	0
Sales	0	0
Issuances	0.1	0
Settlements	0	(0.1)
Transfers into Level 3	0	0.1
Transfers out of Level 3	0	(0.1)
Foreign currency translation	0	0
Balance at the end of the period	0.8	0.4
Derivative financial instruments | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.7	0.4
Credit Suisse assets acquired	0.5
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.1)	0.3
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.1)	0.3
Purchases	0	0
Sales	0	0
Issuances	0.3	0.2
Settlements	(0.2)	(0.2)
Transfers into Level 3	0	0
Transfers out of Level 3	(0.2)	0
Foreign currency translation	0	0
Balance at the end of the period	1.1	0.7
Derivative financial instruments | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.3	0.2
Credit Suisse assets acquired	0.2
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	0.1
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	0.1
Purchases	0	0
Sales	0	0
Issuances	0.1	0.2
Settlements	0	0
Transfers into Level 3	0	0.1
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of the period	0.6	0.6
Financial assets at fair value not held for trading
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	3.7	4.2
Credit Suisse assets acquired	11.6
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.1)	0.1
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.2)	0.1
Purchases	0.7	0.6
Sales	(0.5)	(0.6)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0.1	0
Transfers out of Level 3	(0.1)	(0.1)
Foreign currency translation	0	(0.1)
Balance at the end of the period	15.4	4.2
Financial assets at fair value not held for trading | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.7	0.9
Credit Suisse assets acquired	7.1
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(0.1)	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(0.1)	0
Purchases	0.4	0.5
Sales	(0.1)	(0.2)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	(0.1)	(0.1)
Foreign currency translation	0	0
Balance at the end of the period	7.9	1
Financial assets at fair value not held for trading | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	0.8	0.7
Credit Suisse assets acquired	2.1
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	0
Purchases	0.2	0
Sales	(0.1)	(0.1)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of the period	3.1	0.7
Financial assets at fair value not held for trading | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1.3	1.6
Credit Suisse assets acquired	0
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	0.1
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	0.1
Purchases	0	0
Sales	0	0
Issuances	0	0
Settlements	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of the period	$ 1.3	$ 1.6

FVM - Movements of level 3 in_2

FVM - Movements of level 3 instruments - Liabilities (Detail) - Level 3 - USD ($) $ in Billions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Derivative financial instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	$ 1.7	$ 2.2
Credit Suisse liabilities acquired	2.8
Total gains / losses included in comprehensive income - Net gains / losses included in income	0.6	(0.6)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0.5	(0.6)
Purchases	0	0
Sales	0	0
Issuances	0.8	0.9
Settlements	(0.4)	(0.8)
Transfers into Level 3	0.1	0.1
Transfers out of Level 3	(0.3)	(0.1)
Foreign currency translation	0	(0.1)
Balance at the end of period	5.3	1.7
Derivative financial instruments | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	0.1	0.3
Credit Suisse liabilities acquired	0.2
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	(0.2)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	(0.2)
Purchases	0	0
Sales	0	0
Issuances	0.1	0.1
Settlements	(0.1)	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of period	0.4	0.1
Derivative financial instruments | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	1.2	1.5
Credit Suisse liabilities acquired	1.7
Total gains / losses included in comprehensive income - Net gains / losses included in income	0.5	(0.3)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0.5	(0.3)
Purchases	0	0
Sales	0	0
Issuances	0.6	0.6
Settlements	(0.3)	(0.7)
Transfers into Level 3	0	0
Transfers out of Level 3	(0.1)	(0.1)
Foreign currency translation	0	0
Balance at the end of period	3.7	1.1
Derivative financial instruments | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	0.3	0.3
Credit Suisse liabilities acquired	0.3
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	(0.1)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	(0.1)
Purchases	0	0
Sales	0	0
Issuances	0.1	0.1
Settlements	0	0
Transfers into Level 3	0.1	0.1
Transfers out of Level 3	(0.2)	0
Foreign currency translation	0	0
Balance at the end of period	0.6	0.4
Debt issued designated at fair value
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	10.5	14.2
Credit Suisse liabilities acquired	8.5
Total gains / losses included in comprehensive income - Net gains / losses included in income	0.4	(2.5)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0.4	(2.3)
Purchases	0	0
Sales	0	0
Issuances	2.4	4.2
Settlements	(2.5)	(2.7)
Transfers into Level 3	0.6	0.7
Transfers out of Level 3	(0.8)	(1.5)
Foreign currency translation	0	(0.4)
Balance at the end of period	19.1	12
Other financial liabilities designated at fair value
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	0.7	0.8
Credit Suisse liabilities acquired	2.1
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	0
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	0
Purchases	0	0
Sales	0	0
Issuances	0.2	0.2
Settlements	(0.1)	(0.1)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of period	$ 3	$ 0.9

FVM - Financial instruments not

FVM - Financial instruments not measured at fair value - Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Instruments [Abstract]
Cash and balances at central banks	$ 261,587	$ 144,183	$ 169,445
Amounts due from banks	24,392	14,901	14,792
Receivables from securities financing transactions measured at amortized cost	86,538	60,010	67,814
Cash collateral receivables on derivative instruments	54,314	32,726	35,032
Loans and advances to customers	651,770	390,130	387,220
Other financial assets measured at amortized cost	64,928	49,179	53,264
Not measured at fair value
Disclosure Of Financial Instruments [Abstract]
Cash and balances at central banks	261,600	144,200	169,400
Amounts due from banks	24,300	15,000	14,800
Receivables from securities financing transactions measured at amortized cost	86,600	60,000	67,800
Cash collateral receivables on derivative instruments	54,300	32,600	35,000
Loans and advances to customers	639,300	378,500	374,900
Other financial assets measured at amortized cost	$ 62,500	$ 47,200	$ 50,800

FVM - Financial instruments n_2

FVM - Financial instruments not measured at fair value - Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Amounts due to banks	$ 99,167	$ 13,595	$ 11,596
Payables from securities financing transactions measured at amortized cost	22,297	9,870	4,202
Cash collateral payables on derivative instruments	41,416	32,238	36,436
Customer deposits	712,546	505,581	525,051
Debt issued measured at amortized cost	230,857	116,312	114,621
Other financial liabilities measured at amortized cost excluding lease liabilities	13,600	7,000	6,200
Not measured at fair value
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Amounts due to banks	99,200	13,600	11,600
Payables from securities financing transactions measured at amortized cost	22,300	9,900	4,200
Cash collateral payables on derivative instruments	41,400	32,200	36,400
Customer deposits	712,300	504,900	524,800
Debt issued measured at amortized cost	229,900	113,700	113,500
Other financial liabilities measured at amortized cost excluding lease liabilities	$ 13,700	$ 7,000	$ 6,200

Derivative instruments (Detail)

Derivative instruments (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative financial assets	$ 185,949	$ 114,251	$ 150,108
Derivative financial liabilities	193,147	116,113	154,906
Other notional values	26,040,000	13,993,000	11,376,000
Notional values related to derivative financial assets and liabilities	13,010,000	10,224,000	9,302,000
Credit Suisse
Derivative [Line Items]
Derivative financial assets	63,200
Derivative financial liabilities	66,700
Other notional values	10,689,000
Notional values related to derivative financial assets and liabilities	2,804,000
Interest rate
Derivative [Line Items]
Derivative financial assets	63,700	36,700	39,800
Derivative financial liabilities	62,000	34,700	37,500
Other notional values	25,438,000	13,842,000	11,255,000
Notional values related to derivative financial assets and liabilities	3,788,000	2,345,000	2,080,000
Notional values related to derivative financial assets and liabilities related to over-the-counter derivatives	225,000
Credit derivative
Derivative [Line Items]
Derivative financial assets	5,400	1,300	1,000
Derivative financial liabilities	6,200	1,300	1,200
Notional values related to derivative financial assets and liabilities	379,000	86,000	74,000
Foreign exchange
Derivative [Line Items]
Derivative financial assets	74,700	52,200	85,500
Derivative financial liabilities	76,600	53,300	88,500
Other notional values	82,000	56,000	40,000
Notional values related to derivative financial assets and liabilities	7,350,000	6,610,000	6,080,000
Equity / index
Derivative [Line Items]
Derivative financial assets	39,700	21,800	22,200
Derivative financial liabilities	45,300	24,600	26,100
Other notional values	497,000	76,000	63,000
Notional values related to derivative financial assets and liabilities	1,192,000	932,000	886,000
Commodity
Derivative [Line Items]
Derivative financial assets	1,700	1,800	1,400
Derivative financial liabilities	1,700	1,600	1,400
Other notional values	23,000	19,000	18,000
Notional values related to derivative financial assets and liabilities	159,000	146,000	132,000
Other
Derivative [Line Items]
Derivative financial assets	800	400	200
Derivative financial liabilities	1,300	600	100
Notional values related to derivative financial assets and liabilities	$ 140,000	$ 106,000	$ 50,000

Offsetting financial assets (De

Offsetting financial assets (Detail) - USD ($) $ in Billions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Derivative financial instruments
Disclosure Of Offsetting Of Financial Assets [Line Items]
Assets based on IFRS netting	$ 185.9	$ 114.3	$ 150.1
Further netting potential not recognized on the balance sheet	(170)	(105.4)	(139.4)
of which: netting of recognized financial liabilities	(140)	(84.9)	(110.9)
of which: netting with collateral received	(30)	(20.5)	(28.5)
Assets, after consideration of further netting potential	15.9	8.8	10.7
Cash collateral receivables on derivative instruments
Disclosure Of Offsetting Of Financial Assets [Line Items]
Assets based on IFRS netting	54.3	32.7	35
Further netting potential not recognized on the balance sheet	(34.1)	(18.6)	(22.9)
of which: netting of recognized financial liabilities	(30.4)	(15.6)	(20.9)
of which: netting with collateral received	(3.8)	(3)	(1.9)
Assets, after consideration of further netting potential	20.2	$ 14.1	$ 12.1
Cash collateral receivables on derivative instruments | Credit Suisse
Disclosure Of Offsetting Of Financial Assets [Line Items]
Assets based on IFRS netting	$ 19.3

Offsetting financial liabilitie

Offsetting financial liabilities (Detail) - USD ($) $ in Billions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Derivative financial instruments
Disclosure Of Offsetting Of Financial Liabilities [Line Items]
Liabilities based on IFRS netting	$ 193.1	$ 116.1	$ 154.9
Further netting potential not recognized on the balance sheet	(174.9)	(104.3)	(137.1)
of which: netting of recognized financial assets	(140)	(84.9)	(110.9)
of which: netting with collateral pledged	(34.9)	(19.4)	(26.2)
Liabilities, after consideration of further netting potential	18.2	11.8	17.8
Cash collateral payables on derivative instruments
Disclosure Of Offsetting Of Financial Liabilities [Line Items]
Liabilities based on IFRS netting	41.4	32.2	36.4
Further netting potential not recognized on the balance sheet	(26.7)	(17.3)	(21.9)
of which: netting of recognized financial assets	(22.9)	(14.3)	(20)
of which: netting with collateral pledged	(3.8)	(3)	(1.9)
Liabilities, after consideration of further netting potential	14.7	$ 14.9	$ 14.5
Cash collateral payables on derivative instruments | Credit Suisse
Disclosure Of Offsetting Of Financial Liabilities [Line Items]
Liabilities based on IFRS netting	$ 10

Other financial assets measured

Other financial assets measured at amortized cost (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Assets [Line Item]
Debt securities	$ 43,664	$ 40,646	$ 44,594
Loans to financial advisors	2,588	2,571	2,611
Fee- and commission-related receivables	2,774	1,927	1,812
Finance lease receivables	5,868	1,345	1,315
Settlement and clearing accounts	811	542	1,175
Accrued interest income	2,746	1,300	1,259
Other	6,477	847	499
Total other financial assets measured at amortized cost	64,928	$ 49,179	$ 53,264
Credit Suisse
Disclosure Of Financial Assets [Line Item]
Total other financial assets measured at amortized cost	$ 12,841

Other non-financial assets (Det

Other non-financial assets (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Other Non-Financial Assets [Line Items]
Precious metals and other physical commodities	$ 5,794	$ 4,506	$ 4,471
Deposits and collateral provided in connection with litigation, regulatory and similar matters	3,006	2,235	2,205
Prepaid expenses	3,138	1,265	1,076
Current tax assets	1,331	167	182
VAT, withholding tax and other tax receivables	1,279	1,733	1,286
Properties and other non-current assets held for sale	485	370	369
Other	1,885	681	578
Total other non-financial assets	16,919	$ 10,958	$ 10,166
Credit Suisse
Other Non-Financial Assets [Line Items]
Total other non-financial assets	$ 6,971

Other financial liabilities mea

Other financial liabilities measured at amortized cost (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Other accrued expenses	$ 3,653	$ 1,895	$ 1,760
Accrued interest expenses	4,639	1,920	1,949
Settlement and clearing accounts	1,931	1,548	1,075
Lease liabilities	5,810	3,294	3,334
Other	3,370	1,634	1,457
Total other financial liabilities measured at amortized cost	19,403	$ 10,292	$ 9,575
Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Total other financial liabilities measured at amortized cost	$ 7,415

Other financial liabilities des

Other financial liabilities designated at fair value (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Financial liabilities related to unit-linked investment contracts	$ 15,124	$ 14,243	$ 13,221
Securities financing transactions	13,295	9,707	15,333
Over-the-counter debt instruments and other	7,703	1,809	1,684
Total other financial liabilities designated at fair value	36,122	$ 25,758	$ 30,237
Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Total other financial liabilities designated at fair value	$ 6,996

Other non-financial liabilities

Other non-financial liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Other Non-Financial Liabilities [Line Items]
Compensation-related liabilities	$ 7,310	$ 4,550	$ 6,822
of which: net defined benefit liability	777	485	469
Current tax liabilities	1,630	968	1,071
Deferred tax liabilities	434	266	236
VAT, withholding tax and other tax payables	822	676	592
Deferred Income	828	290	235
Other	970	62	84
Total other non-financial liabilities	11,994	$ 6,811	$ 9,040
Credit Suisse
Other Non-Financial Liabilities [Line Items]
Total other non-financial liabilities	$ 4,383

Debt issued designated at fai_3

Debt issued designated at fair value (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Issued debt instruments
Equity-linked	$ 64,446	$ 44,721	$ 41,901
Rates-linked and fixed-rate	42,676	22,470	22,814
Credit-linked	7,655	2,815	2,170
Commodity-linked	4,234	4,311	4,294
Other	6,039	2,916	2,459
of which: debt that contributes to total loss-absorbing capacity	4,287	2,477	1,959
Total debt issued designated at fair value	125,050	77,233	73,638
of which: issued by UBS AG with original maturity greater than one year	64,047	$ 60,268	$ 57,750
of which: issued by Credit Suisse AG with original maturity greater than one year	34,814
of which: issued by Credit Suisse International with original maturity greater than one year	$ 1,561
Unsecured portion of debt instruments issued by UBS AG with original maturity greater than one year	100%	100%	100%

Debt issued measured at amort_2

Debt issued measured at amortized cost (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Short-term debt	$ 40,522	$ 27,412	$ 29,676
Senior unsecured debt that contributes to total loss-absorbing capacity (TLAC)	97,927	47,172	42,073
Senior unsecured debt other than TLAC	43,508	18,680	17,892
of which: issued by UBS AG with original maturity greater than one year	14,918	15,472	17,892
of which: issued by Credit Suisse AG with original maturity greater than one year	26,346
Covered bonds	3,934
Subordinated debt	16,832	14,175	16,017
of which: high-trigger loss-absorbing additional tier 1 capital instruments	9,928	10,002	9,882
of which: low-trigger loss-absorbing additional tier 1 capital instruments	1,190	1,198	1,189
of which: low-trigger loss-absorbing tier 2 capital instruments	0	2,438	2,422
of which: non-Basel III-compliant tier 2 capital instruments	539	538	536
Debt issued through the Swiss central mortgage institutions	24,862	8,873	8,962
Other long-term debt	3,273
Long-term debt	190,336	88,900	84,945
Total debt issued measured at amortized cost	230,857	$ 116,312	$ 114,621
Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Short-term debt	4,932
Long-term debt	$ 52,406

Interest rate benchmark reform

Interest rate benchmark reform (Narrative) (Detail) - USD ($) $ in Billions	Jun. 30, 2023	Dec. 31, 2022
Disclosure Of Maximum Exposure To Interest Rate Benchmark Reform [Line Items]
US mortgages linked to USD LIBOR		$ 9
Corporate loans subject to interest rate benchmark reform	$ 2
Yen, pounds, sterling and US dollar denominated publicly issued benchmark bonds	6
Credit Suisse
Disclosure Of Maximum Exposure To Interest Rate Benchmark Reform [Line Items]
Yen, pounds, sterling and US dollar denominated publicly issued benchmark notes	$ 3

Provisions (Detail 1)

Provisions (Detail 1) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Other Provisions [Line Items]
Provisions for expected credit losses	$ 367	$ 214	$ 201
Provisions related to Credit Suisse loan commitments	4,400
Provisions related to litigation, regulatory and similar matters	7,170	3,723	3,042
Acquisition-related contingent liabilities (IFRS 3, Business Combinations)	2,992
Total provisions	14,929	3,937	3,243
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters	6,126	3,306	2,586
Other
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters	1,044	$ 416	$ 456
Credit Suisse
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters	3,487
Total provisions	11,071
Credit Suisse | Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters	2,837
Credit Suisse | Other
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters	$ 649

Provisions (Detail 2)

Provisions (Detail 2) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Disclosure Of Other Provisions [Line Items]
Other provisions	$ 7,170	$ 3,723	$ 3,042
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Other provisions	6,126	3,306	2,586
Litigation, regulatory and similar matters | Global Wealth Management
Disclosure Of Other Provisions [Line Items]
Other provisions	1,196	1,193	1,182
Litigation, regulatory and similar matters | Personal & Corporate Banking
Disclosure Of Other Provisions [Line Items]
Other provisions	162	161	159
Litigation, regulatory and similar matters | Asset Management
Disclosure Of Other Provisions [Line Items]
Other provisions	8	8	8
Litigation, regulatory and similar matters | Investment Bank
Disclosure Of Other Provisions [Line Items]
Other provisions	327	351	308
Litigation, regulatory and similar matters | Group Functions
Disclosure Of Other Provisions [Line Items]
Other provisions	1,595	1,594	928
Other
Disclosure Of Other Provisions [Line Items]
Other provisions	$ 1,044	$ 416	$ 456

Provisions - additional informa

Provisions - additional information (Detail) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Jun. 12, 2023
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	$ 3,723
Provisions recognized upon acquisition of Credit Suisse		$ 3,545
Increase in provisions recognized in the income statement	111
Release of provisions recognized in the income statement	(9)
Provisions used in conformity with designated purpose	(216)
Foreign currency translation and other movements	16
Balance at the end of period	7,170
Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of period	3,487
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	3,306
Provisions recognized upon acquisition of Credit Suisse		2,838
Increase in provisions recognized in the income statement	70
Release of provisions recognized in the income statement	(1)
Provisions used in conformity with designated purpose	(90)
Foreign currency translation and other movements	2
Balance at the end of period	6,126
Litigation, regulatory and similar matters | Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of period	2,837
Other
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	416
Provisions recognized upon acquisition of Credit Suisse		$ 707
Increase in provisions recognized in the income statement	41
Release of provisions recognized in the income statement	(8)
Provisions used in conformity with designated purpose	(126)
Foreign currency translation and other movements	14
Balance at the end of period	1,044
Other | Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of period	$ 649

Litigation, regulatory and si_3

Litigation, regulatory and similar matters (Detail) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Jun. 12, 2023
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	$ 3,723
Provisions recognized upon acquisition of Credit Suisse		$ 3,545
Increase in provisions recognized in the income statement	111
Release of provisions recognized in the income statement	(9)
Provisions used in conformity with designated purpose	(216)
Foreign currency translation / unwind of discount	16
Balance at the end of period	7,170
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	3,306
Provisions recognized upon acquisition of Credit Suisse		2,838
Increase in provisions recognized in the income statement	70
Release of provisions recognized in the income statement	(1)
Provisions used in conformity with designated purpose	(90)
Foreign currency translation / unwind of discount	2
Balance at the end of period	6,126
Litigation, regulatory and similar matters | Global Wealth Management
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	1,193
Increase in provisions recognized in the income statement	35
Release of provisions recognized in the income statement	(1)
Provisions used in conformity with designated purpose	(37)
Foreign currency translation / unwind of discount	7
Balance at the end of period	1,196
Litigation, regulatory and similar matters | Personal & Corporate Banking
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	161
Increase in provisions recognized in the income statement	0
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	0
Foreign currency translation / unwind of discount	1
Balance at the end of period	162
Litigation, regulatory and similar matters | Asset Management
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	8
Increase in provisions recognized in the income statement	1
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	(1)
Foreign currency translation / unwind of discount	0
Balance at the end of period	8
Litigation, regulatory and similar matters | Investment Bank
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	351
Increase in provisions recognized in the income statement	20
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	(45)
Foreign currency translation / unwind of discount	1
Balance at the end of period	327
Litigation, regulatory and similar matters | Group Functions
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of period	1,594
Increase in provisions recognized in the income statement	0
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	0
Foreign currency translation / unwind of discount	1
Balance at the end of period	1,595
Litigation, regulatory and similar matters | Credit Suisse
Disclosure Of Other Provisions [Line Items]
Provisions recognized upon acquisition of Credit Suisse		$ 2,838
Increase in provisions recognized in the income statement	14
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	(7)
Foreign currency translation / unwind of discount	(8)
Balance at the end of period	$ 2,837

Litigation, regulatory and si_4

Litigation, regulatory and similar matters (Narrative) (Detail) - 6 months ended Jun. 30, 2023 € in Thousands, $ in Thousands, £ in Millions, SFr in Millions	CHF (SFr) d	EUR (€) d	GBP (£) d	USD ($) d	USD ($)
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Acquisition-related contingent liabilities (IFRS 3, Business Combinations)					$ 2,992,000
Inquiries regarding cross-border wealth management businesses | Investigations in France
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Fine decision French Court | €		€ 3,700,000
Civil damages award announcement of the French Court | €		800,000
Provision recorded to cover pending legal case		1,100,000			$ 1,200,000
Inquiries regarding cross-border wealth management businesses | Investigations in France involving UBS AG
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Bail ("caution") ordered to be paid | €		1,100,000
Fine decision French Court of Appeal | €		3,750
Bail ("caution") ordered to be confiscated, verdict of the French Court of Appeal | €		1,000,000
Civil damages award, verdict of the French Court of Appeal | €		800,000
Civil damages award deducted from the bail, announcement of the French Court of Appeal | €		99,000
Claims related to sales of residential mortgage-backed securities and mortgages
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Settlement made				$ 1,435,000
Madoff | claims filed in Luxembourg by liquidators of two Luxembourg funds against UBS entities, non-UBS entities and certain individuals
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Minimum total claims against all defendants | €		2,100,000
Madoff | claims filed in the US by BMIS Trustee against UBS entities and various other parties
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				125,000
Minimum total claims against all defendants				2,000,000
Foreign exchange, LIBOR and benchmark rates, and other trading practices
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Fine provided in announcement of the European Commission | €		€ 172,000
Foreign exchange, LIBOR and benchmark rates, and other trading practices - Foreign exchange-related civil litigation | Claims under the Commodity Exchange Act
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Settlement made				$ 141,000
Mortgage-related matters | DOJ RMBS settlement | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Increase of customer relief per annum	5%	5%	5%	5%
Mortgage-related matters | Action brought by Asset Backed Securities Corporation Home Equity Loan Trust, Series 2006-HE7 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				$ 374,000
Mortgage-related matters | Action brought by Home Equity Asset Trust, Series 2006-8 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				436,000
Mortgage-related matters | Action brought by Home Equity Asset Trust 2007-1 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				420,000
Mortgage-related matters | Action brought by Home Equity Asset Trust 2007-2 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				495,000
Mortgage-related matters | Action brought by Home Equity Asset Trust, Series 2007-3 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				206,000
Mortgage-related matters | Action brought by Home Equity Mortgage Trust | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Settlement made				500,000
Mortgage-related matters | Action brought by Home Equity Mortgage Trust, Series 2006-1, 2006-3, 2006-4 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				730,000
Mortgage-related matters | Action brought by Home Equity Mortgage Trust, Series 2006-5 | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				500,000
Rates-related matters | Foreign exchange trading business | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Fine provided in announcement of the European Commission | €		€ 83,300
Rates-related matters | SSA bonds trading business | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Fine provided in announcement of the European Commission | €		€ 11,900
Customer account matters | Former relationship manager | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Damage award Geneva criminal court				130,000
Customer account matters | Singapore civil lawsuits | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Amounts claimed				750,000
Customer account matters | Bermuda civil lawsuits | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Civil damage award Supreme Court of Bermuda				$ 607,350
Time to pay awarded damages to escrow account | d	42	42	42	42
Bermuda statutory rate	3.50%	3.50%	3.50%	3.50%
Mozambique matter | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Settlement made				$ 175,500
Civil penalty paid				65,000
Disgorgement and pre-judgment interest paid				34,000
Sanctions paid				275,000
Restitution paid				22,600
Net penalty paid				175,600
Penalty paid				200,000
Debt forgiven				$ 200,000
Bulgarian former client matter | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Fine decision Swiss Federal Criminal Court | SFr	SFr 2
Client assets seized decision Swiss Federal Criminal Court | SFr	12
Compensatory claim ordered decision Swiss Federal Criminal Court | SFr	SFr 19
SCFF | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Business relationships to be reviewed	500	500	500	500
Highest-ranking managers to have their responsibilities defined	600	600	600	600
Archegos | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Civil penalty agreed to be paid				$ 269,000
Penalty agreed to be paid | £			£ 87

Supplemental guarantor consolid

Supplemental guarantor consolidated income statement (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Income Statements Captions [Line Items]
Interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	$ 7,101	$ 4,777	$ 2,380	$ 11,878	$ 4,525
Interest expense from financial instruments measured at amortized cost	(5,880)	(3,814)	(1,070)	(9,695)	(1,852)
Net interest income from financial instruments measured at fair value through profit or loss and other	493	425	355	918	763
Net interest income	1,713	1,388	1,665	3,101	3,436
Other net income from financial instruments measured at fair value through profit or loss	2,463	2,681	1,619	5,143	3,845
Fee and commission income	5,682	5,053	5,224	10,735	11,061
Fee and commission expense	(507)	(447)	(450)	(954)	(934)
Net fee and commission income	5,175	4,606	4,774	9,781	10,127
Other income	188	69	859	258	891
Total revenues	9,540	8,744	8,917	18,284	18,299
Credit loss expense / (release)	740	38	7	778	25
Personnel expenses	5,651	4,620	4,422	10,271	9,343
General and administrative expenses	1,968	2,065	1,370	4,033	2,578
Depreciation, amortization and impairment of non-financial assets	866	525	503	1,391	1,009
Operating expenses	8,486	7,210	6,295	15,696	12,929
Operating profit / (loss) before tax	29,239	1,495	2,615	30,735	5,344
Tax expense / (benefit)	361	459	497	820	1,082
Net profit / (loss)	28,878	1,037	2,118	29,915	4,262
Profit Loss Attributable To Noncontrolling Interests	3	8	10	11	18
Net profit / (loss) attributable to shareholders	$ 28,875	$ 1,029	$ 2,108	$ 29,904	$ 4,244

Supplemental guarantor consol_2

Supplemental guarantor consolidated statement of comprehensive income (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Statement Of Income Captions [Line Items]
Net profit / (loss)	$ 28,878	$ 1,037	$ 2,118	$ 29,915	$ 4,262
Total other comprehensive income that may be reclassified to the income statement, net of tax	(397)	709	(1,396)	312	(4,093)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(470)	87	357	(383)	839
Total other comprehensive income	(867)	796	(1,039)	(71)	(3,255)
Total comprehensive income	28,011	1,833	1,079	29,844	1,008
Comprehensive income attributable to shareholders
Condensed Statement Of Income Captions [Line Items]
Net profit / (loss)	28,875	1,029	2,108	29,904	4,244
Foreign currency translation, net of tax	368	106	(577)	474	(840)
Financial assets measured at fair value through other comprehensive income, net of tax	0	2	330	2	3
Cash flow hedges, net of tax	(775)	606	(1,171)	(169)	(3,355)
Cost of hedging, net of tax	11	(5)	21	6	98
Total other comprehensive income that may be reclassified to the income statement, net of tax	(397)	709	(1,396)	312	(4,093)
Defined benefit plans, net of tax	(53)	31	115	(21)	155
Own credit on financial liabilities designated at fair value, net of tax	(413)	51	271	(362)	693
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(466)	83	385	(383)	848
Total other comprehensive income	(862)	791	(1,011)	(71)	(3,245)
Total comprehensive income	28,013	1,820	1,097	29,833	999
Comprehensive income attributable to non-controlling interests
Condensed Statement Of Income Captions [Line Items]
Net profit / (loss)	3	8	10	11	18
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(5)	5	(28)	0	(10)
Total comprehensive income	$ (2)	$ 13	$ (17)	$ 11	$ 9

Supplemental guarantor consol_3

Supplemental guarantor consolidated balance sheet (Detail) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022
Assets
Cash and balances at central banks	$ 261,587	$ 144,183	$ 169,445
Amounts due from banks	24,392	14,901	14,792
Receivables from securities financing transactions measured at amortized cost	86,538	60,010	67,814
Cash collateral receivables on derivative instruments	54,314	32,726	35,032
Loans and advances to customers	651,770	390,130	387,220
Other financial assets measured at amortized cost	64,928	49,179	53,264
Total financial assets measured at amortized cost	1,143,528	691,130	727,568
Financial assets at fair value held for trading	151,098	117,757	107,866
of which: assets pledged as collateral that may be sold or repledged by counterparties	54,165	37,569	36,742
Derivative financial instruments	185,949	114,251	150,108
Brokerage receivables	21,537	21,025	17,576
Financial assets at fair value not held for trading	118,605	66,826	59,796
Total financial assets measured at fair value through profit or loss	477,188	319,859	335,347
Financial assets measured at fair value through other comprehensive income	2,217	2,241	2,239
Investments in subsidiaries and associates	2,691	1,114	1,101
Property, equipment and software	18,325	12,249	12,288
Goodwill and intangible assets	7,569	6,272	6,267
Deferred tax assets	10,342	9,310	9,389
Other non-financial assets	16,919	10,958	10,166
Total assets	1,678,780	1,053,134	1,104,364
Liabilities
Amounts due to banks	99,167	13,595	11,596
Payables from securities financing transactions measured at amortized cost	22,297	9,870	4,202
Cash collateral payables on derivative instruments	41,416	32,238	36,436
Customer deposits	712,546	505,581	525,051
Debt issued measured at amortized cost	230,857	116,312	114,621
Other financial liabilities measured at amortized cost	19,403	10,292	9,575
Total financial liabilities measured at amortized cost	1,125,687	687,889	701,481
Financial liabilities at fair value held for trading	40,364	34,374	29,515
Derivative financial instruments	193,147	116,113	154,906
Brokerage payables designated at fair value	43,852	43,911	45,085
Debt issued designated at fair value	125,050	77,233	73,638
Other financial liabilities designated at fair value	36,122	25,758	30,237
Total financial liabilities measured at fair value through profit or loss	438,534	297,390	333,381
Provisions	14,929	3,937	3,243
Other non-financial liabilities	11,994	6,811	9,040
Total liabilities	1,591,145	996,028	1,047,146
Equity
Equity attributable to shareholders	86,999	56,754	56,876
Equity attributable to non-controlling interests	636	352	342
Total equity	87,635	57,106	57,218	$ 57,184
Total liabilities and equity	$ 1,678,780	$ 1,053,134	$ 1,104,364

Supplemental guarantor consol_4

Supplemental guarantor consolidated statement of cash flows (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Condensed Cash Flow Statements Captions [Line Items]
Net cash flow from / (used in) operating activities	$ 17,665	$ 18,150
Cash flow from / (used in) investing activities
Purchase of subsidiaries, associates and intangible assets	1
Disposal of subsidiaries, associates and intangible assets	45	911
Purchase of property, equipment and software	(830)	(761)
Disposal of property, equipment and software	1	3
Purchase of financial assets measured at fair value through other comprehensive income	(2,444)	(2,821)
Disposal and redemption of financial assets measured at fair value through other comprehensive income	2,468	2,291
Net cash flow from / (used in) investing activities	104,869	(4,630)
Cash flow from / (used in) financing activities
Net short-term debt issued / (repaid)	5,203	(10,440)
Distributions paid on UBS shares	(1,679)	(1,668)
Issuance of debt designated at fair value and long-term debt measured at amortized cost	51,420	48,460
Repayment of debt designated at fair value and long-term debt measured at amortized cost	(49,777)	(36,309)
Net cash flows from other financing activities	(274)	(352)
Net cash flow from / (used in) financing activities	(25,056)	(3,830)
Total cash flow
Cash and cash equivalents at the beginning of the period	195,321	207,875
Net cash flow from / (used in) operating, investing and financing activities	97,478	9,690
Effects of exchange rate differences on cash and cash equivalents	2,960	(9,656)
Cash and cash equivalents at the end of the period	295,759	207,909
Net cash flow from / (used in) operating activities includes:
of which: cash and balances at central banks	261,504	190,244
Loans and advances to banks classified as cash equivalents	21,996	15,786
of which: money market paper	12,259	1,880
Restricted cash and cash equivalents	$ 5,892	$ 4,434