UBS (UBS) 20-F 28 Mar 24 2023 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2023 shares
Entity Information [Line Items]
Entity registrant name	UBS Group AG
Entity central index key	0001610520
Entity current reporting status	Yes
Entity voluntary filers	No
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity well known seasoned issuer	No
Entity common stock shares outstanding	3,462,087,722
Document type	20-F
Document period end date	Dec. 31, 2023
Amendment flag	false
Document fiscal year focus	2023
Document fiscal period focus	FY
Entity emerging growth company	false
Entity shell company	false
Entity interactive data current	Yes
Auditor name	Ernst & Young Ltd
Auditor firm ID	1460
Auditor location	Basel, Switzerland
Icfr auditor attestation flag	true
Document Accounting Standard	International Financial Reporting Standards
Entity Address Address Line 1	Bahnhofstrasse 45
Entity Address City Or Town	Zurich
Entity Address Postal Zip Code	CH-8001
Entity Address Country	CH
Entity File Number	1-36764
Entity Incorporation State Country Code	V8
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Fin Stmt Error Correction Flag	false
Business Contact [Member]
Entity Information [Line Items]
Contact Personnel Name	David Kelly
Entity Address Address Line 1	600 Washington Boulevard
Entity Address City Or Town	Stamford
Entity Address State Or Province	CT
Entity Address Postal Zip Code	06901
City Area Code	203
Local Phone Number	719 3000

Consolidated Income Statement

Consolidated Income Statement - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Line Items]
Interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	$ 31,743	$ 11,782	$ 8,533
Interest expense from financial instruments measured at amortized cost	(28,216)	(6,564)	(3,259)
Net interest income from financial instruments measured at fair value through profit or loss and other	3,770	1,403	1,431
Net interest income	7,297	6,621	6,705
Other net income from financial instruments measured at fair value through profit or loss	11,583	7,517	5,850
Fee and commission income	23,766	20,789	24,372
Fee and commission expense	(2,195)	(1,823)	(1,985)
Net fee and commission income	21,570	18,966	22,387
Other income	384	1,459	452
Total revenues	40,834	34,563	35,393
Credit loss expense / (release)	1,037	29	(148)
Personnel expenses	24,899	17,680	18,387
General and administrative expenses	10,156	5,189	5,553
Depreciation, amortization and impairment of non-financial assets	3,750	2,061	2,118
Operating expenses	38,806	24,930	26,058
Operating profit / (loss) before tax	28,739	9,604	9,484
Tax expense / (benefit)	873	1,942	1,998
Net profit / (loss)	27,866	7,661	7,486
Net profit / (loss) attributable to non-controlling interests	16	32	29
Net profit / (loss) attributable to shareholders	$ 27,849	$ 7,630	$ 7,457
Earnings per share
Basic	$ 8.83	$ 2.34	$ 2.14
Diluted	$ 8.45	$ 2.25	$ 2.06
Credit Suisse
Income Statement [Line Items]
Negative goodwill	$ 27,748
General and administrative expenses	202
Operating profit / (loss) before tax	$ 27,748

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	$ 27,866	$ 7,661	$ 7,486
Financial assets measured at fair value through other comprehensive income
Reclassification of financial assets to Other financial assets measured at amortized cost		(449)
Defined benefit plans
Gains / (losses) on defined benefit plans, before tax	110	(73)
Own credit on financial liabilities designated at fair value
Gains / (losses) from own credit on financial liabilities designated at fair value, before tax	(1,850)	867	46
Total comprehensive income
Total other comprehensive income	991	(4,494)	(2,367)
Total other comprehensive income that may be reclassified to the income statement, net of tax	2,715	(5,267)	(2,393)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(1,723)	772	26
Total comprehensive income	28,857	3,167	5,119
Comprehensive income attributable to shareholders
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	27,849	7,630	7,457
Foreign currency translation
Foreign currency translation movements related to net assets of foreign operations, before tax	3,762	(894)	(1,076)
Effective portion of changes in fair value of hedging instruments designated as net investment hedges, before tax	(2,320)	337	498
Foreign currency translation differences on foreign operations reclassified to the income statement	58	32	(2)
Effective portion of changes in fair value of hedging instruments designated as net investment hedges reclassified to the income statement	(28)	(4)	10
Income tax relating to foreign currency translations, including the effect of net investment hedges	(17)	4	35
Subtotal foreign currency translation, net of tax	1,456	(525)	(535)
Financial assets measured at fair value through other comprehensive income
Net unrealized gains / (losses), before tax	7	(440)	(203)
Net realized (gains) / losses reclassified to the income statement from equity	(3)	1	(9)
Reclassification of financial assets to Other financial assets measured at amortized cost		449
Income tax relating to net unrealized gains / (losses)	0	(3)	55
Subtotal financial assets measured at fair value through other comprehensive income, net of tax	4	6	(157)
Cash flow hedges of interest rate risk
Effective portion of changes in fair value of derivative instruments designated as cash flow hedges, before tax	(323)	(5,758)	(992)
Net (gains) / losses reclassified to the income statement from equity	1,905	(159)	(1,073)
Income tax relating to cash flow hedges	(308)	1,124	390
Subtotal cash flow hedges, net of tax	1,275	(4,793)	(1,675)
Cost of hedging
Cost of hedging, before tax	(19)	45	(32)
Income tax relating to cost of hedging	0	0	6
Subtotal cost of hedging, net of tax	(19)	45	(26)
Defined benefit plans
Gains / (losses) on defined benefit plans, before tax	110	(73)	2
Income tax relating to defined benefit plans	(70)	63	(7)
Subtotal defined benefit plans, net of tax	40	(10)	(5)
Own credit on financial liabilities designated at fair value
Gains / (losses) from own credit on financial liabilities designated at fair value, before tax	(1,850)	867	46
Income tax relating to own credit on financial liabilities designated at fair value	82	(71)	0
Subtotal own credit on financial liabilities designated at fair value, net of tax	(1,769)	796	46
Total comprehensive income
Total other comprehensive income	986	(4,481)	(2,351)
Total other comprehensive income that may be reclassified to the income statement, net of tax	2,715	(5,267)	(2,393)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	(1,729)	786	42
Total comprehensive income	28,836	3,149	5,106
Comprehensive income attributable to non-controlling interests
Statement Of Comprehensive Income [Line Items]
Net profit / (loss)	16	32	29
Total comprehensive income
Total other comprehensive income	5	(14)	(16)
Total other comprehensive income that will not be reclassified to the income statement, net of tax	5	(14)	(16)
Total comprehensive income	$ 22	$ 18	$ 13

Consolidated Statement of Com_2

Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement Of Comprehensive Income [Line Items]
Gains / (losses) on defined benefit plans, before tax	$ 110	$ (73)
Major Defined Benefit Plans [Member]
Statement Of Comprehensive Income [Line Items]
Gains / (losses) on defined benefit plans, before tax	111	(80)
Swiss Defined Benefit Plans [Member]
Statement Of Comprehensive Income [Line Items]
Gains / (losses) on defined benefit plans, before tax	124	(285)
UK Defined Benefit Plans [Member]
Statement Of Comprehensive Income [Line Items]
Gains / (losses) on defined benefit plans, before tax	$ (41)	$ 162

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and balances at central banks	$ 314,148	$ 169,445
Amounts due from banks	21,161	14,792
Receivables from securities financing transactions measured at amortized cost	99,039	67,814
Cash collateral receivables on derivative instruments	50,082	35,032
Loans and advances to customers	639,844	387,220
Other financial assets measured at amortized cost	65,498	53,264
Total financial assets measured at amortized cost	1,189,773	727,568
Financial assets at fair value held for trading	169,633	107,866
of which: assets pledged as collateral that may be sold or repledged by counterparties	51,263	36,742
Derivative financial instruments	176,084	150,108
Brokerage receivables	21,037	17,576
Financial assets at fair value not held for trading	104,018	59,796
Total financial assets measured at fair value through profit or loss	470,773	335,347
Financial assets measured at fair value through other comprehensive income	2,233	2,239
Investments in associates	2,373	1,101
Property, equipment and software	17,849	12,288
Goodwill and intangible assets	7,515	6,267
Deferred tax assets	10,682	9,389
Other non-financial assets	16,049	10,166
Total assets	1,717,246	1,104,364
Liabilities
Amounts due to banks	70,962	11,596
Payables from securities financing transactions measured at amortized cost	14,394	4,202
Cash collateral payables on derivative instruments	41,582	36,436
Customer deposits	792,029	525,051
Debt issued measured at amortized cost	237,817	114,621
Other financial liabilities measured at amortized cost	20,851	9,575
Total financial liabilities measured at amortized cost	1,177,633	701,481
Financial liabilities at fair value held for trading	34,159	29,515
Derivative financial instruments	192,181	154,906
Brokerage payables designated at fair value	42,522	45,085
Debt issued designated at fair value	128,289	73,638
Other financial liabilities designated at fair value	29,484	30,237
Total financial liabilities measured at fair value through profit or loss	426,635	333,381
Provisions and contingent liabilities	12,250	3,243
Other non-financial liabilities	14,089	9,040
Total liabilities	1,630,607	1,047,146
Equity
Share capital	346	304
Share premium	13,216	13,546
Treasury shares	(4,796)	(6,874)
Retained earnings	74,880	50,004
Other comprehensive income recognized directly in equity, net of tax	2,462	(103)
Equity attributable to shareholders	86,108	56,876
Equity attributable to non-controlling interests	531	342
Total equity	86,639	57,218
Total liabilities and equity	1,717,246	$ 1,104,364
of which: Credit Suisse
Assets
Other financial assets measured at amortized cost	11,378
Derivative financial instruments	47,400
Property, equipment and software	5,631
Other non-financial assets	7,099
Total assets	583,197
Liabilities
Customer deposits	236,049
Other financial liabilities measured at amortized cost	8,386
Derivative financial instruments	53,500
Debt issued designated at fair value	37,200
Other financial liabilities designated at fair value	5,114
Total financial liabilities measured at fair value through profit or loss	98,519
Provisions and contingent liabilities	9,681
Other non-financial liabilities	4,672
Total liabilities	$ 475,670

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) $ in Billions	Dec. 31, 2023 USD ($)
Balance Sheet [Line Items]
Debt instruments issued by the Credit Suisse Group and transferred to UBS Group AG as part of the acquisition.	$ 57.5
Fiduciary placements where UBS Switzerland AG acts as the fiduciary	3.4
Borrowings from UBS AG
Balance Sheet [Line Items]
Borrowings from UBS AG	$ 14.8

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Credit Suisse	Share capital	Share premium	Share premium Credit Suisse	Treasury shares	Treasury shares Credit Suisse	Retained earnings	Other comprehensive income recognized directly in equity, net of tax	of which: foreign currency translation	of which: financial assets at fair value through other comprehensive income	of which: cash flow hedges	Total equity attributable to shareholders	Total equity attributable to shareholders Credit Suisse	Non-controlling interests	Non-controlling interests Credit Suisse
Balance at Dec. 31, 2020	$ 59,765		$ 338	$ 16,753		$ (4,068)		$ 38,776	$ 7,647	$ 5,188	$ 151	$ 2,321	$ 59,445		$ 319
Acquisition of treasury shares	(3,521)					(3,521)							(3,521)
Delivery of treasury shares under share-based compensation plans	114			(675)		789							114
Other disposal of treasury shares	88			7		81							88
Cancellation of treasury shares related to the share repurchase program	0		(16)	(236)		2,044		(1,792)					0
Share-based compensation expensed in the income statement	643			643									643
Tax (expense) / benefit	(88)			(88)									(88)
Dividends	(1,305)			(651)				(651)					(1,301)		(4)
Equity classified as obligation to purchase own shares	(7)			(7)									(7)
Translation effects recognized directly in retained earnings	0							18	(18)		0	(18)	0
Share of changes in retained earnings of associates and joint ventures	1							1					1
New consolidations / (deconsolidations) and other increases / (decreases)	193			182									182		12
Total comprehensive income for the year	5,119							7,499	(2,393)	(535)	(157)	(1,675)	5,106		13
of which: net profit / (loss)	7,486							7,457					7,457		29
of which: OCI, net of tax	(2,367)							42	(2,393)	(535)	(157)	(1,675)	(2,351)		(16)
Balance at Dec. 31, 2021	61,002		322	15,928		(4,675)		43,851	5,236	4,653	(7)	628	60,662		340
Acquisition of treasury shares	(6,262)					(6,262)							(6,262)
Delivery of treasury shares under share-based compensation plans	115			(763)		879							115
Other disposal of treasury shares	163			(1)		164							163
Cancellation of treasury shares related to the share repurchase program	0		(18)	(1,502)		3,022		(1,502)					0
Share-based compensation expensed in the income statement	716			716									716
Tax (expense) / benefit	13			13									13
Dividends	(1,677)			(834)				(834)					(1,668)		(9)
Equity classified as obligation to purchase own shares	(15)			(15)									(15)
Translation effects recognized directly in retained earnings	0							69	(69)		0	(69)	0
Share of changes in retained earnings of associates and joint ventures	0							0					0
New consolidations / (deconsolidations) and other increases / (decreases)	(3)			4				3	(3)		(3)		4		(7)
Total comprehensive income for the year	3,167							8,415	(5,267)	(525)	6	(4,793)	3,149		18
of which: net profit / (loss)	7,661							7,630					7,630		32
of which: OCI, net of tax	(4,494)							786	(5,267)	(525)	6	(4,793)	(4,481)		(14)
Equity attributable to shareholders at the end of the period at Dec. 31, 2022	56,876
Balance at Dec. 31, 2022	57,218		304	13,546		(6,874)		50,004	(103)	4,128	(4)	(4,234)	56,876		342
Equity attributable to non-controlling interests	342
Impact of the settlement of pre-existing relationships from Credit Suisse Group acquisition		$ (61)					$ (61)							$ (61)
Acquisition of treasury shares	(3,070)					(3,070)							(3,070)
Delivery of treasury shares under share-based compensation plans	112			(858)		970							112
Other disposal of treasury shares	206			10		196							206
Cancellation of treasury shares related to the share repurchase program	0		(7)	(554)		1,115		(554)					0
Share-based compensation expensed in the income statement	1,097			1,097									1,097
Tax (expense) / benefit	19			19									19
Dividends	(1,683)			(839)				(839)					(1,679)		(4)
Equity classified as obligation to purchase own shares	11			11									11
Translation effects recognized directly in retained earnings	0							150	(150)		0	(150)	0
Share of changes in retained earnings of associates and joint ventures	(1)							(1)					(1)
Share capital currency change	0		49	(49)									0
New consolidations / (deconsolidations) and other increases / (decreases)	224			53									53		172	$ 285
Total comprehensive income for the year	28,857							26,121	2,715	1,456	4	1,275	28,836		22
of which: net profit / (loss)	27,866							27,849					27,849		16
of which: OCI, net of tax	991							(1,729)	2,715	1,456	4	1,275	986		5
Equity attributable to shareholders at the end of the period at Dec. 31, 2023	86,108
Balance at Dec. 31, 2023	86,639		$ 346	$ 13,216		$ (4,796)		$ 74,880	$ 2,462	$ 5,584	$ (1)	$ (3,109)	$ 86,108		$ 531
Purchase price consideration for Credit Suisse Group acquisition, before consideration of share-based compensation awards		3,547			$ 619		$ 2,928							3,547
Impact of share-based compensation awards from Credit Suisse Group acquisition		$ 162			$ 162									$ 162
Equity attributable to non-controlling interests	$ 531

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Parenthetical) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 SFr / shares
Ordinary cash dividends paid, ordinary shares per share | (per share)	$ 0.55	$ 0.50	SFr 0.37
Maximum percentage of dividends that may be paid from capital contribution reserves	50%
Own shares purchased and cancelled as part of 2018-2021 share repurchase program | shares	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%
New consolidations / (deconsolidations) and other increases / (decreases)	$ 224	$ (3)
Share premium
Increase (decrease) related to the issuance of high-trigger loss-absorbing additional tier 1 capital with an equity conversion feature	45
New consolidations / (deconsolidations) and other increases / (decreases)	53	4
Retained earnings
New consolidations / (deconsolidations) and other increases / (decreases)		3
Other comprehensive income recognized directly in equity, net of tax
New consolidations / (deconsolidations) and other increases / (decreases)		(3)
of which: financial assets at fair value through other comprehensive income
New consolidations / (deconsolidations) and other increases / (decreases)		(3)
Total equity attributable to shareholders
New consolidations / (deconsolidations) and other increases / (decreases)	53	4
Non-controlling interests
New consolidations / (deconsolidations) and other increases / (decreases)	$ 172	$ (7)

Share information and earnings

Share information and earnings per share - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Shares issued
Balance at the beginning of the year	3,524,635,722	3,702,422,995	3,859,055,395
Shares issued / (canceled)	(62,548,000)	(177,787,273)	(156,632,400)
Balance at the end of the year	3,462,087,722	3,524,635,722	3,702,422,995
Treasury shares
Balance at the beginning of the year	416,909,010	302,815,328	307,477,002
Acquisitions	138,791,939	359,378,093	214,270,175
Disposals	(64,270,031)	(67,497,138)	(62,299,449)
Cancellation of second trading line treasury shares	62,548,000	177,787,273	(156,632,400)
Balance at the end of the year	253,233,437	416,909,010	302,815,328
Shares outstanding	3,208,854,285	3,107,726,712	3,399,607,667
Basic and diluted earnings
Net profit / (loss) attributable to shareholders	$ 27,849	$ 7,630	$ 7,457
Less: (profit) / loss on own equity derivative contracts	0	0	0
Net profit / (loss) attributable to shareholders for diluted EPS	$ 27,849	$ 7,630	$ 7,457
Weighted average shares outstanding
Weighted average shares outstanding for basic EPS	3,152,579,449	3,260,938,561	3,482,963,682
Effect of dilutive potential shares resulting from notional shares, in-the-money options and warrants outstanding	143,416,753	136,531,654	144,277,693
Weighted average shares outstanding for diluted EPS	3,295,996,202	3,397,470,215	3,627,241,375
Earnings per share
Basic	$ 8.83	$ 2.34	$ 2.14
Diluted	$ 8.45	$ 2.25	$ 2.06
Potentially dilutive instruments
Employee share-based compensation awards	2,807,589	4,182,799	5,886,945
Other equity derivative contracts	2,831,228	1,690,247	6,553,051
Total	5,638,817	5,873,046	12,439,996
Credit Suisse
Treasury shares
Shares transferred as consideration for the acquisition	(175,649,481)

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flow from / (used in) operating activities
Net profit / (loss)	$ 27,866	$ 7,661	$ 7,486
Non-cash items included in net profit and other adjustments:
Depreciation, amortization and impairment of non-financial assets	3,750	2,061	2,118
Credit loss expense / (release)	1,037	29	(148)
Share of net (profit) / loss of associates and joint ventures and impairment related to associates	348	(32)	(105)
Deferred tax expense / (benefit)	(694)	494	434
Net loss / (gain) from investing activities	(102)	(1,470)	(230)
Net loss / (gain) from financing activities	8,534	(16,587)	100
Other net adjustments	(15,175)	5,844	3,802
Net change in operating assets and liabilities:
Amounts due from banks and amounts due to banks	3,291	(1,088)	2,148
Receivables from securities financing transactions measured at amortized cost	(3,503)	5,690	(1,565)
Payables from securities financing transactions measured at amortized cost	(2,014)	(1,247)	(751)
Cash collateral on derivative instruments	96	76	(3,312)
Loans and advances to customers	27,877	3,529	(27,460)
Customer deposits	52,786	(8,692)	29,825
Financial assets and liabilities at fair value held for trading and derivative financial instruments	3,674	8,006	(10,516)
Brokerage receivables and payables	(5,962)	6,019	8,115
Financial assets at fair value not held for trading and other financial assets and liabilities	9,938	5,678	19,609
Provisions and other non-financial assets and liabilities	3,920	257	3,010
Income taxes paid, net of refunds	(1,852)	(1,582)	(1,134)
Net cash flow from / (used in) operating activities	86,068	14,647	31,425
Cash flow from / (used in) investing activities
Purchase of subsidiaries, associates and intangible assets	(4)	(3)	(1)
Disposal of subsidiaries, associates and intangible assets	121	1,730	593
Purchase of property, equipment and software	(1,685)	(1,643)	(1,841)
Disposal of property, equipment and software	65	161	295
Net (purchase) / redemption of financial assets measured at fair value through other comprehensive income	30	(699)	(750)
Purchase of debt securities measured at amortized cost	(14,244)	(30,792)	(4,922)
Disposal and redemption of debt securities measured at amortized cost	10,435	18,799	4,507
Net cash flow from / (used in) investing activities	103,228	(12,447)	(2,119)
Cash flow from / (used in) financing activities
Repayment of Swiss National Bank funding	(56,516)
Net issuance (repayment) of short-term debt measured at amortized cost	3,169	(12,249)	(3,093)
Net movements in treasury shares and own equity derivative activity	(2,779)	(6,006)	(3,341)
Distributions paid on UBS shares	(1,679)	(1,668)	(1,301)
Issuance of debt designated at fair value and long-term debt measured at amortized cost	109,735	79,115	98,272
Repayment of debt designated at fair value and long-term debt measured at amortized cost	(109,471)	(67,670)	(79,909)
Net cash flows from other financing activities	(721)	(617)	(282)
Net cash flow from / (used in) financing activities	(58,262)	(9,094)	10,345
Total cash flow
Cash and cash equivalents at the beginning of the year	195,321	207,875	173,531
Net cash flow from / (used in) operating, investing and financing activities	131,035	(6,895)	39,651
Effects of exchange rate differences on cash and cash equivalents	13,955	(5,659)	(5,307)
Cash and cash equivalents at the end of the year	340,311	195,321	207,875
of which: cash and balances at central banks	314,065	169,363	192,706
of which: loans and advances to banks	19,227	13,450	13,942
of which: money market paper	7,018	12,508	1,227
Net cash flow from / (used in) operating activities includes:
Interest received in cash	44,581	15,718	11,163
Interest paid in cash	35,969	8,198	4,707
Dividends on equity investments, investment funds and associates received in cash	2,296	$ 1,907	$ 2,531
Credit Suisse
Non-cash items included in net profit and other adjustments:
Negative goodwill	(27,748)
Cash flow from / (used in) investing activities
Cash and cash equivalents acquired upon the acquisition of the Credit Suisse Group	$ 108,510

Consolidated Statement ot Cash

Consolidated Statement ot Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement Of Cash Flows [Line Items]
Restricted cash and cash equivalents	$ 4,944	$ 4,253	$ 3,408
Cash and cash equivalents at the end of the year	340,311	195,321	207,875
Money market paper in financial assets at fair value not held for trading	6,345	6,048	1,066
Money market paper in other financial assets measured at amortized cost	415	6,459	141
Money market paper in financial assets at fair value held for trading	259	2	20
Dividends on equity investments, investment funds and associates received in cash	2,296	$ 1,907	$ 2,531
Credit Suisse
Statement Of Cash Flows [Line Items]
Cash and cash equivalents at the end of the year	149,645
Non-core and Legacy
Statement Of Cash Flows [Line Items]
Cash receipts from the sale of loans and loan commitments within Non-core and Legacy	$ 4,289

Changes in liabilities arising

Changes in liabilities arising from financing activities - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	$ (53,083)	$ (804)
Non-cash changes	22,308	(24,335)
of which: foreign currency translation	11,195	(5,035)
of which: fair value changes	8,679	(12,625)
of which: hedge accounting and other effects	2,434	(6,675)
Balance	416,586	189,943	$ 215,082
Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	257,418
of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	132,953
Debt issued measured at amortized cost
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	5,062	(14,333)
Non-cash changes	7,644	(10,201)
of which: foreign currency translation	5,291	(3,526)
of which: hedge accounting and other effects	2,353	(6,675)
Balance	237,817	114,621	139,155
Debt issued measured at amortized cost | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	110,491
Debt issued measured at amortized cost | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	46,884
of which: short-term
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	3,169	(12,249)
Non-cash changes	381	(1,173)
of which: foreign currency translation	408	(1,173)
of which: hedge accounting and other effects	(27)
Balance	38,530	29,676	43,098
of which: short-term | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	5,303
of which: short-term | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	1,245
of which: long-term
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	1,893	(2,084)
Non-cash changes	7,263	(9,028)
of which: foreign currency translation	4,882	(2,353)
of which: hedge accounting and other effects	2,380	(6,675)
Balance	199,288	84,945	96,057
of which: long-term | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	105,188
of which: long-term | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	45,640
Debt issued designated at fair value
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	(520)	13,782
Non-cash changes	10,262	(13,944)
of which: foreign currency translation	1,780	(1,394)
of which: fair value changes	8,507	(12,550)
of which: hedge accounting and other effects	(25)
Balance	128,289	73,638	73,799
Debt issued designated at fair value | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	44,909
Debt issued designated at fair value | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	37,154
Swiss National Bank funding
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	(56,516)
Non-cash changes	4,224
of which: foreign currency translation	4,224
Balance	44,854
Swiss National Bank funding | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	97,146
Swiss National Bank funding | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	44,854
Over-the-counter debt instruments
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Cash flows	(1,109)	(253)
Non-cash changes	178	(190)
of which: foreign currency translation	(99)	(115)
of which: fair value changes	172	(75)
of which: hedge accounting and other effects	105
Balance	5,625	$ 1,684	$ 2,128
Over-the-counter debt instruments | Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Changes arising upon the acquisition of the Credit Suisse Group	4,872
Over-the-counter debt instruments | of which: Credit Suisse
Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items]
Balance	$ 4,060

Summary of material accounting

Summary of material accounting policies - Material accounting policies	12 Months Ended
	Dec. 31, 2023
Disclosure Of Material Accounting Policy Information [Line Items]
Material accounting policies	Note 1 a) Material accounting policies This Note describes (the Financial Statements were authorized for issue by the Basis of accounting The International Accounting Standards Board (the IASB), Disclosures marked as audited in the “Risk, capital, liquidity an integral part of the Financial Statements. These disclosures relate to requirements under IFRS 7, Financial Instruments: Disclosures , and IAS 1, Presentation of Financial Statements , and are not repeated in this section. The stated in Note 1b. Critical accounting estimates and judgments Preparation of these Financial Statements under affect reported amounts of assets, liabilities, time they are encompass historical updating them as necessary. Changes in those may differ significantly from UBS’s estimates, which could result in The Statements: – provisional amounts of identifiable assets acquired and liabilities assumed for the acquisition of the Credit Suisse Group (refer to item 1 in this Note and to Note 2); – expected credit loss measurement (refer to item 2g in this Note – fair value measurement (refer to item 2f in this Note – income taxes (refer to item 6 in this Note and to Note – provisions and contingent liabilities (refer to item 10 in this – post-employment benefit plans (refer to item 5 in – goodwill (refer to item 9 in this Note and to Note – consolidation of structured entities (refer to item 1 in this Note 1) Consolidation and business combinations Consolidation The Financial presented as a all entities that activities of the returns. Consideration is given to all the current ability to direct the relevant activities of an entity when Subsidiaries, when control ceases. Control, or the lack thereof, is reassessed if facts and circumstances to one or more elements required to establish that control › Refer to Note 29 for more information Critical accounting estimates and judgments Each individual entity is assessed for consolidation in line with the aforementioned consolidation principles. The assessment of control requires is unique for When carrying of the investee, as well as the substance of › Refer to Note 29 for more information Business combinations Business combinations are accounted Business Combinations . Under this method, any excess of the acquisition-date amounts of of the consideration the acquisition, with transaction costs expensed as assumed maximum of one year from the acquisition date (referred The amount of non-controlling acquiree’s identifiable net assets. Critical accounting estimates and judgments When complete information about all relevant facts and circumstances of the acquisition date is not practically available to UBS at the time when the initial acquisition accounting and subject to further measurement within one year from the acquisition date. In addition, the use of valuation techniques, in purchase consideration, thereby affecting the resulting goodwill › Refer to Note 2 for more information relating to 2) Financial instruments a. Recognition UBS generally recognizes financial instruments when However, (applying settlement date accounting to all standard purchases UBS may act in a benefit plans satisfied, Statements. Client cash balances associated with derivatives clearing if, balances. b. Classification, measurement and presentation Financial assets Where the contractual (SPPI) on within a business model that has an objective of holding financial assets to collect contractual cash flows, or at fair value through other contractual cash flows and selling financial assets. All other those managed on a fair value basis, except for derivatives designated in certain hedge accounting relationships item 2j in this Note for more information). Business model assessment and contractual cash flow characteristics UBS particular business objective at the time an asset is recognized. In assessing whether contractual cash flows are SPPI, the Group considers whether the contractual terms of the financial asset instrument. This assessment includes contractual (ESG) triggers. Financial liabilities Financial liabilities measured at amortized cost Debt issued contain common equity tier 1 that a viability non-financial conversion feature with the US dollars, these conversion features are classified as equity and Share premium amortized cost debt host. When the legal bail-in mechanism for write-down of issued debt instruments, If a debt were to be written down or converted into equity in a future period, it would be partially or fully derecognized, with statement. Financial liabilities measured at fair value through profit or UBS designates certain issued debt instruments as financial liabilities at fair value through profit or loss, on the basis that such financial instruments cash flows of the instrument and Financial instruments instruments. Measurement and presentation After initial recognition, UBS classifies, measures and presents its financial assets and liabilities in accordance with IFRS 9, as described in the table below. Classification, measurement and presentation Financial assets classification Significant items included Measurement and presentation Measured at amortized cost This classification includes: – cash and balances at central banks; – amounts due from banks; – receivables from securities financing transactions; – cash collateral receivables on derivative instruments; – residential and commercial mortgages; – corporate loans; – secured loans, including Lombard loans, and unsecured loans; – loans to financial advisors; – debt securities held as high-quality liquid (HQLA). Measured at amortized cost using the effective interest method less allowances for expected credit losses (refer to items 2d and 2g in this Note for more information). The following items are recognized in the income statement: – interest income, which is accounted for in accordance with item 2d in this Note; – ECL and reversals; and – foreign exchange (FX) translation gains and losses. When a financial asset at amortized cost is derecognized, the gain or loss is recognized in the income statement. For amounts arising from settlement of certain derivatives, see below in this table. Measured at FVOCI Debt instruments measured at FVOCI This classification primarily includes debt securities held as HQLA. Measured at fair value, reported in Other comprehensive income , net of applicable income taxes, until such investments are derecognized. Upon derecognition, any accumulated balances in Other comprehensive income statement and reported within Other income. The following items, which are determined on the basis as for financial assets measured at amortized recognized in the income statement: – interest income, which is accounted for in accordance with item 2d in this Note; – ECL and reversals; and – FX translation gains and losses. Classification, measurement and presentation Financial assets classification Significant items included Measurement and presentation Measured at FVTPL Held for trading Financial assets held for trading include: – all derivatives with a positive replacement value, those that are designated and effective hedging instruments; and – other financial assets acquired principally for the purpose of selling or repurchasing in the near term, or that are part of a portfolio of identified financial instruments that are managed together and for there is evidence of a recent actual pattern of short- term profit taking. Included in this category are debt instruments (including those in the form of money market paper, loans) and equity instruments. Measured at fair value, income statement. Derivative assets (including derivatives that and effective hedging instruments) are generally presented as Derivative financial instruments , except those exchange-traded derivatives (ETD) and over-the-counter (OTC)-cleared derivatives that are legally settled on basis or economically net settled on a daily basis, are presented within Cash collateral receivables on derivative instruments. Changes in fair value, initial transaction costs, and gains and losses arising on disposal or redemption recognized in Other net income from financial instruments measured at fair value through , except interest income on instruments other than derivatives (refer to item 2d in this Note), interest on derivatives designated as hedging instruments of interest rate risk and forward points on certain short- and long-duration FX contracts acting as economic hedges, which are reported in Net interest income. Changes in the fair value of derivatives that designated and effective hedging instruments are presented either in the income statement or Other comprehensive income , depending on the type of hedge relationship (refer to item 2j in this Note for more information). Mandatorily measured at FVTPL – Other Financial assets mandatorily measured at FVTPL that not held for trading include: – certain structured instruments, certain commercial loans, and receivables from securities financing transactions that are managed on a fair value basis; – loans managed on a fair value basis, hedged with credit derivatives; – certain debt securities held as HQLA and managed fair value basis; – certain investment fund holdings and assets hedge delivery obligations related to cash-settled employee compensation plans; – brokerage receivables, for which contractual cash flows do not meet the SPPI criterion because the aggregate balance is accounted for as a single unit of with interest being calculated on the individual components; – auction rate securities, for which contractual cash do not meet the SPPI criterion because interest may reset at rates that contain leverage; – equity instruments; – assets held under unit-linked investment contracts. Classification, measurement and presentation Financial liabilities classification Significant items included Measurement and presentation Measured at amortized cost This classification includes: – demand and time deposits; – retail savings / deposits; – sweep deposits; – payables – non-structured debt issued; – subordinated debt; – commercial paper and certificates of deposit; and – cash collateral payables on derivative instruments. Measured at amortized cost using the effective interest method. When a financial liability at amortized cost is derecognized, the gain or loss is recognized in the income statement. Interest income generated from client deposits derecognized pursuant to certain deposit sweep is presented within Net interest income from financial instruments measured at fair value through and other . Measured at FVTPL Held for trading Financial liabilities held for trading include: – all derivatives with a negative replacement value (including certain loan commitments), that are designated and effective hedging instruments; and – obligations to deliver financial instruments, debt and equity instruments, that UBS has third parties but does not own (short positions). Measurement and presentation of financial liabilities classified at FVTPL follow the same principles financial assets classified at FVTPL, except that of change in the fair value of a financial liability designated at FVTPL that is attributable to changes UBS’s own credit risk is presented in Other comprehensive income Retained earnings reclassified to the income statement. Derivative liabilities (including derivatives that designated and effective hedging instruments) generally presented as Derivative financial instruments , except those exchange-traded and OTC-cleared derivatives that are legally settled on a daily basis economically net settled on a daily basis, which presented within Cash collateral payables on derivative instruments. Designated at FVTPL Financial liabilities designated at FVTPL include: – issued hybrid debt instruments, linked, credit-linked and rates-linked bonds or notes; – issued debt instruments managed on a fair basis; – certain payables from securities financing transactions; – amounts due under unit-linked investment the cash flows of which are linked to financial measured at FVTPL and eliminate an accounting mismatch; – brokerage payables, which arise in conjunction with brokerage receivables and are measured at FVTPL to achieve measurement consistency. c. Loan commitments and financial guarantees Loan commitments commitments Financial guarantee contracts are incurred loss debt instrument. d. Interest income and expense Interest calculating the effective interest rate (the EIR) for financial instruments (other than UBS estimates future cash flows considering all contractual terms of the the EIR applied to the gross carrying amount of the when a EIR to allowance. Upfront fees, including fees on loan commitments not measured at fair value where a loan is expected to be issued, and direct costs are and recognized over the expected life of the instrument Fees related does not retain a effective Net recognized over the life of the commitment or when syndication › Refer to item 3 in this Note for more information Interest expense expense, except when interest rates are negative, › Refer to item 2b in this Note and Note 4 e. Derecognition Financial assets UBS derecognizes a transferred financial all the risks and rewards of the asset or a significant part of the risks and or pledge the asset. Where transferred evidenced financial asset is retained, by the extent to which it is exposed to changes in the value › Refer to Note 23 for more information Financial liabilities UBS discharged, canceled or expires. When an existing financial liability is exchanged for a new one from the same lender on substantially derecognized income statement. Certain OTC derivative counterparties on a daily basis represents a legal or economic settlement, › Refer to Note 22 for more information f. Fair value of financial instruments UBS accounts for a significant portion date that would be participants in the principal market, or in the most advantageous › Refer to Note 21 for more information Critical accounting estimates and judgments The use of valuation techniques, modeling assumptions and estimates of significant unobservable inputs participants would consider in estimating fair value, UBS‘s governance framework over fair value measurement is described in Note 21b, from changing significant unobservable inputs in › Refer to Note 21 for more information g. Allowances and provisions for expected credit losses ECL are receivables, undrawn portion of comm credit facilities, as UBS is exposed to credit risk because the borrower has the ability to draw down funds before UBS can take credit risk mitigation actions. Recognition of expected credit losses ECL are recognized on the following basis. – Stage 1 instruments: Maximum 12-month ECL ECL that would result occurring. – Stage 2 instruments: Lifetime ECL are to events over the no longer observed, the instrument will move back to stage – Stage 3 instruments: the occurrence Credit-impaired exposures they are expected to be fully recoverable through collateral – Changes in lifetime ECL since initial recognition are also PCI financial counterparty; Consistent with the business combination, acquired impaired are amount of the respective financial instruments below their acquisition All or part of a claim written off are generally credited to Credit loss expense / (release) . ECL are recognized in the income statement in Credit loss expense / (release) . A corresponding ECL allowance is reported as a decrease assets that Other comprehensive . For presented in Provisions. Default and credit impairment UBS applies counterparty classified as defaulted based on quantitative › Refer to the “Risk management and control” section of this Measurement of expected credit losses IFRS 9 ECL reflect The method (LGD) and on the materiality of approach is applied that are point-in-time(PIT)-based material portfolios, PDs independent. For the purpose (A-IRB) models that and developed that consider the complexity, structure and risk profile of relevant portfolios PDs and LGDs parameters. All models that oversight processes. Probability of default: PD represents the probability the probability of default determined for the next 12 months and a lifetime PD represents the remaining lifetime industry and information. Exposure at default: EAD represents an estimate of considering expected repayments, interest payments and accruals, are considered through and the characteristics of the respective portfolios. Loss given default: LGD represents an estimate expected proceedings commonly expressed Estimation of expected credit losses Number of scenarios and estimation of scenario weights Determination especially To represented by risks, and for for economic or changes in the nature and severity of the underlying scenario The determined weights constitute not that the chosen particular narratives with the related Macroeconomic and other factors The range and historical information availability of purposes, UBS projects the relevant economic factors for to cycle-neutral PD and LGD for longer-term Factors relevant taken into account, with specific focus on Switzerland and For UBS, the following forward-looking macroeconomic variables represent the most relevant factors for ECL calculation: – gross domestic product (GDP) – unemployment rates, given their significant effect on private – house price indices, given their significant effect on mortgage – interest rates, given their significant effect on counterparties’ – consumer price and economic stability; and – equity indices, given that they are an important factor Scenario generation, review process and governance A team of economists, with involvement from a broad range The scenarios, IFRS 9 Scenario and Group may not be capable allowance. The framework, ratifies the decisions taken by the ECL Management › Refer to Note 20 for more information ECL measurement period The period credit commitments and for which UBS has an obligation to extend credit. Additionally, some financial instruments include both an on-demand loan and a revocable undrawn commitment, where the client has estimate the defined contractual maturity date, are as one exposure. The exposure arising from with credit actions triggered when balances card limits, capped at 12 months for stage 1 balances, Customary master credit commitments. negative indicators. The risk Larger corporate facilities are not subject to RbM, but are reviewed has assessed these credit risk management practices and substantive period from the is exposed to reporting date. Significant increase in credit risk Financial instruments subject maximum 12 since initial recognition of the financial instrument, applying both Primarily, UBS forward-looking and scenario-weighted lifetime PD of an – at the reporting date; and – at inception of the instrument. If, based on UBS’s the instrument is transferred to stage 2 with lifetime ECL The threshold for those financial asset PIT applied are defined on a more granular level by interpolating SICR thresholds Internal rating at origination of the instrument Rating downgrades / SICR trigger 0–3 3 4–8 2 9–13 1 › Refer to the “Risk management and control” section of this Irrespective of increased for an instrument if contractual payments specifically the Swiss instruments are trans before a and Global reclassified to stage 3, a one-year period is applied before Additionally, economic conditions, counterparties may be moved to a watch list, which is used as a secondary qualitative indicator for an sharing the same credit risk characteristics to take account In general, the overall SICR determination process does not certain monitoring processes stage 3 position. In exceptional cases, an individual adjustment and a transfer into stage 2 may be made to take account of specific facts. Credit risk different requirements are instrument-specific, such that maturing loans in stage 2 will migrate to stage 1 upon renewal irrespective of the actual credit risk at that time. risk-based determine what risk-mitigating actions may be warranted. › Refer to the “Risk management and control” section of this Critical accounting estimates and judgments The calculation of ECL requires timing and the amount of ECL recognized. Determination of a significant increase in IFRS 9 Management Forum has been established to Scenarios, scenario weights and macroeconomic ECL reflect an unbiased looking Sounding Sessions, to determine whether any additional post-model ECL measurement period Lifetime ECL are generally callable master credit facilities, judgment is for credit card limits, capped at 12 months for stage 1 Modeling and post-model adjustments A number of affect ECL. The models are governed Management Forum and endorsed by the A sensitivity analysis covering key macroeconomic › Refer to Note 20 for more information h. Restructured and modified financial assets When payment default financial difficulties extension of maturity, › Refer to the “Risk management and control” section of this Modifications result in an alteration of future contractual cash flows and can occur within UBS’s normal risk tolerance or as part financial asset being derecognition, any difference between gross carrying amount of the given financial asset is recognized i. Offsetting UBS presents recognized simultaneously. transactions with various counterparties, exchanges and clearing In simultaneously, emphasis is all credit and liquidity exposure between the counterparties. This condition precludes offsetting substantial arrangements. Repurchase arrangements the settlement and payables in a single settlement process or cycle. › Refer to Note 22 for more information j. Hedge accounting The effectiveness discontinued. Voluntary discontinuation Fair value hedges of interest rate risk related to The amount hedging instrument. Fair value hedges of FX risk related to debt instruments The fair value change of the hedged item attributable item and foreign currency basis spread of cross-currency swaps designated as and accounted Other Equity . amounts are released to the income Discontinuation of fair value hedges Discontinuations for reasons which method. If the hedged item is derecognized, the unamortized fair value adjustment or deferred is recognized immediately in the income statement Cash flow hedges of forecast transactions Fair value gains or repricing Other Equity Interest from financial Interest expense affect profit transactions statement. Hedges of net investments in foreign operations Gains or losses Other comprehensive income Equity , while any gains (for example, the disposal of the foreign Equity the entity is reclassified to Other income . Interest Rate Benchmark Reform UBS continued with alternative to exist, no alternative risk-free Amendments to IFRS 16 (Interest Rate Benchmark Reform – Phase 2) , where applicable . › Refer to Note 26 for more information 3) Fee and commission income and expenses UBS earns broad clients’ assets, custody services deal-contingent merger and acquisitions UBS recognizes requires services to be provided Consideration nature of UBS’s business, contracts that to include a e.g., judgment in allocating the consideration received across PIT services where the amount of revenue is known when the performance obligation is met. Fixed-over-time fees are recognized on a straight-line to customer’s performance period. UBS to contingencies beyond UBS’s control until such uncertainties UBS’s component or term nature of such contracts, UBS significant contract assets or liabilities. UBS presents expenses primarily in line with their nature in the income statement, differentiating between expenses that are directly attributable which Total Fee , personnel, general and administrative expenses, or depreciation and amortization, Operating expenses . For derivatives execution and in against the associated income collected from the given client. › Refer to Note 5 for more information, including the 4) Share-based and other deferred compensation plans UBS recognizes service to affected by restructuring programs or mutually agreed termination provisions, recognition of such expense is accelerated to the who compensation expense is grant date. Share-based compensation plans Share-based compensation grant, taking transfer restrictions in effect beyond the vesting For equity-settled awards, incremental estimate of performance conditions. For equity-settled relate to a service or performance condition) do not result For cash-settled recognized equals the cash distributed. Other deferred compensation plans Compensation depending on expected to be paid under the equals the cash or the fair value of respective financial › Refer to Note 28 for more information 5) Post-employment benefit plans Defined benefit plans Defined benefit plans specify an amount of benefit factors, the present value of the of the Other comprehensive income . If the fair value of the plan’s assets is higher than the present value of the defined benefit obligation, the recognition of form of obligation or employer, and Critical accounting estimates and judgments The net defined benefit determined significantly alter the defined rate, expected movements in each significant assumption for › Refer to Note 27 for more information Defined contribution plans A benefits are paid. UBS has no legal or constructive assets to pay is recognized when contribution. Prepaid payments is available. 6) Income taxes UBS is subject to the income operations. The Group’s provision for income taxes is composed of current and deferred taxes. Current income taxes represent taxes to be paid or refunded for the current period or previous periods Deferred tax assets amounts and periods. DTAs may also arise measured using reporting period and that will be in effect when such differences DTAs are recognized differences can extent that there are sufficient taxable temporary differences or there is convincing other evidence that sufficient taxable profit will be available against which the unused tax losses Deferred and current tax to the be settled net or realized simultaneously. Current and deferred taxes are recognized as income tax benefit or expense and deferred taxes recognized in relation to: (i) amount of effects Equity ); FVOCI; (iv) changes in fair value benefit plans; or (vi) above are recognized in Other comprehensive income Equity . UBS considered probable by value methods, the uncertainty will be resolved. Critical accounting estimates and judgments Tax the performance of remaining tax loss carry-forward period, and its future profitability and business plan forecasts is inherently subjective Forecasts are reviewed to prove statement. In addition, judgment is required the resolution of any income tax-related appeals and litigation. › Refer to Note 9 for more information 7) Investments in associates Interests in entities where UBS not have Typically, voting rights. Investments in associates are initially recognized at cost, and the after the date of acquisition to recognize the Group’s share of the investee’s losses. The net of the investment in the associate exceeds its recoverable › Refer to Note 29 for more information 8) Property, equipment and software Property, development costs are capitalized benefits calculated on a straight-line basis over an asset’s estimated Property, alongside goodwill and intangible assets as assets property that has a that would be currently required by a market participant to replace the service capacity of the asset. If such assets are no longer used, they are tested individually for impairment. › Refer to Note 12 for more information 9) Goodwill and other separately identifiable intangible Goodwill represents liabilities of each reporting period, of whether there carrying amount exceeds the recoverable amount of a Negative goodwill, generally determined based on the difference between the (provisional) fair assets acquisition date. Separately from goodwill, UBS recognizes identifiable intangible assets acquired in a business combination that were not previously recognized on a straight generating-unit level. Critical accounting estimates and judgments UBS‘s methodology for available to shareholders (typically estimated Standards, in order to reflect facts and circumstances specific to a cash-generating growth rate. Earnings available to and management. The key changes to those assumptions. › Refer to Notes 3 and 13 for more information 10) Provisions and contingent liabilities Provisions are Provisions, Contingent Liabilities , when: probable that an outflow of resources will be required to of the obligation can be made. The majority of UBS’s provisions relate to litigation, regulatory and similar matters, restructuring, and employee benefits. Restructuring provisions scope of the for employee benefits relate mainly measurement principles Provisions with this presentational approach, fair value of combination is also presented in Provisions . IAS 37 provisions at the balance sheet date. When conditions required to recognize a provision are not met, a contingent liability is disclosed, unless the likelihood of an outflow events, Contingent measured at fair value. Subsequently, they are measured at the higher be recognized in accordance with the requirements for provisions Critical accounting estimates and judgments Recognition of provisions often involves significant judgment in assessing the existence of an obligation that results from past events and in probability, the timing and the amount of any outflows of resources. This is particularly the case for litigation, regulatory and similar matters, which, due to their nature, are subject to many uncertainties, The amount of Management regularly provisions have been satisfied and to determine the › Refer to item 1 in this Note, Note 2 11) Foreign currency translation Transactions spot exchange FVOCI, and closing exchange rate. Translation Other net income from fair value through profit or loss . Non-monetary items measured at historical cost are translated Upon consolidation, the closing exchange translated at Equity and reclassified longer controls Share between the historic reported Share Other and financial assets translation Retained earnings . › Refer to Note 33 for more information 12) UBS Group AG shares held (treasury shares) UBS Group AG in Equity Treasury Equity The difference between the proceeds reported as Share premium .

Summary of material accountin_2

Summary of material accounting policies - Changes in accounting policies, comparability and adjustments	12 Months Ended
	Dec. 31, 2023
Disclosure Of Material Changes In Accounting Policies [Line Items]
Changes in accounting policies, comparability and other adjustments	b) Changes in accounting policies, comparability and New or amended accounting standards IFRS 17 , Insurance Contracts Effective Insurance , requirements for contractual rights held. The adoption has had no material effect on the Group’s financial Amendments to IAS 12 , Income Taxes In May 2023, the IASB issued amendments Income Taxes , in relation to top-up taxes on income Anti-Base Erosion the Pillar Two model rules published by the Organisation Certain countries in which introduced a tax with effect from 1 January 2024 and group’s worldwide operations such legislation in 2024. The amendments to IAS be statements. An assessment was substantively reporting and, also, the corporate tax assessment indicated that the Group’s profits corporate Consequently, the Group is legislation.

Summary of material accountin_3

Summary of material accounting policies - IFRS Accounting Standards and Interpretations to be adopted and other changes	12 Months Ended
	Dec. 31, 2023
Description of Expected Impact of Initial Application of New Standards or Interpretations [Line Items]
IFRS Accounting Standards and Interpretations to be adopted in 2024 and later and other changes	c) IFRS Accounting Standards and Interpretations Other amendments to IFRS Accounting Standards The IASB has issued later.

Accounting for the acquisition

Accounting for the acquisition of the Credit Suisse Group	12 Months Ended
	Dec. 31, 2023
Disclosure Of Business Combinations [Line items]
Accounting for the acquisition of Credit Suisse Group	Note 2 Accounting for the acquisition of the Credit The transaction On 12 June and liabilities indirect subsidiaries of Credit Suisse Group AG (the Transaction). The acquisition followed a request from the Swiss Federal Department of Finance, the Swiss Financial Market Supervisory confidence in the stability of and stakeholders of UBS and Credit Suisse. The firms subsequently entered into a Upon the right to depositary 1/22.48 Group AG shareholders received 5.1 % of the outstanding price of USD 3.7 bn. Accounting principles: conversion from US GAAP and IFRS 3 purchase price allocation The acquisition of the Credit Suisse Group constitutes a business combination under IFRS 3, Business Combinations , and is required to be accounted for by applying the acquisition method As part of the from US impact arose Total assets 70 bn, impact on Equity . Other conversion methods used to calculate expected credit losses. › Refer to Note 20 for more information about the expected following the acquisition date Remeasurement of assets, liabilities and off-balance the IFRS 3 purchase price allocation Financial instruments The financial date, 14.9 bn, including USD 4.8 bn recognized value 10.1 bn commitments and guarantees. Fair date were reflect additional liquidity adjustments. In including value adjustments applied to amortized-cost financial instruments profit or Interest income measured at amortized cost and fair value through other , Fee and commission income Other net instruments continue to be held. › Refer to Note 21 for more information Adjustments have 0.9 bn and additional litigation provisions and contingent liabilities 5.4 bn recognized as detailed below. Furthermore, Credit Suisse Group goodwill has been derecognized, the fair value of its internally generated software has been marked down in consideration of how market participants would value acquired software, revalued. With the acquisition as the impact statements was not material. Intangible assets Included in Intangible assets 0.9 bn for core were recognized as part of the acquisition of financial statements of the Credit Suisse the after-tax cost cost of the mix present value of the after-tax cost savings expected value of income-based customer relationships over with interest income, as well as related costs to Also Intangible 0.4 bn, perform specified mortgage-servicing activities on MSRs were valued using a discounted cash flow model. Additional provisions and contingent liabilities Included in Provisions and contingent liabilities 5.4 bn for additional litigation provisions and contingent which includes USD 1.6 bn for litigation provisions, in addition to 1.3 bn provision previously recorded by the considering 3.8 bn regulatory associated with litigation the amount and timing 3.8 bn contingent liabilities reflects an 0.8 bn from the previously 3.0 bn, with 45 m increase publication of the UBS Group fourth quarter In addition, UBS 4.5 bn for fair recognized 2.3 bn Provisions and contingent liabilities 2.2 bn is included as fair value loan commitments within Derivative financial instruments commitments. › Refer to “IFRS 3 measurement period adjustments Group” in this Note › Refer to Note 18 for more information Determination of the purchase price consideration Measure Credit Suisse Group ordinary shares outstanding, 12 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 of treasury shares USD 3.7 bn, based on the UBS Credit Suisse employees attributable to the service period completed on the date of acquisition. IFRS 3 measurement period adjustments for the acquisition The conventional time frame for and circumstances accounting was fourth quarter 2023 that management after the business adjustments within one year from the acquisition date. In the second half of became reflecting additional decisions to sell acquired loans and measurement period loan commitments following Management, Additionally, several presentational changes resulted in a reclassification of financial assets reported at fair value not held for trading approaches followed by the UBS Group. Previously reported financial information has been revised Effect of measurement period and presentation adjustments on The table acquisition measurement period and detailed below. USD m Purchase price consideration, after consideration of share-based compensation awards 3,710 Credit Suisse Group net identifiable assets on the acquisition Assets As previously reported in the second quarter 2023 report Measurement period adjustments Reference number Revised Cash and balances at central banks 93,012 93,012 Amounts due from banks 13,590 13,590 Receivables from securities financing transactions measured at amortized 26,194 26,194 Cash collateral receivables on derivative instruments 20,878 20,878 Loans and advances to customers 261,839 (14,620) 2, 4 247,219 Other financial assets measured at amortized cost 13,440 (12) 2 13,428 Total financial assets measured at amortized cost 1 428,954 (14,632) 414,322 Financial assets at fair value held for trading 35,046 21,191 2, 3 56,237 Derivative financial instruments 62,162 62,162 Brokerage receivables 366 366 Financial assets at fair value not held for trading 61,305 (7,106) 3 54,199 Total financial assets measured at fair value through profit or loss 158,879 14,085 172,964 Financial assets measured at fair value through other comprehensive income 1 0 0 Investments in associates 1,657 (88) 1,569 Property, equipment and software 6,055 6,055 Intangible assets 1,287 1,287 Deferred tax assets 942 56 998 Other non-financial assets 6,892 6,892 Total assets 604,667 (579) 604,088 Liabilities Amounts due to banks 107,617 107,617 Payables from securities financing transactions measured at amortized cost 11,911 11,911 Cash collateral payables on derivative instruments 10,939 10,939 Customer deposits 183,119 183,119 Debt issued measured at amortized cost 110,491 110,491 Other financial liabilities measured at amortized cost 7,992 7,992 Total financial liabilities measured at amortized cost 432,070 432,070 Financial liabilities at fair value held for trading 5,711 5,711 Derivative financial instruments 66,091 1,691 2 67,782 Brokerage payables designated at fair value 316 316 Debt issued designated at fair value 44,909 44,909 Other financial liabilities designated at fair value 7,574 7,574 Total financial liabilities measured at fair value through profit or loss 124,601 1,691 126,292 Provisions and contingent liabilities 11,052 (1,107) 2, 4 9,945 Other non-financial liabilities 3,888 13 3,901 Total liabilities 571,611 598 572,209 Non-controlling interests (285) (285) Fair value of net assets acquired 32,771 (1,177) 31,594 Settlement of pre-existing relationships 135 135 Provisional negative goodwill resulting from the acquisition 28,925 (1,177) 27,748 1 Refer to Note 10 for information about credit quality of financial assets, including purchased credit-impaired The table below provides details of the measurement Reference Measurement period adjustment 2 The application of measurement period adjustments following classification and measurement changes balance sheet: – USD 14.3 bn of loans and advances to customers 12 m of other financial assets measured at amortized Legacy previously reported in the UBS Group second quarter reclassified in the UBS Group third and fourth quarter 2023 – USD 27.5 bn notional value of loan commitments and 2.0 bn fair value, previously not subject to ongoing remeasurement at fair value, were reclassified to derivative loan Group third quarter 2023 report; and – USD 0.3 bn of derivative liabilities decreased, with 0.3 bn in financial assets measured at fair value held for trading in the acquisition date balance As a consequence of the classification and 0.1 bn of stage 1 and 2 expected credit losses reversed from the income statement and, accordingly, a USD 0.1 bn increase in net profit recognized in the second quarter of Additionally, interest income of USD 0.2 bn for the quarter ended 30 September 0.1 bn for the quarter ended 30 June 2023) was reclassified from Interest income from financial instruments comprehensive income Net interest income from financial instruments , with no impact on Net interest income . 3 A reclassification of USD 7.1 bn of financial assets reported at fair value not trading was performed in the fourth quarter of 4 After the publication of the UBS Group fourth quarter acquisition date fair values, several measurement changes: – a USD 0.3 bn decrease in the fair value for loans and advances following individual counterparty credit assessments; – a USD 0.9 bn increase in provisions and contingent liabilities related 2023 following further comprehensive reviews, including probable outcomes as of the acquisition date. USD 0.8 bn of the USD 0.9 bn increase relates to contingent liabilities, with the remaining USD 45 m from litigation provisions. These changes have resulted in a net USD 1.2 bn reduction to negative goodwill resulting from the amount originally published in the UBS Group second Determination of negative goodwill The acquisition of the 27.7 bn. This negative assumed, requirements in IFRS 16 and IAS 19, respectively, The USD 27.7 bn provisional negative 1.2 bn lower than the 28.9 bn provisional negative fourth quarter 2023 report as detailed in the table above. The negative goodwill Negative goodwill . The pre-tax gain arising any tax expense. Acquisition-related costs to effect the acquisition UBS incurred consulting 0.2 bn General administrative expenses Derecognition of loans and loan commitments During the second half of 2023, the Group recognized gains on the early termination and natural roll-off, accelerated by actions 0.1 bn USD 0.6 bn, respectively. Pro forma financial information From the 7.6 bn of net and an 3.5 bn to revenues and net place on 1 January 2023 are estimated as USD 46.1 bn and USD 2.1 bn, respectively. This pro forma Credit Suisse for the seven months since the acquisition), and the Credit Suisse of 2023, price allocation adjustments under IFRS 3, Business Combinations . The pro forma net the Credit 27.7 bn and acquisition date, including a gain from the write-down of additional tier 1 (AT1) capital notes of USD 16.4 bn, a goodwill impairment charge, mostly related to Wealth Management (Credit Suisse), 1.4 bn and a gain from the reversal of contingent 0.4 bn. representative of the normal course of business. The pro forma net revenues and net loss do not purport to represent what UBS’s actual results of been had The revenues, assets or liabilities. are or with the acquisition of the Credit Suisse Group. Segment reporting – integration of UBS’s and Credit Suisse’s Legacy Prior to the Management, reportable segments Investment Bank (Credit Suisse) and the Capital Release As the Group Personal & Corporate Banking, Asset Management, the Investment Non-core and Legacy includes positions and businesses not aligned with the Group’s strategy and policies. Those consist of liabilities of the and Asset Management (Credit Suisse) divisions, as well as of the former Corporate Center (Credit Suisse). Also included are the remaining and smaller amounts of assets of the acquisition of the Credit Suisse Group. Group Functions has been renamed Group Items and excludes UBS’s former Non-core certain of the assets and liabilities of the former Corporate The management reports to the Group Executive to IFRS 8, Operating Segments . Information for prior periods has been revised and presents As UBS sheet to the business divisions and into Group Items will › Refer to Note 3 for more information › Refer to the “Acquisition and integration Non-core and Legacy and other changes in the composition Pre-existing relationships As of 12 June 2023, UBS had the following pre-existing 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 Such balances are eliminated in the consolidated financial Retention awards 0.5 bn were the acquisition date to support the completion of the transaction and the early contingent 50 % 60 completion of 50 % in acquisition). recognized between the date of acquisition and the applicable 0.3 bn in 2023.

Segment reporting

Segment reporting	12 Months Ended
	Dec. 31, 2023
Disclosure Of Operating Segments [Line Items]
Disclosure Of Entitys Reportable Segments Explanatory	Note 3a UBS’s businesses are Banking, Asset by Group the five business divisions reflect the management structure – Global Wealth ranges from investment management and banking products and services. – Personal retirement, financing, channels. – Asset Management across intermediaries and wealth management clients. – The Investment Bank to services, facilitating clients raising debt derivatives trading across equities and fixed income, and – Non-core and consist of the assets and Suisse) and Swiss Bank (Credit Suisse) and Asset Management (Credit Suisse). reported in business divisions that have been assessed as not strategic – Our Group functions are by the support and control functions are allocated to as Group Items (which Governance, Office, Group Sustainability and Impact, Financial information about reports to the IFRS 8, Operating Segments . UBS’s determine reportable segments are carried out at internally agreed rates and are segments. several immaterial, as the majority of the Interest average attributed equity and currency composition. Assets and and invested with Group functions, and the net interest Segment internal operating segment associated transaction principles. Non-current assets than benefits. USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 Negative goodwill 2 UBS For the year ended 31 December 2023 Total revenues 21,190 8,436 2,639 8,661 741 (833) 40,834 Negative goodwill 27,748 27,748 Credit loss expense / (release) 147 501 0 190 193 6 1,037 Operating expenses 17,454 4,787 2,321 8,515 5,290 440 38,806 Operating profit / (loss) before tax 3,589 3,148 318 (44) (4,741) (1,279) 27,748 28,739 Tax expense / (benefit) 873 Net profit / (loss) 27,866 Additional information Total assets 469,240 470,526 21,804 399,348 172,862 183,465 1,717,246 Additions to non-current assets 2,584 3,279 709 530 3,062 550 10,714 of which Credit Suisse 3 1,795 3,020 626 3 3,062 550 9,056 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 UBS For the year ended 31 December 2022 Total revenues 18,967 4,302 2,961 4 8,717 237 (622) 34,563 Credit loss expense / (release) 0 39 0 (12) 2 1 29 Operating expenses 13,989 2,452 1,564 6,832 104 (12) 24,930 Operating profit / (loss) before tax 4,977 1,812 1,397 1,897 131 (611) 9,604 Tax expense / (benefit) 1,942 Net profit / (loss) 7,661 Additional information Total assets 388,530 235,226 17,348 391,320 13,367 58,574 1,104,364 Additions to non-current assets 42 13 1 34 0 1,970 2,060 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 UBS For the year ended 31 December 2021 Total revenues 19,419 4,263 2,617 9,454 60 (419) 35,393 Credit loss expense / (release) (29) (86) 1 (34) 0 0 (148) Operating expenses 14,665 2,618 1,586 6,858 138 191 26,058 Operating profit / (loss) before tax 4,783 1,731 1,030 2,630 (79) (611) 9,484 Tax expense / (benefit) 1,998 Net profit / (loss) 7,486 Additional information Total assets 5 395,235 225,370 25,639 346,431 25,153 99,354 1,117,182 Additions to non-current assets 56 16 1 30 0 1,989 2,091 1 As of or for the year ended 31 December 2023, Non-core and Legacy (previously reported within Group Functions) became a separate reportable segment and Group Functions has been renamed Group Items. Prior periods have been revised to reflect these changes. refer to Note 2. 4 Includes an USD 848 m gain in Asset resources from Group Items to the business divisions, with prospective effect. If the new methodology had been applied as of 31 December 2021, balance sheet assets allocated to business divisions would have been USD 26 bn higher, of which USD 14 bn would have related to the Investment Bank. Note 3b The operating geographic analysis of non-current assets is based on the The allocation basis as as revenues by geographical region in their annual reports › Refer to “UBS AG consolidated financial information” Report 2023 for more information on total revenues by geographical › Refer to the Credit Suisse AG consolidated financial credit-suisse.com/about- us/en/investor-relations.html , for more information on total revenues by geographical Total non-current assets 31.12.23 31.12.22 31.12.21 USD bn Share % USD bn Share % USD bn Share % Americas 1 9.4 34 8.9 46 9.0 44 Asia Pacific 1.7 6 1.5 8 1.5 7 Europe, Middle East and Africa (excluding Switzerland) 3.3 12 2.9 15 2.9 14 Switzerland 13.3 48 6.3 32 7.1 35 Global 0.0 0 0.0 0 0.0 0 Total 27.7 100 19.7 100 20.5 100 1 Predominantly related to the USA.

Net interest income and other n

Net interest income and other net income from fair value changes on financial instruments	12 Months Ended
	Dec. 31, 2023
Disclosure Of Net Interest Income And Other Net Income From Financial Instruments Measured At Fair Value Through Profit Or Loss [Line Items]
Disclosure Of Net Interest Income And Other Net Income From Financial Instruments Measured At Fair Value Through Profit Or Loss Explanatory	Note 4 profit or loss For the year ended USD m 31.12.23 31.12.22 31.12.21 Net interest income from financial instruments measured 3,770 1,403 1,431 Other net income from financial instruments measured 1 11,583 7,517 5,850 Total net income from financial instruments measured at fair value through profit or loss and 15,353 8,920 7,281 Net interest income Interest income from loans and deposits 2 28,569 9,612 6,488 Interest income from securities financing transactions measured 3 3,948 1,378 513 Interest income from other financial instruments measured 1,187 545 284 Interest income from debt instruments measured at fair 103 74 115 Interest resulting from derivative instruments designated as cash (2,064) 173 1,133 Total interest income from financial instruments measured at amortized cost and fair 31,743 11,782 8,533 Interest expense on loans and deposits 4 15,011 2,579 523 Interest expense on securities financing transactions measured 5 1,968 1,089 1,102 Interest expense on debt issued 11,072 2,803 1,533 Interest expense on lease liabilities 166 92 102 Total interest expense from financial instruments measured at amortized cost 28,216 6,564 3,259 Total net interest income from financial instruments measured at amortized cost and fair 3,527 5,218 5,274 Total net interest income from financial instruments measured at fair value through profit or loss 3,770 1,403 1,431 Total net interest income 7,297 6,621 6,705 1 Includes net losses 4,843 m (net gains of 17,037 m in 2022 and 6,582 m in 2021). This financial liabilities designated at fair value excludes fair value changes on hedges related to financial liabilities designated at fair value, and foreign currency translation effects arising from translating foreign currency transactions into the liabilities designated at fair 2,045 m (net gains of 4,112 m and net losses 2,068 m in 2022 and notes issued by UBS’s Asset the financial assets hedging the unit-linked investment contracts, which are balances at central collateral payables on derivative instruments. due to banks, cash collateral payables on derivative instruments. Total profit or 4,743 m to 18,880 m, mainly 4,302 m of Suisse revenues, 1,533 m of instruments Interest deposits.

Net fee and commission income

Net fee and commission income	12 Months Ended
	Dec. 31, 2023
Net fee And Commission Income [Line Items]
Disclosure Of Fee And Commission Income Expense Explanatory	Note 5 For the year ended USD m 31.12.23 31.12.22 31.12.21 Underwriting fees 568 579 1,463 M&A and corporate finance fees 840 804 1,102 Brokerage fees 3,542 3,484 4,382 Investment fund fees 4,837 4,942 5,790 Portfolio management and related services 10,673 9,059 9,762 Other 3,306 1,920 1,874 Total fee and commission income 1 23,766 20,789 24,372 of which: recurring 15,911 14,229 15,410 of which: transaction-based 7,761 6,492 8,692 of which: performance-based 94 68 269 Fee and commission expense 2,195 1,823 1,985 Net fee and commission income 21,570 18,966 22,387 1 For the 13,753 m for Global 2,733 m for Personal 3,325 m for Asset Management, USD 3,955 m for the Investment 128 m for Group Items 128 m for Non-core and 12,990 m for Global Wealth USD 1,654 m for Personal 2,840 m for Asset 3,296 m for the 10 m for Group 0 m for Non-core 31 December 2021: USD 14,545 m for Global Wealth Management, USD 1,644 m for Personal & Corporate 3,337 m for Asset Management, USD 4,814 m for the Investment Bank, USD 33 m for Group Items and USD 0 m for Non-core and Legacy). For the year ended 31 December 2023, Non-core and Legacy (previously reported within Group Functions) has been renamed Group Items. Prior periods have been revised to reflect these changes. Total net fee and commission income increased by USD 2,604 m to USD 21,570 m, largely attributable to the consolidation of USD 3,010 m of Credit Suisse revenues. Included Other 747 m measured at amortized cost, including of the instrument is terminated or disposed of before its contractual

Other income

Other income	12 Months Ended
	Dec. 31, 2023
Other Income [Line Items]
Disclosure Of Other Operating Income Explanatory	Note 6 For the year ended USD m 31.12.23 31.12.22 31.12.21 Associates, joint ventures and subsidiaries Net gains / (losses) from acquisitions and disposals of 1 24 148 (11) Net gains / (losses) from disposals of investments in associates 4 844 2 41 Share of net profits of associates and joint ventures (348) 3 32 105 Total (319) 1,024 135 Net gains / (losses) from disposals of financial assets measured 3 (1) 9 Income from properties 4 39 20 23 Net gains / (losses) from properties held for sale 12 24 100 5 Other 6 648 7 391 8 185 9 Total other income 384 1,459 452 1 Includes foreign exchange gains / (losses) reclassified from other comprehensive income disposals of subsidiaries and 848 m gain related to the 508 m share of proportionate losses reflected in the SIX Group profit and loss, of which USD 317 m reported in Personal and Corporate Banking and USD 190 m reported in Global Wealth Management. 5 Mainly relates to 160 m related to the 98 m in 2022 and 60 m in 2021). 174 m of mortgage servicing rights fee income 133 m gain on the sale of UBS’s business in Spain of USD 111 m (with the remaining amount disclosed 111 m related to a legacy litigation legacy bankruptcy claim, and gains of USD 98 m related to the repurchase of UBS’s own debt instruments (compared with losses of USD 60 m in 2021). 100 m from the sale of UBS’s domestic wealth management business in Austria.

Personnel expenses

Personnel expenses	12 Months Ended
	Dec. 31, 2023
Personnel Expenses [Line Items]
Disclosure Of Employee Benefits Explanatory	Note 7 For the year ended USD m 31.12.23 31.12.22 31.12.21 Salaries 1 10,997 7,045 7,339 Variable compensation 2 9,845 7,954 8,280 of which: performance awards 3,986 3,205 3,190 of which: financial advisors 3 4,549 4,508 4,860 of which: other 1,310 241 229 Contractors 334 323 381 Social security 1,473 944 978 Post-employment benefit plans 4 1,361 794 833 of which: defined benefit plans 847 437 470 of which: defined contribution plans 514 357 363 Other personnel expenses 890 621 576 Total personnel expenses 24,899 17,680 18,387 1 Includes role-based approach. It also information. Includes curtailment gains 29 m for the year ended 20 m; for the year 80 m), which represent a reduction in the defined benefit obligation related to the Swiss pension plans resulting from a decrease in headcount following restructuring activities. Personnel expenses increased 7,219 m to 24,899 m, mainly of 6,330 m, 2,192 m awards granted Credit Suisse processes to the UBS variable

General and administrative expe

General and administrative expenses	12 Months Ended
	Dec. 31, 2023
General And Administrative Expenses [Line Items]
Disclosure Of General And Administrative Expense Explanatory	Note 8 For the year ended USD m 31.12.23 31.12.22 31.12.21 Outsourcing costs 1,492 896 893 Technology costs 1,851 1,146 1,055 Consulting, legal and audit fees 1,619 592 540 Real estate and logistics costs 1,342 605 634 Market data services 684 419 417 Marketing and communication 408 265 242 Travel and entertainment 278 172 72 Litigation, regulatory and similar matters 1 809 348 911 Other 1,673 2 746 788 Total general and administrative expenses 10,156 5,189 5,553 1 Reflects the net increase, including USD 296 m attributable to setting up a provision related to onerous contracts. General 4,967 m 10,156 m, Credit 3,000 m, 1,436 m, higher consulting and 202 m, also mainly fees.

Income taxes

Income taxes	12 Months Ended
	Dec. 31, 2023
Income Taxes [Line Items]
Disclosure Of Income Tax Explanatory	Note 9 For the year ended USD m 31.12.23 31.12.22 31.12.21 Tax expense / (benefit) Swiss Current 883 730 680 Deferred 152 (15) 34 Total Swiss 1,035 715 714 Non-Swiss Current 684 718 884 Deferred (846) 509 400 Total non-Swiss (162) 1,227 1,284 Total income tax expense / (benefit) recognized in the income statement 873 1,942 1,998 Income tax recognized in the income statement The Swiss current tax expenses related to taxable profits The Swiss deferred tax expenses primarily related to the amortization of deferred tax assets (DTAs), as deductions related to temporary differences were made against profits. The non-Swiss 100 m in tax (CAMT) and USD 584 m in respect of other taxable profits of non-Swiss subsidiaries The non-Swiss net deferred tax 754 m in respect of which 480 m Group’s business planning process and USD 274 m in respect of an increase in DTAs that resulted from an increase in the expected value of future tax deductions for deferred compensation awards due to an increase in the Group’s share price during the year. 100 m in respect of DTAs USD 8 m. The low effective 3.0 % primarily reflected the income statement 754 m in respect of the remeasurement incurred by certain entities, benefits because they cannot If further than the Group’s structural rate of 23 %, but the Group’s effective tax rate rate in subsequent years, as such losses decrease. For the year ended USD m 31.12.23 31.12.22 31.12.21 Operating profit / (loss) before tax 28,739 9,604 9,484 of which: Swiss 32,300 4,425 3,334 of which: non-Swiss (3,561) 5,178 6,150 Income taxes at Swiss tax rate of 18.5 % for 2023, 18 % for 2022 and 18.5 % for 2021 5,317 1,729 1,755 Increase / (decrease) resulting from: Non-Swiss tax rates differing from Swiss tax rate (224) 284 234 Tax effects of losses not recognized 1,584 74 124 Previously unrecognized tax losses now utilized (401) (217) (179) Non-taxable and lower-taxed income 1 (5,730) (335) (278) Non-deductible expenses and additional taxable income 1,651 429 510 Adjustments related to prior years, current tax (87) (41) (40) Adjustments related to prior years, deferred tax (1) 13 (10) Change in deferred tax recognition (1,288) (217) (342) Adjustments to deferred tax balances arising from changes 26 0 (5) Other items 25 222 231 Income tax expense / (benefit) 873 1,942 1,998 1 The reconciling item for non-taxable and lower-taxed not result in any tax expense. The components of statements and the amounts calculated at the Swiss tax rate, Component Description Non-Swiss tax rates differing from the Swiss tax rate To the extent that Group profits or losses arise outside Switzerland, the applicable local tax tax rate. This item reflects, for such profits, an adjustment the tax expense that would arise at the applicable the tax benefit that would arise at the Swiss tax Tax effects of losses not recognized This item relates to tax losses of entities arising in the in relation to those losses. Therefore, the tax benefit calculated above is reversed. Previously unrecognized tax losses now utilized This item relates to taxable profits of the year that are offset by tax losses previously recorded. Consequently, no current tax or deferred tax expense arises in relation to those taxable the tax expense calculated by applying the local Non-taxable and lower- taxed income This item relates to tax deductions for the year in profits that are either not taxable or are taxable at a lower rate made for tax purposes, which are not reflected in the Non-deductible expenses and additional taxable income This item relates to additional taxable income for is recognized for tax purposes by an entity but is well as expenses for the year that are non-deductible locations). Adjustments related to prior years, This item relates to adjustments to current tax expense for tax authorities in an amount that differs from the amount Adjustments related to prior years, tax This item relates to adjustments to deferred tax positions recognized and the amount of the tax loss agreed with recognized as DTAs in the accounts). Change in deferred tax recognition This item relates to changes in DTAs, including changes in DTAs previously recognized resulting from reassessments of expected future taxable profits. It also includes changes recognized. Adjustments to deferred tax balances arising from changes in tax rates This item relates to remeasurements of DTAs and liabilities recognized due to changes of changing the future tax saving that is expected from tax of DTAs recognized or, alternatively, differences and therefore the deferred tax liability. Other items Other items include other differences between profits or losses benefit, including movements in provisions for uncertain Income tax recognized directly in equity A net tax expense of USD 314 m was recognized in Other comprehensive income 1,116 m) and a net tax benefit of USD 19 m was recognized in Share premium (2022: net benefit of USD 13 m). Deferred tax assets and liabilities The Group has gross temporary differences, as well as deferred tax liabilities in respect of taxable temporary differences, as shown in below. management related tax loss carry-forwards and deductible The recognition of DTAs is opportunities are available that would Deferred tax joint arrangements, except temporary difference and it is probable that such will not reverse in the foreseeable 2023, this exception was not considered to apply to any USD m 31.12.23 31.12.22 Deferred tax assets 1 Gross Valuation allowance Recognized Gross Valuation allowance Recognized Tax loss carry-forwards 19,070 (16,078) 2,992 12,708 (8,720) 3,988 Unused tax credits 95 0 95 0 0 0 Temporary differences 11,159 (3,564) 7,595 5,814 (414) 5,400 of which: related to real estate costs capitalized for US purposes 2,703 0 2,703 2,485 0 2,485 of which: related to compensation and benefits 1,795 (471) 1,324 1,194 (175) 1,018 of which: related to cash flow hedges 765 (139) 626 947 0 947 of which: other 5,896 (2,954) 2,942 1,188 (238) 950 Total deferred tax assets 30,324 (19,642) 10,682 2 18,522 (9,134) 9,389 2 of which: related to the US 9,023 8,294 of which: related to other locations 1,659 1,095 Deferred tax liabilities Total deferred tax liabilities 325 236 1 After offset of DTLs, as applicable. 426 m (31 December 2022: USD 471 m) in respect of entities that incurred losses in either year. In general, US federal tax losses incurred prior losses incurred after that date of the either 25% or 50% carry-forwards that state and local tax purposes. Unrecognized tax loss carry-forwards USD m 31.12.23 31.12.22 Within 1 year 342 231 From 2 to 5 years 10,839 2,184 From 6 to 10 years 7,114 11,106 From 11 to 20 years 1,818 1,610 No expiry 44,222 16,960 Total 64,335 32,091 of which: related to the US 1 12,354 13,350 of which: related to the UK 37,773 14,332 of which: related to other locations 14,208 4,409 1 Related to UBS AG’s US branch.

Financial assets at amortized c

Financial assets at amortized cost and other positions in scope of expected credit loss measurement	12 Months Ended
	Dec. 31, 2023
Disclosure Of Provision Matrix [Line Items]
Disclosure Of Provision Matrix Explanatory	Note 10 The tables credit loss shared table below. › Refer to Note 20 for more information about expected Segment Segment description Description of credit risk sensitivity Business division Private clients with mortgages Lending to private clients secured by owner-occupied real estate and personal account overdrafts of those clients Sensitive to the Swiss GDP, interest rate environment, unemployment levels, real estate collateral values and other regional aspects – Personal & Corporate Banking – Global Wealth Management Real estate financing Rental or income-producing real estate financing to private and corporate clients secured by real estate Sensitive to Swiss GDP, unemployment levels, the interest rate environment, real estate collateral values and other regional aspects – Personal & Corporate Banking – Global Wealth Management – Investment Bank Large corporate clients Lending to large corporate and multi- national clients Sensitive to GDP developments, unemployment levels, CDS indices, seasonality, business cycles and collateral values (diverse collateral, including real estate and other collateral types) – Personal & Corporate Banking – Investment Bank – Global Wealth Management – Non-core and Legacy SME clients Lending to small and medium-sized corporate clients Sensitive to GDP developments, unemployment levels, the interest rate environment and, to some extent, seasonality, business cycles and collateral values (diverse collateral, including real estate and other collateral types) – Personal & Corporate Banking Lombard Loans secured by pledges of marketable securities, guarantees and other forms of collateral (including concentration in hedge funds, private equity and unlisted equities), as well as unsecured recourse lending Sensitive to equity and debt markets (e.g., changes in collateral values) – Global Wealth Management – Non-core and Legacy Credit cards Credit card solutions in Switzerland and the US Sensitive to unemployment levels – Personal & Corporate Banking – Global Wealth Management Commodity trade finance Working capital financing of commodity traders, generally extended on a self- liquidating transactional basis Sensitive primarily to the strength of individual transaction structures and collateral values (price volatility of commodities), as the primary source for debt service is directly linked to the shipments financed – Personal & Corporate Banking Consumer financing Consumer loans and car leasing Sensitive to unemployment levels – Personal & Corporate Banking Ship financing Ship financing mainly includes bulk carriers, oil tankers, containers and liquefied natural gas carriers Sensitive to real GDP, earnings of tankers and earnings of bulk carriers – Global Wealth Management – Non-core and Legacy Aircraft financing Corporate aircraft financing Sensitive to collateral values – Global Wealth Management – Non-core and Legacy Financial intermediaries and hedge funds Lending to financial institutions and pension funds, including exposures to broker-dealers and clearing houses Sensitive to GDP development, CDS indices, the interest rate environment, price and volatility risks in financial markets, regulatory and political risk, collateral values (diverse collateral, including real estate and other collateral types) – Personal & Corporate Banking – Investment Bank – Global Wealth Management – Non-core and Legacy › Refer to Note 20f for more details regarding sensitivity The tables certain non-financial instruments that are USD m 31.12.23 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 314,148 314,025 18 0 106 (48) 0 (26) 0 (22) Amounts due from banks 21,161 21,107 17 0 38 (12) (6) (1) 0 (5) Receivables from securities financing transactions measured at amortized cost 99,039 99,039 0 0 0 (2) (2) 0 0 0 Cash collateral receivables on derivative instruments 50,082 50,082 0 0 0 0 0 0 0 0 Loans and advances to customers 639,844 611,019 24,408 2,869 1,548 (1,698) (423) (289) (862) (123) of which: Private clients with mortgages 268,616 256,614 10,695 929 378 (209) (62) (97) (39) (11) of which: Real estate financing 97,817 92,084 5,367 270 97 (103) (41) (31) (21) (11) of which: Large corporate clients 30,084 25,671 3,182 700 532 (575) (105) (70) (312) (89) of which: SME clients 25,957 22,155 2,919 754 129 (402) (71) (42) (277) (13) of which: Lombard 156,353 156,299 3 50 0 (41) (13) (11) (17) 0 of which: Credit cards 2,041 1,564 438 39 0 (42) (6) (11) (24) 0 of which: Commodity trade finance 5,727 5,662 25 22 18 (130) (18) (1) (111) 0 of which: Ship / aircraft financing 9,214 8,920 273 4 17 (51) (48) (3) 0 (1) of which: Consumer financing 2,982 2,795 92 38 57 (59) (22) (17) (20) 0 Other financial assets measured at amortized cost 65,498 64,311 968 158 61 (151) (41) (10) (94) (5) of which: Loans to financial advisors 2,615 2,422 79 114 0 (49) (4) (1) (44) 0 Total financial assets measured at amortized cost 1,189,773 1,159,583 25,410 3,027 1,753 (1,911) (473) (326) (956) (156) Financial assets measured at fair value through other comprehensive income 2,233 2,233 0 0 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 1,192,006 1,161,816 25,410 3,027 1,753 (1,911) (473) (326) (956) (156) of which: Credit Suisse 2 443,354 433,789 6,935 878 1,753 (855) (277) (109) (314) (156) 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 46,191 44,487 1,495 151 58 (73) (28) (22) (23) 0 of which: Large corporate clients 9,267 8,138 1,023 89 17 (31) (11) (13) (7) 0 of which: SME clients 2,839 2,469 337 31 2 (14) (4) (5) (5) 0 of which: Financial intermediaries and hedge funds 22,922 22,876 46 0 0 (12) (8) (3) 0 0 of which: Lombard 5,045 5,045 0 0 0 (1) 0 0 (1) 0 of which: Commodity trade finance 2,037 2,027 9 0 0 (1) (1) 0 0 0 Irrevocable loan commitments 91,643 87,080 4,297 218 48 (178) (117) (51) (14) 4 of which: Large corporate clients 50,696 46,708 3,881 59 48 (149) (94) (41) (12) (2) Forward starting reverse repurchase and securities borrowing agreements 18,444 18,444 0 0 0 0 0 0 0 0 Unconditionally revocable loan commitments 163,256 160,456 2,654 146 0 (95) (78) (17) 0 0 of which: Real estate financing 15,846 15,033 813 0 0 (14) (11) (3) 0 0 of which: Large corporate clients 17,139 16,678 454 8 0 (23) (17) (6) 0 0 of which: SME clients 11,658 11,253 375 29 0 (38) (33) (5) 0 0 of which: Lombard 77,618 77,618 0 1 0 0 0 0 0 0 of which: Credit cards 10,458 9,932 522 4 0 (10) (8) (2) 0 0 Irrevocable committed prolongation of existing loans 4,608 4,593 11 4 0 (4) (4) 0 0 0 Total off-balance sheet financial instruments and other credit lines 324,141 315,060 8,456 519 106 (350) (226) (90) (37) 3 Total allowances and provisions (2,261) (700) (416) (993) (153) of which: Credit Suisse 2 187,519 183,235 3,894 285 106 (1,018) (392) (143) (330) (153) 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 31.12.22 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 Amounts due from banks 14,792 14,792 1 0 (6) (5) (1) 0 Receivables from securities financing transactions measured at amortized 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 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 2,239 2,239 0 0 0 0 0 0 Total on-balance sheet financial assets within the scope of ECL requirements 729,807 712,078 16,044 1,685 (889) (154) (199) (537) Total exposure ECL provisions Off-balance sheet (within the 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 Committed unconditionally revocable credit lines 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 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 measured at amortized cost represents the total gross exposure net of the respective Coverage ratios are carrying amount Loans and Loans to financial advisors . These ratios are influenced by the following key factors: – Lombard loans are generally secured with marketable securities in portfolios that are, as a rule, highly diversified, strict lending policies that are intended to ensure that – mortgage loans low loan-to-value ratios and strong debt service capabilities; – the amount of unsecured retail lending (including credit cards and – lending in Switzerland includes government-backed COVID-19 loans; – contractual Lombard lending between two one and two years with related loan commitments up to – write-offs of or forgiven, reduces the coverage ratios. The total combined on- and off-balance sheet coverage ratio was 22 1 higher than 11 1 31 December 2022; 21 %, 1 ratio was 7 %. 31.12.23 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 268,825 256,675 10,792 968 389 8 2 90 6 399 283 Real estate financing 97,920 92,124 5,398 290 108 11 4 57 7 713 980 Total real estate lending 366,745 348,800 16,190 1,258 497 9 3 79 6 472 434 Large corporate clients 30,660 25,775 3,252 1,012 620 188 41 215 60 3,083 1,429 SME clients 26,359 22,226 2,961 1,031 142 153 32 141 45 2,689 893 Total corporate lending 57,019 48,001 6,213 2,042 762 172 37 180 53 2,884 1,329 Lombard 156,394 156,312 15 67 0 3 1 7,616 2 2,487 0 Credit cards 2,083 1,571 449 63 0 200 40 253 87 3,801 0 Commodity trade finance 5,858 5,681 26 133 18 223 32 365 34 8,333 6 Ship / aircraft financing 9,265 8,968 276 4 17 56 54 99 55 0 315 Consumer financing 3,041 2,817 110 58 57 195 79 1,559 135 3,422 7 Other loans and advances to customers 41,136 39,293 1,419 105 320 21 10 39 11 3,981 0 Loans to financial advisors 2,665 2,426 80 159 0 185 17 122 20 2,793 0 Total other lending 220,442 217,068 2,373 589 412 21 7 210 9 4,376 8 Total 1 644,206 613,869 24,777 3,889 1,671 27 7 117 11 2,329 737 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 9,782 9,505 261 15 0 6 5 27 6 40 0 Real estate financing 17,107 16,281 826 0 0 9 8 44 9 0 0 Total real estate lending 26,889 25,786 1,088 15 0 8 7 40 8 40 0 Large corporate clients 77,103 71,524 5,357 157 65 26 17 111 24 1,217 242 SME clients 16,762 15,868 812 80 2 40 29 196 37 640 0 Total corporate lending 93,865 87,392 6,170 236 67 29 19 122 26 1,022 221 Lombard 86,173 86,173 0 1 0 0 0 0 0 0 0 Credit cards 10,458 9,932 522 4 0 10 8 35 10 0 0 Commodity trade finance 4,640 4,628 13 0 0 6 5 151 6 0 0 Ship / aircraft financing 1,053 1,053 0 0 0 26 26 0 26 0 0 Consumer financing 153 153 0 0 0 0 0 0 0 0 0 Financial intermediaries and hedge funds 42,578 42,325 253 0 0 3 3 142 3 0 0 Other off-balance sheet commitments 39,887 39,174 411 263 39 7 4 111 5 453 0 Total other lending 184,944 183,438 1,199 268 39 3 2 85 3 486 0 Total 2 305,697 296,616 8,456 519 106 11 8 107 10 717 0 Total on- and off-balance sheet 3 949,904 910,485 33,233 4,408 1,777 22 7 114 11 2,140 675 1 Includes Loans and advances repurchase and securities borrowing agreements. 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 repurchase and securities borrowing agreements.

Derivative instruments

Derivative instruments	12 Months Ended
	Dec. 31, 2023
Disclosure Of Derivative Financial Instruments [Line Items]
Disclosure Of Derivative Financial Instruments Explanatory	Note 11 Overview Over-the-counter (OTC) derivative Association (ISDA) master its counterparties. Terms are negotiated directly with counterparties and the contracts have industry-standard settlement mechanisms prescribed by ISDA houses, in particular interest rate swaps with LCH, which Regulators margins on certain OTC derivative contracts, which may Exchange-traded derivatives (ETD) are standardized in terms of their amounts and sold changes in value and, consequently, reduced credit risk. Most structuring and marketing of derivative products to customers to enable them to take, transfer, modify or reduce current or expected quoting volume. The Group also uses various derivative instruments › Refer to Notes 16 and 21 for more information about › Refer to Note 26 for more information about derivatives Risks of derivative instruments The exposure; however, the positive replacement values related to a respective counterparty are rarely an adequate reflection of the the one hand, replacement values can increase over time (potential future exposure), while, on the other hand, may be mitigated measures used these additional factors. › Refer to Note 22 for more information about derivative permitted under enforceable netting arrangements › Refer to the “Risk management and control” section of this instruments Derivative instruments 31.12.23 31.12.22 USD bn Derivative financial assets Derivative financial liabilities Notional amounts related to derivative financial assets and liabilities 1,2 Other notional amounts 1,3 Derivative financial assets Derivative financial liabilities Notional amounts related to derivative financial assets and liabilities 1,2 Other notional amounts 1,3 Interest rate 55.6 52.9 3,524.1 20,073.9 39.8 37.5 2,080.3 11,255.4 of which: forwards (OTC) 4 0.1 0.1 122.4 2,532.2 0.2 0.0 72.3 792.7 of which: swaps (OTC) 37.7 32.6 1,331.6 16,601.3 25.2 19.8 607.1 9,728.6 of which: options (OTC) 17.7 20.0 2,066.7 14.2 17.5 1,392.5 of which: futures (ETD) 843.7 606.3 of which: options (ETD) 0.0 0.0 3.4 96.1 0.0 0.0 8.3 127.7 Credit derivatives 4.0 4.7 274.9 1.0 1.2 73.9 of which: credit default swaps (OTC) 3.8 4.4 269.6 0.9 1.0 71.0 of which: total return swaps (OTC) 0.1 0.3 3.7 0.1 0.2 1.2 Foreign exchange 78.7 89.9 6,913.3 180.4 85.5 88.5 6,079.8 40.1 of which: forwards (OTC) 18.7 24.1 2,152.0 26.5 28.6 1,763.6 of which: swaps (OTC) 52.2 58.1 3,809.7 178.7 49.6 50.4 3,233.0 38.4 of which: options (OTC) 7.7 7.6 944.4 9.3 9.2 1,073.2 Equity / index 35.5 41.4 1,396.8 95.0 22.2 26.1 885.8 63.4 of which: swaps (OTC) 6.6 9.2 273.3 5.3 6.6 217.5 of which: options (OTC) 4.9 9.0 245.2 2.8 4.4 140.6 of which: futures (ETD) 86.6 52.2 of which: options (ETD) 15.4 14.3 876.6 8.5 9.0 8.1 526.7 11.2 of which: client-cleared transactions (ETD) 8.3 8.2 5.1 7.0 Commodities 2.0 1.6 142.9 16.4 1.4 1.4 132.3 17.6 of which: swaps (OTC) 0.9 0.7 50.0 0.5 0.7 38.6 of which: options (OTC) 0.6 0.3 42.3 0.4 0.3 29.1 of which: futures (ETD) 13.7 16.4 of which: forwards (ETD) 0.0 0.0 31.5 0.0 0.0 47.7 of which: client-cleared transactions (ETD) 0.2 0.3 0.2 0.3 Other 5 0.4 1.6 116.5 0.2 0.1 49.8 Total derivative instruments, based on netting under IFRS Accounting Standards 6 176.1 192.2 12,368.5 20,365.8 150.1 154.9 9,301.8 11,376.5 of which: Credit Suisse 7 47.4 53.5 2,194.1 6,337.4 1 In cases where derivative financial instruments 2 Notional amounts of client-cleared ETD and OTC transactions through central clearing counterparties are not disclosed, as they have 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 payables on derivative instruments and was not material for any of the periods presented. measured at fair value through profit or derivative financial instruments presented net on insolvency of arrangements. On 50 % (31 December 2022: 46 %) mature 30 % (31 December 2022: 32 %) within one to 20 % (31 December 2022: 22 %) after five years. Notional amounts of interest rate contracts cleared through either a central counterparty settled or economically Other notional amounts are categorized into maturity Other notional 8.8 trn compared mainly reflecting the volume primarily due to the unwinding of Credit Suisse business.

Property, equipment and softwar

Property, equipment and software	12 Months Ended
	Dec. 31, 2023
Property Equipment And Software [Line Items]
Disclosure of property, equipment and software [text block]	Note 12 At historical cost less accumulated depreciation USD m Owned properties and equipment 1 Leased properties and equipment 2 Software Projects in progress 2023 3 2022 3 Historical cost Balance at the beginning of the year 11,587 4,459 9,944 1,136 27,127 27,113 Balance recognized upon the acquisition of the Credit Suisse 4 2,975 1,941 949 190 6,055 Additions 212 100 92 1,393 1,796 2,057 Disposals / write-offs 5 (428) (67) (1,295) 0 (1,791) (501) Reclassifications 1,392 6 1,728 (1,923) 1,203 (1,223) Foreign currency translation 972 174 309 68 1,523 (319) Balance at the end of the year 16,710 6,613 11,726 863 35,913 27,127 Accumulated depreciation Balance at the beginning of the year 7,425 1,714 5,699 14,839 14,225 Depreciation 830 722 1,469 3,022 2,033 Impairment 6 189 125 279 593 3 Disposals / write-offs 5 (420) (66) (1,296) (1,783) (497) Reclassifications 673 5 9 686 (761) Foreign currency translation 510 45 152 708 (164) Balance at the end of the year 9,207 2,545 6,312 18,064 14,839 Net book value Net book value at the beginning of the year 4,162 2,746 4,245 1,136 12,288 12,888 Net book value at the end of the year 7,503 4,068 5,414 863 7 17,849 12,288 of which: Credit Suisse 4 3,060 1,647 805 120 5,631 1 Includes leasehold relation to real estate, including offices, retail branches and sales offices. The total cash outflow for leases during 2023 was USD 878 m (2022: USD 614 m). Interest expense on lease liabilities is included within Interest expense from financial instruments material gains or losses arising from sale-and-leaseback transactions in 2023 assets. that are no longer used, for which the recoverable amount based on a 26 m for Global Wealth Management, USD 8 m for Personal & Corporate Banking, USD 6 m for Asset Management, USD 246 m for Group Items and USD 307 m for Non-core and Legacy. 542 m related to software and USD 322 m related to Owned properties and equipment.

Goodwill and intangible assets

Goodwill and intangible assets	12 Months Ended
	Dec. 31, 2023
Disclosure Goodwill And Intangible Assets [Line Items]
Disclosure Of Intangible Assets And Goodwill Explanatory	Note 13 Introduction UBS performs an impairment test on its goodwill assets UBS considers Asset Management, at which the performance of investment (and the a significant amount of goodwill in Global Wealth Management relates to the acquisition of PaineWebber Group, Inc. in 2000, which Americas, Management International (consisting of EMEA, Asia Pacific and Global). The impairment with the carrying amount of the respective CGU. UBS determines on their value in use. An impairment charge is recognized The acquisition statement on on the balance sheet. › Refer to Note 2 for more information about the acquisition As 6.0 bn, 3.7 bn carried by 1.2 bn was Switzerland and International CGU, and USD 1.1 bn was carried by Asset Management. Based on the impairment testing methodology described CGUs were not impaired. For each 31 December performed as of 31 December 2023. Methodology for goodwill impairment testing The recoverable that consider features of sum of adjusted for the effect of the capital period. The the third-year For period was extended from three to five years (with a planning product capabilities and offerings in this market years did not trigger, The carrying amount for each framework, denominator (both their framework management assumptions. Attributed equity considered a reasonable applied in the respective CGU. Assumptions Valuation parameters applicable. The available to shareholders in years one to three, to changes in the discount rates and to changes in the long-term growth rate. The applied Earnings available approved by the Board of Directors. The quantitative and qualitative inputs from both internal and external analysts and the view of management. They also take into account term growth rates are determined at the regional level based Key reasonably possible change to 20 %, the discount rates 1.5 0.75 points. Under all scenarios, or International, and Asset Management. If the estimated earnings attributable to Asset Management may become impaired in the impairment of and, expected on the Group’s capital ratios. Discount and growth rates Discount rates Growth rates In % 31.12.23 31.12.22 31.12.23 31.12.22 Global Wealth Management Americas 9.5 10.5 3.8 3.8 Global Wealth Management Switzerland and International 9.5 9.4 3.4 3.6 Asset Management 9.0 9.5 3.3 3.4 USD m Goodwill Intangible assets 1 2023 2022 Historical cost Balance at the beginning of the year 6,043 1,598 7,641 7,739 Acquisition of the Credit Suisse Group 2 0 1,287 1,287 0 Additions 0 6 6 0 Disposals 3 (10) (30) (40) (22) Foreign currency translation 10 102 112 (76) Balance at the end of the year 6,043 2,964 9,006 7,641 Accumulated amortization and impairment Balance at the beginning of the year 0 1,374 1,374 1,360 Amortization 134 134 26 Impairment / (reversal of impairment) 0 0 0 (1) Disposals 3 0 (30) (30) 0 Foreign currency translation 0 13 13 (11) Balance at the end of the year 0 1,491 1,491 1,374 Net book value at the end of the year 6,043 1,473 7,515 6,267 of which: Global Wealth Management Americas 3,712 36 3,748 3,740 of which: Global Wealth Management Switzerland and International 1,182 55 1,236 1,225 of which: Personal & Corporate Banking 0 908 908 0 of which: Asset Management 1,149 0 1,149 1,167 of which: Investment Bank 0 135 135 135 of which: Non-core and Legacy 0 339 339 0 1 Intangible assets Group, Inc. in 2000. that have been disposed of. Refer to Note 30 for more information. The table below presents estimated aggregated USD m Intangible assets Estimated aggregated amortization expenses for: 2024 211 2025 194 2026 181 2027 173 2028 161 Thereafter 551 Not amortized due to indefinite useful life 3 Total 1,473

Other financial and non-financi

Other financial and non-financial assets	12 Months Ended
	Dec. 31, 2023
Other Financial And Non Financial Assets [Line Items]
Other Financial And Non Financial Assets Explanatory [textblock]	Note 14 a) Other financial assets measured at amortized cost USD m 31.12.23 31.12.22 Debt securities 45,057 44,594 Loans to financial advisors 2,615 2,611 Fee- and commission-related receivables 2,619 1,812 Finance lease receivables 6,288 1,315 Settlement and clearing accounts 338 1,175 Accrued interest income 3,163 1,259 Other 5,418 1 499 Total other financial assets measured at amortized cost 65,498 53,264 2 11,378 1 Predominantly includes cash collateral provided to exchanges and clearing houses to secure securities trading activity through those counterparties. the Credit Suisse Group. Effective from 1 April 2022, UBS Financial assets measured at fair through other comprehensive income with a fair value of USD 6.9 bn (the Portfolio) to Other financial assets measured at amortized cost . The Portfolio’s cumulative fair value losses of USD 449 m pre-tax and USD 333 m post-tax, previously recognized in Other comprehensive , reclassification date, so that a value 7.4 bn as Portfolio mortgage-backed securities, held as a direct result impacted UBS Bank the business, years preceding the reclassification date, UBS Bank USA’s deposit base grew cash balances, with a number of new products being launched, additional lending and a broader range of customer and the announcement the contractual assets mature, requiring a reclassification of the Portfolio b) Other non-financial assets USD m 31.12.23 31.12.22 Precious metals and other physical commodities 5,930 4,471 Deposits and collateral provided in connection with litigation, 1 2,726 2,205 Prepaid expenses 2,080 1,076 Current tax assets 1,456 182 VAT, 1,327 1,286 Properties and other non-current assets held for sale 188 369 Other 2,342 578 Total other non-financial assets 16,049 10,166 of which: Credit Suisse 2 7,099 1 Refer to Note 18 for more information.

Customer deposits

Customer deposits	12 Months Ended
	Dec. 31, 2023
Disclosure Due To Banks And Customers [Line Items]
Disclosure of due to banks and customers [text block]	Note 15 USD m 31.12.23 31.12.22 Demand deposits 240,942 180,822 Retail savings / deposits 186,087 149,310 Sweep deposits 41,045 69,223 Time deposits 1 323,955 125,696 Total customer deposits 792,029 525,051 of which: Credit Suisse 2 236,049 1 Includes customer deposits in UBS AG Jersey Branch and Credit the Credit Suisse Group. Customer deposits increased positive foreign currency In addition, customers continued to shift funds from demand and

Debt issued designated at fair

Debt issued designated at fair value	12 Months Ended
	Dec. 31, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Financial Instruments Designated At Fair Value Through Profit Or Loss Explanatory	Note 16 USD m 31.12.23 31.12.22 Issued debt instruments Equity-linked 1 60,573 41,901 Rates-linked 28,883 16,276 Credit-linked 7,730 2,170 Fixed-rate 20,541 6,538 Commodity-linked 3,844 4,294 Other 6,718 2,459 of which: debt that contributes to total loss-absorbing capacity 4,629 1,959 Total debt issued designated at fair value 2 128,289 73,638 of which: issued by UBS AG standalone with original maturity greater 3 73,544 57,750 of which: issued by Credit Suisse AG standalone with original maturity 3 29,948 of which: issued by Credit Suisse International standalone 3 1,471 1 Includes investment fund 37.2 bn as of 31 features. As of 31 December 2023, 100 % of the balance was unsecured in UBS AG 100 %), 100% was unsecured in Credit Suisse AG 65 % was unsecured in Credit Suisse AG International.

Debt issued held at amortized c

Debt issued held at amortized cost	12 Months Ended
	Dec. 31, 2023
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Debt Securities Explanatory	Note 17 USD m 31.12.23 31.12.22 Short-term debt 1 38,530 29,676 of which: Credit Suisse 1,245 Senior unsecured debt 147,547 59,965 of which: contributes to total loss-absorbing capacity (TLAC) 101,939 42,073 of which: issued by UBS AG standalone with original maturity greater 18,446 17,892 of which: issued by Credit Suisse AG standalone with original maturity 24,609 Covered bonds 5,214 0 Subordinated debt 17,644 16,017 of which: eligible as high-trigger loss-absorbing additional 10,744 9,882 of which: eligible as low-trigger loss-absorbing additional 1,214 1,189 of which: eligible as low-trigger loss-absorbing tier 2 capital 0 2,422 of which: eligible as non-Basel III-compliant tier 2 capital 538 536 Debt issued through the Swiss central mortgage institutions 27,377 8,962 Other long-term debt 1,506 Long-term debt 2 199,288 84,945 of which: Credit Suisse 3 45,640 Total debt issued measured at amortized cost 4,5 237,817 114,621 1 Debt with an original contractual maturity classification of debt bifurcated embedded derivatives, the debt, 100 % of the balance was unsecured as of 31 December 2023. The Group uses held at amortized in Note 1a and Note 26. As a result of applying hedge accounting, the debt issued 3.0 bn as 6.1 bn as 2022, reflecting changes in fair value due to Subordinated debt consists other present debt instruments outstanding as of 31 December 2023 pay › Refer to Note 24 for maturity information

Provisions

Provisions	12 Months Ended
	Dec. 31, 2023
Disclosure Of Other Provisions [Line Items]
Disclosure Of Provisions Explanatory	Note 18 a) Provisions The table below presents an overview of total provisions USD m 31.12.23 31.12.22 Provisions related to expected credit losses (IFRS 9, Financial Instruments ) 1 350 201 Provisions related to Credit Suisse loan commitments (IFRS Business Combinations ) 2 1,924 Provisions related to litigation, regulatory and similar matters Provisions, Contingent Liabilities and Contingent Assets ) 4,020 2,586 Acquisition-related contingent liabilities (IFRS 3, Business Combinations ) 2 3,832 Restructuring, real-estate and other provisions (IAS 37, ) 2,123 456 Total provisions and contingent liabilities 12,250 3,243 of which: Credit Suisse 2 9,681 1 Refer to Note 10 for more information. The Provisions, Contingent Assets . USD m Litigation, regulatory and similar matters 1 Restructuring 2 Real estate 3 Other 4 Total 2023 Balance at the beginning of the year 2,586 130 129 197 3,042 Provisions recognized upon the acquisition of the Credit 5 2,883 68 108 578 3,637 Increase in provisions recognized in the income statement 909 1,031 12 492 2,444 Release of provisions recognized in the income statement (97) (129) (1) (137) (365) Provisions used in conformity with designated purpose (2,344) (370) (15) (29) (2,759) Foreign currency translation and other movements 85 12 27 21 145 Balance at the end of the year 4,020 741 259 1,123 6,144 of which: Credit Suisse 5 2,210 519 114 918 3,762 1 Consists of provisions for losses resulting from legal, liability and compliance risks. 448 m of provisions for onerous contracts related to real estate as of 31 December 2023 (31 December 2022: USD 28 m) and 294 m of 102 m). properties. Restructuring provisions relate to onerous contracts for property and personnel-related provisions. property are recognized when UBS is committed and maintenance, provisions are natural estimated costs. Other provisions mainly include contracts are to be received. Information about provisions is included in Note 18b. There are no material contingent

Litigation, regulatory and simi

Litigation, regulatory and similar matters	12 Months Ended
	Dec. 31, 2023
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Disclosure Of Contingent Liabilities Explanatory	b) Litigation, regulatory and similar matters The Group operates in a legal and regulatory environment from disputes and regulatory proceedings. As a result, UBS (which for purposes of this Note may refer to and/or litigation, arbitration, and regulatory and criminal investigations Such matters particularly This may liability, even matters established and other contingent liabilities. opinion obligation as a result of past reliably estimated. been claims. If any cannot be no provision Developments relating to statements, developments reporting period Specific considers financial, reputational and other effects. The amount of damages claimed, the is provided where available and appropriate in order to assist users in In the case of certain matters below, we no such statement. seriously our position with other parties in the matter because it would reveal reliably estimable that preclude provision, either: (a) we have that fact believes an outflow of resources to be probable and reliably estimable. With respect to certain litigation, regulatory and similar matters for which we have established provisions, we are able to estimate the expected for which over the relevant time periods. The aggregate amount provisioned for litigation, regulatory and similar matters table in Note 18a similar matters as a class of contingent liabilities beyond what has been identified as a consequence of the acquisition of Credit Suisse proceedings that involve of adjudication, cannot provide a UBS believes that the aggregate amount of possible future losses from this class exceeds the level of current provisions. Litigation, regulatory and or conviction UBS to obtain waivers of regulatory disqualifications to maintain certain operations, limit, suspend or terminate UBS’s participation in termination of licenses, authorizations or participations, could The risk of loss associated with of determining capital requirements. Information concerning our capital requirements and the calculation of operational risk for this purpose is included in the “Capital, liquidity Matters related the provisions Credit adjustment 3.8 bn obligations included result in an that generally apply under IFRS Accounting Standards and Provisions used 1.4 bn recorded settlement related to UBS’s issuance, underwriting and sale of US residential Provisions for litigation, regulatory and similar matters 1 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 2 Group Items 2 Total 2023 Balance at the beginning of the year 1,182 159 8 308 771 158 2,586 Provisions recognized upon the acquisition of the Credit 3 87 1 0 2 2,789 4 2,883 Increase in provisions recognized in the income statement 133 1 8 81 684 2 909 Release of provisions recognized in the income statement (8) (10) 0 (3) (48) (29) (97) Provisions used in conformity with designated purpose (199) 0 (1) (106) (2,036) (1) (2,344) Foreign currency translation and other movements 41 6 (1) 12 26 0 85 Balance at the end of the year 1,235 157 15 294 2,186 134 4,020 of which: Credit Suisse 3 15 1 2 8 2,182 2 2,210 1 Provisions, if any, B11 and B12 of this Note are recorded in Non-core and Legacy; provisions, if any, for the matters described in items B13 and B14 of this Note are recorded in Group Items. Provisions, if any, for the matters described in items A1 and A4 Bank and Group revised to reflect these changes. A. Litigation, regulatory and similar matters involving 1. Inquiries regarding cross-border wealth management businesses Tax and regulatory authorities in a number of employees located in their UBS and other financial institutions. Since 2013, UBS (France) S.A., UBS AG and certain former employees have been under investigation in to UBS’s cross-border business with French clients. In connection with this UBS AG to provide bail (“ caution ”) of EUR 1.1 bn. In 2019, the court territory unlawful solicitation 3.7 bn on UBS AG and UBS (France) S.A. and awarded 800 m of civil damages to the French Appeal took place in March 2021. In and aggravated laundering of the proceeds of tax fraud. The court ordered a fine of EUR 3.75 m, the confiscation of EUR 1 bn, and 800 m. UBS Court. regarding unlawful solicitation and of EUR 1 bn, the penalty 3.75 m and the 800 m of civil been remanded to the EUR 800 m of civil damages to UBS AG. Our balance sheet the applicable accounting standard. As in the case of other matters outflow information and accordingly may ultimately have recognized. 2. Madoff In relation to the Bernard L. Madoff Investment Securities LLC (BMIS) investment (now UBS Europe SE, Luxembourg branch) and certain other UBS of regulators, Surveillance du substantially all assets of which direct or documentation manager, In 2009 and 2010, certain individuals, 2.1 bn, which includes amounts that the funds may be held liable A large number of alleged beneficiaries have filed claims against UBS entities (and non-UBS entities) for purported losses relating to the Madoff fraud. The majority of these in Supreme Court has dismissed a further appeal in one of In the US, the BMIS Trustee one of the offshore funds. The total amount 2 bn. In 2014, except 125 m preference payments. In 2016, the of Appeals reversed a petition further proceedings. 3. Foreign exchange, LIBOR and benchmark rates, and other Foreign concerning investigations, Commission. jurisdictions in businesses. Foreign exchange-related civil litigation: jurisdictions transactions with any of transactions with on such 141 m and cooperation to the filed individual competition laws and unjust enrichment. UBS and the other In 2015, a and businesses their own end use. defendants’ summary judgment motion, dismissing the case. LIBOR regarding potential improper attempts by UBS, times. investigating jurisdictions, including the with settlement with WEKO, as the Secretariat of WEKO has asserted LIBOR and other the federal interest rate benchmark-based derivatives. asserting losses related adjustable investments certain benchmark interest rates, including USD LIBOR, Euroyen TIBOR, Yen LIBOR, EURIBOR, CHF LIBOR, GBP LIBOR and seek unspecified compensatory and other damages under USD LIBOR class and individual In 2013 and 2015, in whole or in part, certain state common Circuit affirmed proceedings. The defendants. Separately, in individual plaintiffs’ claims and motions for class to appeal that was conspired monopolized defendants’ motion to complaint. complaint. appealed the 2024. Other benchmark class actions in the US: Yen – standing grounds. amended complaint focused the against the remaining defendant in the district court. CHF LIBOR filed an amended the Second Circuit granted the parties’ joint motion Plaintiffs filed a third amended in January 2023. EURIBOR for lack of personal jurisdiction. Plaintiffs have appealed. GBP LIBOR Government bonds: on behalf filed in 2017 in the US District Court for the Southern District of New York alleging that to, and under the granted in 2021. the court granted defendants’ district government bonds. In 2021, antitrust rules in 2007–2011 relating 172 m. UBS is appealing the amount of the fine. With respect to our balance the applicable accounting standard. As in the case of other matters outflow information and accordingly may ultimately have recognized. 4. Swiss retrocessions The Federal Supreme Court of Switzerland for distributing third-party and intra-group investment funds and structured products must be disclosed and surrendered to clients who have entered a supervisory note to and has notified all potentially affected clients. The Supreme Court decision has resulted, and continues to result, in a number of client requests for potentially account when assessing these cases include, among other things, the existence of a discretionary or not the client documentation contained a valid waiver Our amount that UBS on client requests and matters for which determined substantially greater (or may be less) than the provision that B. Litigation regulatory and similar matters involving 1. Mortgage-related matters Government and regulatory related matters : DOJ RMBS settlement (CSS LLC) and Justice (DOJ) related to its legacy 2007. The marketing, structuring, arrangement, underwriting, a civil monetary penalty provide certain levels of consumer relief measures, including affordable housing payments DOJ and Credit Suisse relief consumer relief obligations, and Credit Suisse currently anticipates that it will take much longer than the five-year period provided in appetite and market of consumer 5 % per annum of the outstanding amount these consumer relief matters. Civil litigation: various transactions. These cases currently allege breached loans as required losses to date or principal issuance. DLJ Securities Corporation Home Equity Loan Trust, Series 2006-HE7, in which plaintiff alleges damages of not 374 m in granted in part and the parties alleges damages of 436 m; (iii) one alleges 420 m; judgment in this the decision and ordered held between January and February 2023, and a decision is pending; (iv) one action brought by Home Equity Asset 2007-2, in 495 m; and (v) Trust 2007-NC1, in which no damages amount is alleged. DLJ was damages of not less 206 m. In March In November 2023, by the trustee 2024. 2. Tax and securities law matters In May border matters. monitor that both accordance with Credit Suisse AG’s obligations under services information to US authorities 2014 Committee issued DOJ to investigate Credit Suisse AG’s compliance with In February violated the False Claims Act by Credit Suisse AG to pay a criminal fine in 2014 that dismiss the Appeals for the Fourth Circuit. 3. Rates-related matters Regulatory matters : Regulatory authorities for an extended period respect to a number of currencies, as well as the pricing of certain related derivatives. These ongoing investigations have included information requests financial Dollar LIBOR, Swiss Franc LIBOR and Euro LIBOR). Regulatory authorities in a number of jurisdictions, including WEKO, the European Commission (Commission), the South African Competition Commission and trading activities, trading) markets. Credit Suisse continues to cooperate with Credit Suisse Group Objections and a alleging that Credit business. In December 2021, the Commission issued a 83.3 m. In February 2022, Credit Suisse appealed this decision to the EU General Court. The reference rates sovereign and agency of Objections practices in imposing a fine of EUR 11.9 m. In July 2021, Credit Suisse appealed this decision to the Civil litigation: USD LIBOR Beginning in 2011, lawsuits reputation and increase litigation in the US District Court for the Southern District In a series of rulings between 2013 and 2019 Suisse entities Commodity narrowed the set of defendants in the LIBOR actions (including the dismissal of cases on personal jurisdiction and statute of limitation grounds). After a appealed Circuit), remanded the case to the SDNY. Separately, in May 2017, the SDNY denied certification in two by over-the-counter purchasers of LIBOR-linked derivatives. USD certain of its affiliates, were named that panel court denied plaintiffs’ LIBOR or automatically setting motions to dismiss. to dismiss the amended complaint. In October 2023, the court dismissed leave to amend. Plaintiffs have appealed. CHF LIBOR litigation Group AG, LIBOR to benefit defendants’ trading positions. After defendants’ motion to dismiss was granted and In February and agreement to settle all claims. Foreign exchange litigation in civil lawsuits relating to the alleged manipulation of foreign exchange Credit Suisse AG, which made allegations to settle all claims. The settlement remains subject to court Treasury markets litigation a number alleged that the defendants in the in securities. In the defendants, SSA bonds litigation named in two Canadian to and purchased from investors in February 2020. In October 2022, settlement remains subject to court approval. Credit default swap auction litigation – In June 2021, Credit Suisse Group AG and affiliates, along with entities, were alleging manipulation of In June 2023, the filed a motion claims settlement. In February 2024, the plaintiffs filed a notice of 4. OTC trading cases Interest rate named in rate swaps, alleging that dealer defendants conspired with trading platforms to prevent the development of interest rate swap exchanges. Javelin Capital Markets claim to have suffered consolidated in a multi-district litigation in the SDNY. Defendants moved to dismiss the putative class and these motions. In February 2019, class plaintiffs in the consolidated multi-district litigation filed a motion for class certification. In March 2019, class plaintiffs filed a fourth into an agreement to settle all class action the SDNY denied the motion for class certification. In January 2024, class plaintiffs filed a petition for denial of class certification. Credit default swaps : In June were named in a law in successfully entering the In January 2023, the court granted the motion, dismissing all claims Stock : originally named in a number of civil lawsuits in the SDNY, certain of which are brought by class action plaintiffs alleging that the defendants trading platforms that sought to enter the market, and certain of which are brought by trading platforms that sought to enter the market alleging into an approval to the agreement to settle all class action claims. The In October 2021, in stock loans that sought granted defendants’ Circuit affirmed the decision granting defendants’ motion to dismiss. Odd-lot corporate bond litigation: In April 2020, CSS LLC and other financial action complaint platforms defendants’ motion to dismiss. Plaintiffs have appealed. 5. ATA litigation Since November 2014, in two instances, Credit Suisse AG, and Terrorism allege including the defendants, for authorities. The lawsuits terrorist organizations actively engaged in harming US Court of Appeals for the Second Circuit affirmed dismiss the first filed certiorari. In February 2024, plaintiffs cases, four entry of the court allowing plaintiffs to replead. 6. Customer account matters Several clients have claimed that a former relationship the Credit Suisse complaint initiated a the Geneva Prosecutor’s Office. In February 2018, the former relationship manager was sentenced to five years in prison by approximately USD 130 m. Several parties ruled in the appeal criminal court. Federal Supreme Court rendered its judgment on the of Appeals of Geneva. Civil lawsuits have findings established in the criminal proceedings against the In Singapore, the Singapore International Commercial Court issued a first instance judgment finding for the plaintiffs parties’ adopted directions, the parties filed their proposed the court 742.73 m, excluding This figure does which are relation to this award judgment and has execution of its accrued are paid into court deposit within 21 In Bermuda, in place in the Supreme Court of Bermuda in instance judgment in March 2022, finding for the plaintiff. In May awarding damages of USD 607.35 m to the to the pending 42 condition was satisfied. In June 2023, the Bermuda Court of Appeal issued its judgment the Supreme Court Ltd. had Credit Suisse Life (Bermuda) Ltd. had made fraudulent misrepresentations. In July 2023, Credit Suisse Life (Bermuda) Ltd. filed its execution of the Bermuda Court of Appeal’s judgment pending the outcome of the appeal to the Judicial Committee the Privy added to the escrow account 3.5 %. A hearing on the applications to appeal and stay of execution took 75 m was released from the escrow account and ordered that the current Council until 536.64 m plus interest. In Switzerland, statements of claim served in March 2023. 7. Mozambique matter Credit regarding certain Credit Suisse and Empresa Moçambicana de Atum S.A. (EMATUM), a related to the exchange of employees pleaded guilty in the EDNY to accepting improper personal benefits in carried out with two Mozambique state enterprises. In October 2021, Credit Suisse reached settlements UK Financial Suisse failed to appropriately Group AG entered into a three-year Deferred Prosecution Agreement (DPA) with information Cease and Desist Order by the must continue efforts for with, Agreement and pleaded guilty to one count of conspiracy to the same DOJ and 275 m. resolution 22.6 m in issued by the Republic of Mozambique. In connection with the resolution with the FCA, Credit Suisse paid a penalty of approximately USD 200 m and, further to an agreement with the FCA, forgave USD 200 m of debt owed to Credit Suisse by Mozambique. The FINMA Suisse’s implementation of party implemented. FINMA also arranged for certain existing transactions to be reviewed on the basis of specific risk criteria, and required enhanced In February 2019, certain Credit Suisse entities, three former employees and the connection with claims against Safa, the owner of Privinvest, and several Mozambique officials. In addition, several of ProIndicus loan syndicate brought claims against Credit Suisse entities seeking a declaration that Credit Suisse is liable to compensate them for from the alleged loss. ProIndicus syndicate referred to below, resolved all claims involving Credit Suisse In February 2022, Privinvest and Iskandar Safa brought a defamation claim in a Lebanese court against CSSEL and Credit Suisse Group AG and in November 2022, a entities in entities. In November 2023, UBS Group AG and Iskandar Safa entered into an agreement to settle 8. Cross-border private banking matters Credit Suisse by regulatory Credit Suisse’s historical private banking Credit continuing to cooperate with the authorities. 9. ETN-related litigation XIV litigation: Since March purchasers of VelocityShares Futures Index complaint, naming Sections 9(a)(4), 9(f), 10(b) and 20(a) of the US 11 and a decline in the value of XIV ETNs in February 2018. against the defendants. order affirming in part and vacating in part the with prejudice. motion to March certification decision to In May 2023, plaintiffs filed the motion to certify two of the three alleged classes, without prejudice, and denied defendants’ motion for reconsideration on the certification of the third alleged class. DGAZ litigation: In January 2022, Credit Suisse behalf of S&P GSCI Natural Gas Index ER due February 9, 2032 (DGAZ ETNs). The complaint 10(b) of the US Securities Exchange Act of 1934 and Rule for losses further issuances of granted Credit Suisse In February 2024, the Second Circuit affirmed the district court’s 10. Bulgarian former clients matter Credit Suisse AG has been the laundered funds through Credit Suisse AG AG and and intends 2022. In inadequacies in its anti-money laundering framework and ordered 2 m. In addition, the court seized certain client assets in 12 m and ordered Credit Suisse AG to in the 19 m. In Court of Appeals. 11. SCFF Credit enforcement regulatory and the matter and has commissioned a report from In February 2023, FINMA announced with the SCFF matter. In its order, FINMA reported that Credit Suisse had seriously breached laws in that matter, particularly to strengthen regulator (approximately 500 ) business Board level, in of approximately 600 Separate from against former managers of Credit Suisse. In supervisory requirements in response to inquiries from FINMA’s The Attorney General of the Canton of Zurich has initiated a criminal procedure in connection with the SCFF matter and several fund investors have joined the procedure as interested parties. In such procedure, while certain former and active Credit Suisse procedure. Certain civil actions have directors in and other fiduciary duties. 12. Archegos Credit actions relating (assisted by Trading COMCO, the cooperating with the authorities in these matters. In relationship with New York Branch entered into an Order to Cease and Desist with the Board of Governors of the Federal Reserve System. Under the 269 m and remedial management, as well as enhancements to board oversight CSI and CSSEL entered into a settlement agreement with the PRA providing for the resolution of the PRA’s investigation, following which the 87 m on CSI of various of the PRA’s Fundamental Rules. FINMA also entered a decree dated 14 July 2023 announcing the conclusion of its enforcement proceeding, finding that Credit Suisse had ordering remedial measures AG. These include throughout provide enforcement proceedings against a former Credit Suisse Civil actions officers and directors, including claims for breaches of fiduciary 13. Credit Suisse financial disclosures Credit complaints pending in the 1 regarding: (i) customer outflows in late 2022; (ii) the adequacy of Credit Suisse’s financial reporting controls; and (iii) the adequacy of merger with remains pending. One additional should be consolidated with the earlier actions. Credit connection with Credit Suisse’s authorities in these matters. 14. Merger-related litigation Certain Credit Suisse complaints pending fiduciary duty under Swiss law and civil defendants’ motions to acceptance defendants served complaints, breaches of fiduciary duty Group AG’s merger with UBS Group AG, causing losses to shareholders and AT1 noteholders. The motion to dismiss the first appropriate forum for litigation.

Other financial and non-finan_2

Other financial and non-financial liabilities	12 Months Ended
	Dec. 31, 2023
Other Financial And Non Financial Liabilities [Line Items]
Other Financial And Non Financial Liabilities Explanatory	Note 19 a) Other financial liabilities measured at amortized USD m 31.12.23 31.12.22 Other accrued expenses 3,270 1,760 Accrued interest expenses 6,692 1,949 Settlement and clearing accounts 1,519 1,075 Lease liabilities 5,502 3,334 Other 3,868 1,457 Total other financial liabilities measured at amortized cost 20,851 9,575 of which: Credit Suisse 1 8,386 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. b) Other financial liabilities designated at fair value USD m 31.12.23 31.12.22 Financial liabilities related to unit-linked investment contracts 15,992 13,221 Securities financing transactions 7,416 15,333 Over-the-counter debt instruments and other 6,076 1,684 Total other financial liabilities designated at fair value 29,484 30,237 of which: Credit Suisse 1 5,114 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. c) Other non-financial liabilities USD m 31.12.23 31.12.22 Compensation-related liabilities 9,746 6,822 of which: Deferred Contingent Capital Plan 1,709 1,614 of which: financial advisor compensation plans 1,483 1,463 of which: other compensation plans 4,723 2,680 of which: net defined benefit liability 796 469 of which: other compensation-related liabilities 1 1,035 596 Current tax liabilities 1,460 1,071 Deferred tax liabilities 325 236 VAT, 1,120 592 Deferred income 635 235 Other 802 84 Total other non-financial liabilities 14,089 9,040 of which: Credit Suisse 2 4,672 1

Expected credit loss measuremen

Expected credit loss measurement	12 Months Ended
	Dec. 31, 2023
Disclosure Of Provision Matrix [Line Items]
Disclosure Of Financial Assets Explanatory	Additional information Note 20 a) Expected credit losses in the period Total net credit loss 1,037 m in 2023, 593 m related and 2 445 m related positions. Expected credit loss (ECL) expenses of USD 593 m for performing loans were initial recognition of ECL impaired net 445 m, of which 325 m was within 120 m was within the credit-impaired › Refer to Note 20b for more information regarding changes to ECL adjustments and to Note 20c for more information Credit loss expense / (release) Performing positions Credit-impaired positions USD m Stages 1 and 2 Stage 3 Purchased Total For the year ended 31.12.23 Global Wealth Management 108 27 13 147 Personal & Corporate Banking 290 183 27 501 Asset Management 1 (1) 0 0 Investment Bank 110 78 2 190 Non-core and Legacy 78 91 25 193 Group Items 1 5 0 0 6 Total 593 378 67 1,037 For the year ended 31.12.22 Global Wealth Management (5) 5 0 Personal & Corporate Banking 27 12 39 Asset Management 0 0 0 Investment Bank 6 (18) (12) Non-core and Legacy 0 2 2 Group Items 1 1 0 1 Total 29 0 29 For the year ended 31.12.21 Global Wealth Management (28) (1) (29) Personal & Corporate Banking (62) (24) (86) Asset Management 0 1 1 Investment Bank (34) 0 (34) Non-core and Legacy 0 0 Group Items 1 0 0 0 Total (123) (25) (148) 1 Starting with the third quarter of 2023, Non-core and Legacy became a separate reportable segment and Group Functions has been renamed Group Items. Prior periods have been restated to reflect these changes. b) Changes to Refer to Note 1a for applied. Governance Comprehensive scenario updates and weights, model outputs Model changes During 2023, the model review and default (LGD) and credit 22 m increase in ECL allowances. an increase 13 m in Large corporate clients 14 m increase Personal & Corporate Large corporate SME clients . Scenario and During 2023, the scenarios and related macroeconomic considering significantly changed the economic rising global positions were as for UBS’s existing business activity. Baseline : the for Consensus, Oxford that global power due from their a less optimistic Mild debt crisis scenario : The first hypothetical downside scenario is the mild debt crisis scenario. At the beginning of the second quarter of 2023 with the mild debt crisis should be rebalanced by reintroducing assumptions solvency and liquidity concerns cause a global economy Stagflationary geopolitical crisis scenario : The second scenario and was updated in 2023 escalation commodity prices and further disruptions of supply chains and raises the specter of are forced assumptions in the scenario had a substantive impact on model-based ECL allowances Switzerland and the mortgages. Refer Asset price : The upside tensions across monetary lead to significantly. The table below details the key assumptions for the four scenarios applied Scenario weights and post-model adjustments The scenario weights did not change during 2023, but the replace one of the two severe downside scenarios with a mild 2023, was introduced in the 15 %, to balance a somewhat the stagflationary 25 %, 60 % and 0 %, respectively. The weights are shown in the table below. However, unquantifiable risks continue to be relevant, as the the world economy from relates supportable their implications for credit risk portfolios, cannot comprehensively reflect such extraordinary events, such as a pandemic or a gauge these management continued to also apply post-model adjustments. Total 1,115 m adjustments of USD 326 m (31 December 2022: 131 m). Overlays unchanged, including events and to align model outputs for Credit Suisse with those Economic scenarios and weights applied Assigned weights in % ECL scenario 31.12.23 31.12.22 Asset price inflation 0.0 0.0 Baseline 60.0 60.0 Mild debt crisis 15.0 0.0 Stagflationary geopolitical crisis 25.0 25.0 Global crisis 0.0 15.0 Scenario assumptions One year Three years cumulative 31.12.23 Asset price inflation Baseline Mild debt crisis Stagflationary geopolitical crisis Asset price inflation Baseline Mild debt crisis Stagflationary geopolitical crisis Real GDP growth (% change) United States 4.0 0.1 (1.6) (4.8) 9.1 4.4 0.6 (4.4) Eurozone 3.0 0.5 (1.7) (5.6) 6.2 2.9 (0.1) (5.7) Switzerland 3.0 1.4 (1.2) (4.8) 6.6 4.4 0.3 (4.9) Consumer price index (% change) United States 2.5 2.3 (0.1) 10.0 8.1 7.1 2.3 15.8 Eurozone 2.3 2.0 (0.2) 9.6 7.4 6.1 1.8 14.8 Switzerland 2.1 1.5 (0.4) 5.8 6.2 4.3 0.8 10.7 Unemployment rate (end-of-period level, %) United States 3.0 4.4 6.3 9.2 3.0 4.4 7.7 11.8 Eurozone 6.0 6.9 8.2 10.6 6.0 6.8 9.0 11.8 Switzerland 1.6 2.3 2.9 4.1 1.5 2.3 3.8 5.0 Fixed income: 10-year government bonds (change in yields, basis points) USD 13 (82) (215) 270 37 (78) (155) 245 EUR 20 (90) (185) 225 58 (78) (140) 195 CHF 25 (41) (73) 195 63 (34) (28) 180 Equity indices (% change) S&P 500 20.0 15.3 (26.6) (51.5) 51.7 28.1 (12.2) (45.6) EuroStoxx 50 20.0 12.0 (26.4) (51.6) 46.6 22.9 (16.6) (47.2) SPI 15.0 4.6 (24.5) (51.6) 39.2 15.9 (11.2) (47.2) Swiss real estate (% change) Single-Family Homes 6.6 (1.5) (4.4) (18.5) 14.0 0.8 (3.0) (28.6) Other real estate (% change) United States (S&P / Case–Shiller) 8.1 0.6 (8.6) (20.0) 19.7 5.8 (5.2) (30.2) Eurozone (House Price Index) 7.0 0.6 (5.9) (8.4) 15.4 6.4 (5.2) (12.9) Scenario assumptions One year Three years cumulative 31.12.22 Asset price inflation Baseline Stagflationary geopolitical crisis Global crisis Asset price inflation Baseline Stagflationary geopolitical crisis Global crisis Real GDP growth (% change) United States 4.0 (0.3) (4.8) (6.4) 9.1 3.2 (4.4) (1.8) Eurozone 3.0 0.6 (5.6) (8.5) 6.2 2.5 (5.7) (8.3) Switzerland 3.0 0.7 (4.8) (6.7) 6.6 3.5 (4.9) (3.7) Consumer price index (% change) United States 2.5 2.6 10.0 (0.5) 8.1 6.5 15.8 1.2 Eurozone 2.3 5.0 9.6 (0.7) 7.4 9.6 14.8 (0.7) Switzerland 2.1 1.6 5.8 (1.8) 6.2 3.9 10.7 (1.6) Unemployment rate (end-of-period level, %) United States 3.0 3.9 9.2 10.0 3.0 5.3 11.8 9.4 Eurozone 6.0 7.0 10.9 11.9 6.0 7.1 12.2 13.0 Switzerland 1.7 2.3 4.3 4.4 1.5 2.6 5.1 4.9 Fixed income: 10-year government bonds (change in yields, basis points) USD 25 (6) 235 (326) 70 (13) 205 (291) EUR 20 48 250 (271) 58 45 220 (247) CHF 25 46 220 (210) 63 57 205 (160) Equity indices (% change) S&P 500 20.0 7.4 (51.5) (50.0) 51.7 22.8 (45.6) (27.9) EuroStoxx 50 17.0 17.2 (51.6) (50.0) 42.9 29.2 (47.2) (39.3) SPI 14.0 5.6 (51.6) (46.0) 37.9 19.3 (47.2) (32.9) Swiss real estate (% change) Single-Family Homes 6.6 1.1 (16.7) (19.9) 14.0 2.3 (32.9) (23.9) Other real estate (% change) United States (S&P / Case–Shiller) 7.8 (4.5) (12.8) (19.3) 19.1 (0.6) (35.8) (32.7) Eurozone (House Price Index) 7.0 (2.7) (8.4) (8.9) 15.4 2.0 (14.7) (17.5) c) Development of ECL allowances and provisions The ECL allowances and provisions recognized – the effect of selecting and updating forward-looking scenarios – origination of new instruments during the period; – the effect of for the remaining lifetime decreases (all other factors remaining – derecognition of instruments in the period; – change in individual asset quality of instruments; – movements between stages 1 and 2; – movements from stages 1 and 2 to stage 3 (credit-impaired status) to 100% (or vice versa); – changes in models or updates to model parameters; – write-off; and – foreign exchange translations for assets denominated in The instruments and credit lines within the scope of ECL requirements between the beginning and the end of to the factors listed above. Development of ECL allowances and USD m Total Stage 1 Stage 2 Stage 3 PCI Balance as of 31 December 2022 (1,091) (259) (267) (564) 0 Acquisition of Credit Suisse AG portfolios (541) (541) 0 0 0 Net movement from new and derecognized transactions 1 14 (2) 9 7 0 of which: Private clients with mortgages (4) (7) 3 0 0 of which: Real estate financing 1 (2) 3 0 0 of which: Large corporate clients 18 8 3 7 0 of which: SME clients (2) (2) 0 0 0 of which: Other 1 1 0 0 0 (1) (1) 0 0 0 0 0 0 0 0 Remeasurements with stage transfers 2 (507) 42 (149) (400) 0 of which: Private clients with mortgages (12) 2 (3) (12) 0 of which: Real estate financing (35) 8 (27) (16) 0 of which: Large corporate clients (223) 17 (21) (220) 0 of which: SME clients (167) 6 (59) (115) 0 of which: Other (69) 8 (39) (38) 0 1 0 0 0 0 1 2 (1) 0 0 Remeasurements without stage transfers 3 17 58 12 14 (67) of which: Private clients with mortgages 3 1 16 (3) (11) of which: Real estate financing (1) 5 3 (1) (9) of which: Large corporate clients (42) (18) (1) (8) (16) of which: SME clients 65 31 1 44 (11) of which: Other (7) 39 (8) (18) (20) (37) 0 (15) 0 (22) (7) 1 0 (8) 0 Model changes 4 (22) (14) (8) 0 0 Movements with profit or loss impact 5 (1,037) (457) (136) (378) (67) Movements without profit or loss impact (write-off, FX and other) 6 (132) 17 (13) (50) (86) Balance as of 31 December 2023 (2,261) (700) (416) (993) (153) 1 Represents the derecognition of loans provisions related to changes in model inputs or assumptions, including changes in forward-looking macroeconomic conditions, changes in the exposure 4 Represents the change in the allowances and provisions related to changes in and methodology changes. uncollectible or forgiven and movements in foreign exchange rates. Movements USD 1,037 m: – Acquisition of Credit Suisse AG portfolios: Expected credit 541 m for performing attributable to the initial recognition Credit Suisse – Net movement from 2 m and stage of 9 m: releases lending portfolios. – Remeasurements with stage 149 m expenses in real acquisition. – Model changes : refer to Note 20b for more information. Movements without profit or loss impact : Stages 1 and 2 allowances decreased by USD 4 m, almost entirely driven by FX. Stage 3 and PCI 136 m, driven by FX 229 m, partly offset by net write-offs of USD 93 m. Development of ECL allowances and USD m Total Stage 1 Stage 2 Stage 3 Balance as of 31 December 2021 (1,165) (282) (220) (662) Net movement from new and derecognized transactions 1 (7) (21) 16 (2) of which: Private clients with mortgages (6) (6) 0 0 of which: Real estate financing (3) (5) 2 0 of which: Large corporate clients 8 (1) 11 (2) of which: SME clients (1) (1) 0 0 of which: Other (6) (8) 3 0 0 (2) 2 0 0 0 0 0 Remeasurements with stage transfers 2 (65) 20 (39) (46) of which: Private clients with mortgages (10) 3 (12) 0 of which: Real estate financing 7 (1) 8 0 of which: Large corporate clients (33) 16 (28) (21) of which: SME clients (23) 2 (2) (22) of which: Other (6) 1 (4) (3) 0 0 0 0 1 2 (1) 0 Remeasurements without stage transfers 3 13 (8) (27) 48 of which: Private clients with mortgages (12) 5 (18) 1 of which: Real estate financing 13 3 10 0 of which: Large corporate clients 32 (11) 2 41 of which: SME clients (6) (10) (9) 14 of which: Other (15) 5 (12) (8) (8) 0 (8) 0 (3) 3 (1) (6) Model changes 4 30 29 1 0 Movements with profit or loss impact 5 (29) 20 (49) 0 Movements without profit or loss impact (write-off, FX and other) 6 104 3 1 99 Balance as of 31 December 2022 (1,091) (259) (267) (564) 1 Represents the derecognition of loans or facilities on related to 4 Represents the change in the allowances and provisions related to changes in models and methodologies. and methodology changes. uncollectible or forgiven and movements in foreign exchange rates. As explained in Note 1a, the assessment of a significant increase in credit risk (an and quantitative primary assessment considers changes consideration counterparties past due. ECL stage 2 (“significant deterioration USD m Stage 2 of which: PD layer of which: watch list of which: ≥30 days past due On- and off-balance sheet (416) (221) (123) (71) of which: Private clients with mortgages (97) (69) (5) (22) of which: Real estate financing (35) (23) (2) (10) of which: Large corporate clients (133) (54) (77) (2) of which: SME clients (60) (27) (24) (10) of which: Lombard (11) 0 (11) 0 of which: Financial intermediaries and hedge funds (5) (4) 0 (1) of which: Loans to financial advisors (1) 0 0 (1) of which: Credit cards (13) 0 0 (13) of which: Consumer financing (19) (9) 0 (11) of which: Commodity trade finance (1) 0 (1) 0 of which: Other (40) (36) (4) (1) As per deterioration of credit risk” for Credit Suisse exposures, and accordingly, and provisions for performing loans at acquisition date. Credit Suisse exposures were d) Maximum exposure to credit risk The requirements financial instruments. The maximum exposure sheet subject to credit risk collateral is presented at fair enhancements, capped at section of this respects from the requirements of IFRS Accounting Standards. Maximum exposure to credit risk 31.12.23 Collateral 1,2 Credit enhancements 1 Exposure to credit risk after collateral and credit enhancements USD bn Maximum exposure to credit risk Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral 3 Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at amortized cost on the balance sheet Cash and balances at central banks 314.1 314.1 Amounts due from banks 4 21.2 0.0 0.2 0.2 0.3 20.5 Receivables from securities financing transactions measured at amortized cost 99.0 0.0 95.6 2.8 0.7 Cash collateral receivables on derivative instruments 5,6 50.1 32.9 17.2 Loans and advances to customers 639.8 40.2 131.9 372.9 38.9 0.0 11.9 44.1 Other financial assets measured at amortized cost 65.5 0.1 0.8 0.1 5.7 58.8 Total financial assets measured at amortized cost 1,189.8 40.4 228.5 373.0 47.5 32.9 0.0 12.1 455.4 Financial assets measured at fair value through other comprehensive income – debt 2.2 2.2 Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL 1,192.0 40.4 228.5 373.0 47.5 32.9 0.0 12.1 457.6 of which: Credit Suisse 7 443.4 12.7 51.6 150.2 18.4 10.1 0.0 9.3 191.1 Guarantees 8 46.1 2.9 21.4 0.3 3.4 0.1 4.6 13.3 Irrevocable loan commitments 91.5 0.5 3.2 2.2 17.1 0.4 5.9 62.3 Forward starting reverse repurchase and securities borrowing agreements 18.4 18.4 0.0 Committed unconditionally revocable credit lines 163.2 20.3 58.5 17.6 6.2 4.4 56.2 Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL 319.2 23.7 101.6 20.1 26.6 0.0 0.5 14.8 131.8 of which: Credit Suisse 7 186.9 21.4 60.3 11.1 10.9 0.0 0.5 11.3 71.5 31.12.22 Collateral 1,2 Credit enhancements 1 Exposure to credit risk after collateral and credit enhancements USD bn Maximum exposure to credit risk Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral 3 Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at amortized cost on the balance sheet Cash and balances at central banks 169.4 169.4 Amounts due from banks 4 14.8 0.0 0.1 14.7 Receivables from securities financing transactions measured at amortized cost 67.8 0.0 64.5 2.4 0.9 Cash collateral receivables on derivative instruments 5,6 35.0 22.9 12.1 Loans and advances to customers 387.2 33.6 115.9 197.8 19.6 3.0 17.3 Other financial assets measured at amortized cost 53.3 0.1 0.5 0.0 1.3 51.3 Total financial assets measured at amortized cost 727.6 33.7 181.0 197.9 23.4 22.9 0.0 3.0 265.8 Financial assets measured at fair value through other comprehensive income – debt 2.2 2.2 Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL 729.8 33.7 181.0 197.9 23.4 22.9 0.0 3.0 268.0 Guarantees 8 22.1 1.2 9.3 0.1 2.0 1.8 7.7 Irrevocable loan commitments 39.9 0.2 3.1 1.3 6.5 0.1 1.0 27.8 Forward starting reverse repurchase and securities borrowing agreements 3.8 3.8 0.0 Committed unconditionally revocable credit lines 41.4 0.2 8.2 6.0 6.2 0.5 20.2 Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL 107.2 1.6 24.4 7.5 14.7 0.0 0.1 3.3 55.7 1 Of which: USD 3,824 m for 31 December 2023 1,372 m) relates to total credit-impaired 237 m for 31 December 2023 2022: USD 113 m) to total off-balance sheet financial instruments and instruments, real estate and other funded and unfunded elements, the collateral is first allocated to the funded element. Credit Suisse applies a risk-based approach that generally prioritizes real estate collateral and prioritizes other collateral according to its liquidity profile. In the case of loan facilities with funded and or capital commitments from fund partners, leasing credit risk associated with these balances may be borne by those clients. these margin balances balance sheet. Refer to Note 22 for more information. certain overnight repurchase arrangement, UBS guarantees security interest in the cash or high-quality securities collateral that the clients place with the clearing house; therefore, e) Financial assets subject to credit risk by rating category The table below shows rating system and year-end stage classification. Under IFRS 9, the probability of default of individual counterparties, allowances. › Refer to the “Risk management and control” section of this Financial assets subject to credit risk by rating USD m 31.12.23 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total gross carrying amount ECL allowances Net carrying amount (maximum exposure to credit risk) Financial assets measured at amortized cost Cash and balances at central banks 251,462 61,936 627 0 43 128 314,197 (48) 314,148 of which: stage 1 251,462 61,936 627 0 0 0 314,025 0 314,025 of which: stage 2 0 0 0 0 43 0 43 (26) 18 of which: PCI 0 0 0 0 0 128 128 (22) 106 Amounts due from banks 1,081 15,454 2,215 1,589 792 43 21,174 (12) 21,161 of which: stage 1 1,081 15,453 2,210 1,589 780 0 21,113 (6) 21,107 of which: stage 2 0 0 5 0 12 0 18 (1) 17 of which: PCI 0 0 0 0 0 43 43 (5) 38 Receivables from securities financing transactions 45,838 30,171 6,397 15,544 1,091 0 99,041 (2) 99,039 of which: stage 1 45,838 30,171 6,397 15,544 1,091 0 99,041 (2) 99,039 Cash collateral receivables on derivative instruments 8,009 30,334 6,425 5,117 198 0 50,082 0 50,082 of which: stage 1 8,009 30,334 6,425 5,117 198 0 50,082 0 50,082 Loans and advances to customers 6,428 288,117 180,889 119,191 41,557 5,360 641,542 (1,698) 639,844 of which: stage 1 6,428 286,683 178,059 109,996 30,276 0 611,443 (423) 611,019 of which: stage 2 0 1,428 2,829 9,171 11,269 0 24,697 (289) 24,408 of which: stage 3 0 0 0 0 0 3,731 3,731 (862) 2,869 of which: PCI 0 6 0 24 12 1,629 1,671 (123) 1,548 Other financial assets measured at amortized cost 25,755 25,875 2,875 9,662 1,163 318 65,648 (151) 65,498 of which: stage 1 25,755 25,788 2,854 9,113 841 1 64,352 (41) 64,311 of which: stage 2 0 87 21 548 321 0 978 (10) 968 of which: stage 3 0 0 0 0 0 253 253 (94) 158 of which: PCI 0 0 0 0 1 64 66 (5) 61 Total financial assets measured at amortized cost 338,572 451,886 199,428 151,103 44,844 5,849 1,191,683 (1,911) 1,189,773 On-balance sheet financial instruments Financial assets measured at FVOCI – debt instruments 1,222 850 0 161 0 0 2,233 0 2,233 Total on-balance sheet financial instruments 339,794 452,736 199,428 151,264 44,844 5,849 1,193,916 (1,911) 1,192,006 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and Off-balance sheet positions subject to expected USD m 31.12.23 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total carrying amount (maximum exposure to credit risk) ECL provision Off-balance sheet financial instruments Guarantees 17,805 10,961 9,421 5,916 1,882 207 46,191 (73) of which: stage 1 17,805 10,922 9,310 5,054 1,398 0 44,487 (28) of which: stage 2 0 39 111 861 484 0 1,495 (22) of which: stage 3 0 0 0 0 0 151 151 (23) of which: PCI 0 0 0 1 1 56 58 0 Irrevocable loan commitments 1,722 31,936 24,050 19,661 14,006 266 91,643 (178) of which: stage 1 1,722 31,936 23,989 19,079 10,354 0 87,080 (117) of which: stage 2 0 0 62 583 3,652 0 4,297 (51) of which: stage 3 0 0 0 0 0 218 218 (14) of which: PCI 0 0 0 0 0 48 48 4 Forward starting reverse repurchase and securities borrowing agreements 10,152 2 84 8,206 0 0 18,444 0 Total off-balance sheet financial instruments 29,679 42,899 33,554 33,783 15,888 473 156,278 (251) Credit lines Committed unconditionally revocable credit lines 2,659 108,395 28,669 17,739 5,648 146 163,256 (95) of which: stage 1 2,659 107,992 28,188 16,921 4,696 0 160,456 (78) of which: stage 2 0 403 481 818 952 0 2,654 (17) of which: stage 3 0 0 0 0 0 146 146 0 Irrevocable committed prolongation of existing loans 4 1,803 1,045 1,251 501 4 4,608 (4) of which: stage 1 4 1,803 1,045 1,249 493 0 4,593 (4) of which: stage 2 0 0 0 2 9 0 11 0 of which: stage 3 0 0 0 0 0 4 4 0 Total credit lines 2,663 110,197 29,714 18,990 6,149 150 167,864 (99) 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and Financial assets subject to credit risk by rating USD m 31.12.22 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total gross carrying amount ECL allowances Net carrying amount (maximum exposure to credit risk) Financial assets measured at amortized cost Cash and balances at central banks 168,525 877 0 0 56 0 169,457 (12) 169,445 of which: stage 1 168,525 877 0 0 0 0 169,402 0 169,402 of which: stage 2 0 0 0 0 56 0 56 (12) 44 Amounts due from banks 862 12,257 860 440 379 0 14,798 (6) 14,792 of which: stage 1 862 12,257 860 440 378 0 14,797 (5) 14,792 of which: stage 2 0 0 0 0 1 0 1 (1) 1 of which: stage 3 0 0 0 0 0 0 0 0 0 Receivables from securities financing transactions measured at amortized cost 27,158 15,860 8,870 15,207 721 0 67,816 (2) 67,814 of which: stage 1 27,158 15,860 8,870 15,207 721 0 67,816 (2) 67,814 Cash collateral receivables on derivative instruments 10,613 12,977 7,138 4,157 147 0 35,033 0 35,032 of which: stage 1 10,613 12,977 7,138 4,157 147 0 35,033 0 35,032 Loans and advances to customers 6,491 214,473 68,356 74,732 21,939 2,012 388,003 (783) 387,220 of which: stage 1 6,491 212,980 66,114 68,034 16,605 0 370,224 (129) 370,095 of which: stage 2 0 1,493 2,242 6,698 5,334 0 15,767 (180) 15,587 of which: stage 3 0 0 0 0 0 2,012 2,012 (474) 1,538 Other financial assets measured at amortized cost 29,011 16,632 447 6,600 450 210 53,350 (86) 53,264 of which: stage 1 29,011 16,630 427 6,317 336 0 52,721 (17) 52,704 of which: stage 2 0 2 20 283 114 0 419 (6) 413 of which: stage 3 0 0 0 0 0 210 210 (63) 147 Total financial assets measured at amortized cost 242,660 273,076 85,671 101,136 23,693 2,222 728,457 (889) 727,568 On-balance sheet financial instruments Financial assets measured at FVOCI – debt instruments 1,307 840 0 92 0 0 2,239 0 2,239 Total on-balance sheet financial instruments 243,966 273,916 85,671 101,228 23,693 2,222 730,696 (889) 729,807 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and Off-balance sheet positions subject to expected USD m 31.12.22 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total off- balance sheet exposure (maximum exposure to credit risk) ECL provisions Off-balance sheet financial instruments Guarantees 7,252 5,961 4,772 3,049 1,025 108 22,167 (48) of which: stage 1 7,252 5,917 3,812 2,229 596 0 19,805 (13) of which: stage 2 0 44 960 821 429 0 2,254 (9) of which: stage 3 0 0 0 0 0 108 108 (26) Irrevocable loan commitments 1,770 14,912 6,986 10,097 6,107 124 39,996 (111) of which: stage 1 1,770 14,789 6,818 9,625 4,529 0 37,531 (59) of which: stage 2 0 123 168 472 1,578 0 2,341 (52) of which: stage 3 0 0 0 0 0 124 124 0 Forward starting reverse repurchase and securities borrowing agreements 2,781 2 11 1,007 0 0 3,801 0 Total off-balance sheet financial instruments 11,803 20,874 11,769 14,153 7,132 233 65,964 (159) Credit lines Committed unconditionally revocable credit lines 2,288 15,918 9,247 10,162 3,739 36 41,390 (40) of which: stage 1 2,288 15,213 8,960 9,631 3,429 0 39,521 (32) of which: stage 2 0 705 287 531 310 0 1,833 (8) of which: stage 3 0 0 0 0 0 36 36 0 Irrevocable committed prolongation of existing loans 7 1,939 1,489 868 392 2 4,696 (2) of which: stage 1 7 1,938 1,411 864 380 0 4,600 (2) of which: stage 2 0 1 78 4 11 0 94 0 of which: stage 3 0 0 0 0 0 2 2 0 Total credit lines 2,295 17,857 10,736 11,030 4,131 37 46,086 (42) 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and f) Sensitivity information As outlined in Note 1a, ECL estimates involve significant uncertainties ECL models The models applied to determine point-in-time PD and LGD rely on market and statistical data, which has been found to each of the ECL reporting segments to such factors are summarized Sustainability and climate risk Sustainability exposure to physical risks in locations likely to be impacted in credit worthiness, which in turn would have an impact While currently does not use a specific sustainability and climate risk scenario in addition to the typically four general economic scenarios significance of model risks and challenges in calibration Instead, transition risk is deemed to a downward revision of the counterparty individual contribution to ECLs. At the climate risk may affect the financial institutions. Initial England) and complemented by internally derived climate pathway scenarios. Such analysis undertaken during 2022 reassessed during transition risks, mainly as there are no material risk concentrations in high-risk sectors. The analysis of the corporate loan book has also shown that a time horizon that exceeds in most cases the contractual lifetime of the underlying on regulatory developments, this given the long lead times for investments in upgrading housing As a result of the aforementioned factors, it was assessed that the magnitude of any impact of sustainability and climate risk on adjustment was made in this regard. › Refer to “Sustainability and climate risk” in › Refer to “Our focus on sustainability and climate” › Refer to “UBS AG consolidated supplemental disclosures loan book Forward-looking scenarios Depending on the directions under low growth and falling key risk drivers of a given credit portfolio. As forecasting of individual parameters macroeconomy. compensatory effects in other macroeconomic unchanged. Potential effect on stage 1 and stage 2 positions USD m 100% Baseline 100% Stagflationary geopolitical crisis 100% Mild debt crisis Weighted average Change in key parameters Fixed income: Government bonds (absolute change) –0.50% (7) (164) (7) (21) +0.50% 8 186 10 25 +1.00% 17 396 23 59 Unemployment rate (absolute change) –1.00% (6) (144) (8) (22) –0.50% (3) (77) (4) (12) +0.50% 3 90 4 14 +1.00% 7 189 8 28 Real GDP growth (relative change) –2.00% 49 84 73 58 –1.00% 25 40 36 30 +1.00% (20) (37) (35) (26) +2.00% (39) (71) (63) (50) House Price Index (relative change) –5.00% 17 249 25 53 –2.50% 8 120 12 24 +2.50% (7) (105) (9) (20) +5.00% (11) (204) (19) (38) Equity (S&P500, EuroStoxx, SMI) (relative change) –10.00% 4 10 8 6 –5.00% 2 5 3 2 +5.00% (2) (5) (3) (2) +10.00% (3) (8) (5) (4) Sensitivities macroeconomic alternative changes portfolios and disclosed for each scenario. Changes to these timelines may have an effect on ECLs: will lead to different annualized lifetime PD and average LGD estimations. This is currently not deemed to be UBS, as a large horizon. Scenario weights and stage allocation Potential effect on stage 1 and stage 2 positions Actual ECL allowances and provisions, including staging (as per Note 10) Pro forma ECL allowances and provisions, assuming all positions being subject to lifetime ECL Scenarios Weighted average 100% Baseline 100% Stagflationary geopolitical crisis 100% Mild debt crisis Weighted average USD m, except where indicated Segmentation Private clients with mortgages (161) (66) (816) (81) (409) Real estate financing (88) (53) (293) (49) (196) Large corporate clients (368) (282) (533) (419) (645) SME clients (188) (158) (274) (226) (296) Ship financing (48) (46) (50) (49) (125) Consumer financing / credit cards (74) (71) (81) (75) (186) Other segments (189) (157) (269) (197) (368) Total (1,115) (832) (2,317) (1,095) (2,225) Potential effect on stage 1 and stage 2 positions Actual ECL allowances and provisions, including staging (as per Note 9) Pro forma ECL allowances and provisions, assuming all positions being subject to lifetime ECL Scenarios Weighted average 100% Baseline 100% Asset price inflation 100% Stagflationary geopolitical crisis 100% Global crisis Weighted average USD m, except where indicated Segmentation Private clients with mortgages (136) (25) (13) (523) (184) (473) Real estate financing (43) (26) (22) (176) (30) (126) Large corporate clients (136) (97) (84) (199) (174) (235) SME clients (86) (67) (66) (162) (97) (153) Other segments (125) (114) (111) (145) (153) (281) Total (526) (329) (295) (1,204) (638) (1,267) Scenario weights ECL is sensitive to changing scenario weights, in particular if narratives and parameters are the baseline scenario, highlighting the non-linearity of credit As shown 832 m (31 2022: USD 329 m) instead 1,115 m (31 December 526 m) if baseline scenario . The weighted-average ECL therefore amounted 134 % (31 December 2022: 160 %) of the baseline value. The effects of weighting each of the four scenarios 100% Stage allocation and SICR The determination of the SICR trigger will have a direct effect on ECLs, as more or scenario. The allowances and provisions for stage 1 and stage 2 2,225 m, if all non-impaired positions across the portfolio with actual stage 1 and 2 allowances and provisions of USD 1,115 m as of 31 December 2023. Maturity profile The maturity into relatively short. Lending to years. Real estate lending is generally between two and three years in Switzerland, Lombard-lending features. A significant portion agreements, which drawings under such agreements with a fixed of 12 months in stage 1; (ii) for unused credit lines UBS generally applies a 12-month maturity from the reporting date, given the credit review policies, which require either continuous monitoring of key indicators and behavioral patterns for smaller positions or an annual formal review for any other limit. The ECLs for these products are sensitive to

Fair value measurement

Fair value measurement	12 Months Ended
	Dec. 31, 2023
Disclosure Of Fair Value Measurement [Line Items]
Disclosure Of Fair Value Measurement Explanatory	Note 21 a) Valuation principles All financial and non-financial fair transparency used to measure fair value may fall within different the hierarchy within which an instrument is classified in its entirety is based on the lowest level input the position’s fair value measurement: – Level 1 – quoted prices (unadjusted) in active markets – Level 2 – valuation techniques for which all significant inputs – Level 3 – valuation techniques for which significant inputs Fair values are determined using quoted the valuation including model, liquidity, credit which would nevertheless particular valuation technique fair value hierarchy. Generally, the unit of account for a financial instrument is the individual instrument, and UBS applies valuation conditions similar and offsetting risk exposures on the basis of the › Refer to Note 21d for more information b) Valuation governance UBS’s safeguards that New products and control functions. Responsibility with the business divisions. Fair divisions. Independent price verification is performed by Finance through benchmarking the business divisions’ fair estimates controls are valuation models are used to Risk Control evaluate As a result of fair value to align with independent market data › Refer to Note 21d for more information c) Fair value hierarchy The table at product types their classification within the fair value hierarchy. During liabilities that were transferred from Level 2 period were not material. 2022, following cost to fair value through profit or loss in the balance sheet), mainly 19 bn of traded 5 bn of securitized 6 bn loan with securitization collateral and USD 3 bn of revolving loan facilities, that were deemed unobservable. Further, in the fourth quarter accounting methodology enhances UBS’s assessment as of 31 December 2022 would have 1.3 bn lower Level 3 liabilities (as of of affected liabilities in Level 3 was USD 1.9 bn), with an offsetting impact to Level 2 liabilities. In addition, the levelling of USD 2.4 bn of financial assets at fair value held for trading (loans) from the Credit Suisse sub- group acquisition balance sheet date of 31 May 2.4 bn increase in Level 3 Financial assets at held 17 m offsetting effect in Level 2 assets and liabilities, respectively. Determination of fair values from quoted market 1 31.12.23 31.12.22 USD m 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 118,975 28,045 22,613 169,633 96,241 10,138 1,488 107,866 of which: Equity instruments 102,602 1,403 321 104,325 83,074 789 126 83,988 of which: Government bills / bonds 6,995 8,763 73 15,830 5,496 950 18 6,464 of which: Investment fund units 8,392 1,124 129 9,645 6,673 596 61 7,330 of which: Corporate and municipal bonds 984 12,801 1,284 15,069 976 6,363 541 7,880 of which: Loans 0 3,837 19,618 23,456 0 1,179 628 1,807 of which: Asset-backed securities 3 112 133 248 22 261 114 397 Derivative financial instruments 622 172,903 2,559 176,084 769 147,875 1,464 150,108 of which: Foreign exchange 347 78,060 253 78,659 575 84,881 2 85,458 of which: Interest rate 0 55,190 407 55,597 0 39,345 460 39,805 of which: Equity / index 0 34,174 1,299 35,473 1 21,542 653 22,195 of which: Credit 0 3,456 513 3,969 0 719 318 1,038 of which: Commodities 1 1,869 13 1,883 0 1,334 30 1,365 Brokerage receivables 0 21,037 0 21,037 0 17,576 0 17,576 Financial assets at fair value not held for trading 30,717 64,865 8,435 104,018 26,572 29,498 3,725 59,796 of which: Financial assets for unit-linked investment contracts 15,877 7 0 15,884 13,071 1 0 13,072 of which: Corporate and municipal bonds 62 16,722 215 17,000 35 14,101 230 14,366 of which: Government bills / bonds 14,306 4,801 0 19,107 13,103 3,638 0 16,741 of which: Loans 0 4,252 2,258 6,510 0 3,602 736 4,337 of which: Securities financing transactions 0 36,857 52 36,909 0 7,590 114 7,704 of which: Asset-backed securities 0 1,525 180 1,704 0 0 0 0 of which: Auction rate securities 0 0 1,208 1,208 0 0 1,326 1,326 of which: Investment fund units 367 548 678 1,592 307 566 190 1,063 of which: Equity instruments 105 38 3,097 2 3,241 57 0 792 849 Financial assets measured at fair value through other comprehensive income on Financial assets measured at fair value through other comprehensive 68 2,165 0 2,233 57 2,182 0 2,239 of which: Commercial paper and certificates of deposit 0 1,948 0 1,948 0 1,878 0 1,878 of which: Corporate and municipal bonds 68 207 0 276 57 278 0 335 Non-financial assets measured at fair value on a recurring basis Precious metals and other physical commodities 5,930 0 0 5,930 4,471 0 0 4,471 Non-financial assets measured at fair value on a non-recurring basis Other non-financial assets 3 0 0 31 31 0 0 110 110 Total assets measured at fair value 156,312 289,015 33,639 478,966 128,110 207,269 6,788 342,166 of which: Credit Suisse 4 7,015 91,133 26,455 124,603 Determination of fair values from quoted market 1 31.12.23 31.12.22 USD m 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 27,684 6,315 161 34,159 23,578 5,823 114 29,515 of which: Equity instruments 18,266 248 92 18,606 16,521 352 78 16,951 of which: Corporate and municipal bonds 28 4,981 62 5,071 36 4,643 27 4,707 of which: Government bills / bonds 8,559 905 0 9,464 5,880 706 1 6,587 of which: Investment fund units 832 118 4 954 1,141 84 3 1,229 Derivative financial instruments 771 185,815 5,595 192,181 640 152,582 1,684 154,906 of which: Foreign exchange 457 89,394 36 89,887 587 87,897 24 88,508 of which: Interest rate 0 52,673 246 52,920 0 37,429 116 37,545 of which: Equity / index 0 38,046 3,333 41,380 0 24,963 1,184 26,148 of which: Credit 0 4,081 619 4,700 0 920 279 1,199 of which: Commodities 0 1,437 21 1,458 0 1,309 52 1,361 of which: Loan commitments measured at FVTPL 0 135 1,037 1,172 0 19 24 43 Financial liabilities designated at fair value on a recurring basis Brokerage payables designated at fair value 0 42,522 0 42,522 0 45,085 0 45,085 Debt issued designated at fair value 0 113,012 15,276 128,289 0 63,111 10,527 73,638 Other financial liabilities designated at fair value 0 26,878 2,606 29,484 0 29,547 691 30,237 of which: Financial liabilities related to unit-linked investment contracts 0 15,992 0 15,992 0 13,221 0 13,221 of which: Securities financing transactions 0 7,416 0 7,416 0 15,333 0 15,333 of which: Over-the-counter debt instruments and other 0 3,471 2,606 6,076 0 993 691 1,684 Total liabilities measured at fair value 28,454 374,542 23,638 426,635 24,219 296,148 13,015 333,381 of which: Credit Suisse 4 2,355 85,859 10,305 98,519 1 Bifurcated embedded derivatives are presented on the same balance sheet lines 2 Includes a USD 0.6 bn investment in Pfandbriefbank schweizerischer Hypothekarinstitute 20 % of the entity’s voting the entity. to Note 2 for more information about the acquisition of the Credit Suisse Group. Valuation techniques UBS uses widely that are expected cash flows, relative value and option pricing Discounted future cash flows from that profiles to using an observed models. techniques and models. Relative adjustments Option referenced probability-weighted expected curve modeling formula or other mathematical techniques (e.g., binomial tree Where available, valuation techniques use may be derived other observable market data. or analogous of current market conditions and valuation approaches. Deferred day-1 profit or loss reserves USD m 2023 2022 2021 Reserve balance at the beginning of the year 422 418 269 Profit / (loss) deferred on new transactions 260 299 459 (Profit) / loss recognized in the income statement (278) (295) (308) Foreign currency translation 0 0 (2) Reserve balance at the end of the year 404 422 418 For consensus pricing services and relevant and the relationship uses internally developed models, within the industry. Assumptions and funding rates, levels of market volatility and correlation. Refer to Note Group incorporate the funding and credit characteristics Financial instruments excluding derivatives: valuation and classification in the fair value hierarchy Product Valuation and classification in the fair value hierarchy Government bills and bonds Valuation – Generally valued using prices obtained directly – Instruments valuation techniques that incorporate market Fair value hierarchy – Generally traded resulting in Corporate and municipal bonds Valuation – Generally valued using prices obtained directly adjusted for seniority, maturity and liquidity. – When techniques incorporating the credit spread of – For convertible bond model. Fair value hierarchy – Generally classified as sources. – Level 3 instruments have no suitable pricing information Traded loans and loans measured at fair value Valuation – Valued directly using available. – Where no pricing derived from or by using a recovery rates and interest rates. – Securitization lending adjustments for any bespoke estate loans are measured using a securitization Fair value hierarchy – Instruments with suitably deep and liquid pricing – Positions requiring the use of valuation techniques, or for trading depth, are classified as Level 3. Investment fund units Valuation – Predominantly exchange-traded, prices are not available, fair value may be measured Fair value hierarchy – Listed units classification, while other positions are classified – Positions for which NAVs are not available, are classified as Level 3. Asset-backed securities (ABS) Valuation – For liquid securities, the valuation process will use trade and market levels measured using discounted expected cash flows incorporating price data for instruments or indices with similar risk profiles. Fair value hierarchy – Residential mortgage-backed securities, generally fundamental data is not available, they Auction rate securities (ARS) Valuation – ARS are valued utilizing a discounted cash flow methodology. The model captures interest rate emanating investments, extension risk, or issuer redemption date. Fair value hierarchy – Granular and liquid are classified as Level 3. Equity instruments Valuation – Listed equity instruments are generally valued – Unlisted equity holdings, including private price and are position is deemed to be impaired. Fair value hierarchy – The majority of equity securities are actively traded on public stock exchanges where quoted prices are readily and regularly available, resulting – Equity securities less actively traded will be Financial assets for unit-linked investment contracts Valuation – The majority of assets are listed on exchanges Fair value hierarchy – Most assets are classified as Level 1 if actively traded – Instruments for which prices are not readily available Product Valuation and classification in the fair value hierarchy Securities financing transactions Valuation – These instruments applied is based on funding curves that are relevant Fair value hierarchy – Collateral positions are classified as Level 2. – Where the and these positions are classified as Level 3. Brokerage receivables and payables Valuation – Fair value is determined based on the value of Fair value hierarchy – Due to their on-demand nature, these receivables Financial liabilities related to unit- linked investment contracts Valuation – The fair values of investment contract liabilities are determined by reference to the fair value of the corresponding assets. Fair value hierarchy – The liabilities themselves are actively traded and are therefore classified Precious metals and other physical commodities Valuation – Physical assets are valued using the spot rate Fair value hierarchy – Generally traded resulting in classification as Level 1. Debt issued designated at fair value Valuation – The risk management and the equivalent derivatives this component are the same as the relevant Fair value hierarchy – The observability is closely aligned with the equivalent Commercial paper and certificates of deposit Valuation – Generally valued using issuer or similar issuers over the underlying currency Fair value hierarchy – Due to the classified as Level 2. Derivative instruments: valuation and classification The curves used associated with the relevant collateral arrangement for the instrument across collateralized derivatives are the cheapest eligible currency for the respective Uncollateralized and equivalent) partially collateralized (DVAs) and credit risk, UBS’s own credit › Refer to Note 11 for more information about derivative Derivative product Valuation and classification in the fair value hierarchy Interest rate contracts Valuation – Interest rate cash flows using a rate The yield curves used to estimate standard yield inputs to the models are interest rate swap rates, forward rate agreement rates, short-term interest rate futures prices, basis swap spreads and – Interest rate option contracts are valued using various market-standard option models, that include interest rate yield curves, inflation – When the maturity of an interest rate swap or option market extrapolation from the last observable point using standard assumptions observable comparable input parameter to represent Fair value hierarchy – The majority of form the inputs for yield curve models are generally – Options are generally treated as Level 2, as the validated to active-market of both standard options and more exotic – Interest rate market-observable quotes. – Exotic options observable market data are classified as Level 3. Derivative product Valuation and classification in the fair value hierarchy Credit derivative contracts Valuation – Credit credit spreads, upfront pricing points and implied recovery rates. Where a derivative credit not directly available, it may be derived from – Asset-backed underlying security form. Fair value hierarchy – Single-entity and recovery rates are reference name(s) are not actively traded and the correlation cannot be directly traded tranche instruments, these contracts – Asset-backed credit derivatives distributed across Level 2 and Level 3. Foreign exchange contracts Valuation – Open spot foreign – Forward FX contracts are valued using from standard market-based sources. – Over-the-counter models. The models used for shorter-dated options (i.e., different than those FX contracts require additional consideration – The valuation for multi-dimensional to the observed FX volatilities for all relevant Fair value hierarchy – The markets for FX spot and FX forward pricing points are both actively traded and observable and therefore such FX contracts are generally classified – A significant mostly from standard market contracts traded Equity / index contracts Valuation – Equity standard models. The key inputs funding rates (which cash flows are reflects available historical dividend data, or use of data for – Equity option contracts are valued level as correlation generated is then that reflects the appropriate funding rate for that or correlation inputs dividend, correlation or volatility data, Fair value hierarchy – As inputs a significant proportion of equity forward contracts – Equity option positions for which and observable markets are also classified as Level 2. Level 3 positions are those for which volatility, forward or correlation inputs are not observable. Commodity contracts Valuation – Commodity market forward levels on standard instruments. – Commodity option contracts are measured using market-standard option models that estimate the commodity forward inputs for the volatility of the underlying index or commodity. For commodity commodities or bespoke correlation between different commodities or Fair value hierarchy – Individual commodity market data is available. Loan commitments measured at FVTPL Valuation – Valued directly using available. – Where benchmarking products in the inputs for credit spreads, credit recovery rates Fair value hierarchy – Instruments with suitably deep and liquid pricing – Positions requiring the use of valuation techniques, or for trading depth, are classified as Level 3. d) Valuation adjustments and other items The output As a result, in estimating fair value, to reflect close-out costs, credit exposure, model-driven valuation uncertainty, benefits, trading restrictions and other factors. Deferred day-1 profit or loss reserves For new based on observable market data, the financial instrument is initially recognized at the transaction price. The transaction price may differ from the fair value obtained using initially recognized in the income statement. Deferred day-1 profit or loss Other net income from financial through profit the transaction is closed out. The accordance with IFRS, no and no significant new positions were originated between Valuation techniques and inputs used in the fair value measurement Fair value Significant unobservable input(s) 1 Range of inputs Assets Liabilities Valuation technique(s) 31.12.23 31.12.22 USD bn 31.12.23 31.12.22 31.12.23 31.12.22 low high weighted average 2 low high weighted average 2 unit 1 Financial assets and liabilities at fair value held for trading and Financial assets at fair Corporate and municipal bonds 1.5 0.8 0.1 0.0 Relative value to market comparable Bond price equivalent 5 126 99 14 112 85 points Discounted expected cash flows Discount margin 135 491 463 412 412 basis points Traded loans, loans measured at fair value, loan commitments and guarantees 22.0 1.7 0.0 0.0 Relative value to market comparable Loan price equivalent 1 120 88 30 100 97 points Discounted expected cash flows Credit spread 19 2,681 614 200 200 200 basis points Market comparable and securitization model Credit spread 162 1,849 318 145 1,350 322 basis points Option model Gap risk 0 2 0 % Auction rate securities 1.2 1.3 Discounted expected cash flows Credit spread 135 205 150 115 196 144 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 3.4 0.9 0.1 0.1 Relative value to market comparable Price Debt issued designated at fair value 4 15.3 10.5 Other financial liabilities designated at fair value 2.6 0.7 Discounted expected cash flows Funding spread 51 201 23 175 basis points Derivative financial instruments Interest rate 0.4 0.5 0.2 0.1 Option model Volatility of interest rates 45 154 75 143 basis points Volatility of inflation 1 6 % IR-to-IR correlation 4 100 % Credit 0.5 0.3 0.6 0.3 Discounted expected cash flows Credit spreads 1 2,421 9 565 basis points Credit correlation 50 66 % Credit volatility 60 60 % Bond price equivalent 2 242 3 277 points Recovery rates 14 100 % Option model Credit spreads 26 2,159 basis points Equity / index 1.3 0.7 3.3 1.2 Option model Equity dividend yields 0 17 0 20 % Volatility of equity stocks, equity and other indices 4 142 4 120 % Equity-to-FX correlation (40) 77 (29) 84 % Equity-to-equity correlation (50) 100 (25) 100 % Loan commitments measured at FVTPL 1.0 Relative value to market comparable Loan price equivalent 35 102 points 1 The ranges of significant for most non-derivative financial liabilities designated at investments. and credit-linked notes, the-counter debt instruments are presented in the respective derivative financial instruments lines in this table. Own credit Own relevant for valuation purposes by UBS’s counterparties Changes in recognized Other Retained statement statement, as the Group does not hedge changes in own Own credit is estimated using own credit adjustment (OCA) curves, which incorporate observable market data, market-observed secondary prices for UBS’s debt own credit effect of changes in decay and associated cumulative unrealized change since initial recognition. › Refer to Note 16 for more information about debt Own credit adjustments on financial liabilities Included in Other comprehensive income For the year ended USD m 31.12.23 31.12.22 31.12.21 Recognized during the period: Realized gain / (loss) 8 1 (14) Unrealized gain / (loss) (1,858) 866 60 Total gain / (loss), before tax (1,850) 867 46 USD m 31.12.23 31.12.22 31.12.21 Recognized on the balance sheet as of the end of the period: Unrealized life-to-date gain / (loss) (1,287) 556 (315) of which: debt issued designated at fair value (1,297) 453 (347) of which: other financial liabilities designated at fair value 10 103 32 Own credit 974 m attributable to Credit Suisse. Credit valuation adjustments In classified as Financial assets at inherent counterparty credit risk of that counterparty, applicable collateral or netting arrangements, break Funding valuation adjustments FVAs receivables and payables derivative cash flows from the ARR to OCA using the CVA An FVA is also applied to collateralized Debit valuation adjustments A DVA is estimated to incorporate own credit in the valuation of derivatives where an FVA is not already recognized. The DVA calculation all exposures market movements and UBS’s credit default spreads. Other valuation adjustments Instruments that are measured as to ensure consistent valuation the overall market transactions and other relevant sources and Uncertainties through the use valuations produced directly and market inputs used, these estimates, assess these uncertainties. Model reserves pricing services and other relevant sources. Other valuation adjustment reserves on the As of USD m 31.12.23 31.12.22 31.12.21 Credit valuation adjustments 1 (145) (33) (44) Funding and debit valuation adjustments (116) (46) (47) Other valuation adjustments (2,654) (839) (913) of which: liquidity (2,051) (311) (341) of which: model uncertainty (603) (529) (571) 1 Amount does not include reserves against defaulted counterparties. Credit valuation adjustments and Funding 108 m and USD 34 m respectively, attributable 1,741 m and USD 181 m, respectively. e) Level 3 instruments: valuation techniques and inputs The table below presents fair value, unobservable, and a range of values for those unobservable inputs. The range of does not estimates and assumptions, but rather the different underlying characteristics of the relevant assets and liabilities held by the Group. The ranges will therefore vary the instruments held at each balance sheet date. Furthermore, the ranges of unobservable inputs may financial institutions, reflecting the diversity of the products Significant unobservable inputs in Level 3 positions This section potential effect that between observable and unobservable inputs have not Input Description Bond price equivalent – Where market prices are similar instruments. Factors considered when selecting comparable instruments include credit quality, maturity and industry of the issuer. Fair value may be measured either by a direct price comparison or yield (either as an outright yield or as a spread – For corporate and municipal bonds, the fair value. Bonds priced or measurement date. – For credit derivatives, the bond price range converted to an equivalent yield or credit Loan price equivalent – Where market prices are observable pricing data for similar instruments. Factors considered when selecting comparable instruments include industry segment, comparison or reference issuances of a similar credit quality used to measure fair value for loans classified as Level 3. Loans priced at 0 distressed to the repaid in full. Credit spread – Valuation models for many credit derivatives is a reflection of the in relation in terms of by credit default swaps nature and direction benchmark against which the spread is calculated. A wider credit spread represents decreasing creditworthiness. The range represents a diverse set of underlyings, with upper end of the range representing greater Discount margin – The discount margin (DM) spread represents the discount rates applied to present market return required index (e.g., Secured Overnight Financing Rate the DM in isolation would result in a higher – The high schedule. This indicates that the market is pricing being captured by better-quality instruments. Funding spread – Structured financing transactions collateral for the transactions. estimate of where UBS spreads are expressed in terms of basis points, – A small proportion of structured debt instruments and non-structured fixed-rate bonds within financial liabilities designated at fair value had an exposure to funding Volatility – Volatility measures a higher number reflects a more volatile key input into instrument. The contract is a long or short position. In most cases, the fair value of an and is reduced market option prices (referred to as which represents the effect of pricing options – Volatilities of low interest rates may have significantly different implied volatilities. Recovery Rate – The projected recovery rate pricing input for corporate or sovereign credits. Reduction in recovery rates will result in lower expected cash flows into the structure upon the default of would result in significantly higher / (lower) fair value for the respective underlying cash security. The impact of a recovery rate on a credit derivative is ultimately driven by the value recoverable from collateral held after default occurs relative to the outstanding exposure at that point. Gap risk – Gap risk dates. Gap reference asset, generally related to certain financing with a significant unobservable Input Description Correlation – Correlation measures the –100% associated with a movement of the other variable in the same direction) and –100% implies that correlated direction). The effect of correlation valued, reflecting the range of different payoff Equity dividend yields – The derivation of a forward price contracts and for measuring fair forward price is based on a combination relevant funding of the share price, with yield and timing represent equity forward price. f) Level 3 instruments: sensitivity to changes in unobservable The table below summarizes of change fair value significantly, and the estimated effect thereof. The table below does not represent the estimated effect of stress Furthermore, direct the valuation uncertainty. Sensitivity data is estimated market participants, variation fair value used in valuations are not always precisely in the middle Sensitivity data Diversification would an believes that the diversification benefit is not significant to The increase in from Credit facilities that are deemed unobservable. Sensitivity of fair value measurements to changes 1 31.12.23 31.12.22 USD m Favorable changes Unfavorable changes Favorable changes Unfavorable changes Traded loans, loans measured at fair value and guarantees 635 2 (600) 2 19 (12) Securities financing transactions 30 (32) 33 (37) Auction rate securities 67 (21) 46 (46) Asset-backed securities 39 (36) 27 (27) Equity instruments 430 (413) 183 (161) Investment fund units 135 (137) 19 (21) Loan commitments measured at FVTPL 313 (343) 0 0 Interest rate derivatives, net 217 (103) 18 (12) Credit derivatives, net 140 (131) 3 (4) Foreign exchange derivatives, net 5 (4) 10 (5) Equity / index derivatives, net 521 (443) 361 (330) Other 281 (276) 20 (41) Total 2,815 (2,538) 738 (696) of which: Credit Suisse 3 2,034 (1,890) 1 Sensitivity of refinements applied in estimating valuation uncertainty across various parameters. g) Level 3 instruments: movements during the period The table recurring basis. hierarchy, hedging activity. Furthermore, those arising As noted acquired accounting methodology for testing unobservable inputs. Assets and liabilities 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 1 Net gains / losses included in compre- hensive income 2 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 twelve months ended 31 December 2023 3 Financial assets at fair value held for trading 1.5 26.2 (0.9) (0.5) 1.1 (4.5) 3.6 (5.6) 2.3 (1.1) 0.0 22.6 of which: Equity instruments 0.1 0.4 (0.1) (0.0) 0.1 (0.2) 0.0 0.0 0.2 (0.1) 0.0 0.3 of which: Corporate and municipal bonds 0.5 1.1 (0.2) (0.1) 0.6 (0.8) 0.0 0.0 0.1 (0.0) 0.0 1.3 of which: Loans 0.6 23.1 (0.7) (0.4) 0.1 (2.7) 3.6 (5.6) 2.0 (0.8) 0.0 19.6 Derivative financial instruments – assets 1.5 1.4 (0.2) (0.1) 0.0 (0.0) 1.0 (0.8) 0.3 (0.7) 0.0 2.6 of which: Interest rate 0.5 0.2 (0.0) (0.0) 0.0 0.0 0.2 (0.3) 0.1 (0.2) (0.0) 0.4 of which: Equity / index 0.7 0.5 (0.1) 0.0 0.0 0.0 0.6 (0.2) 0.1 (0.3) 0.0 1.3 of which: Credit 0.3 0.2 (0.1) (0.0) 0.0 0.0 0.1 (0.2) 0.1 (0.0) 0.0 0.5 Financial assets at fair value not held for trading 3.7 4.2 0.2 0.1 2.1 (2.2) 0.0 (0.0) 0.8 (0.3) 0.1 8.4 of which: Loans 0.7 0.8 0.3 0.3 0.6 (0.4) (0.0) (0.0) 0.4 (0.2) 0.0 2.3 of which: Auction rate securities 1.3 0.0 0.0 0.0 0.0 (0.1) 0.0 0.0 0.0 0.0 0.0 1.2 of which: Equity instruments 0.8 2.1 (0.0) (0.1) 0.5 (0.4) 0.0 (0.0) 0.1 0.0 0.1 3.1 Derivative financial instruments – liabilities 1.7 4.5 (0.4) 0.1 0.0 (0.0) 2.0 (2.0) 0.4 (0.7) 0.0 5.6 of which: Interest rate 0.1 0.2 (0.0) (0.0) 0.0 0.0 0.1 (0.1) 0.1 (0.2) 0.0 0.2 of which: Equity / index 1.2 1.7 0.2 0.6 (0.0) (0.0) 1.2 (0.9) 0.2 (0.3) 0.0 3.3 of which: Credit 0.3 0.3 0.0 0.0 0.0 0.0 0.1 (0.1) 0.1 (0.1) 0.0 0.6 of which: Loan commitments measured at FVTPL 0.0 2.0 (0.6) (0.5) 0.0 0.0 0.1 (0.5) 0.0 (0.0) 0.0 1.0 Debt issued designated at fair value 10.5 8.5 1.0 0.8 0.0 0.0 3.7 (5.1) 1.0 (4.5) 0.0 15.3 Other financial liabilities designated at fair value 0.7 2.1 (0.0) 0.0 0.0 0.0 0.2 (0.2) 0.0 (0.1) 0.0 2.6 For the twelve months ended 31 December 2022 Financial assets at fair value held for trading 2.3 (0.3) (0.3) 0.3 (1.8) 0.5 0.0 0.7 (0.3) (0.0) 1.5 of which: Investment fund units 0.0 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.1 (0.0) (0.0) 0.1 of which: Corporate and municipal bonds 0.6 (0.0) (0.0) 0.3 (0.6) 0.0 0.0 0.4 (0.0) (0.0) 0.5 of which: Loans 1.4 (0.1) (0.1) 0.0 (1.1) 0.5 0.0 0.0 (0.2) 0.0 0.6 Derivative financial instruments – assets 1.1 0.6 0.3 0.0 0.0 0.4 (0.7) 0.1 (0.0) (0.0) 1.5 of which: Interest rate 0.5 0.3 0.3 0.0 0.0 0.0 (0.2) 0.0 (0.1) (0.0) 0.5 of which: Equity / index 0.4 0.2 0.1 0.0 0.0 0.4 (0.3) 0.1 (0.0) (0.0) 0.7 of which: Credit 0.2 0.1 (0.1) 0.0 0.0 0.0 (0.2) 0.0 0.1 0.0 0.3 Financial assets at fair value not held for trading 4.2 0.1 0.1 0.7 (1.2) 0.1 (0.0) 0.2 (0.3) (0.0) 3.7 of which: Loans 0.9 (0.0) (0.0) 0.4 (0.4) 0.1 0.0 0.1 (0.3) (0.0) 0.7 of which: Auction rate securities 1.6 0.1 0.0 0.0 (0.3) 0.0 0.0 0.0 0.0 0.0 1.3 of which: Equity instruments 0.7 0.0 0.0 0.1 (0.1) 0.0 0.0 0.1 0.0 (0.0) 0.8 Derivative financial instruments – liabilities 2.2 (0.8) (0.4) 0.0 0.0 1.1 (0.9) 0.3 (0.2) (0.1) 1.7 of which: Interest rate 0.3 (0.3) (0.0) 0.0 0.0 0.1 (0.0) 0.0 (0.0) (0.0) 0.1 of which: Equity / index 1.5 (0.4) (0.3) 0.0 0.0 0.8 (0.7) 0.1 (0.2) (0.0) 1.2 of which: Credit 0.3 (0.1) (0.0) 0.0 0.0 0.1 (0.1) 0.1 (0.0) (0.0) 0.3 Debt issued designated at fair value 14.2 (2.2) (1.8) 0.0 0.0 4.7 (3.1) 0.7 (3.4) (0.3) 10.5 Other financial liabilities designated at fair value 0.8 (0.1) (0.1) 0.0 0.0 0.0 (0.1) 0.0 (0.0) (0.0) 0.7 1 Refer to Note 2 financial instruments measured at fair comprehensive income. 33.6 bn (31 December 2022: USD 6.8 bn). Total Level 3 liabilities as of 23.6 bn (31 December 2022: USD 13.0 bn). h) Maximum exposure to credit risk for financial instruments The tables below and instruments. The maximum exposure sheet subject to credit risk collateral is presented at fair enhancements, capped at section of this respects from the requirements of IFRS Accounting Standards. Maximum exposure to credit risk 31.12.23 Maximum exposure to credit risk Collateral Credit enhancements Exposure to credit risk after collateral and credit enhancements USD bn Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at fair value on the balance sheet 1 Financial assets at fair value held for trading – debt instruments 2,3 54.6 54.6 Derivative financial instruments 4 176.1 6.4 156.4 13.3 Brokerage receivables 21.0 20.5 0.5 Financial assets at fair value not held for trading – debt instruments 5 83.3 41.7 0.0 0.2 0.0 41.3 Total financial assets measured at fair value 335.0 0.0 68.6 0.0 0.0 156.6 0.0 0.0 109.8 of which: Credit Suisse 6 114.2 32.9 0.0 42.0 0.0 39.3 Guarantees 0.1 0.1 0.0 31.12.22 Maximum exposure to credit risk Collateral Credit enhancements Exposure to credit risk after collateral and credit enhancements USD bn Cash collate

Offsetting financial assets and

Offsetting financial assets and financial liabilities	12 Months Ended
	Dec. 31, 2023
Offsetting Financial Assets And Financial Liabilities [Line Items]
Disclosure Of Offsetting Of Financial Assets And Financial Liabilities Explanatory	Note 22 UBS enters into netting agreements and traded liabilities against available assets received in the to the transaction are unable to fulfill their contractual The tables below netting exposures for these financial instruments. The arrangements. Therefore, the net risk exposure. Financial assets subject to offsetting, enforceable Assets subject to netting arrangements Netting recognized on the balance sheet Netting potential not recognized on the balance sheet 3 Assets not subject to netting arrangements 4 Total assets As of 31.12.23, USD bn Gross assets before netting Netting with gross liabilities 2 Net assets recognized on the balance sheet Financial liabilities Collateral received Assets after consideration of netting potential Assets recognized on the balance sheet Total assets after consideration of netting potential Total assets recognized on the balance sheet Receivables from securities financing transactions measured at amortized cost 93.7 (12.7) 80.9 (1.5) (79.2) 0.3 18.1 18.4 99.0 Derivative financial instruments 172.4 (3.3) 169.1 (133.0) (29.8) 6.3 7.0 13.3 176.1 Cash collateral receivables on derivative instruments 1 47.3 0.0 47.3 (29.7) (3.2) 14.5 2.7 17.2 50.1 Financial assets at fair value not held for trading 129.8 (92.6) 37.2 (2.0) (35.3) 0.0 66.7 66.7 104.0 of which: reverse repurchase agreements 128.7 (92.6) 36.1 (2.0) (34.1) 0.0 0.8 0.8 36.9 Total assets 443.2 (108.6) 334.6 (166.2) (147.4) 21.0 94.6 115.6 429.2 As of 31.12.22, USD bn Receivables from securities financing transactions measured at amortized cost 60.8 (11.1) 49.6 (3.0) (46.4) 0.3 18.2 18.5 67.8 Derivative financial instruments 147.4 (2.5) 144.9 (110.9) (28.5) 5.5 5.2 10.7 150.1 Cash collateral receivables on derivative instruments 1 33.5 0.0 33.5 (20.9) (1.9) 10.6 1.5 12.1 35.0 Financial assets at fair value not held for trading 85.6 (76.8) 8.7 (1.5) (7.3) 0.0 51.0 51.0 59.8 of which: reverse repurchase agreements 84.4 (76.8) 7.6 (1.5) (6.1) 0.0 0.1 0.1 7.7 Total assets 327.2 (90.4) 236.8 (136.3) (84.1) 16.4 76.0 92.3 312.8 1 The net IAS 32 principles and exchange-traded directly to the amounts presented in the “Netting with gross from securities financing transactions “Payables from securities financing transactions measured at amortized cost” and “Other financial liabilities designated at fair value” lines the amounts of financial instruments and cash collateral presented have been capped so as not to exceed the net amount of financial assets presented on the balance sheet; i.e., over-collateralization, where is not reflected in the table. Financial liabilities subject to offsetting, enforceable Liabilities subject to netting arrangements Netting recognized on the balance sheet Netting potential not recognized on the balance sheet 3 Liabilities not subject to netting arrangements 4 Total liabilities As of 31.12.23, USD bn Gross liabilities before netting Netting with gross assets 2 Net liabilities recognized on the balance sheet Financial assets Collateral pledged Liabilities after consideration of netting potential Liabilities recognized on the balance sheet Total liabilities after consideration of netting potential Total liabilities recognized on the balance sheet Payables from securities financing transactions measured at amortized cost 25.2 (12.5) 12.6 (0.8) (11.8) 0.0 1.8 1.8 14.4 Derivative financial instruments 185.1 (3.3) 181.8 (133.0) (35.0) 13.9 10.4 24.3 192.2 Cash collateral payables on derivative instruments 1 39.8 0.0 39.7 (23.2) (3.2) 13.3 1.8 15.2 41.6 Other financial liabilities designated at fair value 102.1 (92.8) 9.3 (2.7) (4.8) 1.8 20.2 22.0 29.5 of which: repurchase agreements 100.0 (92.8) 7.2 (2.7) (4.5) 0.0 0.2 0.2 7.4 Total liabilities 352.1 (108.6) 243.5 (159.7) (54.8) 29.1 34.2 63.2 277.7 As of 31.12.22, USD bn Payables from securities financing transactions measured at amortized cost 14.1 (11.1) 3.0 (1.3) (1.8) 0.0 1.2 1.2 4.2 Derivative financial instruments 150.3 (2.5) 147.8 (110.9) (26.2) 10.7 7.1 17.8 154.9 Cash collateral payables on derivative instruments 1 34.9 0.0 34.9 (20.0) (1.9) 13.0 1.6 14.5 36.4 Other financial liabilities designated at fair value 92.5 (76.9) 15.6 (3.2) (12.4) 0.0 14.6 14.6 30.2 of which: repurchase agreements 92.1 (76.9) 15.3 (3.2) (12.1) 0.0 0.1 0.1 15.3 Total liabilities 291.7 (90.4) 201.3 (135.3) (42.3) 23.7 24.5 48.1 225.8 1 The net amount of Cash collateral payables on derivative instruments recognized on the balance sheet includes certain OTC derivatives that are net settled on a daily basis either legally or in substance under IAS 32 principles and exchange-traded derivatives that are economically settled on presented in the “Netting with gross measured at amortized financing transactions measured at amortized cost” instruments and cash collateral presented have been capped so as not to exceed the net amount of financial liabilities presented on the balance sheet; table.

Restricted financial assets

Restricted financial assets	12 Months Ended
	Dec. 31, 2023
Disclosure Restricted Financial Assets [Line Items]
Restricted Assets Disclosure [Text Block]	Note 23 This Note 23c) and financial assets that are received a) Restricted financial assets Restricted other assets that are otherwise explicitly restricted Financial liabilities against the Swiss National Bank (the from bonds. Of 7.5 bn as used 2022: approximately 3.1 bn). Existing SNB were USD 44.9 bn as of 31 0 bn). Liabilities against Swiss institutions 45.5 bn December 2023 (31 December 2022: USD 9.0 bn). Other financial assets which are generally may repurchase agreements, the cash borrowed. Other restricted financial investment contracts to back related liabilities to the policy holders and assets held in certain jurisdictions to comply with explicit minimum local asset restricted financial comply with local asset maintenance requirements, for Restricted financial assets USD m 31.12.23 31.12.22 Restricted financial assets of which: assets pledged as collateral that may be sold or repledged by counterparties Restricted financial assets of which: assets pledged as collateral that may be sold or repledged by counterparties Financial assets pledged as collateral Cash and balances at central banks 1 1,041 Financial assets at fair value held for trading 83,689 51,263 57,377 36,742 Loans and advances to customers 127,362 15,195 Financial assets at fair value not held for trading 3,099 2,110 1,509 1,220 Debt securities classified as Other financial assets measured 7,561 6,299 3,432 2,685 Total financial assets pledged as collateral 222,752 77,513 Other restricted financial assets Amounts due from banks 2,874 3,689 Financial assets at fair value held for trading 184 162 Cash collateral receivables on derivative instruments 9,539 5,155 Loans and advances to customers 275 1,127 Other financial assets measured at amortized cost 4,724 2 815 Financial assets at fair value not held for trading 18,229 14,478 Financial assets measured at fair value through other comprehensive 1,846 1,842 Other 354 44 Total other restricted financial assets 38,025 27,312 Total financial assets pledged and other restricted financial assets 3 260,777 104,825 4 114,611 1 Assets pledged to the depositor protection to secure securities trading activity through those counterparties. 2023: USD 9.8 bn; 31 December 2022: USD 5.9 bn). In 7.1 bn requirements as of 31 December 2023 (31 4.4 bn). In addition to restrictions requirements Supervisory authorities Federal subsidiaries’ ability to make distributions of capital based Supervisory subsidiaries. Non-regulated subsidiaries are generally can requirements. › Refer to the “Financial and regulatory key figures for our significant for financial information about significant regulated subsidiaries

Transferred financial assets th

Transferred financial assets that are not derecognized in their entirety	12 Months Ended
	Dec. 31, 2023
Transferred Financial Assets That Are Not Derecognized In Their Entirety [Line Items]
Disclosure Of Transfers Of Financial Assets Explanatory	b) Transferred financial assets that are not derecognized The recognition in full, as well as recognized Transferred financial assets subject to continued recognition in full USD m 31.12.23 31.12.22 Carrying amount of transferred assets Carrying amount of associated liabilities recognized on balance sheet Carrying amount of transferred assets Carrying amount of associated liabilities recognized on balance sheet Financial assets at fair value held for trading that may be sold or repledged 51,263 23,765 36,742 16,470 Financial assets at fair value not held for trading that may be sold or repledged counterparties 2,110 1,976 1,220 1,050 Debt securities classified as Other financial assets measured sold or repledged by counterparties 6,299 5,928 2,685 2,302 Total financial assets transferred 59,672 31,669 40,647 19,822 1 6,739 391 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group. Transactions sheet include securities lending with counterparties subject to UBS’s normal credit risk › Refer to Note 1a item 2e for more information about repurchase Financial assets at and received and other financial asset transfers. For 0 % 15 % transferred transferred assets. The counterparties to the associated liabilities In securities securities received nor the obligation ownership are not in another transaction, Other financial asset transfers primarily include carrying amount on a specific collateral pledged and the associated liability. Transferred financial assets that are not subject the Group’s continuing involvement were not material

Transferred financial assets _2

Transferred financial assets that are derecognized in their entirety with continuing involvement	12 Months Ended
	Dec. 31, 2023
Disclosure Transferred Financial Assets [Line Items]
Disclosure Of Continuing Involvement In Derecognised Financial Assets Explanatory	c) Transferred financial assets that are derecognized Continuing involvement in the particular transfer connection with the transfer. The fair value and carrying amount of UBS’s continuing involvement from transferred positions as of 31 December 2023 and 31 December 2022 was not material. Life-to-date losses reported in prior periods primarily relate to legacy positions in securitization vehicles that have been fully marked

Off-balance sheet assets receiv

Off-balance sheet assets received	12 Months Ended
	Dec. 31, 2023
Disclosure Off-balance Sheet Assets Received [Line Items]
Disclosure Of Off Balance Sheet Assets Received Text Block	d) Off-balance sheet assets received The table below presents assets received from third parties that can be sold or repledged and that are not recognized on the balance sheet but that are held as collateral, including Off-balance sheet assets received USD m 31.12.23 31.12.22 Fair value of assets received that can be sold or repledged of which: sold 2 Fair value of assets received that can be sold or repledged of which: sold 2 Fair value of assets received that can be sold or repledged 1 576,596 382,313 434,023 331,805 of which: Credit Suisse 3 88,068 26,697 1 Includes securities received as initial margin from its clients that UBS is required to remit to central counterparties, 2 Does not include off-balance sheet securities (31 December 29.1 bn; 31 December 2022: USD 9.9 bn) placed with central banks related to undrawn purposes for which there are no associated liabilities or contingent liabilities.

Maturity analysis of financial

Maturity analysis of financial liabilities	12 Months Ended
	Dec. 31, 2023
Measurement Categories Credit Risk And Maturity Analysis Of Financial Instruments [Line Items]
Measurement categories, credit risk and maturity analysis of financial instruments [text block]	Note 24 a) Maturity analysis of carrying amounts of assets and The table sheet includes the effect based on the earliest date on which a third party Derivative financial instruments Due within 1 month Assets held to hedge unit-linked investment contracts Financial assets at fair value not ) are Due within under unit-linked investment contracts (presented within Other financial liabilities designated at fair value ). Other financial assets Perpetual / Not applicable counterparty contracts are presented in the Perpetual / Not applicable Non-financial assets Perpetual / column. 31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Assets Total financial assets measured at amortized cost 645.9 57.7 88.3 125.6 136.8 135.5 1,189.8 Amounts due from banks 18.8 1.1 0.8 0.0 0.3 0.2 21.2 Loans and advances to customers 177.9 34.0 77.5 118.5 116.6 115.3 639.8 Other financial assets measured at amortized cost 12.3 1.8 5.2 6.3 19.8 20.0 65.5 Total financial assets measured at fair value through profit or loss 417.6 12.2 9.9 8.4 12.6 5.3 4.8 470.8 Financial assets at fair value not held for trading 50.8 12.2 9.9 8.4 12.6 5.3 4.8 104.0 Financial assets measured at fair value through other comprehensive income 0.1 1.1 1.0 0.1 0.0 0.0 2.2 Total non-financial assets 12.3 0.2 1.3 1.2 1.1 38.4 54.5 Total assets 1,075.9 71.0 99.3 135.3 150.6 142.0 43.2 1,717.2 of which: Credit Suisse 346.4 37.5 50.2 32.7 59.9 44.2 12.2 583.2 Liabilities Total financial liabilities measured at amortized cost 748.7 97.0 115.1 49.8 88.7 66.4 12.0 1,177.6 Customer deposits 618.2 76.5 72.7 15.9 8.4 0.3 792.0 Debt issued measured at amortized cost 10.1 14.7 34.3 31.1 73.2 62.5 12.0 237.8 of which: non-subordinated 7.6 14.7 31.8 30.8 72.8 62.5 220.2 of which: subordinated 2.5 2.5 0.3 0.3 0.0 12.0 17.6 Total financial liabilities measured at fair value through profit or loss 1 308.3 14.0 30.0 31.2 18.0 25.2 426.6 Debt issued designated at fair value 17.0 13.8 28.8 28.8 15.9 24.0 128.3 Total non-financial liabilities 17.8 4.5 0.2 0.3 0.7 0.4 2.5 26.3 Total liabilities 1,074.7 115.6 145.3 81.3 107.4 91.9 14.5 1,630.6 of which: Credit Suisse 328.0 34.3 40.6 19.9 27.3 25.2 0.3 475.7 Guarantees, loan commitments and forward starting transactions 2 Irrevocable loan commitments 90.7 0.5 0.4 0.0 0.0 91.6 Guarantees 46.3 46.3 Forward starting reverse repurchase and securities borrowing agreements 18.4 18.4 Irrevocable committed prolongation of existing loans 2.5 0.8 1.3 0.0 0.0 4.6 Total 157.9 1.4 1.8 0.0 0.0 161.0 of which: Credit Suisse 70.1 0.0 0.0 0.0 0.0 70.1 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Assets Total financial assets measured at amortized cost 422.6 28.7 34.4 78.7 70.4 92.7 727.6 Amounts due from banks 13.4 0.7 0.6 0.0 0.0 0.1 14.8 Loans and advances to customers 139.4 16.3 28.3 74.9 55.5 72.9 387.2 Other financial assets measured at amortized cost 8.7 4.2 2.8 3.0 14.8 19.7 53.3 Total financial assets measured at fair value through profit or loss 300.2 10.0 7.8 3.6 9.9 2.0 1.9 335.3 Financial assets at fair value not held for trading 24.6 10.0 7.8 3.6 9.9 2.0 1.9 59.8 Financial assets measured at fair value through other comprehensive income 0.3 0.9 0.9 0.1 0.0 0.0 2.2 Total non-financial assets 7.6 0.2 2.0 0.4 29.0 39.2 Total assets 730.7 39.6 43.4 82.4 82.3 95.1 31.0 1,104.4 Liabilities Total financial liabilities measured at amortized cost 521.9 40.0 49.6 20.5 35.1 23.4 11.1 701.5 Customer deposits 463.0 28.3 23.8 7.5 2.2 0.3 525.1 Debt issued measured at amortized cost 6.6 8.8 23.3 11.9 31.1 21.9 11.1 114.6 of which: non-subordinated 4.6 8.8 23.3 9.5 30.6 21.9 98.6 of which: subordinated 2.0 2.4 0.5 11.1 16.0 Total financial liabilities measured at fair value through profit or loss 1 265.9 13.8 16.3 19.6 7.3 10.5 333.4 Debt issued designated at fair value 9.3 12.3 15.9 19.3 6.9 10.0 73.6 Total non-financial liabilities 7.2 3.0 2.1 12.3 Total liabilities 795.1 56.7 65.9 40.1 42.4 33.9 13.2 1,047.1 Guarantees, loan commitments and forward starting transactions 2 Irrevocable loan commitments 39.3 0.3 0.4 0.0 40.0 Guarantees 22.4 22.4 Forward starting reverse repurchase and securities borrowing agreements 3.8 3.8 Irrevocable committed prolongation of existing loans 4.7 4.7 Total 70.1 0.3 0.4 0.0 70.9 1 As of 31 December through profit or loss agreements, measured at information. b) Maturity analysis of financial liabilities on an undiscounted The table below provides principal and liabilities are trading liabilities, Due within 1 , as this provides a conservative reflection of the nature of these trading activities. The residual contractual extend over significantly longer periods. 31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Financial liabilities recognized on balance sheet 1 Amounts due to banks 60.2 2.7 4.2 0.3 4.4 0.0 71.7 Payables from securities financing transactions 5.0 3.2 3.7 2.0 0.9 0.0 14.8 Cash collateral payables on derivative instruments 41.6 41.6 Customer deposits 619.5 77.6 75.4 17.6 9.9 0.3 800.4 Debt issued measured at amortized cost 2 10.7 16.4 38.8 37.4 87.8 75.6 12.4 279.3 Other financial liabilities measured at amortized cost 7.7 0.2 0.9 1.2 3.3 4.2 17.4 0.1 0.1 0.8 0.9 2.1 2.5 6.5 Total financial liabilities measured at amortized cost 744.7 100.2 123.1 58.5 106.3 80.0 12.4 1,225.2 Financial liabilities at fair value held for trading 3,4 34.2 34.2 Derivative financial instruments 3,5 192.2 192.2 Brokerage payables designated at fair value 42.5 42.5 Debt issued designated at fair value 6 17.1 14.3 30.1 32.1 17.4 38.7 149.8 Other financial liabilities designated at fair value 22.2 0.2 1.2 2.3 2.1 1.6 29.7 Total financial liabilities measured at fair value through profit or loss 308.2 14.6 31.3 34.5 19.5 40.3 448.3 Total 1,052.9 114.8 154.3 93.0 125.7 120.4 12.4 1,673.5 315.9 33.9 42.8 21.7 30.8 29.0 474.1 Guarantees, loan commitments and forward starting transactions Irrevocable loan commitments 7 90.7 0.5 0.4 0.0 0.0 91.6 Guarantees 46.3 46.3 Forward starting reverse repurchase and securities borrowing agreements 7 18.4 18.4 Irrevocable committed prolongation of existing loans 2.5 0.8 1.3 0.0 0.0 4.6 Total 157.9 1.4 1.8 0.0 0.0 161.0 70.1 0.0 0.0 0.0 0.0 70.1 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Financial liabilities recognized on balance sheet 1 Amounts due to banks 6.3 2.6 1.9 0.3 0.6 0.0 11.7 Payables from securities financing transactions 3.3 0.3 0.4 0.3 4.4 Cash collateral payables on derivative instruments 36.4 36.4 Customer deposits 463.1 28.5 24.5 8.0 2.4 0.3 526.9 Debt issued measured at amortized cost 2 6.8 9.4 24.8 14.4 37.9 28.0 11.9 133.4 Other financial liabilities measured at amortized cost 4.7 0.1 0.5 0.5 1.3 1.4 8.5 0.1 0.1 0.5 0.5 1.3 1.4 3.8 Total financial liabilities measured at amortized cost 520.7 40.9 52.1 23.6 42.3 29.7 11.9 721.2 Financial liabilities at fair value held for trading 3,4 29.5 29.5 Derivative financial instruments 3,5 154.9 154.9 Brokerage payables designated at fair value 45.1 45.1 Debt issued designated at fair value 6 9.4 12.4 16.1 19.7 7.1 18.8 83.4 Other financial liabilities designated at fair value 27.1 1.4 0.4 0.4 0.5 0.8 30.6 Total financial liabilities measured at fair value through profit or loss 266.0 13.8 16.4 20.0 7.6 19.6 343.5 Total 786.8 54.7 68.6 43.6 49.8 49.3 11.9 1,064.7 Guarantees, loan commitments and forward starting transactions Irrevocable loan commitments 7 39.3 0.3 0.4 0.0 40.0 Guarantees 22.4 22.4 Forward starting reverse repurchase and securities borrowing agreements 7 3.8 3.8 Irrevocable committed prolongation of existing loans 4.7 4.7 Total 70.1 0.3 0.4 0.0 70.9 1 Except for financial liabilities at payments. cash flows that would have to be paid if 32.3 bn due within 1 month (31 December 2022: USD 27.8 bn), USD 1.8 bn due between 1 month and 1 year (31 December 2022: USD 1.7 bn) and USD 0 bn due between 1 and 5 years (31 December 2022: USD 0 bn). 1,195 m (31 December 2022: USD 46 m) related to committed amount of USD 100.1 bn (31 December 34.4 bn) is presented in applicable interest rate prevailing as of the reporting date. Future principal payments that are variable are determined by reference to the conditions existing at the relevant reporting date. commitments and forward starting reverse repurchase agreements measured at fair value (see footnote 5).

Interest rate benchmark reform

Interest rate benchmark reform	12 Months Ended
	Dec. 31, 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 25 During 2023, the The transition of the largest remaining non-derivative exposure, the US mortgage portfolio of approximately USD 9 bn as of Overnight Financing LIBOR rates, i.e., as well as Wealth Management (Credit Suisse), USD 1 bn (predominantly attributable to positions acquired through the acquisition of the synthetic LIBOR rates. The Group will continue to to alternative rates in 2024. In August 2022, to June 2022 2023, the transition of these USD LIBOR-linked derivatives had been The 31 December 2023 given transition has largely completed as noted 31.12.22 1 Measure USD LIBOR benchmark rates Carrying value of non-derivative financial instruments Total non-derivative financial assets USD m 14,269 2 Total non-derivative financial liabilities USD m 1,138 3 Trade count of derivative financial instruments Total derivative financial instruments Trade count 32,006 4 Off-balance sheet exposures Total irrevocable loan commitments USD m 4,606 5 1 As of 31 December 2022, 1 bn of loans related to USD LIBOR. The remaining balances LIBOR, with transition dependent upon the actions of respective issuers. 2,000 30 June 2023. No 3 bn of loan commitments that efforts remained open as of 31 December 2022. In 4 bn denominated publicly dates, publicly issued dates. applicable.

Hedge accounting

Hedge accounting	12 Months Ended
	Dec. 31, 2023
Disclosure Of Hedge Accounting [Line Items]
Disclosure Of General Hedge Accounting Explanatory	Note 26 Derivatives designated in hedge accounting relationships The Group applies hedge risk related to net investments in foreign › Refer to “Market risk” in the “Risk management and how they are managed by the Group Hedging instruments and hedged risk Interest rate swaps are in benchmark change in the fair value of the hedged position in transaction Cross-currency foreign exchange swaps in foreign operations. In both cases the hedged risk arises solely from The notional of the designated hedging instruments matches the rate determined based on the swap sensitivity. Hedged items and hedge designation Fair value hedges of interest rate risk related to Fair associated with loans to customers customer deposits, receive floating cash flows or that the Average Overnight (TONA), Singapore Overnight Rate Average Cash flow hedges of forecast transactions The Group hedges forecast cash flows on non-trading financial assets and liabilities that bear interest are expected timing of future and interest cash Group, which is risk exposures traded and designated, or are terminated resulting Fair value hedges of foreign exchange risk related to issued Debt instruments denominated in currencies other than the US dollar are designated in fair value hedges of spot foreign exchange economically designations also impact consolidated profit or loss. Hedges of net investments in foreign operations The branches and associates. Upon maturity of hedging instruments, typically one to three months, the hedge relationship is terminated and new designations are made Economic relationship between hedged item and hedging The economic relationship analysis instrument, a quantitative respective terms is also performed. Sources of hedge ineffectiveness In different curves to date of the hedging derivative. In hedges of foreign hedging instruments and items. In hedges of net investments in foreign operations, ineffectiveness is unlikely unless the hedged net assets fall below the designated hedged amount. the foreign operation, where the currency basis may cause ineffectiveness. Hedge ineffectiveness from financial instruments Other net income from financial instruments measured at fair value Derivatives not designated in hedge accounting relationships Non-hedge-accounted Other income from financial instruments , even when held as an or to exchange contracts acting as economic hedges, which are Net interest income. All hedges: designated hedging instruments As of or for the year ended 31.12.23 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 246,909 3 51 2,275 (2,311) (36) Cash flow hedges 97,834 3 0 (337) 358 21 Foreign exchange risk Fair value hedges 2 33,877 468 291 132 (151) (19) Hedges of net investments in foreign operations 38,668 17 1,270 (2,317) 2,320 3 As of or for the year ended 31.12.22 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 92,415 0 0 (5,195) 5,169 (27) Cash flow hedges 75,304 2 5 (5,813) 5,760 (53) Foreign exchange risk Fair value hedges 2 20,566 845 3 (1,088) 1,105 18 Hedges of net investments in foreign operations 14,009 7 529 336 (337) (1) 1 Amounts used accounting designation and accounted for as a cost of hedging with amounts deferred in Other comprehensive income within Equity. Fair value hedges: designated hedged items 1 USD m 31.12.23 31.12.22 Interest rate risk FX risk Interest rate risk FX risk Loans and advances to customers Carrying amount of designated loans 61,107 14,270 of which: accumulated amount of fair value hedge adjustment 457 (1,249) of which: accumulated amount of fair value hedge adjustment subject portfolio that ceased to be part of hedge accounting (179) (51) Other financial assets measured at amortized cost – debt securities Carrying amount of designated debt securities 6,333 4,577 (109) (180) Customer deposits Carrying amount of customer deposits 8,972 50 Debt issued measured at amortized cost Carrying amount of designated debt issued 156,507 22,329 68,529 20,566 (2,976) (6,057) 1 12 bn of intragroup debt instruments which are these instruments impact consolidated profit or loss. No such designations were in place as of 31 December 2022. Fair value hedges: profile of the timing of the 31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 1 7 29 142 68 247 Cross-currency swaps 1 2 2 22 7 34 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 0 4 10 53 26 92 Cross-currency swaps 0 1 2 12 5 21 Cash flow hedge reserve on a pre-tax basis USD m 31.12.23 31.12.22 Amounts related to hedge relationships for which hedge (2,319) (4,692) Amounts related to hedge relationships for which hedge (1,487) (540) Total other comprehensive income recognized directly in equity related to cash flow hedges, on a pre-tax basis (3,806) (5,232) Foreign currency translation reserve on a pre-tax basis USD m 31.12.23 31.12.22 Amounts related to hedge relationships for which hedge (2,063) 284 Amounts related to hedge relationships for which hedge 266 266 Total other comprehensive income recognized directly in equity related to hedging instruments basis (1,798) 550 Interest rate benchmark reform In 2023, the Group Interest Rate Benchmark (Amendments to IFRS 9, IFRS 7) , published by Singapore dollars respectively. the London Clearing House), with hedge relationships Interest Rate Benchmark Reform – Phase 2 (Amendments . Cash flow and replaced with new ARR designations in May As of 31 December 2023, cessation date of in such hedge relationships as of 31 December 2022. Hedges of net investments in foreign operations are not › Refer to Note 1a item 2j for more information interest rate benchmark reform › Refer to Note 25 for more information about the transition Hedging instruments referencing LIBOR 31.12.22 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 20,383 0 0 Cash flow hedges 2,179 0 0

Post-employment benefit plans

Post-employment benefit plans	12 Months Ended
	Dec. 31, 2023
Disclosure Post-employment Benefit Plans [Line Items]
Post-employment benefit plans [text block]	Note 27 a) Defined benefit plans UBS has established and practices. specific plan rules. Swiss pension plans The Swiss pension AG in Switzerland and employees of AG, and exceed the minimum benefit requirements under Swiss pension and survivor by Swiss pension Swiss plan 138,180 164,169 ), and into the Credit Suisse plan. Savings depending on the 6.5 % and 27.5 % of the contributory base salary 2.8 % and 9 % of the contributory the level 2.5 % and 13.5 % of and 0 % 9 % contribution contribution that ranges between 7.5 % and 25.0 % of the contributory base salary and 6 % of the contributory variable compensation. Employees 5.0 % and 14.0 % of the contributory base salary 3 % and 9 % of the contributory variable on age and choice of savings survivor benefits. The plans offer to members at the 65 lump sum payment. Participants 58 , but they can also continue employment 70 . Employees can purchases of benefits to fund early retirement benefits. The pension amount the transferred participant’s determined by the Pension Foundation Boards at the Although the Swiss plans are as defined benefit plans participants’ retirement savings accounts and the payment of Actuarial valuations in accordance this basis occur, the that full funding can 10 significantly required. In this situation, the risk is shared between employer and employees, and the employer is cover more than 50 % of the accordance with Swiss 119.2 % at 0.5 % technical interest 124.0 % at 1.62 % technical 119.0 % at 0.5 % technical interest rate). The investment strategies of the to diversification on regularly and long-term balance between assets and liabilities. As of 31 December as the fair value of the plan assets exceeded the defined benefit obligation (DBO) by USD 6,332 m for the UBS Swiss plan and USD 3,150 m for the Credit Suisse 7,848 m, Credit Suisse Swiss plan 31 May 2023: USD 3,772 m). However, a surplus not estimated 31 December 2023 and 31 December 2022, the hence no net defined benefit asset was recognized on the balance sheet; asset of USD 88 m was recognized USD 77 m). The regular employer 549 m for the 283 m for the Credit Suisse Swiss plan. Changes to the Credit Suisse Swiss pension plan In December scheme to adopt the plan rules be closed for further measures led to an increase in UBS’s pension obligations in Switzerland resulting in a one-time pre-tax loss of USD 245 m (CHF 207 m) and equity and CET1 capital. UK pension plans UBS maintains two major the Credit price inflation, 60 65 . The guaranteed lifetime for more than 20 years and participants are no longer accruing benefits for current participate in the UK defined contribution plans. The governance responsibility for each UK plan Both plans between expected and actual longevity. In 2019, UBS and the UBS UK to provide security for December 2023 was USD 260 m (31 December 2022: USD 292 m) and includes assets. The insolvency or not paying a required funding contribution. The most recent funding contributions 19 m to 5 m). The at USD 19 m for the UBS UK plan, subject to regular funding reviews during No contributions Suisse UK defined USD 7 m in 2023, and such payments are expected to continue US defined benefit plans There are normal retirement age of 65 . All main plans employees have participated in defined contribution plans. One of salary in a retirement that is linked to the average yield on one-year US government bonds. For the other UBS defined benefit plan, retirement benefits accrue based on the benefits can take are accrued based on health-care benefits for eligible retired employees. As required under for the governance plan assets. The 12 m for 10 m for Suisse US plans. German pension plans There are two major unfunded UBS defined 65 paid directly by UBS. In the larger of account. The accumulated account balance a rate of 5 %. The plan has been closed to new no variable compensation. For this plan, the accumulated account balance is credited on an annual basis with a guaranteed interest rate of 6 % for amounts accrued before 2010, of 4 % for amounts accrued from 2010 to 2017, and of 0.9 % for amounts accrued after benefits when they are due resides entirely with UBS. A portion of the pension payments is directly increased in line with price inflation. In investment returns 0 %. The June 2018 and for all eligible active participants younger of salary in a retirement savings account. The employer contributions in 2024 are estimated at USD 14 m for the UBS German plans. There are no major Credit Suisse defined benefit plans in Financial information by plan The tables defined benefit plans, as well as an analysis of amounts recognized Other comprehensive income . Defined benefit plans USD m Swiss plans UK plans US and German plans Total 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 Defined benefit obligation at the beginning of the year 22,272 27,398 2,166 4,105 1,375 1,740 25,813 33,242 Defined benefit obligation recognized upon the acquisition 15,142 0 954 0 1,025 0 17,121 0 Current service cost 567 416 1 0 5 5 573 420 Interest expense 680 344 139 67 88 35 907 446 Plan participant contributions 370 257 0 0 0 0 370 257 Remeasurements 4,446 (4,151) 195 (1,474) 37 (267) 4,678 (5,891) of which: actuarial (gains) / losses due to changes in demographic 76 3 (79) (6) (2) 1 (5) (2) of which: actuarial (gains) / losses due to changes in financial 2,886 (4,666) 128 (1,575) 51 (279) 3,064 (6,520) of which: experience (gains) / losses 2 1,484 512 146 107 (12) 11 1,619 631 Past service cost related to plan amendments 245 0 0 0 0 0 245 0 Curtailments (29) (20) 0 0 0 0 (29) (20) Benefit payments (2,309) (1,454) (125) (123) (177) (111) (2,611) (1,687) Termination benefits 21 0 0 0 0 0 21 0 Other movements 0 (5) 0 0 0 0 0 (5) Foreign currency translation 3,516 (513) 137 (408) 14 (28) 3,667 (949) Defined benefit obligation at the end of the year 44,922 22,272 3,467 2,166 2,368 1,375 50,756 25,813 of which: amounts owed to active members 24,007 11,927 97 65 330 169 24,435 12,160 of which: amounts owed to deferred members 0 0 1,655 656 904 528 2,558 1,184 of which: amounts owed to retirees 20,915 10,345 1,715 1,445 1,134 678 23,763 12,469 of which: funded plans 44,922 22,272 3,467 2,166 1,797 1,011 50,186 25,449 of which: unfunded plans 0 0 0 0 571 363 571 363 Fair value of plan assets at the beginning of the year 30,119 33,975 2,488 4,297 1,039 1,329 33,646 39,601 Fair value of plan assets recognized upon the acquisition of the Credit Suisse Group 18,914 0 1,499 0 824 0 21,236 0 Return on plan assets excluding interest income 1,234 (3,248) 153 (1,312) 66 (223) 1,453 (4,782) Interest income 916 485 173 70 70 31 1,159 586 Employer contributions 690 685 12 5 29 16 732 706 Plan participant contributions 370 257 0 0 0 0 370 257 Benefit payments (2,309) (1,454) (125) (123) (177) (111) (2,611) (1,687) Administration expenses, taxes and premiums paid (19) (12) (1) 0 (6) (3) (27) (16) Other movements 2 (2) 0 0 0 0 2 (2) Foreign currency translation 4,485 (567) 165 (450) 4 0 4,654 (1,017) Fair value of plan assets at the end of the year 54,404 30,119 4,364 2,488 1,849 1,039 60,616 33,646 Surplus / (deficit) 9,482 7,848 897 321 (519) (335) 9,860 7,834 Asset ceiling effect at the beginning of the year 7,848 6,577 0 0 0 0 7,848 6,577 Asset ceiling effect recognized upon the acquisition of 3,695 0 0 0 0 0 3,695 0 Interest expense on asset ceiling effect 225 135 0 0 0 0 225 135 Asset ceiling effect excluding interest expense and foreign currency asset ceiling effect (3,336) 1,189 0 0 0 0 (3,336) 1,189 Foreign currency translation 963 (54) 0 0 0 0 963 (54) Asset ceiling effect at the end of the year 9,394 7,848 0 0 0 0 9,394 7,848 Net defined benefit asset / (liability) of major plans 88 0 897 321 (519) (335) 466 (14) Net defined benefit asset / (liability) of remaining plans (173) (100) Total net defined benefit asset / (liability) 293 (114) of which: Net defined benefit asset 1,088 355 of which: Net defined benefit liability 3 (795) (469) 1 Including Credit Suisse actuarial assumptions and what has actually occurred. Income statement – expenses related to defined benefit plans 1 USD m Swiss plans UK plans US and German plans Total For the year ended 31.12.23 2 31.12.22 31.12.23 2 31.12.22 31.12.23 2 31.12.22 31.12.23 2 31.12.22 Current service cost 567 416 1 0 5 5 573 420 Interest expense related to defined benefit obligation 680 344 139 67 88 35 907 446 Interest income related to plan assets (916) (485) (173) (70) (70) (31) (1,159) (586) Interest expense on asset ceiling effect 225 135 0 0 0 0 225 135 Administration expenses, taxes and premiums paid 19 12 1 0 6 3 27 16 Past service cost related to plan amendments 245 0 0 0 0 0 245 0 Curtailments (29) (20) 0 0 0 0 (29) (20) Termination benefits 21 0 0 0 0 0 21 0 Other movements (2) 0 0 0 0 0 (2) 0 Net periodic expenses recognized in net profit for major plans 811 402 (32) (3) 30 12 808 411 Net periodic expenses recognized in net profit for remaining plans 3 38 25 Total net periodic expenses recognized in net profit 847 437 1 Refer to Note 7. The table below provides information about the duration Swiss plans UK plans US and German plans 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Duration of the defined benefit obligation (in years) 1 13.1 13.1 15.1 13.7 8.3 7.9 Maturity analysis of benefits expected to be paid USD m Benefits expected to be paid within 12 months 3,056 1,294 182 107 221 123 Benefits expected to be paid between 1 and 3 years 5,149 2,657 337 234 412 232 Benefits expected to be paid between 3 and 6 years 7,671 3,977 563 384 558 335 Benefits expected to be paid between 6 and 11 years 12,080 6,743 1,032 667 847 502 Benefits expected to be paid between 11 and 16 years 10,513 6,223 1,066 667 632 388 Benefits expected to be paid in more than 16 years 34,221 22,446 4,339 2,570 925 516 1 The duration of the defined benefit obligation represents a weighted average across UBS and Actuarial assumptions The jurisdiction in discount rate. The discount currency of the assumptions used in calculating the DBO to determine their › Refer to Note 1a item 5 for a description The tables below show the significant actuarial assumptions Significant actuarial assumptions of 1 Swiss plans UK plans US plans German plans In % 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Discount rate 1.48 2.34 4.79 5.02 4.75 4.92 3.28 3.81 Rate of pension increase 0.00 0.00 2.94 3.08 0.00 0.00 2.10 2.20 Rate of interest credit on retirement savings 2.54 3.39 0.00 0.00 6.28 2 5.73 2 0.00 0.00 1 Represents weighted average across UBS and Credit Suisse plans. Mortality tables and life expectancies for Life expectancy at age 65 for a male member currently aged 65 aged 45 Country Mortality table 31.12.23 31.12.22 31.12.23 31.12.22 Switzerland BVG 2020 G with CMI 2022 projections 1 21.8 21.7 23.5 23.4 UK S3PA with CMI 2022 projections 2 22.2 3 23.5 23.4 3 24.6 USA Pri-2012 with MP-2021 projection scale 22.0 22.0 23.4 23.3 Germany Dr. K. Heubeck 2018 G 20.8 20.6 23.5 23.4 Life expectancy at age 65 for a female member currently aged 65 aged 45 Country Mortality table 31.12.23 31.12.22 31.12.23 31.12.22 Switzerland BVG 2020 G with CMI 2022 projections 1 23.5 23.5 25.1 25.1 UK S3PA with CMI 2022 projections 2 24.0 4 25.0 25.7 4 26.4 USA Pri-2012 with MP-2021 projection scale 23.5 23.4 24.8 24.8 Germany Dr. K. Heubeck 2018 G 24.2 24.0 26.4 26.3 1 In 2022, BVG 2020 G 23.1 24.3 Suisse plan female aged 65: 24.7 26.1 Sensitivity analysis of significant actuarial assumptions The table have been affected date. deemed sensitivities may not be linear. Sensitivity analysis of significant actuarial 1 Increase / (decrease) in defined benefit obligation Swiss plans UK plans US and German plans USD m 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Discount rate Increase by 50 basis points (2,365) (1,128) (243) (141) (91) (51) Decrease by 50 basis points 2,668 1,269 272 157 98 55 Rate of pension increase Increase by 50 basis points 1,894 877 204 127 10 4 Decrease by 50 basis points – 2 – 2 (189) (118) (9) (3) Rate of interest credit on retirement savings Increase by 50 basis points 334 178 – 3 – 3 9 9 Decrease by 50 basis points (334) (178) – 3 – 3 (8) (8) Life expectancy Increase in longevity by one additional year 1,315 593 108 65 64 39 1 The sensitivity analyses are based on a change in one increase was 0 % as of 31 December 2023 and as assumption is not applicable. Fair value of plan assets The tables below plans. Composition and fair value of plan assets Swiss defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 1,205 0 1,205 2 326 0 326 1 Equity securities 0 24 24 0 0 0 0 0 0 2,132 2,132 4 0 0 0 0 Bonds 100 0 100 0 0 0 0 0 51 0 51 0 0 0 0 0 Real estate / property Domestic 0 6,195 6,195 11 0 3,783 3,783 13 Foreign 0 1,017 1,017 2 0 919 919 3 Investment funds Equity Domestic 1,376 0 1,376 3 743 0 743 2 Foreign 8,317 2,196 10,513 19 4,964 2,171 7,134 24 Bonds 1 Domestic, AAA to BBB– 7,952 0 7,952 15 3,760 0 3,760 12 Domestic, below BBB– 1 0 1 0 0 0 0 0 Foreign, AAA to BBB– 13,497 0 13,497 25 6,031 0 6,031 20 Foreign, below BBB– 1,249 0 1,249 2 1,062 0 1,062 4 Real estate Domestic 1,906 0 1,906 4 0 0 0 0 Foreign 537 79 616 1 0 0 0 0 Other 1,960 3,373 5,333 10 1,540 3,547 5,086 17 Other investments 667 569 1,236 2 624 651 1,275 4 Total fair value of plan assets 38,817 15,586 54,404 100 19,049 11,071 30,119 100 31.12.23 31.12.22 Total fair value of plan assets 54,404 30,119 of which: 2 Bank accounts at UBS 666 337 UBS debt instruments 211 50 UBS shares 72 27 Securities lent to UBS 3 827 871 Property occupied by UBS 108 90 Derivative financial instruments, counterparty UBS 3 534 76 1 The bond credit ratings from other rating agencies positions disclosed in the table encompass both direct investments in UBS instruments and financial instruments are presented amounted to negative USD 33 m as of 31 December 2023 (31 December 2022: negative USD 8 m). Composition and fair value of plan assets UK defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 225 0 225 5 104 0 104 4 Bonds 1 Domestic, AAA to BBB– 3,619 0 3,619 83 1,729 0 1,729 69 Domestic, below BBB– 7 0 7 0 0 0 0 0 Foreign, AAA to BBB– 509 0 509 12 297 0 297 12 Foreign, below BBB– 0 0 0 0 7 0 7 0 Investment funds Equity Domestic 9 3 12 0 19 3 22 1 Foreign 234 0 234 5 366 0 366 15 Bonds 1 Domestic, AAA to BBB– 310 38 348 8 367 90 457 18 Domestic, below BBB– 6 0 6 0 1 0 1 0 Foreign, AAA to BBB– 97 0 97 2 90 0 90 4 Foreign, below BBB– 93 0 93 2 114 0 114 5 Real estate Domestic 61 0 61 1 64 0 64 3 Foreign 4 12 16 0 6 31 36 1 Other 64 0 64 1 (280) 0 (280) (11) Repurchase agreements (947) 0 (947) (22) (612) 0 (612) (25) Other investments 15 5 20 0 66 27 94 4 Total fair value of plan assets 4,306 58 4,364 100 2,336 151 2,488 100 1 The bond credit ratings from other rating agencies were used, these were converted to the equivalent rating in S&P’s US and German defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 32 0 32 2 7 0 7 1 Equity Domestic 54 0 54 3 55 0 55 5 Foreign 23 0 23 1 24 0 24 2 Bonds 1 Domestic, AAA to BBB– 308 0 308 17 359 0 359 35 Domestic, below BBB– 3 0 3 0 4 0 4 0 Foreign, AAA to BBB– 51 0 51 3 74 0 74 7 Foreign, below BBB– 2 0 2 0 3 0 3 0 Investment funds Equity Domestic 51 0 51 3 27 0 27 3 Foreign 82 18 100 5 33 0 33 3 Bonds 1 Domestic, AAA to BBB– 552 300 853 46 266 0 266 26 Domestic, below BBB– 172 41 213 12 109 0 109 10 Foreign, AAA to BBB– 75 14 89 5 2 0 2 0 Foreign, below BBB– 9 0 9 1 5 0 5 0 Real estate Domestic 1 9 10 1 0 11 11 1 Foreign 2 0 2 0 0 0 0 0 Other 51 0 52 3 54 0 54 5 Other investments (8) 5 (3) 0 5 1 6 1 Total fair value of plan assets 1,461 388 1,849 100 1,027 12 1,039 100 1 The bond credit ratings from other rating agencies were used, these were converted to the equivalent rating in S&P’s Other comprehensive income – gains / (losses) on defined benefit plans USD m Swiss plans UK plans US and German plans Total For the year ended 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 Remeasurement of defined benefit obligation (4,446) 4,151 (195) 1,474 (37) 267 (4,678) 5,891 of which: change in discount rate assumption (3,278) 5,414 (165) 1,451 (51) 317 (3,495) 7,183 of which: change in rate of pension increase assumption 0 0 38 123 1 (5) 39 118 of which: change in rate of interest credit on retirement savings 479 (718) 0 0 (9) (82) 470 (800) of which: change in life expectancy 0 0 79 5 0 (1) 79 4 of which: change in other actuarial assumptions (162) (33) 0 1 10 48 (152) 16 of which: experience gains / (losses) 2 (1,484) (512) (146) (107) 12 (11) (1,619) (631) Return on plan assets excluding interest income 1,234 (3,248) 153 (1,312) 66 (223) 1,453 (4,782) Asset ceiling effect excluding interest expense and foreign currency 3,336 (1,189) 0 0 0 0 3,336 (1,189) Total gains / (losses) recognized in other comprehensive income for major plans 124 (285) (41) 162 28 43 111 (80) Total gains / (losses) recognized in other comprehensive income for remaining plans (2) 7 Total gains / (losses) recognized in other comprehensive income 3 110 (73) 1 Including Credit actuarial assumptions and what has actually occurred. b) Defined contribution plans UBS sponsors several defined contribution is limited to its contributions contributions. Employer contributions 386 m for the UBS plans and USD 128 m for the Credit Suisse plans in 2023 (2022: 357 m for the UBS plans). › Refer to Note 7 for more information c) Related-party disclosure UBS is capacity, not limited to, trading, have a similar banking relationship with UBS. 35 m in fees for banking services from the major UBS 11 m from 36 m from 31 December 2023, 417 m in 26 m (31 December 2022: Major UBS plans held USD 265 m). › Refer to the “Composition and fair value of UBS instruments held by the Swiss pension funds

Employee benefits_ variable com

Employee benefits: variable compensation	12 Months Ended
	Dec. 31, 2023
Disclosure Equity Participation And Other Compensation Plans [Line Items]
Employee benefits: variable compensation [text block]	Note 28 a) Plans offered The Group Board (GEB) members and other employees with Share-based awards are granted paid in notional shares or cash. Awards are settled by delivering UBS shares at vesting, except in jurisdictions permitted for legal or tax reasons. Deferred employment with UBS. These compensation plans are also designed to meet provisions for regulated employees. The most significant deferred compensation plans › Refer to Note 1a Mandatory deferred compensation plans Long-Term Incentive Plan The Long-Term Group (i.e., GEB members and selected senior management). The number of notional shares delivered at vesting depends on two equally year compares Important three period for selected senior management. Equity Ownership Plan / Fund Ownership Plan The Equity Ownership Plan are subject to deferral requirements. Certain Asset Plan or FOP, previously delivered depends on the value of the underlying investment Deferred Contingent Capital Plan The deferral requirements. discretion of UBS, can be settled in cash or a perpetual, marketable AT1 capital instrument. DCCP awards generally notional forfeited if a the risk of insolvency, the public capital ratio falls below 20 % of DCCP awards year during the vesting period. Deferred compensation plans awarded to employees of Credit Awards granted in connection with the acquisition Retention awards were offered to selected employees of the Credit Suisse Group prior to the acquisition date to support the completion of the transaction of the acquisition and are delivered 50 % in cash (in general vesting 60 50 % in shares (in for certain regulated employees. Existing compensation plans offered to employees of Credit Suisse Credit Suisse offered to vest according over 22.48 shares in Credit Suisse). Unvested awards period include upfront cash awards, share awards and for the main purpose of employee retention. Upfront termination for the three-year service period according to the clawback Share awards that were granted as of the award vesting on each of the three anniversaries of the Financial advisor variable compensation In line with market practice for US wealth management businesses, the compensation for US financial advisors in Global Wealth Management approach based on production. Cash Compensable production is generally based on transaction revenue and investment advisory fees and may reflect further adjustments. The percentage rate generally varies based Financial period. The annual deferred compensation amount reflects Cash compensation and carelessness, or failure to comply with the firm’s rules, standards, practices and / or policies, and / or applicable laws and regulations. Financial supporting the transition of related to compensation commitments with financial advisors vesting requirements. Share delivery obligations Share delivery obligations related to employee 196 m shares as of 31 December 2023 (31 December 2022: 178 m shares). Share delivery obligations are calculated on the basis of undistributed notional share awards, taking applicable performance conditions into As of 31 December 2023, UBS held 131 m treasury shares (31 December 2022: 119 m) that were available to satisfy delivery obligations. b) Effect on the income statement Effect on the income statement for the financial year and The table recognized in the financial year ended in the income statement Credit Suisse Variable . The expense 2023 associated with these awards was USD 335 m for retention awards granted USD 412 m for outstanding deferred compensation The majority granted in February 2024. 31 December 2023 will be recognized in future 2.2 Variable compensation Expenses recognized in 2023 Expenses deferred to 2024 and later 1 USD m Related to the 2023 performance year Related to prior performance years Total Related to the 2023 performance year Related to prior performance years Total Non-deferred cash 2,859 (52) 2,807 0 0 0 Deferred compensation awards 523 656 1,179 777 757 1,534 of which: Equity Ownership Plan 155 330 485 263 245 509 of which: Deferred Contingent Capital Plan 180 241 421 312 451 763 of which: Long-Term Incentive Plan 164 40 204 160 34 193 of which: Fund Ownership Plan 24 46 69 41 27 68 Variable compensation – performance awards 3,382 604 3,986 777 757 1,534 Variable compensation – financial advisors 2 3,761 788 4,549 1,236 3,300 4,536 of which: non-deferred cash 3,440 (4) 3,436 0 0 0 of which: deferred share-based awards 110 87 197 113 209 321 of which: deferred cash-based awards 169 245 414 301 1,029 1,331 of which: compensation commitments with recruited financial 42 459 502 822 2,062 2,884 Variable compensation – other 3 784 526 1,310 384 583 968 Total variable compensation 7,927 1,918 9,845 4 2,398 4,640 7,037 1 Estimate as awards and is based on that are subject to vesting requirements. retention plan payments and 1,094 m in expenses related 689 m; other variable compensation: USD 208 m; financial advisor compensation: 197 m). A further USD 169 m in expenses related Note 7 (salaries: USD 4 m related to role-based 137 m; other personnel expenses: 27 m related to the settled compensation excluding social security was USD 1,087 m. Variable compensation (continued) Expenses recognized in 2022 Expenses deferred to 2023 and later 1 USD m Related to the 2022 performance year Related to prior performance years Total Related to the 2022 performance year Related to prior performance years Total Non-deferred cash 2,276 (16) 2,260 0 0 0 Deferred compensation awards 364 581 945 605 754 1,359 of which: Equity Ownership Plan 202 235 437 310 250 560 of which: Deferred Contingent Capital Plan 129 219 349 245 408 654 of which: Long-Term Incentive Plan 11 32 43 30 42 71 of which: Fund Ownership Plan 21 95 116 20 54 74 Variable compensation – performance awards 2,640 566 3,205 605 754 1,359 Variable compensation – financial advisors 2 3,799 709 4,508 1,290 2,652 3,942 of which: non-deferred cash 3,481 0 3,481 0 0 0 of which: deferred share-based awards 104 62 166 122 180 302 of which: deferred cash-based awards 185 215 400 588 636 1,224 of which: compensation commitments with recruited financial 29 432 461 580 1,836 2,416 Variable compensation – other 3 169 71 241 237 193 430 Total variable compensation 6,608 1,346 7,954 4 2,131 3,599 5,731 1 Estimate as awards and is based on that are subject to vesting requirements. 4 Includes USD 703 m in expenses related to share-based compensation (performance awards: USD 480 m; other variable compensation: USD 56 m; financial advisor compensation: USD 166 m). A further USD 88 m in expenses related to 4 m related to 61 m; other expenses: USD 23 m related to the Equity Plus Plan). Total personnel expense related to share-based equity-settled 716 m. Variable compensation (continued) Expenses recognized in 2021 Expenses deferred to 2022 and later 1 USD m Related to the 2021 performance year Related to prior performance years Total Related to the 2021 performance year Related to prior performance years Total Non-deferred cash 2,383 (10) 2,373 0 0 0 Deferred compensation awards 405 412 817 797 624 1,421 of which: Equity Ownership Plan 183 180 363 393 184 577 of which: Deferred Contingent Capital Plan 140 158 297 299 329 628 of which: Long-Term Incentive Plan 54 19 73 50 33 83 of which: Fund Ownership Plan 29 56 84 56 78 133 Variable compensation – performance awards 2,788 402 3,190 797 624 1,421 Variable compensation – financial advisors 2 4,175 685 4,860 1,097 2,323 3,419 of which: non-deferred cash 3,858 (6) 3,853 0 0 0 of which: deferred share-based awards 106 51 157 123 146 269 of which: deferred cash-based awards 170 202 372 311 495 806 of which: compensation commitments with recruited financial 41 438 479 662 1,682 2,344 Variable compensation – other 3 191 38 229 215 182 397 Total variable compensation 7,155 1,125 8,280 4 2,109 3,129 5,238 1 Estimate as of 31 compensable revenues and firm tenure using vesting requirements. USD 651 m in expenses related to share-based compensation 435 m; other variable compensation: USD 59 m; financial advisor compensation: USD 157 m). A further USD 85 m in expenses related to share-based 5 m related to 64 m; other personnel USD 16 m related to the Equity Plus Plan). Total personnel expense related to share-based equity-settled 641 m. c) Outstanding share-based compensation awards Share and performance share awards Movements in outstanding share-based awards Movements in outstanding share-based compensation Number of shares 2023 Weighted average grant date fair value (USD) Number of shares 2022 Weighted average grant date fair value (USD) Outstanding, at the beginning of the year 181,907,200 15 180,578,561 13 Share obligations assumed at merger date 14,535,612 20 Awarded during the year 63,907,823 20 62,203,770 18 Distributed during the year (54,365,846) 14 (54,639,882) 12 Forfeited during the year (7,076,202) 18 (6,235,249) 15 Outstanding, at the end of the year 198,908,588 17 181,907,200 15 of which: shares vested for accounting purposes 102,697,819 102,364,973 The 31 December 2022 was USD 64 m and USD 43 m, respectively. d) Valuation UBS share awards UBS measures compensation expense the SIX market conditions, where is discounted on at-the-money European without dividend between the grant date and distribution.

Interests in subsidiaries

Interests in subsidiaries	12 Months Ended
	Dec. 31, 2023
Interests In Subsidiaries [Line Items]
Disclosure Of Interests In Subsidiaries Explanatory	Note 29 a) Interests in subsidiaries UBS defines its significant subsidiaries as those entities that, either individually or the Group’s and contribution IFRS 12, Swiss regulations and the rules of the US Securities Individually significant subsidiaries The stated, the subsidiaries listed below have the proportion of ownership interest The country Suisse AG operate outside Switzerland, including in the UK, branches and offices in a number capital is provided in the currency of the legally registered Individually significant subsidiaries Company Registered office Share capital in million Equity interest accumulated in % UBS AG Zurich and Basel, Switzerland USD 385.8 100.0 UBS Business Solutions AG 1 Zurich, Switzerland CHF 1.0 100.0 Credit Suisse AG Zurich, Switzerland CHF 4,399.7 100.0 Credit Suisse Services AG Zurich, Switzerland CHF 1.0 100.0 1 UBS Business Solutions AG holds subsidiaries in China, India, Israel and Poland. Other subsidiaries The significant but contribute to the Group’s in accordance with requirements Other subsidiaries of UBS AG and Credit Suisse Company Registered office Primary business Share capital in million Equity interest accumulated in % Banco de Investimentos Credit Suisse (Brasil) S.A. São Paulo, Brazil Investment Banking BRL 164.8 100.0 BANK-now AG Horgen, Switzerland Personal & Corporate Banking CHF 30.0 100.0 Credit Suisse (Hong Kong) Limited Hong Kong, China Investment Banking HKD 8,192.9 100.0 Credit Suisse (UK) Limited London, United Kingdom Global Wealth Management GBP 245.2 100.0 Credit Suisse (USA), Inc. Wilmington, United States Investment Banking USD 0.0 100.0 Credit Suisse Bank (Europe), S.A. Spain, Madrid Investment Banking EUR 18.0 100.0 Credit Suisse Funds AG Zurich, Switzerland Asset Management CHF 7.0 100.0 Credit Suisse Securities (Europe) Limited London, United Kingdom Non-core and Legacy USD 9.6 100.0 Credit Suisse Securities (Japan) Limited Tokyo, Japan Investment Banking JPY 78,100.0 100.0 Credit Suisse Securities (USA) LLC Wilmington, United States Non-core and Legacy USD 0.0 100.0 Credit Suisse Services (USA) LLC Wilmington, United States Group Items USD 0.0 100.0 DLJ Mortgage Capital, Inc. Wilmington, United States Non-core and Legacy USD 0.0 100.0 UBS Asset Management (Americas) Inc. Wilmington, Delaware, USA Asset Management USD 0.0 100.0 UBS Asset Management Life Ltd London, United Kingdom Asset Management GBP 15.0 100.0 UBS Business Solutions US LLC Wilmington, Delaware, USA Group Items USD 0.0 100.0 UBS Fund Management (Switzerland) AG Basel, Switzerland Asset Management CHF 1.0 100.0 UBS (Monaco) S.A. Monte Carlo, Monaco Global Wealth Management EUR 49.2 100.0 UBS Securities Australia Ltd Sydney, Australia Investment Bank AUD 0.3 1 100.0 UBS Securities Hong Kong Limited Hong Kong SAR, China Investment Bank HKD 2,841.6 100.0 UBS Securities Japan Co., Ltd. Tokyo, Japan Investment Bank JPY 34,708.7 100.0 UBS SuMi TRUST Wealth Management Co., Ltd. Tokyo, Japan Global Wealth Management JPY 5,165.0 51.0 1 Includes a nominal amount relating to redeemable preference shares. Consolidated structured entities Consolidated vehicles. UBS has no individually significant subsidiaries that In financial consolidated intention to do so in unconsolidated SE that resulted in the Group controlling

Interests in associates and joi

Interests in associates and joint ventures	12 Months Ended
	Dec. 31, 2023
Interests In Associates And Joint Ventures [Line Items]
Disclosure of interests in associates and joint ventures [text block]	b) Interests in associates and joint ventures As of 31 December Also, there were no or its associates or joint ventures of the Group. Investments in associates and joint ventures USD m 2023 2022 Carrying amount at the beginning of the year 1,101 1,243 Additions 1 3 Acquisition of the Credit Suisse Group 1,569 0 Reclassifications (33) (44) Share of comprehensive income (365) (41) of which: share of net profit / (loss) 1 (348) 32 of which: share of other comprehensive income 2 (17) (73) Share of changes in retained earnings (1) 0 Dividends received (90) (31) Foreign currency translation 192 (30) Carrying amount at the end of the year 2,373 1,101 of which: associates 2,164 1,098 of which: SIX Group AG, Zurich 1,646 954 of which: other associates 519 144 of which: joint ventures 209 3 1 For 2023, consists of negative USD 383 m from associates, partly offset by USD 34 m from joint ventures (for 2022, consists of 27 m from associates and USD 5 m from joint ventures). negative USD 17 m from associates (for 2022, consists of negative USD 73 m from associates).

Interests in unconsolidated str

Interests in unconsolidated structured entities	12 Months Ended
	Dec. 31, 2023
Interests In Unconsolidated Structured Entities [Line Items]
Disclosure Of Unconsolidated Structured Entities Explanatory	c) Unconsolidated structured entities UBS is considered establishing that entity or in 2023, the securitization vehicles, client vehicles because it did not control them. Interests in unconsolidated structured entities The table below presents the Group’s interests in and maximum exposure to loss total assets held by the SEs in which UBS had an interest parties, for which the carrying amount of UBS’s interest As a interests clearly sponsored significant considered structured entities. Prior periods have been restated The increase Legacy business division. Sponsored unconsolidated structured entities in which UBS did During 2023 and not have an interest at year-end. During 2023 and 2022, UBS and third parties did not transfer any assets into sponsored securitization vehicles created in those years. perspective 0.5 bn 0.5 bn, (2022: 1 bn 3 bn, investors invested and redeemed market movements, resulted in a total closing net asset value 137 bn (31 December 2022: USD 38 bn). Interests in unconsolidated structured entities 31.12.23 USD m, except where indicated Securitization vehicles 1 Client vehicles sponsored by UBS 2 Investment funds Other vehicles sponsored by third parties 3 Total Maximum exposure to loss 4 Financial assets at fair value held for trading 2,086 58 9,653 325 12,122 12,122 Derivative financial instruments 2 174 68 0 244 244 Loans and advances to customers 0 0 312 246 558 558 Financial assets at fair value not held for trading 1,645 0 497 579 2,720 2,720 Financial assets measured at fair value through other comprehensive income 0 0 0 0 0 0 Other financial assets measured at amortized cost 202 0 1 0 203 453 Total assets 3,935 232 10,531 1,151 15,848 16,098 Derivative financial instruments 7 27 590 0 623 98 Total liabilities 7 27 590 0 623 98 Assets held by the unconsolidated structured entities in which UBS had an interest (USD bn) 70 5 3 6 276 7 1 8 31.12.22 USD m, except where indicated Securitization vehicles 1,2 Client vehicles sponsored by UBS 2 Investment funds Other vehicles sponsored by third parties 3 Total Maximum exposure to loss 4 Financial assets at fair value held for trading 263 2 5,884 0 6,149 6,149 Derivative financial instruments 3 160 115 0 278 278 Loans and advances to customers 0 0 119 0 119 119 Financial assets at fair value not held for trading 0 0 225 0 225 225 Financial assets measured at fair value through other comprehensive income 0 0 0 0 0 0 Other financial assets measured at amortized cost 0 0 2 0 3 252 Total assets 266 162 6,345 0 6,773 7,023 Derivative financial instruments 1 35 763 0 798 2 Total liabilities 1 35 763 0 798 2 Assets held by the unconsolidated structured entities in which UBS had an interest (USD bn) 39 5 2 6 139 7 0 1 Includes loans with a high both UBS and third parties. from 31 December 2023, bonds periods restated. 852 m and 5,057 m as corresponding decrease in assets held by securitization vehicles in which 11 bn and a decrease in assets held by client 105 bn as of 31 December 2022. vehicles sponsored by third parties included loans not consider the risk-reducing effects of collateral or other credit enhancements. of the investment funds sponsored by UBS and the carrying amount of UBS’s interests in the investment by third parties. The Group retains or purchases letters of generally equal to the carrying amount of market movements. amount, adjusted for losses already incurred, representing the The including unconsolidated SE or risk-reducing effects of collateral or In contractually obligated to do so, nor does the Group currently In 2023 movements Other , which were generally hedged with sponsored funds. Interests in securitization vehicles As securitization vehicles to the interests disclosed in the table above, the Group manages the assets of certain securitization vehicles and receives fees acquisition of the Credit Suisse Group, is not represented by the on-balance sheet fee receivable but rather by the future exposure 26 bn as excluded from the table above. The numbers outlined in the table above may differ from the securitization Pillar 3 ubs.com/investors , for securitizations it did within of vehicles › Refer to the 31 December 2023 Pillar 3 Report, ubs.com/investors , for more information Interests in client vehicles sponsored by UBS UBS-sponsored exposures. Such vehicles entity with the investor’s intended investment objective, As of 31 December 2023 relate to financing, secondary market and derivative Interests in investment funds Investment funds have a collective does not have a substantive effect have substantive voting or similar rights. The Group holds structured product offerings. various pooled investment funds and receives fees based, in whole or in part, on the net asset value of the fund and / or the performance of the fund. The specific fee structure is determined based on various market fund’s nature and the represent an interest in the fund, as they align the Group’s exposure with investors, providing a the performance fund’s assets and / or from the fund’s assets. by 511 bn 292 bn 31 December 2023 and 31 December not have any material exposure to loss from these interests Interests in other vehicles sponsored by third parties Interests in other vehicles sponsored by third parties third-party structured entities acquired

Changes in organization and acq

Changes in organization and acquisitions and disposals of subsidiaries and businesses	12 Months Ended
	Dec. 31, 2023
Changes In Organisation And Disposals [Line Items]
Disclosure of changes in organisation and disposals [text block]	Note 30 Acquisitions of subsidiaries and businesses Acquisition of Credit Suisse Group On 12 June and liabilities indirect subsidiaries of Credit Suisse Group AG. › Refer to the “Acquisition and integration Disposals of subsidiaries and businesses Sale of UBS Hana Asset Management Co., Ltd. In the 51 % stake Hana 23 m translation loss) in Asset Management which was recognized Other income . Changes in organization Legal structure integration In December 2023, the Board of Directors of UBS Group AG approved the merger of UBS AG and Credit Suisse AG, and both entities entered into a and is expected to occur by the end of the second quarter UBS also expects to complete the transition to and the planned merger of UBS Switzerland AG and Credit

Related parties

Related parties	12 Months Ended
	Dec. 31, 2023
Disclosure Related Parties [Line Items]
Disclosure Of Related Party Explanatory	Note 31 Related parties of the Group are: – associates (entities that are under the significant influence – joint ventures (entities in which UBS shares control with another – post-employment benefit plans for the benefit of UBS employees; – key management personnel and close family members of – entities over which key management personnel or their significant influence. Key management personnel are those persons having authority the activities of and the Group Executive Board (the a) Remuneration of key management personnel The retirement. Total the table below. Remuneration of key management USD m, except where indicated 31.12.23 31.12.22 31.12.21 Base salaries and other cash payments 1 35 27 31 Incentive awards – cash 2 24 17 17 Annual incentive award under DCCP 36 25 26 Employer’s contributions to retirement benefit plans 3 2 3 Benefits in kind, fringe benefits (at market value) 1 1 1 Share-based compensation 3 63 45 45 Total 162 118 124 Total (CHF m) 4 147 114 113 1 May include role-based allowances in line is based on the composed of LTIP awards. For dollar amounts translated at the applicable performance award currency exchange rates (2023: USD / 0.91 ; 2022: USD / CHF 0.96 ; 2021: USD / CHF 0.92 ). The independent members of the BoD, including the Chairman, do not have and thus are not entitled to benefits upon services as independent 11.7 m (CHF 10.6 m) in 2023, 11.1 m (CHF 10.7 m) in 2022 and USD 7.5 m (CHF 6.9 m) in 2021. b) Equity holdings of key management personnel Equity holdings of key management personnel 1 31.12.23 31.12.22 Number of UBS Group AG shares held by members of the 2 5,121,564 3,009,686 1 No options were held in 2023 and 2022 by non-independent members provisions. Of the share totals above, no shares were held by close family members of key management personnel on 31 December 2023 and 31 December 2022. by 31 December Group AG. c) Loans, advances, mortgages and deposit balances The non-independent member ordinary including interest rates and unfavorable features for the firm. Independent BoD members are granted loans and mortgages in the ordinary course of business at general market conditions. Outstanding balances with key management personnel Loans, advances and mortgages to key management 1 USD m, except where indicated 2023 2022 Balance at the beginning of the year 33 34 Balance at the end of the year 2 61 33 Balance at the end of the year (CHF m) 2,3 52 31 1 All loans are secured loans. 14 m (CHF 12 m) unused uncommitted credit facilities as of 31 December 2023 and no unused uncommitted credit facilities as of 31 December 2022. amounts disclosed represent the respective US dollar amounts translated at the relevant year-end In 24 m 21 m) 31 December 2023. d) Other related-party transactions with entities controlled In 2023 their close 31 December Furthermore, in not receive received no fees. e) Transactions with associates and joint ventures Loans to and outstanding receivables from associates USD m 2023 2022 Carrying amount at the beginning of the year 217 251 Additions 824 402 Reductions (796) (438) Foreign currency translation 26 1 Carrying amount at the end of the year 271 217 of which: unsecured loans and receivables 263 209 Other transactions with associates and As of or for the year ended USD m 31.12.23 31.12.22 Payments to associates and joint ventures for goods and services 190 138 Fees received for services provided to associates and joint ventures 24 4 Liabilities to associates and joint ventures 106 90 Commitments and contingent liabilities to associates 11 7 Refer to Note 29 for an overview of investments

Invested assets and net new mon

Invested assets and net new money	12 Months Ended
	Dec. 31, 2023
Disclosure Invested Assets And Net New Money [Line Items]
Disclosure Of Invested Assets And Net New Money Explanatory	Note 32 The including net new money, Invested assets Invested assets include managed fiduciary deposits, time deposits, savings accounts, and held management and and does not offer and deposits from third-party banks for Discretionary assets the client ultimately sold results independently providing a service to their respective clients, Net new money Net new money in a reporting period is the amount those withdrawn by existing clients and clients who terminated Net new determined at net new money inflows. excluded from net new money, Reclassifications between invested generally treated as net new imposed regulation or a reported as Other effects . The Investment Bank does not track Investment Bank already with UBS. In 2023 money and accounting applied to resulting in an increase to 24 bn and an increase 2022 of USD 8 bn, all relating to Asset Management. Invested assets and net new money As of or for the year ended USD bn 31.12.23 31.12.22 1 Fund assets managed by UBS 624 390 Discretionary assets 1,996 1,464 Other invested assets 3,094 2,127 Total invested assets 2 5,714 3,981 of which: double counts 461 340 Net new money 2 80 76 1 Comparative figures have been restated to include net new money and invested assets from associates. Development of invested assets USD bn 2023 2022 1 Total invested assets at the beginning of the year 2 3,981 4,614 Net new money 80 76 Market movements 3 428 (596) Foreign currency translation 91 (74) Other effects 1,134 (40) of which: acquisitions / (divestments) 1,180 (19) of which: Credit Suisse acquisition 1,205 0 Total invested assets at the end of the year 2 5,714 3,981 1 Comparative figures have been restated to include net new money and invested assets from associates.

Currency translation rates

Currency translation rates	12 Months Ended
	Dec. 31, 2023
Foreign Exchange Rates [Line Items]
Disclosure Of Effect Of Changes In Foreign Exchange Rates Explanatory	Note 33 The following table shows with a functional currency other than the US dollar Closing exchange rate Average rate 1 As of For the year ended 31.12.23 31.12.22 31.12.23 31.12.22 31.12.21 1 CHF 1.19 1.08 1.12 1.05 1.09 1 EUR 1.10 1.07 1.08 1.05 1.18 1 GBP 1.28 1.21 1.25 1.23 1.37 100 JPY 0.71 0.76 0.70 0.76 0.91 1 Monthly income statement items of twelve month-end rates, weighted according to the income and expense volumes of all operations year 2023 consider income and expenses from weighted average rates for the Group.

Events after the reporting peri

Events after the reporting period	12 Months Ended
	Dec. 31, 2023
Events After The Reporting Period [Line Items]
Disclosure of events after reporting period [text block]	Note 34 Adjustment made within the IFRS 3 measurement period The acquisition USD 28.9 bn. Following the publication its acquisition-date fair value estimates in accordance with the 12-month measurement period requirements provided by IFRS 3, 1.2 bn, decreasing USD 27.7 bn. As a result, 2023 operating profit before tax and 2023 net profit USD 1.2 bn, basic 0.38 8.83 USD 0.36 8.45 . › Refer to Note 2 for more information Non-adjusting post balance sheet events On facility, reducing 38 bn to CHF 19 bn as of that date. In March 2024, Credit Suisse has entered into Management under (SPG). Following this parties have also to Atlas. In 8 bn of senior secured 750 m swingline facility to in the 0.3 bn from assignment of the loan facilities.

Main differences between IFRS a

Main differences between IFRS and Swiss GAAP	12 Months Ended
	Dec. 31, 2023
Main Differences Between IFRS And Swiss GAAP [Line Items]
Disclosure of main differences between IFRS and Swiss GAAP [text block]	Note 35 The consolidated The Swiss Financial IFRS Accounting Standards and Swiss “Accounting – banks” recognition and FINMA governing true and fair view financial statement reporting 1. Consolidation Under GAAP, but investments measured at the lower of cost or market 2. Classification and measurement of financial assets Under comprehensive model within which the instruments are accounted for in cost, even form of securities for sale, and equity instruments with no permanent Financial investments at the lower of gains or Other income from ordinary activities. Equity Non-consolidated investments recorded in the Impairment of investments Reversals of impairments up to the original cost amount and realized gains or losses upon disposal of the investment are recorded as Extraordinary income / Extraordinary expenses . 3. Fair value option applied to financial liabilities Under IFRS Instruments for which the fair value option is applied are accounted for at FVTPL. The attributable to Other comprehensive Retained earnings . The fair value option is applied primarily to issued structured certain payables under repurchase agreements and cash collateral on securities lending agreements, amounts due under unit-linked investment contracts, and brokerage Under Swiss contract and fair value Net trading income . 4. Allowances and provisions for credit losses Swiss GAAP permit use on an expected credit loss (ECL) model. UBS has chosen to the ECL scope of both frameworks, IFRS Accounting Standards For the small residual IFRS Accounting Standards due to classification differences, – For exposures for which Pillar 1 internal ratings-based models are applied to measure credit risk, ECL is determined by the regulatory expected loss (EL), with an the next control” – For exposures portfolio approach for the entire portfolio. 5. Hedge accounting Under IFRS Accounting portion of statement when hedged item attributable to the hedged risk is reflected in the measurement of the hedged item and is recognized in the income statement portion of the fair value change of a derivative on the balance sheet as Other assets Other liabilities . The carrying amount of the hedged item designated in fair value hedges is not adjusted for fair value changes attributable 6. Business combinations, goodwill and intangible assets Under IFRS Accounting Standards, by Business . combination statement. Under Goodwill and intangible assets longer 10 impairment. transferred, business, e.g. for expected restructuring. Any remaining 7. Post-employment benefit plans Swiss GAAP plans, with the election made on a plan-by-plan basis. UBS has elected to and Swiss statements. The are hybrid in benefit plans include savings, which are not considered under the used to determine the defined high-quality corporate bonds of the market in the respective pension plan country. The discount rate used in accordance with Swiss GAAP (i.e., the technical interest rate) is determined by the Pension Foundation Board based on the expected returns of the Board’s investment strategy. For defined benefit plans, IFRS Accounting Standards be recognized elected, changes GAAP. Swiss GAAP require statement. Swiss GAAP in accordance from pension asset required to contribute to the reduction of a pension deficit 8. Leasing Under (RoU) asset RoU asset liability unsecured borrowing prepayments, initial direct costs, any is depreciated over the shorter of the lease term or the Under underlying assets, are are recognized on General and basis over the lease term, which commences with control of the physical use of the asset. Lease incentives are treated as a reduction of rental expense and recognized on a consistent 9. Netting of derivative assets and liabilities Under IFRS Accounting Standards are (i) existence enforceable, counterparties; simultaneously. Under Swiss GAAP, are enforceable in the event of default, bankruptcy 10. Negative interest Under IFRS Accounting interest presented assets is presented 11. Extraordinary income and expense Certain non-recurring from the assets, are Standards.

MD&A - Risk management and cont

MD&A - Risk management and control	12 Months Ended
	Dec. 31, 2023
MDA Risk Management And Control [Line Items]
Disclosure Of Financial Risk Management Explanatory	Credit risk : the risk of loss resulting from the failure of a client or counterparty contractual obligations toward UBS. This includes Settlement risk: security versus cash) where we must deliver without we will receive the consideration. Loan underwriting risk: that are intended for further distribution. Step-in risk: that is facing stress in the absence of, or in excess of, support. Market risk market variables. Market variables include observable rates, equity prices, credit spreads and commodity (including that may be unobservable or only indirectly observable, includes issuer risk and investment risk. Issuer risk: securities or derivatives referencing the issuer was subject to Investment risk: Liquidity risk: unexpected current and forecast cash flows and collateral operations or the financial condition of the Funding risk: the market on an unsecured (or even secured) basis at proposed commitments, firm’s current business and desired strategy. The Board of the Group and oversees the Group’s risk profile and Group’s risk appetite methodology. The its concerns and expectations pertaining the effectiveness of whistleblowing procedures and the external and The Group Executive Board (the control framework in the Group, managing the risk profile The authority over divisions and Group functions. The business division Presidents and Group functional business divisions and Group functions, including controlling the The regional Presidents ensure cross-divisional any regional activities and issues that may give rise to actual The Group framework (including risk climate risks. This includes risk measurement and transactions, delegated to the Group CRO. The Group control framework (including taxonomies and risk appetite) for non-financial risks, as well as implementing control frameworks for these risks. The Group Chief Financial Officer (the Group CFO) is responsible for transparency of the planning and reporting. management, (mergers The technology services, employees, and providing Group-wide data governance. The Group General Counsel manages the Group’s legal affairs, ensuring effective and timely assessment of legal matters impacting the Group or its businesses, and managing and The Head human resources objectives, supplies real . The Group principles consistent execution of integration plans and milestones. GIA independently information. GIA also assesses risk appetite, with legal and regulatory requirements also has a functional reporting line to the BoD Audit Committee. Some of these roles and responsibilities are replicated for significant entities oversee and control which complements the Group’s risk management and control We apply a concentrations. Risks that are include generally developed by dedicated units within control Risk concentrations may exist where one or several positions within in significant losses relative impact is a critical component of our risk management and For financial risks, we consider a number of elements, such and the sensitivity of positions to changes in the underlying risk factors. Also of the markets risk-mitigating factors. This includes an the hedge might be traded. Particular risk is defined as a positive correlation between the size of the exposure and the likelihood of a loss. Risk on risk is when a position and its risk mitigation can be impacted by the same For non-financial risks, risk concentrations may result from, for example, a single operational risk issue that is large on its own (i.e., it has or related risk issues that may link together to create Risk Governance, and assessed to do that emerge in a stressed environment differ markedly from those Main sources of credit risk – Global Wealth and hedge real assets such as ships and aircraft, as well lending and other unsecured lending. – A substantial secured therefore depends on the performance of the Swiss economy and – The Derivatives trading and securities financing are and gives rise to temporary concentrated exposure. – Credit risk with residential trading portfolio with lending against securities collateral Overview of measurement, monitoring and management – Credit risk exposure at default (EAD) and loss given default (LGD). Limits are established for individual counterparties and groups of approved by the Board of Directors and divisional CROs, based on risk exposure amounts, internal credit rating – Limits apply not only to the current outstanding exposure of traded products. – The Investment Bank monitoring, measurement and limit framework distinguishes between held to maturity (take-and-hold exposures) and those intended – We use models and business division levels, and to establish portfolio limits. – Credit risk concentrations can arise if clients are engaged or have affected by changes in economic, political or other conditions. To avoid credit risk concentrations, we establish limits / operational exposure, country risk and specific product exposures. Counterparty credit SFTs, out basis. over the with frameworks are also used to control overall exposure to specific sectors. to senior management. Trading in OTC derivatives are not used, we have clearly defined under bilateral allow for initial margin is taken to cover some or all taken to settle way collateral agreements securities when the or uncleared OTC derivatives and resulting in lower close-out risk over time. We hedging. We modifying Swiss mortgage loans. The model’s two key factors The value we assign to each property is based on the lowest purchase price, an asset value for IPRE, and, in some cases, We similarly apply portfolio, mortgage types, such type, loan size, and 45 – 80 %. In addition to LTV, other credit risk part of our underwriting guidelines. A risk limit framework is applied to set segments, such to senior set up to mortgage underwriting and documentation requirements. For our mortgage underwriting guidelines with regional variations to allow for underwriting guidelines interest commercial real estate repayment strategy property 30 % to 70 %, depending on the type supported by personal guarantees of stress scenarios to ensure that exposures remain within Lombard loans are financial securities are transferable securities, such as security provides a market. To We derive lending securities are calculated to cover a possible adverse change in market value level. Less-liquid or more volatile collateral will typically have We assess across single securities, reduced accordingly. We use single-name credit other instruments to actively manage credit risk. The aim is to reduce concentrations of risk from specific counterparties, sectors or portfolios and, for CCR, the profit We have when proxy exposures. Buying credit protection limit exposures to credit exposures to the lending portfolio, this includes monitoring mismatches maturity protection. Mismatches are routinely reported to credit officers We have developed tools and models to estimate future credit losses that may be implicit in our current Exposures to individual counterparties are measured using three generally accepted parameters: PD, EAD and LGD. For a given credit facility, the product of these three parameters results basis for the advanced internal ratings-based (A credit risk measures of EL, statistical loss and stress loss. Internal UBS rating scale and mapping of external ratings Internal UBS rating 1-year PD range in % Description Moody’s Investors Service mapping S&P mapping Fitch mapping 0 and 1 0.00–0.02 Investment grade Aaa AAA AAA 2 0.02–0.05 Aa1 to Aa3 AA+ to AA– AA+ to AA– 3 0.05–0.12 A1 to A3 A+ to A– A+ to A– 4 0.12–0.25 Baa1 to Baa2 BBB+ to BBB BBB+ to BBB 5 0.25–0.50 Baa3 BBB– BBB– 6 0.50–0.80 Sub-investment grade Ba1 BB+ BB+ 7 0.80–1.30 Ba2 BB BB 8 1.30–2.10 Ba3 BB– BB– 9 2.10–3.50 B1 B+ B+ 10 3.50–6.00 B2 B B 11 6.00–10.00 B3 B– B– 12 10.00–17.00 Caa1 to Caa2 CCC+ to CCC CCC+ to CCC 13 >17 Caa3 to C CCC- to C CCC- to C Counterparty is in default Default Defaulted D D In line with the due; (ii) it is subject to restructuring proceedings, where tenor, to payment; or (iv) there is other evidence that payment Default and credit-impaired UBS purposes. defaulted when days for certain exposures in private clients for default 90-day criterion would bankruptcy, preferential terms (forbearance); to collateral. The latter may against a counterparty is defaulted on, generally all claims against An identified carrying amount following a risk event of the issuer or originated with a defaulted counterparty. Once a financial asset is classified as defaulted / credit-impaired (except PCI), past due credit-restructured, and there is transfer back to stages 1 or 2 can be triggered. However, If payment default is difficulties that we would otherwise rates, forbearance measure takes Forbearance supersede the preferential conditions, our risk tolerance. Contractual conditions are within our usual risk tolerance, are not considered Main sources of market risk Market risks arise from both trading and non-trading – Trading market risks are primarily in the Investment Bank, Non-core and Legacy and, Management. In the Investment Bank, these risks well as securities and are credit, interest securities trading business. – Non-trading market personal banking and lending in our wealth management Banking business division, – Group Treasury assumes market risks the Group’s liquidity and funding profile, including high-quality – Equity and defined benefit pension schemes. Overview of measurement, monitoring and management techniques – Market business lines, reflecting the nature and magnitude of the – Management value-at-risk (VaR) measures exposures under and some by Market and Treasury Risk Control functions. – Our primary portfolio measures of market risk are liquidity-adjusted stress are approved by the Board of UBS Group excluding Credit Suisse, as set out below. – These measures are Our trading businesses are subject and volatility, quality. – Trading transaction expiries or changes not generally seek to distinguish in the trading portfolio between – Issuer risk is controlled by limits applied at the business division level based on jump-to-zero measures, which estimate maximum default exposure (the default event loss assuming – Non-trading management of consolidated capital activity. Our CRO Treasury function applies a holistic risk framework, setting the appetite for treasury-related risk-taking activities across the book, IRRBB) effect of foreign interest rate and foreign exchange our risk appetite framework. Equity and debt investments are management and stress-testing metrics. VaR (holding period) at an established level of set time horizon. We calculate VaR daily. VaR model, subsequently quantifies the profit credit, approach. UBS Group excluding Credit Suisse uses exponentially weighted two-year window. Modeling idiosyncratic and specific historical simulation possible, Credit Suisse uses historical simulation to model specific risk; however, and Credit Suisse rely upon Suisse simulates idiosyncratic returns through a Monte Carlo simulation, returns distribution of idiosyncratic Credit Suisse VaR Correlations among returns, stationarity properties of proportional or Suisse and weekly for Credit Suisse. Risk factor office systems, products that Credit Suisse and Credit Suisse use VaR weighted assets (RWA), management purposes, risk limits are established and exposures 95 % confidence level for UBS Group excluding Credit 98 % for Credit Suisse, the risks capital 99 % period. To calculate a 10-day holding period VaR, we use Additionally, the portfolio populations VaR positions. For instead under the securitization approach for regulatory We also regulatory 99 %). For SVaR, both UBS Group excluding Credit Suisse and Credit stress from a historical a week. Management value-at-risk (1-day, 95% confidence, 5 years of historical data) of our business divisions and Group Items excluding Credit Suisse components by general market risk type 1 For the year ended 31.12.23 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 3 9 3 1 1 Max. 19 21 19 10 10 Average 9 12 6 2 3 31.12.23 11 19 7 2 3 Total management VaR 7 25 15 19 Average (per business division and risk type) Global Wealth Management 1 2 1 2 0 1 2 0 0 Personal & Corporate Banking 0 0 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 5 23 14 18 9 12 5 2 3 Non-core and Legacy 1 2 1 1 0 1 1 0 0 Group Items 3 6 4 5 1 4 3 1 0 Diversification effect 2,3 (6) (7) (1) (5) (4) (1) 0 For the year ended 31.12.22 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 2 8 4 2 2 Max. 17 18 9 11 7 Average 6 10 5 3 3 31.12.22 6 10 4 3 3 Total management VaR 6 18 11 9 Average (per business division and risk type) Global Wealth Management 1 2 1 1 0 1 1 0 0 Personal & Corporate Banking 0 0 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 6 17 10 8 6 9 5 3 3 Group Functions (including Non-core and Legacy Portfolio) 3 5 4 5 1 4 3 1 0 Diversification effect 2,3 (5) (5) (1) (3) (4) (1) 0 Management value-at-risk (1-day, 98% confidence, 2 years of historical data) of the Credit Suisse components of our business divisions and Group Items by general market risk type 1,4 For the year ended 31.12.23 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 9 10 13 0 0 Max. 17 40 34 5 3 Average 13 17 20 2 1 31.12.23 13 12 13 1 0 Total management VaR 20 46 29 21 Average (per business division and risk type) Global Wealth Management 2 16 10 2 1 1 10 0 0 Personal & Corporate Banking 0 1 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 0 1 0 0 0 0 0 0 0 Non-core and Legacy 5 18 36 23 19 13 13 17 2 1 Group Items 0 3 2 0 0 2 2 0 0 Diversification effect 2,3 (7) (1) (1) 2 (9) 0 0 1 Statistics at individual levels may not be summed to deduce the corresponding aggregate figures. business line or risk type, being driven time series, rendering invalid the simple summation of figures to arrive at the aggregate total. 3 As the minima and maxima for different business divisions and Group Items occur on different days, it is not meaningful to calculate a portfolio diversification effect. AG consolidated introduced respective risk type only, ignoring the cross-risk effects. This with no impact on the total management VaR. Actual realized market risk losses may differ – VaR is calibrated to a specified level of confidence and – The capture market risk of positions that cannot be closed out – In portfolios. – Effects sensitivities, calculations. – The choice of a quickly as time. Similarly, after periods for a period of time influenced by the length of the historical SVaR is subject longer datasets for a financial crisis is no to use that data. This approach We recognize metrics material completeness of risk our comprehensive stress-testing framework. We also have a framework to identify and quantify potential risks as risks not in VaR. The framework underpins these potential In the fourth quarter of the coverage from   No material changes were made to UBS Group excluding IRRBB arises Financial assets at fair issued measured at these positions may affect treatment. Our largest Management and Personal & Corporate Banking, as in Group Treasury. The inherent interest rate risks stemming from Global Wealth Management and Personal & Corporate Banking are generally duration assigned to equity, goodwill and real estate. This makes the netting possible, while leaving rate risk is mainly hedged with interest rate swaps, to the vast majority of which we apply hedge accounting. Short-term exposures and HQLA classified as Financial assets for on a mark-to-market basis. Long-term fixed-rate debt designated in fair value hedge accounting relationships. Risk management and governance IRRBB is measured using several metrics, the most – EVE sensitivity accounting treatment. e.g., VaR and stress scenarios, as well as the regulatory interest rate scenarios. These are measured and reported daily. The regulatory IRRBB It excludes the sensitivity from additional tier 1 (AT1) capital instruments (as per modeled interest rate duration assigned to equity, goodwill rate shock scenarios to its banking book positions to monitor its specific – Net horizon, which we implied forward rates and assuming constant business volumes The sensitivities are measured and reported monthly. We actively exposure at consolidated and significant legal entity levels. The independent governance. › Refer to “Group Internal Audit” in the “Corporate more information Key modeling assumptions The cash margins and Our external issuances are discounted using UBS’s senior debt curve, date. NII balance sheet structure and volumes, and considers The average repricing to protect by simulating and applying a real-world market rate We use agency mortgage-backed securities (MBSs) held in various liquidity portfolios of UBS Americas Holding LLC These scenarios. testing. Swiss mortgages and fixed-term deposits generally redemption penalties. The EVE sensitivity 30.1 m as of 31 December 2023, 25.0 m as of 31 December USD 4.9 m from AT1 exposure in and interest rate risk hedges of the recent The majority of our modeled 24.3 m (31 December 19.6 m) assigned estate, with the aim of generating a 17.6 m and USD 5.6 m are attributable to the US dollar and the Swiss franc portfolios, respectively 14.0 m and USD 4.8 m, respectively). In addition The “Parallel change in EVE of negative USD 5.7 bn, or 6.1 %, of our tier 1 capital (31 December 2022: negative USD 4.6 bn, or 7.9 %), which is well below the 15 % threshold as per the BCBS banking book. The decrease of USD 0.9 bn, or 0.9 % (31 December 2022: USD 0.4 bn, or 0.6 %), reflecting the fact that our banking book have a positive effect on NII, assuming a constant balance UBS also book’s specific risk profile. Net interest income sensitivity The main NII We IRRBB. This with various shocks of –200 and +200 basis points under the assumption Interest rate risk – banking book 31.12.23 USD m Effect on EVE 1 Effect on EVE 1 Scenarios CHF EUR GBP USD Other Total Additional tier 1 (AT1) capital instruments Total +1 bp (3.7) (0.6) 0.1 (26.0) 0.2 (30.1) 4.9 (25.2) Parallel up 2 (548.9) (119.3) 16.2 (5,027.2) (0.9) (5,680.2) 904.6 (4,775.5) Parallel down 2 561.8 124.3 (29.2) 5,216.0 2.8 5,875.7 (1,044.5) 4,831.3 Steepener 3 (305.3) (13.1) (11.9) (1,037.0) (33.8) (1,401.1) 93.4 (1,307.6) Flattener 4 189.6 (5.0) 14.0 (124.2) 30.8 105.2 109.6 214.8 Short-term up 5 (27.3) (39.4) 19.4 (2,171.3) 23.9 (2,194.7) 486.3 (1,708.4) Short-term down 6 26.5 41.8 (21.8) 2,312.1 (26.8) 2,331.9 (507.8) 1,824.1 31.12.22 USD m Effect on EVE 1 Effect on EVE 1 Scenarios CHF EUR GBP USD Other Total Additional tier 1 (AT1) capital instruments Total +1 bp (4.0) (0.7) 0.1 (20.4) (0.1) (25.0) 3.4 (21.6) Parallel up 2 (574.6) (117.0) 33.2 (3,944.3) (26.3) (4,629.1) 649.7 (3,979.4) Parallel down 2 642.3 148.1 (45.4) 4,074.9 21.9 4,841.7 (699.8) 4,141.9 Steepener 3 (257.0) (92.8) (28.2) (1,027.4) (3.3) (1,408.7) (46.8) (1,455.5) Flattener 4 145.4 74.1 32.6 94.4 (2.5) 344.0 189.9 533.9 Short-term up 5 (83.0) 34.3 42.2 (1,519.0) (13.8) (1,539.2) 438.6 (1,100.6) Short-term down 6 86.9 (33.1) (42.5) 1,658.5 13.4 1,683.1 (455.5) 1,227.6 1 Economic value increase. We make direct investments in a variety of entities and buy equity holdings in both listed and unlisted companies, with exchange companies via inception or to demonstrate that our interests align with those of investors. We also buy, and are sometimes required agreement or regulation to buy, The investments are generally intended For these reasons, However, such equity investments are subject to a different by business management senior management. They are risk appetite framework. As of 7.2 bn, of 4.8 bn was classified as Financial assets at fair value not held for 2.4 bn as Investments in associates . Debt investments classified 31 December 2023 were measured categorized as money market instruments and debt securities primarily held for statutory, The risk control framework applied to comprehensive exposures may be included They framework. Debt instruments value of USD 2.2 bn as of 31 December 2023, compared with USD 2.2 bn as of 31 December 2022.

MD&A - Capital management

MD&A - Capital management	12 Months Ended
	Dec. 31, 2023
MDA Capital Management [Line Items]
Disclosure Of Objectives Policies And Processes For Managing Capital Explanatory	An adequate level of internal assessment and regulatory requirements We regulatory requirements, is on achieving an optimal attribution and use of financial resources well as between our legal entities, while remaining within divisions projections, which are reflected The annual strategic It is based on an attribution of Group RWA and LRD internal limits to Limits and targets In the risk exposure in terms of capital-at-risk and the effect Reconciliation of equity under IFRS Accounting Standards to Swiss SRB common equity tier 1 capital USD m 31.12.23 31.12.22 Total equity under IFRS Accounting Standards 86,639 57,218 Equity attributable to non-controlling interests (531) (342) Defined benefit plans, net of tax (965) (311) Deferred tax assets recognized for tax loss carry-forwards (3,039) (4,077) Deferred tax assets for unused tax credits (97) Deferred tax assets on temporary differences, excess over threshold (64) Goodwill, net of tax 1 (5,750) (5,754) Intangible assets, net of tax (894) (150) Compensation-related components (not recognized in net profit) (2,186) (2,287) Expected losses on advanced internal ratings-based portfolio less provisions (713) (471) Unrealized (gains) / losses from cash flow hedges, net of tax 3,109 4,234 Own credit related to (gains) / losses on financial liabilities 1,291 (523) Own credit related to (gains) / losses on derivative financial instruments (89) (105) Prudential valuation adjustments (368) (201) Accruals for dividends to shareholders (2,240) (1,683) Transitional CET1 purchase price allocation adjustments, net of tax 4,316 Other 3 (29) Total common equity tier 1 capital 78,485 45,457 1 Includes goodwill related to significant investments in financial institutions of USD 20 m as of 31 December 2023 (31 December 2022: USD 20 m) presented on the balance sheet line Investments in associates. Our CET1 related to capital is provided capital” table. Our CET1 capital increased by USD 33.0 bn to USD 78.5 bn as of 31 December 2023, predominantly due to an operating profit before tax (excluding 1.0 bn, the acquisition of the in an increase of 34.9 bn as of the of USD 5.0 bn, net of tax), an increase in eligible 1.9 bn, primarily in connection purposes, 1.5 bn, USD 2.2 bn, current 1.6 bn, share 1.3 bn under amortization of 0.7 bn (net in compensation- and own shares-related components 0.3 bn. › Refer to “UBS shares” in this section for more information about Our loss-absorbing 1.0 bn to 13.9 bn, mainly instruments 3.5 bn effects. These increases were partly 3.0 bn equivalent of AT1 capital instruments as going concern capital when we issued notice of redemption Our total gone 60.1 bn to USD 107.1 bn as of 31 December and included 106.6 bn of TLAC-eligible

Summary of material accountin_4

Summary of material accounting policies (Policies)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Material Accounting Policies Descriptions [Line Items]
Basis of accounting	Basis of accounting The International Accounting Standards Board (the IASB), Disclosures marked as audited in the “Risk, capital, liquidity an integral part of the Financial Statements. These disclosures relate to requirements under IFRS 7, Financial Instruments: Disclosures , and IAS 1, Presentation of Financial Statements , and are not repeated in this section. The stated in Note 1b.
Critical accounting estimates and judgments	Critical accounting estimates and judgments Preparation of these Financial Statements under affect reported amounts of assets, liabilities, time they are encompass historical updating them as necessary. Changes in those may differ significantly from UBS’s estimates, which could result in The Statements: – provisional amounts of identifiable assets acquired and liabilities assumed for the acquisition of the Credit Suisse Group (refer to item 1 in this Note and to Note 2); – expected credit loss measurement (refer to item 2g in this Note – fair value measurement (refer to item 2f in this Note – income taxes (refer to item 6 in this Note and to Note – provisions and contingent liabilities (refer to item 10 in this – post-employment benefit plans (refer to item 5 in – goodwill (refer to item 9 in this Note and to Note – consolidation of structured entities (refer to item 1 in this Note
Consolidation	1) Consolidation and business combinations Consolidation The Financial presented as a all entities that activities of the returns. Consideration is given to all the current ability to direct the relevant activities of an entity when Subsidiaries, when control ceases. Control, or the lack thereof, is reassessed if facts and circumstances to one or more elements required to establish that control Critical accounting estimates and judgments Each individual entity is assessed for consolidation in line with the aforementioned consolidation principles. The assessment of control requires is unique for When carrying of the investee, as well as the substance of
Business combinations	Business combinations Business combinations are accounted Business Combinations . Under this method, any excess of the acquisition-date amounts of of the consideration the acquisition, with transaction costs expensed as assumed maximum of one year from the acquisition date (referred The amount of non-controlling acquiree’s identifiable net assets. Critical accounting estimates and judgments When complete information about all relevant facts and circumstances of the acquisition date is not practically available to UBS at the time when the initial acquisition accounting and subject to further measurement within one year from the acquisition date. In addition, the use of valuation techniques, in purchase consideration, thereby affecting the resulting goodwill
Financial instruments	2) Financial instruments a. Recognition UBS generally recognizes financial instruments when However, (applying settlement date accounting to all standard purchases UBS may act in a benefit plans satisfied, Statements. Client cash balances associated with derivatives clearing if, balances. b. Classification, measurement and presentation Financial assets Where the contractual (SPPI) on within a business model that has an objective of holding financial assets to collect contractual cash flows, or at fair value through other contractual cash flows and selling financial assets. All other those managed on a fair value basis, except for derivatives designated in certain hedge accounting relationships item 2j in this Note for more information). Business model assessment and contractual cash flow characteristics UBS particular business objective at the time an asset is recognized. In assessing whether contractual cash flows are SPPI, the Group considers whether the contractual terms of the financial asset instrument. This assessment includes contractual (ESG) triggers. Financial liabilities Financial liabilities measured at amortized cost Debt issued contain common equity tier 1 that a viability non-financial conversion feature with the US dollars, these conversion features are classified as equity and Share premium amortized cost debt host. When the legal bail-in mechanism for write-down of issued debt instruments, If a debt were to be written down or converted into equity in a future period, it would be partially or fully derecognized, with statement. Financial liabilities measured at fair value through profit or UBS designates certain issued debt instruments as financial liabilities at fair value through profit or loss, on the basis that such financial instruments cash flows of the instrument and Financial instruments instruments. Measurement and presentation After initial recognition, UBS classifies, measures and presents its financial assets and liabilities in accordance with IFRS 9, as described in the table below. Classification, measurement and presentation Financial assets classification Significant items included Measurement and presentation Measured at amortized cost This classification includes: – cash and balances at central banks; – amounts due from banks; – receivables from securities financing transactions; – cash collateral receivables on derivative instruments; – residential and commercial mortgages; – corporate loans; – secured loans, including Lombard loans, and unsecured loans; – loans to financial advisors; – debt securities held as high-quality liquid (HQLA). Measured at amortized cost using the effective interest method less allowances for expected credit losses (refer to items 2d and 2g in this Note for more information). The following items are recognized in the income statement: – interest income, which is accounted for in accordance with item 2d in this Note; – ECL and reversals; and – foreign exchange (FX) translation gains and losses. When a financial asset at amortized cost is derecognized, the gain or loss is recognized in the income statement. For amounts arising from settlement of certain derivatives, see below in this table. Measured at FVOCI Debt instruments measured at FVOCI This classification primarily includes debt securities held as HQLA. Measured at fair value, reported in Other comprehensive income , net of applicable income taxes, until such investments are derecognized. Upon derecognition, any accumulated balances in Other comprehensive income statement and reported within Other income. The following items, which are determined on the basis as for financial assets measured at amortized recognized in the income statement: – interest income, which is accounted for in accordance with item 2d in this Note; – ECL and reversals; and – FX translation gains and losses. Classification, measurement and presentation Financial assets classification Significant items included Measurement and presentation Measured at FVTPL Held for trading Financial assets held for trading include: – all derivatives with a positive replacement value, those that are designated and effective hedging instruments; and – other financial assets acquired principally for the purpose of selling or repurchasing in the near term, or that are part of a portfolio of identified financial instruments that are managed together and for there is evidence of a recent actual pattern of short- term profit taking. Included in this category are debt instruments (including those in the form of money market paper, loans) and equity instruments. Measured at fair value, income statement. Derivative assets (including derivatives that and effective hedging instruments) are generally presented as Derivative financial instruments , except those exchange-traded derivatives (ETD) and over-the-counter (OTC)-cleared derivatives that are legally settled on basis or economically net settled on a daily basis, are presented within Cash collateral receivables on derivative instruments. Changes in fair value, initial transaction costs, and gains and losses arising on disposal or redemption recognized in Other net income from financial instruments measured at fair value through , except interest income on instruments other than derivatives (refer to item 2d in this Note), interest on derivatives designated as hedging instruments of interest rate risk and forward points on certain short- and long-duration FX contracts acting as economic hedges, which are reported in Net interest income. Changes in the fair value of derivatives that designated and effective hedging instruments are presented either in the income statement or Other comprehensive income , depending on the type of hedge relationship (refer to item 2j in this Note for more information). Mandatorily measured at FVTPL – Other Financial assets mandatorily measured at FVTPL that not held for trading include: – certain structured instruments, certain commercial loans, and receivables from securities financing transactions that are managed on a fair value basis; – loans managed on a fair value basis, hedged with credit derivatives; – certain debt securities held as HQLA and managed fair value basis; – certain investment fund holdings and assets hedge delivery obligations related to cash-settled employee compensation plans; – brokerage receivables, for which contractual cash flows do not meet the SPPI criterion because the aggregate balance is accounted for as a single unit of with interest being calculated on the individual components; – auction rate securities, for which contractual cash do not meet the SPPI criterion because interest may reset at rates that contain leverage; – equity instruments; – assets held under unit-linked investment contracts. Classification, measurement and presentation Financial liabilities classification Significant items included Measurement and presentation Measured at amortized cost This classification includes: – demand and time deposits; – retail savings / deposits; – sweep deposits; – payables – non-structured debt issued; – subordinated debt; – commercial paper and certificates of deposit; and – cash collateral payables on derivative instruments. Measured at amortized cost using the effective interest method. When a financial liability at amortized cost is derecognized, the gain or loss is recognized in the income statement. Interest income generated from client deposits derecognized pursuant to certain deposit sweep is presented within Net interest income from financial instruments measured at fair value through and other . Measured at FVTPL Held for trading Financial liabilities held for trading include: – all derivatives with a negative replacement value (including certain loan commitments), that are designated and effective hedging instruments; and – obligations to deliver financial instruments, debt and equity instruments, that UBS has third parties but does not own (short positions). Measurement and presentation of financial liabilities classified at FVTPL follow the same principles financial assets classified at FVTPL, except that of change in the fair value of a financial liability designated at FVTPL that is attributable to changes UBS’s own credit risk is presented in Other comprehensive income Retained earnings reclassified to the income statement. Derivative liabilities (including derivatives that designated and effective hedging instruments) generally presented as Derivative financial instruments , except those exchange-traded and OTC-cleared derivatives that are legally settled on a daily basis economically net settled on a daily basis, which presented within Cash collateral payables on derivative instruments. Designated at FVTPL Financial liabilities designated at FVTPL include: – issued hybrid debt instruments, linked, credit-linked and rates-linked bonds or notes; – issued debt instruments managed on a fair basis; – certain payables from securities financing transactions; – amounts due under unit-linked investment the cash flows of which are linked to financial measured at FVTPL and eliminate an accounting mismatch; – brokerage payables, which arise in conjunction with brokerage receivables and are measured at FVTPL to achieve measurement consistency.
Loan commitments	Loan commitments commitments
Financial guarantee contracts	Financial guarantee contracts are incurred loss debt instrument.
Interest income and expense	d. Interest income and expense Interest calculating the effective interest rate (the EIR) for financial instruments (other than UBS estimates future cash flows considering all contractual terms of the the EIR applied to the gross carrying amount of the when a EIR to allowance. Upfront fees, including fees on loan commitments not measured at fair value where a loan is expected to be issued, and direct costs are and recognized over the expected life of the instrument Fees related does not retain a effective Net recognized over the life of the commitment or when syndication Interest expense expense, except when interest rates are negative,
Derecognition	e. Derecognition Financial assets UBS derecognizes a transferred financial all the risks and rewards of the asset or a significant part of the risks and or pledge the asset. Where transferred evidenced financial asset is retained, by the extent to which it is exposed to changes in the value Financial liabilities UBS discharged, canceled or expires. When an existing financial liability is exchanged for a new one from the same lender on substantially derecognized income statement. Certain OTC derivative counterparties on a daily basis represents a legal or economic settlement,
Fair value of financial instruments	f. Fair value of financial instruments UBS accounts for a significant portion date that would be participants in the principal market, or in the most advantageous Critical accounting estimates and judgments The use of valuation techniques, modeling assumptions and estimates of significant unobservable inputs participants would consider in estimating fair value, UBS‘s governance framework over fair value measurement is described in Note 21b, from changing significant unobservable inputs in
Allowances and provisions for expected credit losses	g. Allowances and provisions for expected credit losses ECL are receivables, undrawn portion of comm credit facilities, as UBS is exposed to credit risk because the borrower has the ability to draw down funds before UBS can take credit risk mitigation actions. Recognition of expected credit losses ECL are recognized on the following basis. – Stage 1 instruments: Maximum 12-month ECL ECL that would result occurring. – Stage 2 instruments: Lifetime ECL are to events over the no longer observed, the instrument will move back to stage – Stage 3 instruments: the occurrence Credit-impaired exposures they are expected to be fully recoverable through collateral – Changes in lifetime ECL since initial recognition are also PCI financial counterparty; Consistent with the business combination, acquired impaired are amount of the respective financial instruments below their acquisition All or part of a claim written off are generally credited to Credit loss expense / (release) . ECL are recognized in the income statement in Credit loss expense / (release) . A corresponding ECL allowance is reported as a decrease assets that Other comprehensive . For presented in Provisions. Default and credit impairment UBS applies counterparty classified as defaulted based on quantitative Measurement of expected credit losses IFRS 9 ECL reflect The method (LGD) and on the materiality of approach is applied that are point-in-time(PIT)-based material portfolios, PDs independent. For the purpose (A-IRB) models that and developed that consider the complexity, structure and risk profile of relevant portfolios PDs and LGDs parameters. All models that oversight processes. Probability of default: PD represents the probability the probability of default determined for the next 12 months and a lifetime PD represents the remaining lifetime industry and information. Exposure at default: EAD represents an estimate of considering expected repayments, interest payments and accruals, are considered through and the characteristics of the respective portfolios. Loss given default: LGD represents an estimate expected proceedings commonly expressed Estimation of expected credit losses Number of scenarios and estimation of scenario weights Determination especially To represented by risks, and for for economic or changes in the nature and severity of the underlying scenario The determined weights constitute not that the chosen particular narratives with the related Macroeconomic and other factors The range and historical information availability of purposes, UBS projects the relevant economic factors for to cycle-neutral PD and LGD for longer-term Factors relevant taken into account, with specific focus on Switzerland and For UBS, the following forward-looking macroeconomic variables represent the most relevant factors for ECL calculation: – gross domestic product (GDP) – unemployment rates, given their significant effect on private – house price indices, given their significant effect on mortgage – interest rates, given their significant effect on counterparties’ – consumer price and economic stability; and – equity indices, given that they are an important factor Scenario generation, review process and governance A team of economists, with involvement from a broad range The scenarios, IFRS 9 Scenario and Group may not be capable allowance. The framework, ratifies the decisions taken by the ECL Management ECL measurement period The period credit commitments and for which UBS has an obligation to extend credit. Additionally, some financial instruments include both an on-demand loan and a revocable undrawn commitment, where the client has estimate the defined contractual maturity date, are as one exposure. The exposure arising from with credit actions triggered when balances card limits, capped at 12 months for stage 1 balances, Customary master credit commitments. negative indicators. The risk Larger corporate facilities are not subject to RbM, but are reviewed has assessed these credit risk management practices and substantive period from the is exposed to reporting date. Significant increase in credit risk Financial instruments subject maximum 12 since initial recognition of the financial instrument, applying both Primarily, UBS forward-looking and scenario-weighted lifetime PD of an – at the reporting date; and – at inception of the instrument. If, based on UBS’s the instrument is transferred to stage 2 with lifetime ECL The threshold for those financial asset PIT applied are defined on a more granular level by interpolating SICR thresholds Internal rating at origination of the instrument Rating downgrades / SICR trigger 0–3 3 4–8 2 9–13 1 Irrespective of increased for an instrument if contractual payments specifically the Swiss instruments are trans before a and Global reclassified to stage 3, a one-year period is applied before Additionally, economic conditions, counterparties may be moved to a watch list, which is used as a secondary qualitative indicator for an sharing the same credit risk characteristics to take account In general, the overall SICR determination process does not certain monitoring processes stage 3 position. In exceptional cases, an individual adjustment and a transfer into stage 2 may be made to take account of specific facts. Credit risk different requirements are instrument-specific, such that maturing loans in stage 2 will migrate to stage 1 upon renewal irrespective of the actual credit risk at that time. risk-based determine what risk-mitigating actions may be warranted. Critical accounting estimates and judgments The calculation of ECL requires timing and the amount of ECL recognized. Determination of a significant increase in IFRS 9 Management Forum has been established to Scenarios, scenario weights and macroeconomic ECL reflect an unbiased looking Sounding Sessions, to determine whether any additional post-model ECL measurement period Lifetime ECL are generally callable master credit facilities, judgment is for credit card limits, capped at 12 months for stage 1 Modeling and post-model adjustments A number of affect ECL. The models are governed Management Forum and endorsed by the A sensitivity analysis covering key macroeconomic
Restructured and modified financial assets	h. Restructured and modified financial assets When payment default financial difficulties extension of maturity, Modifications result in an alteration of future contractual cash flows and can occur within UBS’s normal risk tolerance or as part financial asset being derecognition, any difference between gross carrying amount of the given financial asset is recognized
Offsetting	i. Offsetting UBS presents recognized simultaneously. transactions with various counterparties, exchanges and clearing In simultaneously, emphasis is all credit and liquidity exposure between the counterparties. This condition precludes offsetting substantial arrangements. Repurchase arrangements the settlement and payables in a single settlement process or cycle.
Hedge accounting	j. Hedge accounting The effectiveness discontinued. Voluntary discontinuation Fair value hedges of interest rate risk related to The amount hedging instrument. Fair value hedges of FX risk related to debt instruments The fair value change of the hedged item attributable item and foreign currency basis spread of cross-currency swaps designated as and accounted Other Equity . amounts are released to the income Discontinuation of fair value hedges Discontinuations for reasons which method. If the hedged item is derecognized, the unamortized fair value adjustment or deferred is recognized immediately in the income statement Cash flow hedges of forecast transactions Fair value gains or repricing Other Equity Interest from financial Interest expense affect profit transactions statement. Hedges of net investments in foreign operations Gains or losses Other comprehensive income Equity , while any gains (for example, the disposal of the foreign Equity the entity is reclassified to Other income . Interest Rate Benchmark Reform UBS continued with alternative to exist, no alternative risk-free Amendments to IFRS 16 (Interest Rate Benchmark Reform – Phase 2) , where applicable .
Fee and commission income and expenses	3) Fee and commission income and expenses UBS earns broad clients’ assets, custody services deal-contingent merger and acquisitions UBS recognizes requires services to be provided Consideration nature of UBS’s business, contracts that to include a e.g., judgment in allocating the consideration received across PIT services where the amount of revenue is known when the performance obligation is met. Fixed-over-time fees are recognized on a straight-line to customer’s performance period. UBS to contingencies beyond UBS’s control until such uncertainties UBS’s component or term nature of such contracts, UBS significant contract assets or liabilities. UBS presents expenses primarily in line with their nature in the income statement, differentiating between expenses that are directly attributable which Total Fee , personnel, general and administrative expenses, or depreciation and amortization, Operating expenses . For derivatives execution and in against the associated income collected from the given client.
Share-based and other deferred compensation plans	4) Share-based and other deferred compensation plans UBS recognizes service to affected by restructuring programs or mutually agreed termination provisions, recognition of such expense is accelerated to the who compensation expense is grant date. Share-based compensation plans Share-based compensation grant, taking transfer restrictions in effect beyond the vesting For equity-settled awards, incremental estimate of performance conditions. For equity-settled relate to a service or performance condition) do not result For cash-settled recognized equals the cash distributed. Other deferred compensation plans Compensation depending on expected to be paid under the equals the cash or the fair value of respective financial
Post-employment benefit plans	5) Post-employment benefit plans Defined benefit plans Defined benefit plans specify an amount of benefit factors, the present value of the of the Other comprehensive income . If the fair value of the plan’s assets is higher than the present value of the defined benefit obligation, the recognition of form of obligation or employer, and Critical accounting estimates and judgments The net defined benefit determined significantly alter the defined rate, expected movements in each significant assumption for Defined contribution plans A benefits are paid. UBS has no legal or constructive assets to pay is recognized when contribution. Prepaid payments is available.
Income taxes	6) Income taxes UBS is subject to the income operations. The Group’s provision for income taxes is composed of current and deferred taxes. Current income taxes represent taxes to be paid or refunded for the current period or previous periods Deferred tax assets amounts and periods. DTAs may also arise measured using reporting period and that will be in effect when such differences DTAs are recognized differences can extent that there are sufficient taxable temporary differences or there is convincing other evidence that sufficient taxable profit will be available against which the unused tax losses Deferred and current tax to the be settled net or realized simultaneously. Current and deferred taxes are recognized as income tax benefit or expense and deferred taxes recognized in relation to: (i) amount of effects Equity ); FVOCI; (iv) changes in fair value benefit plans; or (vi) above are recognized in Other comprehensive income Equity . UBS considered probable by value methods, the uncertainty will be resolved. Critical accounting estimates and judgments Tax the performance of remaining tax loss carry-forward period, and its future profitability and business plan forecasts is inherently subjective Forecasts are reviewed to prove statement. In addition, judgment is required the resolution of any income tax-related appeals and litigation.
Investment in associates	7) Investments in associates Interests in entities where UBS not have Typically, voting rights. Investments in associates are initially recognized at cost, and the after the date of acquisition to recognize the Group’s share of the investee’s losses. The net of the investment in the associate exceeds its recoverable
Property, equipment and software	8) Property, equipment and software Property, development costs are capitalized benefits calculated on a straight-line basis over an asset’s estimated Property, alongside goodwill and intangible assets as assets property that has a that would be currently required by a market participant to replace the service capacity of the asset. If such assets are no longer used, they are tested individually for impairment.
Goodwill and other separately identifiable intangible assets	9) Goodwill and other separately identifiable intangible Goodwill represents liabilities of each reporting period, of whether there carrying amount exceeds the recoverable amount of a Separately from goodwill, UBS recognizes identifiable intangible assets acquired in a business combination that were not previously recognized on a straight generating-unit level. Critical accounting estimates and judgments UBS‘s methodology for available to shareholders (typically estimated Standards, in order to reflect facts and circumstances specific to a cash-generating growth rate. Earnings available to and management. The key changes to those assumptions.
Negative goodwill	Negative goodwill, generally determined based on the difference between the (provisional) fair assets acquisition date.
Provisions and contingent liabilities	10) Provisions and contingent liabilities Provisions are Provisions, Contingent Liabilities , when: probable that an outflow of resources will be required to of the obligation can be made. The majority of UBS’s provisions relate to litigation, regulatory and similar matters, restructuring, and employee benefits. Restructuring provisions scope of the for employee benefits relate mainly measurement principles Provisions with this presentational approach, fair value of combination is also presented in Provisions . IAS 37 provisions at the balance sheet date. When conditions required to recognize a provision are not met, a contingent liability is disclosed, unless the likelihood of an outflow events, Contingent measured at fair value. Subsequently, they are measured at the higher be recognized in accordance with the requirements for provisions Critical accounting estimates and judgments Recognition of provisions often involves significant judgment in assessing the existence of an obligation that results from past events and in probability, the timing and the amount of any outflows of resources. This is particularly the case for litigation, regulatory and similar matters, which, due to their nature, are subject to many uncertainties, The amount of Management regularly provisions have been satisfied and to determine the
Foreign currency translation	11) Foreign currency translation Transactions spot exchange FVOCI, and closing exchange rate. Translation Other net income from fair value through profit or loss . Non-monetary items measured at historical cost are translated Upon consolidation, the closing exchange translated at Equity and reclassified longer controls Share between the historic reported Share Other and financial assets translation Retained earnings .
UBS Group AG shares held (treasury shares)	12) UBS Group AG shares held (treasury shares) UBS Group AG in Equity Treasury Equity The difference between the proceeds reported as Share premium .

Accounting for the acquisitio_2

Accounting for the acquisition of the Credit Suisse Group (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Business Combinations [Line items]
Determination of the purchase price consideration	Measure Credit Suisse Group ordinary shares outstanding, 12 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 of treasury shares USD 3.7 bn, based on the UBS Credit Suisse employees attributable to the service period completed on the date of acquisition.
Recognized amounts of indetifiable assets acquited and liabilities assumed	USD m Purchase price consideration, after consideration of share-based compensation awards 3,710 Credit Suisse Group net identifiable assets on the acquisition Assets As previously reported in the second quarter 2023 report Measurement period adjustments Reference number Revised Cash and balances at central banks 93,012 93,012 Amounts due from banks 13,590 13,590 Receivables from securities financing transactions measured at amortized 26,194 26,194 Cash collateral receivables on derivative instruments 20,878 20,878 Loans and advances to customers 261,839 (14,620) 2, 4 247,219 Other financial assets measured at amortized cost 13,440 (12) 2 13,428 Total financial assets measured at amortized cost 1 428,954 (14,632) 414,322 Financial assets at fair value held for trading 35,046 21,191 2, 3 56,237 Derivative financial instruments 62,162 62,162 Brokerage receivables 366 366 Financial assets at fair value not held for trading 61,305 (7,106) 3 54,199 Total financial assets measured at fair value through profit or loss 158,879 14,085 172,964 Financial assets measured at fair value through other comprehensive income 1 0 0 Investments in associates 1,657 (88) 1,569 Property, equipment and software 6,055 6,055 Intangible assets 1,287 1,287 Deferred tax assets 942 56 998 Other non-financial assets 6,892 6,892 Total assets 604,667 (579) 604,088 Liabilities Amounts due to banks 107,617 107,617 Payables from securities financing transactions measured at amortized cost 11,911 11,911 Cash collateral payables on derivative instruments 10,939 10,939 Customer deposits 183,119 183,119 Debt issued measured at amortized cost 110,491 110,491 Other financial liabilities measured at amortized cost 7,992 7,992 Total financial liabilities measured at amortized cost 432,070 432,070 Financial liabilities at fair value held for trading 5,711 5,711 Derivative financial instruments 66,091 1,691 2 67,782 Brokerage payables designated at fair value 316 316 Debt issued designated at fair value 44,909 44,909 Other financial liabilities designated at fair value 7,574 7,574 Total financial liabilities measured at fair value through profit or loss 124,601 1,691 126,292 Provisions and contingent liabilities 11,052 (1,107) 2, 4 9,945 Other non-financial liabilities 3,888 13 3,901 Total liabilities 571,611 598 572,209 Non-controlling interests (285) (285) Fair value of net assets acquired 32,771 (1,177) 31,594 Settlement of pre-existing relationships 135 135 Provisional negative goodwill resulting from the acquisition 28,925 (1,177) 27,748 1 Refer to Note 10 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)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Operating Segments [Line Items]
Disclosure Of Operating Segments Explanatory	USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 Negative goodwill 2 UBS For the year ended 31 December 2023 Total revenues 21,190 8,436 2,639 8,661 741 (833) 40,834 Negative goodwill 27,748 27,748 Credit loss expense / (release) 147 501 0 190 193 6 1,037 Operating expenses 17,454 4,787 2,321 8,515 5,290 440 38,806 Operating profit / (loss) before tax 3,589 3,148 318 (44) (4,741) (1,279) 27,748 28,739 Tax expense / (benefit) 873 Net profit / (loss) 27,866 Additional information Total assets 469,240 470,526 21,804 399,348 172,862 183,465 1,717,246 Additions to non-current assets 2,584 3,279 709 530 3,062 550 10,714 of which Credit Suisse 3 1,795 3,020 626 3 3,062 550 9,056 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 UBS For the year ended 31 December 2022 Total revenues 18,967 4,302 2,961 4 8,717 237 (622) 34,563 Credit loss expense / (release) 0 39 0 (12) 2 1 29 Operating expenses 13,989 2,452 1,564 6,832 104 (12) 24,930 Operating profit / (loss) before tax 4,977 1,812 1,397 1,897 131 (611) 9,604 Tax expense / (benefit) 1,942 Net profit / (loss) 7,661 Additional information Total assets 388,530 235,226 17,348 391,320 13,367 58,574 1,104,364 Additions to non-current assets 42 13 1 34 0 1,970 2,060 USD m Global Wealth Management Personal & Corporate Banking Asset Management Investment Bank Non-core and Legacy 1 Group Items 1 UBS For the year ended 31 December 2021 Total revenues 19,419 4,263 2,617 9,454 60 (419) 35,393 Credit loss expense / (release) (29) (86) 1 (34) 0 0 (148) Operating expenses 14,665 2,618 1,586 6,858 138 191 26,058 Operating profit / (loss) before tax 4,783 1,731 1,030 2,630 (79) (611) 9,484 Tax expense / (benefit) 1,998 Net profit / (loss) 7,486 Additional information Total assets 5 395,235 225,370 25,639 346,431 25,153 99,354 1,117,182 Additions to non-current assets 56 16 1 30 0 1,989 2,091 1 As of or for the year ended 31 December 2023, Non-core and Legacy (previously reported within Group Functions) became a separate reportable segment and Group Functions has been renamed Group Items. Prior periods have been revised to reflect these changes. refer to Note 2. 4 Includes an USD 848 m gain in Asset resources from Group Items to the business divisions, with prospective effect. If the new methodology had been applied as of 31 December 2021, balance sheet assets allocated to business divisions would have been USD 26 bn higher, of which USD 14 bn would have related to the Investment Bank.
Disclosure Of Geographical Areas Explanatory	Total non-current assets 31.12.23 31.12.22 31.12.21 USD bn Share % USD bn Share % USD bn Share % Americas 1 9.4 34 8.9 46 9.0 44 Asia Pacific 1.7 6 1.5 8 1.5 7 Europe, Middle East and Africa (excluding Switzerland) 3.3 12 2.9 15 2.9 14 Switzerland 13.3 48 6.3 32 7.1 35 Global 0.0 0 0.0 0 0.0 0 Total 27.7 100 19.7 100 20.5 100 1 Predominantly related to the USA.

Net interest income and other i

Net interest income and other income from fair value changes on financial instruments (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Net Interest Income And Other Net Income From Financial Instruments Measured At Fair Value Through Profit Or Loss Tables [Line Items]
Disclosure Of Net Interest Income And Other Net Income From Financial Instruments Measured At Fair Value Through Profit Or Loss Tables Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Net interest income from financial instruments measured 3,770 1,403 1,431 Other net income from financial instruments measured 1 11,583 7,517 5,850 Total net income from financial instruments measured at fair value through profit or loss and 15,353 8,920 7,281 Net interest income Interest income from loans and deposits 2 28,569 9,612 6,488 Interest income from securities financing transactions measured 3 3,948 1,378 513 Interest income from other financial instruments measured 1,187 545 284 Interest income from debt instruments measured at fair 103 74 115 Interest resulting from derivative instruments designated as cash (2,064) 173 1,133 Total interest income from financial instruments measured at amortized cost and fair 31,743 11,782 8,533 Interest expense on loans and deposits 4 15,011 2,579 523 Interest expense on securities financing transactions measured 5 1,968 1,089 1,102 Interest expense on debt issued 11,072 2,803 1,533 Interest expense on lease liabilities 166 92 102 Total interest expense from financial instruments measured at amortized cost 28,216 6,564 3,259 Total net interest income from financial instruments measured at amortized cost and fair 3,527 5,218 5,274 Total net interest income from financial instruments measured at fair value through profit or loss 3,770 1,403 1,431 Total net interest income 7,297 6,621 6,705 1 Includes net losses 4,843 m (net gains of 17,037 m in 2022 and 6,582 m in 2021). This financial liabilities designated at fair value excludes fair value changes on hedges related to financial liabilities designated at fair value, and foreign currency translation effects arising from translating foreign currency transactions into the liabilities designated at fair 2,045 m (net gains of 4,112 m and net losses 2,068 m in 2022 and notes issued by UBS’s Asset the financial assets hedging the unit-linked investment contracts, which are balances at central collateral payables on derivative instruments. due to banks, cash collateral payables on derivative instruments.

Net fee and commission income (

Net fee and commission income (Tables)	12 Months Ended
	Dec. 31, 2023
Net fee And Commission Income Tables [Line Items]
Disclosure Of Fee And Commission Income Expense Tables Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Underwriting fees 568 579 1,463 M&A and corporate finance fees 840 804 1,102 Brokerage fees 3,542 3,484 4,382 Investment fund fees 4,837 4,942 5,790 Portfolio management and related services 10,673 9,059 9,762 Other 3,306 1,920 1,874 Total fee and commission income 1 23,766 20,789 24,372 of which: recurring 15,911 14,229 15,410 of which: transaction-based 7,761 6,492 8,692 of which: performance-based 94 68 269 Fee and commission expense 2,195 1,823 1,985 Net fee and commission income 21,570 18,966 22,387 1 For the 13,753 m for Global 2,733 m for Personal 3,325 m for Asset Management, USD 3,955 m for the Investment 128 m for Group Items 128 m for Non-core and 12,990 m for Global Wealth USD 1,654 m for Personal 2,840 m for Asset 3,296 m for the 10 m for Group 0 m for Non-core 31 December 2021: USD 14,545 m for Global Wealth Management, USD 1,644 m for Personal & Corporate 3,337 m for Asset Management, USD 4,814 m for the Investment Bank, USD 33 m for Group Items and USD 0 m for Non-core and Legacy). For the year ended 31 December 2023, Non-core and Legacy (previously reported within Group Functions) has been renamed Group Items. Prior periods have been revised to reflect these changes.

Other income (Tables)

Other income (Tables)	12 Months Ended
	Dec. 31, 2023
Other Income Tables [Line Items]
Disclosure Of Other Operating Income Tables Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Associates, joint ventures and subsidiaries Net gains / (losses) from acquisitions and disposals of 1 24 148 (11) Net gains / (losses) from disposals of investments in associates 4 844 2 41 Share of net profits of associates and joint ventures (348) 3 32 105 Total (319) 1,024 135 Net gains / (losses) from disposals of financial assets measured 3 (1) 9 Income from properties 4 39 20 23 Net gains / (losses) from properties held for sale 12 24 100 5 Other 6 648 7 391 8 185 9 Total other income 384 1,459 452 1 Includes foreign exchange gains / (losses) reclassified from other comprehensive income disposals of subsidiaries and 848 m gain related to the 508 m share of proportionate losses reflected in the SIX Group profit and loss, of which USD 317 m reported in Personal and Corporate Banking and USD 190 m reported in Global Wealth Management. 5 Mainly relates to 160 m related to the 98 m in 2022 and 60 m in 2021). 174 m of mortgage servicing rights fee income 133 m gain on the sale of UBS’s business in Spain of USD 111 m (with the remaining amount disclosed 111 m related to a legacy litigation legacy bankruptcy claim, and gains of USD 98 m related to the repurchase of UBS’s own debt instruments (compared with losses of USD 60 m in 2021). 100 m from the sale of UBS’s domestic wealth management business in Austria.

Personnel expenses (Tables)

Personnel expenses (Tables)	12 Months Ended
	Dec. 31, 2023
Personnel Expenses Tables [Line Items]
Disclosure Of Employee Benefits Tables Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Salaries 1 10,997 7,045 7,339 Variable compensation 2 9,845 7,954 8,280 of which: performance awards 3,986 3,205 3,190 of which: financial advisors 3 4,549 4,508 4,860 of which: other 1,310 241 229 Contractors 334 323 381 Social security 1,473 944 978 Post-employment benefit plans 4 1,361 794 833 of which: defined benefit plans 847 437 470 of which: defined contribution plans 514 357 363 Other personnel expenses 890 621 576 Total personnel expenses 24,899 17,680 18,387 1 Includes role-based approach. It also information. Includes curtailment gains 29 m for the year ended 20 m; for the year 80 m), which represent a reduction in the defined benefit obligation related to the Swiss pension plans resulting from a decrease in headcount following restructuring activities.

General and administrative ex_2

General and administrative expenses (Tables)	12 Months Ended
	Dec. 31, 2023
General And Administrative Expenses Tables [Line Items]
Disclosure Of General And Administrative Expense Tables Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Outsourcing costs 1,492 896 893 Technology costs 1,851 1,146 1,055 Consulting, legal and audit fees 1,619 592 540 Real estate and logistics costs 1,342 605 634 Market data services 684 419 417 Marketing and communication 408 265 242 Travel and entertainment 278 172 72 Litigation, regulatory and similar matters 1 809 348 911 Other 1,673 2 746 788 Total general and administrative expenses 10,156 5,189 5,553 1 Reflects the net increase, including USD 296 m attributable to setting up a provision related to onerous contracts.

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Income Taxes Tables [Line Items]
Disclosure Of Major Components Of Tax Expense Income Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Tax expense / (benefit) Swiss Current 883 730 680 Deferred 152 (15) 34 Total Swiss 1,035 715 714 Non-Swiss Current 684 718 884 Deferred (846) 509 400 Total non-Swiss (162) 1,227 1,284 Total income tax expense / (benefit) recognized in the income statement 873 1,942 1,998
Disclosure Of Details Of Major Components Of Tax Expense Income Explanatory	For the year ended USD m 31.12.23 31.12.22 31.12.21 Operating profit / (loss) before tax 28,739 9,604 9,484 of which: Swiss 32,300 4,425 3,334 of which: non-Swiss (3,561) 5,178 6,150 Income taxes at Swiss tax rate of 18.5 % for 2023, 18 % for 2022 and 18.5 % for 2021 5,317 1,729 1,755 Increase / (decrease) resulting from: Non-Swiss tax rates differing from Swiss tax rate (224) 284 234 Tax effects of losses not recognized 1,584 74 124 Previously unrecognized tax losses now utilized (401) (217) (179) Non-taxable and lower-taxed income 1 (5,730) (335) (278) Non-deductible expenses and additional taxable income 1,651 429 510 Adjustments related to prior years, current tax (87) (41) (40) Adjustments related to prior years, deferred tax (1) 13 (10) Change in deferred tax recognition (1,288) (217) (342) Adjustments to deferred tax balances arising from changes 26 0 (5) Other items 25 222 231 Income tax expense / (benefit) 873 1,942 1,998 1 The reconciling item for non-taxable and lower-taxed not result in any tax expense.
Disclosure Of Total Recognized And Unrecognized Deferred Tax Assets And Deferred Tax Liabilities Explanatory	USD m 31.12.23 31.12.22 Deferred tax assets 1 Gross Valuation allowance Recognized Gross Valuation allowance Recognized Tax loss carry-forwards 19,070 (16,078) 2,992 12,708 (8,720) 3,988 Unused tax credits 95 0 95 0 0 0 Temporary differences 11,159 (3,564) 7,595 5,814 (414) 5,400 of which: related to real estate costs capitalized for US purposes 2,703 0 2,703 2,485 0 2,485 of which: related to compensation and benefits 1,795 (471) 1,324 1,194 (175) 1,018 of which: related to cash flow hedges 765 (139) 626 947 0 947 of which: other 5,896 (2,954) 2,942 1,188 (238) 950 Total deferred tax assets 30,324 (19,642) 10,682 2 18,522 (9,134) 9,389 2 of which: related to the US 9,023 8,294 of which: related to other locations 1,659 1,095 Deferred tax liabilities Total deferred tax liabilities 325 236 1 After offset of DTLs, as applicable. 426 m (31 December 2022: USD 471 m) in respect of entities that incurred losses in either year.
Disclosure Of Expiry Of Unused Tax Losses Explanatory	Unrecognized tax loss carry-forwards USD m 31.12.23 31.12.22 Within 1 year 342 231 From 2 to 5 years 10,839 2,184 From 6 to 10 years 7,114 11,106 From 11 to 20 years 1,818 1,610 No expiry 44,222 16,960 Total 64,335 32,091 of which: related to the US 1 12,354 13,350 of which: related to the UK 37,773 14,332 of which: related to other locations 14,208 4,409 1 Related to UBS AG’s US branch.

Financial assets at amortized_2

Financial assets at amortized cost and other positions in scope of expected credit loss measurement (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Financial Assets [Line Item]
Disclosure Of Credit Risk Exposure Explanatory	USD m 31.12.23 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 314,148 314,025 18 0 106 (48) 0 (26) 0 (22) Amounts due from banks 21,161 21,107 17 0 38 (12) (6) (1) 0 (5) Receivables from securities financing transactions measured at amortized cost 99,039 99,039 0 0 0 (2) (2) 0 0 0 Cash collateral receivables on derivative instruments 50,082 50,082 0 0 0 0 0 0 0 0 Loans and advances to customers 639,844 611,019 24,408 2,869 1,548 (1,698) (423) (289) (862) (123) of which: Private clients with mortgages 268,616 256,614 10,695 929 378 (209) (62) (97) (39) (11) of which: Real estate financing 97,817 92,084 5,367 270 97 (103) (41) (31) (21) (11) of which: Large corporate clients 30,084 25,671 3,182 700 532 (575) (105) (70) (312) (89) of which: SME clients 25,957 22,155 2,919 754 129 (402) (71) (42) (277) (13) of which: Lombard 156,353 156,299 3 50 0 (41) (13) (11) (17) 0 of which: Credit cards 2,041 1,564 438 39 0 (42) (6) (11) (24) 0 of which: Commodity trade finance 5,727 5,662 25 22 18 (130) (18) (1) (111) 0 of which: Ship / aircraft financing 9,214 8,920 273 4 17 (51) (48) (3) 0 (1) of which: Consumer financing 2,982 2,795 92 38 57 (59) (22) (17) (20) 0 Other financial assets measured at amortized cost 65,498 64,311 968 158 61 (151) (41) (10) (94) (5) of which: Loans to financial advisors 2,615 2,422 79 114 0 (49) (4) (1) (44) 0 Total financial assets measured at amortized cost 1,189,773 1,159,583 25,410 3,027 1,753 (1,911) (473) (326) (956) (156) Financial assets measured at fair value through other comprehensive income 2,233 2,233 0 0 0 0 0 0 0 0 Total on-balance sheet financial assets in scope of ECL requirements 1,192,006 1,161,816 25,410 3,027 1,753 (1,911) (473) (326) (956) (156) of which: Credit Suisse 2 443,354 433,789 6,935 878 1,753 (855) (277) (109) (314) (156) 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 46,191 44,487 1,495 151 58 (73) (28) (22) (23) 0 of which: Large corporate clients 9,267 8,138 1,023 89 17 (31) (11) (13) (7) 0 of which: SME clients 2,839 2,469 337 31 2 (14) (4) (5) (5) 0 of which: Financial intermediaries and hedge funds 22,922 22,876 46 0 0 (12) (8) (3) 0 0 of which: Lombard 5,045 5,045 0 0 0 (1) 0 0 (1) 0 of which: Commodity trade finance 2,037 2,027 9 0 0 (1) (1) 0 0 0 Irrevocable loan commitments 91,643 87,080 4,297 218 48 (178) (117) (51) (14) 4 of which: Large corporate clients 50,696 46,708 3,881 59 48 (149) (94) (41) (12) (2) Forward starting reverse repurchase and securities borrowing agreements 18,444 18,444 0 0 0 0 0 0 0 0 Unconditionally revocable loan commitments 163,256 160,456 2,654 146 0 (95) (78) (17) 0 0 of which: Real estate financing 15,846 15,033 813 0 0 (14) (11) (3) 0 0 of which: Large corporate clients 17,139 16,678 454 8 0 (23) (17) (6) 0 0 of which: SME clients 11,658 11,253 375 29 0 (38) (33) (5) 0 0 of which: Lombard 77,618 77,618 0 1 0 0 0 0 0 0 of which: Credit cards 10,458 9,932 522 4 0 (10) (8) (2) 0 0 Irrevocable committed prolongation of existing loans 4,608 4,593 11 4 0 (4) (4) 0 0 0 Total off-balance sheet financial instruments and other credit lines 324,141 315,060 8,456 519 106 (350) (226) (90) (37) 3 Total allowances and provisions (2,261) (700) (416) (993) (153) of which: Credit Suisse 2 187,519 183,235 3,894 285 106 (1,018) (392) (143) (330) (153) 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 31.12.22 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 Amounts due from banks 14,792 14,792 1 0 (6) (5) (1) 0 Receivables from securities financing transactions measured at amortized 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 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 2,239 2,239 0 0 0 0 0 0 Total on-balance sheet financial assets within the scope of ECL requirements 729,807 712,078 16,044 1,685 (889) (154) (199) (537) Total exposure ECL provisions Off-balance sheet (within the 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 Committed unconditionally revocable credit lines 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 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 measured at amortized cost represents the total gross exposure net of the respective
Disclosure Of Coverage Ratios Explanatory	31.12.23 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 268,825 256,675 10,792 968 389 8 2 90 6 399 283 Real estate financing 97,920 92,124 5,398 290 108 11 4 57 7 713 980 Total real estate lending 366,745 348,800 16,190 1,258 497 9 3 79 6 472 434 Large corporate clients 30,660 25,775 3,252 1,012 620 188 41 215 60 3,083 1,429 SME clients 26,359 22,226 2,961 1,031 142 153 32 141 45 2,689 893 Total corporate lending 57,019 48,001 6,213 2,042 762 172 37 180 53 2,884 1,329 Lombard 156,394 156,312 15 67 0 3 1 7,616 2 2,487 0 Credit cards 2,083 1,571 449 63 0 200 40 253 87 3,801 0 Commodity trade finance 5,858 5,681 26 133 18 223 32 365 34 8,333 6 Ship / aircraft financing 9,265 8,968 276 4 17 56 54 99 55 0 315 Consumer financing 3,041 2,817 110 58 57 195 79 1,559 135 3,422 7 Other loans and advances to customers 41,136 39,293 1,419 105 320 21 10 39 11 3,981 0 Loans to financial advisors 2,665 2,426 80 159 0 185 17 122 20 2,793 0 Total other lending 220,442 217,068 2,373 589 412 21 7 210 9 4,376 8 Total 1 644,206 613,869 24,777 3,889 1,671 27 7 117 11 2,329 737 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 9,782 9,505 261 15 0 6 5 27 6 40 0 Real estate financing 17,107 16,281 826 0 0 9 8 44 9 0 0 Total real estate lending 26,889 25,786 1,088 15 0 8 7 40 8 40 0 Large corporate clients 77,103 71,524 5,357 157 65 26 17 111 24 1,217 242 SME clients 16,762 15,868 812 80 2 40 29 196 37 640 0 Total corporate lending 93,865 87,392 6,170 236 67 29 19 122 26 1,022 221 Lombard 86,173 86,173 0 1 0 0 0 0 0 0 0 Credit cards 10,458 9,932 522 4 0 10 8 35 10 0 0 Commodity trade finance 4,640 4,628 13 0 0 6 5 151 6 0 0 Ship / aircraft financing 1,053 1,053 0 0 0 26 26 0 26 0 0 Consumer financing 153 153 0 0 0 0 0 0 0 0 0 Financial intermediaries and hedge funds 42,578 42,325 253 0 0 3 3 142 3 0 0 Other off-balance sheet commitments 39,887 39,174 411 263 39 7 4 111 5 453 0 Total other lending 184,944 183,438 1,199 268 39 3 2 85 3 486 0 Total 2 305,697 296,616 8,456 519 106 11 8 107 10 717 0 Total on- and off-balance sheet 3 949,904 910,485 33,233 4,408 1,777 22 7 114 11 2,140 675 1 Includes Loans and advances repurchase and securities borrowing agreements. 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 repurchase and securities borrowing agreements.

Derivative instruments (Tables)

Derivative instruments (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Derivative Financial Assets And Liabilities [Line Items]
Disclosure Of Derivative Financial Assets And Liabilities Explanatory	31.12.23 31.12.22 USD bn Derivative financial assets Derivative financial liabilities Notional amounts related to derivative financial assets and liabilities 1,2 Other notional amounts 1,3 Derivative financial assets Derivative financial liabilities Notional amounts related to derivative financial assets and liabilities 1,2 Other notional amounts 1,3 Interest rate 55.6 52.9 3,524.1 20,073.9 39.8 37.5 2,080.3 11,255.4 of which: forwards (OTC) 4 0.1 0.1 122.4 2,532.2 0.2 0.0 72.3 792.7 of which: swaps (OTC) 37.7 32.6 1,331.6 16,601.3 25.2 19.8 607.1 9,728.6 of which: options (OTC) 17.7 20.0 2,066.7 14.2 17.5 1,392.5 of which: futures (ETD) 843.7 606.3 of which: options (ETD) 0.0 0.0 3.4 96.1 0.0 0.0 8.3 127.7 Credit derivatives 4.0 4.7 274.9 1.0 1.2 73.9 of which: credit default swaps (OTC) 3.8 4.4 269.6 0.9 1.0 71.0 of which: total return swaps (OTC) 0.1 0.3 3.7 0.1 0.2 1.2 Foreign exchange 78.7 89.9 6,913.3 180.4 85.5 88.5 6,079.8 40.1 of which: forwards (OTC) 18.7 24.1 2,152.0 26.5 28.6 1,763.6 of which: swaps (OTC) 52.2 58.1 3,809.7 178.7 49.6 50.4 3,233.0 38.4 of which: options (OTC) 7.7 7.6 944.4 9.3 9.2 1,073.2 Equity / index 35.5 41.4 1,396.8 95.0 22.2 26.1 885.8 63.4 of which: swaps (OTC) 6.6 9.2 273.3 5.3 6.6 217.5 of which: options (OTC) 4.9 9.0 245.2 2.8 4.4 140.6 of which: futures (ETD) 86.6 52.2 of which: options (ETD) 15.4 14.3 876.6 8.5 9.0 8.1 526.7 11.2 of which: client-cleared transactions (ETD) 8.3 8.2 5.1 7.0 Commodities 2.0 1.6 142.9 16.4 1.4 1.4 132.3 17.6 of which: swaps (OTC) 0.9 0.7 50.0 0.5 0.7 38.6 of which: options (OTC) 0.6 0.3 42.3 0.4 0.3 29.1 of which: futures (ETD) 13.7 16.4 of which: forwards (ETD) 0.0 0.0 31.5 0.0 0.0 47.7 of which: client-cleared transactions (ETD) 0.2 0.3 0.2 0.3 Other 5 0.4 1.6 116.5 0.2 0.1 49.8 Total derivative instruments, based on netting under IFRS Accounting Standards 6 176.1 192.2 12,368.5 20,365.8 150.1 154.9 9,301.8 11,376.5 of which: Credit Suisse 7 47.4 53.5 2,194.1 6,337.4 1 In cases where derivative financial instruments 2 Notional amounts of client-cleared ETD and OTC transactions through central clearing counterparties are not disclosed, as they have 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 payables on derivative instruments and was not material for any of the periods presented. measured at fair value through profit or derivative financial instruments presented net on insolvency of arrangements.

Property, equipment and softw_2

Property, equipment and software (Tables)	12 Months Ended
	Dec. 31, 2023
Notes Property Equipment And Software Tables [Line Items]
Disclosure Of Property Equipment Software Tables Explanatory	At historical cost less accumulated depreciation USD m Owned properties and equipment 1 Leased properties and equipment 2 Software Projects in progress 2023 3 2022 3 Historical cost Balance at the beginning of the year 11,587 4,459 9,944 1,136 27,127 27,113 Balance recognized upon the acquisition of the Credit Suisse 4 2,975 1,941 949 190 6,055 Additions 212 100 92 1,393 1,796 2,057 Disposals / write-offs 5 (428) (67) (1,295) 0 (1,791) (501) Reclassifications 1,392 6 1,728 (1,923) 1,203 (1,223) Foreign currency translation 972 174 309 68 1,523 (319) Balance at the end of the year 16,710 6,613 11,726 863 35,913 27,127 Accumulated depreciation Balance at the beginning of the year 7,425 1,714 5,699 14,839 14,225 Depreciation 830 722 1,469 3,022 2,033 Impairment 6 189 125 279 593 3 Disposals / write-offs 5 (420) (66) (1,296) (1,783) (497) Reclassifications 673 5 9 686 (761) Foreign currency translation 510 45 152 708 (164) Balance at the end of the year 9,207 2,545 6,312 18,064 14,839 Net book value Net book value at the beginning of the year 4,162 2,746 4,245 1,136 12,288 12,888 Net book value at the end of the year 7,503 4,068 5,414 863 7 17,849 12,288 of which: Credit Suisse 4 3,060 1,647 805 120 5,631 1 Includes leasehold relation to real estate, including offices, retail branches and sales offices. The total cash outflow for leases during 2023 was USD 878 m (2022: USD 614 m). Interest expense on lease liabilities is included within Interest expense from financial instruments material gains or losses arising from sale-and-leaseback transactions in 2023 assets. that are no longer used, for which the recoverable amount based on a 26 m for Global Wealth Management, USD 8 m for Personal & Corporate Banking, USD 6 m for Asset Management, USD 246 m for Group Items and USD 307 m for Non-core and Legacy. 542 m related to software and USD 322 m related to Owned properties and equipment.

Goodwill and intangible assets

Goodwill and intangible assets (Tables)	12 Months Ended
	Dec. 31, 2023
Notes Goodwill And Intangible Assets Tables [Line Items]
Disclosure of information for cashgenerating unit with significant amount of goodwill explanatory	Discount and growth rates Discount rates Growth rates In % 31.12.23 31.12.22 31.12.23 31.12.22 Global Wealth Management Americas 9.5 10.5 3.8 3.8 Global Wealth Management Switzerland and International 9.5 9.4 3.4 3.6 Asset Management 9.0 9.5 3.3 3.4
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill Explanatory	USD m Goodwill Intangible assets 1 2023 2022 Historical cost Balance at the beginning of the year 6,043 1,598 7,641 7,739 Acquisition of the Credit Suisse Group 2 0 1,287 1,287 0 Additions 0 6 6 0 Disposals 3 (10) (30) (40) (22) Foreign currency translation 10 102 112 (76) Balance at the end of the year 6,043 2,964 9,006 7,641 Accumulated amortization and impairment Balance at the beginning of the year 0 1,374 1,374 1,360 Amortization 134 134 26 Impairment / (reversal of impairment) 0 0 0 (1) Disposals 3 0 (30) (30) 0 Foreign currency translation 0 13 13 (11) Balance at the end of the year 0 1,491 1,491 1,374 Net book value at the end of the year 6,043 1,473 7,515 6,267 of which: Global Wealth Management Americas 3,712 36 3,748 3,740 of which: Global Wealth Management Switzerland and International 1,182 55 1,236 1,225 of which: Personal & Corporate Banking 0 908 908 0 of which: Asset Management 1,149 0 1,149 1,167 of which: Investment Bank 0 135 135 135 of which: Non-core and Legacy 0 339 339 0 1 Intangible assets Group, Inc. in 2000. that have been disposed of. Refer to Note 30 for more information.
Disclosure Of Assets With Infinite Useful Lives And Finite Useful Lives Intangible Assets Future Amortization Expense Explanatory	USD m Intangible assets Estimated aggregated amortization expenses for: 2024 211 2025 194 2026 181 2027 173 2028 161 Thereafter 551 Not amortized due to indefinite useful life 3 Total 1,473

Other financial and non-finan_3

Other financial and non-financial assets (Tables)	12 Months Ended
	Dec. 31, 2023
Other financial assets measured at amortized cost
DisclosureOf Other Assets Tables [Line Items]
Disclosure Of Other Assets Explanatory	USD m 31.12.23 31.12.22 Debt securities 45,057 44,594 Loans to financial advisors 2,615 2,611 Fee- and commission-related receivables 2,619 1,812 Finance lease receivables 6,288 1,315 Settlement and clearing accounts 338 1,175 Accrued interest income 3,163 1,259 Other 5,418 1 499 Total other financial assets measured at amortized cost 65,498 53,264 2 11,378 1 Predominantly includes cash collateral provided to exchanges and clearing houses to secure securities trading activity through those counterparties. the Credit Suisse Group.
Other non-financial assets
DisclosureOf Other Assets Tables [Line Items]
Disclosure Of Other Assets Explanatory	USD m 31.12.23 31.12.22 Precious metals and other physical commodities 5,930 4,471 Deposits and collateral provided in connection with litigation, 1 2,726 2,205 Prepaid expenses 2,080 1,076 Current tax assets 1,456 182 VAT, 1,327 1,286 Properties and other non-current assets held for sale 188 369 Other 2,342 578 Total other non-financial assets 16,049 10,166 of which: Credit Suisse 2 7,099 1 Refer to Note 18 for more information.

Customer deposits (Tables)

Customer deposits (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Customer Deposits Note Tables [Line Items]
Disclosure Of Customer Deposits Explanatory	USD m 31.12.23 31.12.22 Demand deposits 240,942 180,822 Retail savings / deposits 186,087 149,310 Sweep deposits 41,045 69,223 Time deposits 1 323,955 125,696 Total customer deposits 792,029 525,051 of which: Credit Suisse 2 236,049 1 Includes customer deposits in UBS AG Jersey Branch and Credit the Credit Suisse Group.

Debt issued designated at fai_2

Debt issued designated at fair value (Table)	12 Months Ended
	Dec. 31, 2023
Debt issued designated at fair value
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Designated Financial Liabilities At Fair Value Through Profit Or Loss	USD m 31.12.23 31.12.22 Issued debt instruments Equity-linked 1 60,573 41,901 Rates-linked 28,883 16,276 Credit-linked 7,730 2,170 Fixed-rate 20,541 6,538 Commodity-linked 3,844 4,294 Other 6,718 2,459 of which: debt that contributes to total loss-absorbing capacity 4,629 1,959 Total debt issued designated at fair value 2 128,289 73,638 of which: issued by UBS AG standalone with original maturity greater 3 73,544 57,750 of which: issued by Credit Suisse AG standalone with original maturity 3 29,948 of which: issued by Credit Suisse International standalone 3 1,471 1 Includes investment fund 37.2 bn as of 31 features. As of 31 December 2023, 100 % of the balance was unsecured in UBS AG 100 %), 100% was unsecured in Credit Suisse AG 65 % was unsecured in Credit Suisse AG International.

Debt issued measured at amortiz

Debt issued measured at amortized cost (Tables)	12 Months Ended
	Dec. 31, 2023
Notes And Debentures Issued [Member]
Disclosure Of Financial Liabilities [Line Items]
Disclosure Of Detailed Information About Borrowings Explanatory	USD m 31.12.23 31.12.22 Short-term debt 1 38,530 29,676 of which: Credit Suisse 1,245 Senior unsecured debt 147,547 59,965 of which: contributes to total loss-absorbing capacity (TLAC) 101,939 42,073 of which: issued by UBS AG standalone with original maturity greater 18,446 17,892 of which: issued by Credit Suisse AG standalone with original maturity 24,609 Covered bonds 5,214 0 Subordinated debt 17,644 16,017 of which: eligible as high-trigger loss-absorbing additional 10,744 9,882 of which: eligible as low-trigger loss-absorbing additional 1,214 1,189 of which: eligible as low-trigger loss-absorbing tier 2 capital 0 2,422 of which: eligible as non-Basel III-compliant tier 2 capital 538 536 Debt issued through the Swiss central mortgage institutions 27,377 8,962 Other long-term debt 1,506 Long-term debt 2 199,288 84,945 of which: Credit Suisse 3 45,640 Total debt issued measured at amortized cost 4,5 237,817 114,621 1 Debt with an original contractual maturity classification of debt bifurcated embedded derivatives, the debt, 100 % of the balance was unsecured as of 31 December 2023.

Provisions and contingent liabi

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

Other liabilities (Tables)

Other liabilities (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Other Liabilities Tables [Line Items]
Disclosure Of Other Financial Liabilities Measured At Amortized Cost Explanatory	USD m 31.12.23 31.12.22 Other accrued expenses 3,270 1,760 Accrued interest expenses 6,692 1,949 Settlement and clearing accounts 1,519 1,075 Lease liabilities 5,502 3,334 Other 3,868 1,457 Total other financial liabilities measured at amortized cost 20,851 9,575 of which: Credit Suisse 1 8,386 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Other Financial Liabilities Designated At Fair Value Explanatory	USD m 31.12.23 31.12.22 Financial liabilities related to unit-linked investment contracts 15,992 13,221 Securities financing transactions 7,416 15,333 Over-the-counter debt instruments and other 6,076 1,684 Total other financial liabilities designated at fair value 29,484 30,237 of which: Credit Suisse 1 5,114 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 31.12.23 31.12.22 Compensation-related liabilities 9,746 6,822 of which: Deferred Contingent Capital Plan 1,709 1,614 of which: financial advisor compensation plans 1,483 1,463 of which: other compensation plans 4,723 2,680 of which: net defined benefit liability 796 469 of which: other compensation-related liabilities 1 1,035 596 Current tax liabilities 1,460 1,071 Deferred tax liabilities 325 236 VAT, 1,120 592 Deferred income 635 235 Other 802 84 Total other non-financial liabilities 14,089 9,040 of which: Credit Suisse 2 4,672 1

Expected credit loss measurem_2

Expected credit loss measurement (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Financial Assets [Line Item]
Disclosure Of Credit Loss Expense Recovery Explanatory	Credit loss expense / (release) Performing positions Credit-impaired positions USD m Stages 1 and 2 Stage 3 Purchased Total For the year ended 31.12.23 Global Wealth Management 108 27 13 147 Personal & Corporate Banking 290 183 27 501 Asset Management 1 (1) 0 0 Investment Bank 110 78 2 190 Non-core and Legacy 78 91 25 193 Group Items 1 5 0 0 6 Total 593 378 67 1,037 For the year ended 31.12.22 Global Wealth Management (5) 5 0 Personal & Corporate Banking 27 12 39 Asset Management 0 0 0 Investment Bank 6 (18) (12) Non-core and Legacy 0 2 2 Group Items 1 1 0 1 Total 29 0 29 For the year ended 31.12.21 Global Wealth Management (28) (1) (29) Personal & Corporate Banking (62) (24) (86) Asset Management 0 1 1 Investment Bank (34) 0 (34) Non-core and Legacy 0 0 Group Items 1 0 0 0 Total (123) (25) (148) 1 Starting with the third quarter of 2023, Non-core and Legacy became a separate reportable segment and Group Functions has been renamed Group Items. Prior periods have been restated to reflect these changes.
Disclosure Of Key Macro Economic Scenario Weights Explanatory	Economic scenarios and weights applied Assigned weights in % ECL scenario 31.12.23 31.12.22 Asset price inflation 0.0 0.0 Baseline 60.0 60.0 Mild debt crisis 15.0 0.0 Stagflationary geopolitical crisis 25.0 25.0 Global crisis 0.0 15.0
Disclosure Of Key Macro Economic Variables Explanatory	Scenario assumptions One year Three years cumulative 31.12.23 Asset price inflation Baseline Mild debt crisis Stagflationary geopolitical crisis Asset price inflation Baseline Mild debt crisis Stagflationary geopolitical crisis Real GDP growth (% change) United States 4.0 0.1 (1.6) (4.8) 9.1 4.4 0.6 (4.4) Eurozone 3.0 0.5 (1.7) (5.6) 6.2 2.9 (0.1) (5.7) Switzerland 3.0 1.4 (1.2) (4.8) 6.6 4.4 0.3 (4.9) Consumer price index (% change) United States 2.5 2.3 (0.1) 10.0 8.1 7.1 2.3 15.8 Eurozone 2.3 2.0 (0.2) 9.6 7.4 6.1 1.8 14.8 Switzerland 2.1 1.5 (0.4) 5.8 6.2 4.3 0.8 10.7 Unemployment rate (end-of-period level, %) United States 3.0 4.4 6.3 9.2 3.0 4.4 7.7 11.8 Eurozone 6.0 6.9 8.2 10.6 6.0 6.8 9.0 11.8 Switzerland 1.6 2.3 2.9 4.1 1.5 2.3 3.8 5.0 Fixed income: 10-year government bonds (change in yields, basis points) USD 13 (82) (215) 270 37 (78) (155) 245 EUR 20 (90) (185) 225 58 (78) (140) 195 CHF 25 (41) (73) 195 63 (34) (28) 180 Equity indices (% change) S&P 500 20.0 15.3 (26.6) (51.5) 51.7 28.1 (12.2) (45.6) EuroStoxx 50 20.0 12.0 (26.4) (51.6) 46.6 22.9 (16.6) (47.2) SPI 15.0 4.6 (24.5) (51.6) 39.2 15.9 (11.2) (47.2) Swiss real estate (% change) Single-Family Homes 6.6 (1.5) (4.4) (18.5) 14.0 0.8 (3.0) (28.6) Other real estate (% change) United States (S&P / Case–Shiller) 8.1 0.6 (8.6) (20.0) 19.7 5.8 (5.2) (30.2) Eurozone (House Price Index) 7.0 0.6 (5.9) (8.4) 15.4 6.4 (5.2) (12.9) Scenario assumptions One year Three years cumulative 31.12.22 Asset price inflation Baseline Stagflationary geopolitical crisis Global crisis Asset price inflation Baseline Stagflationary geopolitical crisis Global crisis Real GDP growth (% change) United States 4.0 (0.3) (4.8) (6.4) 9.1 3.2 (4.4) (1.8) Eurozone 3.0 0.6 (5.6) (8.5) 6.2 2.5 (5.7) (8.3) Switzerland 3.0 0.7 (4.8) (6.7) 6.6 3.5 (4.9) (3.7) Consumer price index (% change) United States 2.5 2.6 10.0 (0.5) 8.1 6.5 15.8 1.2 Eurozone 2.3 5.0 9.6 (0.7) 7.4 9.6 14.8 (0.7) Switzerland 2.1 1.6 5.8 (1.8) 6.2 3.9 10.7 (1.6) Unemployment rate (end-of-period level, %) United States 3.0 3.9 9.2 10.0 3.0 5.3 11.8 9.4 Eurozone 6.0 7.0 10.9 11.9 6.0 7.1 12.2 13.0 Switzerland 1.7 2.3 4.3 4.4 1.5 2.6 5.1 4.9 Fixed income: 10-year government bonds (change in yields, basis points) USD 25 (6) 235 (326) 70 (13) 205 (291) EUR 20 48 250 (271) 58 45 220 (247) CHF 25 46 220 (210) 63 57 205 (160) Equity indices (% change) S&P 500 20.0 7.4 (51.5) (50.0) 51.7 22.8 (45.6) (27.9) EuroStoxx 50 17.0 17.2 (51.6) (50.0) 42.9 29.2 (47.2) (39.3) SPI 14.0 5.6 (51.6) (46.0) 37.9 19.3 (47.2) (32.9) Swiss real estate (% change) Single-Family Homes 6.6 1.1 (16.7) (19.9) 14.0 2.3 (32.9) (23.9) Other real estate (% change) United States (S&P / Case–Shiller) 7.8 (4.5) (12.8) (19.3) 19.1 (0.6) (35.8) (32.7) Eurozone (House Price Index) 7.0 (2.7) (8.4) (8.9) 15.4 2.0 (14.7) (17.5)
Disclosure Of Credit Risk Exposure Movement Explanatory	Development of ECL allowances and USD m Total Stage 1 Stage 2 Stage 3 PCI Balance as of 31 December 2022 (1,091) (259) (267) (564) 0 Acquisition of Credit Suisse AG portfolios (541) (541) 0 0 0 Net movement from new and derecognized transactions 1 14 (2) 9 7 0 of which: Private clients with mortgages (4) (7) 3 0 0 of which: Real estate financing 1 (2) 3 0 0 of which: Large corporate clients 18 8 3 7 0 of which: SME clients (2) (2) 0 0 0 of which: Other 1 1 0 0 0 (1) (1) 0 0 0 0 0 0 0 0 Remeasurements with stage transfers 2 (507) 42 (149) (400) 0 of which: Private clients with mortgages (12) 2 (3) (12) 0 of which: Real estate financing (35) 8 (27) (16) 0 of which: Large corporate clients (223) 17 (21) (220) 0 of which: SME clients (167) 6 (59) (115) 0 of which: Other (69) 8 (39) (38) 0 1 0 0 0 0 1 2 (1) 0 0 Remeasurements without stage transfers 3 17 58 12 14 (67) of which: Private clients with mortgages 3 1 16 (3) (11) of which: Real estate financing (1) 5 3 (1) (9) of which: Large corporate clients (42) (18) (1) (8) (16) of which: SME clients 65 31 1 44 (11) of which: Other (7) 39 (8) (18) (20) (37) 0 (15) 0 (22) (7) 1 0 (8) 0 Model changes 4 (22) (14) (8) 0 0 Movements with profit or loss impact 5 (1,037) (457) (136) (378) (67) Movements without profit or loss impact (write-off, FX and other) 6 (132) 17 (13) (50) (86) Balance as of 31 December 2023 (2,261) (700) (416) (993) (153) 1 Represents the derecognition of loans provisions related to changes in model inputs or assumptions, including changes in forward-looking macroeconomic conditions, changes in the exposure 4 Represents the change in the allowances and provisions related to changes in and methodology changes. uncollectible or forgiven and movements in foreign exchange rates. Development of ECL allowances and USD m Total Stage 1 Stage 2 Stage 3 Balance as of 31 December 2021 (1,165) (282) (220) (662) Net movement from new and derecognized transactions 1 (7) (21) 16 (2) of which: Private clients with mortgages (6) (6) 0 0 of which: Real estate financing (3) (5) 2 0 of which: Large corporate clients 8 (1) 11 (2) of which: SME clients (1) (1) 0 0 of which: Other (6) (8) 3 0 0 (2) 2 0 0 0 0 0 Remeasurements with stage transfers 2 (65) 20 (39) (46) of which: Private clients with mortgages (10) 3 (12) 0 of which: Real estate financing 7 (1) 8 0 of which: Large corporate clients (33) 16 (28) (21) of which: SME clients (23) 2 (2) (22) of which: Other (6) 1 (4) (3) 0 0 0 0 1 2 (1) 0 Remeasurements without stage transfers 3 13 (8) (27) 48 of which: Private clients with mortgages (12) 5 (18) 1 of which: Real estate financing 13 3 10 0 of which: Large corporate clients 32 (11) 2 41 of which: SME clients (6) (10) (9) 14 of which: Other (15) 5 (12) (8) (8) 0 (8) 0 (3) 3 (1) (6) Model changes 4 30 29 1 0 Movements with profit or loss impact 5 (29) 20 (49) 0 Movements without profit or loss impact (write-off, FX and other) 6 104 3 1 99 Balance as of 31 December 2022 (1,091) (259) (267) (564) 1 Represents the derecognition of loans or facilities on related to 4 Represents the change in the allowances and provisions related to changes in models and methodologies. and methodology changes. uncollectible or forgiven and movements in foreign exchange rates.
Disclosure Of Credit Risk Exposure Categories Explanatory	ECL stage 2 (“significant deterioration USD m Stage 2 of which: PD layer of which: watch list of which: ≥30 days past due On- and off-balance sheet (416) (221) (123) (71) of which: Private clients with mortgages (97) (69) (5) (22) of which: Real estate financing (35) (23) (2) (10) of which: Large corporate clients (133) (54) (77) (2) of which: SME clients (60) (27) (24) (10) of which: Lombard (11) 0 (11) 0 of which: Financial intermediaries and hedge funds (5) (4) 0 (1) of which: Loans to financial advisors (1) 0 0 (1) of which: Credit cards (13) 0 0 (13) of which: Consumer financing (19) (9) 0 (11) of which: Commodity trade finance (1) 0 (1) 0 of which: Other (40) (36) (4) (1)
Disclosure Of Maximum Exposure To Credit Risk Explanatory	Maximum exposure to credit risk 31.12.23 Collateral 1,2 Credit enhancements 1 Exposure to credit risk after collateral and credit enhancements USD bn Maximum exposure to credit risk Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral 3 Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at amortized cost on the balance sheet Cash and balances at central banks 314.1 314.1 Amounts due from banks 4 21.2 0.0 0.2 0.2 0.3 20.5 Receivables from securities financing transactions measured at amortized cost 99.0 0.0 95.6 2.8 0.7 Cash collateral receivables on derivative instruments 5,6 50.1 32.9 17.2 Loans and advances to customers 639.8 40.2 131.9 372.9 38.9 0.0 11.9 44.1 Other financial assets measured at amortized cost 65.5 0.1 0.8 0.1 5.7 58.8 Total financial assets measured at amortized cost 1,189.8 40.4 228.5 373.0 47.5 32.9 0.0 12.1 455.4 Financial assets measured at fair value through other comprehensive income – debt 2.2 2.2 Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL 1,192.0 40.4 228.5 373.0 47.5 32.9 0.0 12.1 457.6 of which: Credit Suisse 7 443.4 12.7 51.6 150.2 18.4 10.1 0.0 9.3 191.1 Guarantees 8 46.1 2.9 21.4 0.3 3.4 0.1 4.6 13.3 Irrevocable loan commitments 91.5 0.5 3.2 2.2 17.1 0.4 5.9 62.3 Forward starting reverse repurchase and securities borrowing agreements 18.4 18.4 0.0 Committed unconditionally revocable credit lines 163.2 20.3 58.5 17.6 6.2 4.4 56.2 Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL 319.2 23.7 101.6 20.1 26.6 0.0 0.5 14.8 131.8 of which: Credit Suisse 7 186.9 21.4 60.3 11.1 10.9 0.0 0.5 11.3 71.5 31.12.22 Collateral 1,2 Credit enhancements 1 Exposure to credit risk after collateral and credit enhancements USD bn Maximum exposure to credit risk Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral 3 Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at amortized cost on the balance sheet Cash and balances at central banks 169.4 169.4 Amounts due from banks 4 14.8 0.0 0.1 14.7 Receivables from securities financing transactions measured at amortized cost 67.8 0.0 64.5 2.4 0.9 Cash collateral receivables on derivative instruments 5,6 35.0 22.9 12.1 Loans and advances to customers 387.2 33.6 115.9 197.8 19.6 3.0 17.3 Other financial assets measured at amortized cost 53.3 0.1 0.5 0.0 1.3 51.3 Total financial assets measured at amortized cost 727.6 33.7 181.0 197.9 23.4 22.9 0.0 3.0 265.8 Financial assets measured at fair value through other comprehensive income – debt 2.2 2.2 Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL 729.8 33.7 181.0 197.9 23.4 22.9 0.0 3.0 268.0 Guarantees 8 22.1 1.2 9.3 0.1 2.0 1.8 7.7 Irrevocable loan commitments 39.9 0.2 3.1 1.3 6.5 0.1 1.0 27.8 Forward starting reverse repurchase and securities borrowing agreements 3.8 3.8 0.0 Committed unconditionally revocable credit lines 41.4 0.2 8.2 6.0 6.2 0.5 20.2 Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL 107.2 1.6 24.4 7.5 14.7 0.0 0.1 3.3 55.7 1 Of which: USD 3,824 m for 31 December 2023 1,372 m) relates to total credit-impaired 237 m for 31 December 2023 2022: USD 113 m) to total off-balance sheet financial instruments and instruments, real estate and other funded and unfunded elements, the collateral is first allocated to the funded element. Credit Suisse applies a risk-based approach that generally prioritizes real estate collateral and prioritizes other collateral according to its liquidity profile. In the case of loan facilities with funded and or capital commitments from fund partners, leasing credit risk associated with these balances may be borne by those clients. these margin balances balance sheet. Refer to Note 22 for more information. certain overnight repurchase arrangement, UBS guarantees security interest in the cash or high-quality securities collateral that the clients place with the clearing house; therefore,
Disclosure Of Internal Credit Exposures Explanatory	Financial assets subject to credit risk by rating USD m 31.12.23 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total gross carrying amount ECL allowances Net carrying amount (maximum exposure to credit risk) Financial assets measured at amortized cost Cash and balances at central banks 251,462 61,936 627 0 43 128 314,197 (48) 314,148 of which: stage 1 251,462 61,936 627 0 0 0 314,025 0 314,025 of which: stage 2 0 0 0 0 43 0 43 (26) 18 of which: PCI 0 0 0 0 0 128 128 (22) 106 Amounts due from banks 1,081 15,454 2,215 1,589 792 43 21,174 (12) 21,161 of which: stage 1 1,081 15,453 2,210 1,589 780 0 21,113 (6) 21,107 of which: stage 2 0 0 5 0 12 0 18 (1) 17 of which: PCI 0 0 0 0 0 43 43 (5) 38 Receivables from securities financing transactions 45,838 30,171 6,397 15,544 1,091 0 99,041 (2) 99,039 of which: stage 1 45,838 30,171 6,397 15,544 1,091 0 99,041 (2) 99,039 Cash collateral receivables on derivative instruments 8,009 30,334 6,425 5,117 198 0 50,082 0 50,082 of which: stage 1 8,009 30,334 6,425 5,117 198 0 50,082 0 50,082 Loans and advances to customers 6,428 288,117 180,889 119,191 41,557 5,360 641,542 (1,698) 639,844 of which: stage 1 6,428 286,683 178,059 109,996 30,276 0 611,443 (423) 611,019 of which: stage 2 0 1,428 2,829 9,171 11,269 0 24,697 (289) 24,408 of which: stage 3 0 0 0 0 0 3,731 3,731 (862) 2,869 of which: PCI 0 6 0 24 12 1,629 1,671 (123) 1,548 Other financial assets measured at amortized cost 25,755 25,875 2,875 9,662 1,163 318 65,648 (151) 65,498 of which: stage 1 25,755 25,788 2,854 9,113 841 1 64,352 (41) 64,311 of which: stage 2 0 87 21 548 321 0 978 (10) 968 of which: stage 3 0 0 0 0 0 253 253 (94) 158 of which: PCI 0 0 0 0 1 64 66 (5) 61 Total financial assets measured at amortized cost 338,572 451,886 199,428 151,103 44,844 5,849 1,191,683 (1,911) 1,189,773 On-balance sheet financial instruments Financial assets measured at FVOCI – debt instruments 1,222 850 0 161 0 0 2,233 0 2,233 Total on-balance sheet financial instruments 339,794 452,736 199,428 151,264 44,844 5,849 1,193,916 (1,911) 1,192,006 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and Financial assets subject to credit risk by rating USD m 31.12.22 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total gross carrying amount ECL allowances Net carrying amount (maximum exposure to credit risk) Financial assets measured at amortized cost Cash and balances at central banks 168,525 877 0 0 56 0 169,457 (12) 169,445 of which: stage 1 168,525 877 0 0 0 0 169,402 0 169,402 of which: stage 2 0 0 0 0 56 0 56 (12) 44 Amounts due from banks 862 12,257 860 440 379 0 14,798 (6) 14,792 of which: stage 1 862 12,257 860 440 378 0 14,797 (5) 14,792 of which: stage 2 0 0 0 0 1 0 1 (1) 1 of which: stage 3 0 0 0 0 0 0 0 0 0 Receivables from securities financing transactions measured at amortized cost 27,158 15,860 8,870 15,207 721 0 67,816 (2) 67,814 of which: stage 1 27,158 15,860 8,870 15,207 721 0 67,816 (2) 67,814 Cash collateral receivables on derivative instruments 10,613 12,977 7,138 4,157 147 0 35,033 0 35,032 of which: stage 1 10,613 12,977 7,138 4,157 147 0 35,033 0 35,032 Loans and advances to customers 6,491 214,473 68,356 74,732 21,939 2,012 388,003 (783) 387,220 of which: stage 1 6,491 212,980 66,114 68,034 16,605 0 370,224 (129) 370,095 of which: stage 2 0 1,493 2,242 6,698 5,334 0 15,767 (180) 15,587 of which: stage 3 0 0 0 0 0 2,012 2,012 (474) 1,538 Other financial assets measured at amortized cost 29,011 16,632 447 6,600 450 210 53,350 (86) 53,264 of which: stage 1 29,011 16,630 427 6,317 336 0 52,721 (17) 52,704 of which: stage 2 0 2 20 283 114 0 419 (6) 413 of which: stage 3 0 0 0 0 0 210 210 (63) 147 Total financial assets measured at amortized cost 242,660 273,076 85,671 101,136 23,693 2,222 728,457 (889) 727,568 On-balance sheet financial instruments Financial assets measured at FVOCI – debt instruments 1,307 840 0 92 0 0 2,239 0 2,239 Total on-balance sheet financial instruments 243,966 273,916 85,671 101,228 23,693 2,222 730,696 (889) 729,807 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and
Disclosure Of Off Balance Sheet Positions By Rating Category Explanatory	Off-balance sheet positions subject to expected USD m 31.12.23 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total carrying amount (maximum exposure to credit risk) ECL provision Off-balance sheet financial instruments Guarantees 17,805 10,961 9,421 5,916 1,882 207 46,191 (73) of which: stage 1 17,805 10,922 9,310 5,054 1,398 0 44,487 (28) of which: stage 2 0 39 111 861 484 0 1,495 (22) of which: stage 3 0 0 0 0 0 151 151 (23) of which: PCI 0 0 0 1 1 56 58 0 Irrevocable loan commitments 1,722 31,936 24,050 19,661 14,006 266 91,643 (178) of which: stage 1 1,722 31,936 23,989 19,079 10,354 0 87,080 (117) of which: stage 2 0 0 62 583 3,652 0 4,297 (51) of which: stage 3 0 0 0 0 0 218 218 (14) of which: PCI 0 0 0 0 0 48 48 4 Forward starting reverse repurchase and securities borrowing agreements 10,152 2 84 8,206 0 0 18,444 0 Total off-balance sheet financial instruments 29,679 42,899 33,554 33,783 15,888 473 156,278 (251) Credit lines Committed unconditionally revocable credit lines 2,659 108,395 28,669 17,739 5,648 146 163,256 (95) of which: stage 1 2,659 107,992 28,188 16,921 4,696 0 160,456 (78) of which: stage 2 0 403 481 818 952 0 2,654 (17) of which: stage 3 0 0 0 0 0 146 146 0 Irrevocable committed prolongation of existing loans 4 1,803 1,045 1,251 501 4 4,608 (4) of which: stage 1 4 1,803 1,045 1,249 493 0 4,593 (4) of which: stage 2 0 0 0 2 9 0 11 0 of which: stage 3 0 0 0 0 0 4 4 0 Total credit lines 2,663 110,197 29,714 18,990 6,149 150 167,864 (99) 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and Off-balance sheet positions subject to expected USD m 31.12.22 Rating category 1 0–1 2–3 4–5 6–8 9–13 Credit- impaired (defaulted) Total off- balance sheet exposure (maximum exposure to credit risk) ECL provisions Off-balance sheet financial instruments Guarantees 7,252 5,961 4,772 3,049 1,025 108 22,167 (48) of which: stage 1 7,252 5,917 3,812 2,229 596 0 19,805 (13) of which: stage 2 0 44 960 821 429 0 2,254 (9) of which: stage 3 0 0 0 0 0 108 108 (26) Irrevocable loan commitments 1,770 14,912 6,986 10,097 6,107 124 39,996 (111) of which: stage 1 1,770 14,789 6,818 9,625 4,529 0 37,531 (59) of which: stage 2 0 123 168 472 1,578 0 2,341 (52) of which: stage 3 0 0 0 0 0 124 124 0 Forward starting reverse repurchase and securities borrowing agreements 2,781 2 11 1,007 0 0 3,801 0 Total off-balance sheet financial instruments 11,803 20,874 11,769 14,153 7,132 233 65,964 (159) Credit lines Committed unconditionally revocable credit lines 2,288 15,918 9,247 10,162 3,739 36 41,390 (40) of which: stage 1 2,288 15,213 8,960 9,631 3,429 0 39,521 (32) of which: stage 2 0 705 287 531 310 0 1,833 (8) of which: stage 3 0 0 0 0 0 36 36 0 Irrevocable committed prolongation of existing loans 7 1,939 1,489 868 392 2 4,696 (2) of which: stage 1 7 1,938 1,411 864 380 0 4,600 (2) of which: stage 2 0 1 78 4 11 0 94 0 of which: stage 3 0 0 0 0 0 2 2 0 Total credit lines 2,295 17,857 10,736 11,030 4,131 37 46,086 (42) 1 Refer to the “Internal UBS rating scale and mapping of external ratings” table in the “Risk management and
Scenario Sensitivity Analysis Calculation Change Explanatory	Potential effect on stage 1 and stage 2 positions USD m 100% Baseline 100% Stagflationary geopolitical crisis 100% Mild debt crisis Weighted average Change in key parameters Fixed income: Government bonds (absolute change) –0.50% (7) (164) (7) (21) +0.50% 8 186 10 25 +1.00% 17 396 23 59 Unemployment rate (absolute change) –1.00% (6) (144) (8) (22) –0.50% (3) (77) (4) (12) +0.50% 3 90 4 14 +1.00% 7 189 8 28 Real GDP growth (relative change) –2.00% 49 84 73 58 –1.00% 25 40 36 30 +1.00% (20) (37) (35) (26) +2.00% (39) (71) (63) (50) House Price Index (relative change) –5.00% 17 249 25 53 –2.50% 8 120 12 24 +2.50% (7) (105) (9) (20) +5.00% (11) (204) (19) (38) Equity (S&P500, EuroStoxx, SMI) (relative change) –10.00% 4 10 8 6 –5.00% 2 5 3 2 +5.00% (2) (5) (3) (2) +10.00% (3) (8) (5) (4)
Scenario Sensitivity Analysis Explanatory	Potential effect on stage 1 and stage 2 positions Actual ECL allowances and provisions, including staging (as per Note 10) Pro forma ECL allowances and provisions, assuming all positions being subject to lifetime ECL Scenarios Weighted average 100% Baseline 100% Stagflationary geopolitical crisis 100% Mild debt crisis Weighted average USD m, except where indicated Segmentation Private clients with mortgages (161) (66) (816) (81) (409) Real estate financing (88) (53) (293) (49) (196) Large corporate clients (368) (282) (533) (419) (645) SME clients (188) (158) (274) (226) (296) Ship financing (48) (46) (50) (49) (125) Consumer financing / credit cards (74) (71) (81) (75) (186) Other segments (189) (157) (269) (197) (368) Total (1,115) (832) (2,317) (1,095) (2,225) Potential effect on stage 1 and stage 2 positions Actual ECL allowances and provisions, including staging (as per Note 9) Pro forma ECL allowances and provisions, assuming all positions being subject to lifetime ECL Scenarios Weighted average 100% Baseline 100% Asset price inflation 100% Stagflationary geopolitical crisis 100% Global crisis Weighted average USD m, except where indicated Segmentation Private clients with mortgages (136) (25) (13) (523) (184) (473) Real estate financing (43) (26) (22) (176) (30) (126) Large corporate clients (136) (97) (84) (199) (174) (235) SME clients (86) (67) (66) (162) (97) (153) Other segments (125) (114) (111) (145) (153) (281) Total (526) (329) (295) (1,204) (638) (1,267)

Fair value measurement (Tables)

Fair value measurement (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Measurement Tables [Line Items]
Disclosure Of Fair Value Measurement Of Assets Explanatory	Determination of fair values from quoted market 1 31.12.23 31.12.22 USD m 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 118,975 28,045 22,613 169,633 96,241 10,138 1,488 107,866 of which: Equity instruments 102,602 1,403 321 104,325 83,074 789 126 83,988 of which: Government bills / bonds 6,995 8,763 73 15,830 5,496 950 18 6,464 of which: Investment fund units 8,392 1,124 129 9,645 6,673 596 61 7,330 of which: Corporate and municipal bonds 984 12,801 1,284 15,069 976 6,363 541 7,880 of which: Loans 0 3,837 19,618 23,456 0 1,179 628 1,807 of which: Asset-backed securities 3 112 133 248 22 261 114 397 Derivative financial instruments 622 172,903 2,559 176,084 769 147,875 1,464 150,108 of which: Foreign exchange 347 78,060 253 78,659 575 84,881 2 85,458 of which: Interest rate 0 55,190 407 55,597 0 39,345 460 39,805 of which: Equity / index 0 34,174 1,299 35,473 1 21,542 653 22,195 of which: Credit 0 3,456 513 3,969 0 719 318 1,038 of which: Commodities 1 1,869 13 1,883 0 1,334 30 1,365 Brokerage receivables 0 21,037 0 21,037 0 17,576 0 17,576 Financial assets at fair value not held for trading 30,717 64,865 8,435 104,018 26,572 29,498 3,725 59,796 of which: Financial assets for unit-linked investment contracts 15,877 7 0 15,884 13,071 1 0 13,072 of which: Corporate and municipal bonds 62 16,722 215 17,000 35 14,101 230 14,366 of which: Government bills / bonds 14,306 4,801 0 19,107 13,103 3,638 0 16,741 of which: Loans 0 4,252 2,258 6,510 0 3,602 736 4,337 of which: Securities financing transactions 0 36,857 52 36,909 0 7,590 114 7,704 of which: Asset-backed securities 0 1,525 180 1,704 0 0 0 0 of which: Auction rate securities 0 0 1,208 1,208 0 0 1,326 1,326 of which: Investment fund units 367 548 678 1,592 307 566 190 1,063 of which: Equity instruments 105 38 3,097 2 3,241 57 0 792 849 Financial assets measured at fair value through other comprehensive income on Financial assets measured at fair value through other comprehensive 68 2,165 0 2,233 57 2,182 0 2,239 of which: Commercial paper and certificates of deposit 0 1,948 0 1,948 0 1,878 0 1,878 of which: Corporate and municipal bonds 68 207 0 276 57 278 0 335 Non-financial assets measured at fair value on a recurring basis Precious metals and other physical commodities 5,930 0 0 5,930 4,471 0 0 4,471 Non-financial assets measured at fair value on a non-recurring basis Other non-financial assets 3 0 0 31 31 0 0 110 110 Total assets measured at fair value 156,312 289,015 33,639 478,966 128,110 207,269 6,788 342,166 of which: Credit Suisse 4 7,015 91,133 26,455 124,603
Disclosure Of Fair Value Measurement Of Liabilities Explanatory	Determination of fair values from quoted market 1 31.12.23 31.12.22 USD m 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 27,684 6,315 161 34,159 23,578 5,823 114 29,515 of which: Equity instruments 18,266 248 92 18,606 16,521 352 78 16,951 of which: Corporate and municipal bonds 28 4,981 62 5,071 36 4,643 27 4,707 of which: Government bills / bonds 8,559 905 0 9,464 5,880 706 1 6,587 of which: Investment fund units 832 118 4 954 1,141 84 3 1,229 Derivative financial instruments 771 185,815 5,595 192,181 640 152,582 1,684 154,906 of which: Foreign exchange 457 89,394 36 89,887 587 87,897 24 88,508 of which: Interest rate 0 52,673 246 52,920 0 37,429 116 37,545 of which: Equity / index 0 38,046 3,333 41,380 0 24,963 1,184 26,148 of which: Credit 0 4,081 619 4,700 0 920 279 1,199 of which: Commodities 0 1,437 21 1,458 0 1,309 52 1,361 of which: Loan commitments measured at FVTPL 0 135 1,037 1,172 0 19 24 43 Financial liabilities designated at fair value on a recurring basis Brokerage payables designated at fair value 0 42,522 0 42,522 0 45,085 0 45,085 Debt issued designated at fair value 0 113,012 15,276 128,289 0 63,111 10,527 73,638 Other financial liabilities designated at fair value 0 26,878 2,606 29,484 0 29,547 691 30,237 of which: Financial liabilities related to unit-linked investment contracts 0 15,992 0 15,992 0 13,221 0 13,221 of which: Securities financing transactions 0 7,416 0 7,416 0 15,333 0 15,333 of which: Over-the-counter debt instruments and other 0 3,471 2,606 6,076 0 993 691 1,684 Total liabilities measured at fair value 28,454 374,542 23,638 426,635 24,219 296,148 13,015 333,381 of which: Credit Suisse 4 2,355 85,859 10,305 98,519 1 Bifurcated embedded derivatives are presented on the same balance sheet lines 2 Includes a USD 0.6 bn investment in Pfandbriefbank schweizerischer Hypothekarinstitute 20 % of the entity’s voting the entity. to Note 2 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 USD m 2023 2022 2021 Reserve balance at the beginning of the year 422 418 269 Profit / (loss) deferred on new transactions 260 299 459 (Profit) / loss recognized in the income statement (278) (295) (308) Foreign currency translation 0 0 (2) Reserve balance at the end of the year 404 422 418
Disclosure Of Change In Fair Value Of Financial Liability Attributable To Change In Credit Risk Of Liability Explanatory	Own credit adjustments on financial liabilities Included in Other comprehensive income For the year ended USD m 31.12.23 31.12.22 31.12.21 Recognized during the period: Realized gain / (loss) 8 1 (14) Unrealized gain / (loss) (1,858) 866 60 Total gain / (loss), before tax (1,850) 867 46 USD m 31.12.23 31.12.22 31.12.21 Recognized on the balance sheet as of the end of the period: Unrealized life-to-date gain / (loss) (1,287) 556 (315) of which: debt issued designated at fair value (1,297) 453 (347) of which: other financial liabilities designated at fair value 10 103 32
Disclosure Of Valuation Adjustments On Financial Instruments Explanatory	Other valuation adjustment reserves on the As of USD m 31.12.23 31.12.22 31.12.21 Credit valuation adjustments 1 (145) (33) (44) Funding and debit valuation adjustments (116) (46) (47) Other valuation adjustments (2,654) (839) (913) of which: liquidity (2,051) (311) (341) of which: model uncertainty (603) (529) (571) 1 Amount does not include reserves against defaulted counterparties.
Disclosure Of Significant Unobservable Inputs Used In Fair Value Measurement Of Assets And Liabilities Explanatory	Valuation techniques and inputs used in the fair value measurement Fair value Significant unobservable input(s) 1 Range of inputs Assets Liabilities Valuation technique(s) 31.12.23 31.12.22 USD bn 31.12.23 31.12.22 31.12.23 31.12.22 low high weighted average 2 low high weighted average 2 unit 1 Financial assets and liabilities at fair value held for trading and Financial assets at fair Corporate and municipal bonds 1.5 0.8 0.1 0.0 Relative value to market comparable Bond price equivalent 5 126 99 14 112 85 points Discounted expected cash flows Discount margin 135 491 463 412 412 basis points Traded loans, loans measured at fair value, loan commitments and guarantees 22.0 1.7 0.0 0.0 Relative value to market comparable Loan price equivalent 1 120 88 30 100 97 points Discounted expected cash flows Credit spread 19 2,681 614 200 200 200 basis points Market comparable and securitization model Credit spread 162 1,849 318 145 1,350 322 basis points Option model Gap risk 0 2 0 % Auction rate securities 1.2 1.3 Discounted expected cash flows Credit spread 135 205 150 115 196 144 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 3.4 0.9 0.1 0.1 Relative value to market comparable Price Debt issued designated at fair value 4 15.3 10.5 Other financial liabilities designated at fair value 2.6 0.7 Discounted expected cash flows Funding spread 51 201 23 175 basis points Derivative financial instruments Interest rate 0.4 0.5 0.2 0.1 Option model Volatility of interest rates 45 154 75 143 basis points Volatility of inflation 1 6 % IR-to-IR correlation 4 100 % Credit 0.5 0.3 0.6 0.3 Discounted expected cash flows Credit spreads 1 2,421 9 565 basis points Credit correlation 50 66 % Credit volatility 60 60 % Bond price equivalent 2 242 3 277 points Recovery rates 14 100 % Option model Credit spreads 26 2,159 basis points Equity / index 1.3 0.7 3.3 1.2 Option model Equity dividend yields 0 17 0 20 % Volatility of equity stocks, equity and other indices 4 142 4 120 % Equity-to-FX correlation (40) 77 (29) 84 % Equity-to-equity correlation (50) 100 (25) 100 % Loan commitments measured at FVTPL 1.0 Relative value to market comparable Loan price equivalent 35 102 points 1 The ranges of significant for most non-derivative financial liabilities designated at investments. and credit-linked notes, the-counter debt instruments are presented in the respective derivative financial instruments lines in this table.
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 31.12.23 31.12.22 USD m Favorable changes Unfavorable changes Favorable changes Unfavorable changes Traded loans, loans measured at fair value and guarantees 635 2 (600) 2 19 (12) Securities financing transactions 30 (32) 33 (37) Auction rate securities 67 (21) 46 (46) Asset-backed securities 39 (36) 27 (27) Equity instruments 430 (413) 183 (161) Investment fund units 135 (137) 19 (21) Loan commitments measured at FVTPL 313 (343) 0 0 Interest rate derivatives, net 217 (103) 18 (12) Credit derivatives, net 140 (131) 3 (4) Foreign exchange derivatives, net 5 (4) 10 (5) Equity / index derivatives, net 521 (443) 361 (330) Other 281 (276) 20 (41) Total 2,815 (2,538) 738 (696) of which: Credit Suisse 3 2,034 (1,890) 1 Sensitivity of refinements applied in estimating valuation uncertainty across various parameters.
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 1 Net gains / losses included in compre- hensive income 2 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 twelve months ended 31 December 2023 3 Financial assets at fair value held for trading 1.5 26.2 (0.9) (0.5) 1.1 (4.5) 3.6 (5.6) 2.3 (1.1) 0.0 22.6 of which: Equity instruments 0.1 0.4 (0.1) (0.0) 0.1 (0.2) 0.0 0.0 0.2 (0.1) 0.0 0.3 of which: Corporate and municipal bonds 0.5 1.1 (0.2) (0.1) 0.6 (0.8) 0.0 0.0 0.1 (0.0) 0.0 1.3 of which: Loans 0.6 23.1 (0.7) (0.4) 0.1 (2.7) 3.6 (5.6) 2.0 (0.8) 0.0 19.6 Derivative financial instruments – assets 1.5 1.4 (0.2) (0.1) 0.0 (0.0) 1.0 (0.8) 0.3 (0.7) 0.0 2.6 of which: Interest rate 0.5 0.2 (0.0) (0.0) 0.0 0.0 0.2 (0.3) 0.1 (0.2) (0.0) 0.4 of which: Equity / index 0.7 0.5 (0.1) 0.0 0.0 0.0 0.6 (0.2) 0.1 (0.3) 0.0 1.3 of which: Credit 0.3 0.2 (0.1) (0.0) 0.0 0.0 0.1 (0.2) 0.1 (0.0) 0.0 0.5 Financial assets at fair value not held for trading 3.7 4.2 0.2 0.1 2.1 (2.2) 0.0 (0.0) 0.8 (0.3) 0.1 8.4 of which: Loans 0.7 0.8 0.3 0.3 0.6 (0.4) (0.0) (0.0) 0.4 (0.2) 0.0 2.3 of which: Auction rate securities 1.3 0.0 0.0 0.0 0.0 (0.1) 0.0 0.0 0.0 0.0 0.0 1.2 of which: Equity instruments 0.8 2.1 (0.0) (0.1) 0.5 (0.4) 0.0 (0.0) 0.1 0.0 0.1 3.1 Derivative financial instruments – liabilities 1.7 4.5 (0.4) 0.1 0.0 (0.0) 2.0 (2.0) 0.4 (0.7) 0.0 5.6 of which: Interest rate 0.1 0.2 (0.0) (0.0) 0.0 0.0 0.1 (0.1) 0.1 (0.2) 0.0 0.2 of which: Equity / index 1.2 1.7 0.2 0.6 (0.0) (0.0) 1.2 (0.9) 0.2 (0.3) 0.0 3.3 of which: Credit 0.3 0.3 0.0 0.0 0.0 0.0 0.1 (0.1) 0.1 (0.1) 0.0 0.6 of which: Loan commitments measured at FVTPL 0.0 2.0 (0.6) (0.5) 0.0 0.0 0.1 (0.5) 0.0 (0.0) 0.0 1.0 Debt issued designated at fair value 10.5 8.5 1.0 0.8 0.0 0.0 3.7 (5.1) 1.0 (4.5) 0.0 15.3 Other financial liabilities designated at fair value 0.7 2.1 (0.0) 0.0 0.0 0.0 0.2 (0.2) 0.0 (0.1) 0.0 2.6 For the twelve months ended 31 December 2022 Financial assets at fair value held for trading 2.3 (0.3) (0.3) 0.3 (1.8) 0.5 0.0 0.7 (0.3) (0.0) 1.5 of which: Investment fund units 0.0 (0.0) (0.0) 0.0 (0.0) 0.0 0.0 0.1 (0.0) (0.0) 0.1 of which: Corporate and municipal bonds 0.6 (0.0) (0.0) 0.3 (0.6) 0.0 0.0 0.4 (0.0) (0.0) 0.5 of which: Loans 1.4 (0.1) (0.1) 0.0 (1.1) 0.5 0.0 0.0 (0.2) 0.0 0.6 Derivative financial instruments – assets 1.1 0.6 0.3 0.0 0.0 0.4 (0.7) 0.1 (0.0) (0.0) 1.5 of which: Interest rate 0.5 0.3 0.3 0.0 0.0 0.0 (0.2) 0.0 (0.1) (0.0) 0.5 of which: Equity / index 0.4 0.2 0.1 0.0 0.0 0.4 (0.3) 0.1 (0.0) (0.0) 0.7 of which: Credit 0.2 0.1 (0.1) 0.0 0.0 0.0 (0.2) 0.0 0.1 0.0 0.3 Financial assets at fair value not held for trading 4.2 0.1 0.1 0.7 (1.2) 0.1 (0.0) 0.2 (0.3) (0.0) 3.7 of which: Loans 0.9 (0.0) (0.0) 0.4 (0.4) 0.1 0.0 0.1 (0.3) (0.0) 0.7 of which: Auction rate securities 1.6 0.1 0.0 0.0 (0.3) 0.0 0.0 0.0 0.0 0.0 1.3 of which: Equity instruments 0.7 0.0 0.0 0.1 (0.1) 0.0 0.0 0.1 0.0 (0.0) 0.8 Derivative financial instruments – liabilities 2.2 (0.8) (0.4) 0.0 0.0 1.1 (0.9) 0.3 (0.2) (0.1) 1.7 of which: Interest rate 0.3 (0.3) (0.0) 0.0 0.0 0.1 (0.0) 0.0 (0.0) (0.0) 0.1 of which: Equity / index 1.5 (0.4) (0.3) 0.0 0.0 0.8 (0.7) 0.1 (0.2) (0.0) 1.2 of which: Credit 0.3 (0.1) (0.0) 0.0 0.0 0.1 (0.1) 0.1 (0.0) (0.0) 0.3 Debt issued designated at fair value 14.2 (2.2) (1.8) 0.0 0.0 4.7 (3.1) 0.7 (3.4) (0.3) 10.5 Other financial liabilities designated at fair value 0.8 (0.1) (0.1) 0.0 0.0 0.0 (0.1) 0.0 (0.0) (0.0) 0.7 1 Refer to Note 2 financial instruments measured at fair comprehensive income. 33.6 bn (31 December 2022: USD 6.8 bn). Total Level 3 liabilities as of 23.6 bn (31 December 2022: USD 13.0 bn).
Disclosure Of Maximum Credit Risk Exposure Explanatory	Maximum exposure to credit risk 31.12.23 Maximum exposure to credit risk Collateral Credit enhancements Exposure to credit risk after collateral and credit enhancements USD bn Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at fair value on the balance sheet 1 Financial assets at fair value held for trading – debt instruments 2,3 54.6 54.6 Derivative financial instruments 4 176.1 6.4 156.4 13.3 Brokerage receivables 21.0 20.5 0.5 Financial assets at fair value not held for trading – debt instruments 5 83.3 41.7 0.0 0.2 0.0 41.3 Total financial assets measured at fair value 335.0 0.0 68.6 0.0 0.0 156.6 0.0 0.0 109.8 of which: Credit Suisse 6 114.2 32.9 0.0 42.0 0.0 39.3 Guarantees 0.1 0.1 0.0 31.12.22 Maximum exposure to credit risk Collateral Credit enhancements Exposure to credit risk after collateral and credit enhancements USD bn Cash collateral received Collateralized by equity and debt instruments Secured by real estate Other collateral Netting Credit derivative contracts Guarantees and sub- participations Financial assets measured at fair value on the balance sheet 1 Financial assets at fair value held for trading – debt instruments 2,3 16.5 16.5 Derivative financial instruments 4 150.1 5.9 133.5 10.7 Brokerage receivables 17.6 17.3 0.3 Financial assets at fair value not held for trading – debt instruments 5 44.8 11.4 33.4 Total financial assets measured at fair value 229.0 0.0 34.6 0.0 0.0 133.5 0.0 0.0 61.0 Guarantees 0.2 0.2 0.0 1 The maximum exposure to not considered as these positions are generally managed under the market risk framework. not recognized collateralized by equity and debt instruments Suisse Group.
Disclosure Of Fair Value Of Financial Instruments Not Measured At Fair Value Explanatory	Financial instruments not measured at fair value 31.12.23 31.12.22 Carrying amount Fair value Carrying amount Fair value USD bn Total Carrying amount approximates fair value 1 Level 1 Level 2 Level 3 Total Total Carrying amount approximates fair value 1 Level 1 Level 2 Level 3 Total Assets Cash and balances at central banks 314.1 314.0 0.0 0.1 0.0 314.1 169.4 169.4 0.1 0.0 0.0 169.4 Amounts due from banks 21.2 19.7 0.0 1.2 0.2 21.2 14.8 14.0 0.0 0.7 0.0 14.8 Receivables from securities financing transactions measured at amortized cost 99.0 93.6 0.0 3.9 1.5 99.0 67.8 64.3 0.0 1.8 1.7 67.8 Cash collateral receivables on derivative instruments 50.1 50.1 0.0 0.0 0.0 50.1 35.0 35.0 0.0 0.0 0.0 35.0 Loans and advances to customers 639.8 196.9 0.0 54.5 382.2 633.7 387.2 134.3 0.0 45.9 194.7 374.9 Other financial assets measured at amortized cost 65.5 13.2 13.9 33.9 2.6 64.0 53.3 12.9 10.3 25.1 2.5 50.8 Liabilities Amounts due to banks 71.0 62.7 0.0 8.3 0.0 71.0 11.6 8.9 0.0 2.7 0.0 11.6 Payables from securities financing transactions measured at amortized cost 14.4 8.1 0.0 5.9 0.4 14.4 4.2 3.5 0.0 0.7 0.0 4.2 Cash collateral payables on derivative instruments 41.6 41.5 0.0 0.0 0.0 41.5 36.4 36.4 0.0 0.0 0.0 36.4 Customer deposits 792.0 694.1 0.0 98.7 0.0 792.9 525.1 491.3 0.0 33.6 0.0 524.8 Debt issued measured at amortized cost 237.8 24.7 0.0 216.3 0.1 241.3 114.6 15.4 0.0 98.1 0.0 113.5 Other financial liabilities measured at amortized cost 2 15.3 13.4 0.0 0.0 1.7 15.2 6.2 6.2 0.0 0.0 0.0 6.2 1 Includes certain financial instruments where the carrying with a remaining maturity (excluding the effects of callable features) of three months or less).

Offsetting financial assets a_2

Offsetting financial assets and financial liabilities (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Offsetting Financial Assets And Financial Liabilities Tables [Line Items]
Disclosure Of Offsetting Of Financial Assets Explanatory	Financial assets subject to offsetting, enforceable Assets subject to netting arrangements Netting recognized on the balance sheet Netting potential not recognized on the balance sheet 3 Assets not subject to netting arrangements 4 Total assets As of 31.12.23, USD bn Gross assets before netting Netting with gross liabilities 2 Net assets recognized on the balance sheet Financial liabilities Collateral received Assets after consideration of netting potential Assets recognized on the balance sheet Total assets after consideration of netting potential Total assets recognized on the balance sheet Receivables from securities financing transactions measured at amortized cost 93.7 (12.7) 80.9 (1.5) (79.2) 0.3 18.1 18.4 99.0 Derivative financial instruments 172.4 (3.3) 169.1 (133.0) (29.8) 6.3 7.0 13.3 176.1 Cash collateral receivables on derivative instruments 1 47.3 0.0 47.3 (29.7) (3.2) 14.5 2.7 17.2 50.1 Financial assets at fair value not held for trading 129.8 (92.6) 37.2 (2.0) (35.3) 0.0 66.7 66.7 104.0 of which: reverse repurchase agreements 128.7 (92.6) 36.1 (2.0) (34.1) 0.0 0.8 0.8 36.9 Total assets 443.2 (108.6) 334.6 (166.2) (147.4) 21.0 94.6 115.6 429.2 As of 31.12.22, USD bn Receivables from securities financing transactions measured at amortized cost 60.8 (11.1) 49.6 (3.0) (46.4) 0.3 18.2 18.5 67.8 Derivative financial instruments 147.4 (2.5) 144.9 (110.9) (28.5) 5.5 5.2 10.7 150.1 Cash collateral receivables on derivative instruments 1 33.5 0.0 33.5 (20.9) (1.9) 10.6 1.5 12.1 35.0 Financial assets at fair value not held for trading 85.6 (76.8) 8.7 (1.5) (7.3) 0.0 51.0 51.0 59.8 of which: reverse repurchase agreements 84.4 (76.8) 7.6 (1.5) (6.1) 0.0 0.1 0.1 7.7 Total assets 327.2 (90.4) 236.8 (136.3) (84.1) 16.4 76.0 92.3 312.8 1 The net IAS 32 principles and exchange-traded directly to the amounts presented in the “Netting with gross from securities financing transactions “Payables from securities financing transactions measured at amortized cost” and “Other financial liabilities designated at fair value” lines the amounts of financial instruments and cash collateral presented have been capped so as not to exceed the net amount of financial assets presented on the balance sheet; i.e., over-collateralization, where is not reflected in the table.
Disclosure Of Offsetting Of Financial Liabilities Explanatory	Financial liabilities subject to offsetting, enforceable Liabilities subject to netting arrangements Netting recognized on the balance sheet Netting potential not recognized on the balance sheet 3 Liabilities not subject to netting arrangements 4 Total liabilities As of 31.12.23, USD bn Gross liabilities before netting Netting with gross assets 2 Net liabilities recognized on the balance sheet Financial assets Collateral pledged Liabilities after consideration of netting potential Liabilities recognized on the balance sheet Total liabilities after consideration of netting potential Total liabilities recognized on the balance sheet Payables from securities financing transactions measured at amortized cost 25.2 (12.5) 12.6 (0.8) (11.8) 0.0 1.8 1.8 14.4 Derivative financial instruments 185.1 (3.3) 181.8 (133.0) (35.0) 13.9 10.4 24.3 192.2 Cash collateral payables on derivative instruments 1 39.8 0.0 39.7 (23.2) (3.2) 13.3 1.8 15.2 41.6 Other financial liabilities designated at fair value 102.1 (92.8) 9.3 (2.7) (4.8) 1.8 20.2 22.0 29.5 of which: repurchase agreements 100.0 (92.8) 7.2 (2.7) (4.5) 0.0 0.2 0.2 7.4 Total liabilities 352.1 (108.6) 243.5 (159.7) (54.8) 29.1 34.2 63.2 277.7 As of 31.12.22, USD bn Payables from securities financing transactions measured at amortized cost 14.1 (11.1) 3.0 (1.3) (1.8) 0.0 1.2 1.2 4.2 Derivative financial instruments 150.3 (2.5) 147.8 (110.9) (26.2) 10.7 7.1 17.8 154.9 Cash collateral payables on derivative instruments 1 34.9 0.0 34.9 (20.0) (1.9) 13.0 1.6 14.5 36.4 Other financial liabilities designated at fair value 92.5 (76.9) 15.6 (3.2) (12.4) 0.0 14.6 14.6 30.2 of which: repurchase agreements 92.1 (76.9) 15.3 (3.2) (12.1) 0.0 0.1 0.1 15.3 Total liabilities 291.7 (90.4) 201.3 (135.3) (42.3) 23.7 24.5 48.1 225.8 1 The net amount of Cash collateral payables on derivative instruments recognized on the balance sheet includes certain OTC derivatives that are net settled on a daily basis either legally or in substance under IAS 32 principles and exchange-traded derivatives that are economically settled on presented in the “Netting with gross measured at amortized financing transactions measured at amortized cost” instruments and cash collateral presented have been capped so as not to exceed the net amount of financial liabilities presented on the balance sheet; table.

Restricted financial assets (Ta

Restricted financial assets (Tables)	12 Months Ended
	Dec. 31, 2023
Notes Disclosure Restricted Financial Assets Tables [Line Items]
Disclosure of restricted financial assets [text block]	Restricted financial assets USD m 31.12.23 31.12.22 Restricted financial assets of which: assets pledged as collateral that may be sold or repledged by counterparties Restricted financial assets of which: assets pledged as collateral that may be sold or repledged by counterparties Financial assets pledged as collateral Cash and balances at central banks 1 1,041 Financial assets at fair value held for trading 83,689 51,263 57,377 36,742 Loans and advances to customers 127,362 15,195 Financial assets at fair value not held for trading 3,099 2,110 1,509 1,220 Debt securities classified as Other financial assets measured 7,561 6,299 3,432 2,685 Total financial assets pledged as collateral 222,752 77,513 Other restricted financial assets Amounts due from banks 2,874 3,689 Financial assets at fair value held for trading 184 162 Cash collateral receivables on derivative instruments 9,539 5,155 Loans and advances to customers 275 1,127 Other financial assets measured at amortized cost 4,724 2 815 Financial assets at fair value not held for trading 18,229 14,478 Financial assets measured at fair value through other comprehensive 1,846 1,842 Other 354 44 Total other restricted financial assets 38,025 27,312 Total financial assets pledged and other restricted financial assets 3 260,777 104,825 4 114,611 1 Assets pledged to the depositor protection to secure securities trading activity through those counterparties. 2023: USD 9.8 bn; 31 December 2022: USD 5.9 bn).
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition Explanatory	Transferred financial assets subject to continued recognition in full USD m 31.12.23 31.12.22 Carrying amount of transferred assets Carrying amount of associated liabilities recognized on balance sheet Carrying amount of transferred assets Carrying amount of associated liabilities recognized on balance sheet Financial assets at fair value held for trading that may be sold or repledged 51,263 23,765 36,742 16,470 Financial assets at fair value not held for trading that may be sold or repledged counterparties 2,110 1,976 1,220 1,050 Debt securities classified as Other financial assets measured sold or repledged by counterparties 6,299 5,928 2,685 2,302 Total financial assets transferred 59,672 31,669 40,647 19,822 1 6,739 391 1 Refer to Note 2 for more information about the acquisition of the Credit Suisse Group.
Disclosure Of Off Balance Sheet Assets Received Table [Text Block]	Off-balance sheet assets received USD m 31.12.23 31.12.22 Fair value of assets received that can be sold or repledged of which: sold 2 Fair value of assets received that can be sold or repledged of which: sold 2 Fair value of assets received that can be sold or repledged 1 576,596 382,313 434,023 331,805 of which: Credit Suisse 3 88,068 26,697 1 Includes securities received as initial margin from its clients that UBS is required to remit to central counterparties, 2 Does not include off-balance sheet securities (31 December 29.1 bn; 31 December 2022: USD 9.9 bn) placed with central banks related to undrawn purposes for which there are no associated liabilities or contingent liabilities.

Maturity analysis of assets and

Maturity analysis of assets and liabilities (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Offsetting Financial Assets And Financial Liabilities Tables [Line Items]
Disclosure Of Maturity Analysis For Assets And Liabilities Explanatory	31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Assets Total financial assets measured at amortized cost 645.9 57.7 88.3 125.6 136.8 135.5 1,189.8 Amounts due from banks 18.8 1.1 0.8 0.0 0.3 0.2 21.2 Loans and advances to customers 177.9 34.0 77.5 118.5 116.6 115.3 639.8 Other financial assets measured at amortized cost 12.3 1.8 5.2 6.3 19.8 20.0 65.5 Total financial assets measured at fair value through profit or loss 417.6 12.2 9.9 8.4 12.6 5.3 4.8 470.8 Financial assets at fair value not held for trading 50.8 12.2 9.9 8.4 12.6 5.3 4.8 104.0 Financial assets measured at fair value through other comprehensive income 0.1 1.1 1.0 0.1 0.0 0.0 2.2 Total non-financial assets 12.3 0.2 1.3 1.2 1.1 38.4 54.5 Total assets 1,075.9 71.0 99.3 135.3 150.6 142.0 43.2 1,717.2 of which: Credit Suisse 346.4 37.5 50.2 32.7 59.9 44.2 12.2 583.2 Liabilities Total financial liabilities measured at amortized cost 748.7 97.0 115.1 49.8 88.7 66.4 12.0 1,177.6 Customer deposits 618.2 76.5 72.7 15.9 8.4 0.3 792.0 Debt issued measured at amortized cost 10.1 14.7 34.3 31.1 73.2 62.5 12.0 237.8 of which: non-subordinated 7.6 14.7 31.8 30.8 72.8 62.5 220.2 of which: subordinated 2.5 2.5 0.3 0.3 0.0 12.0 17.6 Total financial liabilities measured at fair value through profit or loss 1 308.3 14.0 30.0 31.2 18.0 25.2 426.6 Debt issued designated at fair value 17.0 13.8 28.8 28.8 15.9 24.0 128.3 Total non-financial liabilities 17.8 4.5 0.2 0.3 0.7 0.4 2.5 26.3 Total liabilities 1,074.7 115.6 145.3 81.3 107.4 91.9 14.5 1,630.6 of which: Credit Suisse 328.0 34.3 40.6 19.9 27.3 25.2 0.3 475.7 Guarantees, loan commitments and forward starting transactions 2 Irrevocable loan commitments 90.7 0.5 0.4 0.0 0.0 91.6 Guarantees 46.3 46.3 Forward starting reverse repurchase and securities borrowing agreements 18.4 18.4 Irrevocable committed prolongation of existing loans 2.5 0.8 1.3 0.0 0.0 4.6 Total 157.9 1.4 1.8 0.0 0.0 161.0 of which: Credit Suisse 70.1 0.0 0.0 0.0 0.0 70.1 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Assets Total financial assets measured at amortized cost 422.6 28.7 34.4 78.7 70.4 92.7 727.6 Amounts due from banks 13.4 0.7 0.6 0.0 0.0 0.1 14.8 Loans and advances to customers 139.4 16.3 28.3 74.9 55.5 72.9 387.2 Other financial assets measured at amortized cost 8.7 4.2 2.8 3.0 14.8 19.7 53.3 Total financial assets measured at fair value through profit or loss 300.2 10.0 7.8 3.6 9.9 2.0 1.9 335.3 Financial assets at fair value not held for trading 24.6 10.0 7.8 3.6 9.9 2.0 1.9 59.8 Financial assets measured at fair value through other comprehensive income 0.3 0.9 0.9 0.1 0.0 0.0 2.2 Total non-financial assets 7.6 0.2 2.0 0.4 29.0 39.2 Total assets 730.7 39.6 43.4 82.4 82.3 95.1 31.0 1,104.4 Liabilities Total financial liabilities measured at amortized cost 521.9 40.0 49.6 20.5 35.1 23.4 11.1 701.5 Customer deposits 463.0 28.3 23.8 7.5 2.2 0.3 525.1 Debt issued measured at amortized cost 6.6 8.8 23.3 11.9 31.1 21.9 11.1 114.6 of which: non-subordinated 4.6 8.8 23.3 9.5 30.6 21.9 98.6 of which: subordinated 2.0 2.4 0.5 11.1 16.0 Total financial liabilities measured at fair value through profit or loss 1 265.9 13.8 16.3 19.6 7.3 10.5 333.4 Debt issued designated at fair value 9.3 12.3 15.9 19.3 6.9 10.0 73.6 Total non-financial liabilities 7.2 3.0 2.1 12.3 Total liabilities 795.1 56.7 65.9 40.1 42.4 33.9 13.2 1,047.1 Guarantees, loan commitments and forward starting transactions 2 Irrevocable loan commitments 39.3 0.3 0.4 0.0 40.0 Guarantees 22.4 22.4 Forward starting reverse repurchase and securities borrowing agreements 3.8 3.8 Irrevocable committed prolongation of existing loans 4.7 4.7 Total 70.1 0.3 0.4 0.0 70.9 1 As of 31 December through profit or loss agreements, measured at information.
Disclosure of maturity analysis for financial liabilities [text block]	31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Financial liabilities recognized on balance sheet 1 Amounts due to banks 60.2 2.7 4.2 0.3 4.4 0.0 71.7 Payables from securities financing transactions 5.0 3.2 3.7 2.0 0.9 0.0 14.8 Cash collateral payables on derivative instruments 41.6 41.6 Customer deposits 619.5 77.6 75.4 17.6 9.9 0.3 800.4 Debt issued measured at amortized cost 2 10.7 16.4 38.8 37.4 87.8 75.6 12.4 279.3 Other financial liabilities measured at amortized cost 7.7 0.2 0.9 1.2 3.3 4.2 17.4 0.1 0.1 0.8 0.9 2.1 2.5 6.5 Total financial liabilities measured at amortized cost 744.7 100.2 123.1 58.5 106.3 80.0 12.4 1,225.2 Financial liabilities at fair value held for trading 3,4 34.2 34.2 Derivative financial instruments 3,5 192.2 192.2 Brokerage payables designated at fair value 42.5 42.5 Debt issued designated at fair value 6 17.1 14.3 30.1 32.1 17.4 38.7 149.8 Other financial liabilities designated at fair value 22.2 0.2 1.2 2.3 2.1 1.6 29.7 Total financial liabilities measured at fair value through profit or loss 308.2 14.6 31.3 34.5 19.5 40.3 448.3 Total 1,052.9 114.8 154.3 93.0 125.7 120.4 12.4 1,673.5 315.9 33.9 42.8 21.7 30.8 29.0 474.1 Guarantees, loan commitments and forward starting transactions Irrevocable loan commitments 7 90.7 0.5 0.4 0.0 0.0 91.6 Guarantees 46.3 46.3 Forward starting reverse repurchase and securities borrowing agreements 7 18.4 18.4 Irrevocable committed prolongation of existing loans 2.5 0.8 1.3 0.0 0.0 4.6 Total 157.9 1.4 1.8 0.0 0.0 161.0 70.1 0.0 0.0 0.0 0.0 70.1 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 2 years Due between 2 and 5 years Due over 5 years Perpetual / Not applicable Total Financial liabilities recognized on balance sheet 1 Amounts due to banks 6.3 2.6 1.9 0.3 0.6 0.0 11.7 Payables from securities financing transactions 3.3 0.3 0.4 0.3 4.4 Cash collateral payables on derivative instruments 36.4 36.4 Customer deposits 463.1 28.5 24.5 8.0 2.4 0.3 526.9 Debt issued measured at amortized cost 2 6.8 9.4 24.8 14.4 37.9 28.0 11.9 133.4 Other financial liabilities measured at amortized cost 4.7 0.1 0.5 0.5 1.3 1.4 8.5 0.1 0.1 0.5 0.5 1.3 1.4 3.8 Total financial liabilities measured at amortized cost 520.7 40.9 52.1 23.6 42.3 29.7 11.9 721.2 Financial liabilities at fair value held for trading 3,4 29.5 29.5 Derivative financial instruments 3,5 154.9 154.9 Brokerage payables designated at fair value 45.1 45.1 Debt issued designated at fair value 6 9.4 12.4 16.1 19.7 7.1 18.8 83.4 Other financial liabilities designated at fair value 27.1 1.4 0.4 0.4 0.5 0.8 30.6 Total financial liabilities measured at fair value through profit or loss 266.0 13.8 16.4 20.0 7.6 19.6 343.5 Total 786.8 54.7 68.6 43.6 49.8 49.3 11.9 1,064.7 Guarantees, loan commitments and forward starting transactions Irrevocable loan commitments 7 39.3 0.3 0.4 0.0 40.0 Guarantees 22.4 22.4 Forward starting reverse repurchase and securities borrowing agreements 7 3.8 3.8 Irrevocable committed prolongation of existing loans 4.7 4.7 Total 70.1 0.3 0.4 0.0 70.9 1 Except for financial liabilities at payments. cash flows that would have to be paid if 32.3 bn due within 1 month (31 December 2022: USD 27.8 bn), USD 1.8 bn due between 1 month and 1 year (31 December 2022: USD 1.7 bn) and USD 0 bn due between 1 and 5 years (31 December 2022: USD 0 bn). 1,195 m (31 December 2022: USD 46 m) related to committed amount of USD 100.1 bn (31 December 34.4 bn) is presented in applicable interest rate prevailing as of the reporting date. Future principal payments that are variable are determined by reference to the conditions existing at the relevant reporting date. commitments and forward starting reverse repurchase agreements measured at fair value (see footnote 5).

Interest rate benchmark reform

Interest rate benchmark reform (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Interest Rate Benchmark Reform Maximum Exposure Tables [Line Items]
Disclosure Of Quantitative Information About Financial Instruments That Have Yet To Transition To Alternative Benchmark Rate Explanatory	31.12.22 1 Measure USD LIBOR benchmark rates Carrying value of non-derivative financial instruments Total non-derivative financial assets USD m 14,269 2 Total non-derivative financial liabilities USD m 1,138 3 Trade count of derivative financial instruments Total derivative financial instruments Trade count 32,006 4 Off-balance sheet exposures Total irrevocable loan commitments USD m 4,606 5 1 As of 31 December 2022, 1 bn of loans related to USD LIBOR. The remaining balances LIBOR, with transition dependent upon the actions of respective issuers. 2,000 30 June 2023. No 3 bn of loan commitments that efforts remained open as of 31 December 2022.

Hedge accounting (Tables)

Hedge accounting (Tables)	12 Months Ended
	Dec. 31, 2023
Notes Hedge Accounting Tables [Line Items]
Disclosure Of Detailed Information About Hedging Instruments Explanatory	All hedges: designated hedging instruments As of or for the year ended 31.12.23 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 246,909 3 51 2,275 (2,311) (36) Cash flow hedges 97,834 3 0 (337) 358 21 Foreign exchange risk Fair value hedges 2 33,877 468 291 132 (151) (19) Hedges of net investments in foreign operations 38,668 17 1,270 (2,317) 2,320 3 As of or for the year ended 31.12.22 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Changes in fair value of hedging instruments 1 Changes in fair value of hedged items 1 Hedge ineffectiveness recognized in the income statement Interest rate risk Fair value hedges 92,415 0 0 (5,195) 5,169 (27) Cash flow hedges 75,304 2 5 (5,813) 5,760 (53) Foreign exchange risk Fair value hedges 2 20,566 845 3 (1,088) 1,105 18 Hedges of net investments in foreign operations 14,009 7 529 336 (337) (1) 1 Amounts used accounting designation and accounted for as a cost of hedging with amounts deferred in Other comprehensive income within Equity.
Disclosure of fair value hedge accounting [text block]	Fair value hedges: designated hedged items 1 USD m 31.12.23 31.12.22 Interest rate risk FX risk Interest rate risk FX risk Loans and advances to customers Carrying amount of designated loans 61,107 14,270 of which: accumulated amount of fair value hedge adjustment 457 (1,249) of which: accumulated amount of fair value hedge adjustment subject portfolio that ceased to be part of hedge accounting (179) (51) Other financial assets measured at amortized cost – debt securities Carrying amount of designated debt securities 6,333 4,577 (109) (180) Customer deposits Carrying amount of customer deposits 8,972 50 Debt issued measured at amortized cost Carrying amount of designated debt issued 156,507 22,329 68,529 20,566 (2,976) (6,057) 1 12 bn of intragroup debt instruments which are these instruments impact consolidated profit or loss. No such designations were in place as of 31 December 2022.
Disclosure of fair value hedge accounting related to debt issued and debt securities [text block]	Fair value hedges: profile of the timing of the 31.12.23 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 1 7 29 142 68 247 Cross-currency swaps 1 2 2 22 7 34 31.12.22 USD bn Due within 1 month Due between 1 and 3 months Due between 3 and 12 months Due between 1 and 5 years Due after 5 years Total Interest rate swaps 0 4 10 53 26 92 Cross-currency swaps 0 1 2 12 5 21
Disclosure of cash flow hedge accounting [text block]	Cash flow hedge reserve on a pre-tax basis USD m 31.12.23 31.12.22 Amounts related to hedge relationships for which hedge (2,319) (4,692) Amounts related to hedge relationships for which hedge (1,487) (540) Total other comprehensive income recognized directly in equity related to cash flow hedges, on a pre-tax basis (3,806) (5,232)
Disclosure of foreign currecny translation hedge accounting [text block]	Foreign currency translation reserve on a pre-tax basis USD m 31.12.23 31.12.22 Amounts related to hedge relationships for which hedge (2,063) 284 Amounts related to hedge relationships for which hedge 266 266 Total other comprehensive income recognized directly in equity related to hedging instruments basis (1,798) 550
Disclosure Hedge Accounting Referencing LIBOR Explanatory	Hedging instruments referencing LIBOR 31.12.22 Carrying amount USD m Notional amount Derivative financial assets Derivative financial liabilities Interest rate risk Fair value hedges 20,383 0 0 Cash flow hedges 2,179 0 0

Post-employment benefit plans (

Post-employment benefit plans (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Post-employment Benefit Plans Tables [Line Items]
Disclosure Of Defined Benefit Plans Explanatory	Defined benefit plans USD m Swiss plans UK plans US and German plans Total 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 Defined benefit obligation at the beginning of the year 22,272 27,398 2,166 4,105 1,375 1,740 25,813 33,242 Defined benefit obligation recognized upon the acquisition 15,142 0 954 0 1,025 0 17,121 0 Current service cost 567 416 1 0 5 5 573 420 Interest expense 680 344 139 67 88 35 907 446 Plan participant contributions 370 257 0 0 0 0 370 257 Remeasurements 4,446 (4,151) 195 (1,474) 37 (267) 4,678 (5,891) of which: actuarial (gains) / losses due to changes in demographic 76 3 (79) (6) (2) 1 (5) (2) of which: actuarial (gains) / losses due to changes in financial 2,886 (4,666) 128 (1,575) 51 (279) 3,064 (6,520) of which: experience (gains) / losses 2 1,484 512 146 107 (12) 11 1,619 631 Past service cost related to plan amendments 245 0 0 0 0 0 245 0 Curtailments (29) (20) 0 0 0 0 (29) (20) Benefit payments (2,309) (1,454) (125) (123) (177) (111) (2,611) (1,687) Termination benefits 21 0 0 0 0 0 21 0 Other movements 0 (5) 0 0 0 0 0 (5) Foreign currency translation 3,516 (513) 137 (408) 14 (28) 3,667 (949) Defined benefit obligation at the end of the year 44,922 22,272 3,467 2,166 2,368 1,375 50,756 25,813 of which: amounts owed to active members 24,007 11,927 97 65 330 169 24,435 12,160 of which: amounts owed to deferred members 0 0 1,655 656 904 528 2,558 1,184 of which: amounts owed to retirees 20,915 10,345 1,715 1,445 1,134 678 23,763 12,469 of which: funded plans 44,922 22,272 3,467 2,166 1,797 1,011 50,186 25,449 of which: unfunded plans 0 0 0 0 571 363 571 363 Fair value of plan assets at the beginning of the year 30,119 33,975 2,488 4,297 1,039 1,329 33,646 39,601 Fair value of plan assets recognized upon the acquisition of the Credit Suisse Group 18,914 0 1,499 0 824 0 21,236 0 Return on plan assets excluding interest income 1,234 (3,248) 153 (1,312) 66 (223) 1,453 (4,782) Interest income 916 485 173 70 70 31 1,159 586 Employer contributions 690 685 12 5 29 16 732 706 Plan participant contributions 370 257 0 0 0 0 370 257 Benefit payments (2,309) (1,454) (125) (123) (177) (111) (2,611) (1,687) Administration expenses, taxes and premiums paid (19) (12) (1) 0 (6) (3) (27) (16) Other movements 2 (2) 0 0 0 0 2 (2) Foreign currency translation 4,485 (567) 165 (450) 4 0 4,654 (1,017) Fair value of plan assets at the end of the year 54,404 30,119 4,364 2,488 1,849 1,039 60,616 33,646 Surplus / (deficit) 9,482 7,848 897 321 (519) (335) 9,860 7,834 Asset ceiling effect at the beginning of the year 7,848 6,577 0 0 0 0 7,848 6,577 Asset ceiling effect recognized upon the acquisition of 3,695 0 0 0 0 0 3,695 0 Interest expense on asset ceiling effect 225 135 0 0 0 0 225 135 Asset ceiling effect excluding interest expense and foreign currency asset ceiling effect (3,336) 1,189 0 0 0 0 (3,336) 1,189 Foreign currency translation 963 (54) 0 0 0 0 963 (54) Asset ceiling effect at the end of the year 9,394 7,848 0 0 0 0 9,394 7,848 Net defined benefit asset / (liability) of major plans 88 0 897 321 (519) (335) 466 (14) Net defined benefit asset / (liability) of remaining plans (173) (100) Total net defined benefit asset / (liability) 293 (114) of which: Net defined benefit asset 1,088 355 of which: Net defined benefit liability 3 (795) (469) 1 Including Credit Suisse actuarial assumptions and what has actually occurred. Income statement – expenses related to defined benefit plans 1 USD m Swiss plans UK plans US and German plans Total For the year ended 31.12.23 2 31.12.22 31.12.23 2 31.12.22 31.12.23 2 31.12.22 31.12.23 2 31.12.22 Current service cost 567 416 1 0 5 5 573 420 Interest expense related to defined benefit obligation 680 344 139 67 88 35 907 446 Interest income related to plan assets (916) (485) (173) (70) (70) (31) (1,159) (586) Interest expense on asset ceiling effect 225 135 0 0 0 0 225 135 Administration expenses, taxes and premiums paid 19 12 1 0 6 3 27 16 Past service cost related to plan amendments 245 0 0 0 0 0 245 0 Curtailments (29) (20) 0 0 0 0 (29) (20) Termination benefits 21 0 0 0 0 0 21 0 Other movements (2) 0 0 0 0 0 (2) 0 Net periodic expenses recognized in net profit for major plans 811 402 (32) (3) 30 12 808 411 Net periodic expenses recognized in net profit for remaining plans 3 38 25 Total net periodic expenses recognized in net profit 847 437 1 Refer to Note 7. Other comprehensive income – gains / (losses) on defined benefit plans USD m Swiss plans UK plans US and German plans Total For the year ended 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 31.12.23 1 31.12.22 Remeasurement of defined benefit obligation (4,446) 4,151 (195) 1,474 (37) 267 (4,678) 5,891 of which: change in discount rate assumption (3,278) 5,414 (165) 1,451 (51) 317 (3,495) 7,183 of which: change in rate of pension increase assumption 0 0 38 123 1 (5) 39 118 of which: change in rate of interest credit on retirement savings 479 (718) 0 0 (9) (82) 470 (800) of which: change in life expectancy 0 0 79 5 0 (1) 79 4 of which: change in other actuarial assumptions (162) (33) 0 1 10 48 (152) 16 of which: experience gains / (losses) 2 (1,484) (512) (146) (107) 12 (11) (1,619) (631) Return on plan assets excluding interest income 1,234 (3,248) 153 (1,312) 66 (223) 1,453 (4,782) Asset ceiling effect excluding interest expense and foreign currency 3,336 (1,189) 0 0 0 0 3,336 (1,189) Total gains / (losses) recognized in other comprehensive income for major plans 124 (285) (41) 162 28 43 111 (80) Total gains / (losses) recognized in other comprehensive income for remaining plans (2) 7 Total gains / (losses) recognized in other comprehensive income 3 110 (73) 1 Including Credit actuarial assumptions and what has actually occurred.
Disclosure of maturity analysis of expected benefit payments [text block]	Swiss plans UK plans US and German plans 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Duration of the defined benefit obligation (in years) 1 13.1 13.1 15.1 13.7 8.3 7.9 Maturity analysis of benefits expected to be paid USD m Benefits expected to be paid within 12 months 3,056 1,294 182 107 221 123 Benefits expected to be paid between 1 and 3 years 5,149 2,657 337 234 412 232 Benefits expected to be paid between 3 and 6 years 7,671 3,977 563 384 558 335 Benefits expected to be paid between 6 and 11 years 12,080 6,743 1,032 667 847 502 Benefits expected to be paid between 11 and 16 years 10,513 6,223 1,066 667 632 388 Benefits expected to be paid in more than 16 years 34,221 22,446 4,339 2,570 925 516 1 The duration of the defined benefit obligation represents a weighted average across UBS and
Disclosure of actuarial assumptions [text block]	Significant actuarial assumptions of 1 Swiss plans UK plans US plans German plans In % 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Discount rate 1.48 2.34 4.79 5.02 4.75 4.92 3.28 3.81 Rate of pension increase 0.00 0.00 2.94 3.08 0.00 0.00 2.10 2.20 Rate of interest credit on retirement savings 2.54 3.39 0.00 0.00 6.28 2 5.73 2 0.00 0.00 1 Represents weighted average across UBS and Credit Suisse plans.
Disclosure Of Sensitivity Analysis For Actuarial Assumptions Explanatory	Sensitivity analysis of significant actuarial 1 Increase / (decrease) in defined benefit obligation Swiss plans UK plans US and German plans USD m 31.12.23 31.12.22 31.12.23 31.12.22 31.12.23 31.12.22 Discount rate Increase by 50 basis points (2,365) (1,128) (243) (141) (91) (51) Decrease by 50 basis points 2,668 1,269 272 157 98 55 Rate of pension increase Increase by 50 basis points 1,894 877 204 127 10 4 Decrease by 50 basis points – 2 – 2 (189) (118) (9) (3) Rate of interest credit on retirement savings Increase by 50 basis points 334 178 – 3 – 3 9 9 Decrease by 50 basis points (334) (178) – 3 – 3 (8) (8) Life expectancy Increase in longevity by one additional year 1,315 593 108 65 64 39 1 The sensitivity analyses are based on a change in one increase was 0 % as of 31 December 2023 and as assumption is not applicable.
Disclosure of composition and fair value of plan assets [text block]	Composition and fair value of plan assets Swiss defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 1,205 0 1,205 2 326 0 326 1 Equity securities 0 24 24 0 0 0 0 0 0 2,132 2,132 4 0 0 0 0 Bonds 100 0 100 0 0 0 0 0 51 0 51 0 0 0 0 0 Real estate / property Domestic 0 6,195 6,195 11 0 3,783 3,783 13 Foreign 0 1,017 1,017 2 0 919 919 3 Investment funds Equity Domestic 1,376 0 1,376 3 743 0 743 2 Foreign 8,317 2,196 10,513 19 4,964 2,171 7,134 24 Bonds 1 Domestic, AAA to BBB– 7,952 0 7,952 15 3,760 0 3,760 12 Domestic, below BBB– 1 0 1 0 0 0 0 0 Foreign, AAA to BBB– 13,497 0 13,497 25 6,031 0 6,031 20 Foreign, below BBB– 1,249 0 1,249 2 1,062 0 1,062 4 Real estate Domestic 1,906 0 1,906 4 0 0 0 0 Foreign 537 79 616 1 0 0 0 0 Other 1,960 3,373 5,333 10 1,540 3,547 5,086 17 Other investments 667 569 1,236 2 624 651 1,275 4 Total fair value of plan assets 38,817 15,586 54,404 100 19,049 11,071 30,119 100 31.12.23 31.12.22 Total fair value of plan assets 54,404 30,119 of which: 2 Bank accounts at UBS 666 337 UBS debt instruments 211 50 UBS shares 72 27 Securities lent to UBS 3 827 871 Property occupied by UBS 108 90 Derivative financial instruments, counterparty UBS 3 534 76 1 The bond credit ratings from other rating agencies positions disclosed in the table encompass both direct investments in UBS instruments and financial instruments are presented amounted to negative USD 33 m as of 31 December 2023 (31 December 2022: negative USD 8 m). Composition and fair value of plan assets UK defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 225 0 225 5 104 0 104 4 Bonds 1 Domestic, AAA to BBB– 3,619 0 3,619 83 1,729 0 1,729 69 Domestic, below BBB– 7 0 7 0 0 0 0 0 Foreign, AAA to BBB– 509 0 509 12 297 0 297 12 Foreign, below BBB– 0 0 0 0 7 0 7 0 Investment funds Equity Domestic 9 3 12 0 19 3 22 1 Foreign 234 0 234 5 366 0 366 15 Bonds 1 Domestic, AAA to BBB– 310 38 348 8 367 90 457 18 Domestic, below BBB– 6 0 6 0 1 0 1 0 Foreign, AAA to BBB– 97 0 97 2 90 0 90 4 Foreign, below BBB– 93 0 93 2 114 0 114 5 Real estate Domestic 61 0 61 1 64 0 64 3 Foreign 4 12 16 0 6 31 36 1 Other 64 0 64 1 (280) 0 (280) (11) Repurchase agreements (947) 0 (947) (22) (612) 0 (612) (25) Other investments 15 5 20 0 66 27 94 4 Total fair value of plan assets 4,306 58 4,364 100 2,336 151 2,488 100 1 The bond credit ratings from other rating agencies were used, these were converted to the equivalent rating in S&P’s US and German defined benefit plans 31.12.23 31.12.22 Fair value Plan asset allocation % Fair value Plan asset allocation % USD m Quoted in an active market Other Total Quoted in an active market Other Total Cash and cash equivalents 32 0 32 2 7 0 7 1 Equity Domestic 54 0 54 3 55 0 55 5 Foreign 23 0 23 1 24 0 24 2 Bonds 1 Domestic, AAA to BBB– 308 0 308 17 359 0 359 35 Domestic, below BBB– 3 0 3 0 4 0 4 0 Foreign, AAA to BBB– 51 0 51 3 74 0 74 7 Foreign, below BBB– 2 0 2 0 3 0 3 0 Investment funds Equity Domestic 51 0 51 3 27 0 27 3 Foreign 82 18 100 5 33 0 33 3 Bonds 1 Domestic, AAA to BBB– 552 300 853 46 266 0 266 26 Domestic, below BBB– 172 41 213 12 109 0 109 10 Foreign, AAA to BBB– 75 14 89 5 2 0 2 0 Foreign, below BBB– 9 0 9 1 5 0 5 0 Real estate Domestic 1 9 10 1 0 11 11 1 Foreign 2 0 2 0 0 0 0 0 Other 51 0 52 3 54 0 54 5 Other investments (8) 5 (3) 0 5 1 6 1 Total fair value of plan assets 1,461 388 1,849 100 1,027 12 1,039 100 1 The bond credit ratings from other rating agencies were used, these were converted to the equivalent rating in S&P’s
Actuarial Assumption Of Mortality Rates [Member]
Disclosure Of Post-employment Benefit Plans Tables [Line Items]
Disclosure of actuarial assumptions [text block]	Mortality tables and life expectancies for Life expectancy at age 65 for a male member currently aged 65 aged 45 Country Mortality table 31.12.23 31.12.22 31.12.23 31.12.22 Switzerland BVG 2020 G with CMI 2022 projections 1 21.8 21.7 23.5 23.4 UK S3PA with CMI 2022 projections 2 22.2 3 23.5 23.4 3 24.6 USA Pri-2012 with MP-2021 projection scale 22.0 22.0 23.4 23.3 Germany Dr. K. Heubeck 2018 G 20.8 20.6 23.5 23.4 Life expectancy at age 65 for a female member currently aged 65 aged 45 Country Mortality table 31.12.23 31.12.22 31.12.23 31.12.22 Switzerland BVG 2020 G with CMI 2022 projections 1 23.5 23.5 25.1 25.1 UK S3PA with CMI 2022 projections 2 24.0 4 25.0 25.7 4 26.4 USA Pri-2012 with MP-2021 projection scale 23.5 23.4 24.8 24.8 Germany Dr. K. Heubeck 2018 G 24.2 24.0 26.4 26.3 1 In 2022, BVG 2020 G 23.1 24.3 Suisse plan female aged 65: 24.7 26.1

Employee benefits_ variable c_2

Employee benefits: variable compensation (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Equity Participation And Other Compensation Plans Tables [Line Items]
Disclosure of compensation-related personnel expenses [text block]	Variable compensation Expenses recognized in 2023 Expenses deferred to 2024 and later 1 USD m Related to the 2023 performance year Related to prior performance years Total Related to the 2023 performance year Related to prior performance years Total Non-deferred cash 2,859 (52) 2,807 0 0 0 Deferred compensation awards 523 656 1,179 777 757 1,534 of which: Equity Ownership Plan 155 330 485 263 245 509 of which: Deferred Contingent Capital Plan 180 241 421 312 451 763 of which: Long-Term Incentive Plan 164 40 204 160 34 193 of which: Fund Ownership Plan 24 46 69 41 27 68 Variable compensation – performance awards 3,382 604 3,986 777 757 1,534 Variable compensation – financial advisors 2 3,761 788 4,549 1,236 3,300 4,536 of which: non-deferred cash 3,440 (4) 3,436 0 0 0 of which: deferred share-based awards 110 87 197 113 209 321 of which: deferred cash-based awards 169 245 414 301 1,029 1,331 of which: compensation commitments with recruited financial 42 459 502 822 2,062 2,884 Variable compensation – other 3 784 526 1,310 384 583 968 Total variable compensation 7,927 1,918 9,845 4 2,398 4,640 7,037 1 Estimate as awards and is based on that are subject to vesting requirements. retention plan payments and 1,094 m in expenses related 689 m; other variable compensation: USD 208 m; financial advisor compensation: 197 m). A further USD 169 m in expenses related Note 7 (salaries: USD 4 m related to role-based 137 m; other personnel expenses: 27 m related to the settled compensation excluding social security was USD 1,087 m. Variable compensation (continued) Expenses recognized in 2022 Expenses deferred to 2023 and later 1 USD m Related to the 2022 performance year Related to prior performance years Total Related to the 2022 performance year Related to prior performance years Total Non-deferred cash 2,276 (16) 2,260 0 0 0 Deferred compensation awards 364 581 945 605 754 1,359 of which: Equity Ownership Plan 202 235 437 310 250 560 of which: Deferred Contingent Capital Plan 129 219 349 245 408 654 of which: Long-Term Incentive Plan 11 32 43 30 42 71 of which: Fund Ownership Plan 21 95 116 20 54 74 Variable compensation – performance awards 2,640 566 3,205 605 754 1,359 Variable compensation – financial advisors 2 3,799 709 4,508 1,290 2,652 3,942 of which: non-deferred cash 3,481 0 3,481 0 0 0 of which: deferred share-based awards 104 62 166 122 180 302 of which: deferred cash-based awards 185 215 400 588 636 1,224 of which: compensation commitments with recruited financial 29 432 461 580 1,836 2,416 Variable compensation – other 3 169 71 241 237 193 430 Total variable compensation 6,608 1,346 7,954 4 2,131 3,599 5,731 1 Estimate as awards and is based on that are subject to vesting requirements. 4 Includes USD 703 m in expenses related to share-based compensation (performance awards: USD 480 m; other variable compensation: USD 56 m; financial advisor compensation: USD 166 m). A further USD 88 m in expenses related to 4 m related to 61 m; other expenses: USD 23 m related to the Equity Plus Plan). Total personnel expense related to share-based equity-settled 716 m. Variable compensation (continued) Expenses recognized in 2021 Expenses deferred to 2022 and later 1 USD m Related to the 2021 performance year Related to prior performance years Total Related to the 2021 performance year Related to prior performance years Total Non-deferred cash 2,383 (10) 2,373 0 0 0 Deferred compensation awards 405 412 817 797 624 1,421 of which: Equity Ownership Plan 183 180 363 393 184 577 of which: Deferred Contingent Capital Plan 140 158 297 299 329 628 of which: Long-Term Incentive Plan 54 19 73 50 33 83 of which: Fund Ownership Plan 29 56 84 56 78 133 Variable compensation – performance awards 2,788 402 3,190 797 624 1,421 Variable compensation – financial advisors 2 4,175 685 4,860 1,097 2,323 3,419 of which: non-deferred cash 3,858 (6) 3,853 0 0 0 of which: deferred share-based awards 106 51 157 123 146 269 of which: deferred cash-based awards 170 202 372 311 495 806 of which: compensation commitments with recruited financial 41 438 479 662 1,682 2,344 Variable compensation – other 3 191 38 229 215 182 397 Total variable compensation 7,155 1,125 8,280 4 2,109 3,129 5,238 1 Estimate as of 31 compensable revenues and firm tenure using vesting requirements. USD 651 m in expenses related to share-based compensation 435 m; other variable compensation: USD 59 m; financial advisor compensation: USD 157 m). A further USD 85 m in expenses related to share-based 5 m related to 64 m; other personnel USD 16 m related to the Equity Plus Plan). Total personnel expense related to share-based equity-settled 641 m.
Disclosure of number and weighted average exercise prices of UBS share and performance share awards [text block]	Movements in outstanding share-based compensation Number of shares 2023 Weighted average grant date fair value (USD) Number of shares 2022 Weighted average grant date fair value (USD) Outstanding, at the beginning of the year 181,907,200 15 180,578,561 13 Share obligations assumed at merger date 14,535,612 20 Awarded during the year 63,907,823 20 62,203,770 18 Distributed during the year (54,365,846) 14 (54,639,882) 12 Forfeited during the year (7,076,202) 18 (6,235,249) 15 Outstanding, at the end of the year 198,908,588 17 181,907,200 15 of which: shares vested for accounting purposes 102,697,819 102,364,973

Interests in subsidiaries (Tabl

Interests in subsidiaries (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Interests In Subsidiaries Tables [Line Items]
Disclosure Of Significant Investments In Subsidiaries Explanatory	Individually significant subsidiaries Company Registered office Share capital in million Equity interest accumulated in % UBS AG Zurich and Basel, Switzerland USD 385.8 100.0 UBS Business Solutions AG 1 Zurich, Switzerland CHF 1.0 100.0 Credit Suisse AG Zurich, Switzerland CHF 4,399.7 100.0 Credit Suisse Services AG Zurich, Switzerland CHF 1.0 100.0 1 UBS Business Solutions AG holds subsidiaries in China, India, Israel and Poland.
Disclosure Of Investments In Associates And Joint Arrangements Explanatory	Investments in associates and joint ventures USD m 2023 2022 Carrying amount at the beginning of the year 1,101 1,243 Additions 1 3 Acquisition of the Credit Suisse Group 1,569 0 Reclassifications (33) (44) Share of comprehensive income (365) (41) of which: share of net profit / (loss) 1 (348) 32 of which: share of other comprehensive income 2 (17) (73) Share of changes in retained earnings (1) 0 Dividends received (90) (31) Foreign currency translation 192 (30) Carrying amount at the end of the year 2,373 1,101 of which: associates 2,164 1,098 of which: SIX Group AG, Zurich 1,646 954 of which: other associates 519 144 of which: joint ventures 209 3 1 For 2023, consists of negative USD 383 m from associates, partly offset by USD 34 m from joint ventures (for 2022, consists of 27 m from associates and USD 5 m from joint ventures). negative USD 17 m from associates (for 2022, consists of negative USD 73 m from associates).
Disclosure Of Interests In Unconsolidated Structured Entities Explanatory	Interests in unconsolidated structured entities 31.12.23 USD m, except where indicated Securitization vehicles 1 Client vehicles sponsored by UBS 2 Investment funds Other vehicles sponsored by third parties 3 Total Maximum exposure to loss 4 Financial assets at fair value held for trading 2,086 58 9,653 325 12,122 12,122 Derivative financial instruments 2 174 68 0 244 244 Loans and advances to customers 0 0 312 246 558 558 Financial assets at fair value not held for trading 1,645 0 497 579 2,720 2,720 Financial assets measured at fair value through other comprehensive income 0 0 0 0 0 0 Other financial assets measured at amortized cost 202 0 1 0 203 453 Total assets 3,935 232 10,531 1,151 15,848 16,098 Derivative financial instruments 7 27 590 0 623 98 Total liabilities 7 27 590 0 623 98 Assets held by the unconsolidated structured entities in which UBS had an interest (USD bn) 70 5 3 6 276 7 1 8 31.12.22 USD m, except where indicated Securitization vehicles 1,2 Client vehicles sponsored by UBS 2 Investment funds Other vehicles sponsored by third parties 3 Total Maximum exposure to loss 4 Financial assets at fair value held for trading 263 2 5,884 0 6,149 6,149 Derivative financial instruments 3 160 115 0 278 278 Loans and advances to customers 0 0 119 0 119 119 Financial assets at fair value not held for trading 0 0 225 0 225 225 Financial assets measured at fair value through other comprehensive income 0 0 0 0 0 0 Other financial assets measured at amortized cost 0 0 2 0 3 252 Total assets 266 162 6,345 0 6,773 7,023 Derivative financial instruments 1 35 763 0 798 2 Total liabilities 1 35 763 0 798 2 Assets held by the unconsolidated structured entities in which UBS had an interest (USD bn) 39 5 2 6 139 7 0 1 Includes loans with a high both UBS and third parties. from 31 December 2023, bonds periods restated. 852 m and 5,057 m as corresponding decrease in assets held by securitization vehicles in which 11 bn and a decrease in assets held by client 105 bn as of 31 December 2022. vehicles sponsored by third parties included loans not consider the risk-reducing effects of collateral or other credit enhancements. of the investment funds sponsored by UBS and the carrying amount of UBS’s interests in the investment by third parties.
UBS AG Subsidiaries
Disclosure Interests In Subsidiaries Tables [Line Items]
Disclosure Of Significant Investments In Subsidiaries Explanatory	Other subsidiaries of UBS AG and Credit Suisse Company Registered office Primary business Share capital in million Equity interest accumulated in % Banco de Investimentos Credit Suisse (Brasil) S.A. São Paulo, Brazil Investment Banking BRL 164.8 100.0 BANK-now AG Horgen, Switzerland Personal & Corporate Banking CHF 30.0 100.0 Credit Suisse (Hong Kong) Limited Hong Kong, China Investment Banking HKD 8,192.9 100.0 Credit Suisse (UK) Limited London, United Kingdom Global Wealth Management GBP 245.2 100.0 Credit Suisse (USA), Inc. Wilmington, United States Investment Banking USD 0.0 100.0 Credit Suisse Bank (Europe), S.A. Spain, Madrid Investment Banking EUR 18.0 100.0 Credit Suisse Funds AG Zurich, Switzerland Asset Management CHF 7.0 100.0 Credit Suisse Securities (Europe) Limited London, United Kingdom Non-core and Legacy USD 9.6 100.0 Credit Suisse Securities (Japan) Limited Tokyo, Japan Investment Banking JPY 78,100.0 100.0 Credit Suisse Securities (USA) LLC Wilmington, United States Non-core and Legacy USD 0.0 100.0 Credit Suisse Services (USA) LLC Wilmington, United States Group Items USD 0.0 100.0 DLJ Mortgage Capital, Inc. Wilmington, United States Non-core and Legacy USD 0.0 100.0 UBS Asset Management (Americas) Inc. Wilmington, Delaware, USA Asset Management USD 0.0 100.0 UBS Asset Management Life Ltd London, United Kingdom Asset Management GBP 15.0 100.0 UBS Business Solutions US LLC Wilmington, Delaware, USA Group Items USD 0.0 100.0 UBS Fund Management (Switzerland) AG Basel, Switzerland Asset Management CHF 1.0 100.0 UBS (Monaco) S.A. Monte Carlo, Monaco Global Wealth Management EUR 49.2 100.0 UBS Securities Australia Ltd Sydney, Australia Investment Bank AUD 0.3 1 100.0 UBS Securities Hong Kong Limited Hong Kong SAR, China Investment Bank HKD 2,841.6 100.0 UBS Securities Japan Co., Ltd. Tokyo, Japan Investment Bank JPY 34,708.7 100.0 UBS SuMi TRUST Wealth Management Co., Ltd. Tokyo, Japan Global Wealth Management JPY 5,165.0 51.0 1 Includes a nominal amount relating to redeemable preference shares.

Related parties (Tables)

Related parties (Tables)	12 Months Ended
	Dec. 31, 2023
Remuneration
Disclosure Of Transactions Between Related Parties [Line Items]
Disclosure Of Transactions Between Related Parties Explanatory	Remuneration of key management USD m, except where indicated 31.12.23 31.12.22 31.12.21 Base salaries and other cash payments 1 35 27 31 Incentive awards – cash 2 24 17 17 Annual incentive award under DCCP 36 25 26 Employer’s contributions to retirement benefit plans 3 2 3 Benefits in kind, fringe benefits (at market value) 1 1 1 Share-based compensation 3 63 45 45 Total 162 118 124 Total (CHF m) 4 147 114 113 1 May include role-based allowances in line is based on the composed of LTIP awards. For dollar amounts translated at the applicable performance award currency exchange rates (2023: USD / 0.91 ; 2022: USD / CHF 0.96 ; 2021: USD / CHF 0.92 ).
Equity holdings
Disclosure Of Transactions Between Related Parties [Line Items]
Disclosure Of Transactions Between Related Parties Explanatory	Equity holdings of key management personnel 1 31.12.23 31.12.22 Number of UBS Group AG shares held by members of the 2 5,121,564 3,009,686 1 No options were held in 2023 and 2022 by non-independent members provisions.
Key management personnel | Loans, advances and mortgages
Disclosure Of Transactions Between Related Parties [Line Items]
Disclosure Of Transactions Between Related Parties Explanatory	Loans, advances and mortgages to key management 1 USD m, except where indicated 2023 2022 Balance at the beginning of the year 33 34 Balance at the end of the year 2 61 33 Balance at the end of the year (CHF m) 2,3 52 31 1 All loans are secured loans. 14 m (CHF 12 m) unused uncommitted credit facilities as of 31 December 2023 and no unused uncommitted credit facilities as of 31 December 2022. amounts disclosed represent the respective US dollar amounts translated at the relevant year-end
Associates and joint ventures | Loans, advances and mortgages
Disclosure Of Transactions Between Related Parties [Line Items]
Disclosure Of Transactions Between Related Parties Explanatory	Loans to and outstanding receivables from associates USD m 2023 2022 Carrying amount at the beginning of the year 217 251 Additions 824 402 Reductions (796) (438) Foreign currency translation 26 1 Carrying amount at the end of the year 271 217 of which: unsecured loans and receivables 263 209 Other transactions with associates and As of or for the year ended USD m 31.12.23 31.12.22 Payments to associates and joint ventures for goods and services 190 138 Fees received for services provided to associates and joint ventures 24 4 Liabilities to associates and joint ventures 106 90 Commitments and contingent liabilities to associates 11 7

Invested assets and net new m_2

Invested assets and net new money (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure Of Invested Assets And Net New Money Tables [Line Items]
Disclosure of invested assets and net new money [text block]	Invested assets and net new money As of or for the year ended USD bn 31.12.23 31.12.22 1 Fund assets managed by UBS 624 390 Discretionary assets 1,996 1,464 Other invested assets 3,094 2,127 Total invested assets 2 5,714 3,981 of which: double counts 461 340 Net new money 2 80 76 1 Comparative figures have been restated to include net new money and invested assets from associates.
Development of invested assets	Development of invested assets USD bn 2023 2022 1 Total invested assets at the beginning of the year 2 3,981 4,614 Net new money 80 76 Market movements 3 428 (596) Foreign currency translation 91 (74) Other effects 1,134 (40) of which: acquisitions / (divestments) 1,180 (19) of which: Credit Suisse acquisition 1,205 0 Total invested assets at the end of the year 2 5,714 3,981 1 Comparative figures have been restated to include net new money and invested assets from associates.

Currency translation rates (Tab

Currency translation rates (Tables)	12 Months Ended
	Dec. 31, 2023
Foreign Exchange Rates Tables [Line Items]
Disclosure of foreign exchange rates [text block]	Closing exchange rate Average rate 1 As of For the year ended 31.12.23 31.12.22 31.12.23 31.12.22 31.12.21 1 CHF 1.19 1.08 1.12 1.05 1.09 1 EUR 1.10 1.07 1.08 1.05 1.18 1 GBP 1.28 1.21 1.25 1.23 1.37 100 JPY 0.71 0.76 0.70 0.76 0.91 1 Monthly income statement items of twelve month-end rates, weighted according to the income and expense volumes of all operations year 2023 consider income and expenses from weighted average rates for the Group.

MD&A - Risk management and co_2

MD&A - Risk management and control - Credit Risk (Tables)	12 Months Ended
	Dec. 31, 2023
MDA Risk Management And Control Credit Risk Tables [Line Items]
Internal UBS rating scale and mapping of external ratings [text block]	Internal UBS rating scale and mapping of external ratings Internal UBS rating 1-year PD range in % Description Moody’s Investors Service mapping S&P mapping Fitch mapping 0 and 1 0.00–0.02 Investment grade Aaa AAA AAA 2 0.02–0.05 Aa1 to Aa3 AA+ to AA– AA+ to AA– 3 0.05–0.12 A1 to A3 A+ to A– A+ to A– 4 0.12–0.25 Baa1 to Baa2 BBB+ to BBB BBB+ to BBB 5 0.25–0.50 Baa3 BBB– BBB– 6 0.50–0.80 Sub-investment grade Ba1 BB+ BB+ 7 0.80–1.30 Ba2 BB BB 8 1.30–2.10 Ba3 BB– BB– 9 2.10–3.50 B1 B+ B+ 10 3.50–6.00 B2 B B 11 6.00–10.00 B3 B– B– 12 10.00–17.00 Caa1 to Caa2 CCC+ to CCC CCC+ to CCC 13 >17 Caa3 to C CCC- to C CCC- to C Counterparty is in default Default Defaulted D D

MD&A - Risk management and co_3

MD&A - Risk management and control - Market Risk (Tables)	12 Months Ended
	Dec. 31, 2023
MDA Risk Management And Control Market Risk Tables [Line Items]
Disclosure of detailed information about management value-at-risk [text block]	Management value-at-risk (1-day, 95% confidence, 5 years of historical data) of our business divisions and Group Items excluding Credit Suisse components by general market risk type 1 For the year ended 31.12.23 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 3 9 3 1 1 Max. 19 21 19 10 10 Average 9 12 6 2 3 31.12.23 11 19 7 2 3 Total management VaR 7 25 15 19 Average (per business division and risk type) Global Wealth Management 1 2 1 2 0 1 2 0 0 Personal & Corporate Banking 0 0 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 5 23 14 18 9 12 5 2 3 Non-core and Legacy 1 2 1 1 0 1 1 0 0 Group Items 3 6 4 5 1 4 3 1 0 Diversification effect 2,3 (6) (7) (1) (5) (4) (1) 0 For the year ended 31.12.22 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 2 8 4 2 2 Max. 17 18 9 11 7 Average 6 10 5 3 3 31.12.22 6 10 4 3 3 Total management VaR 6 18 11 9 Average (per business division and risk type) Global Wealth Management 1 2 1 1 0 1 1 0 0 Personal & Corporate Banking 0 0 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 6 17 10 8 6 9 5 3 3 Group Functions (including Non-core and Legacy Portfolio) 3 5 4 5 1 4 3 1 0 Diversification effect 2,3 (5) (5) (1) (3) (4) (1) 0 Management value-at-risk (1-day, 98% confidence, 2 years of historical data) of the Credit Suisse components of our business divisions and Group Items by general market risk type 1,4 For the year ended 31.12.23 USD m Equity Interest rates Credit spreads Foreign exchange Commodities Min. 9 10 13 0 0 Max. 17 40 34 5 3 Average 13 17 20 2 1 31.12.23 13 12 13 1 0 Total management VaR 20 46 29 21 Average (per business division and risk type) Global Wealth Management 2 16 10 2 1 1 10 0 0 Personal & Corporate Banking 0 1 0 0 0 0 0 0 0 Asset Management 0 0 0 0 0 0 0 0 0 Investment Bank 0 1 0 0 0 0 0 0 0 Non-core and Legacy 5 18 36 23 19 13 13 17 2 1 Group Items 0 3 2 0 0 2 2 0 0 Diversification effect 2,3 (7) (1) (1) 2 (9) 0 0 1 Statistics at individual levels may not be summed to deduce the corresponding aggregate figures. business line or risk type, being driven time series, rendering invalid the simple summation of figures to arrive at the aggregate total. 3 As the minima and maxima for different business divisions and Group Items occur on different days, it is not meaningful to calculate a portfolio diversification effect. AG consolidated introduced respective risk type only, ignoring the cross-risk effects. This with no impact on the total management VaR.
Disclosure of interest rate sensitivity - banking book [text block]	Interest rate risk – banking book 31.12.23 USD m Effect on EVE 1 Effect on EVE 1 Scenarios CHF EUR GBP USD Other Total Additional tier 1 (AT1) capital instruments Total +1 bp (3.7) (0.6) 0.1 (26.0) 0.2 (30.1) 4.9 (25.2) Parallel up 2 (548.9) (119.3) 16.2 (5,027.2) (0.9) (5,680.2) 904.6 (4,775.5) Parallel down 2 561.8 124.3 (29.2) 5,216.0 2.8 5,875.7 (1,044.5) 4,831.3 Steepener 3 (305.3) (13.1) (11.9) (1,037.0) (33.8) (1,401.1) 93.4 (1,307.6) Flattener 4 189.6 (5.0) 14.0 (124.2) 30.8 105.2 109.6 214.8 Short-term up 5 (27.3) (39.4) 19.4 (2,171.3) 23.9 (2,194.7) 486.3 (1,708.4) Short-term down 6 26.5 41.8 (21.8) 2,312.1 (26.8) 2,331.9 (507.8) 1,824.1 31.12.22 USD m Effect on EVE 1 Effect on EVE 1 Scenarios CHF EUR GBP USD Other Total Additional tier 1 (AT1) capital instruments Total +1 bp (4.0) (0.7) 0.1 (20.4) (0.1) (25.0) 3.4 (21.6) Parallel up 2 (574.6) (117.0) 33.2 (3,944.3) (26.3) (4,629.1) 649.7 (3,979.4) Parallel down 2 642.3 148.1 (45.4) 4,074.9 21.9 4,841.7 (699.8) 4,141.9 Steepener 3 (257.0) (92.8) (28.2) (1,027.4) (3.3) (1,408.7) (46.8) (1,455.5) Flattener 4 145.4 74.1 32.6 94.4 (2.5) 344.0 189.9 533.9 Short-term up 5 (83.0) 34.3 42.2 (1,519.0) (13.8) (1,539.2) 438.6 (1,100.6) Short-term down 6 86.9 (33.1) (42.5) 1,658.5 13.4 1,683.1 (455.5) 1,227.6 1 Economic value increase.

Share capital (Narrative) (Deta

Share capital (Narrative) (Detail)	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2023 SFr / shares	Dec. 31, 2020 shares
Ordinary share capital
Shares issued | shares	3,462,087,722	3,524,635,722	3,702,422,995		3,859,055,395
Par value of shares | $ / shares	$ 0.10
Share capital	$ 346,208,772.20
Shares issued / (canceled) | shares	(62,548,000)	(177,787,273)	(156,632,400)
Cancellation of treasury shares related to the share repurchase program	$ 0	$ 0	$ 0
Cancellation of second trading line treasury shares | shares	62,548,000	177,787,273	(156,632,400)
Par value per share before alignment with entity's presentation currency | SFr / shares				SFr 0.10
Conditional share capital
Additional shares that could have been issued to fund UBS's employee share option programs | shares	121,705,830
Value of available shares to fund UBS employee share option programs	$ 12,170,583
Additional conditional capital available for conversion rights and warrants granted in connection with the issuance of bonds or similar financial instruments | shares	380,000,000
Value of additional conditional capital available for conversion rights and warrants granted in connection with the issuance of bonds or similar financial instruments	$ 38,000,000
Share capital
Ordinary share capital
Cancellation of treasury shares related to the share repurchase program	(7,000,000)	$ (18,000,000)	$ (16,000,000)
Treasury shares
Ordinary share capital
Cancellation of treasury shares related to the share repurchase program	$ 1,115,000,000	$ 3,022,000,000	$ 2,044,000,000

Share repurchase program (Narra

Share repurchase program (Narrative) (Detail) SFr in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 CHF (SFr) shares	Dec. 31, 2022 USD ($) shares
Credit Suisse
Share Repurchse Program [Line Items]
Shares transferred as consideration for the acquisition	(175,649,481)	(175,649,481)
From 2021
Share Repurchse Program [Line Items]
Maximum amount intended for the purchase of own registered shares as part of the share repurchase program | SFr	SFr 4,000
Shares aquired as part of the share repurchase program	62,548,000	62,548,000	177,787,273	177,787,273
Amount invested to aquire own registered shares as part of the share repurchase program	SFr 1,035	$ 1,115	SFr 2,775	$ 3,022
From 2022
Share Repurchse Program [Line Items]
Maximum amount intended for the purchase of own registered shares as part of the share repurchase program | $		$ 6,000
Shares aquired as part of the share repurchase program	64,600,000	64,600,000
Amount invested to aquire own registered shares as part of the share repurchase program	SFr 1,202	$ 1,300
Shares originally intended for cancellation purposes	178,000,000	178,000,000
From 2023
Share Repurchse Program [Line Items]
Maximum amount intended for the purchase of own registered shares as part of the share repurchase program | $		$ 6,000

Reclassification of financial a

Reclassification of financial assets (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Apr. 01, 2022
Disclosure Of Reclassification Of Financial Assets [Line Items]
Reclassification of financial assets out of measured at fair value through other comprehensive income into measured at amortised cost	$ 6,900
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)
Carrying amount of financial assets reclassified out of fair value through other comprehensive income category into amortised cost category		$ 7,400

Accounting for the acquisitio_3

Accounting for the acquisition of the Credit Suisse Group (Narrative) (Detail) - USD ($) $ in Millions	Jun. 12, 2023	Dec. 31, 2023
Disclosure Of Business Combinations [Line items]
Acquisition-related contingent liabilities		$ 3,832
Credit Suisse
Disclosure Of Business Combinations [Line items]
Exchange ratio (1 to 22.48)	1/22.48
Percentage of outstanding UBS Group AG shares received by Credit Suisse Group AG shareholders	5.10%
Purchase price consideration, after consideration of share-based compensation awards	$ 3,710
Conversion impact from the different derivative netting rules	70,000
Fair value adjustments to assets and liabilities of Credit Suisse	(14,900)
Fair value adjustments recognized on financial instruments that are classified at fair value through profit or loss	(4,800)
Fair value adjustments recognized on financial instruments at amortized cost and off-balance sheet commitments and guarantees	(10,100)
Provisional fair value of core deposits and customer relationships intangibles	900
Additional provisions and contingent liabilities	5,400
Mortgage servicing rights	400
Litigation provisions	1,600
Existing provisions recognized by Credit Suisse Group	1,300
Acquisition-related contingent liabilities		$ 3,800
Contingent liabilities for certain obligations in respect of litigation	3,800
Increase in contingent liabilities related to litigation	800
Contingent liabilities for certain obligations in respect of litigation recognised in business combination as of acquisition date before measurement period adjustment	3,000
increase in litigation provisions	45
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	2,300
Fair value loan commitments within Derivative financial instruments liabilities	$ 2,200

Accounting for the acquisitio_4

Accounting for the acquisition of the Credit Suisse Group - Determination of the purchase price consideration (Detail) SFr / shares in Units, shares in Millions, SFr in Millions, $ in Millions		12 Months Ended
	Jun. 12, 2023 USD ($)	Dec. 31, 2023 USD ($)	Jun. 12, 2023 CHF (SFr) SFr / shares shares	Jun. 12, 2023 USD ($) shares
Disclosure Of Determination Of The Purchase Price Consideration [Line Items]
Purchase price consideration, before consideration of share-based compensation awards				$ 3,547
Credit Suisse
Disclosure Of Determination Of The Purchase Price Consideration [Line Items]
Credit Suisse Group ordinary shares outstanding, 12 June 2023 | shares			3,949	3,949
Exchange ratio (1 to 22.48)			4%	4%
UBS ordinary shares | shares			176	176
UBS ordinary share price | SFr / shares			SFr 18.35
Purchase price consideration, before consideration of share-based compensation awards | SFr			SFr 3,223
Purchase price consideration, before consideration of share-based compensation awards using exchange rate of 1.10		$ 3,547		$ 3,547
Impact of share-based compensation awards from Credit Suisse Group acquisition		162		162
Purchase price consideration, after consideration of share-based compensation awards				3,710
Settlement of pre-existing relationships				135
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: cash and balances at central banks	93,012
of which: amounts due from banks	12,601
of which: money market paper	$ 2,897

Accounting for the acquisitio_5

Accounting for the acquisition of the Credit Suisse Group - Credit Suisse Group net identifiable assets on the acquisition date (Detail) - Credit Suisse - USD ($) $ in Millions		12 Months Ended
	Jun. 12, 2023	Dec. 31, 2023
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	247,219
Other financial assets measured at amortized cost	13,428
Total financial assets measured at amortized cost	414,322
Financial assets at fair value held for trading	56,237
Derivative financial assets	62,162
Brokerage receivables	366
Financial assets at fair value not held for trading	54,199
Total financial assets measured at fair value through profit or loss	172,964
Financial assets measured at fair value through other comprehensive income	0
Investments in associates	1,569
Property, equipment and software	6,055
Deferred tax assets	998
Intangible assets	1,287
Other non-financial assets	6,892
Total assets	604,088
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 Liabilities	67,782
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	126,292
Provisions and contingent liabilities	9,945
Other non-financial liabilities	3,901
Total liabilities	572,209
Fair value of net assets acquired	31,594
Settlement of pre-existing relationships	135
Provisional negative goodwill resulting from the acquisition	27,748	$ 27,748
Non-controlling Interests	(285)
As previously reported
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 Liabilities	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
Fair value of net assets acquired	32,771
Settlement of pre-existing relationships	135
Provisional negative goodwill resulting from the acquisition	28,925
Non-controlling Interests	(285)
Measurement period adjustments
Assets
Loans and advances to customers	(14,620)
Other financial assets measured at amortized cost	(12)
Total financial assets measured at amortized cost	(14,632)
Financial assets at fair value held for trading	21,191
Financial assets at fair value not held for trading	(7,106)
Total financial assets measured at fair value through profit or loss	14,085
Investments in associates	(88)
Deferred tax assets	56
Total assets	(579)
Liabilities
Derivative Financial Liabilities	1,691
Total financial liabilities measured at fair value through profit or loss	1,691
Provisions and contingent liabilities	(1,107)
Other non-financial liabilities	13
Total liabilities	598
Fair value of net assets acquired	(1,177)
Provisional negative goodwill resulting from the acquisition	$ (1,177)

Accounting for the acquisitio_6

Accounting for the acquisition of the Credit Suisse Group - Credit Suisse Group net identifiable assets on the acquisition date (Narrative) (Detail) - Credit Suisse - USD ($) $ in Millions		3 Months Ended		7 Months Ended	12 Months Ended
	Jun. 12, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2023
Disclosure Of Recognized Amounts Of Identifiable Assets Acquired And Liabilities Assumed [Line Items]
Notional value of loan commitments reclassified to derivative loan commitments measured at fair value through profit or loss	$ 27,500
Fair value of loan commitments reclassified to derivative loan commitments measured at fair value through profit or loss	2,000
Measurement period adjustment remeasurement of derivative liabilities	(300)
Measurement period adjustment remeasurement of financial assets at fair value held for trading	(300)
Reversal of stage 1 and 2 expected credit losses			$ 100
Increase in net profit			100
Interest income reclassified to Net interest income from financial instruments measured at fair value through profit or loss and other		$ 200	$ 100
Reclassification of Financial assets reported at fair value not held for trading to Financial assets at fair value held for trading	7,100
Decrease in the fair value for loans and advances to customers measured at amortized cost	(300)
IFRS 3 measurement period adjustment remeasurement of contingent liabilities and provisions	900
Increase in contingent liabilities related to litigation	800
increase in litigation provisions	45
Provisional negative goodwill resulting from the acquisition	27,748				$ 27,748
Acquisition-related costs					200
Gains on derecognition of Non-core and Legacy loans				$ 100
Gains on derecognition of Non-core and Legacy loan commitments				600
Credit Suisse contribution to net revenues of the Group				7,600
Credit Suisse contribution to net profit of the Group				$ 3,500
Estimated net revenues for the Group					46,100
Estimated profit loss for the Group					$ 2,100
Gain from the write-down of additional tier 1 capital notes	16,400
Goodwill impairment charge	1,400
Gain from the reversal of contingent compensation award accrual	400
As previously reported
Disclosure Of Recognized Amounts Of Identifiable Assets Acquired And Liabilities Assumed [Line Items]
Provisional negative goodwill resulting from the acquisition	28,925
Measurement period adjustments
Disclosure Of Recognized Amounts Of Identifiable Assets Acquired And Liabilities Assumed [Line Items]
Provisional negative goodwill resulting from the acquisition	(1,177)
Non-core and Legacy
Disclosure Of Recognized Amounts Of Identifiable Assets Acquired And Liabilities Assumed [Line Items]
Loans and advances to customers reclassified out of measured at amortized cost into measured at fair value held for trading	14,300
Other financial assets reclassified out of measured at amortized cost into measured at fair value held for trading	$ 12

Accounting for the acquisitio_7

Accounting for the acquisition of the 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

Accounting for the acquisitio_8

Accounting for the acquisition of the Credit Suisse Group - Pre-existing relationships (Narrative) (Detail) - Credit Suisse $ in Billions		7 Months Ended	12 Months Ended
	Jun. 12, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 d
Disclosure Of Preexisting Relationships [Line Items]
Retention awards	$ 0.5
Percentage of retention awards offered in cash	50%		50%
Vesting requirement for payment arrangement	60		60
Percentage of retention awards offered in shares	50%		50%
Expenses on retention awards		$ 0.3

Segment reporting (Detail)

Segment reporting (Detail) - USD ($) $ in Millions		12 Months Ended
	Jun. 12, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Operating Segments [Line Items]
Total revenues		$ 40,834	$ 34,563	$ 35,393
Credit loss expense / (release)		1,037	29	(148)
Operating expenses		38,806	24,930	26,058
Operating profit / (loss) before tax		28,739	9,604	9,484
Tax expense / (benefit)		873	1,942	1,998
Net profit / (loss)		27,866	7,661	7,486
Additional information
Total assets		1,717,246	1,104,364	1,117,182
Effect of change in methodology of allocation of balance sheet resources from Group Items to business divisions if applied retrospectively				26,000
Additions to non-current assets		10,714	2,060	2,091
Net gains / (losses) from disposals of investments in associates and joint ventures		4	844	41
Credit Suisse
Disclosure Of Operating Segments [Line Items]
Negative goodwill	$ 27,748	27,748
Operating profit / (loss) before tax		27,748
Credit Suisse
Additional information
Total assets		583,197
Additions to non-current assets		9,056
Mitsubishi Corp.-UBS Realty Inc.
Additional information
Net gains / (losses) from disposals of investments in associates and joint ventures			848
Global Wealth Management
Disclosure Of Operating Segments [Line Items]
Total revenues		21,190	18,967	19,419
Credit loss expense / (release)		147	0	(29)
Operating expenses		17,454	13,989	14,665
Operating profit / (loss) before tax		3,589	4,977	4,783
Additional information
Total assets		469,240	388,530	395,235
Additions to non-current assets		2,584	42	56
Global Wealth Management | Credit Suisse
Additional information
Additions to non-current assets		1,795
Personal & Corporate Banking
Disclosure Of Operating Segments [Line Items]
Total revenues		8,436	4,302	4,263
Credit loss expense / (release)		501	39	(86)
Operating expenses		4,787	2,452	2,618
Operating profit / (loss) before tax		3,148	1,812	1,731
Additional information
Total assets		470,526	235,226	225,370
Additions to non-current assets		3,279	13	16
Personal & Corporate Banking | Credit Suisse
Additional information
Additions to non-current assets		3,020
Asset Management
Disclosure Of Operating Segments [Line Items]
Total revenues		2,639	2,961	2,617
Credit loss expense / (release)		0	0	1
Operating expenses		2,321	1,564	1,586
Operating profit / (loss) before tax		318	1,397	1,030
Additional information
Total assets		21,804	17,348	25,639
Additions to non-current assets		709	1	1
Asset Management | Credit Suisse
Additional information
Additions to non-current assets		626
Asset Management | Mitsubishi Corp.-UBS Realty Inc.
Additional information
Net gains / (losses) from disposals of investments in associates and joint ventures			848
Investment Bank
Disclosure Of Operating Segments [Line Items]
Total revenues		8,661	8,717	9,454
Credit loss expense / (release)		190	(12)	(34)
Operating expenses		8,515	6,832	6,858
Operating profit / (loss) before tax		(44)	1,897	2,630
Additional information
Total assets		399,348	391,320	346,431
Effect of change in methodology of allocation of balance sheet resources from Group Items to business divisions if applied retrospectively				14,000
Additions to non-current assets		530	34	30
Investment Bank | Credit Suisse
Additional information
Additions to non-current assets		3
Non-core and Legacy
Disclosure Of Operating Segments [Line Items]
Total revenues		741	237	60
Credit loss expense / (release)		193	2	0
Operating expenses		5,290	104	138
Operating profit / (loss) before tax		(4,741)	131	(79)
Additional information
Total assets		172,862	13,367	25,153
Additions to non-current assets		3,062	0	0
Non-core and Legacy | Credit Suisse
Additional information
Additions to non-current assets		3,062
Group Items
Disclosure Of Operating Segments [Line Items]
Total revenues		(833)	(622)	(419)
Credit loss expense / (release)		6	1	0
Operating expenses		440	(12)	191
Operating profit / (loss) before tax		(1,279)	(611)	(611)
Additional information
Total assets		183,465	58,574	99,354
Additions to non-current assets		550	$ 1,970	$ 1,989
Group Items | Credit Suisse
Additional information
Additions to non-current assets		$ 550

Segment reporting by geographic

Segment reporting by geographic location (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 27.7	$ 19.7	$ 20.5
Total non-current assets (Share %)	100%	100%	100%
Americas
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 9.4	$ 8.9	$ 9
Total non-current assets (Share %)	34%	46%	44%
Asia Pacific
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 1.7	$ 1.5	$ 1.5
Total non-current assets (Share %)	6%	8%	7%
Europe, Middle East and Africa (excluding Switzerland)
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 3.3	$ 2.9	$ 2.9
Total non-current assets (Share %)	12%	15%	14%
Switzerland
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 13.3	$ 6.3	$ 7.1
Total non-current assets (Share %)	48%	32%	35%
Global
Disclosure Of Geographical Areas [Line Items]
Total non-current assets	$ 0	$ 0	$ 0
Total non-current assets (Share %)	0%	0%	0%

Net interest income and other_2

Net interest income and other net income from fair value changes on financial instruments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Interest Income And Other Net Income From Fair Value Changes On Financial Instruments [Line Items]
Other net income from financial instruments measured at fair value through profit or loss	$ 11,583	$ 7,517	$ 5,850
of which: net gains / (losses) from financial liabilities designated at fair value	(4,843)	17,037	(6,582)
Net income from financial instruments measured at fair value through profit or loss and other	15,353	8,920	7,281
Interest income from loans and deposits	28,569	9,612	6,488
Interest income from securities financing transactions measured at amortised cost	3,948	1,378	513
Interest income from other financial instruments measured at amortized cost	1,187	545	284
Interest income from debt instruments measured at fair value through other comprehensive income	103	74	115
Interest income from derivative instruments designated as cash flow hedges	(2,064)	173	1,133
Total interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	31,743	11,782	8,533
Interest expense on loans and deposits	15,011	2,579	523
Interest expense on securities financing transactions measured at amortised cost	1,968	1,089	1,102
Interest expense on debt issued	11,072	2,803	1,533
Interest expense on lease liabilities	166	92	102
Total interest expense from financial instruments measured at amortized cost	28,216	6,564	3,259
Total net interest income from financial instruments measured at amortized cost and fair value through other comprehensive income	3,527	5,218	5,274
Net interest income from financial instruments measured at fair value through profit or loss and other	3,770	1,403	1,431
Total net interest income	7,297	6,621	6,705
Total combined net interest income and other net income from financial instruments measured at fair value through profit or loss	18,880
Increase / (decrease) in total combined net interest income and other net income from financial instruments measured at fair value through profit or loss	4,743
Asset Management
Net Interest Income And Other Net Income From Fair Value Changes On Financial Instruments [Line Items]
Net gains / (losses) on financial liabilities related to unit-linked investment contracts, which are designated at fair value through profit of loss	(2,045)	$ 4,112	$ (2,068)
Credit Suisse
Net Interest Income And Other Net Income From Fair Value Changes On Financial Instruments [Line Items]
Accretion of purchase price allocation (PPA) adjustments included in total combined net interest income and other net income from financial instruments measured at fair value through profit or loss	1,533
Credit Suisse
Net Interest Income And Other Net Income From Fair Value Changes On Financial Instruments [Line Items]
Total combined net interest income and other net income from financial instruments measured at fair value through profit or loss	$ 4,302

Net fee and commission income_2

Net fee and commission income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net fee And Commission Income [Line Items]
Underwriting fees	$ 568	$ 579	$ 1,463
M&A and corporate finance fees	840	804	1,102
Brokerage fees	3,542	3,484	4,382
Investment fund fees	4,837	4,942	5,790
Portfolio management and related services	10,673	9,059	9,762
Other	3,306	1,920	1,874
Total fee and commission income	23,766	20,789	24,372
Total fee and commission expense	2,195	1,823	1,985
Net fee and commission income	21,570	18,966	22,387
Global Wealth Management
Net fee And Commission Income [Line Items]
Total fee and commission income	13,753	12,990	14,545
Personal & Corporate Banking
Net fee And Commission Income [Line Items]
Total fee and commission income	2,733	1,654	1,644
Asset Management
Net fee And Commission Income [Line Items]
Total fee and commission income	3,325	2,840	3,337
Investment Bank
Net fee And Commission Income [Line Items]
Total fee and commission income	3,955	3,296	4,814
Group Items
Net fee And Commission Income [Line Items]
Total fee and commission income	(128)	10	33
Non-core and Legacy
Net fee And Commission Income [Line Items]
Total fee and commission income	128	0	0
of which: recurring
Net fee And Commission Income [Line Items]
Total fee and commission income	15,911	14,229	15,410
of which: transaction-based
Net fee And Commission Income [Line Items]
Total fee and commission income	7,761	6,492	8,692
of which: performance-based
Net fee And Commission Income [Line Items]
Total fee and commission income	$ 94	$ 68	$ 269

Net fee and commission income_3

Net fee and commission income (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net fee And Commission Income [Line Items]
Fee And Commission Income Expense	$ 21,570	$ 18,966	$ 22,387
Increase / (decrease) of net fee and commission income	2,604
Credit Suisse
Net fee And Commission Income [Line Items]
Fee And Commission Income Expense	3,010
Credit Suisse
Net fee And Commission Income [Line Items]
Accretion of purchase price allocation (PPA) adjustments included in Other	$ 747

Other income (Detail)

Other income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Associates, joint ventures and subsidiaries
Net gains / (losses) from acquisitions and disposals of subsidiaries	$ 24	$ 148	$ (11)
Net gains / (losses) from disposals of investments in associates and joint ventures	4	844	41
Share of net profits of associates and joint ventures	(348)	32	105
Total	(319)	1,024	135
Net gains / (losses) from disposals of financial assets measured at fair value through other comprehensive income	3	(1)	9
Income from properties	39	20	23
Net gains / (losses) from properties held for sale	12	24	100
Other	648	391	185
Total other income	384	1,459	452
Gains losses on repurchase of entity's own debt instruments	160	98	$ (60)
Other income related to a legacy bankruptcy claim	111
Credit Suisse
Associates, joint ventures and subsidiaries
Mortgage servicing rights fee income	174
UBS Wealth Management business in Spain
Associates, joint ventures and subsidiaries
Other	111
Gains (losses) on the sale of subsidiaries	133
Mitsubishi Corp.-UBS Realty Inc.
Associates, joint ventures and subsidiaries
Net gains / (losses) from disposals of investments in associates and joint ventures		848
SIX Group AG, Zurich
Associates, joint ventures and subsidiaries
Impairments related to associates	508
SIX Group AG, Zurich | Personal & Corporate Banking
Associates, joint ventures and subsidiaries
Impairments related to associates	317
SIX Group AG, Zurich | Global Wealth Management
Associates, joint ventures and subsidiaries
Impairments related to associates	$ 190
Wealth management business in Austria
Associates, joint ventures and subsidiaries
Other		$ 100

Personnel expenses (Detail)

Personnel expenses (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Personnel Expenses [Line Items]
Salaries	$ 10,997	$ 7,045	$ 7,339
Variable compensation	9,845	7,954	8,280
of which: performance awards	3,986	3,205	3,190
of which: financial advisors	4,549	4,508	4,860
of which: other	1,310	241	229
Contractors	334	323	381
Social security	1,473	944	978
Post-employment benefit plans	1,361	794	833
of which: defined benefit plans	847	437	470
of which: defined contribution plans	514	357	363
Other personnel expenses	890	621	576
Total personnel expenses	24,899	17,680	18,387
Curtailments	$ 29	$ 20	$ 80

Personnel expenses (Narrative)

Personnel expenses (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Personnel Expenses [Line Items]
Total personnel expenses	$ 24,899	$ 17,680	$ 18,387
Increase / (decrease) in personnel expenses	7,219
Integration-related personnel expenses	2,192
Credit Suisse
Personnel Expenses [Line Items]
Total personnel expenses	$ 6,330

General and administrative ex_3

General and administrative expenses (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
General And Administrative Expenses [Line Items]
Outsourcing costs	$ 1,492	$ 896	$ 893
Technology costs	1,851	1,146	1,055
Consulting, legal and audit fees	1,619	592	540
Real estate and logistics costs	1,342	605	634
Market data services	684	419	417
Marketing and communication	408	265	242
Travel and entertainment	278	172	72
Litigation, regulatory and similar matters	809	348	911
Other	1,673	746	788
Total general and administrative expenses	10,156	$ 5,189	$ 5,553
Onerous contracts provision
General And Administrative Expenses [Line Items]
Other	$ 296

General and administrative ex_4

General and administrative expenses (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
General And Administrative Expenses [Line Items]
General and administrative expenses	$ 10,156	$ 5,189	$ 5,553
Increase / decrease in general and administrative expenses	4,967
Integration-related general and administrative expenses	1,436
Credit Suisse
General And Administrative Expenses [Line Items]
General and administrative expenses	202
Credit Suisse
General And Administrative Expenses [Line Items]
General and administrative expenses	$ 3,000

Income taxes (Narrative) (Detai

Income taxes (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Income Taxes [Line Items]
Effective tax rate	3%
Projected tax rate	23%
Net tax expense / (benefit) recognized in other comprehensive income	$ 314	$ (1,116)
Net tax expense / (benefit) recognized in share premium	(19)	$ (13)	$ 88
Non-Swiss
Disclosure Income Taxes [Line Items]
Current tax expense (benefit) from US corporate alternative minimum tax	100
Current tax expense (benefit) from Non-Swiss Subsidiaries and Branches	584
Deferred tax expense / (benefit) resulting from the remeasurement of DTAs	(754)
Deferred tax expense / (benefit) resulting from the net upward remeasurement of DTAs for certain entities	(480)
Deferred tax expense / (benefit) resulting from the decrease or increase in the expected value of future tax deductions for deferred compensation awards	(274)
Deferred tax expense / (benefit) resulting from recognition of DTAs for tax credits carried forward	(100)
Net deferred tax expense / (benefit)	$ 8

Income taxes (Detail 1)

Income taxes (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Major Components Of Tax Expense Income [Line Items]
Current tax expense / (benefit)	$ 1,600
Income tax expense / (benefit)	873	$ 1,942	$ 1,998
Swiss
Major Components Of Tax Expense Income [Line Items]
Current tax expense / (benefit)	883	730	680
Deferred tax expense / (benefit)	152	(15)	34
Income tax expense / (benefit)	1,035	715	714
Non-Swiss
Major Components Of Tax Expense Income [Line Items]
Current tax expense / (benefit)	684	718	884
Deferred tax expense / (benefit)	(846)	509	400
Income tax expense / (benefit)	$ (162)	$ 1,227	$ 1,284

Income taxes (Detail 2)

Income taxes (Detail 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Major Components Of Tax Expense Income [Line Items]
Operating profit / (loss) before tax	$ 28,739	$ 9,604	$ 9,484
Income taxes at Swiss tax rate of 18.5% for 2023, 18% for 2022 and 18.5% for 2021	5,317	1,729	1,755
Increase / (decrease) resulting from:
Non-Swiss tax rates differing from Swiss tax rate	(224)	284	234
Tax effects of losses not recognized	1,584	74	124
Previously unrecognized tax losses now utilized	(401)	(217)	(179)
Non-taxable and lower taxed income	(5,730)	(335)	(278)
Non-deductible expenses and additional taxable income	1,651	429	510
Adjustments related to prior years, current tax	(87)	(41)	(40)
Adjustments related to prior years, deferred tax	(1)	13	(10)
Change in deferred tax recognition	(1,288)	(217)	(342)
Adjustments to deferred tax balances arising from changes in tax rates	26	0	(5)
Other items	25	222	231
Income tax expense / (benefit)	$ 873	$ 1,942	$ 1,998
Applicable tax rate	18.50%	18%	18.50%
of which: Swiss
Major Components Of Tax Expense Income [Line Items]
Operating profit / (loss) before tax	$ 32,300	$ 4,425	$ 3,334
Increase / (decrease) resulting from:
Income tax expense / (benefit)	1,035	715	714
of which: Non-Swiss
Major Components Of Tax Expense Income [Line Items]
Operating profit / (loss) before tax	(3,561)	5,178	6,150
Increase / (decrease) resulting from:
Income tax expense / (benefit)	$ (162)	$ 1,227	$ 1,284

Income taxes - DTA (Detail 3.1)

Income taxes - DTA (Detail 3.1) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	$ 30,324	$ 18,522
Valuation allowance	(19,642)	(9,134)
Recognized	10,682	9,389
Deferred tax assets recognized by UBS entities that incurred losses in either the current or preceding year based on projections of future taxable profits	426	471
of which: USA
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Recognized	9,023	8,294
of which: related to other locations
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Recognized	1,659	1,095
Tax loss carry-forwards
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	19,070	12,708
Valuation allowance	(16,078)	(8,720)
Recognized	2,992	3,988
Unused tax credits
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	95	0
Valuation allowance	0	0
Recognized	95	0
Temporary differences
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	11,159	5,814
Valuation allowance	(3,564)	(414)
Recognized	7,595	5,400
of which: related to real estate costs capitalized for US tax purposes | Temporary differences
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	2,703	2,485
Valuation allowance	0	0
Recognized	2,703	2,485
of which: related to compensation and benefits | Temporary differences
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	1,795	1,194
Valuation allowance	(471)	(175)
Recognized	1,324	1,018
of which: related to cash flow hedges | Temporary differences
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	765	947
Valuation allowance	(139)	0
Recognized	626	947
of which: other | Temporary differences
Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items]
Gross	5,896	1,188
Valuation allowance	(2,954)	(238)
Recognized	$ 2,942	$ 950

Income taxes - DTL (Detail 3.2)

Income taxes - DTL (Detail 3.2) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Deferred Tax Liabilities [Line Items]
Total deferred tax liabilities	$ 325	$ 236

Income taxes (Detail 4)

Income taxes (Detail 4) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	$ 64,335	$ 32,091
of which: USA
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	12,354	13,350
of which: related to the UK
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	37,773	14,332
of which: related to other locations
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	14,208	4,409
Within 1 year
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	342	231
From 2 to 5 years
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	10,839	2,184
From 6 to 10 years
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	7,114	11,106
From 11 to 20 years
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	1,818	1,610
No expiry
Unused Tax Losses For Which No Deferred Tax Asset Recognised [Line Items]
Unrecognized tax losses carried forward for which no deferred tax asset recognised	$ 44,222	$ 16,960

Financial assets at amortized_3

Financial assets at amortized cost and other positions in scope of expected credit loss measurement - On-balance sheet financial assets subject to ECL (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	$ (2,261)	$ (1,091)	$ (1,165)
of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(1,018)
Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,192,006	729,807
Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	443,354
Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,189,773	727,568
Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	314,148	169,445
Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	21,161	14,792
Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	99,039	67,814
Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	50,082	35,032
Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	639,844	387,220
Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	268,616	156,930
Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	97,817	46,470
Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	30,084	12,226
Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,957	13,903
Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	156,353	132,287
Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,041	1,834
Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,727	3,272
Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,214
Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,982
Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	65,498	53,264
of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,615	2,611
Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,233	2,239
Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	1,115
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(700)	(259)	(282)
Twelve-month expected credit losses | Stage 1 and 2 positions | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(392)
Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,161,816	712,078
Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	433,789
Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,159,583	709,839
Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	314,025	169,402
Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	21,107	14,792
Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	99,039	67,814
Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	50,082	35,032
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	611,019	370,095
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	256,614	147,651
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	92,084	43,112
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,671	10,733
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	22,155	12,211
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	156,299	132,196
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,564	1,420
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,662	3,261
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	8,920
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,795
Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	64,311	52,704
Twelve-month expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,422	2,357
Twelve-month expected credit losses | Stage 1 and 2 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,233	2,239
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(416)	(267)	(220)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(143)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(97)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(35)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(133)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(60)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(11)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(13)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(1)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(19)
Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	6,935
Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18	44
Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17	1
Lifetime expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	24,408	15,587
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	10,695	8,579
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,367	3,349
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,182	1,189
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,919	1,342
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	438	382
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	273
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	92
Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	968	413
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	79	128
Lifetime expected credit losses | Stage 1 and 2 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(993)	(564)	$ (662)
Lifetime expected credit losses | Stage 3 positions | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(330)
Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	878
Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,869	1,538
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	929	699
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	270	9
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	700	303
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	754	351
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	50	91
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	39	31
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	22	11
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	38
Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	158	147
Lifetime expected credit losses | Stage 3 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	114	126
Lifetime expected credit losses | Stage 3 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(153)	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Total allowance and provisions	(153)
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	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	106
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	38
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions measured at amortized cost
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	1,548
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	378
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	97
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	532
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	129
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: 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 | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	57
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	61
Lifetime expected credit losses | Purchased credit-impaired (PCI) | of which: 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
Gross carrying amount | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,193,916	730,696
Gross carrying amount | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,191,683	728,457
Gross carrying amount | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	314,197	169,457
Gross carrying amount | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	21,174	14,798
Gross carrying amount | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	99,041	67,816
Gross carrying amount | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	50,082	35,033
Gross carrying amount | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	641,542	388,003
Gross carrying amount | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	268,825	157,091
Gross carrying amount | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	97,920	46,511
Gross carrying amount | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	30,660	12,356
Gross carrying amount | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	26,359	14,154
Gross carrying amount | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	156,394	132,313
Gross carrying amount | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,083	1,869
Gross carrying amount | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,858	3,367
Gross carrying amount | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	9,265
Gross carrying amount | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,041
Gross carrying amount | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	65,648	53,350
Gross carrying amount | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,665	2,670
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	314,025	169,402
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	21,113	14,797
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	99,041	67,816
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	50,082	35,033
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	611,443	370,224
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	256,675	147,678
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	92,124	43,129
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	25,775	10,757
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	22,226	12,237
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	156,312	132,205
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,571	1,427
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,681	3,266
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	8,968
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,817
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	64,352	52,721
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,426	2,364
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	43	56
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18	1
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	24,697	15,767
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	10,792	8,686
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	5,398	3,372
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,252	1,204
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	2,961	1,364
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	15	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	449	393
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	26	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	276
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	110
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	978	419
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	80	130
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	3,731	2,012
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	968	727
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	290	9
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,012	395
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,031	553
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	67	108
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	63	50
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	133	101
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	4
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	58
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	253	210
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	159	176
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	128
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	43
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	1,671
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	389
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	108
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	620
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	142
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	18
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	17
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	57
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	66
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | of which: Loans to financial advisors
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	(1,911)	(889)
Allowance for expected credit loss | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(855)
Allowance for expected credit loss | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,911)	(889)
Allowance for expected credit loss | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(48)	(12)
Allowance for expected credit loss | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(12)	(6)
Allowance for expected credit loss | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2)	(2)
Allowance for expected credit loss | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1,698)	(783)
Allowance for expected credit loss | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(209)	(161)
Allowance for expected credit loss | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(103)	(41)
Allowance for expected credit loss | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(575)	(130)
Allowance for expected credit loss | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(402)	(251)
Allowance for expected credit loss | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(41)	(26)
Allowance for expected credit loss | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(42)	(36)
Allowance for expected credit loss | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(130)	(96)
Allowance for expected credit loss | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(51)
Allowance for expected credit loss | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(59)
Allowance for expected credit loss | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(151)	(86)
Allowance for expected credit loss | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(49)	(59)
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
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(473)	(154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(277)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(473)	(154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(6)	(5)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(2)	(2)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(423)	(129)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(62)	(27)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(41)	(17)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(105)	(24)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(71)	(26)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(13)	(9)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(6)	(7)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(18)	(6)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(48)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(22)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(41)	(17)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(4)	(7)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(326)	(199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(109)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(326)	(199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(26)	(12)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1)	(1)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(289)	(180)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(97)	(107)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(31)	(23)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(70)	(14)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(42)	(22)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11)	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11)	(10)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1)	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(3)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(17)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(10)	(6)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1)	(2)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(956)	(537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(314)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(956)	(537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Cash and balances at central banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Cash collateral receivables on derivative instruments
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(862)	(474)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(39)	(28)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(21)	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(312)	(92)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(277)	(203)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(17)	(17)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(24)	(19)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(111)	(90)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | of which: Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(20)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(94)	(63)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | of which: Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(44)	(51)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Financial assets measured at fair value through other comprehensive income
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	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	(156)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on-balance sheet financial assets in scope of ECL requirements | of which: Credit Suisse
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(156)
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	(156)
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	(22)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(5)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions measured at amortized cost
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	(123)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(11)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(89)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(13)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: 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 | of which: 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 | of which: 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 | of which: Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(1)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | of which: 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) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Financial assets	(5)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | of which: 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

Financial assets at amortized_4

Financial assets at amortized cost and other positions in scope of expected credit loss measurement - Off-balance sheet financial assets subject to ECL (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	$ 324,141	$ 112,050
Total ECL provisions	(350)	(201)
Total allowance and provisions	(2,261)	(1,091)	$ (1,165)
of which: Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	187,519
Total allowance and provisions	(1,018)
Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	46,191	22,167
Total ECL provisions	(73)	(48)
Guarantees | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	9,267	3,663
Total ECL provisions	(31)	(26)
Guarantees | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,839	1,337
Total ECL provisions	(14)	(5)
Guarantees | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	22,922	11,833
Total ECL provisions	(12)	(12)
Guarantees | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	5,045	2,376
Total ECL provisions	(1)	(1)
Guarantees | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,037	2,121
Total ECL provisions	(1)	(1)
Irrevocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	91,643	39,996
Total ECL provisions	(178)	(111)
Irrevocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	50,696	23,611
Total ECL provisions	(149)	(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	18,444	3,801
Total ECL provisions	0	0
Unconditionally revocable loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	163,256	41,390
Total ECL provisions	(95)	(40)
Unconditionally revocable loan commitments | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	15,846	8,711
Total ECL provisions	(14)	(6)
Unconditionally revocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	17,139	4,578
Total ECL provisions	(23)	(4)
Unconditionally revocable loan commitments | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	11,658	4,723
Total ECL provisions	(38)	(19)
Unconditionally revocable loan commitments | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	77,618	7,855
Total ECL provisions	0	0
Unconditionally revocable loan commitments | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	10,458	9,390
Total ECL provisions	(10)	(7)
Unconditionally revocable loan commitments | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		327
Total ECL provisions		0
Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4,608	4,696
Total ECL provisions	(4)	(2)
Stages 1 and 2
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	1,115
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	315,060	105,258
Total ECL provisions	(226)	(106)
Total allowance and provisions	(700)	(259)	(282)
Twelve-month expected credit losses | Stages 1 and 2 | of which: Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	183,235
Total allowance and provisions	(392)
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	44,487	19,805
Total ECL provisions	(28)	(13)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	8,138	2,883
Total ECL provisions	(11)	(2)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,469	1,124
Total ECL provisions	(4)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	22,876	10,513
Total ECL provisions	(8)	(8)
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	5,045	2,376
Total ECL provisions	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Guarantees | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2,027	2,121
Total ECL provisions	(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	87,080	37,531
Total ECL provisions	(117)	(59)
Twelve-month expected credit losses | Stages 1 and 2 | Irrevocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	46,708	21,488
Total ECL provisions	(94)	(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	18,444	3,801
Total ECL provisions	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	160,456	39,521
Total ECL provisions	(78)	(32)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	15,033	8,528
Total ECL provisions	(11)	(6)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	16,678	4,304
Total ECL provisions	(17)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	11,253	4,442
Total ECL provisions	(33)	(16)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	77,618	7,854
Total ECL provisions	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	9,932	8,900
Total ECL provisions	(8)	(5)
Twelve-month expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines		327
Total ECL provisions		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	4,593	4,600
Total ECL provisions	(4)	(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	8,456	6,522
Total ECL provisions	(90)	(69)
Total allowance and provisions	(416)	(267)	(220)
Lifetime expected credit losses | Stages 1 and 2 | of which: Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	3,894
Total allowance and provisions	(143)
Lifetime expected credit losses | Stages 1 and 2 | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(35)
Lifetime expected credit losses | Stages 1 and 2 | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(133)
Lifetime expected credit losses | Stages 1 and 2 | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(60)
Lifetime expected credit losses | Stages 1 and 2 | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(5)
Lifetime expected credit losses | Stages 1 and 2 | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(11)
Lifetime expected credit losses | Stages 1 and 2 | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(13)
Lifetime expected credit losses | Stages 1 and 2 | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total allowance and provisions	(1)
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	1,495	2,254
Total ECL provisions	(22)	(9)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1,023	721
Total ECL provisions	(13)	(3)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	337	164
Total ECL provisions	(5)	(1)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	46	1,320
Total ECL provisions	(3)	(4)
Lifetime expected credit losses | Stages 1 and 2 | Guarantees | of which: Lombard
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 | Guarantees | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	9	0
Total ECL provisions	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	4,297	2,341
Total ECL provisions	(51)	(52)
Lifetime expected credit losses | Stages 1 and 2 | Irrevocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	3,881	2,024
Total ECL provisions	(41)	(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
Total ECL provisions	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	2,654	1,833
Total ECL provisions	(17)	(8)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	813	183
Total ECL provisions	(3)	0
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	454	268
Total ECL provisions	(6)	(2)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	375	256
Total ECL provisions	(5)	(3)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: Lombard
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 | Unconditionally revocable loan commitments | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	522	487
Total ECL provisions	(2)	(2)
Lifetime expected credit losses | Stages 1 and 2 | Unconditionally revocable loan commitments | of which: 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 | 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	11	94
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	519	270
Total ECL provisions	(37)	(26)
Total allowance and provisions	(993)	(564)	$ (662)
Lifetime expected credit losses | Stage 3 | of which: Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	285
Total allowance and provisions	(330)
Lifetime expected credit losses | Stage 3 | Guarantees
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	151	108
Total ECL provisions	(23)	(26)
Lifetime expected credit losses | Stage 3 | Guarantees | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	89	58
Total ECL provisions	(7)	(21)
Lifetime expected credit losses | Stage 3 | Guarantees | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	31	49
Total ECL provisions	(5)	(3)
Lifetime expected credit losses | Stage 3 | Guarantees | of which: Financial intermediaries and hedge funds
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 | Guarantees | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	0	1
Total ECL provisions	(1)	(1)
Lifetime expected credit losses | Stage 3 | Guarantees | of which: 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 loan commitments
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	218	124
Total ECL provisions	(14)	0
Lifetime expected credit losses | Stage 3 | Irrevocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	59	99
Total ECL provisions	(12)	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
Total ECL provisions	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	146	36
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | of which: Real estate financing
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 | Unconditionally revocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	8	5
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	29	26
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	1	1
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4	3
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 | Unconditionally revocable loan commitments | of which: 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 | Stage 3 | Irrevocable committed prolongation of existing loans
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	4	2
Total ECL provisions	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	106
Total ECL provisions	3
Total allowance and provisions	(153)	$ 0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | of which: Credit Suisse
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	106
Total allowance and provisions	(153)
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	58
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	17
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	2
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees | of which: 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 | of which: 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 | of which: 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	48
Total ECL provisions	4
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable loan commitments | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total off-balance sheet financial instruments and other credit lines	48
Total ECL provisions	(2)
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 | of which: 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 | of which: 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 | of which: 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 | of which: 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 | of which: 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

Financial assets at amortized_5

Financial assets at amortized cost and other positions in scope of expected credit loss measurement - Coverage ratios (Narrative) (Detail)	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Provision Matrix [Line Items]
Total combined on- and off-balance sheet coverage ratio	0.22%	0.21%
Increase decrease in ECL coverage	0.01%
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total combined on- and off-balance sheet coverage ratio	0.11%	0.10%
Increase decrease in ECL coverage	0.01%
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Total combined on- and off-balance sheet coverage ratio	21%
Increase decrease in ECL coverage	(1.00%)
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Total combined on- and off-balance sheet coverage ratio	7%

Financial assets at amortized_6

Financial assets at amortized cost and other positions in scope of expected credit loss measurement - Coverage ratios (Detail 1) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.22%	0.21%
Total on- and off-balance sheet	$ 949,904	$ 498,921
Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,192,006	729,807
Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,189,773	727,568
Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	639,844	387,220
Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	268,616	156,930
Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	97,817	46,470
Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	30,084	12,226
Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25,957	13,903
Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	156,353	132,287
Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,041	1,834
Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,727	3,272
Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	9,214
Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,982
Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	65,498	53,264
Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 2,615	$ 2,611
Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.11%	0.10%
Stage 3 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	21%
Purchased credit-impaired (PCI)
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	7%
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.05%
Total on- and off-balance sheet	$ 910,485	$ 474,045
Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,161,816	712,078
Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,159,583	709,839
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	611,019	370,095
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	256,614	147,651
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	92,084	43,112
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25,671	10,733
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	22,155	12,211
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	156,299	132,196
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,564	1,420
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,662	3,261
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	8,920
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,795
Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	64,311	52,704
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 2,422	$ 2,357
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.14%	1.12%
Total on- and off-balance sheet	$ 33,233	$ 22,418
Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	24,408	15,587
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	10,695	8,579
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,367	3,349
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,182	1,189
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,919	1,342
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	438	382
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	273
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	92
Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	968	413
Lifetime expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 79	$ 128
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	21.40%	22.42%
Total on- and off-balance sheet	$ 4,408	$ 2,458
Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,869	1,538
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	929	699
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	270	9
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	700	303
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	754	351
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	50	91
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	39	31
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	22	11
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	4
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	38
Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	158	147
Lifetime expected credit losses | Stage 3 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 114	126
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	6.75%
Total on- and off-balance sheet	$ 1,777
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]
Gross carrying amount	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,548
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	378
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	97
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	532
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	129
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	18
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	17
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	57
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	61
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Gross carrying amount | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,193,916	730,696
Gross carrying amount | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,191,683	728,457
Gross carrying amount | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	641,542	388,003
Gross carrying amount | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	268,825	157,091
Gross carrying amount | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	97,920	46,511
Gross carrying amount | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	30,660	12,356
Gross carrying amount | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	26,359	14,154
Gross carrying amount | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	156,394	132,313
Gross carrying amount | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,083	1,869
Gross carrying amount | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,858	3,367
Gross carrying amount | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	9,265
Gross carrying amount | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,041
Gross carrying amount | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	41,136	20,342
Gross carrying amount | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	65,648	53,350
Gross carrying amount | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,665	2,670
Gross carrying amount | Total
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	644,206	390,672
Gross carrying amount | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	366,745	203,602
Gross carrying amount | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	57,019	26,510
Gross carrying amount | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	220,442	160,561
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	611,443	370,224
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	256,675	147,678
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	92,124	43,129
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	25,775	10,757
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	22,226	12,237
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	156,312	132,205
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,571	1,427
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,681	3,266
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	8,968
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,817
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	39,293	19,525
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	64,352	52,721
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,426	2,364
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	613,869	372,588
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]
Gross carrying amount	348,800	190,807
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	48,001	22,994
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	217,068	158,787
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	24,697	15,767
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	10,792	8,686
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	5,398	3,372
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,252	1,204
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,961	1,364
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	15	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	449	393
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	26	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	276
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	110
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,419	748
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	978	419
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	80	130
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	24,777	15,896
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	16,190	12,059
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	6,213	2,567
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,373	1,270
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,731	2,012
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	968	727
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	290	9
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,012	395
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,031	553
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	67	108
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	63	50
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	133	101
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	4
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	58
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	105	68
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	253	210
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	159	176
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	3,889	2,188
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,258	736
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	2,042	949
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	589	503
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,671
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	389
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	108
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	620
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	142
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	18
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	17
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	57
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	320
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	66
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	1,671
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	497
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	762
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	412
Allowance for expected credit loss | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(1,911)	(889)
Allowance for expected credit loss | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(1,911)	(889)
Allowance for expected credit loss | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(1,698)	(783)
Allowance for expected credit loss | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (209)	$ (161)
ECL coverage	0.08%	0.10%
Allowance for expected credit loss | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (103)	$ (41)
ECL coverage	0.11%	0.09%
Allowance for expected credit loss | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (575)	$ (130)
ECL coverage	1.88%	1.05%
Allowance for expected credit loss | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (402)	$ (251)
ECL coverage	1.53%	1.77%
Allowance for expected credit loss | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (41)	$ (26)
ECL coverage	0.03%	0.02%
Allowance for expected credit loss | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (42)	$ (36)
ECL coverage	2%	1.90%
Allowance for expected credit loss | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (130)	$ (96)
ECL coverage	2.23%	2.85%
Allowance for expected credit loss | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (51)
ECL coverage	0.56%
Allowance for expected credit loss | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (59)
ECL coverage	1.95%
Allowance for expected credit loss | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.21%	0.21%
Allowance for expected credit loss | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (151)	$ (86)
Allowance for expected credit loss | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (49)	$ (59)
ECL coverage	1.85%	2.21%
Allowance for expected credit loss | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.27%	0.22%
Allowance for expected credit loss | Total | Total real estate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.09%	0.10%
Allowance for expected credit loss | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.72%	1.44%
Allowance for expected credit loss | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.21%	0.16%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.06%	0.09%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.07%	0.09%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.60%	0.32%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.45%	0.36%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.02%	0.01%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.87%	0.91%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.34%	0.18%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.55%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.35%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.11%	0.08%
Allowance for expected credit loss | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.20%	0.33%
Allowance for expected credit loss | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.11%	0.08%
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%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.53%	0.34%
Allowance for expected credit loss | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.09%	0.04%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (473)	$ (154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(473)	(154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(423)	(129)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (62)	$ (27)
ECL coverage	0.02%	0.02%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (41)	$ (17)
ECL coverage	0.04%	0.04%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (105)	$ (24)
ECL coverage	0.41%	0.22%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (71)	$ (26)
ECL coverage	0.32%	0.22%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (13)	$ (9)
ECL coverage	0.01%	0.01%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (6)	$ (7)
ECL coverage	0.40%	0.46%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (18)	$ (6)
ECL coverage	0.32%	0.18%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (48)
ECL coverage	0.54%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (22)
ECL coverage	0.79%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.10%	0.07%
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (41)	$ (17)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (4)	$ (7)
ECL coverage	0.17%	0.28%
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	0.07%	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%	0.02%
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	0.37%	0.22%
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	0.07%	0.03%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (326)	$ (199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(326)	(199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(289)	(180)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (97)	$ (107)
ECL coverage	0.90%	1.23%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (31)	$ (23)
ECL coverage	0.57%	0.70%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (70)	$ (14)
ECL coverage	2.15%	1.20%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (42)	$ (22)
ECL coverage	1.41%	1.61%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (11)	$ 0
ECL coverage	76.16%	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (11)	$ (10)
ECL coverage	2.53%	2.56%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (1)	$ 0
ECL coverage	3.65%	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (3)
ECL coverage	0.99%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (17)
ECL coverage	15.59%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	0.39%	0.38%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (10)	$ (6)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (1)	$ (2)
ECL coverage	1.22%	1.24%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	1.17%	1.14%
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	0.79%	1.08%
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	1.80%	1.42%
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	2.10%	1.14%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total on-balance sheet financial assets in scope of ECL requirements
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (956)	$ (537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(956)	(537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	(862)	(474)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Private clients with mortgages
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (39)	$ (28)
ECL coverage	3.99%	3.81%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Real estate financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (21)	$ 0
ECL coverage	7.13%	2.32%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Large corporate clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (312)	$ (92)
ECL coverage	30.83%	23.25%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | SME clients
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (277)	$ (203)
ECL coverage	26.89%	36.64%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Lombard
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (17)	$ (17)
ECL coverage	24.87%	15.80%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Credit cards
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (24)	$ (19)
ECL coverage	38.01%	37.79%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Commodity trade finance
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (111)	$ (90)
ECL coverage	83.33%	89.01%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Ship / aircraft financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 0
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Consumer financing
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (20)
ECL coverage	34.22%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	39.81%	37.69%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (94)	$ (63)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ (44)	$ (51)
ECL coverage	27.93%	28.70%
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	23.29%	23.98%
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	4.72%	3.79%
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	28.84%	31.06%
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	43.76%	40.16%
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]
Gross carrying amount	$ (156)
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]
Gross carrying amount	(156)
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]
Gross carrying amount	(123)
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]
Gross carrying amount	$ (11)
ECL coverage	2.83%
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]
Gross carrying amount	$ (11)
ECL coverage	9.80%
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]
Gross carrying amount	$ (89)
ECL coverage	14.29%
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]
Gross carrying amount	$ (13)
ECL coverage	8.93%
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]
Gross carrying amount	$ 0
ECL coverage	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]
Gross carrying amount	$ 0
ECL coverage	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]
Gross carrying amount	$ 0
ECL coverage	0.06%
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]
Gross carrying amount	$ (1)
ECL coverage	3.15%
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]
Gross carrying amount	$ 0
ECL coverage	0.07%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers | Other loans and advances to customers
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	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]
Gross carrying amount	$ (5)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans to financial advisors
Disclosure Of Credit Risk Exposure [Line Items]
Gross carrying amount	$ 0
ECL coverage	0%
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Credit Risk Exposure [Line Items]
ECL coverage	7.37%
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	4.34%
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	13.29%
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	0.08%

Financial assets at amortized_7

Financial assets at amortized cost and other positions in scope of expected credit loss measurement - Coverage ratios (Detail 2) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 324,141	$ 112,050
ECL coverage	0.22%	0.21%
Total on- and off-balance sheet	$ 949,904	$ 498,921
Total
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 305,697	$ 108,249
ECL coverage	0.11%	0.19%
Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 9,782	$ 6,535
ECL coverage	0.06%	0.05%
Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 17,107	$ 10,054
ECL coverage	0.09%	0.06%
Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 26,889	$ 16,589
ECL coverage	0.08%	0.06%
Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 77,103	$ 32,126
ECL coverage	0.26%	0.38%
Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 16,762	$ 7,122
ECL coverage	0.40%	0.47%
Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 93,865	$ 39,247
ECL coverage	0.29%	0.40%
Total | Lombard
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 86,173	$ 12,919
ECL coverage	0%	0.02%
Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 10,458	$ 9,390
ECL coverage	0.10%	0.07%
Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 4,640	$ 2,459
ECL coverage	0.06%	0.03%
Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 1,053
ECL coverage	0.26%
Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 153
ECL coverage	0%
Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 42,578	$ 15,841
ECL coverage	0.03%	0.09%
Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 39,887	$ 11,803
ECL coverage	0.07%	0.11%
Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 184,944	$ 52,412
ECL coverage	0.03%	0.07%
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.11%	0.10%
Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.10%	0.16%
Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.06%	0.04%
Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.09%	0.06%
Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.08%	0.06%
Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.24%	0.32%
Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.37%	0.43%
Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.26%	0.34%
Stage 1 and 2 positions | Total | Lombard
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0%	0.01%
Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.10%	0.07%
Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.06%	0.03%
Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.26%
Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0%
Stage 1 and 2 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.03%	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%
Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
ECL coverage	0.03%	0.06%
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
ECL coverage	21%
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
ECL coverage	7%
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 315,060	$ 105,258
ECL coverage	0.07%	0.05%
Total on- and off-balance sheet	$ 910,485	$ 474,045
Twelve-month expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 296,616	$ 101,457
ECL coverage	0.08%	0.10%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 9,505	$ 6,296
ECL coverage	0.05%	0.04%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 16,281	$ 9,779
ECL coverage	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]
Gross exposure	$ 25,786	$ 16,075
ECL coverage	0.07%	0.06%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 71,524	$ 28,950
ECL coverage	0.17%	0.18%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 15,868	$ 6,525
ECL coverage	0.29%	0.30%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 87,392	$ 35,475
ECL coverage	0.19%	0.20%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 86,173	$ 12,918
ECL coverage	0%	0.01%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 9,932	$ 8,900
ECL coverage	0.08%	0.05%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 4,628	$ 2,459
ECL coverage	0.05%	0.03%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 1,053
ECL coverage	0.26%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 153
ECL coverage	0%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 42,325	$ 14,177
ECL coverage	0.03%	0.07%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 39,174	$ 11,454
ECL coverage	0.04%	0.08%
Twelve-month expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 183,438	$ 49,907
ECL coverage	0.02%	0.05%
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 8,456	$ 6,522
ECL coverage	1.14%	1.12%
Total on- and off-balance sheet	$ 33,233	$ 22,418
Lifetime expected credit losses | Stage 1 and 2 positions | Total
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 8,456	$ 6,522
ECL coverage	1.07%	1.06%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 261	$ 236
ECL coverage	0.27%	0.18%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 826	$ 275
ECL coverage	0.44%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 1,088	$ 511
ECL coverage	0.40%	0.02%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 5,357	$ 3,013
ECL coverage	1.11%	1.65%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 812	$ 499
ECL coverage	1.96%	2.14%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 6,170	$ 3,513
ECL coverage	1.22%	1.72%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Lombard
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0	$ 0
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 522	$ 487
ECL coverage	0.35%	0.36%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 13	$ 0
ECL coverage	1.51%	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Gross 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]
Gross exposure	$ 253	$ 1,664
ECL coverage	1.42%	0.25%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 411	$ 346
ECL coverage	1.11%	0.68%
Lifetime expected credit losses | Stage 1 and 2 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 1,199	$ 2,498
ECL coverage	0.85%	0.33%
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 519	$ 270
ECL coverage	21.40%	22.42%
Total on- and off-balance sheet	$ 4,408	$ 2,458
Lifetime expected credit losses | Stage 3 positions | Total
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 519	$ 270
ECL coverage	7.17%	9.80%
Lifetime expected credit losses | Stage 3 positions | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 15	$ 3
ECL coverage	0.40%	11.83%
Lifetime expected credit losses | Stage 3 positions | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0	$ 0
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 15	$ 3
ECL coverage	0.40%	12.88%
Lifetime expected credit losses | Stage 3 positions | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 157	$ 163
ECL coverage	12.17%	12.63%
Lifetime expected credit losses | Stage 3 positions | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 80	$ 98
ECL coverage	6.40%	3.04%
Lifetime expected credit losses | Stage 3 positions | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 236	$ 260
ECL coverage	10.22%	9.03%
Lifetime expected credit losses | Stage 3 positions | Total | Lombard
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 1	$ 1
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 4	$ 3
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0	$ 0
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 3 positions | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Stage 3 positions | Total | Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0	$ 0
ECL coverage	0%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Other off-balance sheet commitments
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 263	$ 3
ECL coverage	4.53%	0%
Lifetime expected credit losses | Stage 3 positions | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 268	$ 7
ECL coverage	4.86%	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 106
ECL coverage	6.75%
Total on- and off-balance sheet	$ 1,777
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 106
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Real estate financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total real estate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 65
ECL coverage	2.42%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | SME clients
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 2
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total corporate lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 67
ECL coverage	2.21%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Lombard
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Credit cards
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Ship / aircraft financing
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 0
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Consumer financing
Disclosure Of Provision Matrix [Line Items]
Gross 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]
Gross 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]
Gross exposure	$ 39
ECL coverage	0%
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total | Total other lending
Disclosure Of Provision Matrix [Line Items]
Gross exposure	$ 39
ECL coverage	0%

Derivative instruments (Narrati

Derivative instruments (Narrative) (Detail) - USD ($) $ in Trillions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Maturity Profile Of Derivatives Notionals [Line Items]
Increase / (decrease) in other notional amounts	$ 8.8
Interest rate swap contract | Over-the-counter | Within 1 year
Maturity Profile Of Derivatives Notionals [Line Items]
Maturity profile of derivatives based on notional amount	50%	46%
Interest rate swap contract | Over-the-counter | Due between 1 and 5 years
Maturity Profile Of Derivatives Notionals [Line Items]
Maturity profile of derivatives based on notional amount	30%	32%
Interest rate swap contract | Over-the-counter | Due after 5 years
Maturity Profile Of Derivatives Notionals [Line Items]
Maturity profile of derivatives based on notional amount	20%	22%

Derivative instruments (Detail)

Derivative instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative financial assets	$ 176,084	$ 150,108
Derivative financial liabilities	192,181	154,906
Notional amounts related to derivative financial assets and liabilities	12,368,500	9,301,800
Other notional amounts	20,365,800	11,376,500
of which: Credit Suisse
Derivative [Line Items]
Derivative financial assets	47,400
Derivative financial liabilities	53,500
Notional amounts related to derivative financial assets and liabilities	2,194,100
Other notional amounts	6,337,400
Interest rate risk
Derivative [Line Items]
Derivative financial assets	55,600	39,800
Derivative financial liabilities	52,900	37,500
Notional amounts related to derivative financial assets and liabilities	3,524,100	2,080,300
Other notional amounts	20,073,900	11,255,400
Credit derivatives
Derivative [Line Items]
Derivative financial assets	4,000	1,000
Derivative financial liabilities	4,700	1,200
Notional amounts related to derivative financial assets and liabilities	274,900	73,900
Foreign exchange
Derivative [Line Items]
Derivative financial assets	78,700	85,500
Derivative financial liabilities	89,900	88,500
Notional amounts related to derivative financial assets and liabilities	6,913,300	6,079,800
Other notional amounts	180,400	40,100
Equity / index
Derivative [Line Items]
Derivative financial assets	35,500	22,200
Derivative financial liabilities	41,400	26,100
Notional amounts related to derivative financial assets and liabilities	1,396,800	885,800
Other notional amounts	95,000	63,400
Commodities
Derivative [Line Items]
Derivative financial assets	2,000	1,400
Derivative financial liabilities	1,600	1,400
Notional amounts related to derivative financial assets and liabilities	142,900	132,300
Other notional amounts	16,400	17,600
Other
Derivative [Line Items]
Derivative financial assets	400	200
Derivative financial liabilities	1,600	100
Notional amounts related to derivative financial assets and liabilities	116,500	49,800
of which: forwards | Over-the-counter (OTC) contracts | Interest rate risk
Derivative [Line Items]
Derivative financial assets	100	200
Derivative financial liabilities	100	0
Notional amounts related to derivative financial assets and liabilities	122,400	72.3
Other notional amounts	2,532,200	792,700
of which: forwards | Over-the-counter (OTC) contracts | Foreign exchange
Derivative [Line Items]
Derivative financial assets	18,700	26,500
Derivative financial liabilities	24,100	28,600
Notional amounts related to derivative financial assets and liabilities	2,152,000	1,763,600
of which: forwards | Exchange-traded derivatives (ETD) | Commodities
Derivative [Line Items]
Derivative financial assets	0	0
Derivative financial liabilities	0	0
Notional amounts related to derivative financial assets and liabilities	31,500	47,700
of which: swaps | Over-the-counter (OTC) contracts | Interest rate risk
Derivative [Line Items]
Derivative financial assets	37,700	25,200
Derivative financial liabilities	32,600	19.8
Notional amounts related to derivative financial assets and liabilities	1,331,600	607.1
Other notional amounts	16,601,300	9,728,600
of which: swaps | Over-the-counter (OTC) contracts | Foreign exchange
Derivative [Line Items]
Derivative financial assets	52,200	49,600
Derivative financial liabilities	58,100	50,400
Notional amounts related to derivative financial assets and liabilities	3,809,700	3,233,000
Other notional amounts	178,700	38,400
of which: swaps | Over-the-counter (OTC) contracts | Equity / index
Derivative [Line Items]
Derivative financial assets	6,600	5,300
Derivative financial liabilities	9,200	6,600
Notional amounts related to derivative financial assets and liabilities	273,300	217,500
of which: swaps | Over-the-counter (OTC) contracts | Commodities
Derivative [Line Items]
Derivative financial assets	900	500
Derivative financial liabilities	700	700
Notional amounts related to derivative financial assets and liabilities	50,000	38,600
of which: options | Over-the-counter (OTC) contracts | Interest rate risk
Derivative [Line Items]
Derivative financial assets	17,700	14,200
Derivative financial liabilities	20,000	17.5
Notional amounts related to derivative financial assets and liabilities	2,066,700	1,392.5
of which: options | Over-the-counter (OTC) contracts | Foreign exchange
Derivative [Line Items]
Derivative financial assets	7,700	9,300
Derivative financial liabilities	7,600	9,200
Notional amounts related to derivative financial assets and liabilities	944,400	1,073,200
of which: options | Over-the-counter (OTC) contracts | Equity / index
Derivative [Line Items]
Derivative financial assets	4,900	2,800
Derivative financial liabilities	9,000	4,400
Notional amounts related to derivative financial assets and liabilities	245,200	140,600
of which: options | Over-the-counter (OTC) contracts | Commodities
Derivative [Line Items]
Derivative financial assets	600	400
Derivative financial liabilities	300	300
Notional amounts related to derivative financial assets and liabilities	42,300	29,100
of which: options | Exchange-traded derivatives (ETD) | Interest rate risk
Derivative [Line Items]
Derivative financial assets	0	0
Derivative financial liabilities	0	0
Notional amounts related to derivative financial assets and liabilities	3,400	8,300
Other notional amounts	96,100	127,700
of which: options | Exchange-traded derivatives (ETD) | Equity / index
Derivative [Line Items]
Derivative financial assets	15,400	9,000
Derivative financial liabilities	14,300	8,100
Notional amounts related to derivative financial assets and liabilities	876,600	526,700
Other notional amounts	8,500	11,200
of which: futures | Exchange-traded derivatives (ETD) | Interest rate risk
Derivative [Line Items]
Other notional amounts	843,700	606,300
of which: futures | Exchange-traded derivatives (ETD) | Equity / index
Derivative [Line Items]
Other notional amounts	86,600	52,200
of which: futures | Exchange-traded derivatives (ETD) | Commodities
Derivative [Line Items]
Other notional amounts	13,700	16,400
of which: client-cleared transactions | Exchange-traded derivatives (ETD) | Equity / index
Derivative [Line Items]
Derivative financial assets	8,300	5,100
Derivative financial liabilities	8,200	7,000
of which: client-cleared transactions | Exchange-traded derivatives (ETD) | Commodities
Derivative [Line Items]
Derivative financial assets	200	200
Derivative financial liabilities	300	300
of which: credit default swaps | Over-the-counter (OTC) contracts | Credit derivatives
Derivative [Line Items]
Derivative financial assets	3,800	900
Derivative financial liabilities	4,400	1,000
Notional amounts related to derivative financial assets and liabilities	269,600	71,000
of which: total return swaps | Over-the-counter (OTC) contracts | Credit derivatives
Derivative [Line Items]
Derivative financial assets	100	100
Derivative financial liabilities	300	200
Notional amounts related to derivative financial assets and liabilities	$ 3,700	$ 1,200

Financial assets measured at fa

Financial assets measured at fair value through OCI (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt instruments
Total financial assets measured at fair value through other comprehensive income	$ 2,233	$ 2,239

Property, equipment and softw_3

Property, equipment and software (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 12, 2023
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	$ 12,288	$ 12,888
Balance at the end of the year	17,849	12,288
Cash outflows on lease	878	614
Internally generated software in progress	542
Own use properties in progress	322
of which: Credit Suisse
Disclosure Of Property Equipment Software [Line Items]
Balance at the end of the year	5,631
Historical cost
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	27,127	27,113
Balance recognized upon the acquisition of the Credit Suisse Group			$ 6,055
Additions	1,796	2,057
Disposals / write-offs	(1,791)	(501)
Reclassifications	1,203	(1,223)
Foreign currency translation	1,523	(319)
Balance at the end of the year	35,913	27,127
Accumulated depreciation
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	14,839	14,225
Depreciation	3,022	2,033
Impairment	593	3
Disposals / write-offs	(1,783)	(497)
Reclassifications	686	(761)
Foreign currency translation	708	(164)
Balance at the end of the year	18,064	14,839
Accumulated depreciation | Global Wealth Management
Disclosure Of Property Equipment Software [Line Items]
Impairment	26
Accumulated depreciation | Personal & Corporate Banking
Disclosure Of Property Equipment Software [Line Items]
Impairment	8
Accumulated depreciation | Asset Management
Disclosure Of Property Equipment Software [Line Items]
Impairment	6
Accumulated depreciation | Group Items
Disclosure Of Property Equipment Software [Line Items]
Impairment	246
Accumulated depreciation | Non-core and Legacy
Disclosure Of Property Equipment Software [Line Items]
Impairment	307
Owned properties and equipment
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	4,162
Balance at the end of the year	7,503	4,162
Owned properties and equipment | of which: Credit Suisse
Disclosure Of Property Equipment Software [Line Items]
Balance at the end of the year	3,060
Owned properties and equipment | Historical cost
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	11,587
Balance recognized upon the acquisition of the Credit Suisse Group			2,975
Additions	212
Disposals / write-offs	(428)
Reclassifications	1,392
Foreign currency translation	972
Balance at the end of the year	16,710	11,587
Owned properties and equipment | Accumulated depreciation
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	7,425
Depreciation	830
Impairment	189
Disposals / write-offs	(420)
Reclassifications	673
Foreign currency translation	510
Balance at the end of the year	9,207	7,425
Leased properties and equipment
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	2,746
Balance at the end of the year	4,068	2,746
Leased properties and equipment | of which: Credit Suisse
Disclosure Of Property Equipment Software [Line Items]
Balance at the end of the year	1,647
Leased properties and equipment | Historical cost
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	4,459
Balance recognized upon the acquisition of the Credit Suisse Group			1,941
Additions	100
Disposals / write-offs	(67)
Reclassifications	6
Foreign currency translation	174
Balance at the end of the year	6,613	4,459
Leased properties and equipment | Accumulated depreciation
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	1,714
Depreciation	722
Impairment	125
Disposals / write-offs	(66)
Reclassifications	5
Foreign currency translation	45
Balance at the end of the year	2,545	1,714
Software
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	4,245
Balance at the end of the year	5,414	4,245
Software | of which: Credit Suisse
Disclosure Of Property Equipment Software [Line Items]
Balance at the end of the year	805
Software | Historical cost
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	9,944
Balance recognized upon the acquisition of the Credit Suisse Group			949
Additions	92
Disposals / write-offs	(1,295)
Reclassifications	1,728
Foreign currency translation	309
Balance at the end of the year	11,726	9,944
Software | Accumulated depreciation
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	5,699
Depreciation	1,469
Impairment	279
Disposals / write-offs	(1,296)
Reclassifications	9
Foreign currency translation	152
Balance at the end of the year	6,312	5,699
Projects in progress
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	1,136
Balance at the end of the year	863	1,136
Projects in progress | of which: Credit Suisse
Disclosure Of Property Equipment Software [Line Items]
Balance at the end of the year	120
Projects in progress | Historical cost
Disclosure Of Property Equipment Software [Line Items]
Balance at the beginning of the year	1,136
Balance recognized upon the acquisition of the Credit Suisse Group			$ 190
Additions	1,393
Disposals / write-offs	0
Reclassifications	(1,923)
Foreign currency translation	68
Balance at the end of the year	$ 863	$ 1,136

Goodwill and intangible asset_2

Goodwill and intangible assets (Narrative) (Detail) $ in Billions	12 Months Ended
	Dec. 31, 2023 USD ($)
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Goodwill	$ 6
Change in forecast earnings available to shareholders used for goodwill impairment sensitivity analysis	20%
Change in discount rates used for goodwill impairment sensitivity analysis	1.50%
Change in long-term growth rates used for goodwill impairment sensitivity analysis	0.75%
Global Wealth Management Americas
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Goodwill	$ 3.7
Global Wealth Management - Switzerland and International
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Goodwill	1.2
Asset Management
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Goodwill	$ 1.1

Goodwill and intangible asset_3

Goodwill and intangible assets (Detail 1)	Dec. 31, 2023	Dec. 31, 2022
Global Wealth Management Americas
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Discount rates current year	9.50%
Discount rates previous year		10.50%
Growth rates	3.80%	3.80%
Global Wealth Management - Switzerland and International
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Discount rates current year	9.50%
Discount rates previous year		9.40%
Growth rates	3.40%	3.60%
Asset Management
Disclosure Of Information For IndividualAsset Or Cash-generating Unit With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives [Line Items]
Discount rates current year	9%
Discount rates previous year		9.50%
Growth rates	3.30%	3.40%

Goodwill and intangible asset_4

Goodwill and intangible assets (Detail 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 12, 2023
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	$ 6,267
Balance at the end of the year	7,515	$ 6,267
of which: Global Wealth Management Americas
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	3,740
Balance at the end of the year	3,748	3,740
of which: Global Wealth Management Switzerland and International
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	1,225
Balance at the end of the year	1,236	1,225
of which: Personal & Corporate Banking
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	0
Balance at the end of the year	908	0
of which: Asset Management
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	1,167
Balance at the end of the year	1,149	1,167
of which: Investment Bank
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	135
Balance at the end of the year	135	135
of which: Non-core and Legacy
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	0
Balance at the end of the year	339	0
Historical cost
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	7,641	7,739
Acquisition of the Credit Suisse Group		0	$ 1,287
Additions	6	0
Disposals	(40)	(22)
Foreign currency translation	112	(76)
Balance at the end of the year	9,006	7,641
Accumulated amortization and impairment
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	1,374	1,360
Amortization	134	26
Impairment / (reversal of impairment)	0	(1)
Disposals	(30)	0
Foreign currency translation	13	(11)
Balance at the end of the year	1,491	1,374
Goodwill
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	6,043
Goodwill | of which: Global Wealth Management Americas
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	3,712
Goodwill | of which: Global Wealth Management Switzerland and International
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	1,182
Goodwill | of which: Personal & Corporate Banking
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	0
Goodwill | of which: Asset Management
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	1,149
Goodwill | of which: Investment Bank
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	0
Goodwill | of which: Non-core and Legacy
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	0
Goodwill | Historical cost
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	6,043
Acquisition of the Credit Suisse Group			0
Additions	0
Disposals	(10)
Foreign currency translation	10
Balance at the end of the year	6,043	6,043
Goodwill | Accumulated amortization and impairment
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	0
Impairment / (reversal of impairment)	0
Disposals	0
Foreign currency translation	0
Balance at the end of the year	0	0
Intangible assets
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	1,473
Intangible assets | of which: Global Wealth Management Americas
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	36
Intangible assets | of which: Global Wealth Management Switzerland and International
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	55
Intangible assets | of which: Personal & Corporate Banking
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	908
Intangible assets | of which: Asset Management
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	0
Intangible assets | of which: Investment Bank
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	135
Intangible assets | of which: Non-core and Legacy
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the end of the year	339
Intangible assets | Historical cost
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	1,598
Acquisition of the Credit Suisse Group			$ 1,287
Additions	6
Disposals	(30)
Foreign currency translation	102
Balance at the end of the year	2,964	1,598
Intangible assets | Accumulated amortization and impairment
Disclosure Of Reconciliation Of Changes In Intangible Assets And Goodwill [Line Items]
Balance at the beginning of the year	1,374
Amortization	134
Impairment / (reversal of impairment)	0
Disposals	(30)
Foreign currency translation	13
Balance at the end of the year	$ 1,491	$ 1,374

Goodwill and intangible asset_5

Goodwill and intangible assets (Detail 3) $ in Millions	Dec. 31, 2023 USD ($)
Estimated Aggregated Amortization Expenses [Line Items]
2024	$ 211
2025	194
2026	181
2027	173
2028	161
Thereafter	551
Not amortized due to indefinite useful life	3
Total	$ 1,473

Other financial assets measured

Other financial assets measured at amortized cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Apr. 01, 2022
Disclosure Of Financial Assets [Line Item]
Debt securities	$ 44,594	$ 45,057
Loans to financial advisors	2,611	2,615
Fee- and commission-related receivables	1,812	2,619
Finance lease receivables	1,315	6,288
Settlement and clearing accounts	1,175	338
Accrued interest income	1,259	3,163
Other	499	5,418
Total other financial assets measured at amortized cost	53,264	65,498
Reclassification of financial assets out of measured at fair value through other comprehensive income into measured at amortised cost	6,900
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)
Carrying amount of financial assets reclassified out of fair value through other comprehensive income category into amortised cost category			$ 7,400
Credit Suisse
Disclosure Of Financial Assets [Line Item]
Total other financial assets measured at amortized cost		$ 11,378

Other non-financial assets (Det

Other non-financial assets (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Non-Financial Assets [Line Items]
Precious metals and other physical commodities	$ 5,930	$ 4,471
Deposits and collateral provided in connection with litigation, regulatory and similar matters	2,726	2,205
Prepaid expenses	2,080	1,076
Current tax assets	1,456	182
VAT, withholding tax and other tax receivables	1,327	1,286
Properties and other non-current assets held for sale	188	369
Other	2,342	578
Total other non-financial assets	16,049	$ 10,166
Credit Suisse
Other Non-Financial Assets [Line Items]
Total other non-financial assets	$ 7,099

Customer deposits (Detail)

Customer deposits (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deposits From Customers [Line Items]
Demand deposits	$ 240,942	$ 180,822
Retail savings / deposits	186,087	149,310
Sweep deposits	41,045	69,223
Time deposits	323,955	125,696
Total customer deposits	792,029	$ 525,051
of which: Credit Suisse
Deposits From Customers [Line Items]
Total customer deposits	$ 236,049

Funding from Group and other su

Funding from Group and other subsidiaries (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Funding From Group And Other Subsidiaries [Line Items]
Senior unsecured debt that contributes to total loss-absorbing capacity (TLAC)	$ 4,629	$ 1,959
High-trigger loss-absorbing additional tier 1 capital instruments	10,744	9,882
Low-trigger loss-absorbing additional tier 1 capital instruments	$ 1,214	$ 1,189

Debt issued designated at fai_3

Debt issued designated at fair value (Detail 1) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Issued debt instruments
Equity-linked	$ 60,573	$ 41,901
Rates-linked	28,883	16,276
Credit-linked	7,730	2,170
Fixed-rate	20,541	6,538
Commodity-linked	3,844	4,294
Other	6,718	2,459
of which: debt that contributes to total loss-absorbing capacity	4,629	1,959
Total debt issued designated at fair value	128,289	73,638
of which: issued by UBS AG with original maturity greater than one year	73,544	$ 57,750
of which: issued by Credit Suisse AG with original maturity greater than one year	29,948
of which: issued by Credit Suisse International with original maturity greater than one year	$ 1,471
Unsecured portion of issued debt instruments with original maturity greater than one year	100%	100%
Credit Suisse International
Issued debt instruments
Unsecured portion of issued debt instruments with original maturity greater than one year	65%
Credit Suisse
Issued debt instruments
Total debt issued designated at fair value	$ 37,200

Debt issued measured at amort_2

Debt issued measured at amortized cost (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Short-term debt	$ 38,530	$ 29,676
Senior unsecured debt	147,547	59,965
of which: contributes to total loss-absorbing capacity (TLAC)	101,939	42,073
of which: issued by UBS AG standalone with original maturity greater than one year	18,446	17,892
of which: issued by Credit Suisse AG with original maturity greater than one year	24,609
Covered bonds	5,214	0
Subordinated debt	17,644	16,017
of which: eligible as high-trigger loss-absorbing additional tier 1 capital instruments	10,744	9,882
of which: eligible as low-trigger loss-absorbing additional tier 1 capital instruments	1,214	1,189
of which: eligible as low-trigger loss-absorbing tier 2 capital instruments	0	2,422
of which: eligible as non-Basel III-compliant tier 2 capital instruments	538	536
Debt issued through the Swiss central mortgage institutions	27,377	8,962
Other long-term debt	1,506
Long-term debt	199,288	84,945
Total debt issued measured at amortized cost	$ 237,817	$ 114,621
Unsecured portion of total debt issued measured at amortized cost	100%
of which: Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Short-term debt	$ 1,245
Long-term debt	$ 45,640

Debt issued measured at amort_3

Debt issued measured at amortized cost (Narrative) (Detail) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Issued Held At Amortized Cost [Line Items]
Hedge accounting impact on carrying amount	$ (3)	$ (6.1)

Provisions (Detail)

Provisions (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Other Provisions [Line Items]
Provisions related to expected credit losses (IFRS 9, Financial Instruments)	$ 350	$ 201
Provisions related to Credit Suisse loan commitments (IFRS 3, Business Combinations)	1,924
Provisions related to litigation, regulatory and similar matters (IAS 37, Provisions, Contingent Liabilities and Contingent Assets)	6,144	3,042
Acquisition-related contingent liabilities (IFRS 3, Business Combinations)	3,832
Other provisions	2,123	456
Total provisions and contingent liabilities	12,250	3,243
Credit Suisse
Disclosure Of Other Provisions [Line Items]
Acquisition-related contingent liabilities (IFRS 3, Business Combinations)	3,800
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters (IAS 37, Provisions, Contingent Liabilities and Contingent Assets)	4,020	$ 2,586
of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters (IAS 37, Provisions, Contingent Liabilities and Contingent Assets)	3,762
Total provisions and contingent liabilities	9,681
of which: Credit Suisse | Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Provisions related to litigation, regulatory and similar matters (IAS 37, Provisions, Contingent Liabilities and Contingent Assets)	$ 2,210

Provisions - additional informa

Provisions - additional information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Jun. 12, 2023	Dec. 31, 2022
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	$ 3,042
Provisions recognized upon acquisition of Credit Suisse		$ 3,637
Increase in provisions recognized in the income statement	2,444
Release of provisions recognized in the income statement	(365)
Provisions used in conformity with designated purpose	(2,759)
Foreign currency translation and other movements	145
Balance at the end of the year	6,144
of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	3,762
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	2,586
Provisions recognized upon acquisition of Credit Suisse		2,883
Increase in provisions recognized in the income statement	909
Release of provisions recognized in the income statement	(97)
Provisions used in conformity with designated purpose	(2,344)
Foreign currency translation and other movements	85
Balance at the end of the year	4,020
Litigation, regulatory and similar matters | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	2,210
Restructuring
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	130
Provisions recognized upon acquisition of Credit Suisse		68
Increase in provisions recognized in the income statement	1,031
Release of provisions recognized in the income statement	(129)
Provisions used in conformity with designated purpose	(370)
Foreign currency translation and other movements	12
Balance at the end of the year	741
Real estate related onerous contracts restructuring provision	448		$ 28
Personnel-related restructuring provisions	294		$ 102
Restructuring | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	519
Real estate
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	129
Provisions recognized upon acquisition of Credit Suisse		108
Increase in provisions recognized in the income statement	12
Release of provisions recognized in the income statement	(1)
Provisions used in conformity with designated purpose	(15)
Foreign currency translation and other movements	27
Balance at the end of the year	259
Real estate | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	114
Other
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	197
Provisions recognized upon acquisition of Credit Suisse		$ 578
Increase in provisions recognized in the income statement	492
Release of provisions recognized in the income statement	(137)
Provisions used in conformity with designated purpose	(29)
Foreign currency translation and other movements	21
Balance at the end of the year	1,123
Other | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	$ 918

Litigation, regulatory and si_2

Litigation, regulatory and similar matters (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Jun. 12, 2023
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	$ 3,042
Provisions recognized upon acquisition of Credit Suisse		$ 3,637
Increase in provisions recognized in the income statement	2,444
Release of provisions recognized in the income statement	(365)
Provisions used in conformity with designated purpose	(2,759)
Foreign currency translation and other movements	145
Balance at the end of the year	6,144
of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	3,762
Litigation, regulatory and similar matters
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	2,586
Provisions recognized upon acquisition of Credit Suisse		2,883
Increase in provisions recognized in the income statement	909
Release of provisions recognized in the income statement	(97)
Provisions used in conformity with designated purpose	(2,344)
Foreign currency translation and other movements	85
Balance at the end of the year	4,020
Litigation, regulatory and similar matters | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	2,210
Litigation, regulatory and similar matters | Global Wealth Management
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	1,182
Provisions recognized upon acquisition of Credit Suisse		87
Increase in provisions recognized in the income statement	133
Release of provisions recognized in the income statement	(8)
Provisions used in conformity with designated purpose	(199)
Foreign currency translation and other movements	41
Balance at the end of the year	1,235
Litigation, regulatory and similar matters | Global Wealth Management | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	15
Litigation, regulatory and similar matters | Personal & Corporate Banking
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	159
Provisions recognized upon acquisition of Credit Suisse		1
Increase in provisions recognized in the income statement	1
Release of provisions recognized in the income statement	(10)
Provisions used in conformity with designated purpose	0
Foreign currency translation and other movements	6
Balance at the end of the year	157
Litigation, regulatory and similar matters | Personal & Corporate Banking | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	1
Litigation, regulatory and similar matters | Asset Management
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	8
Provisions recognized upon acquisition of Credit Suisse		0
Increase in provisions recognized in the income statement	8
Release of provisions recognized in the income statement	0
Provisions used in conformity with designated purpose	(1)
Foreign currency translation and other movements	(1)
Balance at the end of the year	15
Litigation, regulatory and similar matters | Asset Management | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	2
Litigation, regulatory and similar matters | Investment Bank
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	308
Provisions recognized upon acquisition of Credit Suisse		2
Increase in provisions recognized in the income statement	81
Release of provisions recognized in the income statement	(3)
Provisions used in conformity with designated purpose	(106)
Foreign currency translation and other movements	12
Balance at the end of the year	294
Litigation, regulatory and similar matters | Investment Bank | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	8
Litigation, regulatory and similar matters | Non-core and Legacy
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	771
Provisions recognized upon acquisition of Credit Suisse		2,789
Increase in provisions recognized in the income statement	684
Release of provisions recognized in the income statement	(48)
Provisions used in conformity with designated purpose	(2,036)
Foreign currency translation and other movements	26
Balance at the end of the year	2,186
Litigation, regulatory and similar matters | Non-core and Legacy | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	2,182
Litigation, regulatory and similar matters | Group Items
Disclosure Of Other Provisions [Line Items]
Balance at the beginning of the year	158
Provisions recognized upon acquisition of Credit Suisse		$ 4
Increase in provisions recognized in the income statement	2
Release of provisions recognized in the income statement	(29)
Provisions used in conformity with designated purpose	(1)
Foreign currency translation and other movements	0
Balance at the end of the year	134
Litigation, regulatory and similar matters | Group Items | of which: Credit Suisse
Disclosure Of Other Provisions [Line Items]
Balance at the end of the year	$ 2

Litigation, regulatory and si_3

Litigation, regulatory and similar matters (Narrative) (Detail) - 12 months ended Dec. 31, 2023 € in Thousands, $ in Thousands, £ in Millions, SFr in Millions	CHF (SFr) d	EUR (€) d	GBP (£) d	USD ($) d
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Provisions used in conformity with designated purpose				$ (2,759,000)
Litigation, regulatory and similar matters
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Provisions used in conformity with designated purpose				(2,344,000)
Non-core and Legacy | Litigation, regulatory and similar matters
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Provisions used in conformity with designated purpose				(2,036,000)
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
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
Bail ("caution") ordered to be confiscated, verdict of the French Court of Appeal | €		1,000,000
Civil damages award announcement of the French Court of Appeal | €		800,000
Fine overturned French Supreme Court | €		3,750
Confiscation overturned French Supreme Court | €		1,000,000
Civil damages award overturned French Supreme Court | €		800,000
Civil damages award reimbursed | €		800,000
Fine decision French Court of Appeal | €		3,750
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 | Non-core and Legacy | Litigation, regulatory and similar matters
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Provisions used in conformity with designated purpose				$ (1,400,000)
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
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]
Damage award Singapore International Commercial Court				$ 742,730
Time to pay awarded damages into court deposit | d	21	21	21	21
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%
Escrow account release				$ 75,000
Plaintiffs bank guarantee for the remaining judgment debt				536,640
Mozambique matter | Credit Suisse
Disclosure Of Litigation Regulatory And Similar Matters [Line Items]
Sanctions paid				275,000
Restitution paid				22,600
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]
Highest-ranking managers to have their responsibilities defined	600	600	600	600
Business relationships to be reviewed	500	500	500	500
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

Other financial liabilities mea

Other financial liabilities measured at amortized cost (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Other accrued expenses	$ 3,270	$ 1,760
Accrued interest expenses	6,692	1,949
Settlement and clearing accounts	1,519	1,075
Lease liabilities	5,502	3,334
Other	3,868	1,457
Total other financial liabilities measured at amortized cost	20,851	$ 9,575
Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Total other financial liabilities measured at amortized cost	$ 8,386

Other financial liabilities des

Other financial liabilities designated at fair value (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Liabilities [Line Items]
Financial liabilities related to unit-linked investment contracts	$ 15,992	$ 13,221
Securities financing transactions	7,416	15,333
Over-the-counter debt instruments and other	6,076	1,684
Total other financial liabilities designated at fair value	29,484	$ 30,237
Credit Suisse
Disclosure Of Financial Liabilities [Line Items]
Total other financial liabilities designated at fair value	$ 5,114

Other non-financial liabilities

Other non-financial liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other Non-Financial Liabilities [Line Items]
Compensation-related liabilities	$ 9,746	$ 6,822
of which: Deferred Contingent Capital Plan	1,709	1,614
of which: financial advisor compensation plans	1,483	1,463
of which: other compensation plans	4,723	2,680
of which: net defined benefit liability	796	469
of which: other compensation-related liabilities	1,035	596
Current tax liabilities	1,460	1,071
Deferred tax liabilities	325	236
VAT, withholding tax and other tax payables	1,120	592
Deferred income	635	235
Other	802	84
Total other non-financial liabilities	14,089	$ 9,040
Credit Suisse
Other Non-Financial Liabilities [Line Items]
Total other non-financial liabilities	$ 4,672

Expected credit loss measurem_3

Expected credit loss measurement - ECL in the period (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 1,037	$ 29	$ (148)
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	593	29	(123)
Credit-impaired (stage 3 and purchased credit-impaired) positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	445
Credit-impaired (stage 3 and purchased credit-impaired) positions | UBS portfolio
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	120
Credit-impaired (stage 3 and purchased credit-impaired) positions | Credit Suisse portfolio
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	325
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	378	$ 0	$ (25)
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 67

Expected credit loss measurem_4

Expected credit loss measurement - Credit loss expense / (release) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 1,037	$ 29	$ (148)
Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	147	0	(29)
Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	501	39	(86)
Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	0	1
Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	190	(12)	(34)
Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	193	2	0
Group Items
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	6	1	0
Stages 1 and 2
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	593	29	(123)
Stages 1 and 2 | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	108	(5)	(28)
Stages 1 and 2 | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	290	27	(62)
Stages 1 and 2 | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	1	0	0
Stages 1 and 2 | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	110	6	(34)
Stages 1 and 2 | Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	78	0	0
Stages 1 and 2 | Group Items
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	5	1	0
Stage 3
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	378	0	(25)
Stage 3 | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	27	5	(1)
Stage 3 | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	183	12	(24)
Stage 3 | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	(1)	0	1
Stage 3 | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	78	(18)	0
Stage 3 | Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	91	2	0
Stage 3 | Group Items
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0	$ 0	$ 0
Purchased
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	67
Purchased | Global Wealth Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	13
Purchased | Personal & Corporate Banking
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	27
Purchased | Asset Management
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	0
Purchased | Investment Bank
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	2
Purchased | Non-core and Legacy
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	25
Purchased | Group Items
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)	$ 0

Expected credit loss measurem_5

Expected credit loss measurement - Changes to ECL models, scenarios, scenario weights and key inputs (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (2,261)	$ (1,091)	$ (1,165)
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	1,115
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(700)	(259)	(282)
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(416)	(267)	(220)
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(993)	(564)	$ (662)
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(153)	$ 0
Large corporate clients | Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (133)
Mild debt crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	15%	0%
Total ECL allowances and provisions	$ (1,095)
Mild debt crisis | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (419)
Global crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	0%	15%
Total ECL allowances and provisions		$ (638)
Global crisis | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions		$ (174)
Stagflationary geopolitical crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	25%	25%
Total ECL allowances and provisions	$ (2,317)	$ (1,204)
Stagflationary geopolitical crisis | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (533)	$ (199)
Baseline
Disclosure Of Provision Matrix [Line Items]
Assigned weights	60%	60%
Total ECL allowances and provisions	$ (832)	$ (329)
Baseline | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (282)	$ (97)
Asset price inflation
Disclosure Of Provision Matrix [Line Items]
Assigned weights	0%	0%
Total ECL allowances and provisions		$ (295)
Asset price inflation | Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions		(84)
Model updates
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances	$ 22
Post-model adjustment | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	326	$ 131
Global Wealth Management | Model updates
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances	13
Personal & Corporate Banking | Model updates
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances	$ 14

Expected credit loss measurem_6

Expected credit loss measurement - Economic scenarios and weights applied (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
100% Asset price inflation
Disclosure Of Provision Matrix [Line Items]
Assigned weights	0%	0%
Baseline
Disclosure Of Provision Matrix [Line Items]
Assigned weights	60%	60%
Mild debt crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	15%	0%
Stagflationary geopolitical crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	25%	25%
Global crisis
Disclosure Of Provision Matrix [Line Items]
Assigned weights	0%	15%

Expected credit loss measurem_7

Expected credit loss measurement - Scenario assumptions (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
100% Asset price inflation | Within 1 year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4%	4%
100% Asset price inflation | Within 1 year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3%	3%
100% Asset price inflation | Within 1 year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3%	3%
100% Asset price inflation | Within 1 year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.50%	2.50%
100% Asset price inflation | Within 1 year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%	2.30%
100% Asset price inflation | Within 1 year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.10%	2.10%
100% Asset price inflation | Within 1 year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3%	3%
100% Asset price inflation | Within 1 year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6%	6%
100% Asset price inflation | Within 1 year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.60%	1.70%
100% Asset price inflation | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.13%	0.25%
100% Asset price inflation | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.20%	0.20%
100% Asset price inflation | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.25%	0.25%
100% Asset price inflation | Within 1 year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	20%	20%
100% Asset price inflation | Within 1 year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	20%	17%
100% Asset price inflation | Within 1 year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	15%	14%
100% Asset price inflation | Within 1 year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.60%	6.60%
100% Asset price inflation | Within 1 year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	8.10%	7.80%
100% Asset price inflation | Within 1 year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	7%	7%
100% Asset price inflation | cumulative 3-year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	9.10%	9.10%
100% Asset price inflation | cumulative 3-year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.20%	6.20%
100% Asset price inflation | cumulative 3-year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.60%	6.60%
100% Asset price inflation | cumulative 3-year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	8.10%	8.10%
100% Asset price inflation | cumulative 3-year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	7.40%	7.40%
100% Asset price inflation | cumulative 3-year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.20%	6.20%
100% Asset price inflation | cumulative 3-year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3%	3%
100% Asset price inflation | cumulative 3-year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6%	6%
100% Asset price inflation | cumulative 3-year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.50%	1.50%
100% Asset price inflation | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.37%	0.70%
100% Asset price inflation | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.58%	0.58%
100% Asset price inflation | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.63%	0.63%
100% Asset price inflation | cumulative 3-year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	51.70%	51.70%
100% Asset price inflation | cumulative 3-year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	46.60%	42.90%
100% Asset price inflation | cumulative 3-year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	39.20%	37.90%
100% Asset price inflation | cumulative 3-year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	14%	14%
100% Asset price inflation | cumulative 3-year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	19.70%	19.10%
100% Asset price inflation | cumulative 3-year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	15.40%	15.40%
Baseline | Within 1 year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.10%	(0.30%)
Baseline | Within 1 year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.50%	0.60%
Baseline | Within 1 year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.40%	0.70%
Baseline | Within 1 year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%	2.60%
Baseline | Within 1 year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2%	5%
Baseline | Within 1 year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.50%	1.60%
Baseline | Within 1 year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.40%	3.90%
Baseline | Within 1 year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.90%	7%
Baseline | Within 1 year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%	2.30%
Baseline | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.82%)	(0.06%)
Baseline | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.90%)	0.48%
Baseline | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.41%)	0.46%
Baseline | Within 1 year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	15.30%	7.40%
Baseline | Within 1 year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	12%	17.20%
Baseline | Within 1 year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.60%	5.60%
Baseline | Within 1 year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.50%)	1.10%
Baseline | Within 1 year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.60%	(4.50%)
Baseline | Within 1 year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.60%	(2.70%)
Baseline | cumulative 3-year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.40%	3.20%
Baseline | cumulative 3-year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.90%	2.50%
Baseline | cumulative 3-year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.40%	3.50%
Baseline | cumulative 3-year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	7.10%	6.50%
Baseline | cumulative 3-year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.10%	9.60%
Baseline | cumulative 3-year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.30%	3.90%
Baseline | cumulative 3-year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.40%	5.30%
Baseline | cumulative 3-year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.80%	7.10%
Baseline | cumulative 3-year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%	2.60%
Baseline | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.78%)	(0.13%)
Baseline | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.78%)	0.45%
Baseline | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.34%)	0.57%
Baseline | cumulative 3-year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	28.10%	22.80%
Baseline | cumulative 3-year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	22.90%	29.20%
Baseline | cumulative 3-year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	15.90%	19.30%
Baseline | cumulative 3-year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.80%	2.30%
Baseline | cumulative 3-year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	5.80%	(0.60%)
Baseline | cumulative 3-year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.40%	2%
Mild debt crisis | Within 1 year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.60%)
Mild debt crisis | Within 1 year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.70%)
Mild debt crisis | Within 1 year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.20%)
Mild debt crisis | Within 1 year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.10%)
Mild debt crisis | Within 1 year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.20%)
Mild debt crisis | Within 1 year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.40%)
Mild debt crisis | Within 1 year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	6.30%
Mild debt crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	8.20%
Mild debt crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.90%
Mild debt crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(2.15%)
Mild debt crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.85%)
Mild debt crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.73%)
Mild debt crisis | Within 1 year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(26.60%)
Mild debt crisis | Within 1 year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(26.40%)
Mild debt crisis | Within 1 year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(24.50%)
Mild debt crisis | Within 1 year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(4.40%)
Mild debt crisis | Within 1 year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(8.60%)
Mild debt crisis | Within 1 year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(5.90%)
Mild debt crisis | cumulative 3-year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.60%
Mild debt crisis | cumulative 3-year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.10%)
Mild debt crisis | cumulative 3-year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.30%
Mild debt crisis | cumulative 3-year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.30%
Mild debt crisis | cumulative 3-year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.80%
Mild debt crisis | cumulative 3-year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	0.80%
Mild debt crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	7.70%
Mild debt crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	9%
Mild debt crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	3.80%
Mild debt crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.55%)
Mild debt crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(1.40%)
Mild debt crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(0.28%)
Mild debt crisis | cumulative 3-year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(12.20%)
Mild debt crisis | cumulative 3-year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(16.60%)
Mild debt crisis | cumulative 3-year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(11.20%)
Mild debt crisis | cumulative 3-year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(3.00%)
Mild debt crisis | cumulative 3-year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(5.20%)
Mild debt crisis | cumulative 3-year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(5.20%)
Stagflationary geopolitical crisis | Within 1 year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(4.80%)	(4.80%)
Stagflationary geopolitical crisis | Within 1 year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(5.60%)	(5.60%)
Stagflationary geopolitical crisis | Within 1 year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(4.80%)	(4.80%)
Stagflationary geopolitical crisis | Within 1 year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	10%	10%
Stagflationary geopolitical crisis | Within 1 year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	9.60%	9.60%
Stagflationary geopolitical crisis | Within 1 year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	5.80%	5.80%
Stagflationary geopolitical crisis | Within 1 year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	9.20%	9.20%
Stagflationary geopolitical crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	10.60%	10.90%
Stagflationary geopolitical crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	4.10%	4.30%
Stagflationary geopolitical crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.70%	2.35%
Stagflationary geopolitical crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.25%	2.50%
Stagflationary geopolitical crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.95%	2.20%
Stagflationary geopolitical crisis | Within 1 year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(51.50%)	(51.50%)
Stagflationary geopolitical crisis | Within 1 year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(51.60%)	(51.60%)
Stagflationary geopolitical crisis | Within 1 year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(51.60%)	(51.60%)
Stagflationary geopolitical crisis | Within 1 year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(18.50%)	(16.70%)
Stagflationary geopolitical crisis | Within 1 year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(20.00%)	(12.80%)
Stagflationary geopolitical crisis | Within 1 year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(8.40%)	(8.40%)
Stagflationary geopolitical crisis | cumulative 3-year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(4.40%)	(4.40%)
Stagflationary geopolitical crisis | cumulative 3-year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(5.70%)	(5.70%)
Stagflationary geopolitical crisis | cumulative 3-year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(4.90%)	(4.90%)
Stagflationary geopolitical crisis | cumulative 3-year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	15.80%	15.80%
Stagflationary geopolitical crisis | cumulative 3-year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	14.80%	14.80%
Stagflationary geopolitical crisis | cumulative 3-year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	10.70%	10.70%
Stagflationary geopolitical crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	11.80%	11.80%
Stagflationary geopolitical crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	11.80%	12.20%
Stagflationary geopolitical crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	5%	5.10%
Stagflationary geopolitical crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	2.45%	2.05%
Stagflationary geopolitical crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.95%	2.20%
Stagflationary geopolitical crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	1.80%	2.05%
Stagflationary geopolitical crisis | cumulative 3-year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(45.60%)	(45.60%)
Stagflationary geopolitical crisis | cumulative 3-year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(47.20%)	(47.20%)
Stagflationary geopolitical crisis | cumulative 3-year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(47.20%)	(47.20%)
Stagflationary geopolitical crisis | cumulative 3-year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(28.60%)	(32.90%)
Stagflationary geopolitical crisis | cumulative 3-year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(30.20%)	(35.80%)
Stagflationary geopolitical crisis | cumulative 3-year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast	(12.90%)	(14.70%)
Global crisis | Within 1 year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(6.40%)
Global crisis | Within 1 year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(8.50%)
Global crisis | Within 1 year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(6.70%)
Global crisis | Within 1 year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(0.50%)
Global crisis | Within 1 year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(0.70%)
Global crisis | Within 1 year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(1.80%)
Global crisis | Within 1 year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		10%
Global crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		11.90%
Global crisis | Within 1 year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		4.40%
Global crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(3.26%)
Global crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(2.71%)
Global crisis | Within 1 year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(2.10%)
Global crisis | Within 1 year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(50.00%)
Global crisis | Within 1 year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(50.00%)
Global crisis | Within 1 year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(46.00%)
Global crisis | Within 1 year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(19.90%)
Global crisis | Within 1 year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(19.30%)
Global crisis | Within 1 year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(8.90%)
Global crisis | cumulative 3-year | Real GDP growth (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(1.80%)
Global crisis | cumulative 3-year | Real GDP growth (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(8.30%)
Global crisis | cumulative 3-year | Real GDP growth (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(3.70%)
Global crisis | cumulative 3-year | Consumer price index (% change) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		1.20%
Global crisis | cumulative 3-year | Consumer price index (% change) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(0.70%)
Global crisis | cumulative 3-year | Consumer price index (% change) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(1.60%)
Global crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | United States
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		9.40%
Global crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Eurozone
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		13%
Global crisis | cumulative 3-year | Unemployment rate (end-of-period level, %) | Switzerland
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		4.90%
Global crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | USD
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(2.91%)
Global crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | EUR
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(2.47%)
Global crisis | cumulative 3-year | Fixed income: 10-year government bonds (change in yields, basis points) | CHF
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(1.60%)
Global crisis | cumulative 3-year | Equity indices (% change) | S&P500
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(27.90%)
Global crisis | cumulative 3-year | Equity indices (% change) | EuroStoxx 50
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(39.30%)
Global crisis | cumulative 3-year | Equity indices (% change) | SPI
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(32.90%)
Global crisis | cumulative 3-year | Swiss real estate (% change) | Single Family Homes
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(23.90%)
Global crisis | cumulative 3-year | Other real estate (% change) | United States (S&P / Case Shiller)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(32.70%)
Global crisis | cumulative 3-year | Other real estate (% change) | Eurozone (House Price Index)
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast		(17.50%)

Expected credit loss measurem_8

Expected credit loss measurement - Development of ECL allowances and provisions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 12, 2023	Dec. 31, 2021
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	$ (2,261)	$ (1,091)		$ (1,165)
Credit Suisse
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Acquisition of Credit Suisse AG portfolios			$ (541)
ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1,037)	(29)
Net movement from new and derecognized transactions
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	14	(7)
Net movement from new and derecognized transactions | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(4)	(6)
Net movement from new and derecognized transactions | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	(3)
Net movement from new and derecognized transactions | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	18	8
Net movement from new and derecognized transactions | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(2)	(1)
Net movement from new and derecognized transactions | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	(6)
Net movement from new and derecognized transactions | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	0
Net movement from new and derecognized transactions | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Remeasurements with stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(507)	(65)
Remeasurements with stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(12)	(10)
Remeasurements with stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(35)	7
Remeasurements with stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(223)	(33)
Remeasurements with stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(167)	(23)
Remeasurements with stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(69)	(6)
Remeasurements with stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	0
Remeasurements with stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	1
Remeasurements without stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	17	13
Remeasurements without stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	3	(12)
Remeasurements without stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	13
Remeasurements without stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(42)	32
Remeasurements without stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	65	(6)
Remeasurements without stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(7)	(15)
Remeasurements without stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(37)	(8)
Remeasurements without stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(7)	(3)
Model changes
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(22)	30
Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(132)	104
Stages 1 and 2
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	1,115
Stages 1 and 2 | ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1,037)
Stages 1 and 2 | Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	4
Twelve-month expected credit losses | Stages 1 and 2
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(700)	(259)		(282)
Twelve-month expected credit losses | Stages 1 and 2 | Credit Suisse
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Acquisition of Credit Suisse AG portfolios			(541)
Twelve-month expected credit losses | Stages 1 and 2 | ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(457)	20
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(2)	(21)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(7)	(6)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(2)	(5)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	8	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(2)	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	(8)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	(2)
Twelve-month expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	42	20
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	2	3
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	8	(1)
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	17	16
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	6	2
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	8	1
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	2	2
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	58	(8)
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	5
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	5	3
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(18)	(11)
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	31	(10)
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	39	5
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Twelve-month expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	3
Twelve-month expected credit losses | Stages 1 and 2 | Model changes
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(14)	29
Twelve-month expected credit losses | Stages 1 and 2 | Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	17	3
Lifetime expected credit losses | Stages 1 and 2
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(416)	(267)		(220)
Lifetime expected credit losses | Stages 1 and 2 | Credit Suisse
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Acquisition of Credit Suisse AG portfolios			0
Lifetime expected credit losses | Stages 1 and 2 | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(97)
Lifetime expected credit losses | Stages 1 and 2 | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(35)
Lifetime expected credit losses | Stages 1 and 2 | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(133)
Lifetime expected credit losses | Stages 1 and 2 | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(60)
Lifetime expected credit losses | Stages 1 and 2 | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(40)
Lifetime expected credit losses | Stages 1 and 2 | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | Stages 1 and 2 | ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(136)	(49)
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	9	16
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	3	0
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	3	2
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	3	11
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	3
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	2
Lifetime expected credit losses | Stages 1 and 2 | Net movement from new and derecognized transactions | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(149)	(39)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(3)	(12)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(27)	8
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(21)	(28)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(59)	(2)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(39)	(4)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements with stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	(1)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	12	(27)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	16	(18)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	3	10
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	2
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	1	(9)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(8)	(12)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(15)	(8)
Lifetime expected credit losses | Stages 1 and 2 | Remeasurements without stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	(1)
Lifetime expected credit losses | Stages 1 and 2 | Model changes
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(8)	1
Lifetime expected credit losses | Stages 1 and 2 | Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(13)	1
Lifetime expected credit losses | Stage 3
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(993)	(564)		$ (662)
Lifetime expected credit losses | Stage 3 | Credit Suisse
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Acquisition of Credit Suisse AG portfolios			0
Lifetime expected credit losses | Stage 3 | ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(378)	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	7	(2)
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	7	(2)
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Net movement from new and derecognized transactions | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(400)	(46)
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(12)	0
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(16)	0
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(220)	(21)
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(115)	(22)
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(38)	(3)
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Remeasurements with stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	14	48
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(3)	1
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(1)	0
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(8)	41
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	44	14
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(18)	(8)
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Remeasurements without stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(8)	(6)
Lifetime expected credit losses | Stage 3 | Model changes
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0	0
Lifetime expected credit losses | Stage 3 | Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(50)	99
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Total ECL allowances and provisions	(153)	$ 0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit Suisse
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Acquisition of Credit Suisse AG portfolios			$ 0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | ECL movement with profit or loss impact
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(67)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Net movement from new and derecognized transactions | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements with stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(67)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Private clients with mortgages
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(11)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Real estate financing
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(9)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Large corporate clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(16)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: SME clients
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(11)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Other
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(20)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Financial intermediaries and hedge funds
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	(22)
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Remeasurements without stage transfers | of which: Loans to financial advisors
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Model changes
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Movements without profit or loss impact (write-off, FX and other)
Reconciliation Of Changes In Allowance Account For Credit Losses Of Financial Assets [Line Items]
Development of ECL allowances and provisions	$ (86)

Expected credit loss measurem_9

Expected credit loss measurement - Development of ECL allowances and provisions (Narrative) (Detail) - USD ($) $ in Millions		12 Months Ended
	Jun. 12, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		$ 1,037	$ 29	$ (148)
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		593	29	(123)
Credit-impaired (stage 3 and purchased credit-impaired) positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		445
Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		378	0	$ (25)
Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Credit loss expense / (release)		67
ECL movement with profit or loss impact
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(1,037)	(29)
ECL movement with profit or loss impact | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(1,037)
Credit loss expense / (release)	$ 541
ECL movement with profit or loss impact | Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(457)	20
ECL movement with profit or loss impact | Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(136)	(49)
ECL movement with profit or loss impact | Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(378)	0
ECL movement with profit or loss impact | Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(67)
Net movement from new and derecognized transactions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		14	(7)
Net movement from new and derecognized transactions | Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(2)	(21)
Credit loss expense / (release)		2
Net movement from new and derecognized transactions | Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		9	16
Credit loss expense / (release)		9
Net movement from new and derecognized transactions | Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		7	(2)
Net movement from new and derecognized transactions | Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		0
Remeasurements with stage transfers
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(507)	(65)
Remeasurements with stage transfers | Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		42	20
Remeasurements with stage transfers | Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(149)	(39)
Credit loss expense / (release)		149
Remeasurements with stage transfers | Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(400)	(46)
Remeasurements with stage transfers | Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		0
Movements without profit or loss impact (write-off, FX and other)
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(132)	104
Movements without profit or loss impact (write-off, FX and other) | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		4
Movements without profit or loss impact (write-off, FX and other) | Credit-impaired (stage 3 and purchased credit-impaired) positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(136)
Movements without profit or loss impact (write-off, FX and other) | Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		17	3
Movements without profit or loss impact (write-off, FX and other) | Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(13)	1
Movements without profit or loss impact (write-off, FX and other) | Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(50)	$ 99
Movements without profit or loss impact (write-off, FX and other) | Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		(86)
Write offs | Credit-impaired (stage 3 and purchased credit-impaired) positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		93
FX and other movements | Credit-impaired (stage 3 and purchased credit-impaired) positions
Disclosure Of Provision Matrix [Line Items]
Increase / decrease in ECL allowances		$ (229)

Expected credit loss measure_10

Expected credit loss measurement - ECL stage 2 allowances / provisions - classification by trigger (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (2,261)	$ (1,091)	$ (1,165)
Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	1,115
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(700)	(259)	(282)
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(416)	(267)	(220)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(97)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(35)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(133)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(60)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(11)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(5)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Loans to financial advisors
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(13)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(19)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | Stage 1 and 2 positions | of which: Other
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(40)
Lifetime expected credit losses | of which: PD layer
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(221)
Lifetime expected credit losses | of which: PD layer | of which: Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(69)
Lifetime expected credit losses | of which: PD layer | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(23)
Lifetime expected credit losses | of which: PD layer | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(54)
Lifetime expected credit losses | of which: PD layer | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(27)
Lifetime expected credit losses | of which: PD layer | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: PD layer | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(4)
Lifetime expected credit losses | of which: PD layer | of which: Loans to financial advisors
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: PD layer | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: PD layer | of which: Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(9)
Lifetime expected credit losses | of which: PD layer | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: PD layer | of which: Other
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(36)
Lifetime expected credit losses | of which: watch list
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(123)
Lifetime expected credit losses | of which: watch list | of which: Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(5)
Lifetime expected credit losses | of which: watch list | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(2)
Lifetime expected credit losses | of which: watch list | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(77)
Lifetime expected credit losses | of which: watch list | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(24)
Lifetime expected credit losses | of which: watch list | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(11)
Lifetime expected credit losses | of which: watch list | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: watch list | of which: Loans to financial advisors
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: watch list | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: watch list | of which: Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: watch list | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | of which: watch list | of which: Other
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(4)
Lifetime expected credit losses | of which: 30 days past due
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(71)
Lifetime expected credit losses | of which: 30 days past due | of which: Private clients with mortgages
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(22)
Lifetime expected credit losses | of which: 30 days past due | of which: Real estate financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(10)
Lifetime expected credit losses | of which: 30 days past due | of which: Large corporate clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(2)
Lifetime expected credit losses | of which: 30 days past due | of which: SME clients
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(10)
Lifetime expected credit losses | of which: 30 days past due | of which: Lombard
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: 30 days past due | of which: Financial intermediaries and hedge funds
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | of which: 30 days past due | of which: Loans to financial advisors
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | of which: 30 days past due | of which: Credit cards
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(13)
Lifetime expected credit losses | of which: 30 days past due | of which: Consumer financing
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(11)
Lifetime expected credit losses | of which: 30 days past due | of which: Commodity trade finance
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	0
Lifetime expected credit losses | of which: 30 days past due | of which: Other
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	(1)
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Provision Matrix [Line Items]
Total ECL allowances and provisions	$ (993)	$ (564)	$ (662)

Expected credit loss measure_11

Expected credit loss measurement - Maximum exposure to credit risk (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL
Credit enhancements
Collateral and credit enhancements related to credit-impaired financial assets measured at amortized cost	$ 3,824	$ 1,372
Collateral and credit enhancements related to off-balance sheet financial instruments and other credit lines for credit-impaired positions	237	113
Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	1,192,000	729,800
Collateral
Cash collateral received	40,400	33,700
Collateralized by equity and debt instruments	228,500	181,000
Secured by real estate	373,000	197,900
Other collateral	47,500	23,400
Credit enhancements
Netting	32,900	22,900
Credit derivative contracts	0	0
Guarantees and sub-participations	12,100	3,000
Exposure to credit risk after collateral and credit enhancements	457,600	268,000
Total maximum exposure to credit risk reflected on the balance sheet within the scope of ECL | Financial Assets At Amortised Cost [Member] | of which: Credit Suisse
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	443,400
Collateral
Cash collateral received	12,700
Collateralized by equity and debt instruments	51,600
Secured by real estate	150,200
Other collateral	18,400
Credit enhancements
Netting	10,100
Credit derivative contracts	0
Guarantees and sub-participations	9,300
Exposure to credit risk after collateral and credit enhancements	191,100
Total financial assets measured at amortized cost | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	1,189,800	727,600
Collateral
Cash collateral received	40,400	33,700
Collateralized by equity and debt instruments	228,500	181,000
Secured by real estate	373,000	197,900
Other collateral	47,500	23,400
Credit enhancements
Netting	32,900	22,900
Credit derivative contracts	0	0
Guarantees and sub-participations	12,100	3,000
Exposure to credit risk after collateral and credit enhancements	455,400	265,800
Cash and balances at central banks | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	314,100	169,400
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	314,100	169,400
Amounts due from banks | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	21,200	14,800
Collateral
Cash collateral received	0
Collateralized by equity and debt instruments	200	0
Other collateral	200
Credit enhancements
Guarantees and sub-participations	300	100
Exposure to credit risk after collateral and credit enhancements	20,500	14,700
Receivables from securities financing transactions measured at amortized cost | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	99,000	67,800
Collateral
Cash collateral received	0	0
Collateralized by equity and debt instruments	95,600	64,500
Other collateral	2,800	2,400
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	700	900
Cash collateral receivables on derivative instruments | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	50,100	35,000
Credit enhancements
Netting	32,900	22,900
Exposure to credit risk after collateral and credit enhancements	17,200	12,100
Loans and advances to customers | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	639,800	387,200
Collateral
Cash collateral received	40,200	33,600
Collateralized by equity and debt instruments	131,900	115,900
Secured by real estate	372,900	197,800
Other collateral	38,900	19,600
Credit enhancements
Credit derivative contracts	0
Guarantees and sub-participations	11,900	3,000
Exposure to credit risk after collateral and credit enhancements	44,100	17,300
Other financial assets measured at amortized cost | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	65,500	53,300
Collateral
Cash collateral received	100	100
Collateralized by equity and debt instruments	800	500
Secured by real estate	100	0
Other collateral	5,700	1,300
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	58,800	51,300
Financial assets measured at fair value through other comprehensive income - debt | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	2,200	2,200
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	2,200	2,200
Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	319,200	107,200
Collateral
Cash collateral received	23,700	1,600
Collateralized by equity and debt instruments	101,600	24,400
Secured by real estate	20,100	7,500
Other collateral	26,600	14,700
Credit enhancements
Netting	0	0
Credit derivative contracts	500	100
Guarantees and sub-participations	14,800	3,300
Exposure to credit risk after collateral and credit enhancements	131,800	55,700
Total maximum exposure to credit risk not reflected on the balance sheet within the scope of ECL | Financial Assets At Amortised Cost [Member] | of which: Credit Suisse
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	186,900
Collateral
Cash collateral received	21,400
Collateralized by equity and debt instruments	60,300
Secured by real estate	11,100
Other collateral	10,900
Credit enhancements
Netting	0
Credit derivative contracts	500
Guarantees and sub-participations	11,300
Exposure to credit risk after collateral and credit enhancements	71,500
Guarantees | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	46,100	22,100
Collateral
Cash collateral received	2,900	1,200
Collateralized by equity and debt instruments	21,400	9,300
Secured by real estate	300	100
Other collateral	3,400	2,000
Credit enhancements
Credit derivative contracts	100
Guarantees and sub-participations	4,600	1,800
Exposure to credit risk after collateral and credit enhancements	13,300	7,700
Loan commitments | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	91,500	39,900
Collateral
Cash collateral received	500	200
Collateralized by equity and debt instruments	3,200	3,100
Secured by real estate	2,200	1,300
Other collateral	17,100	6,500
Credit enhancements
Credit derivative contracts	400	100
Guarantees and sub-participations	5,900	1,000
Exposure to credit risk after collateral and credit enhancements	62,300	27,800
Forward starting transactions, reverse repurchase and securities borrowing agreements | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	18,400	3,800
Collateral
Collateralized by equity and debt instruments	18,400	3,800
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	0	0
Committed unconditionally revocable credit lines | Financial Assets At Amortised Cost [Member]
Maximum Exposure To Credit Risk Expected Credit Loss [Line Items]
Maximum exposure to credit risk	163,200	41,400
Collateral
Cash collateral received	20,300	200
Collateralized by equity and debt instruments	58,500	8,200
Secured by real estate	17,600	6,000
Other collateral	6,200	6,200
Credit enhancements
Guarantees and sub-participations	4,400	500
Exposure to credit risk after collateral and credit enhancements	$ 56,200	$ 20,200

Expected credit loss measure_12

Expected credit loss measurement - Financial assets subject to credit risk by rating category (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	$ 1,192,006	$ 729,807
Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,189,773	727,568
Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	314,148	169,445
Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	21,161	14,792
Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	99,039	67,814
Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	50,082	35,032
Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	639,844	387,220
Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	65,498	53,264
Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,233	2,239
Twelve-month expected credit losses | Stage 1 and 2 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,161,816	712,078
Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,159,583	709,839
Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	314,025	169,402
Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	21,107	14,792
Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	99,039	67,814
Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	50,082	35,032
Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	611,019	370,095
Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	64,311	52,704
Lifetime expected credit losses | Stage 1 and 2 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,410	16,044
Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	18	44
Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	17	1
Lifetime expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	24,408	15,587
Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	968	413
Lifetime expected credit losses | Stage 3 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	3,027	1,685
Lifetime expected credit losses | Stage 3 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,869	1,538
Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	158	147
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,753
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	106
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	38
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,548
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	61
Gross carrying amount | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,193,916	730,696
Gross carrying amount | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,191,683	728,457
Gross carrying amount | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	314,197	169,457
Gross carrying amount | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	21,174	14,798
Gross carrying amount | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	99,041	67,816
Gross carrying amount | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	50,082	35,033
Gross carrying amount | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	641,542	388,003
Gross carrying amount | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	65,648	53,350
Gross carrying amount | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,233	2,239
Gross carrying amount | 0-1 | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	339,794	243,966
Gross carrying amount | 0-1 | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	338,572	242,660
Gross carrying amount | 0-1 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	251,462	168,525
Gross carrying amount | 0-1 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,081	862
Gross carrying amount | 0-1 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	45,838	27,158
Gross carrying amount | 0-1 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	8,009	10,613
Gross carrying amount | 0-1 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,428	6,491
Gross carrying amount | 0-1 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,755	29,011
Gross carrying amount | 0-1 | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,222	1,307
Gross carrying amount | 2-3 | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	452,736	273,916
Gross carrying amount | 2-3 | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	451,886	273,076
Gross carrying amount | 2-3 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	61,936	877
Gross carrying amount | 2-3 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	15,454	12,257
Gross carrying amount | 2-3 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	30,171	15,860
Gross carrying amount | 2-3 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	30,334	12,977
Gross carrying amount | 2-3 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	288,117	214,473
Gross carrying amount | 2-3 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,875	16,632
Gross carrying amount | 2-3 | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	850	840
Gross carrying amount | 4-5 | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	199,428	85,671
Gross carrying amount | 4-5 | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	199,428	85,671
Gross carrying amount | 4-5 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	627	0
Gross carrying amount | 4-5 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,215	860
Gross carrying amount | 4-5 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,397	8,870
Gross carrying amount | 4-5 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,425	7,138
Gross carrying amount | 4-5 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	180,889	68,356
Gross carrying amount | 4-5 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,875	447
Gross carrying amount | 4-5 | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | 6-8 | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	151,264	101,228
Gross carrying amount | 6-8 | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	151,103	101,136
Gross carrying amount | 6-8 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | 6-8 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,589	440
Gross carrying amount | 6-8 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	15,544	15,207
Gross carrying amount | 6-8 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5,117	4,157
Gross carrying amount | 6-8 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	119,191	74,732
Gross carrying amount | 6-8 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	9,662	6,600
Gross carrying amount | 6-8 | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	161	92
Gross carrying amount | 9-13 | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	44,844	23,693
Gross carrying amount | 9-13 | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	44,844	23,693
Gross carrying amount | 9-13 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43	56
Gross carrying amount | 9-13 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	792	379
Gross carrying amount | 9-13 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,091	721
Gross carrying amount | 9-13 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	198	147
Gross carrying amount | 9-13 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	41,557	21,939
Gross carrying amount | 9-13 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,163	450
Gross carrying amount | 9-13 | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Credit-impaired (defaulted) | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5,849	2,222
Gross carrying amount | Credit-impaired (defaulted) | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5,849	2,222
Gross carrying amount | Credit-impaired (defaulted) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	128	0
Gross carrying amount | Credit-impaired (defaulted) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43	0
Gross carrying amount | Credit-impaired (defaulted) | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Credit-impaired (defaulted) | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Credit-impaired (defaulted) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5,360	2,012
Gross carrying amount | Credit-impaired (defaulted) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	318	210
Gross carrying amount | Credit-impaired (defaulted) | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	314,025	169,402
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	21,113	14,797
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	99,041	67,816
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	50,082	35,033
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	611,443	370,224
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	64,352	52,721
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	251,462	168,525
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,081	862
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	45,838	27,158
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	8,009	10,613
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,428	6,491
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,755	29,011
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	61,936	877
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	15,453	12,257
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	30,171	15,860
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	30,334	12,977
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	286,683	212,980
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	25,788	16,630
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	627	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,210	860
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,397	8,870
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6,425	7,138
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	178,059	66,114
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,854	427
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,589	440
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	15,544	15,207
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5,117	4,157
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	109,996	68,034
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	9,113	6,317
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	780	378
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,091	721
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	198	147
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	30,276	16,605
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	841	336
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43	56
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	18	1
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	24,697	15,767
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	978	419
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,428	1,493
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	87	2
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	5	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	2,829	2,242
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	21	20
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	9,171	6,698
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	548	283
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43	56
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	12	1
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	11,269	5,334
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	321	114
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	3,731	2,012
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	253	210
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 0-1 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 0-1 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 0-1 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 2-3 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 2-3 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 2-3 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 4-5 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 4-5 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 4-5 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 6-8 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 6-8 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 6-8 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 9-13 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 9-13 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | 9-13 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets		0
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	3,731	2,012
Gross carrying amount | Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	253	210
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	128
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,671
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	66
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	6
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	24
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	12
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	128
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	43
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	1,629
Gross carrying amount | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	64
Allowance for expected credit loss | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(1,911)	(889)
Allowance for expected credit loss | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(1,911)	(889)
Allowance for expected credit loss | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(48)	(12)
Allowance for expected credit loss | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(12)	(6)
Allowance for expected credit loss | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(2)	(2)
Allowance for expected credit loss | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(1,698)	(783)
Allowance for expected credit loss | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(151)	(86)
Allowance for expected credit loss | Financial assets measured at FVOCI - debt instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(473)	(154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(473)	(154)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(6)	(5)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(2)	(2)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(423)	(129)
Allowance for expected credit loss | Twelve-month expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(41)	(17)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(326)	(199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(326)	(199)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(26)	(12)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(1)	(1)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(289)	(180)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 1 and 2 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(10)	(6)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(956)	(537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(956)	(537)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Cash collateral receivables on derivative instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	0	0
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Loans and advances to customers
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(862)	(474)
Allowance for expected credit loss | Lifetime expected credit losses | Stage 3 positions | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(94)	$ (63)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total on balance sheet financial instruments
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(156)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Total financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(156)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Cash and balances at central banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(22)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Amounts due from banks
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	(5)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Receivables from securities financing transactions measured at amortized cost
Disclosure Of Internal Credit Exposures [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 Internal Credit Exposures [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 Internal Credit Exposures [Line Items]
Financial assets	(123)
Allowance for expected credit loss | Lifetime expected credit losses | Purchased credit-impaired (PCI) | Other financial assets measured at amortized cost
Disclosure Of Internal Credit Exposures [Line Items]
Financial assets	$ (5)

Expected credit loss measure_13

Expected credit loss measurement - Off-balance sheet positions subject to expected credit loss by rating category (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	$ 324,141	$ 112,050
Total ECL provisions	(350)	(201)
Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	156,278	65,964
Total ECL provisions	(251)	(159)
Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	46,191	22,167
Total ECL provisions	(73)	(48)
Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	91,643	39,996
Total ECL provisions	(178)	(111)
Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	18,444	3,801
Total ECL provisions	0	0
Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	167,864	46,086
Total ECL provisions	(99)	(42)
Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	163,256	41,390
Total ECL provisions	(95)	(40)
Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4,608	4,696
Total ECL provisions	(4)	(2)
0-1 | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	29,679	11,803
0-1 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	17,805	7,252
0-1 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,722	1,770
0-1 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	10,152	2,781
0-1 | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2,663	2,295
0-1 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2,659	2,288
0-1 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4	7
2-3 | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	42,899	20,874
2-3 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	10,961	5,961
2-3 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	31,936	14,912
2-3 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2	2
2-3 | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	110,197	17,857
2-3 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	108,395	15,918
2-3 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,803	1,939
4-5 | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	33,554	11,769
4-5 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	9,421	4,772
4-5 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	24,050	6,986
4-5 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	84	11
4-5 | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	29,714	10,736
4-5 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	28,669	9,247
4-5 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,045	1,489
6-8 | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	33,783	14,153
6-8 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	5,916	3,049
6-8 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	19,661	10,097
6-8 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	8,206	1,007
6-8 | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	18,990	11,030
6-8 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	17,739	10,162
6-8 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,251	868
9-13 | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	15,888	7,132
9-13 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,882	1,025
9-13 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	14,006	6,107
9-13 | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
9-13 | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	6,149	4,131
9-13 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	5,648	3,739
9-13 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	501	392
Credit-impaired (defaulted) | Off Balance Sheet Financial Instruments Without Other Credit Lines [Member]
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	473	233
Credit-impaired (defaulted) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	207	108
Credit-impaired (defaulted) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	266	124
Credit-impaired (defaulted) | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Credit-impaired (defaulted) | Total other credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	150	37
Credit-impaired (defaulted) | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	146	36
Credit-impaired (defaulted) | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4	2
Twelve-month expected credit losses | Stage 1 and 2 positions
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	315,060	105,258
Total ECL provisions	(226)	(106)
Twelve-month expected credit losses | Stage 1 and 2 positions | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	44,487	19,805
Total ECL provisions	(28)	(13)
Twelve-month expected credit losses | Stage 1 and 2 positions | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	87,080	37,531
Total ECL provisions	(117)	(59)
Twelve-month expected credit losses | Stage 1 and 2 positions | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	18,444	3,801
Total ECL provisions	0	0
Twelve-month expected credit losses | Stage 1 and 2 positions | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	160,456	39,521
Total ECL provisions	(78)	(32)
Twelve-month expected credit losses | Stage 1 and 2 positions | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4,593	4,600
Total ECL provisions	(4)	(2)
Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	17,805	7,252
Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,722	1,770
Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2,659	2,288
Twelve-month expected credit losses | Stage 1 and 2 positions | 0-1 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4	7
Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	10,922	5,917
Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	31,936	14,789
Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	107,992	15,213
Twelve-month expected credit losses | Stage 1 and 2 positions | 2-3 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,803	1,938
Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	9,310	3,812
Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	23,989	6,818
Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	28,188	8,960
Twelve-month expected credit losses | Stage 1 and 2 positions | 4-5 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,045	1,411
Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	5,054	2,229
Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	19,079	9,625
Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	16,921	9,631
Twelve-month expected credit losses | Stage 1 and 2 positions | 6-8 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,249	864
Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,398	596
Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	10,354	4,529
Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4,696	3,429
Twelve-month expected credit losses | Stage 1 and 2 positions | 9-13 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	493	380
Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Twelve-month expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	8,456	6,522
Total ECL provisions	(90)	(69)
Lifetime expected credit losses | Stage 1 and 2 positions | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1,495	2,254
Total ECL provisions	(22)	(9)
Lifetime expected credit losses | Stage 1 and 2 positions | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4,297	2,341
Total ECL provisions	(51)	(52)
Lifetime expected credit losses | Stage 1 and 2 positions | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2,654	1,833
Total ECL provisions	(17)	(8)
Lifetime expected credit losses | Stage 1 and 2 positions | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	11	94
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | 0-1 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	39	44
Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	123
Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	403	705
Lifetime expected credit losses | Stage 1 and 2 positions | 2-3 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	1
Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	111	960
Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	62	168
Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	481	287
Lifetime expected credit losses | Stage 1 and 2 positions | 4-5 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	78
Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	861	821
Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	583	472
Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	818	531
Lifetime expected credit losses | Stage 1 and 2 positions | 6-8 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	2	4
Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	484	429
Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	3,652	1,578
Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	952	310
Lifetime expected credit losses | Stage 1 and 2 positions | 9-13 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	9	11
Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 1 and 2 positions | Credit-impaired (defaulted) | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	519	270
Total ECL provisions	(37)	(26)
Lifetime expected credit losses | Stage 3 positions | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	151	108
Total ECL provisions	(23)	(26)
Lifetime expected credit losses | Stage 3 positions | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	218	124
Total ECL provisions	(14)	0
Lifetime expected credit losses | Stage 3 positions | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 positions | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	146	36
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 positions | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4	2
Total ECL provisions	0	0
Lifetime expected credit losses | Stage 3 positions | 0-1 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 0-1 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 0-1 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 0-1 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 2-3 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 2-3 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 2-3 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 2-3 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 4-5 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 4-5 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 4-5 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 4-5 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 6-8 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 6-8 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 6-8 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 6-8 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 9-13 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 9-13 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 9-13 | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | 9-13 | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0	0
Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	151	108
Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	218	124
Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	146	36
Lifetime expected credit losses | Stage 3 positions | Credit-impaired (defaulted) | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	4	$ 2
Lifetime expected credit losses | Purchased credit-impaired (PCI)
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	106
Total ECL provisions	3
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	58
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	48
Total ECL provisions	4
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Forward starting reverse repurchase and securities borrowing agreements
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Committed unconditionally revocable credit lines
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Irrevocable committed prolongation of existing loans
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Total ECL provisions	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 0-1 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 2-3 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 4-5 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 6-8 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	1
Lifetime expected credit losses | Purchased credit-impaired (PCI) | 9-13 | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	0
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Guarantees
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	56
Lifetime expected credit losses | Purchased credit-impaired (PCI) | Credit-impaired (defaulted) | Irrevocable loan commitments
Disclosure Of Off Balance Sheet Positions Subject To Expected Credit Loss By Rating Category [Line Items]
Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts	$ 48

Expected credit loss measure_14

Expected credit loss measurement - Sensitivity analysis (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (2,261)	$ (1,091)	$ (1,165)
Weighted average
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (1,115)	$ (526)
ECL with adjusted probabilities of scenario weights in percent of baseline	134%	160%
Baseline
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (832)	$ (329)
Lifetime weighted average
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(2,225)	$ (1,267)
Stage 1 and 2 positions
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ 1,115

Expected credit loss measure_15

Expected credit loss measurement - Potential effect on stage 1 and stage 2 positions from changing key parameters (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
100% Baseline | Fixed income: Government bonds (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	$ (7)
100% Baseline | Fixed income: Government bonds (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	8
100% Baseline | Fixed income: Government bonds (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	17
100% Baseline | Unemployment rate (absolute change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(6)
100% Baseline | Unemployment rate (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(3)
100% Baseline | Unemployment rate (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	3
100% Baseline | Unemployment rate (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	7
100% Baseline | Real GDP growth (relative change) | Minus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	49
100% Baseline | Real GDP growth (relative change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	25
100% Baseline | Real GDP growth (relative change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(20)
100% Baseline | Real GDP growth (relative change) | Plus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(39)
100% Baseline | House Price Index (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	17
100% Baseline | House Price Index (relative change) | Minus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	8
100% Baseline | House Price Index (relative change) | Plus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(7)
100% Baseline | House Price Index (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(11)
100% Baseline | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	4
100% Baseline | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	2
100% Baseline | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(2)
100% Baseline | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(3)
100% Stagflationary geopolitical crisis | Fixed income: Government bonds (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(164)
100% Stagflationary geopolitical crisis | Fixed income: Government bonds (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	186
100% Stagflationary geopolitical crisis | Fixed income: Government bonds (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	396
100% Stagflationary geopolitical crisis | Unemployment rate (absolute change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(144)
100% Stagflationary geopolitical crisis | Unemployment rate (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(77)
100% Stagflationary geopolitical crisis | Unemployment rate (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	90
100% Stagflationary geopolitical crisis | Unemployment rate (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	189
100% Stagflationary geopolitical crisis | Real GDP growth (relative change) | Minus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	84
100% Stagflationary geopolitical crisis | Real GDP growth (relative change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	40
100% Stagflationary geopolitical crisis | Real GDP growth (relative change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(37)
100% Stagflationary geopolitical crisis | Real GDP growth (relative change) | Plus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(71)
100% Stagflationary geopolitical crisis | House Price Index (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	249
100% Stagflationary geopolitical crisis | House Price Index (relative change) | Minus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	120
100% Stagflationary geopolitical crisis | House Price Index (relative change) | Plus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(105)
100% Stagflationary geopolitical crisis | House Price Index (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(204)
100% Stagflationary geopolitical crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	10
100% Stagflationary geopolitical crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	5
100% Stagflationary geopolitical crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(5)
100% Stagflationary geopolitical crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(8)
100% Mild debt crisis | Fixed income: Government bonds (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(7)
100% Mild debt crisis | Fixed income: Government bonds (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	10
100% Mild debt crisis | Fixed income: Government bonds (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	23
100% Mild debt crisis | Unemployment rate (absolute change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(8)
100% Mild debt crisis | Unemployment rate (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(4)
100% Mild debt crisis | Unemployment rate (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	4
100% Mild debt crisis | Unemployment rate (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	8
100% Mild debt crisis | Real GDP growth (relative change) | Minus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	73
100% Mild debt crisis | Real GDP growth (relative change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	36
100% Mild debt crisis | Real GDP growth (relative change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(35)
100% Mild debt crisis | Real GDP growth (relative change) | Plus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(63)
100% Mild debt crisis | House Price Index (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	25
100% Mild debt crisis | House Price Index (relative change) | Minus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	12
100% Mild debt crisis | House Price Index (relative change) | Plus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(9)
100% Mild debt crisis | House Price Index (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(19)
100% Mild debt crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	8
100% Mild debt crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	3
100% Mild debt crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(3)
100% Mild debt crisis | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(5)
Weighted average | Fixed income: Government bonds (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(21)
Weighted average | Fixed income: Government bonds (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	25
Weighted average | Fixed income: Government bonds (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	59
Weighted average | Unemployment rate (absolute change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(22)
Weighted average | Unemployment rate (absolute change) | Minus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(12)
Weighted average | Unemployment rate (absolute change) | Plus 0.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	14
Weighted average | Unemployment rate (absolute change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	28
Weighted average | Real GDP growth (relative change) | Minus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	58
Weighted average | Real GDP growth (relative change) | Minus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	30
Weighted average | Real GDP growth (relative change) | Plus 1.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(26)
Weighted average | Real GDP growth (relative change) | Plus 2.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(50)
Weighted average | House Price Index (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	53
Weighted average | House Price Index (relative change) | Minus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	24
Weighted average | House Price Index (relative change) | Plus 2.50 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(20)
Weighted average | House Price Index (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(38)
Weighted average | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	6
Weighted average | Equity (S&P500, EuroStoxx, SMI) (relative change) | Minus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	2
Weighted average | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 5.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	(2)
Weighted average | Equity (S&P500, EuroStoxx, SMI) (relative change) | Plus 10.00 percent
Disclosure Of Key Macro Economic Variables Used For Expected Credit Loss Model [Line Items]
Economic forecast financial effect	$ (4)

Expected credit loss measure_16

Expected credit loss measurement - Potential effect on stage 1 and stage 2 positions from changing scenario weights or moving to an ECL lifetime calculation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (2,261)	$ (1,091)	$ (1,165)
Weighted average
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (1,115)	$ (526)
ECL with adjusted probabilities of scenario weights in percent of baseline	134%	160%
Weighted average | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (161)	$ (136)
Weighted average | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(88)	(43)
Weighted average | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(368)	(136)
Weighted average | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(188)	(86)
Weighted average | Ship financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(48)
Weighted average | Consumer financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(74)
Weighted average | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(189)	(125)
100% Baseline
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(832)	(329)
100% Baseline | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(66)	(25)
100% Baseline | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(53)	(26)
100% Baseline | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(282)	(97)
100% Baseline | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(158)	(67)
100% Baseline | Ship financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(46)
100% Baseline | Consumer financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(71)
100% Baseline | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(157)	(114)
100% Asset price inflation
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(295)
100% Asset price inflation | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(13)
100% Asset price inflation | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(22)
100% Asset price inflation | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(84)
100% Asset price inflation | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(66)
100% Asset price inflation | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(111)
100% Stagflationary geopolitical crisis
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(2,317)	(1,204)
100% Stagflationary geopolitical crisis | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(816)	(523)
100% Stagflationary geopolitical crisis | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(293)	(176)
100% Stagflationary geopolitical crisis | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(533)	(199)
100% Stagflationary geopolitical crisis | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(274)	(162)
100% Stagflationary geopolitical crisis | Ship financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(50)
100% Stagflationary geopolitical crisis | Consumer financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(81)
100% Stagflationary geopolitical crisis | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(269)	(145)
100% Mild debt crisis
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(1,095)
100% Mild debt crisis | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(81)
100% Mild debt crisis | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(49)
100% Mild debt crisis | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(419)
100% Mild debt crisis | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(226)
100% Mild debt crisis | Ship financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(49)
100% Mild debt crisis | Consumer financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(75)
100% Mild debt crisis | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(197)
100% Global crisis
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(638)
100% Global crisis | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(184)
100% Global crisis | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(30)
100% Global crisis | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(174)
100% Global crisis | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(97)
100% Global crisis | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions		(153)
Lifetime weighted average
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(2,225)	(1,267)
Lifetime weighted average | Private clients with mortgages
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(409)	(473)
Lifetime weighted average | Real estate financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(196)	(126)
Lifetime weighted average | Large corporate clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(645)	(235)
Lifetime weighted average | SME clients
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(296)	(153)
Lifetime weighted average | Ship financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(125)
Lifetime weighted average | Consumer financing
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	(186)
Lifetime weighted average | Other segments
ECL Measurement Sensitivity Analysis [Line Items]
Total ECL allowances and provisions	$ (368)	$ (281)

Fair value measurement (Narrati

Fair value measurement (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Fair Value Measurement [Line Items]
Gains / (losses) from own credit on financial liabilities designated at fair value, before tax	$ (1,850)	$ 867	$ 46
Own credit adjustments on financial liabilities designated at fair value	(1,287)	$ 556	$ (315)
Credit Suisse
Disclosure Of Fair Value Measurement [Line Items]
Own credit adjustments on financial liabilities designated at fair value	$ (974)

FVM - Fair value hierarchy - As

FVM - Fair value hierarchy - Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	$ 169,633	$ 107,866
Derivative financial instruments	176,084	150,108
Brokerage receivables	21,037	17,576
Financial assets at fair value not held for trading	104,018	59,796
Financial assets measured at fair value through other comprehensive income	2,233	2,239
Non-financial assets - Precious metals and other physical commodities	5,930	4,471
Other non-financial assets measured at fair value	31	110
Total assets measured at fair value	$ 478,966	342,166
Pfandbriefbank schweizerischer Hypothekarinstitute AG
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Voting right held by the entity	20%
Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	$ 47,400
Total assets measured at fair value	124,603
Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	104,325	83,988
Financial assets at fair value not held for trading	3,241	849
Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	15,830	6,464
Financial assets at fair value not held for trading	19,107	16,741
Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	9,645	7,330
Financial assets at fair value not held for trading	1,592	1,063
Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	15,069	7,880
Financial assets at fair value not held for trading	17,000	14,366
Financial assets measured at fair value through other comprehensive income	276	335
Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	23,456	1,807
Financial assets at fair value not held for trading	6,510	4,337
Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	248	397
Financial assets at fair value not held for trading	1,704	0
Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	78,659	85,458
Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	55,597	39,805
Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	35,473	22,195
Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	3,969	1,038
Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	1,883	1,365
Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	1,208	1,326
Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	36,909	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	15,884	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	1,948	1,878
Level 1
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	118,975	96,241
Derivative financial instruments	622	769
Brokerage receivables	0	0
Financial assets at fair value not held for trading	30,717	26,572
Financial assets measured at fair value through other comprehensive income	68	57
Non-financial assets - Precious metals and other physical commodities	5,930	4,471
Other non-financial assets measured at fair value	0	0
Total assets measured at fair value	156,312	128,110
Level 1 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	7,015
Level 1 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	102,602	83,074
Financial assets at fair value not held for trading	105	57
Level 1 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	6,995	5,496
Financial assets at fair value not held for trading	14,306	13,103
Level 1 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	8,392	6,673
Financial assets at fair value not held for trading	367	307
Level 1 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	984	976
Financial assets at fair value not held for trading	62	35
Financial assets measured at fair value through other comprehensive income	68	57
Level 1 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	0	0
Financial assets at fair value not held for trading	0	0
Level 1 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	3	22
Financial assets at fair value not held for trading	0	0
Level 1 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	347	575
Level 1 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	0	0
Level 1 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	0	1
Level 1 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	0	0
Level 1 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	1	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
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
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	15,877	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
Level 2
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	28,045	10,138
Derivative financial instruments	172,903	147,875
Brokerage receivables	21,037	17,576
Financial assets at fair value not held for trading	64,865	29,498
Financial assets measured at fair value through other comprehensive income	2,165	2,182
Non-financial assets - Precious metals and other physical commodities	0	0
Other non-financial assets measured at fair value	0	0
Total assets measured at fair value	289,015	207,269
Level 2 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	91,133
Level 2 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,403	789
Financial assets at fair value not held for trading	38	0
Level 2 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	8,763	950
Financial assets at fair value not held for trading	4,801	3,638
Level 2 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,124	596
Financial assets at fair value not held for trading	548	566
Level 2 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	12,801	6,363
Financial assets at fair value not held for trading	16,722	14,101
Financial assets measured at fair value through other comprehensive income	207	278
Level 2 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	3,837	1,179
Financial assets at fair value not held for trading	4,252	3,602
Level 2 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	112	261
Financial assets at fair value not held for trading	1,525	0
Level 2 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	78,060	84,881
Level 2 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	55,190	39,345
Level 2 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	34,174	21,542
Level 2 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	3,456	719
Level 2 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	1,869	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
Level 2 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	36,857	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	7	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	1,948	1,878
Level 3
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	22,613	1,488
Derivative financial instruments	2,559	1,464
Brokerage receivables	0	0
Financial assets at fair value not held for trading	8,435	3,725
Financial assets measured at fair value through other comprehensive income	0	0
Non-financial assets - Precious metals and other physical commodities	0	0
Other non-financial assets measured at fair value	31	110
Total assets measured at fair value	33,639	6,788
Level 3 | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Total assets measured at fair value	26,455
Level 3 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	321	126
Financial assets at fair value not held for trading	3,097	792
Total assets measured at fair value	3,400	900
Level 3 | Equity instruments | Pfandbriefbank schweizerischer Hypothekarinstitute AG
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	600
Level 3 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	73	18
Financial assets at fair value not held for trading	0	0
Level 3 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	129	61
Financial assets at fair value not held for trading	678	190
Total assets measured at fair value	800	300
Level 3 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	1,284	541
Financial assets at fair value not held for trading	215	230
Financial assets measured at fair value through other comprehensive income	0	0
Total assets measured at fair value	1,500	800
Level 3 | Loans
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	19,618	628
Financial assets at fair value not held for trading	2,258	736
Level 3 | Loans | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Increase / (decrease) in financial assets at fair value held for trading	19,000
Level 3 | Loans | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Levelling of financial assets at fair value held for trading	2,400
Level 3 | Securitized lending facilities | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Increase / (decrease) in financial assets at fair value held for trading	5,000
Level 3 | Loans with securitization collateral | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Increase / (decrease) in financial assets at fair value held for trading	6,000
Level 3 | Revolving loan facilities | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Increase / (decrease) in financial assets at fair value held for trading	3,000
Level 3 | Asset-backed securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value held for trading	133	114
Financial assets at fair value not held for trading	180	0
Level 3 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	253	2
Level 3 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	407	460
Level 3 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	1,299	653
Level 3 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	513	318
Level 3 | Commodity contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Derivative financial instruments	13	30
Level 3 | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	1,208	1,326
Total assets measured at fair value	1,200	1,300
Level 3 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Financial assets at fair value not held for trading	52	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
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

FVM - Fair value hierarchy - Li

FVM - Fair value hierarchy - Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	$ 34,159	$ 29,515
Derivative financial instruments	192,181	154,906
Brokerage payables designated at fair value	42,522	45,085
Debt issued designated at fair value	128,289	73,638
Other financial liabilities designated at fair value	29,484	30,237
Total financial liabilities measured at fair value through profit or loss	426,635	333,381
Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	53,500
Debt issued designated at fair value	37,200
Other financial liabilities designated at fair value	5,114
Total financial liabilities measured at fair value through profit or loss	98,519
Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	18,606	16,951
Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	5,071	4,707
Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	9,464	6,587
Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	954	1,229
Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	89,887	88,508
Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	52,920	37,545
Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	41,380	26,148
Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	4,700	1,199
Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	1,458	1,361
Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	1,172	43
Financial liabilities related to unit-linked investment contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	15,992	13,221
Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	7,416	15,333
Over-the-counter debt instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	6,076	1,684
Level 1
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	27,684	23,578
Derivative financial instruments	771	640
Brokerage payables designated at fair value	0	0
Debt issued designated at fair value	0	0
Other financial liabilities designated at fair value	0	0
Total financial liabilities measured at fair value through profit or loss	28,454	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	2,355
Level 1 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	18,266	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	28	36
Level 1 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	8,559	5,880
Level 1 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	832	1,141
Level 1 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	457	587
Level 1 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	0	0
Level 1 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	0	0
Level 1 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	0	0
Level 1 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	0	0
Level 1 | Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	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
Level 1 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	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
Level 2
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	6,315	5,823
Derivative financial instruments	185,815	152,582
Brokerage payables designated at fair value	42,522	45,085
Debt issued designated at fair value	113,012	63,111
Other financial liabilities designated at fair value	26,878	29,547
Total financial liabilities measured at fair value through profit or loss	374,542	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	85,859
Level 2 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	248	352
Level 2 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	4,981	4,643
Level 2 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	905	706
Level 2 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	118	84
Level 2 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	89,394	87,897
Level 2 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	52,673	37,429
Level 2 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	38,046	24,963
Level 2 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	4,081	920
Level 2 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	1,437	1,309
Level 2 | Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	135	19
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	15,992	13,221
Level 2 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	7,416	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	3,471	993
Level 3
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	161	114
Derivative financial instruments	5,595	1,684
Brokerage payables designated at fair value	0	0
Debt issued designated at fair value	15,276	10,527
Other financial liabilities designated at fair value	2,606	691
Total financial liabilities measured at fair value through profit or loss	23,638	13,015
Effect of change in methodology of testing for observability on liabilities measured at fair value, if applied retrospectively	(1,300)
Change in methodology of testing for observability on liabilities measured at fair value, balance affected	1,900
Level 3 | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Effect of change in methodology of testing for observability on financial assets at fair value held for trading, applied retrospectively	2,400
Effect of change in methodology of testing for observability on derivative financial liabilities, applied retrospectively	17
Level 3 | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Total financial liabilities measured at fair value through profit or loss	10,305
Level 3 | Equity instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	92	78
Total financial liabilities measured at fair value through profit or loss	100	100
Level 3 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	62	27
Total financial liabilities measured at fair value through profit or loss	100	0
Level 3 | Government bills / bonds
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	0	1
Level 3 | Investment fund units
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Financial liabilities at fair value held for trading	4	3
Total financial liabilities measured at fair value through profit or loss	0	0
Level 3 | Foreign exchange contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	36	24
Level 3 | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	246	116
Level 3 | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	3,333	1,184
Level 3 | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	619	279
Level 3 | Commodity contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	21	52
Level 3 | Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Derivative financial instruments	1,037	24
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
Level 3 | Securities financing transactions
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Other financial liabilities designated at fair value	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	$ 2,606	$ 691

FVM - Valuation adjustment rese

FVM - Valuation adjustment reserves on the balance sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Valuation Adjustment Reserves On The Balance Sheet [Line Items]
Deferred day-1 profit or loss reserves	$ 404	$ 422	$ 418	$ 269
Own credit adjustments on financial liabilities designated at fair value	$ (1,287)	$ 556	$ (315)

FVM - Valuation adjustments_ De

FVM - Valuation adjustments: Deferred day-1 P&L (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred Day-1 Profit Or Loss [Line Items]
Reserve balance at the beginning of the period	$ 422	$ 418	$ 269
Profit / (loss) deferred on new transactions	260	299	459
(Profit) / loss recognized in the income statement	(278)	(295)	(308)
Foreign currency translation	0	0	(2)
Reserve balance at the end of the period	$ 404	$ 422	$ 418

FVM - Valuation adjustments_ Ow

FVM - Valuation adjustments: Own credit adjustments on financial liabilities designated at fair value (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Recognized during the year:
Realized gain / (loss)	$ 8	$ 1	$ (14)
Unrealized gain / (loss)	(1,858)	866	60
Total gain / (loss), before tax	(1,850)	867	46
Recognized on the balance sheet as of the end of the year:
Unrealized life-to-date gain / (loss)	(1,287)	556	(315)
of which: debt issued designated at fair value	(1,297)	453	(347)
of which: other financial liabilities designated at fair value	$ 10	$ 103	$ 32

FVM - Valuation adjustments_ Va

FVM - Valuation adjustments: Valuation adjustments on financial instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Valuation Adjustments On Financial Instruments [Line Items]
Credit valuation adjustments	$ (145)	$ (33)	$ (44)
Funding and debit valuation adjustments	(116)	(46)	(47)
Other valuation adjustments	(2,654)	(839)	(913)
of which: liquidity	(2,051)	(311)	(341)
of which: model uncertainty	(603)	$ (529)	$ (571)
Credit Suisse
Valuation Adjustments On Financial Instruments [Line Items]
Credit valuation adjustments	108
Funding and debit valuation adjustments	34
of which: liquidity	1,741
of which: model uncertainty	$ 181

FVM - Level 3 instruments_ Valu

FVM - Level 3 instruments: Valuation techniques and inputs (Detail) - Level 3 $ in Billions	Dec. 31, 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 | Relative value to market comparable | Bond price equivalent (% of par) | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.05	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)	1.26	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)	0.99	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)	0.0135	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)	0.0491	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)	0.0463
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	$ 22	$ 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)	0.01	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)	1.20	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)	0.88	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)	0.0019	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)	0.2681	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)	0.0614	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)	0.0162	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)	0.1849	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)	0.0318	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 | Discounted expected cash flows | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0135	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)	0.0205	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)	0.0150	0.0144
Debt issued designated at fair value
Disclosure Of Fair Value Measurement [Line Items]
Financial liabilities measured at fair value	$ 15.3	$ 10.5
Other financial liabilities designated at fair value
Disclosure Of Fair Value Measurement [Line Items]
Financial liabilities measured at fair value	$ 2.6	$ 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)	0.0051	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)	0.0201	0.0175
Derivative financial instruments: Interest rate contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 0.4	$ 0.5
Financial liabilities measured at fair value	$ 0.2	$ 0.1
Derivative financial instruments: Interest rate contracts | Option model | Volatility of interest rates | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0045	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)	0.0154	0.0143
Derivative financial instruments: Interest rate contracts | Option model | Volatility of inflation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.01
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)	0.04
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: Credit derivative contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 0.5	$ 0.3
Financial liabilities measured at fair value	$ 0.6	$ 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)	0.0002	0.0003
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)	0.0242	0.0277
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit spread | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0001	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)	0.2421	0.0565
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit correlation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.50
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit correlation | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.66
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit volatility | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.60
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Credit volatility | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.60
Derivative financial instruments: Credit derivative contracts | Discounted expected cash flows | Recovery rates | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.14
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)	0.0026
Derivative financial instruments: Credit derivative contracts | Option model | Credit spread | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.2159
Derivative financial instruments: Equity / index contracts
Disclosure Of Fair Value Measurement [Line Items]
Financial assets measured at fair value	$ 1.3	$ 0.7
Financial liabilities measured at fair value	$ 3.3	$ 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)	0.17	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)	1.42	1.20
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)	0.77	0.84
Derivative financial instruments: Equity / index contracts | Option model | Equity-to-equity correlation | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	(0.50)	(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
Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement [Line Items]
Financial liabilities measured at fair value	$ 1
Loan commitments measured at FVTPL | Relative value to market comparable | Loan price equivalent (% of par) | low
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0035
Loan commitments measured at FVTPL | Relative value to market comparable | Loan price equivalent (% of par) | high
Disclosure Of Fair Value Measurement [Line Items]
Significant unobservable input(s)	0.0102

FVM - Level 3 instruments_ Sens

FVM - Level 3 instruments: Sensitivity to changes in unobservable input assumptions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 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	$ 2,815	$ 738
Unfavorable changes	(2,538)	(696)
Credit Suisse
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	2,034
Unfavorable changes	(1,890)
Traded loans, loans designated 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	635	19
Unfavorable changes	(600)	(12)
Securities financing transactions
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	30	33
Unfavorable changes	(32)	(37)
Auction rate securities
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	67	46
Unfavorable changes	(21)	(46)
Asset-backed securities
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	39	27
Unfavorable changes	(36)	(27)
Equity instruments
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	430	183
Unfavorable changes	(413)	(161)
Investment fund units
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	135	19
Unfavorable changes	(137)	(21)
Loan commitments measured at FVTPL
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	313	0
Unfavorable changes	(343)	0
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	217	18
Unfavorable changes	(103)	(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	140	3
Unfavorable changes	(131)	(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	5	10
Unfavorable changes	(4)	(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	521	361
Unfavorable changes	(443)	(330)
Other
Disclosure Of Sensitivity Analysis Of Fair Value Measurement To Changes In Unobservable Inputs Assets And Liabilities [Line Items]
Favorable changes	281	20
Unfavorable changes	$ (276)	$ (41)

FVM - Movements of level 3 inst

FVM - Movements of level 3 instruments - Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	$ 342,166
Balance at the end of period	478,966	$ 342,166
Level 3
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	6,788
Balance at the end of period	33,639	6,788
Level 3 | Investment fund units
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	300
Balance at the end of period	800	300
Level 3 | Corporate and municipal bonds
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	800
Balance at the end of period	1,500	800
Level 3 | Auction rate securities
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1,300
Balance at the end of period	1,200	1,300
Level 3 | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	900
Balance at the end of period	3,400	900
Level 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	1,500	2,300
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(900)	(300)
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(500)	(300)
Purchases	1,100	300
Sales	(4,500)	(1,800)
Issuances	3,600	500
Settlements	(5,600)	0
Transfers into Level 3	2,300	700
Transfers out of Level 3	(1,100)	(300)
Foreign currency translation	0	0
Balance at the end of period	22,600	1,500
Level 3 | Financial assets at fair value held for trading | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	26,200
Level 3 | 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	100	0
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income		0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period		0
Purchases		0
Sales		0
Issuances		0
Settlements		0
Transfers into Level 3		100
Transfers out of Level 3		0
Foreign currency translation		0
Balance at the end of period		100
Level 3 | 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	500	600
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(200)	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(100)	0
Purchases	600	300
Sales	(800)	(600)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	100	400
Transfers out of Level 3	0	0
Foreign currency translation	0	0
Balance at the end of period	1,300	500
Level 3 | Financial assets at fair value held for trading | Corporate and municipal bonds | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	1,100
Level 3 | 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	600	1,400
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(700)	(100)
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(400)	(100)
Purchases	100	0
Sales	(2,700)	(1,100)
Issuances	3,600	500
Settlements	(5,600)	0
Transfers into Level 3	2,000	0
Transfers out of Level 3	(800)	(200)
Foreign currency translation	0	0
Balance at the end of period	19,600	600
Level 3 | Financial assets at fair value held for trading | Loans | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	23,100
Level 3 | Financial assets at fair value held for trading | Equity instruments
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	100
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(100)
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0
Purchases	100
Sales	(200)
Issuances	0
Settlements	0
Transfers into Level 3	200
Transfers out of Level 3	(100)
Foreign currency translation	0
Balance at the end of period	300	100
Level 3 | Financial assets at fair value held for trading | Equity instruments | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	400
Level 3 | 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	3,700	4,200
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	200	100
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	100	100
Purchases	2,100	700
Sales	(2,200)	(1,200)
Issuances	0	100
Settlements	0	0
Transfers into Level 3	800	200
Transfers out of Level 3	(300)	(300)
Foreign currency translation	100	0
Balance at the end of period	8,400	3,700
Level 3 | Financial assets at fair value not held for trading | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	4,200
Level 3 | 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	700	900
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	300	0
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	300	0
Purchases	600	400
Sales	(400)	(400)
Issuances	0	100
Settlements	0	0
Transfers into Level 3	400	100
Transfers out of Level 3	(200)	(300)
Foreign currency translation	0	0
Balance at the end of period	2,300	700
Level 3 | Financial assets at fair value not held for trading | Loans | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	800
Level 3 | 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	1,300	1,600
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	100
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	(100)	(300)
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 period	1,200	1,300
Level 3 | Financial assets at fair value not held for trading | Auction rate securities | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	0
Level 3 | 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	800	700
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	(100)	0
Purchases	500	100
Sales	(400)	(100)
Issuances	0	0
Settlements	0	0
Transfers into Level 3	100	100
Transfers out of Level 3	0	0
Foreign currency translation	100	0
Balance at the end of period	3,100	800
Level 3 | Financial assets at fair value not held for trading | Equity instruments | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	2,100
Level 3 | Derivatives [Member]
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	1,500	1,100
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(200)	600
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(100)	300
Purchases	0	0
Sales	0	0
Issuances	1,000	400
Settlements	(800)	(700)
Transfers into Level 3	300	100
Transfers out of Level 3	(700)	0
Foreign currency translation	0	0
Balance at the end of period	2,600	1,500
Level 3 | Derivatives [Member] | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	1,400
Level 3 | Derivatives [Member] | Interest rate contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	500	500
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	0	300
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	300
Purchases	0	0
Sales	0	0
Issuances	200	0
Settlements	(300)	(200)
Transfers into Level 3	100	0
Transfers out of Level 3	(200)	(100)
Foreign currency translation	0	0
Balance at the end of period	400	500
Level 3 | Derivatives [Member] | Interest rate contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	200
Level 3 | Derivatives [Member] | Equity / index contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	700	400
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(100)	200
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	100
Purchases	0	0
Sales	0	0
Issuances	600	400
Settlements	(200)	(300)
Transfers into Level 3	100	100
Transfers out of Level 3	(300)	0
Foreign currency translation	0	0
Balance at the end of period	1,300	700
Level 3 | Derivatives [Member] | Equity / index contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	500
Level 3 | Derivatives [Member] | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Balance at the beginning of the period	300	200
Total gains / (losses) included in comprehensive income - Net gains / (losses) included in income	(100)	100
Total gains / (losses) included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	(100)
Purchases	0	0
Sales	0	0
Issuances	100	0
Settlements	(200)	(200)
Transfers into Level 3	100	0
Transfers out of Level 3	0	100
Foreign currency translation	0	0
Balance at the end of period	500	$ 300
Level 3 | Derivatives [Member] | Credit derivative contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Assets [Line Items]
Assets acquired	$ 200

FVM - Movements of level 3 in_2

FVM - Movements of level 3 instruments - Liabilities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	$ 333,381
Balance at the end of period	426,635	$ 333,381
Level 3
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	13,015
Balance at the end of period	23,638	13,015
Level 3 | Derivative financial instruments
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	1,700	2,200
Total gains / losses included in comprehensive income - Net gains / losses included in income	(400)	(800)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	100	(400)
Purchases	0	0
Sales	0	0
Issuances	2,000	1,100
Settlements	(2,000)	(900)
Transfers into Level 3	400	300
Transfers out of Level 3	(700)	(200)
Foreign currency translation	0	(100)
Balance at the end of period	5,600	1,700
Level 3 | Derivative financial instruments | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	4,500
Level 3 | Derivative financial instruments | Interest rate contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	100	300
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	(300)
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	100	100
Settlements	(100)	0
Transfers into Level 3	100	0
Transfers out of Level 3	(200)	0
Foreign currency translation	0	0
Balance at the end of period	200	100
Level 3 | Derivative financial instruments | Interest rate contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	200
Level 3 | Derivative financial instruments | Equity / index contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	1,200	1,500
Total gains / losses included in comprehensive income - Net gains / losses included in income	200	(400)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	600	(300)
Purchases	0	0
Sales	0	0
Issuances	1,200	800
Settlements	(900)	(700)
Transfers into Level 3	200	100
Transfers out of Level 3	(300)	(200)
Foreign currency translation	0	0
Balance at the end of period	3,300	1,200
Level 3 | Derivative financial instruments | Equity / index contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	1,700
Level 3 | Derivative financial instruments | Credit derivative contracts
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	300	300
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	(100)
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	100	100
Settlements	(100)	(100)
Transfers into Level 3	100	100
Transfers out of Level 3	(100)	0
Foreign currency translation	0	0
Balance at the end of period	600	300
Level 3 | Derivative financial instruments | Credit derivative contracts | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	300
Level 3 | Derivative financial instruments | Loan commitments measured at FVTPL
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	0
Total gains / losses included in comprehensive income - Net gains / losses included in income	(600)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	(500)
Purchases	0
Sales	0
Issuances	100
Settlements	(500)
Transfers into Level 3	0
Transfers out of Level 3	0
Foreign currency translation	0
Balance at the end of period	1,000	0
Level 3 | Derivative financial instruments | Loan commitments measured at FVTPL | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	2,000
Level 3 | Debt issued designated at fair value
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	10,500	14,200
Total gains / losses included in comprehensive income - Net gains / losses included in income	1,000	(2,200)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	800	(1,800)
Purchases	0	0
Sales	0	0
Issuances	3,700	4,700
Settlements	(5,100)	(3,100)
Transfers into Level 3	1,000	700
Transfers out of Level 3	(4,500)	(3,400)
Foreign currency translation	0	(300)
Balance at the end of period	15,300	10,500
Level 3 | Debt issued designated at fair value | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	8,500
Level 3 | Other financial liabilities designated at fair value
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Balance at the beginning of the period	700	800
Total gains / losses included in comprehensive income - Net gains / losses included in income	0	(100)
Total gains / losses included in comprehensive income - of which: related to Level 3 instruments held at the end of the reporting period	0	(100)
Purchases	0	0
Sales	0	0
Issuances	200	0
Settlements	(200)	(100)
Transfers into Level 3	0	0
Transfers out of Level 3	(100)	0
Foreign currency translation	0	0
Balance at the end of period	2,600	$ 700
Level 3 | Other financial liabilities designated at fair value | Credit Suisse
Disclosure Of Fair Value Measurement Of Liabilities [Line Items]
Liabilities acquired	$ 2,100

Maximum exposure to credit risk

Maximum exposure to credit risk - assets at fair value (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Credit enhancements
Notional amounts of derivatives	$ 100.1	$ 34.4
Total financial assets measured at fair value | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	335	229
Collateral
Cash collateral received	0	0
Collateralized by equity and debt instruments	68.6	34.6
Secured by real estate	0	0
Other collateral	0	0
Credit enhancements
Netting	156.6	133.5
Credit derivative contracts	0	0
Guarantees and sub-participations	0	0
Exposure to credit risk after collateral and credit enhancements	109.8	61
Total financial assets measured at fair value | Financial Assets At Fair Value [Member] | of which: Credit Suisse
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	114.2
Collateral
Collateralized by equity and debt instruments	32.9
Other collateral	0
Credit enhancements
Netting	42
Credit derivative contracts	0
Exposure to credit risk after collateral and credit enhancements	39.3
Financial assets at fair value held for trading - debt instruments | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	54.6	16.5
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	54.6	16.5
Derivatives [Member] | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	176.1	150.1
Collateral
Collateralized by equity and debt instruments	6.4	5.9
Credit enhancements
Netting	156.4	133.5
Exposure to credit risk after collateral and credit enhancements	13.3	10.7
Brokerage receivables | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	21	17.6
Collateral
Collateralized by equity and debt instruments	20.5	17.3
Credit enhancements
Exposure to credit risk after collateral and credit enhancements	0.5	0.3
Financial assets at fair value not held for trading - debt instruments | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	83.3	44.8
Collateral
Collateralized by equity and debt instruments	41.7	11.4
Other collateral	0
Credit enhancements
Netting	0.2
Credit derivative contracts	0
Exposure to credit risk after collateral and credit enhancements	41.3	33.4
Guarantees | Financial Assets At Fair Value [Member]
Maximum Exposure To Credit Risk [Line Items]
Maximum Exposure To Credit Risk	0.1	0.2
Credit enhancements
Guarantees and sub-participations	0.1	0.2
Exposure to credit risk after collateral and credit enhancements	$ 0	$ 0

FVM - Financial instruments not

FVM - Financial instruments not measured at fair value - Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Carrying amount
Cash and balances at central banks	$ 314,148	$ 169,445
Amounts due from banks	21,161	14,792
Receivables from securities financing transactions measured at amortized cost	99,039	67,814
Cash collateral receivables on derivative instruments	50,082	35,032
Loans and advances to customers	639,844	387,220
Other financial assets measured at amortized cost	65,498	53,264
Not measured at fair value
Carrying amount
Cash and balances at central banks	314,100	169,400
Amounts due from banks	21,200	14,800
Receivables from securities financing transactions measured at amortized cost	99,000	67,800
Cash collateral receivables on derivative instruments	50,100	35,000
Loans and advances to customers	633,700	374,900
Other financial assets measured at amortized cost	64,000	50,800
Not measured at fair value | Carrying amount approximates fair value
Carrying amount
Cash and balances at central banks	314,000	169,400
Amounts due from banks	19,700	14,000
Receivables from securities financing transactions measured at amortized cost	93,600	64,300
Cash collateral receivables on derivative instruments	50,100	35,000
Loans and advances to customers	196,900	134,300
Other financial assets measured at amortized cost	13,200	12,900
Not measured at fair value | Level 1
Carrying amount
Cash and balances at central banks	0	100
Amounts due from banks	0	0
Receivables from securities financing transactions measured at amortized cost	0	0
Cash collateral receivables on derivative instruments	0	0
Loans and advances to customers	0	0
Other financial assets measured at amortized cost	13,900	10,300
Not measured at fair value | Level 2
Carrying amount
Cash and balances at central banks	100	0
Amounts due from banks	1,200	700
Receivables from securities financing transactions measured at amortized cost	3,900	1,800
Cash collateral receivables on derivative instruments	0	0
Loans and advances to customers	54,500	45,900
Other financial assets measured at amortized cost	33,900	25,100
Not measured at fair value | Level 3
Carrying amount
Cash and balances at central banks	0	0
Amounts due from banks	200	0
Receivables from securities financing transactions measured at amortized cost	1,500	1,700
Cash collateral receivables on derivative instruments	0	0
Loans and advances to customers	382,200	194,700
Other financial assets measured at amortized cost	$ 2,600	$ 2,500

FVM - Financial instruments n_2

FVM - Financial instruments not measured at fair value - Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Carrying amount
Amounts due to banks	$ 70,962	$ 11,596
Payables from securities financing transactions measured at amortized cost	14,394	4,202
Cash collateral payables on derivative instruments	41,582	36,436
Customer deposits	792,029	525,051
Debt issued measured at amortized cost	237,817	114,621
Other financial liabilities measured at amortized cost excluding lease liabilities	15,300	6,200
Not measured at fair value
Carrying amount
Amounts due to banks	71,000	11,600
Payables from securities financing transactions measured at amortized cost	14,400	4,200
Cash collateral payables on derivative instruments	41,500	36,400
Customer deposits	792,900	524,800
Debt issued measured at amortized cost	241,300	113,500
Other financial liabilities measured at amortized cost excluding lease liabilities	15,200	6,200
Not measured at fair value | Carrying amount approximates fair value
Carrying amount
Amounts due to banks	62,700	8,900
Payables from securities financing transactions measured at amortized cost	8,100	3,500
Cash collateral payables on derivative instruments	41,500	36,400
Customer deposits	694,100	491,300
Debt issued measured at amortized cost	24,700	15,400
Other financial liabilities measured at amortized cost excluding lease liabilities	13,400	6,200
Not measured at fair value | Level 1
Carrying amount
Amounts due to banks	0	0
Payables from securities financing transactions measured at amortized cost	0	0
Cash collateral payables on derivative instruments	0	0
Customer deposits	0	0
Debt issued measured at amortized cost	0	0
Other financial liabilities measured at amortized cost excluding lease liabilities	0	0
Not measured at fair value | Level 2
Carrying amount
Amounts due to banks	8,300	2,700
Payables from securities financing transactions measured at amortized cost	5,900	700
Cash collateral payables on derivative instruments	0	0
Customer deposits	98,700	33,600
Debt issued measured at amortized cost	216,300	98,100
Other financial liabilities measured at amortized cost excluding lease liabilities	0	0
Not measured at fair value | Level 3
Carrying amount
Amounts due to banks	0	0
Payables from securities financing transactions measured at amortized cost	400	0
Cash collateral payables on derivative instruments	0	0
Customer deposits	0	0
Debt issued measured at amortized cost	100	0
Other financial liabilities measured at amortized cost excluding lease liabilities	$ 1,700	$ 0

Offsetting financial assets (De

Offsetting financial assets (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Netting recognized on the balance sheet
Gross assets before netting	$ 443.2	$ 327.2
Netting with gross liabilities	(108.6)	(90.4)
Net assets recognized on the balance sheet	334.6	236.8
Netting potential not recognized on the balance sheet
Financial liabilities	(166.2)	(136.3)
Collateral received	(147.4)	(84.1)
Assets after consideration of netting potential	21	16.4
Assets not subject to netting arrangements
Assets recognized on the balance sheet	94.6	76
Total assets
Total assets, after consideration of further netting potential	115.6	92.3
Total assets recognized on the balance sheet	429.2	312.8
Receivables from securities financing transactions measured at amortized cost
Netting recognized on the balance sheet
Gross assets before netting	93.7	60.8
Netting with gross liabilities	(12.7)	(11.1)
Net assets recognized on the balance sheet	80.9	49.6
Netting potential not recognized on the balance sheet
Financial liabilities	(1.5)	(3)
Collateral received	(79.2)	(46.4)
Assets after consideration of netting potential	0.3	0.3
Assets not subject to netting arrangements
Assets recognized on the balance sheet	18.1	18.2
Total assets
Total assets, after consideration of further netting potential	18.4	18.5
Total assets recognized on the balance sheet	99	67.8
Derivatives [Member]
Netting recognized on the balance sheet
Gross assets before netting	172.4	147.4
Netting with gross liabilities	(3.3)	(2.5)
Net assets recognized on the balance sheet	169.1	144.9
Netting potential not recognized on the balance sheet
Financial liabilities	(133)	(110.9)
Collateral received	(29.8)	(28.5)
Assets after consideration of netting potential	6.3	5.5
Assets not subject to netting arrangements
Assets recognized on the balance sheet	7	5.2
Total assets
Total assets, after consideration of further netting potential	13.3	10.7
Total assets recognized on the balance sheet	176.1	150.1
Cash collateral receivables on derivative instruments
Netting recognized on the balance sheet
Gross assets before netting	47.3	33.5
Netting with gross liabilities	0	0
Net assets recognized on the balance sheet	47.3	33.5
Netting potential not recognized on the balance sheet
Financial liabilities	(29.7)	(20.9)
Collateral received	(3.2)	(1.9)
Assets after consideration of netting potential	14.5	10.6
Assets not subject to netting arrangements
Assets recognized on the balance sheet	2.7	1.5
Total assets
Total assets, after consideration of further netting potential	17.2	12.1
Total assets recognized on the balance sheet	50.1	35
Financial assets at fair value not held for trading
Netting recognized on the balance sheet
Gross assets before netting	129.8	85.6
Netting with gross liabilities	(92.6)	(76.8)
Net assets recognized on the balance sheet	37.2	8.7
Netting potential not recognized on the balance sheet
Financial liabilities	(2)	(1.5)
Collateral received	(35.3)	(7.3)
Assets after consideration of netting potential	0	0
Assets not subject to netting arrangements
Assets recognized on the balance sheet	66.7	51
Total assets
Total assets, after consideration of further netting potential	66.7	51
Total assets recognized on the balance sheet	104	59.8
of which: reverse repurchase agreements
Netting recognized on the balance sheet
Gross assets before netting	128.7	84.4
Netting with gross liabilities	(92.6)	(76.8)
Net assets recognized on the balance sheet	36.1	7.6
Netting potential not recognized on the balance sheet
Financial liabilities	(2)	(1.5)
Collateral received	(34.1)	(6.1)
Assets after consideration of netting potential	0	0
Assets not subject to netting arrangements
Assets recognized on the balance sheet	0.8	0.1
Total assets
Total assets, after consideration of further netting potential	0.8	0.1
Total assets recognized on the balance sheet	$ 36.9	$ 7.7

Offsetting financial liabilitie

Offsetting financial liabilities (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Netting recognized on the balance sheet
Gross liabilities before netting	$ 352.1	$ 291.7
Netting with gross assets	(108.6)	(90.4)
Net liabilities recognized on the balance sheet	243.5	201.3
Netting potential not recognized on the balance sheet
Financial assets	(159.7)	(135.3)
Collateral pledged	(54.8)	(42.3)
Liabilities after consideration of netting potential	29.1	23.7
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	34.2	24.5
Total liabilities
Total liabilities after consideration of netting potential	63.2	48.1
Total liabilities recognized on the balance sheet	277.7	225.8
Payables from securities financing transactions
Netting recognized on the balance sheet
Gross liabilities before netting	25.2	14.1
Netting with gross assets	(12.5)	(11.1)
Net liabilities recognized on the balance sheet	12.6	3
Netting potential not recognized on the balance sheet
Financial assets	(0.8)	(1.3)
Collateral pledged	(11.8)	(1.8)
Liabilities after consideration of netting potential	0	0
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	1.8	1.2
Total liabilities
Total liabilities after consideration of netting potential	1.8	1.2
Total liabilities recognized on the balance sheet	14.4	4.2
Derivative financial instruments
Netting recognized on the balance sheet
Gross liabilities before netting	185.1	150.3
Netting with gross assets	(3.3)	(2.5)
Net liabilities recognized on the balance sheet	181.8	147.8
Netting potential not recognized on the balance sheet
Financial assets	(133)	(110.9)
Collateral pledged	(35)	(26.2)
Liabilities after consideration of netting potential	13.9	10.7
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	10.4	7.1
Total liabilities
Total liabilities after consideration of netting potential	24.3	17.8
Total liabilities recognized on the balance sheet	192.2	154.9
Cash collateral payables on derivative instruments
Netting recognized on the balance sheet
Gross liabilities before netting	39.8	34.9
Netting with gross assets	0	0
Net liabilities recognized on the balance sheet	39.7	34.9
Netting potential not recognized on the balance sheet
Financial assets	(23.2)	(20)
Collateral pledged	(3.2)	(1.9)
Liabilities after consideration of netting potential	13.3	13
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	1.8	1.6
Total liabilities
Total liabilities after consideration of netting potential	15.2	14.5
Total liabilities recognized on the balance sheet	41.6	36.4
Other financial liabilities designated at fair value
Netting recognized on the balance sheet
Gross liabilities before netting	102.1	92.5
Netting with gross assets	(92.8)	(76.9)
Net liabilities recognized on the balance sheet	9.3	15.6
Netting potential not recognized on the balance sheet
Financial assets	(2.7)	(3.2)
Collateral pledged	(4.8)	(12.4)
Liabilities after consideration of netting potential	1.8	0
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	20.2	14.6
Total liabilities
Total liabilities after consideration of netting potential	22	14.6
Total liabilities recognized on the balance sheet	29.5	30.2
of which: repurchase agreements
Netting recognized on the balance sheet
Gross liabilities before netting	100	92.1
Netting with gross assets	(92.8)	(76.9)
Net liabilities recognized on the balance sheet	7.2	15.3
Netting potential not recognized on the balance sheet
Financial assets	(2.7)	(3.2)
Collateral pledged	(4.5)	(12.1)
Liabilities after consideration of netting potential	0	0
Liabilities not subject to netting arrangements
Liabilities recognized on the balance sheet	0.2	0.1
Total liabilities
Total liabilities after consideration of netting potential	0.2	0.1
Total liabilities recognized on the balance sheet	$ 7.4	$ 15.3

Restricted financial assets (De

Restricted financial assets (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Financial assets pledged as collateral
Cash and balances at central banks	$ 1,041
Financial assets at fair value held for trading	83,689	$ 57,377
of which: assets pledged as collateral which may be sold or repledged by counterparties	51,263	36,742
Loans and advances to customers	127,362	15,195
Financial assets at fair value not held for trading	3,099	1,509
of which: assets pledged as collateral that may be sold or repledged by counterparties	2,110	1,220
Debt securities classified as Other financial assets measured at amortized cost	7,561	3,432
of which: assets pledged as collateral that may be sold or repledged by counterparties	6,299	2,685
Total financial assets pledged as collateral	222,752	77,513
Other restricted financial assets
Amounts due from banks	2,874	3,689
Financial assets at fair value held for trading	184	162
Cash collateral receivables on derivative instruments	9,539	5,155
Loans and advances to customers	275	1,127
Other financial assets measured at amortized cost	4,724	815
Financial assets at fair value not held for trading	18,229	14,478
Financial assets measured at fair value through other comprehensive income	1,846	1,842
Other	354	44
Total other restricted financial assets	38,025	27,312
Total financial assets pledged and other restricted financial assets	260,777	104,825
Assets placed with central banks related to undrawn credit lines and for payment, clearing and settlement purposes	9,800	5,900
Assets placed with central banks to meet local statutory minimum reserve requirement.	7,100	$ 4,400
of which: Credit Suisse
Other restricted financial assets
Total financial assets pledged and other restricted financial assets	$ 114,611

Restricted financial assets (Na

Restricted financial assets (Narrative) (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Restricted Financial Assets [Line Items]
Pledged mortgage loans that could be withdrawn or used for future liabilities or covered bond issuances without breaching existing collateral requirements	$ 7.5	$ 3.1
Existing liabilities in relation to the Emergency Liquidity Assistance facility against the SNB	44.9	0
Liabilities against Swiss central mortgage institutions and US Federal Home Loan Banks, and for existing covered bond issuances	45.5	9
Assets placed with central banks to meet local statutory minimum reserve requirement.	$ 7.1	$ 4.4

Transferred financial assets _3

Transferred financial assets that are not derecognized in their entirety (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Carrying amount of transferred assets	$ 59,672	$ 40,647
Carrying amount of associated liabilities recognized on balance sheet	31,669	19,822
of which: Credit Suisse
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Carrying amount of transferred assets	6,739
Carrying amount of associated liabilities recognized on balance sheet	391
Financial assets at fair value held for trading that may be sold or repledged by counterparties
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Carrying amount of transferred assets	51,263	36,742
Carrying amount of associated liabilities recognized on balance sheet	23,765	16,470
Financial assets at fair value not held for trading that may be sold or repledged by counterparties
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Carrying amount of transferred assets	2,110	1,220
Carrying amount of associated liabilities recognized on balance sheet	1,976	1,050
Debt securities classified as Other financial assets measured at amortized cost that may be sold or repledged by counterparties
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Carrying amount of transferred assets	6,299	2,685
Carrying amount of associated liabilities recognized on balance sheet	$ 5,928	$ 2,302

Transferred financial assets _4

Transferred financial assets that are not derecognized in their entirety (Narrative) (Detail)	Dec. 31, 2023
Disclosure Of Financial Assets Transferred During Period Which Do Not Qualify For Derecognition [Line Items]
Minimum haircut applied to transferred assets in securities lending and repurchase agreements	0%
Maximum haircut applied to transferred assets in securities lending and repurchase agreements	15%

Off-balance sheet assets rece_2

Off-balance sheet assets received (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Off Balance Sheet Assets Received [Line Items]
Fair value of assets received that can be sold or repledged	$ 576,596	$ 434,023
Thereof sold or repledged	382,313	331,805
Off balance sheet securities placed with central banks related to undrawn credit lines and for payment clearing and settlement purposes	29,100	$ 9,900
of which: Credit Suisse
Off Balance Sheet Assets Received [Line Items]
Fair value of assets received that can be sold or repledged	88,068
Thereof sold or repledged	$ 26,697

Maturity analysis of assets a_2

Maturity analysis of assets and liabilities (Detail] - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Total financial assets measured at amortized cost	$ 1,189,773	$ 727,568
Amounts due from banks	21,161	14,792
Loans and advances to customers	639,844	387,220
Other financial assets measured at amortized cost	65,498	53,264
Total financial assets measured at fair value through profit or loss	470,773	335,347
Financial assets at fair value not held for trading	104,018	59,796
Financial assets measured at fair value through other comprehensive income	2,233	2,239
Total non-financial assets	54,500	39,200
Total assets	1,717,246	1,104,364	$ 1,117,182
Liabilities
Total financial liabilities measured at amortized cost	1,177,633	701,481
Customer deposits	792,029	525,051
Debt issued measured at amortized cost	237,817	114,621
Total financial liabilities measured at fair value through profit or loss	426,635	333,381
Debt issued designated at fair value	128,289	73,638
Total non-financial liabilities	26,300	12,300
Total liabilities	1,630,607	1,047,146
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	91,600	40,000
Guarantees	46,300	22,400
Forward starting reverse repurchase and securities borrowing agreements	18,400	3,800
Irrevocable committed prolongation of existing loans	4,600	4,700
Total	161,000	70,900
of which: Credit Suisse
Assets
Other financial assets measured at amortized cost	11,378
Total assets	583,197
Liabilities
Customer deposits	236,049
Total financial liabilities measured at fair value through profit or loss	98,519
Debt issued designated at fair value	37,200
Total liabilities	475,670
Guarantees, commitments and forward starting transactions
Total	70,100
Due within 1 month
Assets
Total financial assets measured at amortized cost	645,900	422,600
Amounts due from banks	18,800	13,400
Loans and advances to customers	177,900	139,400
Other financial assets measured at amortized cost	12,300	8,700
Total financial assets measured at fair value through profit or loss	417,600	300,200
Financial assets at fair value not held for trading	50,800	24,600
Financial assets measured at fair value through other comprehensive income	100	300
Total non-financial assets	12,300	7,600
Total assets	1,075,900	730,700
Liabilities
Total financial liabilities measured at amortized cost	748,700	521,900
Customer deposits	618,200	463,000
Debt issued measured at amortized cost	10,100	6,600
Total financial liabilities measured at fair value through profit or loss	308,300	265,900
Debt issued designated at fair value	17,000	9,300
Total non-financial liabilities	17,800	7,200
Total liabilities	1,074,700	795,100
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	90,700	39,300
Guarantees	46,300	22,400
Forward starting reverse repurchase and securities borrowing agreements	18,400	3,800
Irrevocable committed prolongation of existing loans	2,500	4,700
Total	157,900	70,100
Due within 1 month | of which: Credit Suisse
Assets
Total assets	346,400
Liabilities
Total liabilities	328,000
Guarantees, commitments and forward starting transactions
Total	70,100
Due between 1 and 3 months
Assets
Total financial assets measured at amortized cost	57,700	28,700
Amounts due from banks	1,100	700
Loans and advances to customers	34,000	16,300
Other financial assets measured at amortized cost	1,800	4,200
Total financial assets measured at fair value through profit or loss	12,200	10,000
Financial assets at fair value not held for trading	12,200	10,000
Financial assets measured at fair value through other comprehensive income	1,100	900
Total assets	71,000	39,600
Liabilities
Total financial liabilities measured at amortized cost	97,000	40,000
Customer deposits	76,500	28,300
Debt issued measured at amortized cost	14,700	8,800
Total financial liabilities measured at fair value through profit or loss	14,000	13,800
Debt issued designated at fair value	13,800	12,300
Total non-financial liabilities	4,500	3,000
Total liabilities	115,600	56,700
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	500	300
Irrevocable committed prolongation of existing loans	800
Total	1,400	300
Due between 1 and 3 months | of which: Credit Suisse
Assets
Total assets	37,500
Liabilities
Total liabilities	34,300
Guarantees, commitments and forward starting transactions
Total	0
Due between 3 and 12 months
Assets
Total financial assets measured at amortized cost	88,300	34,400
Amounts due from banks	800	600
Loans and advances to customers	77,500	28,300
Other financial assets measured at amortized cost	5,200	2,800
Total financial assets measured at fair value through profit or loss	9,900	7,800
Financial assets at fair value not held for trading	9,900	7,800
Financial assets measured at fair value through other comprehensive income	1,000	900
Total non-financial assets	200	200
Total assets	99,300	43,400
Liabilities
Total financial liabilities measured at amortized cost	115,100	49,600
Customer deposits	72,700	23,800
Debt issued measured at amortized cost	34,300	23,300
Total financial liabilities measured at fair value through profit or loss	30,000	16,300
Debt issued designated at fair value	28,800	15,900
Total non-financial liabilities	200
Total liabilities	145,300	65,900
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	400	400
Irrevocable committed prolongation of existing loans	1,300
Total	1,800	400
Due between 3 and 12 months | of which: Credit Suisse
Assets
Total assets	50,200
Liabilities
Total liabilities	40,600
Guarantees, commitments and forward starting transactions
Total	0
Due between 1 and 2 years
Assets
Total financial assets measured at amortized cost	125,600	78,700
Amounts due from banks	0	0
Loans and advances to customers	118,500	74,900
Other financial assets measured at amortized cost	6,300	3,000
Total financial assets measured at fair value through profit or loss	8,400	3,600
Financial assets at fair value not held for trading	8,400	3,600
Financial assets measured at fair value through other comprehensive income	100	100
Total non-financial assets	1,300
Total assets	135,300	82,400
Liabilities
Total financial liabilities measured at amortized cost	49,800	20,500
Customer deposits	15,900	7,500
Debt issued measured at amortized cost	31,100	11,900
Total financial liabilities measured at fair value through profit or loss	31,200	19,600
Debt issued designated at fair value	28,800	19,300
Total non-financial liabilities	300
Total liabilities	81,300	40,100
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	0	0
Irrevocable committed prolongation of existing loans	0
Total	0	0
Due between 1 and 2 years | of which: Credit Suisse
Assets
Total assets	32,700
Liabilities
Total liabilities	19,900
Guarantees, commitments and forward starting transactions
Total	0
Due between 2 and 5 years
Assets
Total financial assets measured at amortized cost	136,800	70,400
Amounts due from banks	300	0
Loans and advances to customers	116,600	55,500
Other financial assets measured at amortized cost	19,800	14,800
Total financial assets measured at fair value through profit or loss	12,600	9,900
Financial assets at fair value not held for trading	12,600	9,900
Financial assets measured at fair value through other comprehensive income	0	0
Total non-financial assets	1,200	2,000
Total assets	150,600	82,300
Liabilities
Total financial liabilities measured at amortized cost	88,700	35,100
Customer deposits	8,400	2,200
Debt issued measured at amortized cost	73,200	31,100
Total financial liabilities measured at fair value through profit or loss	18,000	7,300
Debt issued designated at fair value	15,900	6,900
Total non-financial liabilities	700
Total liabilities	107,400	42,400
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	0
Irrevocable committed prolongation of existing loans	0
Total	0
Due between 2 and 5 years | of which: Credit Suisse
Assets
Total assets	59,900
Liabilities
Total liabilities	27,300
Guarantees, commitments and forward starting transactions
Total	0
Due after 5 years
Assets
Total financial assets measured at amortized cost	135,500	92,700
Amounts due from banks	200	100
Loans and advances to customers	115,300	72,900
Other financial assets measured at amortized cost	20,000	19,700
Total financial assets measured at fair value through profit or loss	5,300	2,000
Financial assets at fair value not held for trading	5,300	2,000
Financial assets measured at fair value through other comprehensive income	0	0
Total non-financial assets	1,100	400
Total assets	142,000	95,100
Liabilities
Total financial liabilities measured at amortized cost	66,400	23,400
Customer deposits	300	300
Debt issued measured at amortized cost	62,500	21,900
Total financial liabilities measured at fair value through profit or loss	25,200	10,500
Debt issued designated at fair value	24,000	10,000
Total non-financial liabilities	400
Total liabilities	91,900	33,900
Due after 5 years | of which: Credit Suisse
Assets
Total assets	44,200
Liabilities
Total liabilities	25,200
Perpetual / Not applicable
Assets
Total financial assets measured at fair value through profit or loss	4,800	1,900
Financial assets at fair value not held for trading	4,800	1,900
Total non-financial assets	38,400	29,000
Total assets	43,200	31,000
Liabilities
Total financial liabilities measured at amortized cost	12,000	11,100
Debt issued measured at amortized cost	12,000	11,100
Total non-financial liabilities	2,500	2,100
Total liabilities	14,500	13,200
Perpetual / Not applicable | of which: Credit Suisse
Assets
Total assets	12,200
Liabilities
Total liabilities	300
of which: non-subordinated
Liabilities
Debt issued measured at amortized cost	220,200	98,600
of which: non-subordinated | Due within 1 month
Liabilities
Debt issued measured at amortized cost	7,600	4,600
of which: non-subordinated | Due between 1 and 3 months
Liabilities
Debt issued measured at amortized cost	14,700	8,800
of which: non-subordinated | Due between 3 and 12 months
Liabilities
Debt issued measured at amortized cost	31,800	23,300
of which: non-subordinated | Due between 1 and 2 years
Liabilities
Debt issued measured at amortized cost	30,800	9,500
of which: non-subordinated | Due between 2 and 5 years
Liabilities
Debt issued measured at amortized cost	72,800	30,600
of which: non-subordinated | Due after 5 years
Liabilities
Debt issued measured at amortized cost	62,500	21,900
of which: subordinated
Liabilities
Debt issued measured at amortized cost	17,600	16,000
of which: subordinated | Due within 1 month
Liabilities
Debt issued measured at amortized cost	2,500	2,000
of which: subordinated | Due between 3 and 12 months
Liabilities
Debt issued measured at amortized cost	2,500
of which: subordinated | Due between 1 and 2 years
Liabilities
Debt issued measured at amortized cost	300	2,400
of which: subordinated | Due between 2 and 5 years
Liabilities
Debt issued measured at amortized cost	300	500
of which: subordinated | Due after 5 years
Liabilities
Debt issued measured at amortized cost	0
of which: subordinated | Perpetual / Not applicable
Liabilities
Debt issued measured at amortized cost	$ 12,000	$ 11,100

Maturity analysis of financia_2

Maturity analysis of financial liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Financial liabilities recognized on balance sheet
Amounts due to banks	$ 71,700	$ 11,700
Payables from securities financing transactions	14,800	4,400
Cash collateral payables on derivative instruments	41,600	36,400
Customer deposits	800,400	526,900
Debt issued measured at amortized cost	279,300	133,400
Other financial liabilities measured at amortized cost	17,400	8,500
of which: lease liabilities	6,500	3,800
Total financial liabilities measured at amortized cost	1,225,200	721,200
Financial liabilities at fair value held for trading	34,159	29,515
Derivative financial instruments	192,181	154,906
Brokerage payables designated at fair value	42,500	45,100
Debt issued designated at fair value	149,800	83,400
Other financial liabilities designated at fair value	29,700	30,600
Total financial liabilities measured at fair value through profit or loss	448,300	343,500
Total financial liabilities	1,673,500	1,064,700
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	91,600	40,000
Guarantees	46,300	22,400
Forward starting reverse repurchase and securities borrowing agreements	18,400	3,800
Irrevocable committed prolongation of existing loans	4,600	4,700
Total	161,000	70,900
Trading portfolio liabilities contractually due within one month	32,300	27,800
Trading portfolio liabilities contractually due between one month and one year	1,800	1,700
Trading portfolio liabilities contractually due between 1 and 5 years	0	0
Loan commitments and forward starting reverse repurchase agreements classified as derivatives	1,195	46
Notional amounts of derivatives	100,100	34,400
of which: Credit Suisse
Financial liabilities recognized on balance sheet
Derivative financial instruments	53,500
Total financial liabilities	474,100
Guarantees, commitments and forward starting transactions
Total	70,100
Due within 1 month
Financial liabilities recognized on balance sheet
Amounts due to banks	60,200	6,300
Payables from securities financing transactions	5,000	3,300
Cash collateral payables on derivative instruments	41,600	36,400
Customer deposits	619,500	463,100
Debt issued measured at amortized cost	10,700	6,800
Other financial liabilities measured at amortized cost	7,700	4,700
of which: lease liabilities	100	100
Total financial liabilities measured at amortized cost	744,700	520,700
Financial liabilities at fair value held for trading	34,200	29,500
Derivative financial instruments	192,200	154,900
Brokerage payables designated at fair value	42,500	45,100
Debt issued designated at fair value	17,100	9,400
Other financial liabilities designated at fair value	22,200	27,100
Total financial liabilities measured at fair value through profit or loss	308,200	266,000
Total financial liabilities	1,052,900	786,800
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	90,700	39,300
Guarantees	46,300	22,400
Forward starting reverse repurchase and securities borrowing agreements	18,400	3,800
Irrevocable committed prolongation of existing loans	2,500	4,700
Total	157,900	70,100
Due within 1 month | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	315,900
Guarantees, commitments and forward starting transactions
Total	70,100
Due between 1 and 3 months
Financial liabilities recognized on balance sheet
Amounts due to banks	2,700	2,600
Payables from securities financing transactions	3,200	300
Customer deposits	77,600	28,500
Debt issued measured at amortized cost	16,400	9,400
Other financial liabilities measured at amortized cost	200	100
of which: lease liabilities	100	100
Total financial liabilities measured at amortized cost	100,200	40,900
Debt issued designated at fair value	14,300	12,400
Other financial liabilities designated at fair value	200	1,400
Total financial liabilities measured at fair value through profit or loss	14,600	13,800
Total financial liabilities	114,800	54,700
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	500	300
Irrevocable committed prolongation of existing loans	800
Total	1,400	300
Due between 1 and 3 months | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	33,900
Guarantees, commitments and forward starting transactions
Total	0
Due between 3 and 12 months
Financial liabilities recognized on balance sheet
Amounts due to banks	4,200	1,900
Payables from securities financing transactions	3,700	400
Customer deposits	75,400	24,500
Debt issued measured at amortized cost	38,800	24,800
Other financial liabilities measured at amortized cost	900	500
of which: lease liabilities	800	500
Total financial liabilities measured at amortized cost	123,100	52,100
Debt issued designated at fair value	30,100	16,100
Other financial liabilities designated at fair value	1,200	400
Total financial liabilities measured at fair value through profit or loss	31,300	16,400
Total financial liabilities	154,300	68,600
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	400	400
Irrevocable committed prolongation of existing loans	1,300
Total	1,800	400
Due between 3 and 12 months | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	42,800
Guarantees, commitments and forward starting transactions
Total	0
Due between 1 and 2 years
Financial liabilities recognized on balance sheet
Amounts due to banks	300	300
Payables from securities financing transactions	2,000	300
Customer deposits	17,600	8,000
Debt issued measured at amortized cost	37,400	14,400
Other financial liabilities measured at amortized cost	1,200	500
of which: lease liabilities	900	500
Total financial liabilities measured at amortized cost	58,500	23,600
Debt issued designated at fair value	32,100	19,700
Other financial liabilities designated at fair value	2,300	400
Total financial liabilities measured at fair value through profit or loss	34,500	20,000
Total financial liabilities	93,000	43,600
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	0	0
Irrevocable committed prolongation of existing loans	0
Total	0	0
Due between 1 and 2 years | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	21,700
Guarantees, commitments and forward starting transactions
Total	0
Due between 2 and 5 years
Financial liabilities recognized on balance sheet
Amounts due to banks	4,400	600
Payables from securities financing transactions	900
Customer deposits	9,900	2,400
Debt issued measured at amortized cost	87,800	37,900
Other financial liabilities measured at amortized cost	3,300	1,300
of which: lease liabilities	2,100	1,300
Total financial liabilities measured at amortized cost	106,300	42,300
Debt issued designated at fair value	17,400	7,100
Other financial liabilities designated at fair value	2,100	500
Total financial liabilities measured at fair value through profit or loss	19,500	7,600
Total financial liabilities	125,700	49,800
Guarantees, commitments and forward starting transactions
Irrevocable loan commitments	0
Irrevocable committed prolongation of existing loans	0
Total	0
Due between 2 and 5 years | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	30,800
Guarantees, commitments and forward starting transactions
Total	0
Due after 5 years
Financial liabilities recognized on balance sheet
Amounts due to banks	0	0
Payables from securities financing transactions	0
Customer deposits	300	300
Debt issued measured at amortized cost	75,600	28,000
Other financial liabilities measured at amortized cost	4,200	1,400
of which: lease liabilities	2,500	1,400
Total financial liabilities measured at amortized cost	80,000	29,700
Debt issued designated at fair value	38,700	18,800
Other financial liabilities designated at fair value	1,600	800
Total financial liabilities measured at fair value through profit or loss	40,300	19,600
Total financial liabilities	120,400	49,300
Due after 5 years | of which: Credit Suisse
Financial liabilities recognized on balance sheet
Total financial liabilities	29,000
Perpetual / Not applicable
Financial liabilities recognized on balance sheet
Debt issued measured at amortized cost	12,400	11,900
Total financial liabilities measured at amortized cost	12,400	11,900
Total financial liabilities	$ 12,400	$ 11,900

Interest rate benchmark refor_2

Interest rate benchmark reform (Narrative) (Detail) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Maximum Exposure To Interest Rate Benchmark Reform [Line Items]
US mortgages linked to USD LIBOR		$ 9
JPY and USD benchmark bonds resettable to LIBOR	$ 4
Credit Suisse
Disclosure Of Maximum Exposure To Interest Rate Benchmark Reform [Line Items]
Corporate loans subject to interest rate benchmark reform	$ 1

Interest rate benchmark refor_3

Interest rate benchmark reform (Detail) $ in Millions	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Disclosure Of Maximum Exposure Of Financial Instruments To Interest Rate Benchmark Reform [Line Items]
Total off-balance sheet irrevocable loan commitments	$ 91,600	$ 40,000
Interest rate benchmark reform
Disclosure Of Maximum Exposure Of Financial Instruments To Interest Rate Benchmark Reform [Line Items]
Carrying value of loans related to revolving multi-currency credit lines where IBOR transition efforts are complete, except for USD LIBOR		$ 1,000
Number Of Contracts With Last USD LIBOR Fixing Before Contractual Maturity Date		2,000
Multicurrency loan commitments that have only USD LIBOR exposure remaining		$ 3,000
LIBOR benchmark rate USD | Interest rate benchmark reform
Disclosure Of Maximum Exposure Of Financial Instruments To Interest Rate Benchmark Reform [Line Items]
Total carrying value of non-derivative financial assets		14,269
Total carrying value of non-derivative financial liabilities		$ 1,138
Trade count of derivative financial instruments		32,006
Total off-balance sheet irrevocable loan commitments		$ 4,606

Hedge accounting (Detail 1)

Hedge accounting (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair value hedges | Interest rate risk
Disclosure Of Hedge Accounting [Line Items]
Notional amount	$ 246,909	$ 92,415
Derivative financial assets	3	0
Derivative financial liabilities	51	0
Changes in fair value of hedging instruments	2,275	(5,195)
Changes in fair value of hedged items	(2,311)	5,169
Hedge ineffectiveness recognized in the income statement	(36)	(27)
Fair value hedges | Foreign exchange risk
Disclosure Of Hedge Accounting [Line Items]
Notional amount	33,877	20,566
Derivative financial assets	468	845
Derivative financial liabilities	291	3
Changes in fair value of hedging instruments	132	(1,088)
Changes in fair value of hedged items	(151)	1,105
Hedge ineffectiveness recognized in the income statement	(19)	18
Cash flow hedges | Interest rate risk
Disclosure Of Hedge Accounting [Line Items]
Notional amount	97,834	75,304
Derivative financial assets	3	2
Derivative financial liabilities	0	5
Changes in fair value of hedging instruments	(337)	(5,813)
Changes in fair value of hedged items	358	5,760
Hedge ineffectiveness recognized in the income statement	21	(53)
Hedges of net investments in foreign operations | Foreign exchange risk
Disclosure Of Hedge Accounting [Line Items]
Notional amount	38,668	14,009
Derivative financial assets	17	7
Derivative financial liabilities	1,270	529
Changes in fair value of hedging instruments	(2,317)	336
Changes in fair value of hedged items	2,320	(337)
Hedge ineffectiveness recognized in the income statement	$ 3	$ (1)

Hedge accounting (Detail 2)

Hedge accounting (Detail 2) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt issued measured at amortized cost
Fair value hedges of FX risk	$ 12,000
Interest rate risk
Loans and advances to customers
Carrying amount of designated loans	61,107	$ 14,270
of which: accumulated amount of fair value hedge adjustment	457	(1,249)
of which: accumulated amount of fair value hedge adjustment, subject to amortization attributable to the portion of the portfolio that ceased to be part of hedge accounting	(179)	(51)
Other financial assets measured at amortized cost - debt securities
Carrying amount of designated debt securities	6,333	4,577
of which: accumulated amount of fair value hedge adjustment	(109)	(180)
Customer deposits
Carrying amount of customer deposits	8,972
of which: accumulated amount of fair value hedge adjustment	50
Debt issued measured at amortized cost
Carrying amount of designated debt issued	156,507	68,529
of which: accumulated amount of fair value hedge adjustment	(2,976)	(6,057)
Foreign exchange risk
Debt issued measured at amortized cost
Carrying amount of designated debt issued	$ 22,329	$ 20,566

Hedge accounting (Detail 3)

Hedge accounting (Detail 3) - USD ($) $ in Billions	Dec. 31, 2023	Dec. 31, 2022
Interest rate swaps
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	$ 247	$ 92
Interest rate swaps | Due within 1 month
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	1	0
Interest rate swaps | Due between 1 and 3 months
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	7	4
Interest rate swaps | Due between 3 and 12 months
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	29	10
Interest rate swaps | Due between 1 and 5 years
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	142	53
Interest rate swaps | Due after 5 years
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	68	26
Cross-currency swaps
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	34	21
Cross-currency swaps | Due within 1 month
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	1	0
Cross-currency swaps | Due between 1 and 3 months
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	2	1
Cross-currency swaps | Due between 3 and 12 months
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	2	2
Cross-currency swaps | Due between 1 and 5 years
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	22	12
Cross-currency swaps | Due after 5 years
Profile Of The Timing Of The Nominal Amount Of The Hedging Instrument [Line Items]
Hedging instruments	$ 7	$ 5

Hedge accounting (Detail 4)

Hedge accounting (Detail 4) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Cash Flow Hedge Reserves [Line Items]
Amounts related to hedge relationships for which hedge accounting continues to be applied	$ (2,319)	$ (4,692)
Amounts related to hedge relationships for which hedge accounting is no longer applied	(1,487)	(540)
Total other comprehensive income recognized directly in equity related to cash flow hedges, on a pre-tax basis	$ (3,806)	$ (5,232)

Hedge accounting (Detail 5)

Hedge accounting (Detail 5) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Foreign Currency Basis Spreads Reserves [Line Items]
Amounts related to hedge relationships for which hedge accounting continues to be applied	$ (2,063)	$ 284
Amounts related to hedge relationships for which hedge accounting is no longer applied	266	266
Total other comprehensive income recognized directly in equity related to hedging instruments designated as net investment hedges, on a pre-tax basis	$ (1,798)	$ 550

Hedge accounting (Detail 6)

Hedge accounting (Detail 6) - Interest rate risk - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair value hedges
Nominal And Carrying Amount Of Cash Flow Hedges Of Forecast Transactions [Line Items]
Derivative financial assets	$ 3	$ 0
Derivative financial liabilities	51	0
Fair value hedges | Interest rate benchmark reform exceptions effect on cash flow hedges
Nominal And Carrying Amount Of Cash Flow Hedges Of Forecast Transactions [Line Items]
Nominal amount		20,383
Derivative financial assets		0
Derivative financial liabilities		0
Cash flow hedges
Nominal And Carrying Amount Of Cash Flow Hedges Of Forecast Transactions [Line Items]
Derivative financial assets	3	2
Derivative financial liabilities	$ 0	5
Cash flow hedges | Interest rate benchmark reform exceptions effect on cash flow hedges
Nominal And Carrying Amount Of Cash Flow Hedges Of Forecast Transactions [Line Items]
Nominal amount		2,179
Derivative financial assets		0
Derivative financial liabilities		$ 0

Post-employment benefit plans_2

Post-employment benefit plans (Narrative) (Detail)	12 Months Ended
	Dec. 31, 2023 CHF (SFr) yr	Dec. 31, 2023 USD ($) yr	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	May 31, 2023 USD ($)
Disclosure Of Defined Benefit Plans [Line Items]
Total employer contributions to defined contribution plans		$ 514,000,000	$ 357,000,000	$ 363,000,000
Major Defined Benefit Plans [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Surplus / (deficit)		$ 9,860,000,000	7,834,000,000
Swiss Defined Benefit Plans [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Normal retirement age | yr	65	65
Minimum age required to draw early retirement benefits | yr	58	58
Maximum retirement age starting 2019 | yr	70	70
Maximum period to restore full funding in case an underfunded situation occurs	10 years	10 years
Maximum obligation from the employer on the additional contributions required if a Swiss pension plan were to become significantly underfunded	50%	50%
Surplus / (deficit)		$ 9,482,000,000	$ 7,848,000,000
Profit / (loss) before tax related to plan changes	SFr 207,000,000	$ 245,000,000
UBS Swiss defined benefit plan
Disclosure Of Defined Benefit Plans [Line Items]
Technical funding ratio	119.20%	119.20%	119%
Technical interest rate	0.50%	0.50%	0.50%
Surplus / (deficit)		$ 6,332,000,000	$ 7,848,000,000
UBS Swiss defined benefit plan | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		$ 549,000,000
UBS Swiss defined benefit plan | Maximum
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions on contributory base salary (as a percent)	27.50%	27.50%
Employer contributions on contributory variable compensation (as a percent)	9%	9%
Employee contributions on contributory base salary (as a percent)	13.50%	13.50%
Employee contributions on contributory variable compensation (as a percent)	9%	9%
UBS Swiss defined benefit plan | Minimum
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions on contributory base salary (as a percent)	6.50%	6.50%
Employer contributions on contributory variable compensation (as a percent)	2.80%	2.80%
Employee contributions on contributory base salary (as a percent)	2.50%	2.50%
Employee contributions on contributory variable compensation (as a percent)	0%	0%
Credit Suisse Swiss defined benefit plan
Disclosure Of Defined Benefit Plans [Line Items]
Salary limit for covered contributions	SFr 138,180	$ 164,169
Employer contributions on contributory variable compensation (as a percent)	6%	6%
Technical funding ratio	124%	124%
Technical interest rate	1.62%	1.62%
Surplus / (deficit)		$ 3,150,000,000			$ 3,772,000,000
Net defined benefit asset recognized for prepaid contribution		88,000,000			$ 77,000,000
Credit Suisse Swiss defined benefit plan | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		$ 283,000,000
Credit Suisse Swiss defined benefit plan | Maximum
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions on contributory base salary (as a percent)	25%	25%
Employee contributions on contributory base salary (as a percent)	14%	14%
Employee contributions on contributory variable compensation (as a percent)	9%	9%
Credit Suisse Swiss defined benefit plan | Minimum
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions on contributory base salary (as a percent)	7.50%	7.50%
Employee contributions on contributory base salary (as a percent)	5%	5%
Employee contributions on contributory variable compensation (as a percent)	3%	3%
UK Defined Benefit Plans [Member]
Disclosure Of Defined Benefit Plans [Line Items]
Normal retirement age, older population | yr	60	60
Normal retirement age | yr	65	65
Surplus / (deficit)		$ 897,000,000	321,000,000
UBS UK defined benefit plan
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions		19,000,000	5,000,000
Collateral pool established for pension fund		260,000,000	292,000,000
UBS UK defined benefit plan | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		19,000,000
Credit Suisse UK defined benefit plan
Disclosure Of Defined Benefit Plans [Line Items]
Employer contributions		7,000,000
US and German defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Surplus / (deficit)		$ (519,000,000)	$ (335,000,000)
US defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Normal retirement age | yr	65	65
UBS US defined benefit plans | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		$ 12,000,000
Credit Suisse US defined benefit plans | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		$ 10,000,000
German defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Normal retirement age | yr	65	65
German defined benefit plans | 2024
Disclosure Of Defined Benefit Plans [Line Items]
Regular employer contributions expected for the next year		$ 14,000,000
German defined benefit plans - Larger
Disclosure Of Defined Benefit Plans [Line Items]
Interest rate	5%	5%
German defined benefit plans - Smaller | before 2010
Disclosure Of Defined Benefit Plans [Line Items]
Interest rate	6%	6%
German defined benefit plans - Smaller | 2010-2017
Disclosure Of Defined Benefit Plans [Line Items]
Interest rate	4%	4%
German defined benefit plans - Smaller | time after 2017
Disclosure Of Defined Benefit Plans [Line Items]
Interest rate	0.90%	0.90%
German defined benefit plans - New funded plan
Disclosure Of Defined Benefit Plans [Line Items]
Interest rate	0%	0%

Defined benefit plans (Detail 4

Defined benefit plans (Detail 4.1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	$ (114)
At the end of the year	293	$ (114)
Major Defined Benefit Plans [Member]
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	(14)
Remeasurement of defined benefit obligation	(4,678)	5,891
Past service cost related to plan amendments	(245)	0
Termination benefits	21	0
Return on plan assets excluding interest income	1,453	(4,782)
Asset ceiling effect excluding interest expense and foreign currency translation	3,336	(1,189)
At the end of the year	466	(14)
Major Defined Benefit Plans [Member] | Defined benefit obligation
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	25,813	33,242
Current service cost	573	420
Interest expense	907	446
Plan participant contributions	370	257
Remeasurement of defined benefit obligation	4,678	(5,891)
of which: actuarial (gains) / losses due to changes in demographic assumptions	(5)	(2)
of which: actuarial (gains) / losses due to changes in financial assumptions	3,064	(6,520)
of which: experience (gains) / losses	1,619	631
Past service cost related to plan amendments	245	0
Curtailments	(29)	(20)
Benefit payments	(2,611)	(1,687)
Termination benefits	21	0
Other movements	0	(5)
Foreign currency translation	3,667	(949)
At the end of the year	50,756	25,813
Major Defined Benefit Plans [Member] | Defined benefit obligation | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	17,121	0
Major Defined Benefit Plans [Member] | Fair value of plan assets
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	33,646	39,601
Plan participant contributions	370	257
Benefit payments	(2,611)	(1,687)
Other movements	2	(2)
Return on plan assets excluding interest income	1,453	(4,782)
Interest income	1,159	586
Employer contributions	732	706
Administration expenses, taxes and premiums paid	(27)	(16)
Foreign currency translation	4,654	(1,017)
At the end of the year	60,616	33,646
Major Defined Benefit Plans [Member] | Fair value of plan assets | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	21,236	0
Major Defined Benefit Plans [Member] | Asset ceiling effect
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	7,848	6,577
Interest expense on asset ceiling effect	225	135
Asset ceiling effect excluding interest expense and foreign currency translation	(3,336)	1,189
Foreign currency translation	963	(54)
At the end of the year	9,394	7,848
Major Defined Benefit Plans [Member] | Asset ceiling effect | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	3,695	0
Swiss defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
Remeasurement of defined benefit obligation	(4,446)	4,151
Past service cost related to plan amendments	(245)	0
Termination benefits	21	0
Return on plan assets excluding interest income	1,234	(3,248)
Asset ceiling effect excluding interest expense and foreign currency translation	3,336	(1,189)
At the end of the year	88	0
Swiss defined benefit plans | Defined benefit obligation
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	22,272	27,398
Current service cost	567	416
Interest expense	680	344
Plan participant contributions	370	257
Remeasurement of defined benefit obligation	4,446	(4,151)
of which: actuarial (gains) / losses due to changes in demographic assumptions	76	3
of which: actuarial (gains) / losses due to changes in financial assumptions	2,886	(4,666)
of which: experience (gains) / losses	1,484	512
Past service cost related to plan amendments	245	0
Curtailments	(29)	(20)
Benefit payments	(2,309)	(1,454)
Termination benefits	21	0
Other movements	0	(5)
Foreign currency translation	3,516	(513)
At the end of the year	44,922	22,272
Swiss defined benefit plans | Defined benefit obligation | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	15,142	0
Swiss defined benefit plans | Fair value of plan assets
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	30,119	33,975
Plan participant contributions	370	257
Benefit payments	(2,309)	(1,454)
Other movements	2	(2)
Return on plan assets excluding interest income	1,234	(3,248)
Interest income	916	485
Employer contributions	690	685
Administration expenses, taxes and premiums paid	(19)	(12)
Foreign currency translation	4,485	(567)
At the end of the year	54,404	30,119
Swiss defined benefit plans | Fair value of plan assets | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	18,914	0
Swiss defined benefit plans | Asset ceiling effect
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	7,848	6,577
Interest expense on asset ceiling effect	225	135
Asset ceiling effect excluding interest expense and foreign currency translation	(3,336)	1,189
Foreign currency translation	963	(54)
At the end of the year	9,394	7,848
Swiss defined benefit plans | Asset ceiling effect | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	3,695	0
UK defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	321
Remeasurement of defined benefit obligation	(195)	1,474
Past service cost related to plan amendments	0	0
Termination benefits	0	0
Return on plan assets excluding interest income	153	(1,312)
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
At the end of the year	897	321
UK defined benefit plans | Defined benefit obligation
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	2,166	4,105
Current service cost	1	0
Interest expense	139	67
Plan participant contributions	0	0
Remeasurement of defined benefit obligation	195	(1,474)
of which: actuarial (gains) / losses due to changes in demographic assumptions	(79)	(6)
of which: actuarial (gains) / losses due to changes in financial assumptions	128	(1,575)
of which: experience (gains) / losses	146	107
Past service cost related to plan amendments	0	0
Curtailments	0	0
Benefit payments	(125)	(123)
Termination benefits	0	0
Other movements	0	0
Foreign currency translation	137	(408)
At the end of the year	3,467	2,166
UK defined benefit plans | Defined benefit obligation | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	954	0
UK defined benefit plans | Fair value of plan assets
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	2,488	4,297
Plan participant contributions	0	0
Benefit payments	(125)	(123)
Other movements	0	0
Return on plan assets excluding interest income	153	(1,312)
Interest income	173	70
Employer contributions	12	5
Administration expenses, taxes and premiums paid	(1)	0
Foreign currency translation	165	(450)
At the end of the year	4,364	2,488
UK defined benefit plans | Fair value of plan assets | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	1,499	0
UK defined benefit plans | Asset ceiling effect
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0	0
Interest expense on asset ceiling effect	0	0
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
Foreign currency translation	0	0
At the end of the year	0	0
UK defined benefit plans | Asset ceiling effect | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	0	0
US and German defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	(335)
Remeasurement of defined benefit obligation	(37)	267
Past service cost related to plan amendments	0	0
Termination benefits	0	0
Return on plan assets excluding interest income	66	(223)
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
At the end of the year	(519)	(335)
US and German defined benefit plans | Defined benefit obligation
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	1,375	1,740
Current service cost	5	5
Interest expense	88	35
Plan participant contributions	0	0
Remeasurement of defined benefit obligation	37	(267)
of which: actuarial (gains) / losses due to changes in demographic assumptions	(2)	1
of which: actuarial (gains) / losses due to changes in financial assumptions	51	(279)
of which: experience (gains) / losses	(12)	11
Past service cost related to plan amendments	0	0
Curtailments	0	0
Benefit payments	(177)	(111)
Termination benefits	0	0
Other movements	0	0
Foreign currency translation	14	(28)
At the end of the year	2,368	1,375
US and German defined benefit plans | Defined benefit obligation | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	1,025	0
US and German defined benefit plans | Fair value of plan assets
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	1,039	1,329
Plan participant contributions	0	0
Benefit payments	(177)	(111)
Other movements	0	0
Return on plan assets excluding interest income	66	(223)
Interest income	70	31
Employer contributions	29	16
Administration expenses, taxes and premiums paid	(6)	(3)
Foreign currency translation	4	0
At the end of the year	1,849	1,039
US and German defined benefit plans | Fair value of plan assets | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	824	0
US and German defined benefit plans | Asset ceiling effect
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0	0
Interest expense on asset ceiling effect	0	0
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
Foreign currency translation	0	0
At the end of the year	0	0
US and German defined benefit plans | Asset ceiling effect | Credit Suisse
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	0
At the end of the year	0	0
Remaining plans
Disclosure Of Net Defined Benefit Liability Asset [Line Items]
At the beginning of the year	(100)
At the end of the year	$ (173)	$ (100)

Defined benefit plans (Detail_2

Defined benefit plans (Detail 4.2) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Details Of Net Defined Benefit Liability Asset [Line Items]
of which: net defined benefit asset	$ 1,088	$ 355
of which: net defined benefit liability	(795)	(469)
Major Defined Benefit Plans [Member]
Disclosure Of Details Of Net Defined Benefit Liability Asset [Line Items]
of which: amounts owed to active members	24,435	12,160
of which: amounts owed to deferred members	2,558	1,184
of which: amounts owed to retirees	23,763	12,469
Swiss defined benefit plans
Disclosure Of Details Of Net Defined Benefit Liability Asset [Line Items]
of which: amounts owed to active members	24,007	11,927
of which: amounts owed to deferred members	0	0
of which: amounts owed to retirees	20,915	10,345
UK defined benefit plans
Disclosure Of Details Of Net Defined Benefit Liability Asset [Line Items]
of which: amounts owed to active members	97	65
of which: amounts owed to deferred members	1,655	656
of which: amounts owed to retirees	1,715	1,445
US and German defined benefit plans
Disclosure Of Details Of Net Defined Benefit Liability Asset [Line Items]
of which: amounts owed to active members	330	169
of which: amounts owed to deferred members	904	528
of which: amounts owed to retirees	$ 1,134	$ 678

Defined benefit plans (Detail_3

Defined benefit plans (Detail 4.3) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Net Defined Benefit Liability Asset By Funded And Unfunded [Line Items]
Net defined benefit asset / (liability)	$ 293	$ (114)
Total
Disclosure Of Net Defined Benefit Liability Asset By Funded And Unfunded [Line Items]
Defined benefit obligation from funded plans	50,186	25,449
Defined benefit obligation from unfunded plans	571	363
Surplus / (deficit)	9,860	7,834
Net defined benefit asset / (liability)	466	(14)
Swiss defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset By Funded And Unfunded [Line Items]
Defined benefit obligation from funded plans	44,922	22,272
Defined benefit obligation from unfunded plans	0	0
Plan assets	54,404	30,119
Surplus / (deficit)	9,482	7,848
Net defined benefit asset / (liability)	88	0
UK defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset By Funded And Unfunded [Line Items]
Defined benefit obligation from funded plans	3,467	2,166
Defined benefit obligation from unfunded plans	0	0
Plan assets	4,364	2,488
Surplus / (deficit)	897	321
Net defined benefit asset / (liability)	897	321
US and German defined benefit plans
Disclosure Of Net Defined Benefit Liability Asset By Funded And Unfunded [Line Items]
Defined benefit obligation from funded plans	1,797	1,011
Defined benefit obligation from unfunded plans	571	363
Plan assets	1,849	1,039
Surplus / (deficit)	(519)	(335)
Net defined benefit asset / (liability)	$ (519)	$ (335)

Defined benefit plans (Detail 5

Defined benefit plans (Detail 5.1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Curtailments	$ (29)	$ (20)	$ (80)
Net periodic expenses recognized in net profit	847	437	$ 470
Major Defined Benefit Plans [Member]
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Current service cost	573	420
Interest expense related to defined benefit obligation	907	446
Interest income related to plan assets	1,159	586
Interest expense on asset ceiling effect	225	135
Administration expenses, taxes and premiums paid	27	16
Past service cost related to plan amendments	245	0
Curtailments	(29)	(20)
Termination benefits	21	0
Other movements	(2)	0
Net periodic expenses recognized in net profit	808	411
Swiss defined benefit plans
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Current service cost	567	416
Interest expense related to defined benefit obligation	680	344
Interest income related to plan assets	916	485
Interest expense on asset ceiling effect	225	135
Administration expenses, taxes and premiums paid	19	12
Past service cost related to plan amendments	245	0
Curtailments	(29)	(20)
Termination benefits	21	0
Other movements	(2)	0
Net periodic expenses recognized in net profit	811	402
UK defined benefit plans
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Current service cost	1	0
Interest expense related to defined benefit obligation	139	67
Interest income related to plan assets	173	70
Interest expense on asset ceiling effect	0	0
Administration expenses, taxes and premiums paid	1	0
Past service cost related to plan amendments	0	0
Curtailments	0	0
Termination benefits	0	0
Other movements	0	0
Net periodic expenses recognized in net profit	(32)	(3)
US and German defined benefit plans
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Current service cost	5	5
Interest expense related to defined benefit obligation	88	35
Interest income related to plan assets	(70)	(31)
Interest expense on asset ceiling effect	0	0
Administration expenses, taxes and premiums paid	6	3
Past service cost related to plan amendments	0	0
Curtailments	0	0
Termination benefits	0	0
Other movements	0	0
Net periodic expenses recognized in net profit	30	12
Remaining plans
Post-employment Benefit Expense Defined Benefit Pension Plans [Line Items]
Net periodic expenses recognized in net profit	$ 38	$ 25

Defined benefit plans (Detail_4

Defined benefit plans (Detail 5.2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Total gains / (losses) recognized in other comprehensive income, before tax	$ 110	$ (73)
Major Defined Benefit Plans [Member]
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(4,678)	5,891
Return on plan assets excluding interest income	1,453	(4,782)
Asset ceiling effect excluding interest expense and foreign currency translation	3,336	(1,189)
Total gains / (losses) recognized in other comprehensive income, before tax	111	(80)
Major Defined Benefit Plans [Member] | of which: change in discount rate assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(3,495)	7,183
Major Defined Benefit Plans [Member] | of which: change in rate of pension increase assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	39	118
Major Defined Benefit Plans [Member] | of which: change in rate of interest credit on retirement savings assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	470	(800)
Major Defined Benefit Plans [Member] | of which: change in life expectancy
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	79	4
Major Defined Benefit Plans [Member] | of which: change in other actuarial assumptions
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(152)	16
Major Defined Benefit Plans [Member] | of which: experience gains / (losses)
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(1,619)	(631)
Swiss defined benefit plans
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(4,446)	4,151
Return on plan assets excluding interest income	1,234	(3,248)
Asset ceiling effect excluding interest expense and foreign currency translation	3,336	(1,189)
Total gains / (losses) recognized in other comprehensive income, before tax	124	(285)
Swiss defined benefit plans | of which: change in discount rate assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(3,278)	5,414
Swiss defined benefit plans | of which: change in rate of pension increase assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	0	0
Swiss defined benefit plans | of which: change in rate of interest credit on retirement savings assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	479	(718)
Swiss defined benefit plans | of which: change in life expectancy
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	0	0
Swiss defined benefit plans | of which: change in other actuarial assumptions
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(162)	(33)
Swiss defined benefit plans | of which: experience gains / (losses)
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(1,484)	(512)
UK defined benefit plans
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(195)	1,474
Return on plan assets excluding interest income	153	(1,312)
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
Total gains / (losses) recognized in other comprehensive income, before tax	(41)	162
UK defined benefit plans | of which: change in discount rate assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(165)	1,451
UK defined benefit plans | of which: change in rate of pension increase assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	38	123
UK defined benefit plans | of which: change in rate of interest credit on retirement savings assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	0	0
UK defined benefit plans | of which: change in life expectancy
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	79	5
UK defined benefit plans | of which: change in other actuarial assumptions
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	0	1
UK defined benefit plans | of which: experience gains / (losses)
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(146)	(107)
US and German defined benefit plans
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(37)	267
Return on plan assets excluding interest income	66	(223)
Asset ceiling effect excluding interest expense and foreign currency translation	0	0
Total gains / (losses) recognized in other comprehensive income, before tax	28	43
US and German defined benefit plans | of which: change in discount rate assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(51)	317
US and German defined benefit plans | of which: change in rate of pension increase assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	1	(5)
US and German defined benefit plans | of which: change in rate of interest credit on retirement savings assumption
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	(9)	(82)
US and German defined benefit plans | of which: change in life expectancy
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	0	(1)
US and German defined benefit plans | of which: change in other actuarial assumptions
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	10	48
US and German defined benefit plans | of which: experience gains / (losses)
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Remeasurement of defined benefit obligation	12	(11)
Remaining plans
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Pension Plans [Line Items]
Total gains / (losses) recognized in other comprehensive income, before tax	$ (2)	$ 7

Defined benefit plans (Detail 6

Defined benefit plans (Detail 6) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Swiss defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Duration of the defined benefit obligation	13 years 1 month 6 days	13 years 1 month 6 days
Maturity analysis of benefits expected to be paid
Benefits expected to be paid within 12 months	$ 3,056	$ 1,294
Benefits expected to be paid between 1 and 3 years	5,149	2,657
Benefits expected to be paid between 3 and 6 years	7,671	3,977
Benefits expected to be paid between 6 and 11 years	12,080	6,743
Benefits expected to be paid between 11 and 16 years	10,513	6,223
Benefits expected to be paid in more than 16 years	$ 34,221	$ 22,446
UK defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Duration of the defined benefit obligation	15 years 1 month 6 days	13 years 8 months 12 days
Maturity analysis of benefits expected to be paid
Benefits expected to be paid within 12 months	$ 182	$ 107
Benefits expected to be paid between 1 and 3 years	337	234
Benefits expected to be paid between 3 and 6 years	563	384
Benefits expected to be paid between 6 and 11 years	1,032	667
Benefits expected to be paid between 11 and 16 years	1,066	667
Benefits expected to be paid in more than 16 years	$ 4,339	$ 2,570
US and German defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Duration of the defined benefit obligation	8 years 3 months 18 days	7 years 10 months 24 days
Maturity analysis of benefits expected to be paid
Benefits expected to be paid within 12 months	$ 221	$ 123
Benefits expected to be paid between 1 and 3 years	412	232
Benefits expected to be paid between 3 and 6 years	558	335
Benefits expected to be paid between 6 and 11 years	847	502
Benefits expected to be paid between 11 and 16 years	632	388
Benefits expected to be paid in more than 16 years	$ 925	$ 516

Defined benefit plans (Detail 7

Defined benefit plans (Detail 7)	Dec. 31, 2023	Dec. 31, 2022
Swiss defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Discount rate	1.48%	2.34%
Rate of pension increase	0%	0%
Rate of interest credit on retirement savings	2.54%	3.39%
UK defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Discount rate	4.79%	5.02%
Rate of pension increase	2.94%	3.08%
Rate of interest credit on retirement savings	0%	0%
US defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Discount rate	4.75%	4.92%
Rate of pension increase	0%	0%
Rate of interest credit on retirement savings	6.28%	5.73%
German defined benefit plans
Disclosure Of Defined Benefit Plans [Line Items]
Discount rate	3.28%	3.81%
Rate of pension increase	2.10%	2.20%
Rate of interest credit on retirement savings	0%	0%

Defined benefit plans (Detail 8

Defined benefit plans (Detail 8) - yr	Dec. 31, 2023	Dec. 31, 2022
Switzerland | aged 65 | Mortality table Switzerland
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	21.8	21.7
Life expectancy at age 65 for a female member currently	23.5	23.5
Switzerland | aged 45 | Mortality table Switzerland
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	23.5	23.4
Life expectancy at age 65 for a female member currently	25.1	25.1
UK | aged 65 | Mortality table UK
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	22.2	23.5
Life expectancy at age 65 for a female member currently	24	25
UK | aged 65 | Mortality table UK | Credit Suisse
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	23.1
Life expectancy at age 65 for a female member currently	24.7
UK | aged 45 | Mortality table UK
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	23.4	24.6
Life expectancy at age 65 for a female member currently	25.7	26.4
UK | aged 45 | Mortality table UK | Credit Suisse
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	24.3
Life expectancy at age 65 for a female member currently	26.1
United States | aged 65 | Mortality table USA
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	22	22
Life expectancy at age 65 for a female member currently	23.5	23.4
United States | aged 45 | Mortality table USA
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	23.4	23.3
Life expectancy at age 65 for a female member currently	24.8	24.8
Germany | aged 65 | Mortality table Germany
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	20.8	20.6
Life expectancy at age 65 for a female member currently	24.2	24
Germany | aged 45 | Mortality table Germany
Disclosure Of Defined Benefit Plans [Line Items]
Life expectancy at age 65 for a male member currently	23.5	23.4
Life expectancy at age 65 for a female member currently	26.4	26.3

Defined benefit plans (Detail 9

Defined benefit plans (Detail 9) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Swiss defined benefit plans
Increase / (decrease) in defined benefit obligation
Rate of pension increase	0%	0%
Swiss defined benefit plans | Discount rate
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	$ (2,365)	$ (1,128)
Decrease by 50 basis points	2,668	1,269
Swiss defined benefit plans | Rate of pension increase
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	1,894	877
Swiss defined benefit plans | Rate of interest credit on retirement savings
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	334	178
Decrease by 50 basis points	(334)	(178)
Swiss defined benefit plans | Life expectancy
Increase / (decrease) in defined benefit obligation
Increase in longevity by one additional year	$ 1,315	$ 593
UK defined benefit plans
Increase / (decrease) in defined benefit obligation
Rate of pension increase	2.94%	3.08%
UK defined benefit plans | Discount rate
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	$ (243)	$ (141)
Decrease by 50 basis points	272	157
UK defined benefit plans | Rate of pension increase
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	204	127
Decrease by 50 basis points	(189)	(118)
UK defined benefit plans | Life expectancy
Increase / (decrease) in defined benefit obligation
Increase in longevity by one additional year	108	65
US and German defined benefit plans | Discount rate
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	(91)	(51)
Decrease by 50 basis points	98	55
US and German defined benefit plans | Rate of pension increase
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	10	4
Decrease by 50 basis points	(9)	(3)
US and German defined benefit plans | Rate of interest credit on retirement savings
Increase / (decrease) in defined benefit obligation
Increase by 50 basis points	9	9
Decrease by 50 basis points	(8)	(8)
US and German defined benefit plans | Life expectancy
Increase / (decrease) in defined benefit obligation
Increase in longevity by one additional year	$ 64	$ 39

Defined benefit plans (Detail 1

Defined benefit plans (Detail 10) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Swiss defined benefit plans
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 54,404	$ 30,119
Plan asset allocation %	100%	100%
Swiss defined benefit plans | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,205	$ 326
Plan asset allocation %	2%	1%
Swiss defined benefit plans | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 24	$ 0
Plan asset allocation %	0%	0%
Swiss defined benefit plans | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 2,132	$ 0
Plan asset allocation %	4%	0%
Swiss defined benefit plans | Real estate / property - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 6,195	$ 3,783
Plan asset allocation %	11%	13%
Swiss defined benefit plans | Real estate / property - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,017	$ 919
Plan asset allocation %	2%	3%
Swiss defined benefit plans | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 100	$ 0
Plan asset allocation %	0%	0%
Swiss defined benefit plans | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 51	$ 0
Plan asset allocation %	0%	0%
Swiss defined benefit plans | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,376	$ 743
Plan asset allocation %	3%	2%
Swiss defined benefit plans | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 10,513	$ 7,134
Plan asset allocation %	19%	24%
Swiss defined benefit plans | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 7,952	$ 3,760
Plan asset allocation %	15%	12%
Swiss defined benefit plans | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1	$ 0
Plan asset allocation %	0%	0%
Swiss defined benefit plans | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 13,497	$ 6,031
Plan asset allocation %	25%	20%
Swiss defined benefit plans | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,249	$ 1,062
Plan asset allocation %	2%	4%
Swiss defined benefit plans | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,906	$ 0
Plan asset allocation %	4%	0%
Swiss defined benefit plans | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 616	$ 0
Plan asset allocation %	1%	0%
Swiss defined benefit plans | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 5,333	$ 5,086
Plan asset allocation %	10%	17%
Swiss defined benefit plans | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,236	$ 1,275
Plan asset allocation %	2%	4%
Swiss defined benefit plans | Quoted in an active market
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 38,817	$ 19,049
Swiss defined benefit plans | Quoted in an active market | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,205	326
Swiss defined benefit plans | Quoted in an active market | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Quoted in an active market | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Quoted in an active market | Real estate / property - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Quoted in an active market | Real estate / property - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Quoted in an active market | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	100	0
Swiss defined benefit plans | Quoted in an active market | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	51	0
Swiss defined benefit plans | Quoted in an active market | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,376	743
Swiss defined benefit plans | Quoted in an active market | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	8,317	4,964
Swiss defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	7,952	3,760
Swiss defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1	0
Swiss defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	13,497	6,031
Swiss defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,249	1,062
Swiss defined benefit plans | Quoted in an active market | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,906	0
Swiss defined benefit plans | Quoted in an active market | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	537	0
Swiss defined benefit plans | Quoted in an active market | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,960	1,540
Swiss defined benefit plans | Quoted in an active market | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	667	624
Swiss defined benefit plans | Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	15,586	11,071
Swiss defined benefit plans | Other | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	24	0
Swiss defined benefit plans | Other | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	2,132	0
Swiss defined benefit plans | Other | Real estate / property - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	6,195	3,783
Swiss defined benefit plans | Other | Real estate / property - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1,017	919
Swiss defined benefit plans | Other | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	2,196	2,171
Swiss defined benefit plans | Other | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
Swiss defined benefit plans | Other | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	79	0
Swiss defined benefit plans | Other | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	3,373	3,547
Swiss defined benefit plans | Other | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	569	651
UK defined benefit plans
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 4,364	$ 2,488
Plan asset allocation %	100%	100%
UK defined benefit plans | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 225	$ 104
Plan asset allocation %	5%	4%
UK defined benefit plans | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 3,619	$ 1,729
Plan asset allocation %	83%	69%
UK defined benefit plans | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 7	$ 0
Plan asset allocation %	0%	0%
UK defined benefit plans | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 509	$ 297
Plan asset allocation %	12%	12%
UK defined benefit plans | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 0	$ 7
Plan asset allocation %	0%	0%
UK defined benefit plans | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 12	$ 22
Plan asset allocation %	0%	1%
UK defined benefit plans | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 234	$ 366
Plan asset allocation %	5%	15%
UK defined benefit plans | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 348	$ 457
Plan asset allocation %	8%	18%
UK defined benefit plans | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 6	$ 1
Plan asset allocation %	0%	0%
UK defined benefit plans | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 97	$ 90
Plan asset allocation %	2%	4%
UK defined benefit plans | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 93	$ 114
Plan asset allocation %	2%	5%
UK defined benefit plans | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 61	$ 64
Plan asset allocation %	1%	3%
UK defined benefit plans | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 16	$ 36
Plan asset allocation %	0%	1%
UK defined benefit plans | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 64	$ (280)
Plan asset allocation %	1%	(11.00%)
UK defined benefit plans | Repurchase agreements
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ (947)	$ (612)
Plan asset allocation %	(22.00%)	(25.00%)
UK defined benefit plans | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 20	$ 94
Plan asset allocation %	0%	4%
UK defined benefit plans | Quoted in an active market
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 4,306	$ 2,336
UK defined benefit plans | Quoted in an active market | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	225	104
UK defined benefit plans | Quoted in an active market | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	3,619	1,729
UK defined benefit plans | Quoted in an active market | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	7	0
UK defined benefit plans | Quoted in an active market | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	509	297
UK defined benefit plans | Quoted in an active market | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	7
UK defined benefit plans | Quoted in an active market | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	9	19
UK defined benefit plans | Quoted in an active market | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	234	366
UK defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	310	367
UK defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	6	1
UK defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	97	90
UK defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	93	114
UK defined benefit plans | Quoted in an active market | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	61	64
UK defined benefit plans | Quoted in an active market | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	4	6
UK defined benefit plans | Quoted in an active market | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	64	(280)
UK defined benefit plans | Quoted in an active market | Repurchase agreements
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	(947)	(612)
UK defined benefit plans | Quoted in an active market | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	15	66
UK defined benefit plans | Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	58	151
UK defined benefit plans | Other | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	3	3
UK defined benefit plans | Other | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	38	90
UK defined benefit plans | Other | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	12	31
UK defined benefit plans | Other | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Repurchase agreements
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
UK defined benefit plans | Other | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	5	27
US and German defined benefit plans
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,849	$ 1,039
Plan asset allocation %	100%	100%
US and German defined benefit plans | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 32	$ 7
Plan asset allocation %	2%	1%
US and German defined benefit plans | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 54	$ 55
Plan asset allocation %	3%	5%
US and German defined benefit plans | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 23	$ 24
Plan asset allocation %	1%	2%
US and German defined benefit plans | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 308	$ 359
Plan asset allocation %	17%	35%
US and German defined benefit plans | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 3	$ 4
Plan asset allocation %	0%	0%
US and German defined benefit plans | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 51	$ 74
Plan asset allocation %	3%	7%
US and German defined benefit plans | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 2	$ 3
Plan asset allocation %	0%	0%
US and German defined benefit plans | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 51	$ 27
Plan asset allocation %	3%	3%
US and German defined benefit plans | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 100	$ 33
Plan asset allocation %	5%	3%
US and German defined benefit plans | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 853	$ 266
Plan asset allocation %	46%	26%
US and German defined benefit plans | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 213	$ 109
Plan asset allocation %	12%	10%
US and German defined benefit plans | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 89	$ 2
Plan asset allocation %	5%	0%
US and German defined benefit plans | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 9	$ 5
Plan asset allocation %	1%	0%
US and German defined benefit plans | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 10	$ 11
Plan asset allocation %	1%	1%
US and German defined benefit plans | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 2	$ 0
Plan asset allocation %	0%	0%
US and German defined benefit plans | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 52	$ 54
Plan asset allocation %	3%	5%
US and German defined benefit plans | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ (3)	$ 6
Plan asset allocation %	0%	1%
US and German defined benefit plans | Quoted in an active market
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 1,461	$ 1,027
US and German defined benefit plans | Quoted in an active market | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	32	7
US and German defined benefit plans | Quoted in an active market | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	54	55
US and German defined benefit plans | Quoted in an active market | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	23	24
US and German defined benefit plans | Quoted in an active market | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	308	359
US and German defined benefit plans | Quoted in an active market | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	3	4
US and German defined benefit plans | Quoted in an active market | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	51	74
US and German defined benefit plans | Quoted in an active market | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	2	3
US and German defined benefit plans | Quoted in an active market | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	51	27
US and German defined benefit plans | Quoted in an active market | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	82	33
US and German defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	552	266
US and German defined benefit plans | Quoted in an active market | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	172	109
US and German defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	75	2
US and German defined benefit plans | Quoted in an active market | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	9	5
US and German defined benefit plans | Quoted in an active market | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	1	0
US and German defined benefit plans | Quoted in an active market | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	2	0
US and German defined benefit plans | Quoted in an active market | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	51	54
US and German defined benefit plans | Quoted in an active market | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	(8)	5
US and German defined benefit plans | Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	388	12
US and German defined benefit plans | Other | Cash and cash equivalents
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Equity securities - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Equity securities - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Investment funds - Equity - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Investment funds - Equity - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	18	0
US and German defined benefit plans | Other | Investment funds - Bonds - Domestic, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	300	0
US and German defined benefit plans | Other | Investment funds - Bonds - Domestic, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	41	0
US and German defined benefit plans | Other | Investment funds - Bonds - Foreign, AAA to BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	14	0
US and German defined benefit plans | Other | Investment funds - Bonds - Foreign, below BBB-
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Investment funds - Real estate - Domestic
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	9	11
US and German defined benefit plans | Other | Investment funds - Real estate - Foreign
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Investment funds - Other
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	0	0
US and German defined benefit plans | Other | Other investments
Disclosure Of Fair Value Of Plan Assets [Line Items]
Fair value	$ 5	$ 1

Defined benefit plans (Detail_5

Defined benefit plans (Detail 11) - Swiss defined benefit plans - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Plan Assets At Fair Value By Plan [Line Items]
Fair value	$ 54,404	$ 30,119
Derivative financial instruments, net of collateral	(33)	(8)
Bank accounts at UBS
Plan Assets At Fair Value By Plan [Line Items]
Fair value	666	337
UBS debt instruments
Plan Assets At Fair Value By Plan [Line Items]
Fair value	211	50
UBS shares
Plan Assets At Fair Value By Plan [Line Items]
Fair value	72	27
Securities lent to UBS
Plan Assets At Fair Value By Plan [Line Items]
Fair value	827	871
Property occupied by UBS
Plan Assets At Fair Value By Plan [Line Items]
Fair value	108	90
Derivative financial instruments, counterparty UBS
Plan Assets At Fair Value By Plan [Line Items]
Fair value	$ 534	$ 76

Defined contribution plans (Nar

Defined contribution plans (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Defined Contribution Plans [Line Items]
Total employer contributions to defined contribution plans	$ 514	$ 357	$ 363
UBS defined contribution plans
Disclosure Of Defined Contribution Plans [Line Items]
Total employer contributions to defined contribution plans	386	$ 357
Credit Suisse defined contribution plans
Disclosure Of Defined Contribution Plans [Line Items]
Total employer contributions to defined contribution plans	$ 128

Related party disclosure (Narra

Related party disclosure (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Major UBS Defined benetit plans
Related Party Disclosure On Pension And Other Post Employment Benefit Plans [Line Items]
Fees	$ 35	$ 36
Fair value	417	$ 265
Major Credit Suisse defined benefit plans
Related Party Disclosure On Pension And Other Post Employment Benefit Plans [Line Items]
Fees	11
Fair value	$ 26

Employee benefits_ variable c_3

Employee benefits: variable compensation (Narrative) (Detail 1)		12 Months Ended
	Jun. 12, 2023	Dec. 31, 2023 d shares	Dec. 31, 2022 shares
Equity Participation And Other Compensation Plans [Line Items]
Share delivery obligations		196,000,000	178,000,000
Treasury shares available to satisfy share delivery obligations		131,000,000	119,000,000
Credit Suisse
Equity Participation And Other Compensation Plans [Line Items]
Percentage of retention awards offered in cash	50%	50%
Vesting requirement for payment arrangement	60	60
Percentage of retention awards offered in shares	50%	50%
Acquiree shares exchanged for 1 acquirer share		22.48
Deferred Contingent Capital Plan
Equity Participation And Other Compensation Plans [Line Items]
Percentage of awards that GEB members forfeit for each year during the vesting period in which UBS does not achieve an adjusted profit before tax		20%

Employee benefits_ variable c_4

Employee benefits: variable compensation (Narrative) (Detail 2) $ in Millions	Dec. 31, 2023 USD ($) yr	Dec. 31, 2022 USD ($)
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Carrying amount of liability related to cash-settled share-based awards | $	$ 64	$ 43
Unvested share-based awards
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Weighted average remaining contractual term (years) | yr	2.2

Employee benefits_ variable c_5

Employee benefits: variable compensation - Effect on income statement (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	$ 9,845	$ 7,954	$ 8,280
Variable compensation deferred to the next and following years	7,037	5,731	5,238
Variable compensation related to share-based compensation	1,094	703	651
Variable compensation related to share-based compensation - performance awards	689	480	435
Variable compensation related to share-based compensation - other variable compensation	208	56	59
Variable compensation related to share-based compensation - financial advisor variable compensation	197	166	157
Variable compensation related to share-based compensation recognized within other personnel expenses categories	169	88	85
Salaries related to share-based compensation	4	4	5
Social security related to share-based compensation	137	61	64
Personnel expenses related to share-based compensation - Equity Plus Plan	27	23	16
Personnel expenses related to share-based equity-settled compensation excluding social security	1,097	716	643
Personnel expenses related to share-based equity-settled compensation excluding social security, before FX effect	1,087	716	641
Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	7,927	6,608	7,155
Variable compensation deferred to the next and following years	2,398	2,131	2,109
Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	1,918	1,346	1,125
Variable compensation deferred to the next and following years	4,640	3,599	3,129
Variable compensation - performance awards
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	3,986	3,205	3,190
Variable compensation deferred to the next and following years	1,534	1,359	1,421
Variable compensation - performance awards | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	3,382	2,640	2,788
Variable compensation deferred to the next and following years	777	605	797
Variable compensation - performance awards | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	604	566	402
Variable compensation deferred to the next and following years	757	754	624
Non-deferred cash
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	2,807	2,260	2,373
Variable compensation deferred to the next and following years	0	0	0
Non-deferred cash | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	2,859	2,276	2,383
Variable compensation deferred to the next and following years	0	0	0
Non-deferred cash | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	(52)	(16)	(10)
Variable compensation deferred to the next and following years	0	0	0
Deferred compensation awards
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	1,179	945	817
Variable compensation deferred to the next and following years	1,534	1,359	1,421
Deferred compensation awards | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	523	364	405
Variable compensation deferred to the next and following years	777	605	797
Deferred compensation awards | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	656	581	412
Variable compensation deferred to the next and following years	757	754	624
of which: Equity Ownership Plan
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	485	437	363
Variable compensation deferred to the next and following years	509	560	577
of which: Equity Ownership Plan | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	155	202	183
Variable compensation deferred to the next and following years	263	310	393
of which: Equity Ownership Plan | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	330	235	180
Variable compensation deferred to the next and following years	245	250	184
of which: Deferred Contingent Capital Plan
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	421	349	297
Variable compensation deferred to the next and following years	763	654	628
of which: Deferred Contingent Capital Plan | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	180	129	140
Variable compensation deferred to the next and following years	312	245	299
of which: Deferred Contingent Capital Plan | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	241	219	158
Variable compensation deferred to the next and following years	451	408	329
of which: Long Term Incentive Plan
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	204	43	73
Variable compensation deferred to the next and following years	193	71	83
of which: Long Term Incentive Plan | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	164	11	54
Variable compensation deferred to the next and following years	160	30	50
of which: Long Term Incentive Plan | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	40	32	19
Variable compensation deferred to the next and following years	34	42	33
of which: Fund Ownership Plan
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	69	116	84
Variable compensation deferred to the next and following years	68	74	133
of which: Fund Ownership Plan | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	24	21	29
Variable compensation deferred to the next and following years	41	20	56
of which: Fund Ownership Plan | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	46	95	56
Variable compensation deferred to the next and following years	27	54	78
Variable compensation - other
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	1,310	241	229
Variable compensation deferred to the next and following years	968	430	397
Variable compensation - other | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	784	169	191
Variable compensation deferred to the next and following years	384	237	215
Variable compensation - other | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	526	71	38
Variable compensation deferred to the next and following years	583	193	182
Variable compensation other - retention awards | Credit Suisse
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	335
Variable compensation other - outstanding deferred compensation | Credit Suisse
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	412
Variable compensation - financial advisors
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	4,549	4,508	4,860
Variable compensation deferred to the next and following years	4,536	3,942	3,419
Variable compensation - financial advisors | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	3,761	3,799	4,175
Variable compensation deferred to the next and following years	1,236	1,290	1,097
Variable compensation - financial advisors | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	788	709	685
Variable compensation deferred to the next and following years	3,300	2,652	2,323
of which: non-deferred cash
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	3,436	3,481	3,853
Variable compensation deferred to the next and following years	0	0	0
of which: non-deferred cash | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	3,440	3,481	3,858
Variable compensation deferred to the next and following years	0	0	0
of which: non-deferred cash | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	(4)	0	(6)
Variable compensation deferred to the next and following years	0	0	0
of which: deferred share-based awards
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	197	166	157
Variable compensation deferred to the next and following years	321	302	269
of which: deferred share-based awards | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	110	104	106
Variable compensation deferred to the next and following years	113	122	123
of which: deferred share-based awards | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	87	62	51
Variable compensation deferred to the next and following years	209	180	146
of which: deferred cash-based awards
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	414	400	372
Variable compensation deferred to the next and following years	1,331	1,224	806
of which: deferred cash-based awards | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	169	185	170
Variable compensation deferred to the next and following years	301	588	311
of which: deferred cash-based awards | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	245	215	202
Variable compensation deferred to the next and following years	1,029	636	495
of which : compensation commitments with recruited financial advisors
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	502	461	479
Variable compensation deferred to the next and following years	2,884	2,416	2,344
of which : compensation commitments with recruited financial advisors | Related to performance year
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	42	29	41
Variable compensation deferred to the next and following years	822	580	662
of which : compensation commitments with recruited financial advisors | Related to prior performance years
Income Statement Compensation Items [Line Items]
Variable compensation for the current year	459	432	438
Variable compensation deferred to the next and following years	$ 2,062	$ 1,836	$ 1,682

Employee benefits_ variable c_6

Employee benefits: variable compensation - Movements (Detail)	12 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares
Share Awards [Line Items]
Number of shares outstanding, at the beginning of the year	181,907,200	180,578,561
Number of share obligations assumed at merger date	14,535,612
Number of shares awarded during the year	63,907,823	62,203,770
Number of share distributions during the year	(54,365,846)	(54,639,882)
Number of shares forfeited during the year	(7,076,202)	(6,235,249)
Number of shares outstanding, at the end of the year	198,908,588	181,907,200
Number of shares vested for accounting purposes	102,697,819	102,364,973
Weighted average grant date fair value of shares outstanding, at the beginning of the year | $	$ 15	$ 13
Weighted average grant date fair value of share obligations assumed at merger date | $	20
Weighted average grant date fair value of shares awarded during the year | $	20	18
Weighted average grant date fair value of share distributions during the year | $	14	12
Weighted average grant date fair value of shares forfeited during the year | $	18	15
Weighted average grant date fair value of shares outstanding, at the end of the year | $	$ 17	$ 15

Interests in subsidiaries (Deta

Interests in subsidiaries (Detail 1.1) SFr in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Share capital | $		$ 346	$ 304
UBS AG Subsidiaries
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Company	UBS AG
Registered office	Zurich and Basel, Switzerland
Share capital | $		$ 385.8
Equity interest accumulated in %	100%
UBS Business Solutions AG
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Company	UBS Business Solutions AG
Registered office	Zurich, Switzerland
Share capital	SFr 1
Equity interest accumulated in %	100%
Credit Suisse AG
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Company	Credit Suisse AG
Registered office	Zurich, Switzerland
Share capital	SFr 4,399.7
Equity interest accumulated in %	100%
Credit Suisse Services AG
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Company	Credit Suisse Services AG
Registered office	Zurich, Switzerland
Share capital	SFr 1
Equity interest accumulated in %	100%

Interests in subsidiaries (De_2

Interests in subsidiaries (Detail 1.2) € in Millions, SFr in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Individually significant subsidiaries of UBS AG
Share capital			$ 346,000,000	$ 304,000,000
UBS Americas Holding LLC
Individually significant subsidiaries of UBS AG
Company	UBS Americas Holding LLC
Registered office	Wilmington, Delaware, USA
Primary business division	Group Items
Share capital			2,900,000,000
Equity interest accumulated in %	100%
Common share capital			1,000
Preference share capital			2,900,000,000
UBS Americas Inc.
Individually significant subsidiaries of UBS AG
Company	UBS Americas Inc.
Registered office	Wilmington, Delaware, USA
Primary business division	Group Items
Share capital			0
Equity interest accumulated in %	100%
UBS Asset Management AG
Individually significant subsidiaries of UBS AG
Company	UBS Asset Management AG
Registered office	Zurich, Switzerland
Primary business division	Asset Management
Share capital | SFr	SFr 43.2
Equity interest accumulated in %	100%
UBS Bank USA
Individually significant subsidiaries of UBS AG
Company	UBS Bank USA
Registered office	Salt Lake City, Utah, USA
Primary business division	Global Wealth Management
Share capital			0
Equity interest accumulated in %	100%
UBS Europe SE
Individually significant subsidiaries of UBS AG
Company	UBS Europe SE
Registered office	Frankfurt, Germany
Primary business division	Global Wealth Management
Share capital | €		€ 446
Equity interest accumulated in %	100%
UBS Financial Services Inc.
Individually significant subsidiaries of UBS AG
Company	UBS Financial Services Inc.
Registered office	Wilmington, Delaware, USA
Primary business division	Global Wealth Management
Share capital			0
Equity interest accumulated in %	100%
UBS Securities LLC
Individually significant subsidiaries of UBS AG
Company	UBS Securities LLC
Registered office	Wilmington, Delaware, USA
Primary business division	Investment Bank
Share capital			1,283,100,000
Equity interest accumulated in %	100%
Common share capital			100,000
Preference share capital			$ 1,283,000,000
UBS Switzerland AG
Individually significant subsidiaries of UBS AG
Company	UBS Switzerland AG
Registered office	Zurich, Switzerland
Primary business division	Personal & Corporate Banking
Share capital | SFr	SFr 10
Equity interest accumulated in %	100%

Interests in subsidiaries (De_3

Interests in subsidiaries (Detail 1.3) SFr in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Individually significant subsidiaries of Credit Suisse AG
Share capital		$ 346	$ 304
Credit Suisse International
Individually significant subsidiaries of Credit Suisse AG
Company	Credit Suisse International
Registered office	London, United Kingdom
Primary business division	Non-core and Legacy
Share capital		7,267.5
Equity interest accumulated in %	97.60%
Credit Suisse (Schweiz) AG
Individually significant subsidiaries of Credit Suisse AG
Company	Credit Suisse (Schweiz) AG
Registered office	Zurich, Switzerland
Primary business division	Personal & Corporate Banking
Share capital | SFr	SFr 100
Equity interest accumulated in %	100%
Credit Suisse Holdings (USA), Inc.
Individually significant subsidiaries of Credit Suisse AG
Company	Credit Suisse Holdings (USA), Inc.
Registered office	Wilmington, United States
Primary business division	Investment Bank
Share capital		$ 0
Equity interest accumulated in %	100%

Interests in subsidiaries (De_4

Interests in subsidiaries (Detail 2) € in Millions, ¥ in Millions, £ in Millions, SFr in Millions, R$ in Millions, $ in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 AUD ($)	Dec. 31, 2023 BRL (R$)	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 GBP (£)	Dec. 31, 2023 HKD ($)	Dec. 31, 2023 JPY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Share capital								$ 346	$ 304
Banco de Investimentos Credit Suisse (Brasil) S.A.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Banco de Investimentos Credit Suisse (Brasil) S.A.
Registered office	São Paulo, Brazil
Primary business division	Investment Banking
Share capital | R$		R$ 164.8
Equity interest accumulated in %	100%
BANK-now AG
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	BANK-now AG
Registered office	Horgen, Switzerland
Primary business division	Personal & Corporate Banking
Share capital | SFr			SFr 30
Equity interest accumulated in %	100%
Credit Suisse (Hong Kong) Limited
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse (Hong Kong) Limited
Registered office	Hong Kong, China
Primary business division	Investment Banking
Share capital						$ 8,192.9
Equity interest accumulated in %	100%
Credit Suisse (UK) Limited
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse (UK) Limited
Registered office	London, United Kingdom
Primary business division	Global Wealth Management
Share capital | £					£ 245.2
Equity interest accumulated in %	100%
Credit Suisse (USA), Inc.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse (USA), Inc.
Registered office	Wilmington, United States
Primary business division	Investment Banking
Share capital								0
Equity interest accumulated in %	100%
Credit Suisse Bank (Europe), S.A.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Bank (Europe), S.A.
Registered office	Spain, Madrid
Primary business division	Investment Banking
Share capital | €				€ 18
Equity interest accumulated in %	100%
Credit Suisse Funds AG
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Funds AG
Registered office	Zurich, Switzerland
Primary business division	Asset Management
Share capital | SFr			7
Equity interest accumulated in %	100%
Credit Suisse Securities (Europe) Limited
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Securities (Europe) Limited
Registered office	London, United Kingdom
Primary business division	Non-core and Legacy
Share capital								9.6
Equity interest accumulated in %	100%
Credit Suisse Securities (Japan) Limited
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Securities (Japan) Limited
Registered office	Tokyo, Japan
Primary business division	Investment Banking
Share capital | ¥							¥ 78,100
Equity interest accumulated in %	100%
Credit Suisse Securities (USA) LLC
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Securities (USA) LLC
Registered office	Wilmington, United States
Primary business division	Non-core and Legacy
Share capital								0
Equity interest accumulated in %	100%
Credit Suisse Services (USA) LLC
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	Credit Suisse Services (USA) LLC
Registered office	Wilmington, United States
Primary business division	Group Items
Share capital								0
Equity interest accumulated in %	100%
DLJ Mortgage Capital, Inc.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	DLJ Mortgage Capital, Inc.
Registered office	Wilmington, United States
Primary business division	Non-core and Legacy
Share capital								0
Equity interest accumulated in %	100%
UBS Asset Management (Americas) Inc.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Asset Management (Americas) Inc.
Registered office	Wilmington, Delaware, USA
Primary business division	Asset Management
Share capital								0
Equity interest accumulated in %	100%
UBS Asset Management Life Ltd
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Asset Management Life Ltd
Registered office	London, United Kingdom
Primary business division	Asset Management
Share capital | £					£ 15
Equity interest accumulated in %	100%
UBS Business Solutions US LLC
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Business Solutions US LLC
Registered office	Wilmington, Delaware, USA
Primary business division	Group Items
Share capital								$ 0
Equity interest accumulated in %	100%
UBS Fund Management (Switzerland) AG
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Fund Management (Switzerland) AG
Registered office	Basel, Switzerland
Primary business division	Asset Management
Share capital | SFr			SFr 1
Equity interest accumulated in %	100%
UBS (Monaco) S.A.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS (Monaco) S.A.
Registered office	Monte Carlo, Monaco
Primary business division	Global Wealth Management
Share capital | €				€ 49.2
Equity interest accumulated in %	100%
UBS Securities Australia Ltd
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Securities Australia Ltd
Registered office	Sydney, Australia
Primary business division	Investment Bank
Share capital	$ 0.3
Equity interest accumulated in %	100%
UBS Securities Hong Kong Limited
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Securities Hong Kong Limited
Registered office	Hong Kong SAR, China
Primary business division	Investment Bank
Share capital						$ 2,841.6
Equity interest accumulated in %	100%
UBS Securities Japan Co., Ltd.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS Securities Japan Co., Ltd.
Registered office	Tokyo, Japan
Primary business division	Investment Bank
Share capital | ¥							34,708.7
Equity interest accumulated in %	100%
UBS SuMi TRUST Wealth Management Co., Ltd.
Disclosure Of Investments In Subsidiaries With Material Group Contribution [Line Items]
Company	UBS SuMi TRUST Wealth Management Co., Ltd.
Registered office	Tokyo, Japan
Primary business division	Global Wealth Management
Share capital | ¥							¥ 5,165
Equity interest accumulated in %	51%

Interests in associates and j_2

Interests in associates and joint ventures (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Investments In Associates And Joint Ventures [Line Items]
Carrying amount at the beginning of the year	$ 1,101	$ 1,243
Additions	1	3
Acquisition of the Credit Suisse Group	1,569	0
Reclassifications	(33)	(44)
Share of comprehensive income	(365)	(41)
of which: share of net profit	(348)	32	$ 105
of which: share of other comprehensive income	(17)	(73)
Share of changes in retained earnings	(1)	0
Dividends received	(90)	(31)
Foreign currency translation	192	(30)
Carrying amount at the end of the year	2,373	1,101	$ 1,243
Share of profit (loss) of associates	(383)	27
Share of profit (loss) of joint ventures	34	5
Share of other comprehensive income of associates	(17)	(73)
Joint ventures
Disclosure Of Investments In Associates And Joint Ventures [Line Items]
of which: joint ventures	209	3
Associates
Disclosure Of Investments In Associates And Joint Ventures [Line Items]
of which: associates	2,164	1,098
of which: SIX Group AG, Zurich
Disclosure Of Investments In Associates And Joint Ventures [Line Items]
of which: associates	1,646	954
of which: other associates
Disclosure Of Investments In Associates And Joint Ventures [Line Items]
of which: associates	$ 519	$ 144

Interests in unconsolidated s_2

Interests in unconsolidated structured entities (Narrative) (Detail) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Sponsored [Member] | Non Existence Of Interest [Member]
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets transferred to client vehicles by UBS, at time of transfer	$ 0.5	$ 1
Assets transferred to client vehicles by third parties, at time of transfer	0.5	3
Total closing net asset value of sponsored investment funds	137	38
Interests in Investment funds represented on balance sheet
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	276	139
Interests in Investment funds not represented on balance sheet
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	511	$ 292
Interests in Securitization vehicles not represented on balance sheet
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	$ 26

Interests in unconsolidated s_3

Interests in unconsolidated structured entities (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023
Disclosure Of Unconsolidated Structured Entities [Line Items]
Increase / (decrease) in interests in securitization vehicles	$ (852)
Increase / (decrease) in interests in client vehicles	(5,057)
Increase / (decrease) in assets held by securitization vehicles	(11,000)
Increase / (decrease) in assets held by client vehicles	(105,000)
Total assets
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	7,023	$ 16,098
Total assets	6,773	15,848
Financial assets at fair value held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	6,149	12,122
Total assets	6,149	12,122
Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	278	244
Total assets	278	244
Loans and advances to customers
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	119	558
Total assets	119	558
Financial assets at fair value not held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	225	2,720
Total assets	225	2,720
Financial assets measured at fair value through other comprehensive income
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	0	0
Total assets	0	0
Other financial assets measured at amortized cost
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	252	453
Total assets	3	203
Total liabilities
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	2	98
Total liabilities	798	623
Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Maximum exposure to loss	2	98
Total liabilities	798	623
Securitization vehicles
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	39,000	70,000
Securitization vehicles | Total assets
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	266	3,935
Securitization vehicles | Financial assets at fair value held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	263	2,086
Securitization vehicles | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	3	2
Securitization vehicles | Loans and advances to customers
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Securitization vehicles | Financial assets at fair value not held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	1,645
Securitization vehicles | Financial assets measured at fair value through other comprehensive income
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Securitization vehicles | Other financial assets measured at amortized cost
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	202
Securitization vehicles | Total liabilities
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	1	7
Securitization vehicles | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	1	7
Client vehicles sponsored by UBS
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	2,000	3,000
Client vehicles sponsored by UBS | Total assets
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	162	232
Client vehicles sponsored by UBS | Financial assets at fair value held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	2	58
Client vehicles sponsored by UBS | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	160	174
Client vehicles sponsored by UBS | Loans and advances to customers
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Client vehicles sponsored by UBS | Financial assets at fair value not held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Client vehicles sponsored by UBS | Financial assets measured at fair value through other comprehensive income
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Client vehicles sponsored by UBS | Other financial assets measured at amortized cost
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Client vehicles sponsored by UBS | Total liabilities
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	35	27
Client vehicles sponsored by UBS | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	35	27
Investment funds | Total assets
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	6,345	10,531
Investment funds | Financial assets at fair value held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	5,884	9,653
Investment funds | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	115	68
Investment funds | Loans and advances to customers
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	119	312
Investment funds | Financial assets at fair value not held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	225	497
Investment funds | Financial assets measured at fair value through other comprehensive income
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Investment funds | Other financial assets measured at amortized cost
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	2	1
Investment funds | Total liabilities
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	763	590
Investment funds | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	763	590
Interests in Investment funds represented on balance sheet
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	139,000	276,000
Other vehicles sponsored by third parties
Disclosure Of Unconsolidated Structured Entities [Line Items]
Assets held by the unconsolidated structured entities in which UBS had an interest	0	1
Other vehicles sponsored by third parties | Total assets
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	1,151
Other vehicles sponsored by third parties | Financial assets at fair value held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	325
Other vehicles sponsored by third parties | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Other vehicles sponsored by third parties | Loans and advances to customers
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	246
Other vehicles sponsored by third parties | Financial assets at fair value not held for trading
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	579
Other vehicles sponsored by third parties | Financial assets measured at fair value through other comprehensive income
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Other vehicles sponsored by third parties | Other financial assets measured at amortized cost
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total assets	0	0
Other vehicles sponsored by third parties | Total liabilities
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	0	0
Other vehicles sponsored by third parties | Derivative financial instruments
Disclosure Of Unconsolidated Structured Entities [Line Items]
Total liabilities	$ 0	$ 0

Interests in unconsolidated s_4

Interests in unconsolidated structured entities (Detail 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Unconsolidated Structured Entities [Line Items]
Net interest income	$ 7,297	$ 6,621	$ 6,705
Net fee and commission income	$ 21,570	$ 18,966	$ 22,387

Changes in organization and a_2

Changes in organization and acquisitions and disposals of subsidiaries and businesses (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Changes In Organisation [Line Items]
Other income other	$ 648	$ 391	$ 185
Asset Management
Disclosure Of Changes In Organisation [Line Items]
Other income other	$ 23
UBS Hana Asset Management Co., Ltd.
Disclosure Of Changes In Organisation [Line Items]
Proportion of ownership interest in subsidiary	51%

Events after the reporting pe_2

Events after the reporting period (Narrative) (Detail) $ / shares in Units, $ in Millions, SFr in Billions		1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 12, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 $ / shares	Dec. 31, 2021 $ / shares	Mar. 22, 2024 CHF (SFr)
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Basic earnings per share | $ / shares				$ 8.83	$ 2.34	$ 2.14
Increase / (decrease) in basic earnings per share | $ / shares				(0.38)
Diluted earnings per share | $ / shares				8.45	$ 2.25	$ 2.06
Increase / (decrease) in diluted earnings per share | $ / shares				$ (0.36)
Increase / (decrease) in operating profit / (loss) before tax				$ (1,200)
Credit Suisse
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Provisional negative goodwill resulting from the acquisition	$ 27,748			$ 27,748
Credit Suisse | As previously reported
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Provisional negative goodwill resulting from the acquisition	28,925
Credit Suisse | Measurement period adjustments
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Provisional negative goodwill resulting from the acquisition	$ (1,177)
Emergency Liquidity Assistance loans repayment | Credit Suisse (Schweiz) AG
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Emergency Liquidity Assistance loans before repayment | SFr							SFr 38
Emergency Liquidity Assistance loans | SFr							SFr 19
Apollo Global Management agreement | Credit Suisse AG
Disclosure Of Nonadjusting Events After Reporting Period [Line Items]
Senior secured asset-based financing agreed to be transferred		$ 8,000
One-year swingline facility agreed to be extended		$ 750
Expected gains from investment agreement termination			$ 300

Related parties (Narrative) (De

Related parties (Narrative) (Detail) SFr in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CHF (SFr)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CHF (SFr)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)
Related Parties [Line Items]
Payments to external board members	SFr 10.6	$ 11.7	SFr 10.7	$ 11.1	SFr 6.9	$ 7.5
Outstanding deposit balances with key management personnel	SFr 21						$ 24

Related parties (Detail 1)

Related parties (Detail 1) SFr in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CHF (SFr)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CHF (SFr)	Dec. 31, 2021 USD ($)
Remuneration Of Key Management Personnel [Line Items]
Base salaries and other cash payments		$ 35		$ 27		$ 31
Incentive awards - cash		24		17		17
Annual incentive award under DCCP		36		25		26
Employer's contributions to retirement benefit plans		3		2		3
Benefits in kind, fringe benefits (at market value)		1		1		1
Equity-based compensation		63		45		45
Total	SFr 147	$ 162	SFr 114	$ 118	SFr 113	$ 124
Applicable performance award currency exchange rate	0.91	0.91	0.96	0.96	0.92	0.92

Related parties (Detail 2)

Related parties (Detail 2) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Equity Holdings Of Key Management Personnel [Line Items]
Number of shares held by members of the BoD, GEB and parties closely linked to them	5,121,564	3,009,686

Related parties (Detail 3)

Related parties (Detail 3) - Dec. 31, 2023 SFr in Millions, $ in Millions	CHF (SFr)	USD ($)
Loans Advances And Mortgages To Key Management Personnel [Line Items]
Unused uncommitted credit facilities	SFr 12	$ 14

Related parties (Detail 4)

Related parties (Detail 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Outstanding Balances For Related Party Transactions [Line Items]
Carrying amount at the beginning of the year	$ 217	$ 251
of which: unsecured loans and receivables	263	209
Additions	824	402
Reductions	(796)	(438)
Foreign currency translation	26	1
Carrying amount at the end of the year	271	217
Other transactions with associates and joint ventures
Payments to associates and joint ventures for goods and services received	190	138
Fees received for services provided to associates and joint ventures	24	4
Liabilities to associates and joint ventures	106	90
Commitments and contingent liabilities to associates and joint ventures	$ 11	$ 7

Invested assets and net new m_3

Invested assets and net new money (Detail 1) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Invested Assets And Net New Money [Line Items]
Fund assets managed by UBS	$ 624	$ 390
Discretionary assets	1,996	1,464
Other invested assets	3,094	2,127
Total invested assets	5,714	3,981	$ 4,614
of which: double counts	461	340
Net new money	$ 80	76
Asset Management
Invested Assets And Net New Money [Line Items]
Increase to invested assets		24
Increase to new new money		$ 8

Invested assets and net new m_4

Invested assets and net new money (Detail 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Development Of Invested Assets [Line Items]
Total invested assets at the beginning of the year	$ 3,981,000	$ 4,614,000
Net new money	80,000	76,000
Market movements	428,000	(596,000)
Foreign currency translation	91,000	(74,000)
Other effects	1,134,000	(40,000)
of which: acquisitions / (divestments)	1,180,000	(19,000)
of which: Credit Suisse acquisition	1,205	0
Total invested assets at the end of the year	$ 5,714,000	$ 3,981,000

Currency translation rates (Det

Currency translation rates (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
1 CHF
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.19	1.08
Average rate	1.12	1.05	1.09
1 EUR
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.10	1.07
Average rate	1.08	1.05	1.18
1 GBP
Foreign Exchange Rates [Line Items]
Closing exchange rate	1.28	1.21
Average rate	1.25	1.23	1.37
100 JPY
Foreign Exchange Rates [Line Items]
Closing exchange rate	0.71	0.76
Average rate	0.70	0.76	0.91

Main differences between IFRS_2

Main differences between IFRS and Swiss GAAP (Narrative) (Detail)	12 Months Ended
	Dec. 31, 2023
Main Differences Between IFRS And Swiss GAAP [Line Items]
Goodwill, maximum useful life for justified exceptional cases (in years)	10 years

MD&A - Risk management and co_4

MD&A - Risk management and control - Credit Risk (Narrative) (Detail)	12 Months Ended
	Dec. 31, 2023
Mortgage loan portfolio region Americas
Disclosure of Credit Risk [Line Items]
Maximum LTV ratio within the standard approval process for any type of mortgage	80%
Minimum LTV ratio within the standard approval process for any type of mortgage	45%
Mortgage loan portfolio regions EMEA and Asia Pacific
Disclosure of Credit Risk [Line Items]
Maximum LTV ratio within the standard approval process for any type of mortgage	70%
Minimum LTV ratio within the standard approval process for any type of mortgage	30%

MD&A - Risk management and co_5

MD&A - Risk management and control - Credit Risk (Detail)	12 Months Ended
	Dec. 31, 2023
Disclosure of Credit Risk [Line Items]
Internal UBS rating scale and mapping of external ratings [text block]	Internal UBS rating scale and mapping of external ratings Internal UBS rating 1-year PD range in % Description Moody’s Investors Service mapping S&P mapping Fitch mapping 0 and 1 0.00–0.02 Investment grade Aaa AAA AAA 2 0.02–0.05 Aa1 to Aa3 AA+ to AA– AA+ to AA– 3 0.05–0.12 A1 to A3 A+ to A– A+ to A– 4 0.12–0.25 Baa1 to Baa2 BBB+ to BBB BBB+ to BBB 5 0.25–0.50 Baa3 BBB– BBB– 6 0.50–0.80 Sub-investment grade Ba1 BB+ BB+ 7 0.80–1.30 Ba2 BB BB 8 1.30–2.10 Ba3 BB– BB– 9 2.10–3.50 B1 B+ B+ 10 3.50–6.00 B2 B B 11 6.00–10.00 B3 B– B– 12 10.00–17.00 Caa1 to Caa2 CCC+ to CCC CCC+ to CCC 13 >17 Caa3 to C CCC- to C CCC- to C Counterparty is in default Default Defaulted D D

MD&A - Risk management and co_6

MD&A - Risk management and control - Market Risk (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of Market Risk [Line Items]
Confidence level applied for calculating regulatory VaR	99%
Confidence level applied for calculating SVaR	99%
Total effect of economic value of equity for equity, goodwill and real estate	$ 24.3	$ 19.6
Equity instruments held as financial assets at fair value not held for trading and as investments in associates	7,200
Equity instruments held as financial assets at fair value not held for trading	4,800
Investments in associates	$ 2,373	1,101	$ 1,243
Credit Suisse
Disclosure of Market Risk [Line Items]
Confidence level applied for calculating VaR for internal management purpose	98%
Excluding Credit Suisse
Disclosure of Market Risk [Line Items]
Confidence level applied for calculating VaR for internal management purpose	95%
+1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	$ (30.1)	(25)
Additional tier 1 (AT1) capital instruments	$ 4.9	3.4
Parallel up
Disclosure of Market Risk [Line Items]
Regulatory Threshold For Outlier Test Of Tier 1 Capital	15%
Total effect on economic value of equity as per Pillar 3 requirement	$ (5,680.2)	(4,629.1)
Additional tier 1 (AT1) capital instruments	904.6	649.7
Change in tier 1 capital instruments, immediate effect	$ (900)	$ (400)
Percentage change in tier 1 capital instruments	6.10%	7.90%
Percentage change in tier 1 capital instruments, immediate effect	0.90%	0.60%
USD
Disclosure of Market Risk [Line Items]
Total effect of economic value of equity for equity, goodwill and real estate	$ 17.6	$ 14
USD | +1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(26)	(20.4)
USD | Parallel up
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,027.2)	(3,944.3)
CHF
Disclosure of Market Risk [Line Items]
Total effect of economic value of equity for equity, goodwill and real estate	5.6	4.8
CHF | +1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(3.7)	(4)
CHF | Parallel up
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(548.9)	(574.6)
UBS AG | +1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(30.1)	(25)
Additional tier 1 (AT1) capital instruments	4.9	3.4
UBS AG | Parallel up
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,680.2)	(4,629.1)
Additional tier 1 (AT1) capital instruments	904.6	649.7
UBS AG | USD | +1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(26)	(20.4)
UBS AG | USD | Parallel up
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,027.2)	(3,944.3)
UBS AG | CHF | +1 bp
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(3.7)	(4)
UBS AG | CHF | Parallel up
Disclosure of Market Risk [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	$ (548.9)	$ (574.6)

MD&A - Risk management and co_7

MD&A - Risk management and control - Market Risk (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Credit Suisse
Value At Risk [Line Items]
Management VaR	$ 21
Diversification effect	(1)
Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	19	$ 9
Diversification effect	(7)	(5)
Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	1
Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	18	8
Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	19
Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	5
Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		5
Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	20
Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	7	6
Minimum | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Minimum | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1	1
Minimum | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Minimum | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Minimum | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Minimum | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Minimum | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Minimum | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	5	6
Minimum | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	18
Minimum | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Minimum | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Minimum | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3
Minimum | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		3
Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	46
Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	25	18
Maximum | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	16
Maximum | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	2
Maximum | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Maximum | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Maximum | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Maximum | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Maximum | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Maximum | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	23	17
Maximum | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	36
Maximum | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Maximum | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	3
Maximum | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	6
Maximum | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		5
Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	29
Diversification effect	(7)
Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	15	11
Diversification effect	(6)	(5)
Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	10
Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1	1
Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	14	10
Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	23
Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	4
Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		4
Equity prices | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Equity prices | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	11	6
Equity prices | Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	9
Equity prices | Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3	2
Equity prices | Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	17
Equity prices | Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	19	17
Equity prices | Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Diversification effect	(1)
Equity prices | Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	9	6
Diversification effect	(1)	(1)
Equity prices | Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Equity prices | Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Equity prices | Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Equity prices | Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Equity prices | Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Equity prices | Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Equity prices | Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Equity prices | Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	9	6
Equity prices | Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Equity prices | Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Equity prices | Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Equity prices | Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Equity prices | Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		1
Interest rate risk | Credit Suisse
Value At Risk [Line Items]
Management VaR	12
Interest rate risk | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	19	10
Interest rate risk | Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	10
Interest rate risk | Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	9	8
Interest rate risk | Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	40
Interest rate risk | Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	21	18
Interest rate risk | Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	17
Diversification effect	2
Interest rate risk | Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	12	10
Diversification effect	(5)	(3)
Interest rate risk | Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Interest rate risk | Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1	1
Interest rate risk | Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Interest rate risk | Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Interest rate risk | Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Interest rate risk | Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Interest rate risk | Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Interest rate risk | Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	12	9
Interest rate risk | Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Interest rate risk | Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Interest rate risk | Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Interest rate risk | Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	4
Interest rate risk | Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		4
Credit spreads | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Credit spreads | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	7	4
Credit spreads | Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	13
Credit spreads | Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3	4
Credit spreads | Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	34
Credit spreads | Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	19	9
Credit spreads | Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	20
Diversification effect	(9)
Credit spreads | Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	6	5
Diversification effect	(4)	(4)
Credit spreads | Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	10
Credit spreads | Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	1
Credit spreads | Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Credit spreads | Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Credit spreads | Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Credit spreads | Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Credit spreads | Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Credit spreads | Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	5	5
Credit spreads | Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	17
Credit spreads | Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Credit spreads | Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Credit spreads | Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3
Credit spreads | Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		3
Foreign exchange | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Foreign exchange | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	3
Foreign exchange | Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1	2
Foreign exchange | Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	5
Foreign exchange | Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	10	11
Foreign exchange | Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Diversification effect	0
Foreign exchange | Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	3
Diversification effect	(1)	(1)
Foreign exchange | Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Foreign exchange | Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Foreign exchange | Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Foreign exchange | Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	2	3
Foreign exchange | Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	2
Foreign exchange | Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Foreign exchange | Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Foreign exchange | Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		1
Commodity | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3	3
Commodity | Minimum | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Minimum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	1	2
Commodity | Maximum | Credit Suisse
Value At Risk [Line Items]
Management VaR	3
Commodity | Maximum | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	10	7
Commodity | Average | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Diversification effect	0
Commodity | Average | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3	3
Diversification effect	0	0
Commodity | Average | Global Wealth Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Global Wealth Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Commodity | Average | Personal & Corporate Banking | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Personal & Corporate Banking | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Commodity | Average | Asset Management | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Asset Management | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0	0
Commodity | Average | Investment Bank | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Investment Bank | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	3	3
Commodity | Average | Non-core and Legacy | Credit Suisse
Value At Risk [Line Items]
Management VaR	1
Commodity | Average | Non-core and Legacy | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Group Items | Credit Suisse
Value At Risk [Line Items]
Management VaR	0
Commodity | Average | Group Items | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR	$ 0
Commodity | Average | Group Functions | Excluding Credit Suisse
Value At Risk [Line Items]
Management VaR		$ 0

MD&A - Risk management and co_8

MD&A - Risk management and control - Market Risk (Detail 2) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
+1 bp
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	$ (30.1)	$ (25)
Additional tier 1 (AT1) capital instruments	4.9	3.4
Total including AT1 capital instruments	(25.2)	(21.6)
+1 bp | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(3.7)	(4)
+1 bp | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(0.6)	(0.7)
+1 bp | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	0.1	0.1
+1 bp | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(26)	(20.4)
+1 bp | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	0.2	(0.1)
Parallel up
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,680.2)	(4,629.1)
Additional tier 1 (AT1) capital instruments	904.6	649.7
Total including AT1 capital instruments	(4,775.5)	(3,979.4)
Parallel up | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(548.9)	(574.6)
Parallel up | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(119.3)	(117)
Parallel up | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	16.2	33.2
Parallel up | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,027.2)	(3,944.3)
Parallel up | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(0.9)	(26.3)
Parallel down
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	5,875.7	4,841.7
Additional tier 1 (AT1) capital instruments	(1,044.5)	(699.8)
Total including AT1 capital instruments	4,831.3	4,141.9
Parallel down | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	561.8	642.3
Parallel down | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	124.3	148.1
Parallel down | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(29.2)	(45.4)
Parallel down | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	5,216	4,074.9
Parallel down | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2.8	21.9
Steepener
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(1,401.1)	(1,408.7)
Additional tier 1 (AT1) capital instruments	93.4	(46.8)
Total including AT1 capital instruments	(1,307.6)	(1,455.5)
Steepener | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(305.3)	(257)
Steepener | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(13.1)	(92.8)
Steepener | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(11.9)	(28.2)
Steepener | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(1,037)	(1,027.4)
Steepener | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(33.8)	(3.3)
Flattener
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	105.2	344
Additional tier 1 (AT1) capital instruments	109.6	189.9
Total including AT1 capital instruments	214.8	533.9
Flattener | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	189.6	145.4
Flattener | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5)	74.1
Flattener | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	14	32.6
Flattener | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(124.2)	94.4
Flattener | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	30.8	(2.5)
Short-term up
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(2,194.7)	(1,539.2)
Additional tier 1 (AT1) capital instruments	486.3	438.6
Total including AT1 capital instruments	(1,708.4)	(1,100.6)
Short-term up | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(27.3)	(83)
Short-term up | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(39.4)	34.3
Short-term up | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	19.4	42.2
Short-term up | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(2,171.3)	(1,519)
Short-term up | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	23.9	(13.8)
Short-term down
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2,331.9	1,683.1
Additional tier 1 (AT1) capital instruments	(507.8)	(455.5)
Total including AT1 capital instruments	1,824.1	1,227.6
Short-term down | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	26.5	86.9
Short-term down | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	41.8	(33.1)
Short-term down | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(21.8)	(42.5)
Short-term down | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2,312.1	1,658.5
Short-term down | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(26.8)	13.4
UBS AG | +1 bp
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(30.1)	(25)
Additional tier 1 (AT1) capital instruments	4.9	3.4
Total including AT1 capital instruments	(25.2)	(21.6)
UBS AG | +1 bp | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(3.7)	(4)
UBS AG | +1 bp | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(0.6)	(0.7)
UBS AG | +1 bp | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	0.1	0.1
UBS AG | +1 bp | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(26)	(20.4)
UBS AG | +1 bp | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	0.2	(0.1)
UBS AG | Parallel up
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,680.2)	(4,629.1)
Additional tier 1 (AT1) capital instruments	904.6	649.7
Total including AT1 capital instruments	(4,775.5)	(3,979.4)
UBS AG | Parallel up | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(548.9)	(574.6)
UBS AG | Parallel up | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(119.3)	(117)
UBS AG | Parallel up | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	16.2	33.2
UBS AG | Parallel up | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5,027.2)	(3,944.3)
UBS AG | Parallel up | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(0.9)	(26.3)
UBS AG | Parallel down
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	5,875.7	4,841.7
Additional tier 1 (AT1) capital instruments	(1,044.5)	(699.8)
Total including AT1 capital instruments	4,831.3	4,141.9
UBS AG | Parallel down | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	561.8	642.3
UBS AG | Parallel down | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	124.3	148.1
UBS AG | Parallel down | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(29.2)	(45.4)
UBS AG | Parallel down | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	5,216	4,074.9
UBS AG | Parallel down | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2.8	21.9
UBS AG | Steepener
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(1,401.1)	(1,408.7)
Additional tier 1 (AT1) capital instruments	93.4	(46.8)
Total including AT1 capital instruments	(1,307.6)	(1,455.5)
UBS AG | Steepener | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(305.3)	(257)
UBS AG | Steepener | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(13.1)	(92.8)
UBS AG | Steepener | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(11.9)	(28.2)
UBS AG | Steepener | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(1,037)	(1,027.4)
UBS AG | Steepener | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(33.8)	(3.3)
UBS AG | Flattener
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	105.2	344
Additional tier 1 (AT1) capital instruments	109.6	189.9
Total including AT1 capital instruments	214.8	533.9
UBS AG | Flattener | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	189.6	145.4
UBS AG | Flattener | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(5)	74.1
UBS AG | Flattener | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	14	32.6
UBS AG | Flattener | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(124.2)	94.4
UBS AG | Flattener | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	30.8	(2.5)
UBS AG | Short-term up
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(2,194.7)	(1,539.2)
Additional tier 1 (AT1) capital instruments	486.3	438.6
Total including AT1 capital instruments	(1,708.4)	(1,100.6)
UBS AG | Short-term up | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(27.3)	(83)
UBS AG | Short-term up | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(39.4)	34.3
UBS AG | Short-term up | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	19.4	42.2
UBS AG | Short-term up | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(2,171.3)	(1,519)
UBS AG | Short-term up | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	23.9	(13.8)
UBS AG | Short-term down
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2,331.9	1,683.1
Additional tier 1 (AT1) capital instruments	(507.8)	(455.5)
Total including AT1 capital instruments	1,824.1	1,227.6
UBS AG | Short-term down | CHF
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	26.5	86.9
UBS AG | Short-term down | EUR
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	41.8	(33.1)
UBS AG | Short-term down | GBP
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	(21.8)	(42.5)
UBS AG | Short-term down | USD
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	2,312.1	1,658.5
UBS AG | Short-term down | Other
Interest Rate Sensitivity Of Banking Book [Line Items]
Total effect on economic value of equity as per Pillar 3 requirement	$ (26.8)	$ 13.4

MD&A - Capital management (Narr

MD&A - Capital management (Narrative) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Capital Management [Line Items]
Increase (decrease) in CET1 capital	$ 33,000
Operating profit / (loss) before tax	28,739	$ 9,604	$ 9,484
Operating profit / (loss) before tax excluding negative goodwill	1,000
Increase (decrease) in CET1 capital through foreign currency translation effects before tax	1,500
Increase (decrease) in CET1 capital through deferred tax assets on temporary differences	1,900
Increase (decrease) in CET1 capital through accruals for proposed dividends	2,200
Increase (decrease) in CET1 capital through changes in compensation- and own share-related capital components	300
Current tax expense / (benefit)	1,600
Increase (decrease) in CET1 capital through share repurchases under share repurchase program	(1,300)
Loss-absorbing AT1 capital	13,900
Increase (decrease) in loss-absorbing AT1 capital	1,000
Decrease in AT1 capital through call of capital instruments	3,000
Increase in AT1 capital through issuance of capital instruments	3,500
TLAC-eligible senior unsecured debt included in gone concern loss-absorbing capacity	106,600
Increase (decrease) in gone concern loss-absorbing capacity	60,100
Gone concern loss-absorbing capacity	107,100
Credit Suisse
Disclosure Of Capital Management [Line Items]
Operating profit / (loss) before tax	27,748
Increase (decrease) in CET1 capital through business combination	34,900
Transitional CET1 purchase price allocation adjustments, net of tax, included in increase of CET1 through business combination	5,000
Increase (decrease) in CET1 capital through amortization of transitional CET1 purchase price allocation adjustments, net of tax	$ 700

MD&A - Capital management (Deta

MD&A - Capital management (Detail 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation Of IFRS Equity To Swiss SRB Common Equity Tier One Capital [Line Items]
Total equity under IFRS Accounting Standards	$ 86,639	$ 57,218	$ 61,002	$ 59,765
Equity attributable to non-controlling interests	(531)	(342)
Defined benefit plans, net of tax	(965)	(311)
Deferred tax assets recognized for tax loss carry-forwards	(3,039)	(4,077)
Deferred tax assets on temporary differences, excess over threshold		(64)
Goodwill, net of tax	(5,750)	(5,754)
Intangible assets, net of tax	(894)	(150)
Compensation-related components (not recognized in net profit)	(2,186)	(2,287)
Expected losses on advanced internal ratings-based portfolio less provisions	(713)	(471)
Unrealized (gains) / losses from cash flow hedges, net of tax	3,109	4,234
Own credit related to (gains) / losses on financial liabilities measured at fair value that existed at the balance sheet date, net of tax	1,291	(523)
Own credit related to gains / losses on derivative financial instruments that existed at the balance sheet date	(89)	(105)
Prudential valuation adjustments	(368)	(201)
Accruals for proposed dividends to shareholders	(2,240)	(1,683)
Other	3	(29)
Total common equity tier 1 capital	78,485	45,457
Goodwill related to significant investments in financial institutions	$ 20	$ 20

MD&A - Capital management (De_2

MD&A - Capital management (Detail 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Comparison Reconciliation Of IFRS Equity To Swiss SRB Common Equity Tier One Capital [Line Items]
Total equity under IFRS Accounting Standards	$ 86,639	$ 57,218	$ 61,002	$ 59,765
Equity attributable to non-controlling interests	(531)	(342)
Defined benefit plans, net of tax	(965)	(311)
Deferred tax assets recognized for tax loss carry-forwards	(3,039)	(4,077)
Deferred tax assets for unused tax credits	(97)
Deferred tax assets on temporary differences, excess over threshold		(64)
Goodwill, net of tax	(5,750)	(5,754)
Intangible assets, net of tax	(894)	(150)
Compensation-related components (not recognized in net profit)	(2,186)	(2,287)
Expected losses on advanced internal ratings-based portfolio less provisions	(713)	(471)
Unrealized (gains) / losses from cash flow hedges, net of tax	3,109	4,234
Own credit related to (gains) / losses on financial liabilities measured at fair value that existed at the balance sheet date, net of tax	1,291	(523)
Own credit related to gains / losses on derivative financial instruments that existed at the balance sheet date	(89)	(105)
Prudential valuation adjustments	(368)	(201)
Accruals for proposed dividends to shareholders	(2,240)	(1,683)
Other	3	(29)
Total common equity tier 1 capital	78,485	$ 45,457
Credit Suisse
Comparison Reconciliation Of IFRS Equity To Swiss SRB Common Equity Tier One Capital [Line Items]
Transitional CET1 purchase price allocation adjustments, net of tax	$ 4,316

MD&A - UBS shares (Narrative) (

MD&A - UBS shares (Narrative) (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 shares	Dec. 31, 2023 SFr / shares	Dec. 31, 2020 shares
Disclosure of Shares [Line Items]
Par value of shares | $ / shares	$ 0.10
Equity attributable to shareholders | $	$ 86,108	$ 56,876
Shares issued	3,462,087,722	3,524,635,722	3,702,422,995		3,859,055,395
Shares issued / (canceled)	(62,548,000)	(177,787,273)	(156,632,400)
Par value per share before alignment with entity's presentation currency | SFr / shares				SFr 0.10

Uncategorized Items - ubs-20231

Label	Element	Value
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 52,000,000
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 61,000,000
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 33,000,000
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 31,000,000
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 33,000,000
Loans And Leases Receivable Related Parties	ubs_LoansAndLeasesReceivableRelatedParties	SFr 34,000,000