Credit Suisse 6-K 29 Jul 21 2021 Q2 Current report (foreign) Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2021
Entity Information [Line Items]
Document Type	6-K
Document Period End Date	Jun. 30, 2021
Entity Registrant Name	Credit Suisse Group AG
Entity Central Index Key	0001159510
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Bank
Entity Information [Line Items]
Document Type	6-K
Document Period End Date	Jun. 30, 2021
Entity Registrant Name	Credit Suisse AG
Entity Central Index Key	0001053092
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2

Consolidated statements of oper

Consolidated statements of operations - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest and dividend income	SFr 2,879	SFr 3,055	SFr 3,589	SFr 5,934	SFr 7,884
Interest expense	(1,463)	(1,401)	(2,019)	(2,864)	(4,780)
Net interest income	1,416	1,654	1,570	3,070	3,104
Commissions and fees	3,158	3,737	2,880	6,895	5,807
Trading revenues	153	1,811	1,254	1,964	2,181
Other revenues	376	372	490	748	878
Net revenues	5,103	7,574	6,194	12,677	11,970
Provision for credit losses	(25)	4,394	296	4,369	864
Compensation and benefits	2,356	2,207	2,594	4,563	4,910
General and administrative expenses	1,589	1,376	1,440	2,965	2,786
Commission expenses	325	329	313	654	658
Restructuring expenses	45	25		70
Total other operating expenses	1,959	1,730	1,753	3,689	3,444
Total operating expenses	4,315	3,937	4,347	8,252	8,354
Income/(loss) before taxes	813	(757)	1,551	56	2,752
Income tax expense/(benefit)	566	(526)	391	40	281
Net income/(loss)	247	(231)	1,160	16	2,471
Net income/(loss) attributable to noncontrolling interests	(6)	21	(2)	15	(5)
Net income/(loss) attributable to shareholders	SFr 253	SFr (252)	SFr 1,162	SFr 1	SFr 2,476
Basic earnings per share (CHF)
Basic earnings/(loss) per share (in CHF per share)	SFr 0.10	SFr (0.10)	SFr 0.47	SFr 0	SFr 1
Diluted earnings per share (CHF)
Diluted earnings/(loss) per share (in CHF per share)	SFr 0.10	SFr (0.10)	SFr 0.46	SFr 0	SFr 0.98
Bank
Interest and dividend income				SFr 5,908	SFr 7,867
Interest expense				(2,795)	(4,763)
Net interest income				3,113	3,104
Commissions and fees				6,926	5,816
Trading revenues				1,924	2,105
Other revenues				919	990
Net revenues				12,882	12,015
Provision for credit losses				4,373	860
Compensation and benefits				4,096	4,420
General and administrative expenses				3,664	3,495
Commission expenses				654	658
Restructuring expenses				80
Total other operating expenses				4,398	4,153
Total operating expenses				8,494	8,573
Income/(loss) before taxes				15	2,582
Income tax expense/(benefit)				6	244
Net income/(loss)				9	2,338
Net income/(loss) attributable to noncontrolling interests				(103)	4
Net income/(loss) attributable to shareholders				SFr 112	SFr 2,334

Consolidated statements of comp

Consolidated statements of comprehensive income - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Comprehensive income
Net income/(loss)	SFr 247	SFr (231)	SFr 1,160	SFr 16	SFr 2,471
Gains/(losses) on cash flow hedges	(41)	(103)	18	(144)	243
Foreign currency translation	(472)	2,005	(433)	1,533	(1,029)
Unrealized gains/(losses) on securities	0	0	(18)	0	(20)
Actuarial gains/(losses)	(11)	65	73	54	146
Net prior service cost	(24)	(24)	(34)	(48)	(68)
Gains/(losses) on liabilities related to credit risk	(483)	551	(2,658)	68	1,692
Other comprehensive income/(loss), net of tax	(1,031)	2,494	(3,052)	1,463	964
Comprehensive income/(loss)	(784)	2,263	(1,892)	1,479	3,435
Comprehensive income/(loss) attributable to noncontrolling interests	(7)	32	(2)	25	(6)
Comprehensive income/(loss) attributable to shareholders	SFr (777)	SFr 2,231	SFr (1,890)	1,454	3,441
Bank
Comprehensive income
Net income/(loss)				9	2,338
Gains/(losses) on cash flow hedges				(143)	243
Foreign currency translation				1,510	(1,010)
Unrealized gains/(losses) on securities				0	(20)
Actuarial gains/(losses)				(87)	6
Gains/(losses) on liabilities related to credit risk				72	1,614
Other comprehensive income/(loss), net of tax				1,352	833
Comprehensive income/(loss)				1,361	3,171
Comprehensive income/(loss) attributable to noncontrolling interests				(68)	(9)
Comprehensive income/(loss) attributable to shareholders				SFr 1,429	SFr 3,180

Consolidated balance sheets

Consolidated balance sheets - CHF (SFr) SFr in Millions		Jun. 30, 2021		Mar. 31, 2021		Dec. 31, 2020
Assets
Cash and due from banks		SFr 146,358	[1]	SFr 133,285		SFr 139,112	[1]
of which reported at fair value		141		91		525
Interest-bearing deposits with banks		1,313		1,447		1,298
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		94,645		91,121		79,133
of which reported at fair value		69,465		67,268		57,994
Securities received as collateral, at fair value		38,686		56,494		50,773
of which encumbered		17,349		28,878		27,614
Trading assets, at fair value		130,505		157,139		157,338
of which encumbered		37,709		50,100		54,990
Total investment securities		794		614		607
of which reported at fair value		794		614		607
Other investments		4,578		5,640		5,412
of which reported at fair value		2,747		3,937		3,794
Net loans		299,844		304,188		291,908
of which reported at fair value		11,101		11,827		11,408
of which encumbered		79		0		179
Allowance for credit losses		(1,412)		(1,527)		(1,536)
Goodwill		4,588		4,644		4,426
Other intangible assets		245		239		237
of which reported at fair value		189		181		180
Brokerage receivables		33,072		47,682		35,941
Brokerage receivables, Allowance for credit losses		(4,429)		(36)		(1)
Other assets		42,171		48,902		39,637
of which reported at fair value		10,342		15,033		8,373
of which encumbered		17		0		167
of which loans held-for-sale reported at lower of cost and market value (amortized cost base)		467		494		650
Other assets, Allowance for credit losses		(41)		(4,447)		(43)
Total assets		796,799		851,395		805,822
Liabilities and equity
Due to banks		20,948		19,422		16,423
of which reported at fair value		330		800		413
Customer deposits		397,298		406,069		390,921
of which reported at fair value		3,921		4,221		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		20,924		22,853		23,851
of which reported at fair value		10,983		9,591		13,594
Obligation to return securities received as collateral, at fair value		38,686		56,494		50,773
Trading liabilities, at fair value		32,972		47,740		45,871
Short-term borrowings		22,366		24,887		20,868
of which reported at fair value		8,554		11,020		10,740
Long-term debt		170,227		170,453		161,087
of which reported at fair value		69,436		72,312		70,976
Brokerage payables		20,432		26,890		21,653
Other liabilities		29,071		31,703		31,434
of which reported at fair value		7,911		7,913		7,780
Total liabilities		752,924		806,511		762,881
Common shares		106		98		98
Additional paid-in capital		34,633		33,523		33,323
Retained earnings		32,715		32,582		32,834
Treasury shares, at cost		(2,177)		(946)		(428)
Accumulated other comprehensive income/(loss)		(21,697)		(20,667)		(23,150)
Total shareholders' equity		43,580		44,590		42,677
Noncontrolling interests		295		294		264
Total equity		43,875		44,884		42,941
Total liabilities and equity		SFr 796,799		SFr 851,395		SFr 805,822
Additional share information
Par value (in CHF per share)		SFr 0.04		SFr 0.04		SFr 0.04
Authorized shares (in shares)	[2]	3,100,747,720		3,100,747,720		3,100,747,720
Issued shares (in shares)		2,650,747,720		2,447,747,720		2,447,747,720
Treasury shares (in shares)		239,479,336		83,737,482		41,602,841
Common shares outstanding (in shares)		2,411,268,384	[3]	2,364,010,238	[4]	2,406,144,879
Consolidated VIEs
Assets
Cash and due from banks		SFr 247		SFr 90		SFr 90
Trading assets, at fair value		1,916		2,146		2,164
Other investments		1,231		1,273		1,251
Net loans		686		772		900
Other assets		1,488		1,581		1,876
Total assets		5,568				6,281
Liabilities and equity
Customer deposits		1		0		1
Trading liabilities, at fair value		9		11		10
Short-term borrowings		6,484		4,377		4,178
Long-term debt		1,319		1,568		1,746
Other liabilities		237		SFr 240		208
Total liabilities		8,050				6,143
Bank
Assets
Cash and due from banks	[5]	145,367				138,207
of which reported at fair value		141				525
Interest-bearing deposits with banks		1,245				1,230
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		94,645				79,133
of which reported at fair value		69,465				57,994
Securities received as collateral, at fair value		38,686				50,773
of which encumbered		17,349				27,614
Trading assets, at fair value		130,684				157,511
of which encumbered		37,709				54,990
Total investment securities		792				605
of which reported at fair value		792				605
Other investments		4,543				5,379
of which reported at fair value		2,746				3,793
Net loans		308,159				300,341
of which reported at fair value		11,101				11,408
of which encumbered		79				179
Allowance for credit losses		(1,411)				(1,535)
Goodwill		3,901				3,755
Other intangible assets		245				237
of which reported at fair value		189				180
Brokerage receivables		33,074				35,943
Brokerage receivables, Allowance for credit losses		(4,429)				(1)
Other assets		38,779				36,574
of which reported at fair value		10,342				8,373
of which encumbered		17				167
of which loans held-for-sale reported at lower of cost and market value (amortized cost base)		467				650
Other assets, Allowance for credit losses		(39)				(41)
Total assets		800,120				809,688
Liabilities and equity
Due to banks		20,948				16,420
of which reported at fair value		330				413
Customer deposits		398,323				392,039
of which reported at fair value		3,921				4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		21,020				23,944
of which reported at fair value		11,080				13,688
Obligation to return securities received as collateral, at fair value		38,686				50,773
Trading liabilities, at fair value		32,971				45,871
Short-term borrowings		26,219				21,308
of which reported at fair value		8,554				10,740
Long-term debt		164,292				160,279
of which reported at fair value		68,486				70,243
Brokerage payables		20,434				21,655
Other liabilities		27,935				30,340
of which reported at fair value		7,891				7,756
Total liabilities		750,828				762,629
Common shares		4,400				4,400
Additional paid-in capital		47,111				46,232
Retained earnings		15,973				15,871
Accumulated other comprehensive income/(loss)		(18,922)				(20,239)
Total shareholders' equity		48,562				46,264
Noncontrolling interests		730				795
Total equity		49,292				47,059
Total liabilities and equity		SFr 800,120				SFr 809,688
Additional share information
Par value (in CHF per share)	[6]	SFr 1				SFr 1
Issued shares (in shares)	[6]	4,399,680,200				4,399,680,200
Common shares outstanding (in shares)	[6]	4,399,680,200				4,399,680,200
Bank | Consolidated VIEs
Assets
Cash and due from banks		SFr 247				SFr 90
Trading assets, at fair value		1,916				2,164
Other investments		1,231				1,251
Net loans		686				900
Other assets		1,454				1,858
Total assets		5,534				6,263
Liabilities and equity
Customer deposits		1				1
Trading liabilities, at fair value		9				10
Short-term borrowings		4,729				4,178
Long-term debt		1,319				1,746
Other liabilities		231				207
Total liabilities		SFr 6,289				SFr 6,142
[1]	Includes restricted cash.
[2]	Includes issued shares and unissued shares (conditional, conversion and authorized capital).
[3]	At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 450,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,524,164 of these shares were reserved for capital instruments.
[4]	At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 653,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,193,477 of these shares were reserved for capital instruments.
[5]	Includes restricted cash.
[6]	The Bank's total share capital is fully paid and consists of 4,399,680,200 registered shares as of June 30, 2021. Each share is entitled to one vote. The Bank has no warrants on its own shares outstanding.

Consolidated statements of chan

Consolidated statements of changes in equity - CHF (SFr) SFr in Millions		Total		Cumulative Effect, Period of Adoption, Adjustment [Member]	Total shareholders' equity	Total shareholders' equityCumulative Effect, Period of Adoption, Adjustment [Member]	Common shares	Additional paid-in capital	Retained earnings	Retained earningsCumulative Effect, Period of Adoption, Adjustment [Member]	Treasury shares, at cost		Accumulated other comprehensive income	Noncontrolling interests		Bank		BankCumulative Effect, Period of Adoption, Adjustment [Member]	BankTotal shareholders' equity	BankTotal shareholders' equityCumulative Effect, Period of Adoption, Adjustment [Member]	BankCommon shares	BankAdditional paid-in capital	BankRetained earnings	BankRetained earningsCumulative Effect, Period of Adoption, Adjustment [Member]	BankTreasury shares, at cost		BankAccumulated other comprehensive income	BankNoncontrolling interests
Balance at Dec. 31, 2019		SFr 43,714		SFr (132)	SFr 43,644	SFr (132)	SFr 102	SFr 34,661	SFr 30,634	SFr (132)	SFr (1,484)		SFr (20,269)	SFr 70		SFr 46,763		SFr (132)	SFr 46,120	SFr (132)	SFr 4,400	SFr 45,774	SFr 13,492	SFr (132)	SFr 0		SFr (17,546)	SFr 643
Increase (decrease) in shareholders' equity
Purchase of subsidiary shares from noncontrolling interests, not changing ownership		(8)												(8)		(8)												(8)
Sale of subsidiary shares to noncontrolling interests, not changing ownership		5												5		5												5
Net income/(loss)		2,471			2,476				2,476					(5)		2,338			2,334				2,334					4
Total other comprehensive income/(loss), net of tax		964			965								965	(1)		833			846								846	(13)
Sale of treasury shares		4,003			4,003			(33)			4,036
Repurchase of treasury shares		(4,499)			(4,499)						(4,499)
Share-based compensation, net of tax		421			421			(135)			556					(1)			(1)			(1)
Dividends on share-based compensation, net of tax																(18)			(18)			(18)
Dividends paid		(358)			(358)				(170)							(10)			(10)			(10)
Dividends paid out of reserves from capital contributions								(188)
Change in scope of consolidation, net		249												249		249												249
Other		21			15			15						6		21			15			15						6
Balance at Jun. 30, 2020		46,851			46,535		102	34,320	32,808		(1,391)		(19,304)	316		50,040			49,154		4,400	45,760	15,694		0		(16,700)	886
Balance at Mar. 31, 2020		48,773			48,675		102	34,891	31,816		(1,882)		(16,252)	98
Increase (decrease) in shareholders' equity
Purchase of subsidiary shares from noncontrolling interests, not changing ownership		(4)												(4)
Sale of subsidiary shares to noncontrolling interests, not changing ownership		3												3
Net income/(loss)		1,160			1,162				1,162					(2)
Total other comprehensive income/(loss), net of tax		(3,052)			(3,052)								(3,052)
Sale of treasury shares		1,512			1,512			3			1,509
Repurchase of treasury shares		(1,533)			(1,533)						(1,533)
Share-based compensation, net of tax		129			129			(386)			515
Dividends paid		(358)			(358)				(170)
Dividends paid out of reserves from capital contributions								(188)
Change in scope of consolidation, net		215												215
Other		6												6
Balance at Jun. 30, 2020		46,851			46,535		102	34,320	32,808		(1,391)		(19,304)	316		50,040			49,154		4,400	45,760	15,694		0		(16,700)	886
Balance at Dec. 31, 2020		42,941			42,677		98	33,323	32,834		(428)		(23,150)	264		47,059			46,264		4,400	46,232	15,871		0	[1]	(20,239)	795
Increase (decrease) in shareholders' equity
Purchase of subsidiary shares from noncontrolling interests, not changing ownership		(7)												(7)
Sale of subsidiary shares to noncontrolling interests, not changing ownership		5												5
Net income/(loss)		(231)			(252)				(252)					21
Total other comprehensive income/(loss), net of tax		2,494			2,483								2,483	11
Sale of treasury shares		6,766			6,766			(4)			6,770
Repurchase of treasury shares		(7,335)			(7,335)						(7,335)
Share-based compensation, net of tax		251			251			204			47
Balance at Mar. 31, 2021		44,884			44,590		98	33,523	32,582		(946)		(20,667)	294
Balance at Dec. 31, 2020		42,941			42,677		98	33,323	32,834		(428)		(23,150)	264		47,059			46,264		4,400	46,232	15,871		0	[1]	(20,239)	795
Increase (decrease) in shareholders' equity
Purchase of subsidiary shares from noncontrolling interests, not changing ownership		(23)	[2],[3]											(23)	[2],[3]	(24)	[4],[5]											(24)	[4],[5]
Sale of subsidiary shares to noncontrolling interests, not changing ownership		10	[3]											10	[3]	10	[5]											10	[5]
Net income/(loss)		16			1				1					15		9			112				112					(103)
Total other comprehensive income/(loss), net of tax		1,463			1,453								1,453	10		1,352			1,317								1,317	35
Issuance of common shares		0					8	1,748			(1,756)	[6]
Other activities relating to the issuance of common shares		1			1						1
Sale of treasury shares		11,663			11,663			(14)			11,677
Repurchase of treasury shares		(12,279)			(12,279)						(12,279)
Share-based compensation, net of tax		349			349			(259)			608					(175)			(175)			(175)
Dividends on share-based compensation, net of tax																(15)			(15)			(15)
Dividends paid		(257)			(256)				(120)							(11)			(10)				(10)
Dividends paid out of reserves from capital contributions	[7]							(136)
Cash dividends paid to noncontrolling interest holders														(1)														(1)
Change in scope of consolidation, net		20												20		20												20
Other		(29)			(29)			(29)								1,067			1,069			1,069						(2)
Balance at Jun. 30, 2021		43,875			43,580		106	34,633	32,715		(2,177)		(21,697)	295		49,292			48,562		4,400	47,111	15,973		0	[1]	(18,922)	730
Balance at Mar. 31, 2021		44,884			44,590		98	33,523	32,582		(946)		(20,667)	294
Increase (decrease) in shareholders' equity
Purchase of subsidiary shares from noncontrolling interests, not changing ownership	[8],[9]	(16)												(16)
Sale of subsidiary shares to noncontrolling interests, not changing ownership	[9]	5												5
Net income/(loss)		247			253				253					(6)
Total other comprehensive income/(loss), net of tax		(1,031)			(1,030)								(1,030)	(1)
Issuance of common shares		0					8	1,748			(1,756)	[10]
Other activities relating to the issuance of common shares		1			1						1
Sale of treasury shares		4,897			4,897			(10)			4,907
Repurchase of treasury shares		(4,944)			(4,944)						(4,944)
Share-based compensation, net of tax		98			98			(463)			561
Dividends paid		(257)			(256)				(120)
Dividends paid out of reserves from capital contributions	[11]							(136)
Cash dividends paid to noncontrolling interest holders														(1)
Change in scope of consolidation, net		20												20
Other		(29)			(29)			(29)
Balance at Jun. 30, 2021		SFr 43,875			SFr 43,580		SFr 106	SFr 34,633	SFr 32,715		SFr (2,177)		SFr (21,697)	SFr 295		SFr 49,292			SFr 48,562		SFr 4,400	SFr 47,111	SFr 15,973		SFr 0	[1]	SFr (18,922)	SFr 730
[1]	Reflects Credit Suisse Group shares which are reported as treasury shares. Those shares are held to economically hedge share award obligations.
[2]	Distributions to owners in funds include the return of original capital invested and any related dividends.
[3]	Transactions with and without ownership changes related to fund activity are all displayed under "not changing ownership".
[4]	Distributions to owners in funds include the return of original capital invested and any related dividends.
[5]	Transactions with and without ownership changes related to fund activity are all displayed under "not changing ownership".
[6]	Reflects the issuance of mandatory convertible notes in May 2021.
[7]	Paid out of capital contribution reserves.
[8]	Distributions to owners in funds include the return of original capital invested and any related dividends.
[9]	Transactions with and without ownership changes related to fund activity are all displayed under "not changing ownership".
[10]	Reflects the issuance of mandatory convertible notes in May 2021.
[11]	Paid out of reserves from capital contributions.

Consolidated statements of cash

Consolidated statements of cash flows - CHF (SFr) SFr in Millions		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020
Operating activities of continuing operations
Net income/(loss)		SFr 16	SFr 2,471
Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities of continuing operations
Impairment, depreciation and amortization		706	660
Provision for credit losses		4,369	864
Deferred tax provision/(benefit)		(302)	134
Valuation adjustments related to long-term debt		1,909	266
Share of net income/(loss) from equity method investments		(73)	(42)
Trading assets and liabilities, net		20,519	458
(Increase)/decrease in other assets		(839)	(12,759)
Increase/(decrease) in other liabilities		(5,389)	5,355
Other, net		(241)	38
Total adjustments		20,659	(5,026)
Net cash provided by/(used in) operating activities		20,675	(2,555)
Investing activities of continuing operations
(Increase)/decrease in interest-bearing deposits with banks		9	(411)
(Increase)/decrease in central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		(11,851)	(899)
Purchase of investment securities		(213)	(259)
Proceeds from sale of investment securities		0	626
Maturities of investment securities		25	51
Investments in subsidiaries and other investments		(288)	(71)
Proceeds from sale of other investments		940	413
(Increase)/decrease in loans		(6,785)	(2,623)
Proceeds from sale of loans		2,216	2,319
Capital expenditures for premises and equipment and other intangible assets		(622)	(553)
Proceeds from sale of premises and equipment and other intangible assets		2	23
Other, net		49	88
Net cash provided by/(used in) investing activities		(16,518)	(1,296)
Financing activities of continuing operations
Increase/(decrease) in due to banks and customer deposits		3,512	9,657
Increase/(decrease) in short-term borrowings		170	(152)
Increase/(decrease) in central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		(3,931)	3,718
Issuances of long-term debt		29,405	41,339
Repayments of long-term debt		(27,321)	(19,814)
Sale of treasury shares		11,664	4,003
Repurchase of treasury shares		(12,279)	(4,499)
Dividends paid/capital repayments		(257)	(358)
Other, net		269	991
Net cash provided by/(used in) financing activities		1,232	34,885
Effect of exchange rate changes on cash and due from banks
Effect of exchange rate changes on cash and due from banks		1,857	(843)
Net increase/(decrease) in cash and due from banks
Net increase/(decrease) in cash and due from banks		7,246	30,191
Cash and due from banks at beginning of period	[1]	139,112	101,879
Cash and due from banks at end of period	[1]	146,358	132,070
Cash paid for income taxes and interest
Cash paid for income taxes		429	464
Cash paid for interest		3,223	5,066
Bank
Operating activities of continuing operations
Net income/(loss)		9	2,338
Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities of continuing operations
Impairment, depreciation and amortization		623	580
Provision for credit losses		4,373	860
Deferred tax provision/(benefit)		(322)	110
Valuation adjustments related to long-term debt		2,050	441
Share of net income/(loss) from equity method investments		(72)	(41)
Trading assets and liabilities, net		20,552	377
(Increase)/decrease in other assets		(517)	(12,052)
Increase/(decrease) in other liabilities		(5,441)	5,053
Other, net		(234)	(387)
Total adjustments		21,012	(5,059)
Net cash provided by/(used in) operating activities		21,021	(2,721)
Investing activities of continuing operations
(Increase)/decrease in interest-bearing deposits with banks		9	(471)
(Increase)/decrease in central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		(11,851)	(899)
Purchase of investment securities		(213)	(259)
Proceeds from sale of investment securities		0	626
Maturities of investment securities		25	51
Investments in subsidiaries and other investments		(288)	(71)
Proceeds from sale of other investments		949	413
(Increase)/decrease in loans		(6,636)	(3,002)
Proceeds from sale of loans		2,216	2,319
Capital expenditures for premises and equipment and other intangible assets		(550)	(484)
Proceeds from sale of premises and equipment and other intangible assets		2	23
Other, net		51	88
Net cash provided by/(used in) investing activities		(16,286)	(1,666)
Financing activities of continuing operations
Increase/(decrease) in due to banks and customer deposits		3,411	9,595
Increase/(decrease) in short-term borrowings		3,583	401
Increase/(decrease) in central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		(3,932)	3,707
Issuances of long-term debt		24,155	41,092
Repayments of long-term debt		(27,321)	(19,814)
Dividends paid/capital repayments		(11)	(10)
Other, net		719	459
Net cash provided by/(used in) financing activities		604	35,430
Effect of exchange rate changes on cash and due from banks
Effect of exchange rate changes on cash and due from banks		1,821	(795)
Net increase/(decrease) in cash and due from banks
Net increase/(decrease) in cash and due from banks		7,160	30,248
Cash and due from banks at beginning of period	[2]	138,207	101,044
Cash and due from banks at end of period	[2]	145,367	131,292
Cash paid for income taxes and interest
Cash paid for income taxes		417	443
Cash paid for interest		SFr 3,150	SFr 4,954
[1]	Includes restricted cash.
[2]	Includes restricted cash.

Summary of significant accounti

Summary of significant accounting policies	6 Months Ended
	Jun. 30, 2021
Summary of significant accounting policies	1 Summary of significant accounting policies Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse Group AG (the Group) are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020 included in the Credit Suisse Annual Report 2020. > Refer to “Note 1 – Summary of significant accounting policies” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for a description of the Group’s significant accounting policies. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The 1Q21 consolidated statements of operations and comprehensive income, the 1Q21 consolidated balance sheet and the 1Q21 consolidated statement of changes in equity have been added for the convenience of the reader and are not a required presentation under US GAAP. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Bank
Summary of significant accounting policies	1 Summary of significant accounting policies Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse AG (the Bank), the direct bank subsidiary of Credit Suisse Group AG (the Group), are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Credit Suisse Group AG & Credit Suisse AG Annual Report 2020 (Credit Suisse Annual Report 2020). In addition, these condensed consolidated financial statements make references to the Group’s condensed consolidated financial statements in its 2Q21 and 1Q21 Financial Reports and the Group’s consolidated financial statements in the Credit Suisse Annual Report 2020. > Refer to “Note 1 – Summary of significant accounting policies” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for a description of the Bank’s significant accounting policies. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Recently issued accounting stan

Recently issued accounting standards	6 Months Ended
	Jun. 30, 2021
Recently issued accounting standards	2 Recently issued accounting standards Recently adopted accounting standards The following provides the most relevant recently adopted accounting standards. > Refer to “Note 2 – Recently issued accounting standards” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for a description of accounting standards adopted in 2020. ASC Topic 740 – Income Taxes In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2019-12, “Simplifying the Accounting for Income Taxes” (ASU 2019-12), an update to Accounting Standards Codification (ASC) Topic 740 – Income Taxes. The amendments in ASU 2019-12 eliminated certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the accounting for basis differences when there are changes in foreign ownership. In addition, ASU 2019-12 included clarification and simplification of other aspects of the accounting for income taxes. The amendments were effective for annual reporting periods beginning after December 15, 2020 and for the interim periods within those annual reporting periods. Early adoption was permitted, including in an interim period. The adoption of ASU 2019-12 on January 1, 2021 did not have a material impact on the Group’s financial position, results of operations or cash flows. ASC Topic 848 – Reference Rate Reform In March 2020, the FASB issued ASU 2020-04, “Facilitation of the Effects of Reference Rate Reform on Financial Reporting” (ASU 2020-04), creating ASC Topic 848 - Reference Rate Reform. The amendments in ASU 2020-04 provided optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The amendments were elective and applied to contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate (LIBOR) or other reference rates expected to be discontinued because of reference rate reform. In January 2021, the FASB issued ASU 2021-01, “Reference Rate Reform, Scope” (ASU 2021-01), which expands the scope of ASC Topic 848 to apply certain optional expedients for contract modifications and hedge accounting provided in ASU 2020-04 to derivative instruments that use an interest rate for margining, discounting, or contract price alignment that is modified for reference rate reform. The guidance also applied to derivatives that do not reference LIBOR or other reference rates that are expected to be discontinued. The amendments may be applied as of March 12, 2020 through December 31, 2022. The Group elected to apply ASU 2020-04 and retrospectively apply ASU 2021-01 during 2020. These elections did not have a material impact on the Group’s financial position, results of operations and cash flows.
Bank
Recently issued accounting standards	2 Recently issued accounting standards > Refer to “Note 2 – Recently issued accounting standards” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for the most recently adopted accounting standards and standards to be adopted in future periods. The impact on the Bank’s and Group’s financial condition, results of operations or cash flows was or is expected to be identical.

Business developments

Business developments	6 Months Ended
	Jun. 30, 2021
Business developments	3 Business developments and subsequent events Business developments Allfunds Group initial public offering As previously disclosed, during 2019 and 2020 Credit Suisse held an equity investment in Allfunds Group following the transfer of the Group’s open architecture investment fund platform Credit Suisse InvestLab AG to Allfunds Group. On April 23, 2021, Allfunds Group announced a successful IPO on the Euronext Amsterdam exchange with an initial market capitalization of EUR 7.24 billion on the day of the listing. Following the IPO, the Group holds an equity interest in Allfunds Group of 9.4% 14.0% 9.4% Archegos Capital Management As previously reported, the Group recorded a provision for credit losses of CHF 4,430 million in 1Q21 in respect of the failure by Archegos to meet its margin commitments. Certain Group subsidiaries were notified by the fund that it would be unable to return margin advances previously extended and recognized as collateral receivable by the Group. Following the failure of the fund, the Group initiated the process of exiting the fund positions and that process is now complete. Losses related to the exiting of fund positions that were in excess of the margin advances previously extended and recognized as collateral receivable were included in trading revenues. The Group has incurred additional losses with regard to this matter in 2Q21 of CHF 594 million, consisting of CHF 493 million of trading losses as a result of market movements during the process of closing out the fund positions, a provision for credit losses of CHF 70 million and operating expenses of CHF 31 million mainly reflecting severance-related costs and professional services fees. Supply chain finance funds matter As previously reported, in early March 2021, the boards of four supply chain finance funds managed by certain Group subsidiaries (collectively, the SCFFs) decided to suspend redemptions and subscriptions of those funds, to protect the interests of the funds’ investors, to terminate the SCFFs and to proceed to their liquidation. Credit Suisse Asset Management (Schweiz) AG (CSAM) acts as the portfolio manager of the SCFFs. The assets held by the SCFFs largely consist of notes backed by existing and future receivables. These notes were originated and structured by Greensill Capital (UK) Limited or one of its affiliates (Greensill Capital). Greensill Capital filed for insolvency in the UK on March 8, 2021, and the portfolio manager is working closely with the administrators of Greensill Capital, Grant Thornton, and with other parties to facilitate the liquidation of the SCFFs. The last published net asset value of the SCFFs in late February 2021 was approximately USD 10 billion in the aggregate. To date, together with the cash already distributed to investors and cash remaining in the funds, total cash collected in the SCFFs amounts to approximately USD 6.6 billion including the cash position in the funds at the time of suspension. Redemption payments totaling approximately USD 5.5 billion have been made to their investors in three cash distributions, and a fourth cash distribution of approximately USD 0.4 billion, which would bring the total amount returned to investors to approximately USD 5.9 billion. The portfolio manager continues to work to liquidate the remaining assets of the SCFFs, including by engaging directly with potentially delinquent obligors and other creditors as appropriate. However, there remains considerable uncertainty regarding the valuation of a significant part of the remaining assets, including the fact that certain of the notes underlying the funds were not paid when they fell due and the portfolio manager has been informed that further notes will not be paid when they fall due in the future. It therefore can be assumed that the investors of the SCFFs will suffer a loss. CSAM intends to take all necessary steps to collect outstanding amounts from debtors and insurers, but can give no assurance as to the final amount that may be recovered for the SCFFs under such notes. The amount of loss of the investors therefore is currently unknown. Based on currently available information, losses for the investors can be expected to occur predominantly in positions that, prior to March 31, 2021, had a net asset value of approximately USD 2.3 billion in the aggregate. These positions relate primarily to three groups of companies: “GFG Alliance”, Katerra and Bluestone. For these three focus areas, more time is required to assess the situation accurately. CSAM continues to invest substantial efforts to maximize and expedite recovery in these positions, including pursuing consensual restructuring in addition to preparing insurance claims and seeking legal enforcement of the funds’ claims where appropriate. Given the complexity of the situation and negotiations, any predictions on recovery rates for these focus areas would be premature. The Group continues to analyze this matter, including with the assistance of external counsel and other experts. The Board has initiated an externally-led investigation of this matter, which is being supervised by a special committee of the Board. Redemptions and subscriptions of certain other funds managed by CSAM or CSAM subsidiaries that invested in part in the SCFFs were also suspended in early March 2021. The illiquid part of these funds’ assets was subsequently separated into a separate share class to allow for subscriptions and redemptions of the original share classes, reflecting the liquid part of the funds’ assets, to resume as of April 7, 2021. The separate share class reflecting the illiquid assets is in the process of being liquidated, and shareholders receive pro rata payments of the redemption proceeds. With respect to the Group’s outstanding collateralized bridge loan of USD 90 million to Greensill Capital, the Group has marked its fair value down to USD 56 million as of the end of 2Q21, down from USD 60 million as of the end of 1Q21. > Refer to “Risk factor” in I – Credit Suisse results – Credit Suisse in the Credit Suisse Financial Report 1Q21 for further information on risks that may arise in relation to this matter. Mandatory Convertible Notes offering On April 22, 2021, the Group announced that it placed two series of mandatory convertible notes (MCNs), Series A MCNs and Series B MCNs, which will be convertible into 100 million shares and 103 million shares of Credit Suisse Group AG, respectively. The MCNs settled on May 12, 2021. The aggregate principal amount of Series A MCNs issued was CHF 865 million and the aggregate principal amount of Series B MCNs issued was CHF 891 million. The shares of Credit Suisse Group AG underlying the Series A MCNs were issued from Credit Suisse Group AG’s conditional capital. The shares of Credit Suisse Group AG underlying the Series B MCNs were issued from Credit Suisse Group AG’s authorized capital. As of the end of 2Q21, MCNs with a principal value of CHF 924,000 have been early converted into 106,805 shares of Credit Suisse Group AG. The remaining shares of Credit Suisse Group AG are held by Credit Suisse Group (Guernsey) VII Limited, the issuing entity of the MCNs for delivery to holders of MCNs upon conversion of the MCNs. Subsequent events There were no subsequent events since the balance sheet date of the condensed consolidated financial statements.
Bank
Business developments	3 Business developments and subsequent events > Refer to “Note 3 – Business developments and subsequent events” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information on business developments. There were no subsequent events since the balance sheet date of the condensed consolidated financial statements.

Segment information

Segment information	6 Months Ended
	Jun. 30, 2021
Segment information	4 Segment information The Group is a global financial services company domiciled in Switzerland and serves its clients through three regionally focused divisions: Swiss Universal Bank, International Wealth Management and Asia Pacific. These regional businesses are supported by our Asset Management and Investment Bank divisions. Effective April 1, 2021, the Asset Management business has been separated from the International Wealth Management division and is managed as a new division of the Group. Prior periods have been restated to conform to the current presentation. The segment information reflects the Group’s reportable segments and the Corporate Center, which are managed and reported on a pre-tax basis. > Refer to “Note 4 – Segment information” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on segment information, revenue sharing and cost allocation and funding. Net revenues and income/(loss) before taxes in 2Q21 1Q21 2Q20 6M21 6M20 Net revenues (CHF million) Swiss Universal Bank 1,477 1,449 1,474 2,926 2,928 International Wealth Management 930 987 905 1,917 1,937 Asia Pacific 798 1,060 808 1,858 1,643 Asset Management 404 386 361 790 806 Investment Bank 1,610 3,543 2,862 5,153 4,942 Corporate Center (116) 149 (216) 33 (286) Net revenues 5,103 7,574 6,194 12,677 11,970 Income/(loss) before taxes (CHF million) Swiss Universal Bank 725 665 656 1,390 1,187 International Wealth Management 340 408 256 748 601 Asia Pacific 250 524 196 774 414 Asset Management 104 115 84 219 248 Investment Bank (76) (2,467) 912 (2,543) 995 Corporate Center (530) (2) (553) (532) (693) Income/(loss) before taxes 813 (757) 1,551 56 2,752 Total assets end of 2Q21 1Q21 4Q20 Total assets (CHF million) Swiss Universal Bank 265,801 269,089 261,465 International Wealth Management 91,957 90,300 91,503 Asia Pacific 70,569 74,878 67,356 Asset Management 3,591 3,941 3,703 Investment Bank 248,775 292,843 270,488 Corporate Center 116,106 120,344 111,307 Total assets 796,799 851,395 805,822
Bank
Segment information	4 Segment information > Refer to “Note 4 – Segment information” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information. For the purpose of presentation of reportable segments, the Bank has included accounts of affiliate entities wholly owned by the same parent which are managed together with the operating segments of the Bank. Net revenues and income/(loss) before taxes in 6M21 6M20 Net revenues (CHF million) Swiss Universal Bank 2,926 2,928 International Wealth Management 1,917 1,937 Asia Pacific 1,858 1,643 Asset Management 790 806 Investment Bank 5,153 4,942 Adjustments 1 238 (241) Net revenues 12,882 12,015 Income/(loss) before taxes (CHF million) Swiss Universal Bank 1,390 1,187 International Wealth Management 748 601 Asia Pacific 774 414 Asset Management 219 248 Investment Bank (2,543) 995 Adjustments 1 (573) (863) Income/(loss) before taxes 15 2,582 1 Adjustments represent certain consolidating entries and balances, including those relating to items that are managed but are not legally owned by the Bank and vice versa, and certain revenues and expenses that were not allocated to the segments, including such items relating to the Asset Resolution Unit. Total assets end of 6M21 2020 Total assets (CHF million) Swiss Universal Bank 265,801 261,465 International Wealth Management 91,957 91,503 Asia Pacific 70,569 67,356 Asset Management 3,591 3,703 Investment Bank 248,775 270,488 Adjustments 1 119,427 115,173 Total assets 800,120 809,688 1 Adjustments represent certain consolidating entries and balances, including those relating to items that are managed but are not legally owned by the Bank and vice versa, and certain revenues and expenses that were not allocated to the segments, including such items relating to the Asset Resolution Unit.

Net interest income

Net interest income	6 Months Ended
	Jun. 30, 2021
Net interest income	5 Net interest income in 2Q21 1Q21 2Q20 6M21 6M20 Net interest income (CHF million) Loans 1,277 1,265 1,488 2,542 3,130 Investment securities 0 0 2 0 3 Trading assets 1,109 1,314 1,566 2,423 3,231 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 311 341 391 652 936 Other 182 135 142 317 584 Interest and dividend income 2,879 3,055 3,589 5,934 7,884 Deposits (38) (51) (299) (89) (860) Short-term borrowings (40) (2) (76) (42) (152) Trading liabilities (453) (468) (717) (921) (1,473) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (209) (276) (211) (485) (505) Long-term debt (660) (543) (657) (1,203) (1,541) Other (63) (61) (59) (124) (249) Interest expense (1,463) (1,401) (2,019) (2,864) (4,780) Net interest income 1,416 1,654 1,570 3,070 3,104
Bank
Net interest income	5 Net interest income in 6M21 6M20 Net interest income (CHF million) Loans 2,514 3,113 Investment securities 0 3 Trading assets 2,424 3,231 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 652 936 Other 318 584 Interest and dividend income 5,908 7,867 Deposits (84) (857) Short-term borrowings 1 (155) Trading liabilities (921) (1,473) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (485) (505) Long-term debt (1,182) (1,522) Other (124) (251) Interest expense (2,795) (4,763) Net interest income 3,113 3,104

Commissions and fees

Commissions and fees	6 Months Ended
	Jun. 30, 2021
Commissions and fees	6 Commissions and fees in 2Q21 1Q21 2Q20 6M21 6M20 Commissions and fees (CHF million) Lending business 484 516 361 1,000 797 Investment and portfolio management 891 861 752 1,752 1,562 Other securities business 15 13 18 28 36 Fiduciary business 906 874 770 1,780 1,598 Underwriting 626 989 560 1,615 924 Brokerage 694 909 806 1,603 1,773 Underwriting and brokerage 1,320 1,898 1,366 3,218 2,697 Other services 448 449 383 897 715 Commissions and fees 3,158 3,737 2,880 6,895 5,807
Bank
Commissions and fees	6 Commissions and fees in 6M21 6M20 Commissions and fees (CHF million) Lending business 997 786 Investment and portfolio management 1,699 1,508 Other securities business 29 40 Fiduciary business 1,728 1,548 Underwriting 1,664 981 Brokerage 1,624 1,774 Underwriting and brokerage 3,288 2,755 Other services 913 727 Commissions and fees 6,926 5,816

Trading revenues

Trading revenues	6 Months Ended
	Jun. 30, 2021
Trading revenues	7 Trading revenues in 2Q21 1Q21 2Q20 6M21 6M20 Trading revenues (CHF million) Interest rate products 154 752 1,374 906 (874) Foreign exchange products 358 148 539 506 1,110 Equity/index-related products (117) 1,001 (375) 884 (56) Credit products (271) (33) (682) (304) 1,217 Commodity and energy products (7) 9 69 2 97 Other products 36 (66) 329 (30) 687 Trading revenues 153 1,811 1,254 1,964 2,181 Represents revenues on a product basis which are not representative of business results within segments, as segment results utilize financial instruments across various product types. > Refer to “Note 7 – Trading revenues” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on trading revenues and managing trading risks.
Bank
Trading revenues	7 Trading revenues in 6M21 6M20 Trading revenues (CHF million) Interest rate products 893 (921) Foreign exchange products 497 1,113 Equity/index-related products 868 (88) Credit products (304) 1,217 Commodity and energy products 2 97 Other products (32) 687 Trading revenues 1,924 2,105 Represents revenues on a product basis which are not representative of business results within segments, as segment results utilize financial instruments across various product types.

Other revenues

Other revenues	6 Months Ended
	Jun. 30, 2021
Other revenues	8 Other revenues in 2Q21 1Q21 2Q20 6M21 6M20 Other revenues (CHF million) Noncontrolling interests without SEI 4 (1) 0 3 0 Loans held-for-sale (58) (41) 5 (99) (16) Long-lived assets held-for-sale 3 (2) 6 1 10 Equity method investments 55 29 23 84 59 Other investments 131 199 223 330 451 Other 241 188 233 429 374 Other revenues 376 372 490 748 878
Bank
Other revenues	8 Other revenues in 6M21 6M20 Other revenues (CHF million) Loans held-for-sale (99) (16) Long-lived assets held-for-sale 1 10 Equity method investments 84 58 Other investments 332 451 Other 601 487 Other revenues 919 990

Provision for credit losses

Provision for credit losses	6 Months Ended
	Jun. 30, 2021
Provision for credit losses	9 Provision for credit losses in 2Q21 1Q21 2Q20 6M21 6M20 Provision for credit losses (CHF million) Loans held at amortized cost (28) (24) 264 (52) 691 Other financial assets held at amortized cost 56 1 4,434 1 21 4,490 1 36 Off-balance sheet credit exposures (53) (16) 11 (69) 137 Provision for credit losses (25) 4,394 296 4,369 864 1 Primarily reflects a provision for credit losses of CHF 70 million, CHF 4,430 million and CHF 4,500 million in 2Q21, 1Q21 and 6M21, respectively, related to the failure of Archegos to meet its margin commitments.
Bank
Provision for credit losses	9 Provision for credit losses in 6M21 6M20 Provision for credit losses (CHF million) Loans held at amortized cost (52) 691 Other financial assets held at amortized cost 4,494 1 32 Off-balance sheet credit exposures (69) 137 Provision for credit losses 4,373 860 1 Primarily reflects a provision for credit losses of CHF 4,500 million related to the failure of Archegos to meet its margin commitments.

Compensation and benefits

Compensation and benefits	6 Months Ended
	Jun. 30, 2021
Compensation and benefits	10 Compensation and benefits in 2Q21 1Q21 2Q20 6M21 6M20 Compensation and benefits (CHF million) Salaries and variable compensation 1,997 1,849 2,234 3,846 4,143 Social security 166 158 172 324 340 Other 1 193 200 188 393 427 Compensation and benefits 2,356 2,207 2,594 4,563 4,910 1 Includes pension-related expenses of CHF 120 million, CHF 130 million, CHF 113 million, CHF 250 million and CHF 263 million in 2Q21 1Q21 2Q20 6M21 6M20
Bank
Compensation and benefits	10 Compensation and benefits in 6M21 6M20 Compensation and benefits (CHF million) Salaries and variable compensation 3,449 3,711 Social security 278 293 Other 1 369 416 Compensation and benefits 4,096 4,420 1 Includes pension-related expenses of CHF 250 million and CHF 272 million in 6M21 and 6M20, respectively, relating to service costs for defined benefit pension plans and employer contributions for defined contribution pension plans.

General and administrative expe

General and administrative expenses	6 Months Ended
	Jun. 30, 2021
General and administrative expenses	11 General and administrative expenses in 2Q21 1Q21 2Q20 6M21 6M20 General and administrative expenses (CHF million) Occupancy expenses 231 263 237 494 465 IT, machinery and equipment 383 373 357 756 707 Provisions and losses 273 57 133 330 205 Travel and entertainment 32 29 28 61 96 Professional services 454 373 377 827 752 Amortization and impairment of other intangible assets 2 2 1 4 3 Other 1 214 279 307 493 558 General and administrative expenses 1,589 1,376 1,440 2,965 2,786 1 Includes pension-related expenses/(credits) of CHF (42) (52) (40) (94) (80) 2Q21 1Q21 2Q20 6M21 6M20
Bank
General and administrative expenses	11 General and administrative expenses in 6M21 6M20 General and administrative expenses (CHF million) Occupancy expenses 449 415 IT, machinery and equipment 597 561 Provisions and losses 330 203 Travel and entertainment 52 85 Professional services 1,609 1,481 Amortization and impairment of other intangible assets 4 3 Other 1 623 747 General and administrative expenses 3,664 3,495 1 Includes pension-related expenses/(credits) of CHF (10)

Restructuring expenses

Restructuring expenses	6 Months Ended
	Jun. 30, 2021
Restructuring, Impairment, and Other Activities Disclosure [Text Block]	12 Restructuring expenses In connection with the key strategic growth initiatives announced in July 2020, restructuring expenses of CHF 45 million were recognized in 2Q21. Restructuring expenses may include severance expenses, expenses in connection with the acceleration of certain deferred compensation awards, pension expenses and contract termination costs. The Group completed the one-year restructuring plan in connection with the implementation of the key strategic growth initiatives by the end of June 2021. Restructuring expenses by type in 2Q21 1Q21 2Q20 6M21 6M20 Restructuring expenses by type (CHF million) Compensation and benefits-related expenses 2 11 – 13 – of which severance expenses (1) 7 – 6 – of which accelerated deferred compensation 3 4 – 7 – General and administrative-related expenses 43 14 – 57 – of which pension expenses (4) (7) – (11) – Total restructuring expenses 45 25 – 70 – Restructuring liabilities 2Q21 1Q21 2Q20 Compen- General and Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 39 3 42 50 2 52 – – – Net additional charges 1 (1) 26 25 7 10 17 – – – Utilization (16) (26) (42) (18) (9) (27) – – – Balance at end of period 22 3 25 39 3 42 – – – 1 The following items for which expense accretion was accelerated in 2Q21 and 1Q21 due to the restructuring of the Group are not included in the restructuring liabilities: unsettled share-based compensation of CHF 1 million and CHF 1 million, respectively, which remain classified as a component of total shareholders' equity; unsettled pension obligations of CHF (4) (7) Restructuring liabilities (continued) 6M21 6M20 Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 50 2 52 – – – Net additional charges 1 6 36 42 – – – Reclassifications – – – – – – Utilization (34) (35) (69) – – – Balance at end of period 22 3 25 – – – 1 The following items for which expense accretion was accelerated in 6M21 due to the restructuring of the Group are not included in the restructuring liabilities: unsettled share-based compensation of CHF 2 million; unsettled pension obligations of CHF (11)
Bank
Restructuring, Impairment, and Other Activities Disclosure [Text Block]	12 Restructuring expenses In connection with the key strategic growth initiatives announced in July 2020, restructuring expenses of CHF 80 million were recognized in 6M21. Restructuring expenses may include severance expenses, expenses in connection with the acceleration of certain deferred compensation awards, pension expenses and contract termination costs. The Bank completed the one-year restructuring plan in connection with the implementation of the key strategic growth initiatives by the end of June 2021. Restructuring expenses by type in 6M21 6M20 Restructuring expenses by type (CHF million) Compensation and benefits-related expenses 14 – of which severance expenses 7 – of which accelerated deferred compensation 7 – General and administrative-related expenses 66 – of which pension expenses 4 – Total restructuring expenses 80 – Restructuring liabilities 6M21 6M20 Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 47 2 49 – – – Net additional charges 1 7 30 37 – – – Reclassifications – – – – – – Utilization (32) (29) (61) – – – Balance at end of period 22 3 25 – – – 1 The following items for which expense accretion was accelerated in 6M21 due to the restructuring of the Bank are not included in the restructuring provision: unsettled share-based compensation of CHF 2 million; unsettled pension obligation related to restructuring of CHF 4

Earnings per share

Earnings per share	6 Months Ended
	Jun. 30, 2021
Earnings per share	13 Earnings per share in 2Q21 1Q21 2Q20 6M21 6M20 Basic net income/(loss) attributable to shareholders (CHF million) Net income/(loss) attributable to shareholders for basic earnings per share 253 (252) 1,162 1 2,476 Available for common shares 252 (252) 1,162 1 2,476 Available for mandatory convertible notes 1 – – – – Net income/(loss) attributable to shareholders for diluted earnings per share 253 (252) 1,162 1 2,476 Available for common shares 252 (252) 1,162 1 2,476 Available for mandatory convertible notes 1 – – – – Weighted-average shares outstanding (million) For basic earnings per share available for common shares 2,453.9 2,446.6 2,473.6 2,450.3 2,469.7 Dilutive share options and warrants 0.8 0.0 2.6 0.6 2.1 Dilutive share awards 55.1 0.0 35.2 73.6 47.7 For diluted earnings per share available for common shares 1 2,509.8 2,446.6 2 2,511.4 2,524.5 2,519.5 Weighted-average shares outstanding for basic/diluted earnings per share available for mandatory convertible notes 130.8 – – 65.4 – Earnings/(loss) per share available for common shares (CHF) Basic earnings/(loss) per share available for common shares 0.10 (0.10) 0.47 0.00 1.00 Diluted earnings/(loss) per share available for common shares 0.10 (0.10) 0.46 0.00 0.98 1 Weighted-average potential common shares relating to instruments that were not dilutive for the respective periods (and therefore not included in the diluted earnings per share calculation above) but could potentially dilute earnings per share in the future were 9.6 million, 6.5 million, 5.3 million, 8.1 million and 4.8 million for 2Q21, 1Q21, 2Q20, 6M21 and 6M20, respectively. 2 Due to the net loss in 1Q21, 0.4 million of weighted-average share options and warrants outstanding and 92.0 million of weighted-average share awards outstanding were excluded from the diluted earnings per share calculation, as the effect would be antidilutive.

Revenue from contracts with cus

Revenue from contracts with customers	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Text Block]	14 Revenue from contracts with customers The Group receives investment advisory and investment management fees for services provided in its wealth management businesses which are generally reflected in the line item ‘Investment and portfolio management’ in the table “Contracts with customers and disaggregation of revenues”. As a fund manager, the Group typically receives base management fees and may additionally receive performance-based management fees which are both recognized as ‘Investment and portfolio management’ revenues in the table “Contracts with customers and disaggregation of revenues”. The Group’s capital markets businesses underwrite and sell securities on behalf of customers and receive underwriting fees. The Group also offers brokerage services in its investment banking businesses, including global securities sales, trading and execution, prime brokerage and investment research. For the services provided, such as for example the execution of client trades in securities or derivatives, the Group typically earns a brokerage commission when the trade is executed. Credit Suisse’s investment banking businesses provide services that include advisory services to clients in connection with corporate finance activities. The term ‘advisory’ includes any type of service the Group provides in an advisory capacity. Revenues recognized from these services are reflected in the line item ‘Other Services’ in the table. Contracts with customers and disaggregation of revenues in 2Q21 1Q21 2Q20 6M21 6M20 Contracts with customers (CHF million) Investment and portfolio management 891 861 752 1,752 1,562 Other securities business 15 13 18 28 36 Underwriting 626 989 560 1,615 924 Brokerage 693 908 805 1,601 1,771 Other services 445 448 387 893 724 Total revenues from contracts with customers 2,670 3,219 2,522 5,889 5,017 The table “Contracts with customers and disaggregation of revenues” differs from “Note 6 – Commissions and fees” as it includes only those contracts with customers that are in scope of ASC Topic 606 – Revenue from Contracts with Customers. Contract balances end of 2Q21 1Q21 4Q20 Contract balances (CHF million) Contract receivables 1,011 1,120 1,001 Contract liabilities 52 65 48 Revenue recognized in the reporting period included in the contract liabilities balance at the beginning of period 18 8 7 The Group did not recognize any revenue in the reporting period from performance obligations satisfied in previous periods. There were no material net impairment losses on contract receivables in 2Q21, 1Q21 and 4Q20. The Group’s contract terms are generally such that they do not result in any contract assets. Remaining performance obligations ASC Topic 606’s practical expedient allows the Group to exclude from its remaining performance obligations disclosure any performance obligations which are part of a contract with an original expected duration of one year or less. Additionally any variable consideration, for which it is probable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty associated with the variable consideration is subsequently resolved, is not subject to the remaining performance obligations disclosure because such variable consideration is not included in the transaction price (e.g., investment management fees). Upon review, the Group determined that no material remaining performance obligations are in scope of the remaining performance obligations disclosure. > Refer to “Note 14 – Revenue from contracts with customers” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information.
Bank
Revenue from Contract with Customer [Text Block]	13 Revenue from contracts with customers > Refer to “Note 14 – Revenue from contracts with customers” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information. Contracts with customers and disaggregation of revenues in 6M21 6M20 Contracts with customers (CHF million) Investment and portfolio management 1,699 1,508 Other securities business 29 40 Underwriting 1,664 981 Brokerage 1,623 1,772 Other services 937 774 Total revenues from contracts with customers 5,952 5,075 The table above differs from “Note 6 – Commissions and fees” as it includes only those contracts with customers that are in scope of ASC Topic 606 – Revenue from Contracts with Customers. Contract balances end of 2Q21 1Q21 4Q20 Contract balances (CHF million) Contract receivables 1,032 1,123 993 Contract liabilities 52 65 48 Revenue recognized in the reporting period included in the contract liabilities balance at the beginning of period 18 8 7 There were no material net impairment losses on contract receivables in 6M21 and 6M20. The Bank’s contract terms are generally such that they do not result in any contract assets. The Bank did not recognize any revenues in the reporting period from performance obligations satisfied in previous periods. Remaining performance obligations ASC Topic 606’s practical expedient allows the Bank to exclude from its remaining performance obligations disclosure any performance obligations which are part of a contract with an original expected duration of one year or less. Additionally any variable consideration, for which it is probable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty associated with the variable consideration is subsequently resolved, is not subject to the remaining performance obligations disclosure because such variable consideration is not included in the transaction price (e.g., investment management fees). The Bank determined that no material remaining performance obligations are in scope of the remaining performance obligations disclosure. > Refer to “Note 13 – Revenue from contracts with customers” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information.

Trading assets and liabilities

Trading assets and liabilities	6 Months Ended
	Jun. 30, 2021
Trading assets and liabilities	15 Trading assets and liabilities end of 2Q21 1Q21 4Q20 Trading assets (CHF million) Debt securities 57,620 64,128 64,395 Equity securities 44,226 60,340 63,237 Derivative instruments 1 24,156 28,638 25,531 Other 4,503 4,033 4,175 Trading assets 130,505 157,139 157,338 Trading liabilities (CHF million) Short positions 20,369 31,326 28,126 Derivative instruments 1 12,603 16,414 17,745 Trading liabilities 32,972 47,740 45,871 1 Amounts shown after counterparty and cash collateral netting. Cash collateral on derivative instruments end of 2Q21 1Q21 4Q20 Cash collateral on derivatives instruments – netted (CHF million) 1 Cash collateral paid 21,161 24,630 26,815 Cash collateral received 13,865 13,966 16,795 Cash collateral on derivatives instruments– not netted (CHF million) 2 Cash collateral paid 7,664 8,817 7,741 Cash collateral received 7,200 8,839 7,831 1 Recorded as cash collateral netting on derivative instruments in Note 24 – Offsetting of financial assets and financial liabilities. 2 Recorded as cash collateral on derivative instruments in Note 21 – Other assets and other liabilities.
Bank
Trading assets and liabilities	14 Trading assets and liabilities end of 6M21 2020 Trading assets (CHF million) Debt securities 57,739 64,532 Equity securities 44,287 63,273 Derivative instruments 1 24,155 25,531 Other 4,503 4,175 Trading assets 130,684 157,511 Trading liabilities (CHF million) Short positions 20,369 28,126 Derivative instruments 1 12,602 17,745 Trading liabilities 32,971 45,871 1 Amounts shown after counterparty and cash collateral netting. Cash collateral on derivative instruments end of 6M21 2020 Cash collateral on derivative instruments – netted (CHF million) 1 Cash collateral paid 21,162 26,885 Cash collateral received 13,865 16,795 Cash collateral on derivative instruments – not netted (CHF million) 2 Cash collateral paid 7,664 7,741 Cash collateral received 7,209 7,831 1 Recorded as cash collateral netting on derivative instruments in Note 23 – Offsetting of financial assets and financial liabilities. 2 Recorded as cash collateral on derivative instruments in Note 20 – Other assets and other liabilities.

Investment securities

Investment securities	6 Months Ended
	Jun. 30, 2021
Investment securities	16 Investment securities end of 2Q21 1Q21 4Q20 Investment securities (CHF million) Debt securities available-for-sale 794 614 607 Total investment securities 794 614 607 Investment securities by type 2Q21 4Q20 Gross Gross Gross Gross Investment securities by type (CHF million) Swiss federal, cantonal or local government entities 2 0 0 2 3 0 0 3 Foreign governments 32 0 0 32 0 0 0 0 Corporate debt securities 757 4 1 760 593 11 0 604 Debt securities available-for-sale 791 4 1 794 596 11 0 607 Proceeds from sales, realized gains and realized losses from debt securities available-for-sale in 6M21 6M20 Sales of debt securities available-for-sale (CHF million) Proceeds from sales 0 626 Realized gains 0 42 Amortized cost, fair value and average yield of debt securities Average 2Q21 (CHF million, except where indicated) Due within 1 year 174 174 0.03 Due from 1 to 5 years 2 2 3.81 Due from 5 to 10 years 615 618 0.02 Debt securities available-for-sale 791 794 0.03 Allowance for credit losses on debt securities available-for-sale A credit loss exists if there is a decline in fair value of the security below the amortized cost as a result of the non-collectability of the amounts due in accordance with the contractual terms. An allowance for expected credit losses is recorded in the consolidated statement of operations in provision for credit losses and the non-credit-related losses are recorded in accumulated other comprehensive income (AOCI). Subsequent improvements in the estimated credit losses are immediately recorded in the consolidated statement of operations as a reduction in allowance and credit loss expense. A security is written-off if it is considered certain that there is no possibility of recovering the outstanding principal. As of the end of 2Q21 and 4Q20, the Group had no allowance for credit losses on debt securities available-for-sale.
Bank
Investment securities (old to delete)	15 Investment securities end of 6M21 2020 Investment securities (CHF million) Debt securities available-for-sale 792 605 Total investment securities 792 605 Investment securities by type 6M21 2020 Gross Gross Gross Gross Investment securities by type (CHF million) Swiss federal, cantonal or local government entities 0 0 0 0 1 0 0 1 Foreign governments 32 0 0 32 0 0 0 0 Corporate debt securities 757 4 1 760 594 10 0 604 Debt securities available-for-sale 789 4 1 792 595 10 0 605 Proceeds from sales, realized gains and realized losses from debt securities available-for-sale in 6M21 6M20 Sales of debt securities available-for-sale (CHF million) Proceeds from sales 0 626 Realized gains 0 42 Amortized cost, fair value and average yield of debt securities Average Due within 1 year 174 174 0.03 Due from 5 to 10 years 615 618 0.02 Debt securities available-for-sale 789 792 0.02 Allowance for credit losses on debt securities available-for-sale > Refer to “Note 16 – Investment securities” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information on allowance for credit losses on debt securities available for sale. As of the end of 6M21 and 6M20, the Bank had no allowance for credit losses on debt securities available-for-sale.

Other investments

Other investments	6 Months Ended
	Jun. 30, 2021
Other investments	17 Other investments end of 2Q21 1Q21 4Q20 Other investments (CHF million) Equity method investments 1,757 2,812 2,631 Equity securities (without a readily determinable fair value) 1 1,867 1,834 1,779 of which at net asset value 122 114 113 of which at measurement alternative 355 367 359 of which at fair value 1,343 1,321 1,278 of which at cost less impairment 47 32 29 Real estate held-for-investment 2 77 78 82 Life finance instruments 3 877 916 920 Total other investments 4,578 5,640 5,412 1 Includes private equity, hedge funds and restricted stock investments as well as certain investments in non-marketable mutual funds for which the Group has neither significant influence nor control over the investee. 2 As of the end of 2Q21 1Q21 4Q20 3 Includes single premium immediate annuity contracts. Accumulated depreciation related to real estate held-for-investment amounted to CHF 32 million, CHF 34 million and CHF 35 million for 2Q21, 1Q21 and 4Q20, respectively. No impairments were recorded on real estate held-for-investments in 2Q21, 1Q21 and 6M21, respectively. An impairment of CHF 1 million was recorded on real estate held-for-investments in 2Q20 and 6M20. Equity securities at measurement alternative in / end of 6M21 Cumulative 6M20 Impairments and adjustments (CHF million) Impairments and downward adjustments (5) (30) (3) Upward adjustments 0 137 137 > Refer to “Note 31 – Financial instruments” for further information on equity securities without a readily determinable fair value. In 2Q21, following the IPO of Allfunds Group, the Group holds an equity interest in Allfunds Group of 9.4% In 4Q20, York informed its investors of a significant change in strategy. As a result, York will focus on longer duration assets such as private equity, private debt and collateralized loan obligations (CLOs), while winding down its European hedge funds business and primarily managing internal capital in its multi-strategy fund. York’s Asia Pacific business is expected to be spun off as a new and separate hedge fund in 2021, in which the Group intends to have a continuing interest. As a result of this announcement, the Group recorded an impairment of CHF 414 million to the valuation of its equity method investment.
Bank
Other investments	16 Other investments > Refer to “Note 17 – Other investments” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information. end of 6M21 2020 Other investments (CHF million) Equity method investments 1,750 2,624 Equity securities (without a readily determinable fair value) 1 1,864 1,776 of which at net asset value 122 111 of which at measurement alternative 353 357 of which at fair value 1,342 1,278 of which at cost less impairment 47 30 Real estate held-for-investment 2 52 59 Life finance instruments 3 877 920 Total other investments 4,543 5,379 1 Includes private equity, hedge funds and restricted stock investments as well as certain investments in non-marketable mutual funds for which the Bank has neither significant influence nor control over the investee. 2 As of the end of 6M21 and 2020, real estate held for investment included foreclosed or repossessed real estate of CHF 10 million and CHF 16 million, respectively, of which CHF 8 million and CHF 13 million, respectively, were related to residential real estate. 3 Includes single premium immediate annuity contracts. Equity securities at measurement alternative – impairments and adjustments in / end of 6M21 Cumulative 6M20 Impairments and adjustments (CHF million) Impairments and downward adjustments (5) (30) (3) Upward adjustments 0 137 137 > Refer to “Note 30 – Financial instruments” for further information on equity securities without a readily determinable fair value. Accumulated depreciation related to real estate held-for-investment amounted to CHF 28 million and CHF 31 million for 6M21 and 2020, respectively. No impairments were recorded on real estate held-for-investments in 6M21, while an impairment of CHF 1 million was recorded on real estate held-for-investments in 6M20.

Loans, allowance for loan losse

Loans, allowance for loan losses and credit quality	6 Months Ended
	Jun. 30, 2021
Loans	18 Loans The Group’s loan portfolio is classified into two portfolio segments, consumer loans and corporate & institutional loans. Consumer loans are disaggregated into the classes of mortgages, loans collateralized by securities and consumer finance. Corporate & institutional loans are disaggregated into the classes of real estate, commercial and industrial loans, financial institutions, and governments and public institutions. For financial reporting purposes, the carrying values of loans and related allowance for credit losses are presented in accordance with US GAAP and are not comparable with the regulatory credit risk exposures presented in our disclosures required under Pillar 3 of the Basel framework. Loans end of 2Q21 1Q21 4Q20 Loans (CHF million) Mortgages 112,223 111,678 111,270 Loans collateralized by securities 54,573 56,281 51,789 Consumer finance 6,567 5,889 4,888 Consumer 173,363 173,848 167,947 Real estate 29,464 30,320 29,045 Commercial and industrial loans 73,923 76,528 74,097 Financial institutions 21,016 21,353 19,072 Governments and public institutions 3,584 3,770 3,378 Corporate & institutional 127,987 131,971 125,592 Gross loans 301,350 305,819 293,539 of which held at amortized cost 290,249 293,992 282,131 of which held at fair value 11,101 11,827 11,408 Net (unearned income)/deferred expenses (94) (104) (95) Allowance for credit losses (1,412) (1,527) (1,536) Net loans 299,844 304,188 291,908 Gross loans by location (CHF million) Switzerland 170,902 171,126 168,589 Foreign 130,448 134,693 124,950 Gross loans 301,350 305,819 293,539 Impaired loan portfolio (CHF million) Non-performing loans 1,896 1,809 1,666 Non-interest-earning loans 383 380 375 Non-accrual loans 2,279 2,189 2,041 Restructured loans 471 472 313 Potential problem loans 406 512 843 Other impaired loans 877 984 1,156 Gross impaired loans 1 3,156 3,173 3,197 1 As of the end of 2Q21, 1Q21 and 4Q20, CHF 181 million, CHF 176 million and CHF 180 million, respectively, were related to consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process. In accordance with Group policies, impaired loans include non-accrual loans, comprised of non-performing loans and non-interest-earning loans, as well as restructured loans and potential problem loans. > Refer to “Loans” in Note 1 – Summary of significant accounting policies in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on loans and categories of impaired loans. > Refer to “Note 19 – Financial instruments measured at amortized cost and credit losses” for further information on loans held at amortized cost.
Bank
Loans	17 Loans > Refer to “Note 18 – Loans” in III – Condensed consolidated financial statements – Credit Suisse Group in the Credit Suisse Financial Report 2Q21 for further information. Loans end of 6M21 2020 Loans (CHF million) Mortgages 112,223 111,270 Loans collateralized by securities 54,573 51,789 Consumer finance 6,567 4,888 Consumer 173,363 167,947 Real estate 29,464 29,045 Commercial and industrial loans 74,570 74,700 Financial institutions 28,683 26,901 Governments and public institutions 3,584 3,378 Corporate & institutional 136,301 134,024 Gross loans 309,664 301,971 of which held at amortized cost 298,563 290,563 of which held at fair value 11,101 11,408 Net (unearned income)/deferred expenses (94) (95) Allowance for credit losses (1,411) (1,535) Net loans 308,159 300,341 Gross loans by location Switzerland 178,458 176,312 Foreign 131,206 125,659 Gross loans 309,664 301,971 Impaired loans Non-performing loans 1,896 1,666 Non-interest-earning loans 371 363 Non-accrual loans 2,267 2,029 Restructured loans 471 313 Potential problem loans 406 843 Other impaired loans 877 1,156 Gross impaired loans 1 3,144 3,185 1 As of the end of 6M21 and 2020, CHF 181 million and CHF 180 million, respectively, were related to consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process. > Refer to “Loans” in Note 1 – Summary of significant accounting policies in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on categories of impaired loans. > Refer to “Note 18– Financial instruments measured at amortized cost and credit losses” for further information on loans held at amortized cost.

CECL - Financial instruments me

CECL - Financial instruments measured at amortized cost and credit losses	6 Months Ended
	Jun. 30, 2021
Financial instruments measured at amortized cost and credit losses	19 Financial instruments measured at amortized cost and credit losses This disclosure provides an overview of the Group’s balance sheet positions that include financial assets carried at amortized cost that are subject to the CECL accounting guidance. As of the end of 2Q21, the Group had no purchased financial assets with more than insignificant credit deterioration since origination. > Refer to “Note 1 – Summary of significant accounting policies” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the accounting of financial assets and off-balance sheet credit exposure subject to the CECL accounting guidance. Overview of financial instruments measured at amortized cost – by balance sheet position 2Q21 4Q20 1 Allowance Net 1 Allowance Net CHF million Cash and due from banks 146,217 0 146,217 138,593 (6) 138,587 Interest-bearing deposits with banks 1,313 2 0 1,313 1,303 4 (5) 1,298 Securities purchased under resale agreements and securities borrowing transactions 25,180 2 0 25,180 21,139 0 21,139 Loans 290,155 2,3 (1,412) 288,743 282,036 4,5 (1,536) 280,500 Brokerage receivables 37,501 2 (4,429) 33,072 35,942 4 (1) 35,941 Other assets 14,147 (41) 14,106 15,394 (43) 15,351 Total 514,513 (5,882) 508,631 494,407 (1,591) 492,816 1 Net of unearned income/deferred expenses, as applicable. 2 Excludes accrued interest for credit losses in the total amount of CHF 380 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 1 million to securities purchased under resale agreements and securities borrowing transactions, CHF 363 million to loans and CHF 15 million to brokerage receivables. These accrued interest balances are reported in other assets. 3 Includes endangered interest of CHF 89 million on non-accrual loans which are reported as part of the loans' amortized cost balance. 4 Excludes accrued interest for credit losses in the total amount of CHF 351 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 334 million to loans and CHF 16 million to brokerage receivables. These accrued interest balances are reported in other assets. 5 Includes endangered interest of CHF 88 million on non-accrual loans which are reported as part of the loans' amortized cost balance. Allowance for credit losses Estimating expected credit losses – overview > Refer to “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on key elements and processes of estimating expected credit losses on non-impaired and impaired credit exposures. Macroeconomic scenarios The estimation and application of forward-looking information requires quantitative analysis and significant expert judgment. The Group’s estimation of expected credit losses is based on a discounted probability-weighted estimate that considers three future macroeconomic scenarios: a baseline scenario, an upside scenario and a downside scenario. The baseline scenario represents the most likely outcome. The two other scenarios represent more optimistic and more pessimistic outcomes with the downside scenario being more severe than the upside scenario. The scenarios are probability-weighted according to the Group’s best estimate of their relative likelihood based on historical frequency, an assessment of the current business and credit cycles as well as the macroeconomic factor (MEF) trends. Current-period estimate of expected credit losses The key MEFs used in each of the macroeconomic scenarios for the calculation of the expected credit losses include, but are not limited to, GDP and industrial production. These MEFs have been selected based on the portfolios that are most material to the estimation of CECL from a longer-term perspective. As of the end of 2Q21, the forecast macroeconomic scenarios were weighted 60% 30% 10% 50% 40% 10% 2.3% 3.9% 0.1% 2.7% 2.3% 4.2% 1.4% 4.9% 4.8% 7.3% 1.4% 3.8% the timing of the recovery of the quarterly series for US real GDP to return to pre-pandemic levels was 2Q21. The forecast range for the increase in UK real GDP was 4.8% 7.0% 3.0% 7.3% 7.2% 10.8% 2.6% 5.2% For extreme and statistically rare events which cannot be adequately reflected in CECL models, such as the effects of the COVID-19 pandemic on the global economy, the event becomes the baseline scenario. In order to address circumstances where in management’s judgment the CECL model outputs are overly sensitive to the effect of economic inputs that lie significantly outside of their historical range, model overlays are applied. Such overlays are based on expert judgment and are applied in response to these exceptional circumstances to consider historical stressed losses and industry and counterparty credit level reviews. Overlays are also used to capture judgment on the economic uncertainty from global or regional developments or governmental actions with severe impacts on economies, such as the lockdowns and other actions directed towards managing the pandemic. As a result of such overlays, provisions for credit losses may not be primarily derived from MEF projections. As of the end of 2Q21, the Group has continued its approach of applying qualitative overlays to the CECL model outputs in a manner consistent with the end of 1Q21. During 2Q21 we continued to observe more favorable developments in the COVID-19 pandemic, including vaccination rate increases as well as a reduction in lockdown measures, which resulted in a generally more positive economic outlook. This overall favorable trend in 2Q21 was reflected in the Group’s overlays, which continue to be closely aligned with the macroeconomic forecasts. Loans held at amortized cost The Group’s loan portfolio is classified into two portfolio segments, consumer loans and corporate & institutional loans. > Refer to “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the main risk characteristics of the Group’s loans held at amortized cost. Allowance for credit losses – loans held at amortized cost 2Q21 1Q21 2Q20 Corporate & Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 329 1,198 1,527 318 1,218 1,536 349 1,082 1,431 Current-period provision for expected credit losses 31 (44) (13) 12 (35) (23) 62 218 280 of which provisions for interest 1 7 8 15 1 0 1 16 0 16 Gross write-offs (13) (77) (90) (14) (24) (38) (12) (24) (36) Recoveries 2 0 2 2 0 2 2 1 3 Net write-offs (11) (77) (88) (12) (24) (36) (10) (23) (33) Foreign currency translation impact and other adjustments, net (4) (10) (14) 11 39 50 (2) (7) (9) Balance at end of period 345 1,067 1,412 329 1,198 1,527 399 1,270 1,669 of which individually evaluated 255 614 869 240 627 867 313 586 899 of which collectively evaluated 90 453 543 89 571 660 86 684 770 6M21 6M20 Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 318 1,218 1,536 241 808 1,049 Current-period provision for expected credit losses 43 (79) (36) 183 533 716 of which provisions for interest 1 8 8 16 21 4 25 Gross write-offs (27) (101) (128) (24) (59) (83) Recoveries 4 0 4 5 2 7 Net write-offs (23) (101) (124) (19) (57) (76) Foreign currency translation impact and other adjustments, net 7 29 36 (6) (14) (20) Balance at end of period 345 1,067 1,412 399 1,270 1,669 1 Represents the current-period net provision for accrued interest on non-accrual loans and lease financing transactions which is recognized as a reversal of interest income. Gross write-offs of CHF 90 million in 2Q21 compared to gross write-offs of CHF 38 million in 1Q21 and were primarily related to corporate & institutional loans in both quarters. In 2Q21, gross write-offs in corporate & institutional loans were mainly related to a position in corporate loans, the sale of a real estate company and single positions in small and medium-sized enterprises, trade finance and ship finance. Write-offs in consumer loans were mainly related to Swiss consumer finance loans. In 1Q21, gross write-offs in corporate & institutional loans were mainly related to a position in the US healthcare sector. Write-offs in consumer loans were mainly related to several Swiss consumer finance loans. Purchases, reclassifications and sales – loans held at amortized cost 2Q21 1Q21 2Q20 Corporate & Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 12 981 993 5 988 993 21 643 664 Reclassifications from loans held-for-sale 2 0 0 0 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 1,652 1,652 0 468 468 0 528 528 Sales 3 0 1,633 1,633 0 374 374 0 558 558 6M21 6M20 Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 17 1,969 1,986 21 1,328 1,349 Reclassifications from loans held-for-sale 2 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 2,120 2,120 0 988 988 Sales 3 0 2,007 2,007 0 980 980 1 Includes drawdowns under purchased loan commitments. 2 Includes loans previously reclassified to held-for-sale that were not sold and were reclassified back to loans held-to-maturity. 3 All loans held at amortized cost which are sold are reclassified to loans held-for-sale on or prior to the date of the sale. Other financial assets The Group’s other financial assets include certain balance sheet positions held at amortized cost, each representing its own portfolio segment. > Refer to “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the main risk characteristics of the Group’s other financial assets held at amortized cost. The current-period provision for expected credit losses on other financial assets held at amortized cost in 2Q21, 1Q21 and 6M21 includes a total amount of CHF 70 million, CHF 4,430 million and CHF 4,500 million, respectively, related to the failure of Archegos to meet its margin commitments. As of the end of 2Q21, the related allowance is reported in brokerage receivables. Allowance for credit losses – other financial assets held at amortized cost 2Q21 1Q21 2Q20 6M21 6M20 CHF million Balance at beginning of period 4,488 55 52 55 45 Current-period provision for expected credit losses 56 4,434 21 4,490 36 Gross write-offs (4) 0 (1) (4) (9) Recoveries 0 0 1 0 1 Net write-offs (4) 0 0 (4) (8) Foreign currency translation impact and other adjustments, net (70) (1) (3) (71) (3) Balance at end of period 4,470 4,488 70 4,470 70 of which individually evaluated 4,450 4,449 20 4,450 20 of which collectively evaluated 20 39 50 20 50 Credit quality information > Refer to “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the Group’s monitoring of credit quality and internal ratings. Credit quality of loans held at amortized cost The following table presents the Group’s carrying value of loans held at amortized cost by aggregated internal counterparty credit ratings “investment grade” and “non-investment grade” that are used as credit quality indicators for the purpose of this disclosure, by year of origination. Within the line items relating to the origination year, the first year represents the origination year of the current reporting period and the second year represents the origination year of the comparative reporting period. Consumer loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Mortgages 2021 / 2020 13,021 1,153 6 14,180 18,765 1,664 3 20,432 2020 / 2019 17,518 1,701 17 19,236 14,072 1,511 26 15,609 2019 / 2018 12,435 1,554 50 14,039 10,242 932 58 11,232 2018 / 2017 8,711 1,031 80 9,822 7,087 857 44 7,988 2017 / 2016 5,992 821 126 6,939 10,951 914 76 11,941 Prior years 43,362 3,091 342 46,795 39,918 2,854 216 42,988 Total term loans 101,039 9,351 621 111,011 101,035 8,732 423 110,190 Revolving loans 319 893 0 1,212 528 548 4 1,080 Total 101,358 10,244 621 112,223 101,563 9,280 427 111,270 Loans collateralized by securities 2021 / 2020 2,061 371 0 2,432 1,682 1,547 149 3,378 2020 / 2019 1,273 1,170 0 2,443 1,019 324 0 1,343 2019 / 2018 562 210 0 772 499 64 0 563 2018 / 2017 49 25 113 187 61 41 0 102 2017 / 2016 96 15 0 111 200 127 0 327 Prior years 1,135 697 0 1,832 563 622 0 1,185 Total term loans 5,176 2,488 113 7,777 4,024 2,725 149 6,898 Revolving loans 1 43,499 3,154 143 46,796 41,749 3,038 104 44,891 Total 48,675 5,642 256 54,573 45,773 5,763 253 51,789 Consumer finance 2021 / 2020 1,494 737 1 2,232 1,297 903 5 2,205 2020 / 2019 733 548 10 1,291 519 505 22 1,046 2019 / 2018 450 413 19 882 279 237 23 539 2018 / 2017 419 221 18 658 81 154 17 252 2017 / 2016 50 116 15 181 16 57 10 83 Prior years 397 107 44 548 48 92 41 181 Total term loans 3,543 2,142 107 5,792 2,240 1,948 118 4,306 Revolving loans 493 75 90 658 328 88 81 497 Total 4,036 2,217 197 6,450 2,568 2,036 199 4,803 Consumer – total 2021 / 2020 16,576 2,261 7 18,844 21,744 4,114 157 26,015 2020 / 2019 19,524 3,419 27 22,970 15,610 2,340 48 17,998 2019 / 2018 13,447 2,177 69 15,693 11,020 1,233 81 12,334 2018 / 2017 9,179 1,277 211 10,667 7,229 1,052 61 8,342 2017 / 2016 6,138 952 141 7,231 11,167 1,098 86 12,351 Prior years 44,894 3,895 386 49,175 40,529 3,568 257 44,354 Total term loans 109,758 13,981 841 124,580 107,299 13,405 690 121,394 Revolving loans 44,311 4,122 233 48,666 42,605 3,674 189 46,468 Total 154,069 18,103 1,074 173,246 149,904 17,079 879 167,862 1 Lombard loans are generally classified as revolving loans. Corporate & institutional loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Real estate 2021 / 2020 5,254 2,724 2 7,980 6,054 2,792 106 8,952 2020 / 2019 4,614 2,443 6 7,063 2,902 1,611 0 4,513 2019 / 2018 2,429 1,129 2 3,560 1,849 1,133 24 3,006 2018 / 2017 1,350 661 1 2,012 1,033 346 72 1,451 2017 / 2016 778 178 2 958 1,591 285 25 1,901 Prior years 4,710 888 31 5,629 5,982 1,105 33 7,120 Total term loans 19,135 8,023 44 27,202 19,411 7,272 260 26,943 Revolving loans 884 338 138 1,360 1,027 172 69 1,268 Total 20,019 8,361 182 28,562 20,438 7,444 329 28,211 Commercial and industrial loans 2021 / 2020 5,353 8,965 94 14,412 7,724 11,621 310 19,655 2020 / 2019 4,225 6,802 108 11,135 3,851 6,411 133 10,395 2019 / 2018 3,177 5,027 157 8,361 1,781 4,321 247 6,349 2018 / 2017 1,309 3,403 170 4,882 964 1,981 60 3,005 2017 / 2016 831 1,480 37 2,348 809 1,248 22 2,079 Prior years 2,666 3,810 120 6,596 2,830 3,837 128 6,795 Total term loans 17,561 29,487 686 47,734 17,959 29,419 900 48,278 Revolving loans 14,311 8,278 475 23,064 12,913 8,908 464 22,285 Total 31,872 37,765 1,161 70,798 30,872 38,327 1,364 70,563 Financial institutions 2021 / 2020 2,829 1,055 40 3,924 3,386 697 43 4,126 2020 / 2019 2,249 271 44 2,564 1,973 132 39 2,144 2019 / 2018 745 142 1 888 960 432 9 1,401 2018 / 2017 684 377 9 1,070 97 92 0 189 2017 / 2016 69 38 0 107 37 102 20 159 Prior years 254 136 15 405 288 38 2 328 Total term loans 6,830 2,019 109 8,958 6,741 1,493 113 8,347 Revolving loans 7,093 364 1 7,458 5,718 419 1 6,138 Total 13,923 2,383 110 16,416 12,459 1,912 114 14,485 Governments and public institutions 2021 / 2020 427 38 0 465 174 33 0 207 2020 / 2019 178 58 0 236 135 20 10 165 2019 / 2018 99 20 20 139 80 0 0 80 2018 / 2017 57 11 0 68 35 0 0 35 2017 / 2016 30 0 0 30 74 1 0 75 Prior years 252 22 0 274 388 41 0 429 Total term loans 1,043 149 20 1,212 886 95 10 991 Revolving loans 15 0 0 15 19 0 0 19 Total 1,058 149 20 1,227 905 95 10 1,010 Corporate & institutional – total 2021 / 2020 13,863 12,782 136 26,781 17,338 15,143 459 32,940 2020 / 2019 11,266 9,574 158 20,998 8,861 8,174 182 17,217 2019 / 2018 6,450 6,318 180 12,948 4,670 5,886 280 10,836 2018 / 2017 3,400 4,452 180 8,032 2,129 2,419 132 4,680 2017 / 2016 1,708 1,696 39 3,443 2,511 1,636 67 4,214 Prior years 7,882 4,856 166 12,904 9,488 5,021 163 14,672 Total term loans 44,569 39,678 859 85,106 44,997 38,279 1,283 84,559 Revolving loans 22,303 8,980 614 31,897 19,677 9,499 534 29,710 Total 66,872 48,658 1,473 117,003 64,674 47,778 1,817 114,269 Total loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Loans held at amortized cost – total 2021 / 2020 30,439 15,043 143 45,625 39,082 19,257 616 58,955 2020 / 2019 30,790 12,993 185 43,968 24,471 10,514 230 35,215 2019 / 2018 19,897 8,495 249 28,641 15,690 7,119 361 23,170 2018 / 2017 12,579 5,729 391 18,699 9,358 3,471 193 13,022 2017 / 2016 7,846 2,648 180 10,674 13,678 2,734 153 16,565 Prior years 52,776 8,751 552 62,079 50,017 8,589 420 59,026 Total term loans 154,327 53,659 1,700 209,686 152,296 51,684 1,973 205,953 Revolving loans 66,614 13,102 847 80,563 62,282 13,173 723 76,178 Total 220,941 66,761 2,547 290,249 1 214,578 64,857 2,696 282,131 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 2Q21 and 4Q20, respectively. Credit quality of other financial assets held at amortized cost The following table presents the Group’s carrying value of other financial assets held at amortized cost by aggregated internal counterparty credit ratings “investment grade” and “non-investment grade”, by year of origination. Within the line items relating to the origination year, the first year represents the origination year of the current reporting period and the second year represents the origination year of the comparative reporting period. Other financial assets held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Other financial assets held at amortized cost 2019 / 2018 0 0 0 0 0 70 0 70 2018 / 2017 0 70 0 70 0 2 0 2 2017 / 2016 0 1 0 1 0 4 0 4 Prior years 0 3 0 3 0 0 0 0 Total term positions 0 74 0 74 0 76 0 76 Revolving positions 0 814 0 814 0 934 0 934 Total 0 888 0 888 0 1,010 0 1,010 Includes primarily mortgage servicing advances and failed purchases. Past due financial assets Generally, a financial asset is deemed past due if the principal and/or interest payment has not been received on its due date. Loans held at amortized cost – past due Current Past due Up to 31–60 61–90 More than 2Q21 (CHF million) Mortgages 111,521 167 45 27 463 702 112,223 Loans collateralized by securities 54,411 5 38 1 118 162 54,573 Consumer finance 5,750 476 15 48 161 700 6,450 Consumer 171,682 648 98 76 742 1,564 173,246 Real estate 28,161 91 122 4 184 401 28,562 Commercial and industrial loans 69,391 388 236 49 734 1,407 70,798 Financial institutions 16,278 72 0 0 66 138 16,416 Governments and public institutions 1,192 15 0 0 20 35 1,227 Corporate & institutional 115,022 566 358 53 1,004 1,981 117,003 Total loans held at amortized cost 286,704 1,214 456 129 1,746 3,545 290,249 1 4Q20 (CHF million) Mortgages 110,747 63 68 34 358 523 111,270 Loans collateralized by securities 51,668 17 0 0 104 121 51,789 Consumer finance 4,361 156 68 47 171 442 4,803 Consumer 166,776 236 136 81 633 1,086 167,862 Real estate 28,070 50 3 11 77 141 28,211 Commercial and industrial loans 69,060 630 54 137 682 1,503 70,563 Financial institutions 14,311 41 15 72 46 174 14,485 Governments and public institutions 969 37 4 0 0 41 1,010 Corporate & institutional 112,410 758 76 220 805 1,859 114,269 Total loans held at amortized cost 279,186 994 212 301 1,438 2,945 282,131 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 2Q21 and 4Q20, respectively. As of the end of 2Q21 and 4Q20, the Group did not have any loans that were past due more than 90 days and still accruing interest. Also, the Group did not have any other financial assets held at amortized cost that were past due. Non-accrual financial assets For loans held at amortized cost, non-accrual loans are comprised of non-performing loans and non-interest-earning loans. > Refer to “Note 1 – Summary of significant accounting policies” and “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on non-accrual loans. Non-accrual loans held at amortized cost 6M21 6M20 Amortized Amortized CHF million Mortgages 418 615 2 167 337 380 1 20 Loans collateralized by securities 105 298 3 0 122 377 3 75 Consumer finance 201 200 1 1 168 204 0 4 Consumer 724 1,113 6 168 627 961 4 99 Real estate 324 293 6 46 155 270 3 37 Commercial and industrial loans 925 790 8 30 682 978 21 41 Financial institutions 68 63 0 0 46 65 0 8 Governments and public institutions 0 20 0 0 0 0 0 0 Corporate & institutional 1,317 1,166 14 76 883 1,313 24 86 Total loans held at amortized cost 2,041 2,279 20 244 1,510 2,274 28 185 In the Group’s recovery management function covering the Investment Bank and Asia Pacific, a position is written down to its net carrying value once the credit provision is greater than 90% Collateral-dependent financial assets > Refer to “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on collateral-dependent financial assets. Collateral-dependent financial assets managed by the recovery management function covering the Investment Bank and Asia Pacific mainly include mortgages, revolving corporate loans, securities borrowing, trade finance exposures and lombard loans. For mortgages, property, guarantees and life insurance policies are the main collateral types. For revolving corporate loans, collateral includes mainly cash, inventory, oil and gas reserves and receivables. Securities borrowing exposures are mainly secured by pledged shares, bonds, investment fund units and money market instruments. Trade finance exposures are secured by cash and guarantees. For lombard loans, the Group holds collateral in the form of pledged shares, bonds, investment fund units and money market instruments as well as cash and life insurance policies. Since 2Q21, the collateral values used for the calculation of the collateral coverage ratio are considered up to the amount of the related collateral-dependent loan; previously, the collateral coverage ratio reflected the entire collateral value. The prior period collateral coverage ratio has been updated to conform to the current presentation. As of the end of 2Q21, the overall collateral coverage ratio was 95% 86% Collateral-dependent financial assets managed by the recovery management function for International Wealth Management mainly include ship finance exposures, commercial loans, lombard loans, residential mortgages and aviation finance exposures. Ship finance exposures are collateralized by vessel mortgages, corporate guarantees, insurance assignments as well as cash balances, securities deposits or other assets held with the Group. Collateral held against commercial loans include primarily guarantees issued by export credit agencies, other guarantees, private risk insurance, asset pledges and assets held with the Group (e.g., cash, securities deposits and others). Lombard loans are collateralized by pledged financial assets mainly in the form of cash, shares, bonds, investment fund units and money market instruments as well as life insurance policies and bank guarantees. Residential mortgages are secured by mortgage notes on residential real estate, life insurance policies as well as cash balances, securities deposits or other assets held with the Group. Aircraft finance exposures are collateralized by aircraft mortgages of business jets as well as corporate and/or personal guarantees, cash balances, securities deposits or other assets held with the Group. Collateral-dependent loans increased in 2Q21, mainly driven by an increase in lombard loans, partially offset by a decrease in aviation finance. The overall collateral coverage ratio decreased from 87% 84% Collateral-dependent financial assets managed by the recovery management function for Swiss Universal Bank mainly include residential mortgages and commercial mortgages. Collateral held against residential mortgages includes mainly mortgage notes on residential real estate, pledged capital awards in retirement plans and life insurance policies. For commercial mortgages, collateral held includes primarily mortgage notes on commercial real estate and cash balances, securities deposits or other assets held with the Group. The overall collateral coverage ratio in relation to the collateral-dependent financial assets decreased from 87% 86% Off-balance sheet credit exposures > Refer to “Note 1 – Summary of significant accounting policies” and “Note 20 – Financial instruments measured at amortized cost and credit losses” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the main risk characteristics and on estimating the provisions for expected credit losses on off-balance sheet credit exposures. Troubled debt restructurings and modifications Restructured financing receivables held at amortized cost 2Q21 1Q21 2Q20 Recorded Recorded Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 0 0 0 Commercial and industrial loans 4 19 15 10 371 367 1 2 1 Financial institutions 0 0 0 1 44 44 0 0 0 Total loans 5 21 17 11 415 411 3 118 117 6M21 6M20 Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 Commercial and industrial loans 14 390 382 7 32 15 Financial institutions 1 44 44 0 0 0 Total loans 16 436 428 9 148 131 Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring 2Q21 1Q21 2Q20 Number of Recorded Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 0 0 Commercial and industrial loans 0 0 0 0 3 12 Total loans 3 156 0 0 3 12 Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring (continued) 6M21 6M20 Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 Commercial and industrial loans 0 0 3 12 Total loans 3 156 3 12 In 6M21, the loan modifications of the Group included the increase of credit facilities, extended loan repayment terms, including postponed loan amortizations and extended maturity dates, interest rate concessions, waivers of principal and interest and changes in covenants. In March 2020, US federal banking regulators issued the “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (Revised)” (Interagency Statement). According to the Interagency Statement, short-term modifications made on a good faith basis in response to the COVID-19 crisis to borrowers that were otherwise current prior to the relief being granted would not be considered to be troubled debt restructurings. This includes short-term modifications such as payment deferrals, fee waivers, repayment term extensions or payment delays that are insignificant. The Interagency Statement was developed in consultation with the FASB and the Group has applied this guidance. The Group has granted short-term modifications to certain borrowers due to the COVID-19 crisis in the form of deferrals of capital and interest payments that are within the scope of this guidance and the loans subject to those deferrals have not been reported as troubled debt restructurings in restructured loans.
Bank
Financial instruments measured at amortized cost and credit losses	18 Financial instruments measured at amortized cost and credit losses > Refer to “Note 19 – Financial instruments measured at amortized cost and credit losses” in III – Condensed consolidated financial statements – Credit Suisse Group in the Credit Suisse Financial Report 2Q21 for further information. Overview of financial instruments measured at amortized cost – by balance sheet position 6M21 2020 1 Allowance Net 1 Allowance Net Cash and due from banks 145,226 0 145,226 137,683 (1) 137,682 Interest-bearing deposits with banks 1,245 2 0 1,245 1,235 4 (5) 1,230 Securities purchased under resale agreements and securities borrowing transactions 25,180 2 0 25,180 21,139 0 21,139 Loans 298,469 2,3 (1,411) 297,058 290,468 4,5 (1,535) 288,933 Brokerage receivables 37,503 2 (4,429) 33,074 35,944 4 (1) 35,943 Other assets 14,245 (39) 14,206 15,540 (41) 15,499 Total 521,868 (5,879) 515,989 502,009 (1,583) 500,426 1 Net of unearned income/deferred expenses, as applicable. 2 Excludes accrued interest for credit losses in the total amount of CHF 380 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 1 million to securities purchased under resale agreements and securities borrowing transactions, CHF 363 million to loans and CHF 15 million to brokerage receivables. These accrued interest balances are reported in other assets. 3 Includes endangered interest of CHF 88 million on non-accrual loans which are reported as part of the loans' amortized cost balance. 4 Excludes accrued interest for credit losses in the total amount of CHF 351 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 334 million to loans and CHF 16 million to brokerage receivables. These accrued interest balances are reported in other assets. 5 Includes endangered interest of CHF 87 million on non-accrual loans which are reported as part of the loans' amortized cost balance. Allowance for credit losses > Refer to “Note 19 – Financial instruments measured at amortized cost and credit losses” in III – Condensed consolidated financial statements – Credit Suisse Group in the Credit Suisse Financial Report 2Q21 and 1Q21 for further information on estimating expected credit losses in 6M21. Loans held at amortized cost Allowance for credit losses – loans held at amortized cost 6M21 6M20 Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 318 1,217 1,535 241 807 1,048 Current-period provision for expected credit losses 43 (79) (36) 183 533 716 of which provisions for interest 1 8 8 16 21 4 25 Gross write-offs (27) (101) (128) (24) (59) (83) Recoveries 4 0 4 5 2 7 Net write-offs (23) (101) (124) (19) (57) (76) Foreign currency translation impact and other adjustments, net 7 29 36 (6) (14) (20) Balance at end of period 345 1,066 1,411 399 1,269 1,668 of which individually evaluated 255 613 868 313 585 898 of which collectively evaluated 90 453 543 86 684 770 1 Represents the current-period net provision for accrued interest on non-accrual loans and lease financing transactions which is recognized as a reversal of interest income. > Refer to “Note 19 – Financial instruments measured at amortized cost and credit losses” in III – Condensed consolidated financial statements – Credit Suisse Group in the Credit Suisse Financial Report 2Q21 and 1Q21 for further information on the Bank’s gross write-offs in 6M21. Purchases, reclassifications and sales – loans held at amortized cost 6M21 6M20 Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 17 1,969 1,986 21 1,328 1,349 Reclassifications from loans held-for-sale 2 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 2,120 2,120 0 988 988 Sales 3 0 2,007 2,007 0 980 980 1 Includes drawdowns under purchased loan commitments. 2 Includes loans previously reclassified to held-for-sale that were not sold and were reclassified back to loans held-to-maturity. 3 All loans held at amortized cost which are sold are reclassified to loans held-for-sale on or prior to the date of the sale. Other financial assets Allowance for credit losses – other financial assets held at amortized cost 6M21 6M20 CHF million Balance at beginning of period 48 43 Current-period provision for expected credit losses 4,494 32 Gross write-offs (4) (9) Recoveries 0 1 Net write-offs (4) (8) Foreign currency translation impact and other adjustments, net (70) (4) Balance at end of period 4,468 63 of which individually evaluated 4,448 19 of which collectively evaluated 20 44 The current-period provision for expected credit losses on other financial assets held at amortized cost in 6M21 includes a total amount of CHF 4,500 million related to the failure of Archegos to meet its margin commitments. As of the end of 6M21, the related allowance is reported in brokerage receivables. Credit quality information Credit quality of loans held at amortized cost The following table presents the Bank’s carrying value of loans held at amortized cost by aggregated internal counterparty credit ratings “investment grade” and “non-investment grade” that are used as credit quality indicators for the purpose of this disclosure, by year of origination. Within the line items relating to the origination year, the first year represents the origination year of the current reporting period and the second year represents the origination year of the comparative reporting period. Consumer loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Mortgages 2021 / 2020 13,021 1,153 6 14,180 18,765 1,664 3 20,432 2020 / 2019 17,518 1,701 17 19,236 14,072 1,511 26 15,609 2019 / 2018 12,435 1,554 50 14,039 10,242 932 58 11,232 2018 / 2017 8,711 1,031 80 9,822 7,087 857 44 7,988 2017 / 2016 5,992 821 126 6,939 10,951 914 76 11,941 Prior years 43,362 3,091 342 46,795 39,918 2,854 216 42,988 Total term loans 101,039 9,351 621 111,011 101,035 8,732 423 110,190 Revolving loans 319 893 0 1,212 528 548 4 1,080 Total 101,358 10,244 621 112,223 101,563 9,280 427 111,270 Loans collateralized by securities 2021 / 2020 2,061 371 0 2,432 1,682 1,547 149 3,378 2020 / 2019 1,273 1,170 0 2,443 1,019 324 0 1,343 2019 / 2018 562 210 0 772 499 64 0 563 2018 / 2017 49 25 113 187 61 41 0 102 2017 / 2016 96 15 0 111 200 127 0 327 Prior years 1,135 697 0 1,832 563 622 0 1,185 Total term loans 5,176 2,488 113 7,777 4,024 2,725 149 6,898 Revolving loans 1 43,499 3,154 143 46,796 41,749 3,038 104 44,891 Total 48,675 5,642 256 54,573 45,773 5,763 253 51,789 Consumer finance 2021 / 2020 1,494 737 1 2,232 1,297 903 5 2,205 2020 / 2019 733 548 10 1,291 519 505 22 1,046 2019 / 2018 450 413 19 882 279 237 23 539 2018 / 2017 419 221 18 658 81 154 17 252 2017 / 2016 50 116 15 181 16 57 10 83 Prior years 397 107 44 548 48 92 41 181 Total term loans 3,543 2,142 107 5,792 2,240 1,948 118 4,306 Revolving loans 493 75 90 658 328 88 81 497 Total 4,036 2,217 197 6,450 2,568 2,036 199 4,803 Consumer – total 2021 / 2020 16,576 2,261 7 18,844 21,744 4,114 157 26,015 2020 / 2019 19,524 3,419 27 22,970 15,610 2,340 48 17,998 2019 / 2018 13,447 2,177 69 15,693 11,020 1,233 81 12,334 2018 / 2017 9,179 1,277 211 10,667 7,229 1,052 61 8,342 2017 / 2016 6,138 952 141 7,231 11,167 1,098 86 12,351 Prior years 44,894 3,895 386 49,175 40,529 3,568 257 44,354 Total term loans 109,758 13,981 841 124,580 107,299 13,405 690 121,394 Revolving loans 44,311 4,122 233 48,666 42,605 3,674 189 46,468 Total 154,069 18,103 1,074 173,246 149,904 17,079 879 167,862 1 Lombard loans are generally classified as revolving loans. Corporate & institutional loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Real estate 2021 / 2020 5,254 2,724 2 7,980 6,054 2,792 106 8,952 2020 / 2019 4,614 2,443 6 7,063 2,902 1,611 0 4,513 2019 / 2018 2,429 1,129 2 3,560 1,849 1,133 24 3,006 2018 / 2017 1,350 661 1 2,012 1,033 346 72 1,451 2017 / 2016 778 178 2 958 1,591 285 25 1,901 Prior years 4,710 888 31 5,629 5,982 1,105 33 7,120 Total term loans 19,135 8,023 44 27,202 19,411 7,272 260 26,943 Revolving loans 884 338 138 1,360 1,027 172 69 1,268 Total 20,019 8,361 182 28,562 20,438 7,444 329 28,211 Commercial and industrial loans 2021 / 2020 5,353 8,965 94 14,412 7,724 11,621 310 19,655 2020 / 2019 4,225 6,802 108 11,135 3,851 6,411 133 10,395 2019 / 2018 3,177 5,027 157 8,361 1,781 4,321 247 6,349 2018 / 2017 1,309 3,403 170 4,882 964 1,981 60 3,005 2017 / 2016 831 1,480 37 2,348 809 1,248 22 2,079 Prior years 2,666 3,810 108 6,584 2,830 3,837 116 6,783 Total term loans 17,561 29,487 674 47,722 17,959 29,419 888 48,266 Revolving loans 14,311 8,278 475 23,064 12,913 8,908 464 22,285 Total 31,872 37,765 1,149 70,786 30,872 38,327 1,352 70,551 Financial institutions 2021 / 2020 2,829 1,055 40 3,924 3,386 697 43 4,126 2020 / 2019 2,249 271 44 2,564 1,973 132 39 2,144 2019 / 2018 745 142 1 888 960 432 9 1,401 2018 / 2017 684 377 9 1,070 97 92 0 189 2017 / 2016 69 38 0 107 37 102 20 159 Prior years 254 136 15 405 288 38 2 328 Total term loans 6,830 2,019 109 8,958 6,741 1,493 113 8,347 Revolving loans 7,093 364 1 7,458 5,718 419 1 6,138 Total 13,923 2,383 110 16,416 12,459 1,912 114 14,485 Governments and public institutions 2021 / 2020 427 38 0 465 174 33 0 207 2020 / 2019 178 58 0 236 135 20 10 165 2019 / 2018 99 20 20 139 80 0 0 80 2018 / 2017 57 11 0 68 35 0 0 35 2017 / 2016 30 0 0 30 74 1 0 75 Prior years 252 22 0 274 388 41 0 429 Total term loans 1,043 149 20 1,212 886 95 10 991 Revolving loans 15 0 0 15 19 0 0 19 Total 1,058 149 20 1,227 905 95 10 1,010 Corporate & institutional – total 2021 / 2020 13,863 12,782 136 26,781 17,338 15,143 459 32,940 2020 / 2019 11,266 9,574 158 20,998 8,861 8,174 182 17,217 2019 / 2018 6,450 6,318 180 12,948 4,670 5,886 280 10,836 2018 / 2017 3,400 4,452 180 8,032 2,129 2,419 132 4,680 2017 / 2016 1,708 1,696 39 3,443 2,511 1,636 67 4,214 Prior years 7,882 4,856 154 12,892 9,488 5,021 151 14,660 Total term loans 44,569 39,678 847 85,094 44,997 38,279 1,271 84,547 Revolving loans 22,303 8,980 614 31,897 19,677 9,499 534 29,710 Total 66,872 48,658 1,461 116,991 64,674 47,778 1,805 114,257 Total loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Loans held at amortized cost – total 2021 / 2020 30,439 15,043 143 45,625 39,082 19,257 616 58,955 2020 / 2019 30,790 12,993 185 43,968 24,471 10,514 230 35,215 2019 / 2018 19,897 8,495 249 28,641 15,690 7,119 361 23,170 2018 / 2017 12,579 5,729 391 18,699 9,358 3,471 193 13,022 2017 / 2016 7,846 2,648 180 10,674 13,678 2,734 153 16,565 Prior years 52,776 8,751 540 62,067 50,017 8,589 408 59,014 Total term loans 154,327 53,659 1,688 209,674 152,296 51,684 1,961 205,941 Revolving loans 66,614 13,102 847 80,563 62,282 13,173 723 76,178 Total loans to third parties 220,941 66,761 2,535 290,237 214,578 64,857 2,684 282,119 Total loans to entities under common control 8,324 2 0 8,326 8,444 0 0 8,444 Total 229,265 66,763 2,535 298,563 223,022 64,857 2,684 290,563 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 6M21 and 2020, respectively. Credit quality of other financial assets held at amortized cost The following table presents the Bank’s carrying value of other financial assets held at amortized cost by aggregated internal counterparty credit ratings “investment grade” and “non-investment grade”, by year of origination. Within the line items relating to the origination year, the first year represents the origination year of the current reporting period and the second year represents the origination year of the comparative reporting period. Other financial assets held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total 6M21 (CHF million) Other financial assets held at amortized cost 2019 0 0 0 0 0 70 0 70 2018 0 70 0 70 0 2 0 2 2017 0 1 0 1 0 4 0 4 Prior years 0 3 0 3 0 0 0 0 Total term positions 0 74 0 74 0 76 0 76 Revolving positions 0 814 0 814 0 934 0 934 Total 0 888 0 888 0 1,010 0 1,010 Includes primarily mortgage servicing advances and failed purchases. Past due financial assets Loans held at amortized cost – past due Current Past due Up to 31–60 61–90 More than 6M21 (CHF million) Mortgages 111,521 167 45 27 463 702 112,223 Loans collateralized by securities 54,411 5 38 1 118 162 54,573 Consumer finance 5,750 476 15 48 161 700 6,450 Consumer 171,682 648 98 76 742 1,564 173,246 Real estate 28,161 91 122 4 184 401 28,562 Commercial and industrial loans 69,390 388 236 49 723 1,396 70,786 Financial institutions 16,278 72 0 0 66 138 16,416 Governments and public institutions 1,192 15 0 0 20 35 1,227 Corporate & institutional 115,021 566 358 53 993 1,970 116,991 Total loans to third parties 286,703 1,214 456 129 1,735 3,534 290,237 Total loans to entities under common control 8,326 0 0 0 0 0 8,326 Total loans held at amortized cost 295,029 1,214 456 129 1,735 3,534 298,563 1 2020 (CHF million) Mortgages 110,747 63 68 34 358 523 111,270 Loans collateralized by securities 51,668 17 0 0 104 121 51,789 Consumer finance 4,361 156 68 47 171 442 4,803 Consumer 166,776 236 136 81 633 1,086 167,862 Real estate 28,070 50 3 11 77 141 28,211 Commercial and industrial loans 69,060 630 54 137 670 1,491 70,551 Financial institutions 14,311 41 15 72 46 174 14,485 Governments and public institutions 969 37 4 0 0 41 1,010 Corporate & institutional 112,410 758 76 220 793 1,847 114,257 Total loans to third parties 279,186 994 212 301 1,426 2,933 282,119 1 Total loans to entities under common control 8,444 0 0 0 0 0 8,444 Total loans held at amortized cost 287,630 994 212 301 1,426 2,933 290,563 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 6M21 and 2020, respectively. As of the end of 6M21, the Bank did not have any loans that were past due more than 90 days and still accruing interest. Also, the Bank did not have any other financial assets held at amortized cost that were past due. Non-accrual financial assets Non-accrual loans held at amortized cost 6M21 6M20 Amortized Amortized CHF million Mortgages 418 615 2 167 337 380 1 20 Loans collateralized by securities 105 298 3 0 122 377 3 75 Consumer finance 201 200 1 1 168 204 0 4 Consumer 724 1,113 6 168 627 961 4 99 Real estate 324 293 6 46 155 270 3 37 Commercial and industrial loans 913 778 8 30 670 966 21 41 Financial institutions 68 63 0 0 46 65 0 8 Governments and public institutions 0 20 0 0 0 0 0 0 Corporate & institutional 1,305 1,154 14 76 871 1,301 24 86 Total loans held at amortized cost 2,029 2,267 20 244 1,498 2,262 28 185 Collateral-dependent financial assets > Refer to “Note 19 – Financial instruments measured at amortized cost and credit losses” in III – Condensed consolidated financial statements – Credit Suisse Group in the Credit Suisse Financial Report 2Q21 and 1Q21 for further information on the Bank’s collateral-dependent financial assets. Troubled debt restructurings and modifications Restructured financing receivables held at amortized cost 6M21 6M20 Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 Commercial and industrial loans 14 390 382 7 32 15 Financial institutions 1 44 44 0 0 0 Total loans 16 436 428 9 148 131 Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring 6M21 6M20 Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 Commercial and industrial loans 0 0 3 12 Total loans 3 156 3 12 In 6M21, the loan modifications of the Bank included the increase of credit facilities, extended loan repayment terms, including postponed loan amortizations and extended maturity dates, interest rate concessions, waivers of principal and interest and changes in covenants.

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2021
Goodwill	20 Goodwill Swiss International Credit 1 Gross amount of goodwill (CHF million) Balance at beginning of period 595 291 1,063 1,140 5,434 8,535 Foreign currency translation impact (5) (2) (11) (18) (20) (56) Balance at end of period 590 289 1,052 1,122 5,414 8,479 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 590 289 1,052 1,122 1,535 4,588 6M21 Gross amount of goodwill (CHF million) Balance at beginning of period 575 284 1,021 1,068 5,357 8,317 Foreign currency translation impact 15 5 31 54 57 162 Balance at end of period 590 289 1,052 1,122 5,414 8,479 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 590 289 1,052 1,122 1,535 4,588 1 Gross amount of goodwill and accumulated impairment include CHF 12 million related to legacy business transferred to the former Strategic Resolution Unit in 4Q15 and fully written off at the time of transfer, in addition to the divisions disclosed. In accordance with US GAAP, the Group continually assesses whether or not there has been a triggering event requiring a review of goodwill. The Board of Directors of the Group is currently conducting a review of the Group’s overall business strategy and risk appetite in addition to business reviews and potential personnel and organizational changes contemplated in response to both the Archegos and the supply chain finance fund matters previously disclosed. The Group has determined that these strategy and business reviews, and the associated and anticipated changes to the financial plans arising from these reviews, were goodwill triggering events for 2Q21 impacting all reporting units of the Group. As previously disclosed, effective April 1, 2021, the Asset Management business was separated from the International Wealth Management division and managed as a new separate division of the Group. For goodwill testing purposes the new Asset Management division is considered a reporting unit of the Group. Based on its goodwill impairment analysis performed, the Group concluded that the estimated fair value for all of the reporting units with goodwill exceeded their related carrying values and no impairments were necessary as of June 30, 2021. The fair value of the Investment Bank reporting unit exceeded its related carrying value by only 4% The carrying value of each reporting unit for the purpose of the goodwill impairment test is determined by considering the reporting units’ risk-weighted assets usage, leverage ratio exposure, deferred tax assets, goodwill, intangible assets and other CET1 capital relevant adjustments. Any residual equity, after considering the total of these elements, is allocated to the reporting units on a pro-rata basis. In estimating the fair value of its reporting units, the Group applied a combination of the market approach and the income approach. Under the market approach, consideration was given to price to projected earnings multiples or price to book value multiples for similarly traded companies and prices paid in recent transactions that have occurred in its industry or in related industries. Under the income approach, a discount rate was applied that reflects the risk and uncertainty related to the reporting unit’s projected cash flows, which were determined from the Group’s financial plan. In determining the estimated fair value, the Group relied upon its latest five-year financial plan which included significant management assumptions and estimates based on its view of current and future economic conditions and regulatory changes. The Group engaged the services of an independent valuation specialist to assist in the valuation of the Investment Bank and Asset Management reporting units as of June 30, 2021. The valuations were performed using a combination of the market approach and income approach. The results of the impairment evaluation of each reporting unit’s goodwill would be significantly impacted by adverse changes in the underlying parameters used in the valuation process. If actual outcomes or the future outlook adversely differ from management’s best estimates of the key economic assumptions and associated cash flows applied in the valuation of the reporting unit, the Group could potentially incur material impairment charges in the future.
Bank
Goodwill	19 Goodwill Swiss International 1 Gross amount of goodwill (CHF million) Balance at beginning of period 557 276 1,005 1,062 4,734 7,646 Foreign currency translation impact 15 6 34 54 37 146 Balance at end of period 572 282 1,039 1,116 4,771 7,792 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 572 282 1,039 1,116 892 3,901 1 Gross amount of goodwill and accumulated impairment include goodwill of CHF 12 million related to legacy business transferred to the former Strategic Resolution Unit in 4Q15 and fully written off at the time of transfer, in addition to the divisions disclosed. > Refer to “Note 20– Goodwill” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information.

Other assets and other liabilit

Other assets and other liabilities	6 Months Ended
	Jun. 30, 2021
Other assets and other liabilities	21 Other assets and other liabilities end of 2Q21 1Q21 4Q20 Other assets (CHF million) Cash collateral on derivative instruments 7,664 1 8,817 1 7,741 Cash collateral on non-derivative transactions 416 250 635 Derivative instruments used for hedging 457 295 131 Assets held-for-sale 8,169 13,193 7,077 of which loans 2 8,136 13,160 7,046 allowance for loans held-for-sale (51) (51) (48) of which real estate 3 31 27 27 of which long-lived assets 2 6 4 Premises, equipment and right-of-use assets 7,428 7,523 7,376 Assets held for separate accounts 107 107 102 Interest and fees receivable 4,155 4,838 4,255 Deferred tax assets 4,201 3,964 3,667 Prepaid expenses 693 688 448 of which cloud computing arrangement implementation costs 45 43 38 Failed purchases 1,793 1,595 1,451 Defined benefit pension and post-retirement plan assets 3,047 3,073 2,872 Other 4,041 4,559 3,882 Other assets 42,171 48,902 39,637 Other liabilities (CHF million) Cash collateral on derivative instruments 7,200 8,839 7,831 Cash collateral on non-derivative transactions 215 258 174 Derivative instruments used for hedging 12 39 45 Operating leases liabilities 2,652 2,740 2,759 Provisions 1,256 1,653 2,080 of which expected credit losses on off-balance sheet credit exposures 260 324 311 Restructuring liabilities 25 42 52 Liabilities held for separate accounts 107 107 102 Interest and fees payable 4,128 4,651 4,297 Current tax liabilities 622 569 555 Deferred tax liabilities 578 557 530 Failed sales 1,437 1,090 1,120 Defined benefit pension and post-retirement plan liabilities 414 425 410 Other 10,425 10,733 11,479 Other liabilities 29,071 31,703 31,434 1 As of the end of 1Q21, cash collateral on derivative instruments was net of an allowance for credit losses of CHF 4,394 million related to the failure of Archegos to meet its margin commitments; after the closeout of all derivatives including collateral in 2Q21, the remaining receivable balance and the related allowance for credit losses have been reclassified to brokerage receivables. 2 Included as of the end of 2Q21, 1Q21 and 4Q20 were CHF 363 million, CHF 471 million and CHF 262 million, respectively, in restricted loans, which represented collateral on secured borrowings. 3 As of the end of 2Q21, 1Q21 and 4Q20, real estate held-for-sale included foreclosed or repossessed real estate of CHF 8 million, CHF 8 million and CHF 8 million, respectively, of which CHF 8 million, CHF 8 million and CHF 8 million, respectively were related to residential real estate.
Bank
Other assets and other liabilities	20 Other assets and other liabilities end of 6M21 2020 Other assets (CHF million) Cash collateral on derivative instruments 7,664 7,741 Cash collateral on non-derivative transactions 416 635 Derivative instruments used for hedging 457 131 Assets held-for-sale 8,169 7,077 of which loans 1 8,136 7,046 allowance for loans held-for-sale (51) (48) of which real estate 2 31 27 of which long-lived assets 2 4 Premises, equipment and right-of-use assets 6,263 6,213 Assets held for separate accounts 107 102 Interest and fees receivable 4,225 4,397 Deferred tax assets 4,155 3,630 Prepaid expenses 570 367 of which cloud computing arrangement implementation costs 39 32 Failed purchases 1,793 1,451 Defined benefit pension and post-retirement plan assets 910 975 Other 4,050 3,855 Other assets 38,779 36,574 Other liabilities (CHF million) Cash collateral on derivative instruments 7,209 7,831 Cash collateral on non-derivative transactions 215 174 Derivative instruments used for hedging 12 45 Operating leases liabilities 1,896 1,981 Provisions 1,244 2,067 of which expected credit losses on off-balance sheet credit exposures 260 311 Restructuring liabilities 25 49 Liabilities held for separate accounts 107 102 Interest and fees payable 4,068 4,397 Current tax liabilities 612 542 Deferred tax liabilities 164 157 Failed sales 1,437 1,120 Defined benefit pension and post-retirement plan liabilities 406 403 Other 10,540 11,472 Other liabilities 27,935 30,340 1 Included as of the end of 6M21 and 2020 were CHF 363 million and CHF 262 million, respectively, in restricted loans, which represented collateral on secured borrowings. 2 As of the end of 6M21 and 2020, real estate held-for-sale included foreclosed or repossessed real estate of CHF 8 million and CHF 8 million, respectively, of which CHF 8 million and CHF 8 million, respectively, were related to residential real estate.

Long-term debt

Long-term debt	6 Months Ended
	Jun. 30, 2021
Long-term debt	22 Long-term debt Long-term debt end of 2Q21 1Q21 4Q20 Long-term debt (CHF million) Senior 143,874 141,689 133,056 Subordinated 25,034 27,196 26,285 Non-recourse liabilities from consolidated VIEs 1,319 1,568 1,746 Long-term debt 170,227 170,453 161,087 of which reported at fair value 69,436 72,312 70,976 of which structured notes 45,030 48,210 47,039 Structured notes by product end of 2Q21 1Q21 4Q20 Structured notes by product (CHF million) Equity 29,473 32,230 29,907 Fixed income 12,465 12,705 13,882 Credit 2,700 2,882 2,881 Other 392 393 369 Total structured notes 45,030 48,210 47,039
Bank
Long-term debt	21 Long-term debt Long-term debt end of 6M21 2020 Long-term debt (CHF million) Senior 96,726 94,768 Subordinated 66,247 63,765 Non-recourse liabilities from consolidated VIEs 1,319 1,746 Long-term debt 164,292 160,279 of which reported at fair value 68,486 70,243 of which structured notes 45,030 47,039 Structured notes by product end of 6M21 2020 Structured notes by product (CHF million) Equity 29,473 29,907 Fixed income 12,465 13,882 Credit 2,700 2,881 Other 392 369 Total structured notes 45,030 47,039

Accumulated other comprehensive

Accumulated other comprehensive income	6 Months Ended
	Jun. 30, 2021
Accumulated other comprehensive income	23 Accumulated other comprehensive income and additional share information Accumulated other comprehensive income/(loss) 1 Gains/ 2Q21 (CHF million) Balance at beginning of period 103 (15,534) 13 (3,662) 432 (2,019) (20,667) Increase/(decrease) (19) (471) 0 (89) 0 (514) (1,093) Reclassification adjustments, included in net income/(loss) (22) 0 0 78 (24) 31 63 Total increase/(decrease) (41) (471) 0 (11) (24) (483) (1,030) Balance at end of period 62 (16,005) 13 (3,673) 408 (2,502) (21,697) 1Q21 (CHF million) Balance at beginning of period 206 (17,528) 13 (3,727) 456 (2,570) (23,150) Increase/(decrease) (91) 1,994 0 (3) 0 505 2,405 Reclassification adjustments, included in net income/(loss) (12) 0 0 68 (24) 46 78 Total increase/(decrease) (103) 1,994 0 65 (24) 551 2,483 Balance at end of period 103 (15,534) 13 (3,662) 432 (2,019) (20,667) 2Q20 (CHF million) Balance at beginning of period 253 (15,064) 28 (3,617) 570 1,578 (16,252) Increase/(decrease) 13 (450) (47) 0 0 (2,680) (3,164) Reclassification adjustments, included in net income/(loss) 5 17 29 73 (34) 22 112 Total increase/(decrease) 18 (433) (18) 73 (34) (2,658) (3,052) Balance at end of period 271 (15,497) 10 (3,544) 536 (1,080) (19,304) 6M21 (CHF million) Balance at beginning of period 206 (17,528) 13 (3,727) 456 (2,570) (23,150) Increase/(decrease) (110) 1,523 0 (92) 0 (9) 1,312 Reclassification adjustments, included in net income/(loss) (34) 0 0 146 (48) 77 141 Total increase/(decrease) (144) 1,523 0 54 (48) 68 1,453 Balance at end of period 62 (16,005) 13 (3,673) 408 (2,502) (21,697) 6M20 (CHF million) Balance at beginning of period 28 (14,469) 30 (3,690) 604 (2,772) (20,269) Increase/(decrease) 168 (1,045) (52) 0 0 1,593 664 Reclassification adjustments, included in net income/(loss) 75 17 32 146 (68) 99 301 Total increase/(decrease) 243 (1,028) (20) 146 (68) 1,692 965 Balance at end of period 271 (15,497) 10 (3,544) 536 (1,080) (19,304) 1 No impairments on available-for-sale debt securities were recognized in net income/(loss) in 2Q21, 1Q21, 2Q20, 6M21 and 6M20. Details of significant reclassification adjustments in 2Q21 1Q21 2Q20 6M21 6M20 Reclassification adjustments, included in net income/(loss) (CHF million) Actuarial gains/(losses) Amortization of recognized actuarial losses 1 95 83 89 178 179 Tax expense/(benefit) (17) (15) (16) (32) (33) Net of tax 78 68 73 146 146 Net prior service credit/(cost) Amortization of recognized prior service credit/(cost) 1 (29) (30) (41) (59) (83) Tax expense 5 6 7 11 15 Net of tax (24) (24) (34) (48) (68) 1 These components are included in the computation of total benefit costs. Refer to "Note 27 – Pension and other post-retirement benefits" for further information. Additional share information 2Q21 1Q21 2Q20 6M21 6M20 Common shares issued Balance at beginning of period 2,447,747,720 2,447,747,720 2,556,011,720 2,447,747,720 2,556,011,720 Issuance of common shares 203,000,000 0 0 203,000,000 0 Balance at end of period 2,650,747,720 2,447,747,720 2,556,011,720 2,650,747,720 2,556,011,720 Treasury shares Balance at beginning of period (83,737,482) (41,602,841) (156,996,084) (41,602,841) (119,761,811) Sale of treasury shares 510,392,920 552,731,383 170,488,741 1,063,124,303 409,965,327 Repurchase of treasury shares (514,715,462) (599,319,336) (172,555,047) (1,114,034,798) (452,618,437) Issuance of common shares relating to mandatory convertible notes (203,000,000) 0 0 (203,000,000) 0 Conversion of mandatory convertible notes 106,805 0 0 106,805 0 Share-based compensation 51,473,883 4,453,312 44,650,431 55,927,195 48,002,962 Balance at end of period (239,479,336) (83,737,482) (114,411,959) (239,479,336) (114,411,959) Common shares outstanding Balance at end of period 2,411,268,384 1 2,364,010,238 2 2,441,599,761 2 2,411,268,384 1 2,441,599,761 2 1 At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 450,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,524,164 of these shares were reserved for capital instruments. 2 At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 653,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,193,477 of these shares were reserved for capital instruments.
Bank
Accumulated other comprehensive income	22 Accumulated other comprehensive income Accumulated other comprehensive income/(loss) Unrealized 1 Gains/ 6M21 (CHF million) Balance at beginning of period 205 (17,517) 13 (460) (11) (2,469) (20,239) Increase/(decrease) (109) 1,473 0 (85) (1) (5) 1,273 Reclassification adjustments, included in net income/(loss) (34) 0 0 0 1 77 44 Total increase/(decrease) (143) 1,473 0 (85) 0 72 1,317 Balance at end of period 62 (16,044) 13 (545) (11) (2,397) (18,922) 6M20 (CHF million) Balance at beginning of period 28 (14,560) 30 (417) (7) (2,620) (17,546) Increase/(decrease) 168 (1,015) (52) 0 0 1,515 616 Reclassification adjustments, included in net income/(loss) 75 17 32 7 0 99 230 Total increase/(decrease) 243 (998) (20) 7 0 1,614 846 Balance at end of period 271 (15,558) 10 (410) (7) (1,006) (16,700) 1 No impairments on available-for-sale debt securities were recognized in net income/(loss) in 6M21 and 6M20. Details on significant reclassification adjustments in 6M21 6M20 Reclassification adjustments, included in net income/(loss) (CHF million) Cumulative translation adjustments Reclassification adjustments 0 17 Actuarial gains/(losses) Amortization of recognized actuarial losses 1 (2) 7 Tax expense/(benefit) 2 0 Net of tax 0 7 1 These components are included in the computation of total benefit costs. Refer to "Note 26 – Pension and other post-retirement benefits" for further information.

Offsetting of financial assets

Offsetting of financial assets and financial liabilities	6 Months Ended
	Jun. 30, 2021
Offsetting of financial assets and financial liabilities	24 Offsetting of financial assets and financial liabilities The disclosures set out in the tables below include derivatives, reverse repurchase and repurchase agreements, and securities lending and borrowing transactions that: ■ ■ Similar agreements include derivative clearing agreements, global master repurchase agreements and global master securities lending agreements. Derivatives The Group transacts bilateral over-the-counter (OTC) derivatives (OTC derivatives) mainly under International Swaps and Derivatives Association (ISDA) Master Agreements and Swiss Master Agreements for OTC derivative instruments. These agreements provide for the net settlement of all transactions under the agreement through a single payment in the event of default or termination under the agreement. They allow the Group to offset balances from derivative assets and liabilities as well as the receivables and payables to related cash collateral transacted with the same counterparty. Collateral for OTC derivatives is received and provided in the form of cash and marketable securities. Such collateral may be subject to the standard industry terms of an ISDA Credit Support Annex. The terms of an ISDA Credit Support Annex provide that securities received or provided as collateral may be pledged or sold during the term of the transactions and must be returned upon maturity of the transaction. These terms also give each counterparty the right to terminate the related transactions upon the other counterparty’s failure to post collateral. Financial collateral received or pledged for OTC derivatives may also be subject to collateral agreements which restrict the use of financial collateral. For derivatives transacted with exchanges (exchange-traded derivatives) and central clearing counterparties (OTC-cleared derivatives), positive and negative replacement values (PRV/NRV) and related cash collateral may be offset if the terms of the rules and regulations governing these exchanges and central clearing counterparties permit such netting and offset. Where no such agreements or terms exist, fair values are recorded on a gross basis. Exchange-traded derivatives or OTC-cleared derivatives, which are fully margined and for which the daily margin payments constitute settlement of the outstanding exposure, are not included in the offsetting disclosures because they are not subject to offsetting due to the daily settlement. The daily margin payments, which are not settled until the next settlement cycle is conducted, are presented in brokerage receivables or brokerage payables. The notional amount for these daily settled derivatives is included in the fair value of derivative instruments table in “Note 28 – Derivatives and hedging activities”. Under US GAAP, the Group elected to account for substantially all financial instruments with an embedded derivative that is not considered clearly and closely related to the host contract at fair value. There is an exception for certain bifurcatable hybrid debt instruments which the Group did not elect to account for at fair value. However, these bifurcated embedded derivatives are generally not subject to enforceable master netting agreements and are not recorded as derivative instruments under trading assets and liabilities or other assets and other liabilities. Information on bifurcated embedded derivatives has therefore not been included in the offsetting disclosures. The following table presents the gross amount of derivatives subject to enforceable master netting agreements by contract and transaction type, the amount of offsetting, the amount of derivatives not subject to enforceable master netting agreements and the net amount presented in the consolidated balance sheets. Offsetting of derivatives 2Q21 4Q20 Derivative Derivative Derivative Derivative Gross derivatives subject to enforceable master netting agreements (CHF billion) OTC-cleared 5.1 3.7 6.1 4.6 OTC 52.1 48.6 68.2 65.7 Exchange-traded 0.1 0.1 0.5 0.6 Interest rate products 57.3 52.4 74.8 70.9 OTC-cleared 0.2 0.2 0.2 0.2 OTC 19.1 20.4 23.1 27.7 Foreign exchange products 19.3 20.6 23.3 27.9 OTC 9.3 14.1 10.7 15.1 Exchange-traded 23.2 22.1 19.9 20.4 Equity/index-related products 32.5 36.2 30.6 35.5 OTC-cleared 1.1 1.2 0.7 0.7 OTC 3.7 4.7 3.9 4.9 Credit derivatives 4.8 5.9 4.6 5.6 OTC 1.5 0.9 1.6 0.7 Exchange-traded 0.0 0.0 0.1 0.1 Other products 1 1.5 0.9 1.7 0.8 OTC-cleared 6.4 5.1 7.0 5.5 OTC 85.7 88.7 107.5 114.1 Exchange-traded 23.3 22.2 20.5 21.1 Total gross derivatives subject to enforceable master netting agreements 115.4 116.0 135.0 140.7 Offsetting (CHF billion) OTC-cleared (5.7) (5.0) (6.2) (5.4) OTC (74.6) (82.4) (94.4) (104.3) Exchange-traded (21.4) (21.5) (20.0) (20.3) Offsetting (101.7) (108.9) (120.6) (130.0) of which counterparty netting (87.7) (87.7) (103.2) (103.2) of which cash collateral netting (14.0) (21.2) (17.4) (26.8) Net derivatives presented in the consolidated balance sheets (CHF billion) OTC-cleared 0.7 0.1 0.8 0.1 OTC 11.1 6.3 13.1 9.8 Exchange-traded 1.9 0.7 0.5 0.8 Total net derivatives subject to enforceable master netting agreements 13.7 7.1 14.4 10.7 Total derivatives not subject to enforceable master netting agreements 2 10.8 5.2 11.2 6.8 Total net derivatives presented in the consolidated balance sheets 24.5 12.3 25.6 17.5 of which recorded in trading assets and trading liabilities 24.1 12.3 25.5 17.5 of which recorded in other assets and other liabilities 0.4 0.0 0.1 0.0 1 Primarily precious metals, commodity and energy products. 2 Represents derivatives where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. Reverse repurchase and repurchase agreements and securities lending and borrowing transactions Reverse repurchase and repurchase agreements are generally covered by master repurchase agreements. In certain situations, for example, in the event of default, all contracts under the agreements are terminated and are settled net in one single payment. Master repurchase agreements also include payment or settlement netting provisions in the normal course of business that state that all amounts in the same currency payable by each party to the other under any transaction or otherwise under the master repurchase agreement on the same date shall be set off. As permitted by US GAAP the Group has elected to net transactions under such agreements in the consolidated balance sheet when specific conditions are met. Transactions are netted if, among other conditions, they are executed with the same counterparty, have the same explicit settlement date specified at the inception of the transactions, are settled through the same securities transfer system and are subject to the same enforceable master netting agreement. The amounts offset are measured on the same basis as the underlying transaction (i.e., on an accrual basis or fair value basis). Securities lending and borrowing transactions are generally executed under master securities lending agreements with netting terms similar to ISDA Master Agreements. In certain situations, for example in the event of default, all contracts under the agreement are terminated and are settled net in one single payment. Transactions under these agreements are netted in the consolidated balance sheets if they meet the same right of offset criteria as for reverse repurchase and repurchase agreements. In general, most securities lending and borrowing transactions do not meet the criterion of having the same settlement date specified at inception of the transaction, and therefore they are not eligible for netting in the consolidated balance sheets. However, securities lending and borrowing transactions with explicit maturity dates may be eligible for netting in the consolidated balance sheets. Reverse repurchase and repurchase agreements are collateralized principally by government securities, money market instruments and corporate bonds and have terms ranging from overnight to a longer or unspecified period of time. In the event of counterparty default, the reverse repurchase agreement or securities lending agreement provides the Group with the right to liquidate the collateral held. As is the case in the Group’s normal course of business, a significant portion of the collateral received that may be sold or repledged was sold or repledged as of the end of 2Q21 and 4Q20. In certain circumstances, financial collateral received may be restricted during the term of the agreement (e.g., in tri-party arrangements). The following table presents the gross amount of securities purchased under resale agreements and securities borrowing transactions subject to enforceable master netting agreements, the amount of offsetting, the amount of securities purchased under resale agreements and securities borrowing transactions not subject to enforceable master netting agreements and the net amount presented in the consolidated balance sheets. Offsetting of securities purchased under resale agreements and securities borrowing transactions 2Q21 4Q20 Net Net Securities purchased under resale agreements and securities borrowing transactions (CHF billion) Securities purchased under resale agreements 74.9 (14.1) 60.8 55.8 (7.5) 48.3 Securities borrowing transactions 9.5 (0.5) 9.0 11.9 (0.4) 11.5 Total subject to enforceable master netting agreements 84.4 (14.6) 69.8 67.7 (7.9) 59.8 Total not subject to enforceable master netting agreements 1 24.8 – 24.8 19.3 – 19.3 Total 109.2 (14.6) 94.6 2 87.0 (7.9) 79.1 2 1 Represents securities purchased under resale agreements and securities borrowing transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 69,465 million and CHF 57,994 million of the total net amount as of the end of 2Q21 and 4Q20, respectively, are reported at fair value. The following table presents the gross amount of securities sold under repurchase agreements and securities lending transactions subject to enforceable master netting agreements, the amount of offsetting, the amount of securities sold under repurchase agreements and securities lending transactions not subject to enforceable master netting agreements and the net amount presented in the consolidated balance sheets. Offsetting of securities sold under repurchase agreements and securities lending transactions 2Q21 4Q20 Net Net Securities sold under repurchase agreements and securities lending transactions (CHF billion) Securities sold under repurchase agreements 29.5 (14.6) 14.9 26.0 (7.9) 18.1 Securities lending transactions 3.0 0.0 3.0 3.5 0.0 3.5 Obligation to return securities received as collateral, at fair value 37.7 0.0 37.7 49.9 0.0 49.9 Total subject to enforceable master netting agreements 70.2 (14.6) 55.6 79.4 (7.9) 71.5 Total not subject to enforceable master netting agreements 1 4.0 – 4.0 3.1 – 3.1 Total 74.2 (14.6) 59.6 82.5 (7.9) 74.6 of which securities sold under repurchase agreements and securities lending transactions 35.5 (14.6) 20.9 2 31.7 (7.9) 23.8 2 of which obligation to return securities received as collateral, at fair value 38.7 0.0 38.7 50.8 0.0 50.8 1 Represents securities sold under repurchase agreements and securities lending transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 10,983 million and CHF 13,594 million of the total net amount as of the end of 2Q21 and 4Q20, respectively, are reported at fair value. The following table presents the net amount presented in the consolidated balance sheets of financial assets and liabilities subject to enforceable master netting agreements and the gross amount of financial instruments and cash collateral not offset in the consolidated balance sheets. The table excludes derivatives, reverse repurchase and repurchase agreements and securities lending and borrowing transactions not subject to enforceable master netting agreements where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. Net exposure reflects risk mitigation in the form of collateral. Amounts not offset in the consolidated balance sheets 2Q21 4Q20 1 Cash 1 1 Cash 1 Financial assets subject to enforceable master netting agreements (CHF billion) Derivatives 13.7 5.1 0.0 8.6 14.4 5.5 0.1 8.8 Securities purchased under resale agreements 60.8 60.8 0.0 0.0 48.3 48.3 0.0 0.0 Securities borrowing transactions 9.0 8.8 0.0 0.2 11.5 11.1 0.0 0.4 Total financial assets subject to enforceable master netting agreements 83.5 74.7 0.0 8.8 74.2 64.9 0.1 9.2 Financial liabilities subject to enforceable master netting agreements (CHF billion) Derivatives 7.1 1.4 0.0 5.7 10.7 2.2 0.0 8.5 Securities sold under repurchase agreements 14.9 14.9 0.0 0.0 18.1 18.1 0.0 0.0 Securities lending transactions 3.0 2.6 0.0 0.4 3.5 3.2 0.0 0.3 Obligation to return securities received as collateral, at fair value 37.7 32.4 0.0 5.3 49.9 43.4 0.0 6.5 Total financial liabilities subject to enforceable master netting agreements 62.7 51.3 0.0 11.4 82.2 66.9 0.0 15.3 1 The total amount reported in financial instruments (recognized financial assets and financial liabilities and non-cash financial collateral) and cash collateral is limited to the amount of the related instruments presented in the consolidated balance sheets and therefore any over-collateralization of these positions is not included. Net exposure is subject to further credit mitigation through the transfer of the exposure to other market counterparties by the use of credit default swaps and credit insurance contracts. Therefore, the net exposure presented in the table above is not representative of the Group’s counterparty exposure.
Bank
Offsetting of financial assets and financial liabilities	23 Offsetting of financial assets and financial liabilities > Refer to “Note 24 – Offsetting of financial assets and financial liabilities” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information. Offsetting of derivatives 6M21 2020 Derivative Derivative Derivative Derivative Gross derivatives subject to enforceable master netting agreements (CHF billion) OTC-cleared 5.1 3.7 6.1 4.6 OTC 52.2 48.6 68.2 65.7 Exchange-traded 0.1 0.1 0.5 0.6 Interest rate products 57.4 52.4 74.8 70.9 OTC-cleared 0.2 0.2 0.2 0.2 OTC 19.1 20.4 23.1 27.7 Foreign exchange products 19.3 20.6 23.3 27.9 OTC 9.3 14.1 10.7 15.1 Exchange-traded 23.2 22.1 19.9 20.4 Equity/index-related products 32.5 36.2 30.6 35.5 OTC-cleared 1.1 1.2 0.7 0.7 OTC 3.7 4.7 3.9 4.9 Credit derivatives 4.8 5.9 4.6 5.6 OTC 1.5 0.9 1.6 0.8 Exchange-traded 0.0 0.0 0.1 0.1 Other products 1 1.5 0.9 1.7 0.9 OTC-cleared 6.4 5.1 7.0 5.5 OTC 85.8 88.7 107.5 114.2 Exchange-traded 23.3 22.2 20.5 21.1 Total gross derivatives subject to enforceable master netting agreements 115.5 116.0 135.0 140.8 Offsetting (CHF billion) OTC-cleared (5.7) (5.0) (6.2) (5.4) OTC (74.7) (82.4) (94.4) (104.4) Exchange-traded (21.4) (21.5) (20.0) (20.3) Offsetting (101.8) (108.9) (120.6) (130.1) of which counterparty netting (87.8) (87.8) (103.2) (103.2) of which cash collateral netting (14.0) (21.1) (17.4) (26.9) Net derivatives presented in the consolidated balance sheets (CHF billion) OTC-cleared 0.7 0.1 0.8 0.1 OTC 11.1 6.3 13.1 9.8 Exchange-traded 1.9 0.7 0.5 0.8 Total net derivatives subject to enforceable master netting agreements 13.7 7.1 14.4 10.7 Total derivatives not subject to enforceable master netting agreements 2 10.8 5.2 11.2 6.8 Total net derivatives presented in the consolidated balance sheets 24.5 12.3 25.6 17.5 of which recorded in trading assets and trading liabilities 24.1 12.3 25.5 17.5 of which recorded in other assets and other liabilities 0.4 0.0 0.1 0.0 1 Primarily precious metals, commodity and energy products. 2 Represents derivatives where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. Offsetting of securities purchased under resale agreements and securities borrowing transactions 6M21 2020 Net Net Securities purchased under resale agreements and securities borrowing transactions (CHF billion) Securities purchased under resale agreements 74.9 (14.1) 60.8 55.8 (7.5) 48.3 Securities borrowing transactions 9.5 (0.5) 9.0 11.9 (0.4) 11.5 Total subject to enforceable master netting agreements 84.4 (14.6) 69.8 67.7 (7.9) 59.8 Total not subject to enforceable master netting agreements 1 24.8 – 24.8 19.3 – 19.3 Total 109.2 (14.6) 94.6 2 87.0 (7.9) 79.1 2 1 Represents securities purchased under resale agreements and securities borrowing transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 69,465 million and CHF 57,994 million of the total net amount as of the end of 6M21 and 2020, respectively, are reported at fair value. Offsetting of securities sold under repurchase agreements and securities lending transactions 6M21 2020 Net Net Securities sold under repurchase agreements and securities lending transactions (CHF billion) Securities sold under repurchase agreements 29.6 (14.6) 15.0 26.1 (7.9) 18.2 Securities lending transactions 3.0 0.0 3.0 3.5 0.0 3.5 Obligation to return securities received as collateral, at fair value 37.7 0.0 37.7 49.9 0.0 49.9 Total subject to enforceable master netting agreements 70.3 (14.6) 55.7 79.5 (7.9) 71.6 Total not subject to enforceable master netting agreements 1 4.0 – 4.0 3.1 – 3.1 Total 74.3 (14.6) 59.7 82.6 (7.9) 74.7 of which securities sold under repurchase agreements and securities lending transactions 35.6 (14.6) 21.0 2 31.8 (7.9) 23.9 2 of which obligation to return securities received as collateral, at fair value 38.7 0.0 38.7 50.8 0.0 50.8 1 Represents securities sold under repurchase agreements and securities lending transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 11,080 million and CHF 13,688 million of the total net amount as of the end of 6M21 and 2020, respectively, are reported at fair value. Amounts not offset in the consolidated balance sheets 6M21 2020 1 Cash 1 1 Cash 1 Financial assets subject to enforceable master netting agreements (CHF billion) Derivatives 13.7 5.1 0.0 8.6 14.4 5.5 0.1 8.8 Securities purchased under resale agreements 60.8 60.8 0.0 0.0 48.3 48.3 0.0 0.0 Securities borrowing transactions 9.0 8.8 0.0 0.2 11.5 11.1 0.0 0.4 Total financial assets subject to enforceable master netting agreements 83.5 74.7 0.0 8.8 74.2 64.9 0.1 9.2 Financial liabilities subject to enforceable master netting agreements (CHF billion) Derivatives 7.1 1.4 0.0 5.7 10.7 2.2 0.0 8.5 Securities sold under repurchase agreements 15.0 15.0 0.0 0.0 18.2 18.2 0.0 0.0 Securities lending transactions 3.0 2.6 0.0 0.4 3.5 3.2 0.0 0.3 Obligation to return securities received as collateral, at fair value 37.7 32.4 0.0 5.3 49.9 43.4 0.0 6.5 Total financial liabilities subject to enforceable master netting agreements 62.8 51.4 0.0 11.4 82.3 67.0 0.0 15.3 1 The total amount reported in financial instruments (recognized financial assets and financial liabilities and non-cash financial collateral) and cash collateral is limited to the amount of the related instruments presented in the consolidated balance sheets and therefore any over-collateralization of these positions is not included.

Tax

Tax	6 Months Ended
	Jun. 30, 2021
Tax	25 Tax The 2Q21 income tax charge of CHF 566 million, resulting in an effective tax rate of 69.6% Net deferred tax assets related to net operating losses (NOL), net deferred tax assets on temporary differences and net deferred tax liabilities are presented in the following manner. Nettable gross deferred tax liabilities are allocated on a pro-rata basis to gross deferred tax assets on NOL and gross deferred tax assets on temporary differences. This approach is aligned with the underlying treatment of netting gross deferred tax assets and liabilities under the Basel III framework. Valuation allowances have been allocated against such deferred tax assets on NOL first, with any remainder allocated to such deferred tax assets on temporary differences. This presentation is considered the most appropriate disclosure given the underlying nature of the gross deferred tax balances. As of June 30, 2021, the Group had accumulated undistributed earnings from foreign subsidiaries of CHF 19.4 billion, which are considered indefinitely reinvested. The Group would need to accrue and pay taxes on these undistributed earnings if such earnings were repatriated. No deferred tax liability was recorded in respect of those amounts, as these earnings are considered indefinitely reinvested. It is not practicable to estimate the amount of unrecognized deferred tax liabilities for these undistributed foreign earnings. The Group is currently subject to ongoing tax audits, inquiries and litigation with the tax authorities in a number of jurisdictions, including Brazil, the Netherlands, Germany, the US, the UK and Switzerland. Although the timing of completion is uncertain, it is reasonably possible that some of these will be resolved within 12 months of the reporting date. It is reasonably possible that there will be a decrease between zero and CHF 60 million in unrecognized tax benefits within 12 months of the reporting date. The Group remains open to examination from federal, state, provincial or similar local jurisdictions from the following years onward in these major countries: Brazil – 2016; Switzerland – 2015 (federal and Zurich cantonal level); the UK – 2012; the Netherlands – 2011; and the US – 2010. Effective tax rate in 2Q21 1Q21 2Q20 6M21 6M20 Effective tax rate (%) 69.6 69.5 25.2 71.4 10.2 Tax expense reconciliation in 2Q21 Income tax expense computed at the Swiss statutory tax rate of 18.5% (CHF million) 150 Increase/(decrease) in income taxes resulting from Foreign tax rate differential (45) Changes in tax law and rates (31) Other non-deductible expenses 140 Changes in deferred tax valuation allowance 292 Lower taxed income (40) Income taxable to noncontrolling interests 15 (Windfall tax benefits)/shortfall tax charges on share-based compensation 31 Other 54 Income tax expense 566 Foreign tax rate differential 2Q21 included a foreign tax impact of CHF 45 million, mainly driven by the estimated current year earnings mix. Changes in tax law and rates 2Q21 included the impact of CHF 31 million related to the tax rate change in the UK. Other non-deductible expenses 2Q21 included the impact of CHF 140 million relating to non-deductible interest expenses, the UK bank levy and other non-deductible expenses. Changes in deferred tax valuation allowance 2Q21 included the impact of the estimated current year earnings, resulting in an increase in the valuation allowance of CHF 310 million, mainly in respect of the Group’s operating entities in the UK. This was partially offset by a decrease in the valuation allowance of CHF 18 million, mainly in respect of one of the Group’s operating entities in Switzerland. Lower taxed income 2Q21 primarily included the impact of CHF 26 million related to non-taxable life insurance income and CHF 13 million related to non-taxable dividend income. The remaining balance included various smaller items. Other 2Q21 included the impact of CHF 54 million, which mainly reflected the tax impact of CHF 26 million relating to withholding taxes, CHF 25 million relating to an accounting standard implementation transition adjustment for own credit movements, CHF 10 million relating to the current year base erosion and anti-abuse tax (BEAT) provision, CHF 7 million relating to own credit valuation movements and CHF 5 million relating to tax contingency accruals. This was partially offset by the tax benefit of CHF 22 million relating to prior years’ adjustments. The remaining balance included various smaller items. Net deferred tax assets end of 2Q21 1Q21 Net deferred tax assets (CHF million) Deferred tax assets 4,201 3,964 of which net operating losses 1,380 1,011 of which deductible temporary differences 2,821 2,953 Deferred tax liabilities (578) (557) Net deferred tax assets 3,623 3,407
Bank
Tax	24 Tax The 6M21 income tax expense of CHF 6 million, resulting in an effective tax rate of 40.0% Net deferred tax assets related to net operating losses (NOL), net deferred tax assets on temporary differences and net deferred tax liabilities are presented in the following manner. Nettable gross deferred tax liabilities are allocated on a pro-rata basis to gross deferred tax assets on NOL and gross deferred tax assets on temporary differences. This approach is aligned with the underlying treatment of netting gross deferred tax assets and liabilities under the Basel III framework. Valuation allowances have been allocated against such deferred tax assets on NOL first, with any remainder allocated to such deferred tax assets on temporary differences. This presentation is considered the most appropriate disclosure given the underlying nature of the gross deferred tax balances. As of June 30, 2021, the Bank had accumulated undistributed earnings from foreign subsidiaries of CHF 19.0 billion which are considered indefinitely reinvested. The Bank would need to accrue and pay taxes on these undistributed earnings if such earnings were repatriated. No deferred tax liability was recorded in respect of those amounts, as these earnings are considered indefinitely reinvested. It is not practicable to estimate the amount of unrecognized deferred tax liabilities for these undistributed foreign earnings. The Bank is currently subject to ongoing tax audits, inquiries and litigation with the tax authorities in a number of jurisdictions, including Brazil, the Netherlands, Germany, the US, the UK and Switzerland. Although the timing of completion is uncertain, it is reasonably possible that some of these will be resolved within 12 months of the reporting date. It is reasonably possible that there will be a decrease between zero and CHF 60 million in unrecognized tax benefits within 12 months of the reporting date. The Bank remains open to examination from federal, state, provincial or similar local jurisdictions from the following years onward in these major countries: Brazil – 2016; Switzerland – 2015 (federal and Zurich cantonal level); the UK – 2012; the Netherlands – 2011, and the US – 2010. Effective tax rate in 6M21 6M20 Effective tax rate (%) 40.0 9.5 Tax expense reconciliation in 6M21 Income tax expense computed at the Swiss statutory tax rate of 18.5% (CHF million) 3 Increase/(decrease) in income taxes resulting from Foreign tax rate differential (50) Changes in tax law and rates (27) Other non-deductible expenses 49 Changes in deferred tax valuation allowance 49 Lower taxed income (7) Income taxable to noncontrolling interests 2 (Windfall tax benefits)/shortfall tax charges on share-based compensation 29 Other (42) Income tax expense 6 Foreign tax rate differential 6M21 included a foreign tax impact of CHF 50 million, mainly driven by the estimated current year earnings mix. Changes in tax law and rates 6M21 included the impact of CHF 27 million related to the tax rate change in the UK. Other non-deductible expenses 6M21 included the impact of CHF 49 million relating to non-deductible interest expenses, the UK bank levy and other non-deductible costs. Changes in deferred tax valuation allowance 6M21 included the impact of the estimated current year earnings, resulting in an increase in the valuation allowance of CHF 54 million, mainly in respect of the Bank’s operating entities in the UK. This was partially offset by a decrease in the valuation allowance of CHF 5 million, mainly in respect of one of the Bank’s operating entities in Switzerland. Lower taxed income 6M21 primarily included the impacts of CHF 4 million related to non-taxable life insurance income and CHF 3 million related to non-taxable dividend income. The remaining balance included various smaller items. Other 6M21 included a tax benefit of CHF 42 million, which mainly reflected the tax impact of CHF 44 million relating to prior years’ adjustments and CHF 10 million relating to tax contingency accruals. This was partially offset by CHF 5 million relating to withholding taxes, CHF 4 million relating to an accounting standard implementation transition adjustment for own credit movements and CHF 1 million relating to the current year base erosion and anti-abuse tax (BEAT) provision. The remaining balance included various smaller items. Net deferred tax assets end of 6M21 2020 Net deferred tax assets (CHF million) Deferred tax assets 4,155 3,630 of which net operating losses 1,371 1,064 of which deductible temporary differences 2,784 2,566 Deferred tax liabilities (164) (157) Net deferred tax assets 3,991 3,473

Employee deferred compensation

Employee deferred compensation	6 Months Ended
	Jun. 30, 2021
Employee deferred compensation	26 Employee deferred compensation The Group’s current and previous deferred compensation plans include share awards, performance share awards, Contingent Capital Awards (CCA), deferred cash awards and retention awards. > Refer to “Note 30 – Employee deferred compensation” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information. The following tables show the compensation expense for deferred compensation awards recognized in the consolidated statements of operations, the estimated unrecognized expense for deferred compensation awards granted in 2Q21 and prior periods and the remaining requisite service period over which the unrecognized expense will be recognized. The estimated unrecognized compensation expense was based on the fair value of each award on the grant date and included the current estimated outcome of relevant performance criteria and estimated future forfeitures, but no estimate for future mark-to-market adjustments. Deferred compensation expense in 2Q21 1Q21 2Q20 6M21 6M20 Deferred compensation expense (CHF million) Share awards 142 134 144 276 299 Performance share awards 111 109 120 220 233 Contingent Capital Awards 83 61 100 144 86 Deferred cash awards 102 49 138 151 148 Retention awards 26 13 10 39 19 Total deferred compensation expense 464 366 512 830 785 Estimated unrecognized deferred compensation end of 2Q21 Estimated unrecognized compensation expense (CHF million) Share awards 670 Performance share awards 392 Contingent Capital Awards 275 Deferred cash awards 333 Retention Awards 307 Total 1,977 Aggregate remaining weighted-average requisite service period (years) Aggregate remaining weighted-average requisite service period 1.3 Deferred cash awards In 2Q21, the Group granted deferred fixed cash compensation of CHF 12 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date. Amortization of this compensation in 2Q21 totaled CHF 32 million, of which CHF 3 million was related to awards granted in 2Q21. In 3Q21, the Group granted deferred fixed cash compensation of CHF 95 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date. Retention awards In 2Q21, the Group granted deferred cash and share retention awards of CHF 235 million, mainly in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Amortization of retention awards in 2Q21 totaled CHF 26 million, of which CHF 9 million was related to awards granted in 2Q21. In 3Q21, the Group granted deferred share retention awards of CHF 24 million in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Share-based award activity 2Q21 6M21 Performance Performance Share-based award activities Balance at beginning of period 175.1 126.3 126.3 91.7 Granted 24.1 0.0 78.1 37.8 Settled (45.7) (30.1) (50.4) (33.0) Forfeited (2.4) (0.7) (2.9) (1.0) Balance at end of period 151.1 95.5 151.1 95.5 of which vested 12.8 13.9 12.8 13.9 of which unvested 138.3 81.6 138.3 81.6
Bank
Employee deferred compensation	25 Employee deferred compensation > Refer to “Note 26 – Employee deferred compensation” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and “Note 29 – Employee deferred compensation” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Deferred compensation expense in 6M21 6M20 Deferred compensation expense (CHF million) Share awards 266 289 Performance share awards 213 220 Contingent Capital Awards 140 83 Deferred cash awards 169 143 Retention awards 39 19 Total deferred compensation expense 827 754 Estimated unrecognized deferred compensation end of 6M21 Estimated unrecognized compensation expense (CHF million) Share awards 652 Performance share awards 378 Contingent Capital Awards 265 Deferred cash awards 331 Retention awards 307 Total 1,933 Aggregate remaining weighted-average requisite service period (years) Aggregate remaining weighted-average requisite service period 1.3 6M21 activity In 6M21, the Bank granted share awards, performance share awards, Contingent Capital Awards (CCA) and upfront cash awards as part of the 2020 deferred variable compensation. Expense recognition for these awards began in 6M21 and will continue over the remaining service or vesting period of each respective award. Share awards In 6M21, the Bank granted 76.5 million share awards at a weighted-average share price of CHF 11.52. Each share award granted entitles the holder of the award to receive one Group share, subject to service conditions. Share awards vest over three years with one third of the share awards vesting on each of the three anniversaries of the grant date (ratable vesting), with the exception of awards granted to individuals classified as risk managers or senior managers under the UK Prudential Regulatory Authority (PRA) Remuneration Code or similar regulations in other jurisdictions. Under the UK PRA Remuneration Code or similar regulations in other jurisdictions, share awards granted to risk managers vest over five years with one fifth of the award vesting on each of the five anniversaries of the grant date, while share awards granted to senior managers vest over five years commencing on the third anniversary of the grant date, with one fifth of the award vesting on each of the third to seventh anniversaries of the grant date. Share awards are expensed over the service period of the awards. Performance share awards In 6M21, the Bank granted 36.6 million performance share awards at a weighted-average share price of CHF 12.44. Performance share awards are similar to share awards, except that the full balance of outstanding performance share awards, including those awarded in prior years, are subject to performance-based malus provisions. Contingent Capital Awards In 6M21, the Bank awarded CHF 245 million of CCA. CCA are scheduled to vest on the third anniversary of the grant date, other than those granted to individuals classified as risk managers or senior managers under the UK PRA Remuneration Code or similar regulations in other jurisdictions, where CCA vest on the fifth and seventh anniversaries of the grant date, respectively, and will be expensed over the vesting period. Deferred cash awards In 6M21, the Bank granted deferred fixed cash compensation of CHF 163 million to certain employees in the Americas. This compensation will be expensed in the Investment Bank and International Wealth Management divisions over a three-year vesting period from the grant date. Amortization of this compensation in 6M21 totaled CHF 67 million, of which CHF 44 million was related to awards granted in 6M21. In 3Q21, the Bank granted deferred fixed cash compensation of CHF 95 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date. In 6M21, the Bank granted upfront cash awards of CHF 59 million to certain managing directors and directors in the International Wealth Management division. Amortization of this compensation in 6M21 totaled CHF 43 million, of which CHF 15 million was related to awards granted in 6M21. Retention awards In 6M21, the Bank granted deferred cash and share retention awards of CHF 322 million, mainly in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Amortization of retention awards in 6M21 totaled CHF 39 million, of which CHF 31 million was related to awards granted in 6M21. In 3Q21, the Bank granted deferred share retention awards of CHF 24 million in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Share-based award activity 6M21 Performance Share-based award activities Balance at beginning of period 115.2 88.0 Granted 76.5 36.6 Settled (47.7) (31.8) Forfeited (2.7) (1.0) Balance at end of period 141.3 91.8 of which vested 11.3 13.0 of which unvested 130.0 78.8

Pension and other post-retireme

Pension and other post-retirement benefits	6 Months Ended
	Jun. 30, 2021
Pension and other post-retirement benefits	27 Pension and other post-retirement benefits The Group sponsors defined contribution pension plans, defined benefit pension plans and other post-retirement defined benefit plans. The Group recognized expenses of CHF 60 million, CHF 70 million, CHF 58 million, CHF 130 million and CHF 154 million, related to its defined contribution pension plans in 2Q21, 1Q21, 2Q20, 6M21 and 6M20, respectively. > Refer to “Note 32 – Pension and other post-retirement benefits” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information. The Group expects to contribute CHF 338 million to the Swiss and international defined benefit plans and other post-retirement defined benefit plans in 2021. As of the end of 2Q21, CHF 180 million of contributions have been made. Components of net periodic benefit costs in 2Q21 1Q21 2Q20 6M21 6M20 Net periodic benefit costs/(credits) (CHF million) Service costs on benefit obligation 60 60 55 120 109 Interest costs on benefit obligation 15 15 23 30 47 Expected return on plan assets (120) (123) (109) (243) (219) Amortization of recognized prior service cost/(credit) (31) (29) (41) (60) (83) Amortization of recognized actuarial losses 93 93 87 186 174 Settlement losses/(gains) 2 (10) 2 (8) 5 Curtailment losses/(gains) 2 (1) 0 1 0 Special termination benefits 3 10 0 13 3 Net periodic benefit costs 24 15 17 39 36 Service costs on benefit obligation are reflected in compensation and benefits. Other components of net periodic benefit costs are reflected in general and administrative expenses or, except for 2Q20 and 6M20, in restructuring expenses.
Bank
Pension and other post-retirement benefits	26 Pension and other post-retirement benefits > Refer to “Note 27 – Pension and other post-retirement benefits” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and “Note 31 – Pension and other post-retirement benefits” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. The Bank contributed and recognized expenses of CHF 243 million and CHF 264 million related to its defined contribution pension plans in 6M21 and 6M20, respectively. The Bank expects to contribute CHF 16 million to the international single-employer defined benefit pension plans and CHF 11 million to other post-retirement defined benefit plans in 2021. As of the end of 6M21, CHF 10 million and CHF 5 million of contributions had been made to the international single-employer and other post-retirement defined benefit pension plans, respectively. Components of net periodic benefit costs in 6M21 6M20 Net periodic benefit costs/(credits) (CHF million) Service costs on benefit obligation 7 8 Interest costs on benefit obligation 25 37 Expected return on plan assets (34) (44) Amortization of recognized prior service cost/(credit) 1 1 Amortization of recognized actuarial losses 8 7 Settlement losses/(gains) (10) 0 Net periodic benefit costs (3) 9 Service costs on benefit obligation are reflected in compensation and benefits. Other components of net periodic benefit costs are reflected in general and administrative expenses.

Derivatives and hedging activit

Derivatives and hedging activities	6 Months Ended
	Jun. 30, 2021
Derivatives and hedging activities	28 Derivatives and hedging activities > Refer to “Note 33 – Derivatives and hedging activities” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information. Fair value of derivative instruments The tables below present gross derivative replacement values by type of contract and balance sheet location and whether the derivative is used for trading purposes or in a qualifying hedging relationship. Notional amounts have also been provided as an indication of the volume of derivative activity within the Group. Information on bifurcated embedded derivatives has not been included in these tables. Under US GAAP, the Group elected to account for substantially all financial instruments with an embedded derivative that is not considered clearly and closely related to the host contract at fair value. > Refer to “Note 31 – Financial instruments” for further information. Fair value of derivative instruments Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 4,305.9 1.4 1.3 0.0 0.0 0.0 Swaps 9,045.8 43.3 39.1 140.6 0.7 0.1 Options bought and sold (OTC) 884.8 13.0 12.8 0.0 0.0 0.0 Futures 341.3 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 140.1 0.1 0.2 0.0 0.0 0.0 Interest rate products 14,717.9 57.8 53.4 140.6 0.7 0.1 Forwards 996.1 7.8 6.6 21.0 0.2 0.0 Swaps 355.3 9.6 11.8 0.0 0.0 0.2 Options bought and sold (OTC) 240.3 2.4 2.7 0.0 0.0 0.0 Futures 17.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 0.6 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,609.8 19.8 21.1 21.0 0.2 0.2 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 121.3 1.9 4.7 0.0 0.0 0.0 Options bought and sold (OTC) 258.8 15.7 11.8 0.0 0.0 0.0 Futures 41.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 608.3 23.3 22.2 0.0 0.0 0.0 Equity/index-related products 1,031.0 40.9 39.0 0.0 0.0 0.0 Credit derivatives 2 594.3 5.1 6.3 0.0 0.0 0.0 Forwards 16.0 0.2 0.2 0.0 0.0 0.0 Swaps 11.4 1.1 0.6 0.0 0.0 0.0 Options bought and sold (OTC) 18.4 0.3 0.2 0.0 0.0 0.0 Futures 12.9 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.8 0.1 0.1 0.0 0.0 0.0 Other products 3 70.5 1.7 1.1 0.0 0.0 0.0 Total derivative instruments 18,023.5 125.3 120.9 161.6 0.9 0.3 The notional amount, PRV and NRV (trading and hedging) was CHF 18,185.1 billion, CHF 126.2 billion and CHF 121.2 billion, respectively, as of June 30, 2021. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Fair value of derivative instruments (continued) Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 5,221.5 2.7 2.8 0.0 0.0 0.0 Swaps 8,087.8 53.5 50.2 126.1 0.9 0.1 Options bought and sold (OTC) 968.6 18.2 18.0 0.0 0.0 0.0 Futures 296.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 116.1 0.5 0.6 0.0 0.0 0.0 Interest rate products 14,690.6 74.9 71.6 126.1 0.9 0.1 Forwards 928.4 10.1 11.8 13.9 0.1 0.1 Swaps 345.8 10.9 13.4 0.0 0.0 0.0 Options bought and sold (OTC) 236.3 3.4 3.7 0.0 0.0 0.0 Futures 8.8 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 1.0 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,520.3 24.4 28.9 13.9 0.1 0.1 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 167.6 4.3 8.8 0.0 0.0 0.0 Options bought and sold (OTC) 218.3 14.9 10.0 0.0 0.0 0.0 Futures 23.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 454.0 20.0 20.7 0.0 0.0 0.0 Equity/index-related products 864.4 39.2 39.8 0.0 0.0 0.0 Credit derivatives 2 467.8 4.9 6.0 0.0 0.0 0.0 Forwards 12.2 0.3 0.2 0.0 0.0 0.0 Swaps 9.8 1.1 0.5 0.0 0.0 0.0 Options bought and sold (OTC) 14.8 0.3 0.2 0.0 0.0 0.0 Futures 4.2 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.6 0.1 0.1 0.0 0.0 0.0 Other products 3 52.6 1.8 1.0 0.0 0.0 0.0 Total derivative instruments 17,595.7 145.2 147.3 140.0 1.0 0.2 The notional amount, PRV and NRV (trading and hedging) was CHF 17,735.7 billion, CHF 146.2 billion and CHF 147.5 billion, respectively, as of December 31, 2020. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Netting of derivative instruments > Refer to “Derivatives” in Note 24 – Offsetting of financial assets and financial liabilities for further information on the netting of derivative instruments. Gains or (losses) on fair value hedges in 2Q21 1Q21 2Q20 6M21 6M20 Interest rate products (CHF million) Hedged items 1 (288) 1,156 (205) 868 (2,374) Derivatives designated as hedging instruments 1 264 (1,096) 212 (832) 2,226 The accrued interest on fair value hedges is recorded in net interest income and is excluded from this table. 1 Included in net interest income. Hedged items in fair value hedges 2Q21 4Q20 Hedged items Hedged items Carrying Hedging 1 Discontinued 2 Carrying Hedging 1 Discontinued 2 Assets (CHF billion) Investment securities 0.6 0.0 0.0 0.4 0.0 0.0 Net loans 21.6 (0.1) 0.4 20.5 0.2 0.5 Liabilities (CHF billion) Long-term debt 75.5 0.8 0.7 65.8 1.9 0.8 1 Relates to the cumulative amount of fair value hedging adjustments included in the carrying amount. 2 Relates to the cumulative amount of fair value hedging adjustments remaining for any hedged items for which hedge accounting has been discontinued. Cash flow hedges in 2Q21 1Q21 2Q20 6M21 6M20 Interest rate products (CHF million) Gains/(losses) recognized in AOCI on derivatives (23) (96) 21 (119) 288 Gains/(losses) reclassified from AOCI into interest and dividend income 7 3 0 10 (42) Foreign exchange products (CHF million) Gains/(losses) recognized in AOCI on derivatives 0 4 (5) 4 (84) Trading revenues 0 0 0 0 (30) Total other operating expenses 15 10 (5) 25 (11) Gains/(losses) reclassified from AOCI into income 15 10 (5) 25 (41) Gains/(losses) excluded from the assessment of effectiveness reported in trading revenues 0 0 0 0 1 1 1 Related to the forward points of a foreign currency forward. As of the end of 2Q21, the maximum length of time over which the Group hedged its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, was 12 months. The net gain associated with cash flow hedges expected to be reclassified from AOCI within the next 12 months is CHF 50 million. Net investment hedges in 2Q21 1Q21 2Q20 6M21 6M20 Foreign exchange products (CHF million) Gains/(losses) recognized in the cumulative translation adjustments section of AOCI 7 (262) (38) (255) 481 Gains/(losses) reclassified from the cumulative translation adjustments section of AOCI into other revenues 0 0 9 0 9 The Group includes all derivative instruments not included in hedge accounting relationships in its trading activities. > Refer to “Note 7 – Trading revenues” for gains and losses on trading activities by product type. Disclosures relating to contingent credit risk Certain of the Group’s derivative instruments contain provisions that require it to maintain a specified credit rating from each of the major credit rating agencies. If the ratings fall below the level specified in the contract, the counterparties to the agreements could request payment of additional collateral on those derivative instruments that are in a net liability position. Certain of the derivative contracts also provide for termination of the contract, generally upon a downgrade of either the Group or the counterparty. Such derivative contracts are reflected at close-out costs. The following table provides the Group’s current net exposure from contingent credit risk relating to derivative contracts with bilateral counterparties and SPEs that include credit support agreements, the related collateral posted and the additional collateral required in a one-notch, two-notch and a three-notch downgrade event, respectively. The table also includes derivative contracts with contingent credit risk features without credit support agreements that have accelerated termination event conditions. The current net exposure for derivative contracts with bilateral counterparties and contracts with accelerated termination event conditions is the aggregate fair value of derivative instruments that were in a net liability position. For SPEs, the current net exposure is the contractual amount that is used to determine the collateral payable in the event of a downgrade. The contractual amount could include both the NRV and a percentage of the notional value of the derivative. Contingent credit risk 2Q21 4Q20 Special Special Contingent credit risk (CHF billion) Current net exposure 2.4 0.0 0.4 2.8 3.0 0.0 0.4 3.4 Collateral posted 2.1 0.0 – 2.1 2.4 0.0 – 2.4 Impact of a three-notch downgrade event 0.5 0.0 0.1 0.6 0.5 0.0 0.2 0.7 The impact of a downgrade event reflects the amount of additional collateral required for bilateral counterparties and special purpose entities and the amount of additional termination expenses for accelerated terminations, respectively. Credit derivatives > Refer to “Note 33 – Derivatives and hedging activities” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on credit derivatives. Credit protection sold/purchased The following tables do not include all credit derivatives and differ from the credit derivatives in the “Fair value of derivative instruments” tables. This is due to the exclusion of certain credit derivative instruments under US GAAP, which defines a credit derivative as a derivative instrument (a) in which one or more of its underlyings are related to the credit risk of a specified entity (or a group of entities) or an index based on the credit risk of a group of entities and (b) that exposes the seller to potential loss from credit risk-related events specified in the contract. Total return swaps (TRS) of CHF 14.3 billion and CHF 14.4 billion as of the end of 2Q21 and 4Q20 were also excluded because a TRS does not expose the seller to potential loss from credit risk-related events specified in the contract. A TRS only provides protection against a loss in asset value and not against additional amounts as a result of specific credit events. Credit protection sold/purchased 2Q21 4Q20 1 Net credit Fair value 1 Net credit Fair value Single-name instruments (CHF billion) Investment grade 2 (55.4) 52.3 (3.1) 11.7 0.5 (52.5) 47.8 (4.7) 13.0 0.5 Non-investment grade (32.3) 30.2 (2.1) 11.7 0.6 (28.5) 26.5 (2.0) 11.8 0.4 Total single-name instruments (87.7) 82.5 (5.2) 23.4 1.1 (81.0) 74.3 (6.7) 24.8 0.9 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (74.6) 70.5 (4.1) 18.1 1.1 (68.5) 62.7 (5.8) 19.5 0.9 Multi-name instruments (CHF billion) Investment grade 2 (141.6) 136.8 (4.8) 28.8 (0.4) (99.5) 95.2 (4.3) 23.1 (0.7) Non-investment grade (34.1) 31.9 (2.2) 13.2 3 0.3 (24.3) 19.9 (4.4) 11.3 3 0.2 Total multi-name instruments (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) of which non-sovereign (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) Total instruments (CHF billion) Investment grade 2 (197.0) 189.1 (7.9) 40.5 0.1 (152.0) 143.0 (9.0) 36.1 (0.2) Non-investment grade (66.4) 62.1 (4.3) 24.9 0.9 (52.8) 46.4 (6.4) 23.1 0.6 Total instruments (263.4) 251.2 (12.2) 65.4 1.0 (204.8) 189.4 (15.4) 59.2 0.4 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (250.3) 239.2 (11.1) 60.1 1.0 (192.3) 177.8 (14.5) 53.9 0.4 1 Represents credit protection purchased with identical underlyings and recoveries. 2 Based on internal ratings of BBB and above. 3 Includes synthetic securitized loan portfolios. Credit protection sold Credit protection sold is the maximum potential payout, which is based on the notional value of derivatives and represents the amount of future payments that the Group would be required to make as a result of credit risk-related events. Credit protection purchased Credit protection purchased represents those instruments where the underlying reference instrument is identical to the reference instrument of the credit protection sold. Other protection purchased In the normal course of business, the Group purchases protection to offset the risk of credit protection sold that may have similar, but not identical, reference instruments and may use similar, but not identical, products, which reduces the total credit derivative exposure. Other protection purchased is based on the notional value of the instruments. Fair value of credit protection sold The fair values of the credit protection sold give an indication of the amount of payment risk, as the negative fair values increase when the potential payment under the derivative contracts becomes more probable. The following table reconciles the notional amount of credit derivatives included in the table “Fair value of derivative instruments” to the table “Credit protection sold/purchased”. Credit derivatives end of 2Q21 4Q20 Credit derivatives (CHF billion) Credit protection sold 263.4 204.8 Credit protection purchased 251.2 189.4 Other protection purchased 65.4 59.2 Other instruments 1 14.3 14.4 Total credit derivatives 594.3 467.8 1 Consists of total return swaps and other derivative instruments. The segregation of the future payments by maturity range and underlying risk gives an indication of the current status of the potential for performance under the derivative contracts. Maturity of credit protection sold Maturity Maturity Maturity 2Q21 (CHF billion) Single-name instruments 13.7 69.9 4.1 87.7 Multi-name instruments 40.9 121.9 12.9 175.7 Total instruments 54.6 191.8 17.0 263.4 4Q20 (CHF billion) Single-name instruments 14.0 62.7 4.3 81.0 Multi-name instruments 29.6 82.6 11.6 123.8 Total instruments 43.6 145.3 15.9 204.8
Bank
Derivatives and hedging activities	27 Derivatives and hedging activities > Refer to “Note 32 – Derivatives and hedging activities” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Fair value of derivative instruments The tables below present gross derivative replacement values by type of contract and balance sheet location and whether the derivative is used for trading purposes or in a qualifying hedging relationship. Notional amounts have also been provided as an indication of the volume of derivative activity within the Bank. Information on bifurcated embedded derivatives has not been included in these tables. Under US GAAP, the Bank elected to account for substantially all financial instruments with an embedded derivative that is not considered clearly and closely related to the host contract at fair value. > Refer to “Note 30 – Financial instruments” for further information. Fair value of derivative instruments Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 4,305.9 1.4 1.3 0.0 0.0 0.0 Swaps 9,053.7 43.4 39.1 137.1 0.7 0.1 Options bought and sold (OTC) 884.8 13.0 12.8 0.0 0.0 0.0 Futures 341.3 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 140.1 0.1 0.2 0.0 0.0 0.0 Interest rate products 14,725.8 57.9 53.4 137.1 0.7 0.1 Forwards 996.1 7.8 6.6 21.0 0.2 0.2 Swaps 355.3 9.6 11.8 0.0 0.0 0.0 Options bought and sold (OTC) 240.3 2.4 2.7 0.0 0.0 0.0 Futures 17.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 0.6 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,609.8 19.8 21.1 21.0 0.2 0.2 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 121.3 1.9 4.7 0.0 0.0 0.0 Options bought and sold (OTC) 258.8 15.7 11.8 0.0 0.0 0.0 Futures 41.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 608.3 23.3 22.2 0.0 0.0 0.0 Equity/index-related products 1,031.0 40.9 39.0 0.0 0.0 0.0 Credit derivatives 2 594.3 5.1 6.3 0.0 0.0 0.0 Forwards 16.0 0.2 0.2 0.0 0.0 0.0 Swaps 11.4 1.1 0.6 0.0 0.0 0.0 Options bought and sold (OTC) 18.4 0.3 0.2 0.0 0.0 0.0 Futures 12.9 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.8 0.1 0.1 0.0 0.0 0.0 Other products 3 70.5 1.7 1.1 0.0 0.0 0.0 Total derivative instruments 18,031.4 125.4 120.9 158.1 0.9 0.3 The notional amount, PRV and NRV (trading and hedging) was CHF 18,189.5 billion, CHF 126.3 billion and CHF 121.2 billion, respectively, as of June 30, 2021. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Fair value of derivative instruments (continued) Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 5,221.5 2.7 2.8 0.0 0.0 0.0 Swaps 8,088.7 53.5 50.3 126.1 0.9 0.1 Options bought and sold (OTC) 968.6 18.2 18.0 0.0 0.0 0.0 Futures 296.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 116.1 0.5 0.6 0.0 0.0 0.0 Interest rate products 14,691.5 74.9 71.7 126.1 0.9 0.1 Forwards 928.4 10.1 11.8 13.9 0.1 0.1 Swaps 345.8 10.9 13.4 0.0 0.0 0.0 Options bought and sold (OTC) 236.3 3.4 3.7 0.0 0.0 0.0 Futures 8.8 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 1.0 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,520.3 24.4 28.9 13.9 0.1 0.1 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 167.6 4.3 8.8 0.0 0.0 0.0 Options bought and sold (OTC) 218.3 14.9 10.0 0.0 0.0 0.0 Futures 23.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 454.0 20.0 20.7 0.0 0.0 0.0 Equity/index-related products 864.4 39.2 39.8 0.0 0.0 0.0 Credit derivatives 2 467.8 4.9 6.0 0.0 0.0 0.0 Forwards 12.2 0.3 0.2 0.0 0.0 0.0 Swaps 9.8 1.1 0.5 0.0 0.0 0.0 Options bought and sold (OTC) 14.8 0.3 0.2 0.0 0.0 0.0 Futures 4.2 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.6 0.1 0.1 0.0 0.0 0.0 Other products 3 52.6 1.8 1.0 0.0 0.0 0.0 Total derivative instruments 17,596.6 145.2 147.4 140.0 1.0 0.2 The notional amount, PRV and NRV (trading and hedging) was CHF 17,736.6 billion, CHF 146.2 billion and CHF 147.6 billion, respectively, as of December 31, 2020. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Netting of derivative instruments > Refer to “Note 23 – Offsetting of financial assets and financial liabilities” for further information on the offsetting of derivative instruments. Gains or losses on fair value hedges in 6M21 6M20 Interest rate products (CHF million) Hedged items 1 776 (2,374) Derivatives designated as hedging instruments 1 (740) 2,226 The accrued interest on fair value hedges is recorded in net interest income and is excluded from this table. 1 Included in net interest income. Hedged items in fair value hedges 6M21 2020 Hedged items Hedged items Carrying Hedging 1 Discontinued 2 Carrying Hedging 1 Discontinued 2 Assets (CHF billion) Investment securities 0.6 0.0 0.0 0.4 0.0 0.0 Net loans 21.6 (0.1) 0.4 20.5 0.2 0.5 Liabilities (CHF billion) Long-term debt 72.1 0.9 0.7 65.8 1.9 0.8 1 Relates to the cumulative amount of fair value hedging adjustments included in the carrying amount. 2 Relates to the cumulative amount of fair value hedging adjustments remaining for any hedged items for which hedge accounting has been discontinued. Cash flow hedges in 6M21 6M20 Interest rate products (CHF million) Gains/(losses) recognized in AOCI on derivatives (119) 288 Gains/(losses) reclassified from AOCI into interest and dividend income 10 (42) Foreign exchange products (CHF million) Gains/(losses) recognized in AOCI on derivatives 4 (84) Trading revenues 0 (30) Total other operating expenses 25 (11) Gains/(losses) reclassified from AOCI into income 25 (41) Gains/(losses) excluded from the assessment of effectiveness reported in trading revenues 1 0 1 1 Related to the forward points of a foreign currency forward. As of the end of 6M21, the maximum length of time over which the Bank hedged its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, was 12 months. The net gain associated with cash flow hedges expected to be reclassified from accumulated other comprehensive income (AOCI) within the next 12 months was CHF 50 million. Net investment hedges in 6M21 6M20 Foreign exchange products (CHF million) Gains/(losses) recognized in the cumulative translation adjustments section of AOCI (248) 476 Gains/(losses) reclassified from the cumulative translation adjustments section of AOCI into other revenues 0 9 The Bank includes all derivative instruments not included in hedge accounting relationships in its trading activities. > Refer to “Note 7 – Trading revenues” for gains and losses on trading activities by product type. Disclosures relating to contingent credit risk The following table provides the Bank’s current net exposure from contingent credit risk relating to derivative contracts with bilateral counterparties and special purpose entities (SPEs) that include credit support agreements, the related collateral posted and the additional collateral required in a one-notch, two-notch and a three-notch downgrade event, respectively. The table also includes derivative contracts with contingent credit risk features without credit support agreements that have accelerated termination event conditions. The current net exposure for derivative contracts with bilateral counterparties and contracts with accelerated termination event conditions is the aggregate fair value of derivative instruments that were in a net liability position. For SPEs, the current net exposure is the contractual amount that is used to determine the collateral payable in the event of a downgrade. The contractual amount could include both the NRV and a percentage of the notional value of the derivative. Contingent credit risk 6M21 2020 Special Special Contingent credit risk (CHF billion) Current net exposure 2.4 0.0 0.4 2.8 3.0 0.0 0.4 3.4 Collateral posted 2.1 0.0 – 2.1 2.4 0.0 – 2.4 Impact of a three-notch downgrade event 0.5 0.0 0.1 0.6 0.5 0.0 0.2 0.7 The impact of a downgrade event reflects the amount of additional collateral required for bilateral counterparties and special purpose entities and the amount of additional termination expenses for accelerated terminations, respectively. Credit derivatives > Refer to “Note 32 – Derivatives and hedging activities” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information on credit derivatives. Credit protection sold/purchased The following tables do not include all credit derivatives and differ from the credit derivatives in the “Fair value of derivative instruments” tables. This is due to the exclusion of certain credit derivative instruments under US GAAP, which defines a credit derivative as a derivative instrument (a) in which one or more of its underlyings are related to the credit risk of a specified entity (or a group of entities) or an index based on the credit risk of a group of entities and (b) that exposes the seller to potential loss from credit risk-related events specified in the contract. Total return swaps (TRS) of CHF 14.3 billion and CHF 14.4 billion as of the end of 6M21 and 2020, respectively, were also excluded because a TRS does not expose the seller to potential loss from credit risk-related events specified in the contract. A TRS only provides protection against a loss in asset value and not against additional amounts as a result of specific credit events. Credit protection sold/purchased 6M21 2020 1 Net credit Fair value 1 Net credit Fair value Single-name instruments (CHF billion) Investment grade 2 (55.4) 52.3 (3.1) 11.7 0.5 (52.5) 47.8 (4.7) 13.0 0.5 Non-investment grade (32.3) 30.2 (2.1) 11.7 0.6 (28.5) 26.5 (2.0) 11.8 0.4 Total single-name instruments (87.7) 82.5 (5.2) 23.4 1.1 (81.0) 74.3 (6.7) 24.8 0.9 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (74.6) 70.5 (4.1) 18.1 1.1 (68.5) 62.7 (5.8) 19.5 0.9 Multi-name instruments (CHF billion) Investment grade 2 (141.6) 136.8 (4.8) 28.8 (0.4) (99.5) 95.2 (4.3) 23.1 (0.7) Non-investment grade (34.1) 31.9 (2.2) 13.2 3 0.3 (24.3) 19.9 (4.4) 11.3 3 0.2 Total multi-name instruments (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) of which non-sovereign (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) Total instruments (CHF billion) Investment grade 2 (197.0) 189.1 (7.9) 40.5 0.1 (152.0) 143.0 (9.0) 36.1 (0.2) Non-investment grade (66.4) 62.1 (4.3) 24.9 0.9 (52.8) 46.4 (6.4) 23.1 0.6 Total instruments (263.4) 251.2 (12.2) 65.4 1.0 (204.8) 189.4 (15.4) 59.2 0.4 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (250.3) 239.2 (11.1) 60.1 1.0 (192.3) 177.8 (14.5) 53.9 0.4 1 Represents credit protection purchased with identical underlyings and recoveries. 2 Based on internal ratings of BBB and above. 3 Includes synthetic securitized loan portfolios. The following table reconciles the notional amount of credit derivatives included in the table “Fair value of derivative instruments” to the table “Credit protection sold/purchased”. Credit derivatives end of 6M21 2020 Credit derivatives (CHF billion) Credit protection sold 263.4 204.8 Credit protection purchased 251.2 189.4 Other protection purchased 65.4 59.2 Other instruments 1 14.3 14.4 Total credit derivatives 594.3 467.8 1 Consists of total return swaps and other derivative instruments. Maturity of credit protection sold Maturity Maturity Maturity 6M21 (CHF billion) Single-name instruments 13.7 69.9 4.1 87.7 Multi-name instruments 40.9 121.9 12.9 175.7 Total instruments 54.6 191.8 17.0 263.4 2020 (CHF billion) Single-name instruments 14.0 62.7 4.3 81.0 Multi-name instruments 29.6 82.6 11.6 123.8 Total instruments 43.6 145.3 15.9 204.8

Guarantees and commitments

Guarantees and commitments	6 Months Ended
	Jun. 30, 2021
Guarantees and commitments	29 Guarantees and commitments Guarantees In the ordinary course of business, guarantees are provided that contingently obligate the Group to make payments to third parties if the counterparty fails to fulfill its obligation under a borrowing or other contractual arrangement. The total gross amount disclosed within the Guarantees table reflects the maximum potential payment under the guarantees. The carrying value represents the higher of the initial fair value (generally the related fee received or receivable) less cumulative amortization and the Group’s current best estimate of payments that will be required under existing guarantee arrangements. Guarantees provided by the Group are classified as follows: credit guarantees and similar instruments, performance guarantees and similar instruments, derivatives and other guarantees. > Refer to “Guarantees” in VI – Consolidated financial statements – Credit Suisse Group – Note 34 – Guarantees and commitments in the Credit Suisse Annual Report 2020 for a detailed description of guarantees. Guarantees Maturity Maturity Total Total 1 2Q21 (CHF million) Credit guarantees and similar instruments 2,411 1,921 4,332 4,268 20 2,195 Performance guarantees and similar instruments 4,484 2,868 7,352 6,223 38 2,706 Derivatives 2 11,082 4,968 16,050 16,050 403 – 3 Other guarantees 4,102 2,131 6,233 6,189 61 3,705 Total guarantees 22,079 11,888 33,967 32,730 522 8,606 4Q20 (CHF million) Credit guarantees and similar instruments 1,645 1,434 3,079 3,016 27 1,637 Performance guarantees and similar instruments 3,607 2,925 6,532 5,601 30 2,535 Derivatives 2 10,531 6,042 16,573 16,573 380 – 3 Other guarantees 3,555 2,588 6,143 6,130 85 3,725 Total guarantees 19,338 12,989 32,327 31,320 522 7,897 1 Total net amount is computed as the gross amount less any participations. 2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Group had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments. 3 Collateral for derivatives accounted for as guarantees is not significant. Deposit-taking banks and securities dealers in Switzerland and certain other European countries are required to ensure the payout of privileged deposits in case of specified restrictions or compulsory liquidation of a deposit-taking bank. In Switzerland, deposit-taking banks and securities dealers jointly guarantee an amount of up to CHF 6 billion. Upon occurrence of a payout event triggered by a specified restriction of business imposed by FINMA or by the compulsory liquidation of another deposit-taking bank, the Group’s contribution will be calculated based on its share of privileged deposits in proportion to total privileged deposits. Based on FINMA’s estimate for the Group’s banking subsidiaries in Switzerland, the Group’s share in the deposit insurance guarantee program for the period July 1, 2020 to June 30, 2021 was CHF 0.5 billion. These deposit insurance guarantees were reflected in other guarantees. Representations and warranties on residential mortgage loans sold In connection with the Investment Bank division’s sale of US residential mortgage loans, the Group has provided certain representations and warranties relating to the loans sold. The Group has provided these representations and warranties relating to sales of loans to institutional investors, primarily banks, and non-agency, or private label, securitizations. The loans sold are primarily loans that the Group has purchased from other parties. The scope of representations and warranties, if any, depends on the transaction, but can include: ownership of the mortgage loans and legal capacity to sell the loans; loan-to-value (LTV) ratios and other characteristics of the property, the borrower and the loan; validity of the liens securing the loans and absence of delinquent taxes or related liens; conformity to underwriting standards and completeness of documentation; and origination in compliance with law. If it is determined that representations and warranties were breached, the Group may be required to repurchase the related loans or indemnify the investors to make them whole for losses. Whether the Group will incur a loss in connection with repurchases and make whole payments depends on: the extent to which claims are made; the validity of such claims made within the statute of limitations (including the likelihood and ability to enforce claims); whether the Group can successfully claim against parties that sold loans to the Group and made representations and warranties to the Group; the residential real estate market, including the number of defaults; and whether the obligations of the securitization vehicles were guaranteed or insured by third parties. Repurchase claims on residential mortgage loans sold that are subject to arbitration or litigation proceedings, or become so during the reporting period, are not included in this Guarantees and commitments disclosure but are addressed in litigation and related loss contingencies and provisions. The Group is involved in litigation relating to representations and warranties on residential mortgages sold. > Refer to “Note 33 – Litigation” for further information. Disposal-related contingencies and other indemnifications The Group has certain guarantees for which its maximum contingent liability cannot be quantified. These guarantees include disposal-related contingencies in connection with the sale of assets or businesses, and other indemnifications. These guarantees are not reflected in the “Guarantees” table. > Refer to “Disposal-related contingencies and other indemnifications” in VI – Consolidated financial statements – Credit Suisse Group – Note 34 – Guarantees and commitments in the Credit Suisse Annual Report 2020 for a description of these guarantees. Other commitments Other commitments of the Group are classified as follows: irrevocable commitments under documentary credits, irrevocable loan commitments, forward reverse repurchase agreements and other commitments. > Refer to “Other commitments” in VI – Consolidated financial statements – Credit Suisse Group – Note 34 – Guarantees and commitments in the Credit Suisse Annual Report 2020 for a description of these commitments. Other commitments 2Q21 4Q20 Maturity Maturity Total Total 1 Maturity Maturity Total Total 1 Other commitments (CHF million) Irrevocable commitments under documentary credits 4,446 82 4,528 4,279 2,469 3,915 97 4,012 3,963 2,404 Irrevocable loan commitments 2 24,764 105,111 129,875 125,484 60,786 19,813 99,209 119,022 115,116 53,039 Forward reverse repurchase agreements 71 0 71 71 71 17 0 17 17 17 Other commitments 1,815 322 2,137 2,137 16 135 1,808 1,943 1,943 19 Total other commitments 31,096 105,515 136,611 131,971 63,342 23,880 101,114 124,994 121,039 55,479 1 Total net amount is computed as the gross amount less any participations. 2 Irrevocable loan commitments do not include a total gross amount of CHF 144,958 million and CHF 130,877 million of unused credit limits as of the end of 2Q21 and 4Q20 respectively, which were revocable at the Group's sole discretion upon notice to the client.
Bank
Guarantees and commitments	28 Guarantees and commitments > Refer to “Note 29 – Guarantees and commitments” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and to “Note 33 – Guarantees and commitments” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Guarantees Maturity Maturity 1 6M21 (CHF million) Credit guarantees and similar instruments 2,411 1,925 4,336 4,272 20 2,195 Performance guarantees and similar instruments 4,484 2,868 7,352 6,223 38 2,706 Derivatives 2 11,082 4,968 16,050 16,050 403 – 3 Other guarantees 4,102 2,131 6,233 6,189 61 3,705 Total guarantees 22,079 11,892 33,971 32,734 522 8,606 2020 (CHF million) Credit guarantees and similar instruments 1,645 1,438 3,083 3,020 27 1,637 Performance guarantees and similar instruments 3,607 2,925 6,532 5,601 30 2,535 Derivatives 2 10,531 6,042 16,573 16,573 380 – 3 Other guarantees 3,555 2,588 6,143 6,130 85 3,725 Total guarantees 19,338 12,993 32,331 31,324 522 7,897 1 Total net amount is computed as the gross amount less any participations. 2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Bank had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments. 3 Collateral for derivatives accounted for as guarantees is not considered significant. Deposit-taking banks and securities dealers in Switzerland and certain other European countries are required to ensure the payout of privileged deposits in case of specified restrictions or compulsory liquidation of a deposit-taking bank. In Switzerland, deposit-taking banks and securities dealers jointly guarantee an amount of up to CHF 6 billion. Upon occurrence of a payout event triggered by a specified restriction of business imposed by the Swiss Financial Market Supervisory Authority FINMA (FINMA) or by the compulsory liquidation of another deposit taking bank, the Bank’s contribution will be calculated based on its share of privileged deposits in proportion to total privileged deposits. Based on FINMA’s estimate for the Bank’s banking subsidiaries in Switzerland, the Bank’s share in the deposit insurance guarantee program for the period July 1, 2020 to June 30, 2021 was CHF 0.5 billion. These deposit insurance guarantees were reflected in other guarantees. Representations and warranties on residential mortgage loans sold In connection with the Global Markets division’s sale of US residential mortgage loans, the Bank has provided certain representations and warranties relating to the loans sold. > Refer to “Note 29 – Guarantees and commitments” in III – Consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and to “Note 33 – Guarantees and commitments” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Other commitments 6M21 2020 Maturity Maturity 1 Maturity Maturity 1 Other commitments (CHF million) Irrevocable commitments under documentary credits 4,446 82 4,528 4,279 2,469 3,915 97 4,012 3,963 2,404 Irrevocable loan commitments 24,764 105,111 129,875 2 125,484 60,786 19,813 99,209 119,022 2 115,116 53,039 Forward reverse repurchase agreements 71 0 71 71 71 17 0 17 17 17 Other commitments 1,815 322 2,137 2,137 16 135 1,808 1,943 1,943 19 Total other commitments 31,096 105,515 136,611 131,971 63,342 23,880 101,114 124,994 121,039 55,479 1 Total net amount is computed as the gross amount less any participations. 2 Irrevocable loan commitments do not include a total gross amount of CHF 145,045 million and CHF 130,965 million of unused credit limits as of the end of 6M21 and 2020, respectively, which were revocable at the Bank's sole discretion upon notice to the client. The prior period has been adjusted to the current presentation.

Transfers of financial assets a

Transfers of financial assets and variable interest entities	6 Months Ended
	Jun. 30, 2021
Transfers of financial assets and variable interest entities	30 Transfers of financial assets and variable interest entities In the normal course of business, the Group enters into transactions with, and makes use of, SPEs. An SPE is an entity in the form of a trust or other legal structure designed to fulfill a specific limited need of the company that organized it and is generally structured to isolate the SPE’s assets from creditors of other entities, including the Group. The principal uses of SPEs are to assist the Group and its clients in securitizing financial assets and creating investment products. The Group also uses SPEs for other client-driven activity, such as to facilitate financings, and for Group tax or regulatory purposes. Transfers of financial assets Securitizations The majority of the Group’s securitization activities involve mortgages and mortgage-related securities and are predominantly transacted using SPEs. In a typical securitization, the SPE purchases assets financed by proceeds received from the SPE’s issuance of debt and equity instruments, certificates, CP and other notes of indebtedness. These assets and liabilities are recorded on the balance sheet of the SPE and not reflected on the Group’s consolidated balance sheet, unless either the Group sold the assets to the entity and the accounting requirements for sale were not met or the Group consolidates the SPE. The Group purchases commercial and residential mortgages for the purpose of securitization and sells these mortgage loans to SPEs. These SPEs issue commercial mortgage-backed securities (CMBS), residential mortgage-backed securities (RMBS) and asset-backed securities (ABS) that are collateralized by the assets transferred to the SPE and that pay a return based on the returns on those assets. Investors in these mortgage-backed securities or ABS typically have recourse to the assets in the SPEs. Third-party guarantees may further enhance the creditworthiness of the assets. The investors and the SPEs have no recourse to the Group’s assets. The Group is typically an underwriter of, and makes a market in, these securities. The Group also transacts in re-securitizations of previously issued RMBS. Typically, certificates issued out of an existing securitization vehicle are sold into a newly created and separate securitization vehicle. Often, these re-securitizations are initiated in order to re-securitize an existing security to give the investor an investment with different risk ratings or characteristics. The Group also uses SPEs for other asset-backed financings relating to client-driven activity and for Group tax or regulatory purposes. Types of structures included in this category include managed CLOs, CLOs, leveraged finance, repack and other types of transactions, including life insurance structures, emerging market structures set up for financing, loan participation or loan origination purposes, and other alternative structures created for the purpose of investing in venture capital-like investments. CLOs are collateralized by loans transferred to the CLO vehicle and pay a return based on the returns on the loans. Leveraged finance structures are used to assist in the syndication of certain loans held by the Group, while repack structures are designed to give a client collateralized exposure to specific cash flows or credit risk backed by collateral purchased from the Group. In these asset-backed financing structures, investors typically only have recourse to the collateral of the SPE and do not have recourse to the Group’s assets. When the Group transfers assets into an SPE, it must assess whether that transfer is accounted for as a sale of the assets. Transfers of assets may not meet sale requirements if the assets have not been legally isolated from the Group and/or if the Group’s continuing involvement is deemed to give it effective control over the assets. If the transfer is not deemed a sale, it is instead accounted for as a secured borrowing, with the transferred assets as collateral. Gains and losses on securitization transactions depend, in part, on the carrying values of mortgages and loans involved in the transfer and are allocated between the assets sold and any beneficial interests retained according to the relative fair values at the date of sale. The Group does not retain material servicing responsibilities from securitization activities. The following table provides the gains or losses and proceeds from the transfer of assets relating to 6M21 and 6M20 securitizations of financial assets that qualify for sale accounting and subsequent derecognition, along with the cash flows between the Group and the SPEs used in any securitizations in which the Group still has continuing involvement, regardless of when the securitization occurred. Securitizations in 6M21 6M20 Gains/(losses) and cash flows (CHF million) CMBS Net gain 1 0 30 Proceeds from transfer of assets 999 4,862 Cash received on interests that continue to be held 26 21 RMBS Net gain 1 62 22 Proceeds from transfer of assets 20,876 11,373 Purchases of previously transferred financial assets or its underlying collateral (1,072) 0 Servicing fees 1 1 Cash received on interests that continue to be held 430 457 Other asset-backed financings Net gain 1 47 61 Proceeds from transfer of assets 6,802 4,766 Purchases of previously transferred financial assets or its underlying collateral (699) (638) Fees 2 81 72 Cash received on interests that continue to be held 7 11 1 Includes underwriting revenues, deferred origination fees, gains or losses on the sale of collateral to the SPE and gains or losses on the sale of newly issued securities to third parties, but excludes net interest income on assets prior to the securitization. The gains or losses on the sale of the collateral is the difference between the fair value on the day prior to the securitization pricing date and the sale price of the loans. 2 Represents management fees and performance fees earned for investment management services provided to managed CLOs. Continuing involvement in transferred financial assets The Group may have continuing involvement in the financial assets that are transferred to an SPE, which may take several forms, including, but not limited to, servicing, recourse and guarantee arrangements, agreements to purchase or redeem transferred assets, derivative instruments, pledges of collateral and beneficial interests in the transferred assets. > Refer to “Transfers of financial assets” in VI – Consolidated financial statements – Credit Suisse Group – Note 35 – Transfers of financial assets and variable interest entities in the Credit Suisse Annual Report 2020 for a detailed description of continuing involvement in transferred financial assets. The following table provides the outstanding principal balance of assets to which the Group continued to be exposed after the transfer of the financial assets to any SPE and the total assets of the SPE as of the end of 2Q21 and 4Q20, regardless of when the transfer of assets occurred. Principal amounts outstanding and total assets of SPEs resulting from continuing involvement end of 2Q21 4Q20 CHF million CMBS Principal amount outstanding 16,247 17,421 Total assets of SPE 23,079 24,455 RMBS Principal amount outstanding 58,318 47,324 Total assets of SPE 58,318 47,863 Other asset-backed financings Principal amount outstanding 26,307 24,968 Total assets of SPE 55,188 50,817 Principal amount outstanding relates to assets transferred from the Group and does not include principal amounts for assets transferred from third parties. Fair value of beneficial interests The fair value measurement of the beneficial interests held at the time of transfer and as of the reporting date that result from any continuing involvement is determined using fair value estimation techniques, such as the present value of estimated future cash flows that incorporate assumptions that market participants customarily use in these valuation techniques. The fair value of the assets or liabilities that result from any continuing involvement does not include any benefits from financial instruments that the Group may utilize to hedge the inherent risks. Key economic assumptions at the time of transfer > Refer to “Note 31 – Financial instruments” for further information on the fair value hierarchy. Key economic assumptions used in measuring fair value of beneficial interests at time of transfer 6M21 6M20 at time of transfer, in CMBS RMBS CMBS RMBS CHF million, except where indicated Fair value of beneficial interests 92 1,337 172 1,646 of which level 2 82 1,019 158 1,465 of which level 3 10 318 14 181 Weighted-average life, in years 7.4 5.0 8.1 3.6 Prepayment speed assumption (rate per annum), in % 1 – 2 3.0 – 32.8 – 2 1.0 – 38.2 Cash flow discount rate (rate per annum), in % 3 1.8 – 4.5 1.0 – 15.4 1.4 – 9.2 0.7 – 24.7 Expected credit losses (rate per annum), in % 4 0.9 – 3.9 0.1 – 13.7 4.0 – 8.6 3.3 – 22.9 Transfers of assets in which the Group does not have beneficial interests are not included in this table. 1 Prepayment speed assumption (PSA) is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the constant prepayment rate (CPR) assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 2 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 3 The rate is based on the weighted-average yield on the beneficial interests. 4 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero. Key economic assumptions as of the reporting date The following table provides the sensitivity analysis of key economic assumptions used in measuring the fair value of beneficial interests held in SPEs as of the end of 2Q21 and 4Q20. Key economic assumptions used in measuring fair value of beneficial interests held in SPEs 2Q21 4Q20 1 Other asset- 2 1 Other asset- 2 CHF million, except where indicated Fair value of beneficial interests 232 2,382 319 296 1,851 350 of which non-investment grade 38 330 18 36 631 23 Weighted-average life, in years 6.0 4.0 5.5 5.6 4.0 4.8 Prepayment speed assumption (rate per annum), in % 3 – 5.2 – 30.0 – – 4.0 – 50.1 – Impact on fair value from 10% adverse change – (40.0) – – (43.7) – Impact on fair value from 20% adverse change – (78.0) – – (92.1) – Cash flow discount rate (rate per annum), in % 4 1.7 – 31.5 0.7 – 29.7 0.3 – 28.0 0.6 – 38.2 0.3 – 39.7 0.7 – 27.7 Impact on fair value from 10% adverse change (2.9) (32.5) (3.7) (4.9) (22.4) (4.2) Impact on fair value from 20% adverse change (5.6) (62.7) (7.3) (9.6) (43.5) (8.2) Expected credit losses (rate per annum), in % 5 0.9 – 13.0 0.2 – 28.6 0.3 – 28.0 0.4 – 14.7 0.6 – 39.6 0.7 – 26.8 Impact on fair value from 10% adverse change (1.8) (25.9) (3.5) (4.3) (20.2) (4.5) Impact on fair value from 20% adverse change (3.5) (50.2) (6.8) (8.5) (39.2) (8.9) 1 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 2 CDOs and CLOs within this category are generally structured to be protected from prepayment risk. 3 PSA is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the CPR assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 4 The rate is based on the weighted-average yield on the beneficial interests. 5 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero. These sensitivities are hypothetical and do not reflect economic hedging activities. Changes in fair value based on a 10% or 20% variation in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. Also, the effect of a variation in a particular assumption on the fair value of the beneficial interests is calculated without changing any other assumption. In practice, changes in one assumption may result in changes in other assumptions (for example, increases in market interest rates may result in lower prepayments and increased credit losses), which might magnify or counteract the sensitivities. Transfers of financial assets where sale treatment was not achieved The following table provides the carrying amounts of transferred financial assets and the related liabilities where sale treatment was not achieved as of the end of 2Q21 and 4Q20. > Refer to “Note 32 – Assets pledged and collateral” for further information. Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved end of 2Q21 4Q20 CHF million Other asset-backed financings Trading assets 721 496 Other assets 198 246 Liability to SPE, included in other liabilities (919) (742) Securities sold under repurchase agreements and securities lending transactions accounted for as secured borrowings For securities sold under repurchase agreements and securities lending transactions accounted for as secured borrowings, US GAAP requires the disclosure of the collateral pledged and the associated risks to which a transferor continues to be exposed after the transfer. This provides an understanding of the nature and risks of short-term collateralized financing obtained through these types of transactions. Securities sold under repurchase agreements and securities lending transactions represent collateralized financing transactions used to earn net interest income, increase liquidity or facilitate trading activities. These transactions are collateralized principally by government debt securities, corporate debt securities, asset-backed securities, equity securities and other collateral and have terms ranging from on demand to a longer period of time. In the event of the Group’s default or a decline in fair value of collateral pledged, the repurchase agreement provides the counterparty with the right to liquidate the collateral held or request additional collateral. Similarly, in the event of the Group’s default, the securities lending transaction provides the counterparty the right to liquidate the securities borrowed. The following tables provide the gross obligation relating to securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral by the class of collateral pledged and by remaining contractual maturity as of the end of 2Q21 and 4Q20. Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by class of collateral pledged end of 2Q21 4Q20 CHF billion Government debt securities 15.8 12.1 Corporate debt securities 8.6 7.7 Asset-backed securities 4.3 6.0 Other 3.0 1.9 Securities sold under repurchase agreements 31.7 27.7 Government debt securities 0.2 0.4 Corporate debt securities 0.3 0.1 Equity securities 3.3 3.5 Other 0.0 0.1 Securities lending transactions 3.8 4.1 Government debt securities 4.7 5.8 Corporate debt securities 4.4 5.6 Equity securities 29.4 39.3 Other 0.2 0.1 Obligation to return securities received as collateral, at fair value 38.7 50.8 Total 74.2 82.6 Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by remaining contractual maturity Remaining contractual maturities No stated 1 Up to 2 31–90 More than 2Q21 (CHF billion) Securities sold under repurchase agreements 3.4 16.4 2.6 9.3 31.7 Securities lending transactions 3.8 0.0 0.0 0.0 3.8 Obligation to return securities received as collateral, at fair value 38.6 0.0 0.0 0.1 38.7 Total 45.8 16.4 2.6 9.4 74.2 4Q20 (CHF billion) Securities sold under repurchase agreements 5.8 11.8 5.9 4.2 27.7 Securities lending transactions 4.0 0.0 0.1 0.0 4.1 Obligation to return securities received as collateral, at fair value 50.2 0.3 0.3 0.0 50.8 Total 60.0 12.1 6.3 4.2 82.6 1 Includes contracts with no contractual maturity that may contain termination arrangements subject to a notice period. 2 Includes overnight transactions. > Refer to “Note 24 – Offsetting of financial assets and financial liabilities” for further information on the gross amount of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral and the net amounts disclosed in the consolidated balance sheets. Variable interest entities As a normal part of its business, the Group engages in various transactions that include entities that are considered variable interest entities (VIEs) and are grouped into three primary categories: collateralized debt obligations (CDOs)/CLOs, CP conduits and financial intermediation. > Refer to “Variable interest entities” in VI – Consolidated financial statements – Credit Suisse Group – Note 35 – Transfers of financial assets and variable interest entities in the Credit Suisse Annual Report 2020 for a detailed description of VIEs, CDO/CLOs, CP conduit or financial intermediation. Collateralized debt and loan obligations The Group engages in CDO/CLO transactions to meet client and investor needs, earn fees and sell financial assets and, in the case of CLOs, loans. The Group may act as underwriter, placement agent or asset manager and may warehouse assets prior to the closing of a transaction. Commercial paper conduit The Group acts as the administrator and provider of liquidity and credit enhancement facilities for Alpine Securitization Ltd (Alpine), a multi-seller asset-backed CP conduit used for client and Group financing purposes. Alpine discloses to CP investors certain portfolio and asset data and submits its portfolio to rating agencies for public ratings on its CP. This CP conduit purchases assets such as loans and receivables or enters into reverse repurchase agreements and finances such activities through the issuance of CP backed by these assets. In addition to CP, Alpine may also issue term notes with maturities up to 30 months. The Group (including Alpine) can enter into liquidity facilities with third-party entities pursuant to which it may be required to purchase assets from these entities to provide them with liquidity and credit support. The financing transactions are structured to provide credit support in the form of over-collateralization and other asset-specific enhancements. Alpine is a separate legal entity that is wholly owned by the Group. However, its assets are available to satisfy only the claims of its creditors. In addition, the Group, as administrator and liquidity facility provider, has significant exposure to and power over the activities of Alpine. Alpine is considered a VIE for accounting purposes and the Group is deemed the primary beneficiary and consolidates this entity. The overall average maturity of Alpine’s outstanding CP was approximately 215 days as of the end of 2Q21. Alpine’s CP was rated A-1(sf) by Standard & Poor’s and P-1(sf) by Moody’s and had exposures mainly in reverse repurchase agreements with a Group entity, consumer loans, solar loans and leases, aircraft loans and leases and car loans and leases. The Group’s financial commitment to this CP conduit consists of obligations under liquidity agreements. The liquidity agreements are asset-specific arrangements, which require the Group to provide short-term financing to the CP conduit or to purchase assets from the CP conduit in certain circumstances, including, but not limited to, a lack of liquidity in the CP market such that the CP conduit cannot refinance its obligations or a default of an underlying asset. The asset-specific credit enhancements provided by the client seller of the assets remain unchanged as a result of such a purchase. In entering into such agreements, the Group reviews the credit risk associated with these transactions on the same basis that would apply to other extensions of credit. The Group enters into liquidity facilities with CP conduits administrated and sponsored by third parties. These third-party CP conduits are considered to be VIEs for accounting purposes. The Group is not the primary beneficiary and does not consolidate these third-party CP conduits. The Group’s financial commitment to these third-party CP conduits consists of obligations under liquidity agreements. The liquidity agreements are asset-specific arrangements, which require the Group to provide short-term financing to the third-party CP conduits or to purchase assets from these CP conduits in certain circumstances, including, but not limited to, a lack of liquidity in the CP market such that the CP conduits cannot refinance their obligations or a default of an underlying asset. The asset-specific credit enhancements, if any, provided by the client seller of the assets remain unchanged as a result of such a purchase. In entering into such agreements, the Group reviews the credit risk associated with these transactions on the same basis that would apply to other extensions of credit. In some situations, the Group can enter into liquidity facilities with these third-party CP conduits through Alpine. The Group’s economic risks associated with the Alpine CP conduit and the third-party CP conduits are included in the Group’s risk management framework including counterparty, economic risk capital and scenario analysis. Financial intermediation The Group has significant involvement with VIEs in its role as a financial intermediary on behalf of clients. Financial intermediation consists of securitizations, funds, loans and other vehicles. Consolidated VIEs The Group has significant involvement with VIEs in its role as a financial intermediary on behalf of clients. The Group consolidates all VIEs related to financial intermediation for which it is the primary beneficiary. The consolidated VIEs table provides the carrying amounts and classifications of the assets and liabilities of consolidated VIEs as of the end of 2Q21 and 4Q20. Consolidated VIEs in which the Group was the primary beneficiary Financial intermediation CP Securi- 2Q21 (CHF million) Cash and due from banks 0 39 16 21 171 247 Trading assets 0 1,068 54 788 6 1,916 Other investments 0 0 109 877 245 1,231 Net loans 603 0 61 22 0 686 Other assets 24 540 31 82 811 1,488 of which loans held-for-sale 0 57 26 0 0 83 of which premises and equipment 0 0 0 29 0 29 Total assets of consolidated VIEs 627 1,647 271 1,790 1,233 5,568 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 9 0 9 Short-term borrowings 4,700 29 0 0 1,755 1 6,484 Long-term debt 93 1,180 0 3 43 1,319 Other liabilities 70 1 4 70 92 237 Total liabilities of consolidated VIEs 4,863 1,210 4 82 1,891 8,050 4Q20 (CHF million) Cash and due from banks 0 23 22 37 8 90 Trading assets 0 1,255 50 840 19 2,164 Other investments 0 0 129 920 202 1,251 Net loans 653 0 51 29 167 900 Other assets 21 979 15 82 779 1,876 of which loans held-for-sale 0 462 10 0 0 472 of which premises and equipment 0 0 0 30 4 34 Total assets of consolidated VIEs 674 2,257 267 1,908 1,175 6,281 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 10 0 10 Short-term borrowings 4,178 0 0 0 0 4,178 Long-term debt 0 1,701 0 10 35 1,746 Other liabilities 53 1 3 73 78 208 Total liabilities of consolidated VIEs 4,231 1,702 3 93 114 6,143 1 Reflects the Group’s MCNs outstanding as of the end of 2Q21; these MCNs were issued by Credit Suisse Group (Guernsey) VII Limited, a consolidated VIE of the Group. Non-consolidated VIEs The non-consolidated VIEs table provides the carrying amounts and classification of the assets of variable interests recorded in the Group’s consolidated balance sheets, maximum exposure to loss and total assets of the non-consolidated VIEs. Certain VIEs have not been included in the following table, including VIEs structured by third parties in which the Group’s interest is in the form of securities held in the Group’s inventory, certain repurchase financings to funds and single-asset financing vehicles not sponsored by the Group to which the Group provides financing but has very little risk of loss due to over-collateralization and/or guarantees, failed sales where the Group does not have any other holdings and other entities out of scope. > Refer to “Variable interest entities” in VI – Consolidated financial statements – Credit Suisse Group – Note 35 – Transfers of financial assets and variable interest entities in the Credit Suisse Annual Report 2020 for further information on non-consolidated VIEs. Non-consolidated VIEs Financial intermediation CDO/ CP 1 Securi- 2Q21 (CHF million) Trading assets 257 0 4,480 921 24 7,930 13,612 Net loans 631 547 365 2,770 8,778 1,375 14,466 Other assets 7 0 302 177 0 546 1,032 Total variable interest assets 895 547 5,147 3,868 8,802 9,851 29,110 Maximum exposure to loss 1,532 5,966 7,887 3,868 13,568 10,593 43,414 Total assets of non-consolidated VIEs 11,001 12,544 106,170 163,757 37,131 31,092 361,695 4Q20 (CHF million) Trading assets 250 0 4,500 1,113 66 8,617 14,546 Net loans 357 371 734 1,967 6,989 939 11,357 Other assets 2 0 3 119 0 344 468 Total variable interest assets 609 371 5,237 3,199 7,055 9,900 26,371 Maximum exposure to loss 852 5,538 7,329 3,199 11,235 10,226 38,379 Total assets of non-consolidated VIEs 8,553 11,148 127,785 89,686 26,186 33,140 296,498 1 Includes liquidity facilities provided to third-party CP conduits through Alpine Securities Ltd.
Bank
Transfers of financial assets and variable interest entities	29 Transfers of financial assets and variable interest entities > Refer to “Note 30 – Transfers of financial assets and variable interest entities“ in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and “Note 34 – Transfers of financial assets and variable interest entities“ in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Transfers of financial assets Securitizations The following table provides the gains or losses and proceeds from the transfer of assets relating to 6M21 and 6M20 securitizations of financial assets that qualify for sale accounting and subsequent derecognition, along with cash flows between the Bank and the SPEs used in any securitizations in which the Bank still has continuing involvement, regardless of when the securitization occurred. Securitizations in 6M21 6M20 Gains/(losses) and cash flows (CHF million) CMBS Net gain 1 0 30 Proceeds from transfer of assets 999 4,862 Cash received on interests that continue to be held 26 21 RMBS Net gain 1 62 22 Proceeds from transfer of assets 20,876 11,373 Purchases of previously transferred financial assets or its underlying collateral (1,072) 0 Servicing fees 1 1 Cash received on interests that continue to be held 430 457 Other asset-backed financings Net gain 1 47 61 Proceeds from transfer of assets 6,802 4,766 Purchases of previously transferred financial assets or its underlying collateral (699) (638) Fees 2 81 72 Cash received on interests that continue to be held 7 11 1 Includes underwriting revenues, deferred origination fees, gains or losses on the sale of collateral to the SPE and gains or losses on the sale of newly issued securities to third parties, but excludes net interest income on assets prior to the securitization. The gains or losses on the sale of the collateral is the difference between the fair value on the day prior to the securitization pricing date and the sale price of the loans. 2 Represents management fees and performance fees earned for investment management services provided to managed CLOs. Continuing involvement in transferred financial assets The following table provides the outstanding principal balance of assets to which the Bank continued to be exposed after the transfer of the financial assets to any SPE and the total assets of the SPE as of the end of 6M21 and 2020, regardless of when the transfer of assets occurred. Principal amounts outstanding and total assets of SPEs resulting from continuing involvement end of 6M21 2020 CHF million CMBS Principal amount outstanding 16,247 17,421 Total assets of SPE 23,079 24,455 RMBS Principal amount outstanding 58,318 47,324 Total assets of SPE 58,318 47,863 Other asset-backed financings Principal amount outstanding 26,307 24,968 Total assets of SPE 55,188 50,817 Principal amount outstanding relates to assets transferred from the Bank and does not include principal amounts for assets transferred from third parties. Fair value of beneficial interests The fair value measurement of the beneficial interests held at the time of transfer and as of the reporting date that result from any continuing involvement is determined using fair value estimation techniques, such as the present value of estimated future cash flows that incorporate assumptions that market participants customarily use in these valuation techniques. The fair value of the assets or liabilities that result from any continuing involvement does not include any benefits from financial instruments that the Bank may utilize to hedge the inherent risks. Key economic assumptions at the time of transfer > Refer to “Note 30 – Financial instruments” for information on fair value hierarchy levels. Key economic assumptions used in measuring fair value of beneficial interests at time of transfer 6M21 6M20 at time of transfer, in CMBS RMBS CMBS RMBS CHF million, except where indicated Fair value of beneficial interests 92 1,337 172 1,646 of which level 2 82 1,019 158 1,465 of which level 3 10 318 14 181 Weighted-average life, in years 7.4 5.0 8.1 3.6 Prepayment speed assumption (rate per annum), in % 1 – 2 3.0 – 32.8 – 2 1.0 – 38.2 Cash flow discount rate (rate per annum), in % 3 1.8 – 4.5 1.0 – 15.4 1.4 – 9.2 0.7 – 24.7 Expected credit losses (rate per annum), in % 4 0.9 – 3.9 0.1 – 13.7 4.0 – 8.6 3.3 – 22.9 Transfers of assets in which the Bank does not have beneficial interests are not included in this table. 1 Prepayment speed assumption (PSA) is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the constant prepayment rate (CPR) assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 2 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 3 The rate was based on the weighted-average yield on the beneficial interests. 4 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero. Key economic assumptions as of the reporting date The following table provides the sensitivity analysis of key economic assumptions used in measuring the fair value of beneficial interests held in SPEs as of the end of 6M21 and 2020. Key economic assumptions used in measuring fair value of beneficial interests held in SPEs 6M21 2020 1 Other asset- 2 1 Other asset- 2 CHF million, except where indicated Fair value of beneficial interests 232 2,382 319 296 1,851 350 of which non-investment grade 38 330 18 36 631 23 Weighted-average life, in years 6.0 4.0 5.5 5.6 4.0 4.8 Prepayment speed assumption (rate per annum), in % 3 – 5.2 – 30.0 – – 4.0 – 50.1 – Impact on fair value from 10% adverse change – (40.0) – – (43.7) – Impact on fair value from 20% adverse change – (78.0) – – (92.1) – Cash flow discount rate (rate per annum), in % 4 1.7 – 31.5 0.7 – 29.7 0.3 – 28.0 0.6 – 38.2 0.3 – 39.7 0.7 – 27.7 Impact on fair value from 10% adverse change (2.9) (32.5) (3.7) (4.9) (22.4) (4.2) Impact on fair value from 20% adverse change (5.6) (62.7) (7.3) (9.6) (43.5) (8.2) Expected credit losses (rate per annum), in % 5 0.9 – 13.0 0.2 – 28.6 0.3 – 28.0 0.4 – 14.7 0.6 – 39.6 0.7 – 26.8 Impact on fair value from 10% adverse change (1.8) (25.9) (3.5) (4.3) (20.2) (4.5) Impact on fair value from 20% adverse change (3.5) (50.2) (6.8) (8.5) (39.2) (8.9) 1 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 2 CDOs within this category are generally structured to be protected from prepayment risk. 3 PSA is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the CPR assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 4 The rate was based on the weighted-average yield on the beneficial interests. 5 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero. Transfers of financial assets where sale treatment was not achieved The following table provides the carrying amounts of transferred financial assets and the related liabilities where sale treatment was not achieved as of the end of 6M21 and 2020. > Refer to “Note 31 – Assets pledged and collateral” for information on assets pledged or assigned. Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved end of 6M21 2020 CHF million Other asset-backed financings Trading assets 721 496 Other assets 198 246 Liability to SPE, included in other liabilities (919) (742) Securities sold under repurchase agreements and securities lending transactions accounted for as secured borrowings The following tables provide the gross obligation relating to securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral by the class of collateral pledged and by remaining contractual maturity as of the end of 6M21 and 2020. Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by class of collateral pledged end of 6M21 2020 CHF billion Government debt securities 15.9 12.2 Corporate debt securities 8.6 7.7 Asset-backed securities 4.3 6.0 Other 3.0 1.8 Securities sold under repurchase agreements 31.8 27.7 Government debt securities 0.2 0.4 Corporate debt securities 0.3 0.1 Equity securities 3.3 3.5 Other 0.0 0.1 Securities lending transactions 3.8 4.1 Government debt securities 4.7 5.8 Corporate debt securities 4.4 5.6 Equity securities 29.4 39.3 Other 0.2 0.1 Obligation to return securities received as collateral, at fair value 38.7 50.8 Total 74.3 82.6 Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by remaining contractual maturity Remaining contractual maturities No stated 1 Up to 2 31-90 More than 6M21 (CHF billion) Securities sold under repurchase agreements 3.4 16.5 2.6 9.3 31.8 Securities lending transactions 3.8 0.0 0.0 0.0 3.8 Obligation to return securities received as collateral, at fair value 38.6 0.0 0.0 0.1 38.7 Total 45.8 16.5 2.6 9.4 74.3 2020 (CHF billion) Securities sold under repurchase agreements 5.8 11.8 5.9 4.2 27.7 Securities lending transactions 4.0 0.0 0.1 0.0 4.1 Obligation to return securities received as collateral, at fair value 50.2 0.3 0.3 0.0 50.8 Total 60.0 12.1 6.3 4.2 82.6 1 Includes contracts with no contractual maturity that may contain termination arrangements subject to a notice period. 2 Includes overnight transactions. > Refer to “Note 23 – Offsetting of financial assets and financial liabilities” for further information on the gross amount of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral and the net amounts disclosed in the consolidated balance sheets. Variable interest entities Commercial paper conduit The Bank acts as the administrator and provider of liquidity and credit enhancement facilities for Alpine Securitization Ltd (Alpine), a multi-seller asset-backed CP conduit used for client and Bank financing purposes. Alpine discloses to CP investors certain portfolio and asset data and submits its portfolio to rating agencies for public ratings on its CP. This CP conduit purchases assets such as loans and receivables or enters into reverse repurchase agreements and finances such activities through the issuance of CP backed by these assets. In addition to CP, Alpine may also issue term notes with maturities up to 30 months. The Bank (including Alpine) can enter into liquidity facilities with third-party entities pursuant to which it may be required to purchase assets from these entities to provide them with liquidity and credit support. The financing transactions are structured to provide credit support in the form of over-collateralization and other asset-specific enhancements. Alpine is a separate legal entity that is wholly owned by the Bank. However, its assets are available to satisfy only the claims of its creditors. In addition, the Bank, as administrator and liquidity facility provider, has significant exposure to and power over the activities of Alpine. Alpine is considered a VIE for accounting purposes and the Bank is deemed the primary beneficiary and consolidates this entity. The overall average maturity of Alpine’s outstanding CP was approximately 215 days as of the end of 6M21. Alpine’s CP was rated A-1(sf) by Standard & Poor’s and P-1(sf) by Moody’s. Alpine had exposures mainly in reverse repurchase agreements with a Group entity, consumer loans, solar loans and leases, aircraft loans and leases and car loans and leases. The Bank’s financial commitment to this CP conduit consists of obligations under liquidity agreements. The liquidity agreements are asset-specific arrangements, which require the Bank to provide short-term financing to the CP conduit or to purchase assets from the CP conduit in certain circumstances, including but not limited to, a lack of liquidity in the CP market such that the CP conduit cannot refinance its obligations or a default of an underlying asset. The asset-specific credit enhancements provided by the client seller of the assets remain unchanged as a result of such a purchase. In entering into such agreements, the Bank reviews the credit risk associated with these transactions on the same basis that would apply to other extensions of credit. The Bank enters into liquidity facilities with CP conduits administrated and sponsored by third parties. These third-party CP conduits are considered to be VIEs for accounting purposes. The Bank is not the primary beneficiary and does not consolidate these third-party CP conduits. The Bank’s financial commitment to these third-party CP conduits consists of obligations under liquidity agreements. The liquidity agreements are asset-specific arrangements, which require the Bank to provide short-term financing to the third-party CP conduits or to purchase assets from these CP conduits in certain circumstances, including but not limited to, a lack of liquidity in the CP market such that the CP conduits cannot refinance their obligations or a default of an underlying asset. The asset-specific credit enhancements, if any, provided by the client seller of the assets remain unchanged as a result of such a purchase. In entering into such agreements, the Bank reviews the credit risk associated with these transactions on the same basis that would apply to other extensions of credit. In some situations, the Bank can enter into liquidity facilities with these third-party CP conduits through Alpine. The Bank’s economic risks associated with the Alpine CP conduit and the third-party CP conduits are included in the Bank’s risk management framework including counterparty, economic risk capital and scenario analysis. Consolidated VIEs The consolidated variable interest entities (VIEs) tables provide the carrying amounts and classifications of the assets and liabilities of consolidated VIEs as of the end of 6M21 and 2020. Consolidated VIEs in which the Bank was the primary beneficiary Financial intermediation CP Securi- 6M21 (CHF million) Cash and due from banks 0 39 16 21 171 247 Trading assets 0 1,068 54 788 6 1,916 Other investments 0 0 109 877 245 1,231 Net loans 603 0 61 22 0 686 Other assets 24 540 31 67 792 1,454 of which loans held-for-sale 0 57 26 0 0 83 of which premises and equipment 0 0 0 14 0 14 Total assets of consolidated VIEs 627 1,647 271 1,775 1,214 5,534 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 9 0 9 Short-term borrowings 4,700 29 0 0 0 4,729 Long-term debt 93 1,180 0 3 43 1,319 Other liabilities 70 1 4 72 84 231 Total liabilities of consolidated VIEs 4,863 1,210 4 84 128 6,289 2020 (CHF million) Cash and due from banks 0 23 22 37 8 90 Trading assets 0 1,255 50 840 19 2,164 Other investments 0 0 129 920 202 1,251 Net loans 653 0 51 29 167 900 Other assets 21 979 15 65 778 1,858 of which loans held-for-sale 0 462 10 0 0 472 of which premises and equipment 0 0 0 13 4 17 Total assets of consolidated VIEs 674 2,257 267 1,891 1,174 6,263 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 10 0 10 Short-term borrowings 4,178 0 0 0 0 4,178 Long-term debt 0 1,701 0 10 35 1,746 Other liabilities 53 1 3 72 78 207 Total liabilities of consolidated VIEs 4,231 1,702 3 92 114 6,142 Non-consolidated VIEs The non-consolidated VIEs table provides the carrying amounts and classification of the assets of variable interests recorded in the Bank’s consolidated balance sheets, maximum exposure to loss and total assets of the non-consolidated VIEs. Non-consolidated VIEs Financial intermediation CDO/ CP 1 Securi- 6M21 (CHF million) Trading assets 257 0 4,480 920 24 7,930 13,611 Net loans 631 547 365 2,770 8,778 1,375 14,466 Other assets 7 0 302 174 0 546 1,029 Total variable interest assets 895 547 5,147 3,864 8,802 9,851 29,106 Maximum exposure to loss 1,532 5,966 7,887 3,864 13,568 10,593 43,410 Total assets of non-consolidated VIEs 11,001 12,544 106,170 162,600 37,131 25,776 355,222 2020 (CHF million) Trading assets 250 0 4,500 1,113 66 8,617 14,546 Net loans 357 371 734 1,967 6,989 939 11,357 Other assets 2 0 3 110 0 344 459 Total variable interest assets 609 371 5,237 3,190 7,055 9,900 26,362 Maximum exposure to loss 852 5,538 7,329 3,190 11,235 10,226 38,370 Total assets of non-consolidated VIEs 8,553 11,148 127,785 87,618 26,186 25,759 287,049 1 Includes liquidity facilities provided to third-party CP conduits through Alpine Securities Ltd.

Financial instruments

Financial instruments	6 Months Ended
	Jun. 30, 2021
Financial instruments	31 Financial instruments The disclosure of the Group’s financial instruments below includes the following sections: ■ ■ ■ ■ Concentrations of credit risk Credit risk concentrations arise when a number of counterparties are engaged in similar business activities, are located in the same geographic region or when there are similar economic features that would cause their ability to meet contractual obligations to be similarly impacted by changes in economic conditions. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the Group’s concentrations of credit risk. Fair value measurement A significant portion of the Group’s financial instruments is carried at fair value. Deterioration of financial markets could significantly impact the fair value of these financial instruments and the results of operations. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on fair value measurement of financial instruments and the definition of the levels of the fair value hierarchy. Qualitative disclosures of valuation techniques Information on the valuation techniques and significant unobservable inputs of the various financial instruments and the section “Uncertainty of fair value measurements at the reporting date from the use of significant unobservable inputs” should be read in conjunction with the tables “Assets and liabilities measured at fair value on a recurring basis”, “Quantitative information about level 3 assets measured at fair value on a recurring basis” and “Quantitative information about level 3 liabilities measured at fair value on a recurring basis”. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the Group’s valuation techniques. Assets and liabilities measured at fair value on a recurring basis 1 Assets 2 Assets (CHF million) Cash and due from banks 0 141 0 – – 141 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 69,465 0 – – 69,465 Securities received as collateral 33,337 5,265 84 – – 38,686 Trading assets 63,367 161,743 5,938 (101,348) 805 130,505 of which debt securities 11,267 44,628 1,655 – 70 57,620 of which foreign governments 10,885 11,376 40 – – 22,301 of which corporates 265 9,854 889 – 70 11,078 of which RMBS 0 20,528 477 – – 21,005 of which equity securities 41,037 2,172 282 – 735 44,226 of which derivatives 9,422 113,199 2,883 (101,348) – 24,156 of which interest rate products 1,212 55,831 805 – – – of which foreign exchange products 220 19,512 139 – – – of which equity/index-related products 7,941 32,473 490 – – – of which other derivatives 0 147 1,073 – – – of which other trading assets 1,641 1,744 1,118 – – 4,503 Investment securities 35 759 0 – – 794 Other investments 13 7 2,231 – 496 2,747 of which other equity investments 13 7 1,353 – 374 1,747 of which life finance instruments 0 0 877 – – 877 Loans 0 8,173 2,928 – – 11,101 of which commercial and industrial loans 0 1,712 1,411 – – 3,123 of which financial institutions 0 3,958 643 – – 4,601 Other intangible assets (mortgage servicing rights) 0 0 189 – – 189 Other assets 155 9,191 1,436 (440) – 10,342 of which failed purchases 126 1,590 12 – – 1,728 of which loans held-for-sale 0 6,433 1,287 – – 7,720 Total assets at fair value 96,907 254,744 12,806 (101,788) 1,301 263,970 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 330 0 – – 330 Customer deposits 0 3,489 432 – – 3,921 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 10,983 0 – – 10,983 Obligation to return securities received as collateral 33,337 5,265 84 – – 38,686 Trading liabilities 24,903 113,684 3,035 (108,650) – 32,972 of which debt securities 3,230 4,823 0 – – 8,053 of which foreign governments 3,131 1,002 0 – – 4,133 of which equity securities 12,134 141 41 – – 12,316 of which derivatives 9,539 108,720 2,994 (108,650) – 12,603 of which interest rate products 1,184 52,087 142 – – – of which foreign exchange products 176 20,973 62 – – – of which equity/index-related products 8,127 29,144 1,738 – – – Short-term borrowings 0 7,448 1,106 – – 8,554 Long-term debt 0 59,763 9,673 – – 69,436 of which structured notes over one year and up to two years 0 11,742 2,124 – – 13,866 of which structured notes over two years 0 24,088 6,777 – – 30,865 of which high-trigger instruments 0 11,080 0 – – 11,080 Other liabilities 90 7,557 535 (271) – 7,911 Total liabilities at fair value 58,330 208,519 14,865 (108,921) – 172,793 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Assets 2 Assets (CHF million) Cash and due from banks 0 525 0 – – 525 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 57,994 0 – – 57,994 Securities received as collateral 44,074 6,598 101 – – 50,773 Trading assets 87,710 181,166 7,535 (119,731) 658 157,338 of which debt securities 16,321 45,766 2,253 – 55 64,395 of which foreign governments 15,908 11,909 140 – – 27,957 of which corporates 353 9,799 1,270 – 55 11,477 of which RMBS 0 20,882 557 – – 21,439 of which equity securities 60,044 2,466 124 – 603 63,237 of which derivatives 9,297 132,054 3,911 (119,731) – 25,531 of which interest rate products 3,036 71,043 733 – – – of which foreign exchange products 42 24,259 143 – – – of which equity/index-related products 6,150 31,945 1,186 – – – of which other derivatives 22 110 1,079 – – – of which other trading assets 2,048 880 1,247 – – 4,175 Investment securities 2 605 0 – – 607 Other investments 13 6 3,054 – 721 3,794 of which other equity investments 13 6 2,132 – 608 2,759 of which life finance instruments 0 0 920 – – 920 Loans 0 7,739 3,669 – – 11,408 of which commercial and industrial loans 0 2,187 1,347 – – 3,534 of which financial institutions 0 3,506 1,082 – – 4,588 Other intangible assets (mortgage servicing rights) 0 0 180 – – 180 Other assets 137 7,315 1,825 (904) – 8,373 of which failed purchases 109 1,229 51 – – 1,389 of which loans held-for-sale 0 4,870 1,576 – – 6,446 Total assets at fair value 131,936 261,948 16,364 (120,635) 1,379 290,992 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 413 0 – – 413 Customer deposits 0 3,895 448 – – 4,343 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 13,594 0 – – 13,594 Obligation to return securities received as collateral 44,074 6,598 101 – – 50,773 Trading liabilities 33,544 137,947 4,246 (129,867) 1 45,871 of which equity securities 20,527 111 55 – 1 20,694 of which derivatives 10,536 132,885 4,191 (129,867) – 17,745 of which interest rate products 3,264 68,159 169 – – – of which foreign exchange products 51 28,819 72 – – – of which equity/index-related products 7,149 30,612 2,010 – – – of which credit derivatives 0 4,663 1,335 – – – Short-term borrowings 0 10,039 701 – – 10,740 Long-term debt 0 63,708 7,268 – – 70,976 of which structured notes over one year and up to two years 0 11,787 1,133 – – 12,920 of which structured notes over two years 0 28,330 5,526 – – 33,856 of which high-trigger instruments 0 10,586 0 – – 10,586 Other liabilities 0 6,678 1,271 (169) – 7,780 Total liabilities at fair value 77,618 242,872 14,035 (130,036) 1 204,490 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis for level 3 Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading assets 7,535 594 (1,635) 2,472 (2,976) 508 (1,119) 39 140 0 0 0 0 380 5,938 128 of which debt securities 2,253 296 (736) 1,859 (2,285) 0 0 (7) 138 0 0 0 0 137 1,655 103 of which corporates 1,270 137 (176) 1,403 (1,913) 0 0 (5) 95 0 0 0 0 78 889 99 of which derivatives 3,911 179 (856) 0 0 508 (1,033) 29 (30) 0 0 0 0 175 2,883 72 of which interest rate products 733 59 (81) 0 0 114 (59) 0 18 0 0 0 0 21 805 54 of which other derivatives 1,079 0 0 0 0 153 (157) 0 (55) 0 0 0 0 53 1,073 (60) of which other trading assets 1,247 22 (32) 493 (617) 0 (86) 10 21 0 0 0 0 60 1,118 (47) Other investments 3,054 3 (753) 20 (473) 0 0 0 (17) 0 318 0 0 79 2,231 43 of which other equity investments 2,132 0 (753) 3 (375) 0 0 0 (6) 0 318 0 0 34 1,353 52 of which life finance instruments 920 0 0 17 (94) 0 0 0 (11) 0 0 0 0 45 877 18 Loans 3,669 22 (533) 357 (73) 162 (946) 8 85 0 1 0 0 176 2,928 25 of which commercial and industrial loans 1,347 22 (12) 10 (31) 119 (184) 14 57 0 1 0 0 68 1,411 36 of which financial institutions 1,082 0 (222) 0 (42) 32 (296) 3 40 0 0 0 0 46 643 4 Other intangible assets (mortgage servicing rights) 180 0 0 22 0 0 0 0 0 0 (22) 0 0 9 189 (22) Other assets 1,825 164 (451) 2,500 (2,176) 77 (573) 13 (42) 0 0 0 0 99 1,436 (76) of which loans held-for-sale 1,576 164 (409) 2,469 (2,137) 77 (571) 11 19 0 0 0 0 88 1,287 (41) Total assets at fair value 16,364 783 (3,372) 5,435 (5,784) 747 (2,638) 60 166 0 297 0 0 748 12,806 98 Liabilities (CHF million) Customer deposits 448 0 0 0 0 0 0 0 (8) 0 0 0 (13) 5 432 10 Obligation to return securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading liabilities 4,246 584 (1,961) 80 (24) 710 (1,138) 152 169 0 0 0 0 217 3,035 779 of which derivatives 4,191 566 (1,961) 69 (4) 710 (1,138) 152 193 0 0 0 0 216 2,994 781 of which equity/index-related derivatives 2,010 427 (1,049) 0 0 350 (527) 151 265 0 0 0 0 111 1,738 529 Short-term borrowings 701 155 (207) 0 0 930 (608) (1) 95 0 0 0 0 41 1,106 67 Long-term debt 7,268 2,715 (2,046) 0 0 4,401 (3,119) 62 (4) 0 4 (3) (30) 425 9,673 210 of which structured notes over one year and up to two years 1,133 1,165 (732) 0 0 1,127 (771) 39 97 0 0 0 (1) 67 2,124 39 of which structured notes over two years 5,526 1,532 (1,287) 0 0 3,020 (2,227) 24 (109) 0 0 (2) (29) 329 6,777 (59) Other liabilities 1,271 7 (552) 24 (46) 59 (424) 8 (8) 107 38 0 0 51 535 2 Total liabilities at fair value 14,035 3,461 (4,766) 168 (156) 6,100 (5,289) 221 244 107 42 (3) (43) 744 14,865 1,068 Net assets/(liabilities) at fair value 2,329 (2,678) 1,394 5,267 (5,628) (5,353) 2,651 (161) (78) (107) 255 3 43 4 (2,059) (970) 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M21, changes in net unrealized gains/(losses) of CHF (1,011) Assets and liabilities measured at fair value on a recurring basis for level 3 (continued) Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading assets 7,885 2,489 (1,502) 4,272 (4,657) 1,290 (1,625) 169 796 (1) 0 0 0 (319) 8,797 1,076 of which debt securities 1,923 1,654 (708) 2,527 (2,000) 0 0 59 (122) 0 0 0 0 (135) 3,198 (19) of which corporates 1,128 559 (564) 1,718 (1,230) 0 0 67 42 0 0 0 0 (78) 1,642 96 of which RMBS 317 902 (70) 557 (525) 0 0 (4) (70) 0 0 0 0 (5) 1,102 (55) of which derivatives 3,534 719 (629) 0 0 1,290 (1,606) 111 834 (1) 0 0 0 (151) 4,101 999 of which equity/index-related products 1,040 220 (240) 0 0 345 (597) 35 345 0 0 0 0 (81) 1,067 361 of which credit derivatives 879 379 (305) 0 0 700 (771) 100 211 0 0 0 0 (21) 1,172 325 of which other derivatives 909 0 0 0 0 155 (165) 0 207 0 0 0 0 (21) 1,085 210 of which other trading assets 2,231 100 (144) 1,707 (2,639) 0 (19) (1) 151 0 0 0 0 (30) 1,356 11 Other investments 2,523 2 0 371 (107) 0 0 0 95 0 (19) 0 0 (26) 2,839 38 of which other equity investments 1,463 1 0 354 (19) 0 0 0 (11) 0 (18) 0 0 (5) 1,765 (35) of which life finance instruments 1,052 0 0 17 (88) 0 0 0 106 0 0 0 0 (21) 1,066 74 Loans 2 3,835 641 (375) 90 (479) 742 (569) 38 (336) 0 0 0 0 (74) 3,513 (296) of which commercial and industrial loans 2 1,401 390 (137) 45 (282) 447 (173) 3 (194) 0 0 0 0 (27) 1,473 (205) of which financial institutions 1,201 44 (94) 0 (32) 275 (211) 13 (70) 0 0 0 0 (26) 1,100 (77) Other intangible assets (mortgage servicing rights) 244 0 0 0 0 0 0 0 0 0 (31) 0 0 (4) 209 (31) Other assets 1,846 1,432 (383) 2,400 (2,260) 282 (543) 16 (60) 0 0 0 0 (149) 2,581 (6) of which loans held-for-sale 1,619 1,409 (339) 2,373 (2,259) 282 (543) (8) (87) 0 0 0 0 (143) 2,304 (87) Total assets at fair value 16,334 4,564 (2,260) 7,306 (7,504) 2,314 (2,737) 223 495 (1) (50) 0 0 (575) 18,109 781 Liabilities (CHF million) Customer deposits 474 0 0 0 0 0 (27) 0 35 0 0 0 (22) (27) 433 9 Obligation to return securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading liabilities 3,854 513 (904) 210 (195) 1,602 (1,276) 184 (151) (5) 0 0 0 (105) 3,727 577 of which derivatives 3,801 497 (904) 0 (3) 1,602 (1,276) 184 (136) (5) 0 0 0 (103) 3,657 575 of which equity/index-related derivatives 1,921 126 (493) 0 0 585 (486) 69 (262) 0 0 0 0 (59) 1,401 274 of which credit derivatives 1,211 333 (373) 0 0 896 (574) 117 (21) 0 0 0 0 (31) 1,558 135 Short-term borrowings 997 52 (200) 0 0 470 (706) (2) (118) 0 0 0 0 (13) 480 (40) Long-term debt 12,610 1,843 (5,514) 0 0 4,294 (3,614) 461 (1,241) 0 0 87 (166) (269) 8,491 (110) of which structured notes over one year and up to two years 891 186 (423) 0 0 632 (435) 28 (111) 0 0 1 5 (18) 756 (30) of which structured notes over two years 11,458 707 (5,077) 0 0 3,631 (3,140) 433 (1,138) 0 0 87 (170) (245) 6,546 (89) Other liabilities 1,385 168 (112) 195 (227) 64 (289) (27) (15) 0 86 0 0 (27) 1,201 43 Total liabilities at fair value 19,321 2,576 (6,730) 578 (423) 6,430 (5,912) 616 (1,490) (5) 86 87 (188) (444) 14,502 479 Net assets/(liabilities) at fair value (2,987) 1,988 4,470 6,728 (7,081) (4,116) 3,175 (393) 1,985 4 (136) (87) 188 (131) 3,607 302 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M20, changes in net unrealized gains/(losses) of CHF 289 million and CHF (36) 2 Includes an adjustment of CHF 118 million reflecting the impact of applying the fair value option on certain loans (previously held at amortized cost) at the adoption of the ASU 2019-05. Both observable and unobservable inputs may be used to determine the fair value of positions that have been classified within level 3. As a result, the unrealized gains and losses for assets and liabilities within level 3 presented in the table above may include changes in fair value that were attributable to both observable and unobservable inputs. The Group employs various economic hedging techniques in order to manage risks, including risks in level 3 positions. Such techniques may include the purchase or sale of financial instruments that are classified in levels 1 and/or 2. The realized and unrealized gains and losses for assets and liabilities in level 3 presented in the table above do not reflect the related realized or unrealized gains and losses arising on economic hedging instruments classified in levels 1 and/or 2. The Group typically uses nonfinancial assets measured at fair value on a recurring or nonrecurring basis in a manner that reflects their highest and best use. Transfers in and out of level 3 Transfers into level 3 assets during 6M21 were CHF 783 million, primarily from trading assets. These transfers were primarily in the credit and securitized products businesses, due to limited observability of pricing data and reduced pricing information from external providers. Transfers out of level 3 assets during 6M21 were CHF 3,372 million, primarily in trading assets, other investments and loans. These transfers were mainly related to global trading solutions and securitized products businesses, due to improved observability of pricing data and increased availability of pricing information from external providers, and the Group’s equity investment in Allfunds Group, following its IPO. Transfers into level 3 assets during 2Q21 were CHF 385 million, primarily from trading assets. These transfers were primarily in the credit and securitized products businesses, due to limited observability of pricing data and reduced pricing information from external providers. Transfers out of level 3 assets during 2Q21 were CHF 1,611 million, primarily in other investments and trading assets. These transfers were mainly related to the securitized products business, due to improved observability of pricing data and increased availability of pricing information from external providers, and the Group’s equity investment in Allfunds Group, following its IPO. Uncertainty of fair value measurements at the reporting date from the use of significant unobservable inputs For level 3 assets with significant unobservable inputs of buyback probability, contingent probability, correlation, dividend yield, funding spread, mean reversion, mortality rate, price, recovery rate, volatility or unadjusted NAV, in general, an increase in the significant unobservable input would increase the fair value. For level 3 assets with significant unobservable inputs of credit spread, default rate, discount rate, fund gap risk, gap risk, market implied life expectancy (for life settlement and premium finance instruments), prepayment rate or tax swap rate, in general, an increase in the significant unobservable input would decrease the fair value. For level 3 liabilities, in general, an increase in the related significant unobservable inputs would have an inverse impact on fair value. An increase in the significant unobservable inputs contingent probability, credit spread, fund gap risk, gap risk, market implied life expectancy, mortality rate or price would increase the fair value. An increase in the significant unobservable inputs of buyback probability, correlation, discount rate, dividend yield, funding spread, mean reversion, prepayment rate, unadjusted NAV or volatility would decrease the fair value. Interrelationships between significant unobservable inputs Except as noted above, there are no material interrelationships between the significant unobservable inputs for the financial instruments. As the significant unobservable inputs move independently, generally an increase or decrease in one significant unobservable input will have no impact on the other significant unobservable inputs. Quantitative disclosures of valuation techniques The following tables provide the representative range of minimum and maximum values and the associated weighted averages of each significant unobservable input for level 3 assets and liabilities by the related valuation technique most significant to the related financial instrument. Quantitative information about level 3 assets measured at fair value on a recurring basis Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading assets 5,938 of which debt securities 1,655 of which corporates 889 of which 172 Discounted cash flow Credit spread, in bp 40 973 1,928 Price, in % 0 100 28 Recovery rate, in % 1 1 0 of which 12 Market comparable Price, in % 0 100 63 of which 641 Option model Buyback probability, in % 50 100 73 Correlation, in % (85) 100 68 Credit spread, in bp (4) 105 81 Fund gap risk, in % 2 0 3 1 Volatility, in % 0 137 18 of which 5 Vendor price Price, in actuals 0 153 135 of which 55 Price Price, in % 32 116 86 of which derivatives 2,883 of which interest rate products 805 of which 7 Discounted cash flow Prepayment rate, in % 3 10 6 Volatility, in % 93 97 95 of which 756 Option model Correlation, in % 1 100 8 Mean reversion, in % 2 (55) (8) 0 Prepayment rate, in % 3 28 10 Volatility, in % (3) 1 0 of which other derivatives 1,073 Discounted cash flow Market implied life expectancy, in years 2 15 6 Mortality rate, in % 72 137 98 of which other trading assets 1,118 of which 728 Discounted cash flow Market implied life expectancy, in years 3 14 7 Tax swap rate, in % 30 30 30 of which 256 Market comparable Price, in % 0 125 28 of which 133 Option model Mortality rate, in % 0 70 6 Other investments 2,231 of which other equity investments 1,353 of which 974 Adjusted NAV Price, in actuals 310 310 310 of which 326 Price Price, in % 100 100 100 Price, in actuals 1 1,244 425 of which life finance instruments 877 Discounted cash flow Market implied life expectancy, in years 2 16 6 Loans 2,928 of which commercial and industrial loans 1,411 of which 724 Discounted cash flow Credit spread, in bp 146 2,014 589 of which 597 Price Credit spread, in bp 300 300 300 Price, in % 7 100 77 of which financial institutions 643 of which 529 Discounted cash flow Credit spread, in bp 164 1,615 622 of which 113 Price Price, in % 10 61 28 Other assets 1,436 of which loans held-for-sale 1,287 of which 354 Discounted cash flow Credit spread, in bp 279 932 325 of which 885 Market comparable Price, in % 0 152 81 of which 17 Price Price, in % 0 63 53 1 Weighted average is calculated based on the fair value of the instruments. 2 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 assets measured at fair value on a recurring basis (continued) Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading assets 7,535 of which debt securities 2,253 of which corporates 1,270 of which 386 Discounted cash flow Credit spread, in bp (9) 1,509 1,007 of which 321 Market comparable Price, in % 0 227 95 of which 416 Option model Correlation, in % (50) 100 55 Gap risk, in % 2 0 2 0 Recovery rate, in % 40 40 40 Volatility, in % 0 158 23 of which 71 Vendor price Price, in actuals 0 2,292 1,654 Unadjusted NAV, in actuals 1 1 1 of which derivatives 3,911 of which equity/index-related products 1,186 Option model Buyback probability, in % 50 100 66 Correlation, in % (50) 100 58 Gap risk, in % 2 0 4 0 Volatility, in % (2) 158 24 of which other derivatives 1,079 Discounted cash flow Market implied life expectancy, in years 2 14 6 Mortality rate, in % 72 137 98 of which other trading assets 1,247 of which 766 Discounted cash flow Market implied life expectancy, in years 3 14 7 Other investments 3,054 of which other equity investments 2,132 of which 840 Discounted cash flow Discount rate, in % 9 9 9 Terminal growth rate, in % 3 3 3 of which 118 Market comparable Price, in % 100 100 100 of which 974 Adjusted NAV Price, in actuals 310 310 310 of which 110 Vendor price Price, in actuals 1 1,249 713 of which life finance instruments 920 Discounted cash flow Market implied life expectancy, in years 2 15 6 Loans 3,669 of which commercial and industrial loans 1,347 of which 908 Discounted cash flow Credit spread, in bp 237 1,480 554 Recovery rate, in % 25 25 25 of which 338 Market comparable Price, in % 0 100 70 72 Option model Pre-IPO intrinsic option, in actuals 100 100 100 of which financial institutions 1,082 of which 674 Discounted cash flow Credit spread, in bp 192 1,698 612 Recovery rate, in % 25 40 25 of which 190 Market comparable Price, in % 0 100 54 Other assets 1,825 of which loans held-for-sale 1,576 of which 296 Discounted cash flow Credit spread, in bp 246 506 343 Recovery rate, in % 1 40 34 of which 1,277 Market comparable Price, in % 0 111 71 1 Weighted average is calculated based on the fair value of the instruments. 2 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 liabilities measured at fair value on a recurring basis Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading liabilities 3,035 of which derivatives 2,994 of which equity/index-related derivatives 1,738 of which 3 Market comparable Price, in actuals 0 34 30 of which 1,688 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 67 Dividend yield, in % 1 8 4 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % (3) 137 18 of which 46 Price Price, in actuals 0 1,636 1 Short-term borrowings 1,106 of which 44 Discounted cash flow Credit spread, in bp 104 1,036 788 of which 968 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 68 Fund gap risk, in % 3 0 3 1 Gap risk, in % 3 0 4 1 Volatility, in % 0 137 16 of which 12 Price Price, in % 59 59 59 Long-term debt 9,673 of which structured notes over one year and up to two years 2,124 of which 12 Discounted cash flow Credit spread, in bp 40 40 40 of which 2,110 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 69 Credit spread, in bp (4) 105 81 Fund gap risk, in % 3 0 3 1 Gap risk, in % 3 0 4 1 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % 0 137 18 of which structured notes over two years 6,777 of which 110 Discounted cash flow Credit spread, in bp 2 309 84 of which 6,521 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 68 Credit spread, in bp (4) 105 81 Fund gap risk, in % 3 0 3 1 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % 0 137 14 of which 12 Price Price, in % 4 26 21 1 Weighted average is calculated based on the fair value of the instruments. 2 Estimate of probability of structured notes being put back to the Group at the option of the investor over the remaining life of the financial instruments. 3 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 liabilities measured at fair value on a recurring basis (continued) Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading liabilities 4,246 of which derivatives 4,191 of which equity/index-related derivatives 2,010 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 58 Volatility, in % (2) 158 27 of which credit derivatives 1,335 of which 738 Discounted cash flow Correlation, in % 37 45 44 Credit spread, in bp 0 1,468 391 Default rate, in % 0 7 3 Discount rate, in % 6 19 14 Funding spread, in bp 55 183 120 Loss severity, in % 0 100 68 Prepayment rate, in % 0 9 7 Recovery rate, in % 12 81 38 of which 520 Market comparable Price, in % 84 116 99 of which 12 Option model Correlation, in % 49 50 50 Credit spread, in bp 13 865 250 Short-term borrowings 701 of which 58 Discounted cash flow Credit spread, in bp (4) 992 722 Recovery rate, in % 35 40 39 of which 508 Option model Buyback probability, in % 50 100 66 Correlation, in % (50) 100 56 Fund gap risk, in % 3 0 2 0 Volatility, in % 3 158 30 Long-term debt 7,268 of which structured notes over one year and up to two years 1,133 of which 48 Discounted cash flow Credit spread, in bp 35 189 52 Recovery rate, in % 25 25 25 of which 1,051 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 55 Fund gap risk, in % 3 0 2 0 Gap risk, in % 0 4 1 Volatility, in % 0 158 24 of which structured notes over two years 5,526 of which 1,380 Discounted cash flow Credit spread, in bp (14) 481 58 Recovery rate, in % 23 40 38 of which 9 Market comparable Price, in % 27 46 27 of which 3,961 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 55 Gap risk, in % 3 0 2 0 Mean reversion, in % 4 (10) 0 (5) Volatility, in % 0 158 21 1 Weighted average is calculated based on the fair value of the instruments. 2 Estimate of probability of structured notes being put back to the Group at the option of the investor over the remaining life of the financial instruments. 3 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. 4 Management's best estimate of the speed at which interest rates will revert to the long-term average. Qualitative discussion of the ranges of significant unobservable inputs The level of aggregation and diversity within the financial instruments disclosed in the tables above results in certain ranges of significant inputs being wide and unevenly distributed across asset and liability categories. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the Group’s qualitative discussion of the ranges of signification unobservable inputs. Investment funds measured at net asset value per share Certain investment funds are measured at net asset value per share. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on investment funds measured at net asset value per share. Assets and liabilities measured at fair value on a nonrecurring basis Certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, they are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on assets and liabilities measured at fair value on a nonrecurring basis. Fair value option The Group has availed itself of the simplification in accounting offered under the fair value option. This has been accomplished generally by electing the fair value option, both at initial adoption and for subsequent transactions, on items impacted by the hedge accounting requirements of US GAAP. For instruments for which hedge accounting could not be achieved but for which the Group is economically hedged, the Group has generally elected the fair value option. Where the Group manages an activity on a fair value basis but previously has been unable to achieve fair value accounting, the Group has generally utilized the fair value option to align its financial accounting to its risk management reporting. > Refer to “Note 36 – Financial instruments” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for further information on the Group’s election of the fair value option. Difference between the aggregate fair value and unpaid principal balances of fair value option-elected financial instruments 2Q21 4Q20 Aggregate Aggregate Aggregate Aggregate Financial instruments (CHF million) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 69,465 69,314 151 57,994 57,895 99 Loans 11,101 11,804 (703) 11,408 12,079 (671) Other assets 1 9,448 12,122 (2,674) 7,834 10,090 (2,256) Due to banks and customer deposits (538) (471) (67) (578) (489) (89) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (10,983) (10,982) (1) (13,594) (13,578) (16) Short-term borrowings (8,554) (8,556) 2 (10,740) (10,632) (108) Long-term debt 2 (69,436) (71,204) 1,768 (70,976) (73,842) 2,866 Other liabilities (883) (1,844) 961 (616)
Bank
Financial instruments	30 Financial instruments > Refer to “Note 31 – Financial instruments” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and to “Note 35 – Financial instruments” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Assets and liabilities measured at fair value on a recurring basis 1 Assets 2 Assets (CHF million) Cash and due from banks 0 141 0 – – 141 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 69,465 0 – – 69,465 Securities received as collateral 33,337 5,265 84 – – 38,686 Trading assets 63,427 161,961 5,938 (101,447) 805 130,684 of which debt securities 11,267 44,747 1,655 – 70 57,739 of which foreign government 10,885 11,376 40 – – 22,301 of which corporates 265 9,973 889 – 70 11,197 of which RMBS 0 20,528 477 – – 21,005 of which equity securities 41,098 2,172 282 – 735 44,287 of which derivatives 9,422 113,297 2,883 (101,447) – 24,155 of which interest rate products 1,212 55,930 805 – – – of which foreign exchange products 220 19,512 139 – – – of which equity/index-related products 7,941 32,473 490 – – – of which other derivatives 0 146 1,073 – – – of which other trading assets 1,640 1,745 1,118 – – 4,503 Investment securities 33 759 0 – – 792 Other investments 13 7 2,231 – 495 2,746 of which other equity investments 13 7 1,353 – 373 1,746 of which life finance instruments 0 0 877 – – 877 Loans 0 8,173 2,928 – – 11,101 of which commercial and industrial loans 0 1,712 1,411 – – 3,123 of which financial institutions 0 3,958 643 – – 4,601 Other intangible assets (mortgage servicing rights) 0 0 189 – – 189 Other assets 155 9,191 1,436 (440) – 10,342 of which failed purchases 126 1,590 12 – – 1,728 of which loans held-for-sale 0 6,433 1,287 – – 7,720 Total assets at fair value 96,965 254,962 12,806 (101,887) 1,300 264,146 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 330 0 – – 330 Customer deposits 0 3,489 432 – – 3,921 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 11,080 0 – – 11,080 Obligation to return securities received as collateral 33,337 5,265 84 – – 38,686 Trading liabilities 24,903 113,741 3,035 (108,708) – 32,971 of which debt securities 3,230 4,824 0 – – 8,054 of which foreign government 3,131 1,002 0 – – 4,133 of which equity securities 12,133 141 41 – – 12,315 of which derivatives 9,540 108,776 2,994 (108,708) – 12,602 of which interest rate products 1,184 52,145 142 – – – of which foreign exchange products 176 20,973 62 – – – of which equity/index-related products 8,127 29,143 1,738 – – – Short-term borrowings 0 7,448 1,106 – – 8,554 Long-term debt 0 58,813 9,673 – – 68,486 of which structured notes over one year and up to two years 0 11,742 2,124 – – 13,866 of which structured notes over two years 0 24,088 6,777 – – 30,865 of which high-trigger instruments 0 11,124 0 – – 11,124 Other liabilities 90 7,537 535 (271) – 7,891 Total liabilities at fair value 58,330 207,703 14,865 (108,979) – 171,919 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Assets 2 Assets (CHF million) Cash and due from banks 0 525 0 – – 525 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 57,994 0 – – 57,994 Securities received as collateral 44,074 6,598 101 – – 50,773 Trading assets 87,746 181,303 7,535 (119,731) 658 157,511 of which debt securities 16,321 45,903 2,253 – 55 64,532 of which foreign government 15,908 11,909 140 – – 27,957 of which corporates 353 9,936 1,270 – 55 11,614 of which RMBS 0 20,882 557 – – 21,439 of which equity securities 60,080 2,466 124 – 603 63,273 of which derivatives 9,297 132,054 3,911 (119,731) – 25,531 of which interest rate products 3,036 71,043 733 – – – of which foreign exchange products 42 24,259 143 – – – of which equity/index-related products 6,150 31,945 1,186 – – – of which other derivatives 22 110 1,079 – – – of which other trading assets 2,048 880 1,247 – – 4,175 Investment securities 1 604 0 – – 605 Other investments 13 6 3,054 – 720 3,793 of which other equity investments 13 6 2,132 – 609 2,760 of which life finance instruments 0 0 920 – – 920 Loans 0 7,739 3,669 – – 11,408 of which commercial and industrial loans 0 2,187 1,347 – – 3,534 of which financial institutions 0 3,506 1,082 – – 4,588 Other intangible assets (mortgage servicing rights) 0 0 180 – – 180 Other assets 137 7,315 1,825 (904) – 8,373 of which failed purchases 109 1,229 51 – – 1,389 of which loans held-for-sale 0 4,870 1,576 – – 6,446 Total assets at fair value 131,971 262,084 16,364 (120,635) 1,378 291,162 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 413 0 – – 413 Customer deposits 0 3,895 448 – – 4,343 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 13,688 0 – – 13,688 Obligation to return securities received as collateral 44,074 6,598 101 – – 50,773 Trading liabilities 33,543 138,018 4,246 (129,937) 1 45,871 of which equity securities 20,527 111 55 – 1 20,694 of which derivatives 10,535 132,956 4,191 (129,937) – 17,745 of which interest rate products 3,264 68,229 169 – – – of which foreign exchange products 51 28,819 72 – – – of which equity/index-related products 7,149 30,612 2,010 – – – of which credit derivatives 0 4,663 1,335 – – – Short-term borrowings 0 10,039 701 – – 10,740 Long-term debt 0 62,957 7,286 – – 70,243 of which structured notes over one year and up to two years 0 11,787 1,133 – – 12,920 of which structured notes over two years 0 28,330 5,526 – – 33,856 of which high-trigger instruments 0 10,627 0 – – 10,627 Other liabilities 0 6,675 1,250 (169) – 7,756 Total liabilities at fair value 77,617 242,283 14,032 (130,106) 1 203,827 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis for level 3 Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading assets 7,535 594 (1,635) 2,472 (2,976) 508 (1,119) 39 140 0 0 0 0 380 5,938 128 of which debt securities 2,253 296 (736) 1,859 (2,285) 0 0 (7) 138 0 0 0 0 137 1,655 103 of which corporates 1,270 137 (176) 1,403 (1,913) 0 0 (5) 95 0 0 0 0 78 889 99 of which derivatives 3,911 179 (856) 0 0 508 (1,033) 29 (30) 0 0 0 0 175 2,883 72 of which interest rate products 733 59 (81) 0 0 114 (59) 0 18 0 0 0 0 21 805 54 of which other derivatives 1,079 0 0 0 0 153 (157) 0 (55) 0 0 0 0 53 1,073 (60) of which other trading assets 1,247 22 (32) 493 (617) 0 (86) 10 21 0 0 0 0 60 1,118 (47) Other investments 3,054 3 (753) 20 (473) 0 0 0 (17) 0 318 0 0 79 2,231 46 of which other equity investments 2,132 0 (753) 3 (375) 0 0 0 (6) 0 318 0 0 34 1,353 55 of which life finance instruments 920 0 0 17 (94) 0 0 0 (11) 0 0 0 0 45 877 18 Loans 2 3,669 22 (533) 357 (73) 162 (946) 8 85 0 1 0 0 176 2,928 25 of which commercial and industrial loans 2 1,347 22 (12) 10 (31) 119 (184) 14 57 0 1 0 0 68 1,411 36 of which financial institutions 1,082 0 (222) 0 (42) 32 (296) 3 40 0 0 0 0 46 643 4 Other intangible assets (mortgage servicing rights) 180 0 0 22 0 0 0 0 0 0 (22) 0 0 9 189 (22) Other assets 1,825 164 (451) 2,500 (2,176) 77 (573) 13 (42) 0 0 0 0 99 1,436 (76) of which loans held-for-sale 1,576 164 (409) 2,469 (2,137) 77 (571) 11 19 0 0 0 0 88 1,287 (41) Total assets at fair value 16,364 783 (3,372) 5,435 (5,784) 747 (2,638) 60 166 0 297 0 0 748 12,806 101 Liabilities (CHF million) Customer deposits 448 0 0 0 0 0 0 0 (8) 0 0 0 (13) 5 432 10 Obligation to return securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading liabilities 4,246 584 (1,961) 80 (24) 710 (1,138) 152 169 0 0 0 0 217 3,035 779 of which derivatives 4,191 566 (1,961) 69 (4) 710 (1,138) 152 193 0 0 0 0 216 2,994 781 of which equity/index-related derivatives 2,010 427 (1,049) 0 0 350 (527) 151 265 0 0 0 0 111 1,738 529 Short-term borrowings 701 155 (207) 0 0 930 (608) (1) 95 0 0 0 0 41 1,106 67 Long-term debt 7,286 2,697 (2,046) 0 0 4,401 (3,119) 62 (8) 0 0 (3) (30) 433 9,673 203 of which structured notes over one year and up to two years 1,133 1,165 (732) 0 0 1,127 (771) 39 97 0 0 0 (1) 67 2,124 39 of which structured notes over two years 5,526 1,532 (1,287) 0 0 3,020 (2,227) 24 (109) 0 0 (2) (29) 329 6,777 (59) Other liabilities 1,250 7 (533) 24 (46) 59 (416) 8 (8) 102 38 0 0 50 535 2 Total liabilities at fair value 14,032 3,443 (4,747) 168 (156) 6,100 (5,281) 221 240 102 38 (3) (43) 751 14,865 1,061 Net assets/(liabilities) at fair value 2,332 (2,660) 1,375 5,267 (5,628) (5,353) 2,643 (161) (74) (102) 259 3 43 (3) (2,059) (960) 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M21, changes in net unrealized gains/(losses) of CHF (1,003) Assets and liabilities measured at fair value on a recurring basis for level 3 (continued) Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading assets 7,885 2,489 (1,502) 4,272 (4,657) 1,290 (1,625) 169 796 (1) 0 0 0 (319) 8,797 1,076 of which debt securities 1,923 1,654 (708) 2,527 (2,000) 0 0 59 (122) 0 0 0 0 (135) 3,198 (19) of which corporates 1,128 559 (564) 1,718 (1,230) 0 0 67 42 0 0 0 0 (78) 1,642 96 of which RMBS 317 902 (70) 557 (525) 0 0 (4) (70) 0 0 0 0 (5) 1,102 (55) of which derivatives 3,534 719 (629) 0 0 1,290 (1,606) 111 834 (1) 0 0 0 (151) 4,101 999 of which equity/index-related products 1,040 220 (240) 0 0 345 (597) 35 345 0 0 0 0 (81) 1,067 361 of which credit derivatives 879 379 (305) 0 0 700 (771) 100 211 0 0 0 0 (21) 1,172 325 of which other derivatives 909 0 0 0 0 155 (165) 0 207 0 0 0 0 (21) 1,085 210 of which other trading assets 2,231 100 (144) 1,707 (2,639) 0 (19) (1) 151 0 0 0 0 (30) 1,356 11 Other investments 2,523 2 0 371 (107) 0 0 0 95 0 (19) 0 0 (26) 2,839 38 of which other equity investments 1,463 1 0 354 (19) 0 0 0 (11) 0 (18) 0 0 (5) 1,765 (35) of which life finance instruments 1,052 0 0 17 (88) 0 0 0 106 0 0 0 0 (21) 1,066 74 Loans 2 3,835 641 (375) 90 (479) 742 (569) 38 (336) 0 0 0 0 (74) 3,513 (296) of which commercial and industrial loans 2 1,402 390 (137) 45 (282) 447 (173) 3 (194) 0 0 0 0 (28) 1,473 (205) of which financial institutions 1,201 44 (94) 0 (32) 275 (211) 13 (70) 0 0 0 0 (26) 1,100 (77) Other intangible assets (mortgage servicing rights) 244 0 0 0 0 0 0 0 0 0 (31) 0 0 (4) 209 (31) Other assets 1,846 1,432 (383) 2,400 (2,260) 282 (543) 16 (60) 0 0 0 0 (149) 2,581 (6) of which loans held-for-sale 1,619 1,409 (339) 2,373 (2,259) 282 (543) (8) (87) 0 0 0 0 (143) 2,304 (87) Total assets at fair value 16,334 4,564 (2,260) 7,306 (7,504) 2,314 (2,737) 223 495 (1) (50) 0 0 (575) 18,109 781 Liabilities (CHF million) Customer deposits 474 0 0 0 0 0 (27) 0 35 0 0 0 (22) (27) 433 9 Obligation to return securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading liabilities 3,854 513 (904) 210 (195) 1,602 (1,276) 184 (151) (5) 0 0 0 (105) 3,727 577 of which derivatives 3,801 497 (904) 0 (3) 1,602 (1,276) 184 (136) (5) 0 0 0 (103) 3,657 575 of which equity/index-related derivatives 1,921 126 (493) 0 0 585 (486) 69 (262) 0 0 0 0 (59) 1,401 274 of which credit derivatives 1,211 333 (373) 0 0 896 (574) 117 (21) 0 0 0 0 (31) 1,558 135 Short-term borrowings 997 52 (200) 0 0 470 (706) (2) (118) 0 0 0 0 (13) 480 (40) Long-term debt 12,749 1,720 (5,514) 0 0 4,294 (3,614) 461 (1,241) 0 0 87 (165) (272) 8,505 (107) of which structured notes over one year and up to two years 891 186 (423) 0 0 632 (435) 28 (111) 0 0 1 5 (18) 756 (30) of which structured notes over two years 11,458 707 (5,077) 0 0 3,631 (3,140) 433 (1,138) 0 0 87 (170) (245) 6,546 (89) Other liabilities 1,367 168 (112) 195 (227) 64 (283) (27) (17) 0 84 0 0 (27) 1,185 44 Total liabilities at fair value 19,442 2,453 (6,730) 578 (423) 6,430 (5,906) 616 (1,492) (5) 84 87 (187) (447) 14,500 483 Net assets/(liabilities) at fair value (3,108) 2,111 4,470 6,728 (7,081) (4,116) 3,169 (393) 1,987 4 (134) (87) 187 (128) 3,609 298 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues. As of 6M20, changes in net unrealized gains/(losses) of CHF 284 million and CHF (36) 2 Includes an adjustment of CHF 119 million reflecting the impact of applying the fair value option on certain loans (previously held at amortized cost) at the adoption of the ASU 2019-05. Difference between the fair value and the unpaid principal balances of fair value option-elected financial instruments 6M21 2020 Aggregate Aggregate Aggregate Aggregate Financial instruments (CHF million) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 69,465 69,314 151 57,994 57,895 99 Loans 11,101 11,804 (703) 11,408 12,079 (671) Other assets 1 9,448 12,122 (2,674) 7,834 10,090 (2,256) Due to banks and customer deposits (538) (471) (67) (578) (489) (89) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (11,080) (11,079) (1) (13,688) (13,672) (16) Short-term borrowings (8,554) (8,556) 2 (10,740) (10,632) (108) Long-term debt 2 (68,486) (70,327) 1,841 (70,243) (73,175) 2,932 Other liabilities (883) (1,844) 961 (616) (1,569) 953 Non-performing and non-interest-earning loans 3 591 3,543 (2,952) 543 3,364 (2,821) 1 Primarily loans held-for-sale. 2 Long-term debt includes both principal-protected and non-principal protected instruments. For non-principal-protected instruments, the original notional amount has been reported in the aggregate unpaid principal. 3 Included in loans or other assets. Gains and losses on financial instruments 6M21 6M20 Net Net Financial instruments (CHF million) Interest-bearing deposits with banks 18 1 1 1 of which related to credit risk 8 (6) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 306 1 789 1 Other investments 293 2 205 3 of which related to credit risk 0 1 Loans 277 1 (247) 3 of which related to credit risk 59 (575) Other assets 405 1 416 1 of which related to credit risk 173 (19) Due to banks and customer deposits (37) 3 (39) 3 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (29) 1 (82) 1 Short-term borrowings (406) 3 (16) 3 of which related to credit risk (1) 1 Long-term debt (3,347) 3 1,842 3 of which related to credit risk 0 14 Other liabilities 120 2 (102) 3 of which related to credit risk 67 (124) 1 Primarily recognized in net interest income. 2 Primarily recognized in other revenues. 3 Primarily recognized in trading revenues. Gains/(losses) attributable to changes in investment-specific credit risk 1 Gains/(losses) recorded 1 in 6M21 Cumulative 6M20 6M21 6M20 Financial instruments (CHF million) Customer deposits 13 (64) 23 0 0 Short-term borrowings 13 (55) (22) 0 0 Long-term debt (21) (2,397) 1,723 77 99 of which treasury debt over two years (321) (1,044) 1,306 0 0 of which structured notes over two years 269 (1,262) 300 77 99 Total 5 (2,516) 1,724 77 99 1 Amounts are reflected gross of tax. Carrying value and fair value of financial instruments not carried at fair value Carrying end of Level 1 Level 2 Level 3 Total 6M21 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 25,179 0 25,180 0 25,180 Loans 293,508 0 288,871 13,252 302,123 Other financial assets 1 160,724 144,457 16,058 273 160,788 Financial liabilities Due to banks and customer deposits 415,020 239,969 175,118 0 415,087 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 9,941 0 9,941 0 9,941 Short-term borrowings 17,665 0 17,666 0 17,666 Long-term debt 95,807 0 95,840 2,955 98,795 Other financial liabilities 2 14,484 0 14,069 382 14,451 2020 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 21,139 0 21,139 0 21,139 Loans 285,570 0 281,097 14,534 295,631 Other financial assets 1 154,441 137,763 16,399 302 154,464 Financial liabilities Due to banks and customer deposits 403,704 235,477 168,262 0 403,739 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 10,256 0 10,256 0 10,256 Short-term borrowings 10,568 0 10,569 0 10,569 Long-term debt 90,035 0 90,716 2,317 93,033 Other financial liabilities 2 16,131 0 15,694 403 16,097 1 Primarily includes cash and due from banks, interest-bearing deposits with banks, loans held-for-sale, cash collateral on derivative instruments, interest and fee receivables and non-marketable equity securities. 2 Primarily includes cash collateral on derivative instruments and interest and fee payables.

Assets pledged and collateral

Assets pledged and collateral	6 Months Ended
	Jun. 30, 2021
Assets pledged and collateral	32 Assets pledged and collateral The Group pledges assets mainly for repurchase agreements and other securities financing. Certain pledged assets may be encumbered, meaning they have the right to be sold or repledged. The encumbered assets are disclosed on the consolidated balance sheet. Assets pledged end of 2Q21 4Q20 CHF million Total assets pledged or assigned as collateral 116,523 144,355 of which encumbered 55,154 82,950 1 1 Prior period has been corrected. Collateral The Group receives cash and securities in connection with resale agreements, securities borrowing and loans, derivative transactions and margined broker loans. A significant portion of the collateral and securities received by the Group was sold or repledged in connection with repurchase agreements, securities sold not yet purchased, securities borrowings and loans, pledges to clearing organizations, segregation requirements under securities laws and regulations, derivative transactions and bank loans. Collateral end of 2Q21 4Q20 1 CHF million Fair value of collateral received with the right to sell or repledge 370,803 385,515 of which sold or repledged 135,894 158,567 1 Prior period has been corrected.
Bank
Assets pledged and collateral	31 Assets pledged and collateral > Refer to “Note 32 – Assets pledged and collateral” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 and to ”Note 36 – Assets pledged and collateral” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for further information. Assets pledged end of 6M21 2020 CHF million Total assets pledged or assigned as collateral 116,523 144,355 of which encumbered 55,154 82,950 1 1 Prior period has been corrected. Collateral end of 6M21 2020 1 CHF million Fair value of collateral received with the right to sell or repledge 370,803 385,515 of which sold or repledged 135,894 158,567 1 Prior period has been corrected.

Litigation

Litigation	6 Months Ended
	Jun. 30, 2021
Litigation	33 Litigation The Group is involved in a number of judicial, regulatory and arbitration proceedings concerning matters arising in connection with the conduct of its businesses. The Group’s material proceedings, related provisions and estimate of the aggregate range of reasonably possible losses that are not covered by existing provisions are described in Note 40 – Litigation in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 The Group accrues loss contingency litigation provisions and takes a charge to income in connection with certain proceedings when losses, additional losses or ranges of loss are probable and reasonably estimable. The Group also accrues litigation provisions for the estimated fees and expenses of external lawyers and other service providers in relation to such proceedings, including in cases for which it has not accrued a loss contingency provision. The Group accrues these fee and expense litigation provisions and takes a charge to income in connection therewith when such fees and expenses are probable and reasonably estimable. The Group reviews its legal proceedings each quarter to determine the adequacy of its litigation provisions and may increase or release provisions based on management’s judgment and the advice of counsel. The establishment of additional provisions or releases of litigation provisions may be necessary in the future as developments in such proceedings warrant. The specific matters described include (a) proceedings where the Group has accrued a loss contingency provision, given that it is probable that a loss may be incurred and such loss is reasonably estimable; and (b) proceedings where the Group has not accrued such a loss contingency provision for various reasons, including, but not limited to, the fact that any related losses are not reasonably estimable. The description of certain of the matters includes a statement that the Group has established a loss contingency provision and discloses the amount of such provision; for the other matters no such statement is made. With respect to the matters for which no such statement is made, either (a) the Group has not established a loss contingency provision, in which case the matter is treated as a contingent liability under the applicable accounting standard, or (b) the Group has established such a provision but believes that disclosure of that fact would violate confidentiality obligations to which the Group is subject or otherwise compromise attorney-client privilege, work product protection or other protections against disclosure or compromise the Group’s management of the matter. The future outflow of funds in respect of any matter for which the Group has accrued loss contingency provisions cannot be determined with certainty based on currently available information, and accordingly may ultimately prove to be substantially greater (or may be less) than the provision that is reflected on the Group’s balance sheet. It is inherently difficult to determine whether a loss is probable or even reasonably possible or to estimate the amount of any loss or loss range for many of the Group’s legal proceedings. Estimates, by their nature, are based on judgment and currently available information and involve a variety of factors, including, but not limited to, the type and nature of the proceeding, the progress of the matter, the advice of counsel, the Group’s defenses and its experience in similar matters, as well as its assessment of matters, including settlements, involving other defendants in similar or related cases or proceedings. Factual and legal determinations, many of which are complex, must be made before a loss, additional losses or ranges of loss can be reasonably estimated for any proceeding. Most matters pending against the Group seek damages of an indeterminate amount. While certain matters specify the damages claimed, such claimed amount may not represent the Group’s reasonably possible losses. For certain of the proceedings discussed the Group has disclosed the amount of damages claimed and certain other quantifiable information that is publicly available. The Group’s aggregate litigation provisions include estimates of losses, additional losses or ranges of loss for proceedings for which such losses are probable and can be reasonably estimated. The Group does not believe that it can estimate an aggregate range of reasonably possible losses for certain of its proceedings because of their complexity, the novelty of some of the claims, the early stage of the proceedings, the limited amount of discovery that has occurred and/or other factors. The Group’s estimate of the aggregate range of reasonably possible losses that are not covered by existing provisions for the proceedings discussed in Note 40 referenced above and updated in quarterly reports (including below) for which the Group believes an estimate is possible is zero to CHF 1.2 billion. In 2Q21, the Group recorded net litigation provisions of CHF 265 million. After taking into account its litigation provisions, the Group believes, based on currently available information and advice of counsel, that the results of its legal proceedings, in the aggregate, will not have a material adverse effect on the Group’s financial condition. However, in light of the inherent uncertainties of such proceedings, including those brought by regulators or other governmental authorities, the ultimate cost to the Group of resolving such proceedings may exceed current litigation provisions and any excess may be material to its operating results for any particular period, depending, in part, upon the operating results for such period. Mortgage-related matters Government and regulatory related matters DOJ RMBS settlement As previously disclosed, on January 18, 2017, Credit Suisse Securities (USA) LLC (CSS LLC) and its current and former US subsidiaries and US affiliates reached a settlement with the US Department of Justice (DOJ) related to its legacy residential mortgage-backed securities (RMBS) business, a business conducted through 2007. The settlement resolved potential civil claims by the DOJ related to certain of those Credit Suisse entities’ packaging, marketing, structuring, arrangement, underwriting, issuance and sale of RMBS. Pursuant to the terms of the settlement a civil monetary penalty was paid to the DOJ in January 2017. The settlement also required the above-mentioned entities to provide certain levels of consumer relief measures, including affordable housing payments and loan forgiveness, and the DOJ and Credit Suisse agreed to the appointment of an independent monitor to oversee the completion of the consumer relief requirements of the settlement. Credit Suisse currently anticipates that it will take much longer than the five-year period provided in the settlement to satisfy in full its obligations in respect of these consumer relief measures and that it may only complete them by 2026 or later, subject to market conditions and the Group’s risk appetite. In light of Credit Suisse’s current plans as to how it will satisfy these obligations, Credit Suisse expects to incur additional costs beyond those previously anticipated in relation to satisfying those obligations. The amount of consumer relief Credit Suisse must provide also will increase after 2021 pursuant to the original settlement by 5% NJAG litigation On June 17, 2021, in the civil action filed against CSS LLC and affiliated entities in the Superior Court of New Jersey, Chancery Division, Mercer County (SCNJ) by the New Jersey Attorney General (NJAG), on behalf of the State of New Jersey, the SCNJ entered orders granting the motion for partial summary judgment filed by the NJAG and denying the cross-motion for partial summary judgment filed by CSS LLC and its affiliates. Civil litigation The amounts disclosed below do not reflect actual realized plaintiff losses to date or anticipated future litigation exposure. Rather, unless otherwise stated, these amounts reflect the original unpaid principal balance amounts as alleged in these actions and do not include any reduction in principal amounts since issuance. Repurchase litigations On May 6, 2021, in the action brought by Home Equity Asset Trust 2007-1 against DLJ Mortgage Capital, Inc. (DLJ), in which plaintiff alleges damages of not less than USD 420 million, following oral argument before the New York State Court of Appeals in DLJ’s appeal from the denial of its motion for partial summary judgment, the New York State Court of Appeals ordered re-argument of the appeal. On June 1, 2021, the Supreme Court for the State of New York, New York County (SCNY) postponed the commencement of the trial that had been scheduled to begin on October 11, 2021 until May 31, 2022. The commencement of the trial remains subject to the final resolution of DLJ’s summary judgment appeal. On June 4, 2021, following the parties’ April 19, 2021 settlement of the actions, which remains subject to approval in a trust instruction proceeding to be brought in Minnesota state court by the trustee of the plaintiff trusts, the SCNY vacated the trial that had been scheduled to begin on January 10, 2022 in two consolidated actions filed against DLJ and its affiliate Select Portfolio Servicing, Inc.: one action brought by Home Equity Mortgage Trust Series 2006-1, Home Equity Mortgage Trust Series 2006-3 and Home Equity Mortgage Trust Series 2006-4, in which plaintiffs allege damages of not less than USD 730 million; and one action brought by Home Equity Mortgage Trust Series 2006-5, in which plaintiff alleges damages of not less than USD 500 million. Bank loan litigation On June 25, 2021, in the Texas state court action against CSS LLC and certain of its affiliates brought by entities related to Highland Capital Management LP, the trial court entered a new judgment. This new judgment followed the Texas Supreme Court’s decision that reversed a portion of the September 4, 2015 judgment and dismissed various claims, but left standing the separate December 2014 jury verdict for plaintiff on its claims for fraudulent inducement by affirmative misrepresentation and remanded the case back to the trial court for further proceedings related to the calculation of damages and interest. The new judgment of June 25, 2021 awarded plaintiff a total of approximately USD 121 million. CSS LLC and its affiliates filed a notice of appeal from the judgment on July 23, 2021. Rates-related matters Regulatory Matters On July 8, 2021, in the investigation by the European Commission alleging that Credit Suisse entities engaged in anticompetitive practices in connection with their supranational, sub-sovereign and agency (SSA) bonds trading business, Credit Suisse appealed the April 28, 2021 decision imposing a fine of EUR 11.9 million to the EU General Court. Civil litigation USD ICE LIBOR litigation On June 3, 2021, in the civil action brought in the US District Court for the Northern District of California alleging that members of the ICE LIBOR panel, including Credit Suisse Group AG and certain of its affiliates, manipulated ICE LIBOR to profit from variable interest loans and credit cards, the court denied defendants’ motion to transfer the case to the US District Court for the Southern District of New York (SDNY). Treasury markets litigation On May 14, 2021, in the consolidated putative class action relating to the US treasury markets, plaintiffs filed an amended complaint against CSS LLC, Credit Suisse International (CSI) and other defendants. On July 20, 2021, the SDNY entered a stipulation voluntarily dismissing CSI. SSA bonds litigation On July 19, 2021, in the consolidated class action litigation brought in the SDNY relating to SSA bonds, the United States Circuit Court of Appeals for the Second Circuit affirmed the SDNY’s September 30, 2019 and March 18, 2020 decisions granting defendants’ motions to dismiss. Government-sponsored entity bonds litigation In the four civil actions brought in the US District Court for the Middle District of Louisiana, the parties entered into an agreement to settle all claims. On June 9, 2021, plaintiffs voluntarily dismissed each action. Credit default swap auction litigation On June 30, 2021, Credit Suisse Group AG and affiliates, along with other banks and entities, were named in a putative class action complaint filed in the US District Court for the District of New Mexico alleging manipulation of credit default swap final auction prices. OTC trading cases On June 29, 2021, in the putative class action brought against certain Credit Suisse AG affiliates, as well as other financial institutions, alleging that the defendants conspired to keep stock-loan trading in an over-the-counter market and collectively boycotted certain trading platforms that sought to enter the market, defendants filed their opposition to plaintiffs’ motion for class certification. External asset manager matter On April 15, 2021, the Geneva Prosecutor’s Office issued an order closing and discontinuing the criminal investigation against Credit Suisse AG and its employees in connection with alleged criminal offenses committed by an external asset manager based in Geneva. In May 2021, Credit Suisse completed the second and final stage of the settlement with affected clients. Mozambique matter Credit Suisse is in ongoing dialogue with regulatory and enforcement authorities regarding their inquiries into certain Credit Suisse entities’ arrangement of loan financing to Mozambique state enterprises, Proindicus S.A. and Empresa Mocambiacana de Atum S.A. (EMATUM), a distribution to private investors of loan participation notes (LPN) related to the EMATUM financing in September 2013, and certain Credit Suisse entities’ subsequent role in arranging the exchange of those LPNs for Eurobonds issued by the Republic of Mozambique. The English High Court has scheduled trial to begin in October 2023 in the litigation filed by the Republic of Mozambique against certain Credit Suisse entities, three former employees and several other unrelated entities. On June 3, 2021, United Bank for Africa PLC, a member of the ProIndicus syndicate, brought a claim against certain Credit Suisse entities seeking, contingent on the Republic of Mozambique’s claim, a declaration that Credit Suisse is liable to compensate it for alleged losses suffered as a result of any invalidity of the sovereign guarantee. The Credit Suisse entities filed their defense to this claim on July 1, 2021. ETN-related litigation On June 4, 2021, in the individual action brought in the SDNY by a purchaser of VelocityShares Daily Inverse VIX Short Term Exchange Traded Notes linked to the S&P 500 VIX Short-Term Futures Index due December 4, 2030 (XIV ETNs), which asserts claims similar to those brought in the consolidated class action complaint as well as additional claims under Pennsylvania state law, plaintiff filed an amended complaint. On July 19, 2021, Credit Suisse AG filed a motion to dismiss. Bulgarian former clients matter Following charges brought in 2020 by the Swiss Office of the Attorney General against Credit Suisse AG and other parties concerning the diligence and controls applied to a historical relationship with Bulgarian former clients who are alleged to have laundered funds through Credit Suisse AG accounts, the Swiss Federal Criminal Court has scheduled trial to take place in February 2022. SCFF and Archegos matters We have received requests for documents and information in connection with inquiries, investigations and/or actions relating to the supply chain finance fund (SCFF) and/or Archegos matters by FINMA, the DOJ, the US Securities and Exchange Commission (SEC), the US Federal Reserve, the Commodity Futures Trading Commission (CFTC), the US Senate Banking Committee, the UK Financial Conduct Authority (FCA) and other regulatory and governmental agencies. Credit Suisse is cooperating with the authorities on these matters. In connection with FINMA’s enforcement actions, third parties appointed by it will conduct investigations into these matters. The Luxembourg Commission de Surveillance du Secteur Financier (CSSF) has also announced its intention to review the SCFF matter through a third party. On April 16, 2021, Credit Suisse Group AG and certain current and former executives were named in a putative class action complaint filed in the SDNY by a holder of Credit Suisse American Depositary Receipts, asserting claims for violations of Sections 10(b) and 20(a) of the US Securities Exchange Act of 1934 and Rule 10b-5 thereunder, alleging that defendants violated US securities laws by making material misrepresentations and omissions regarding Credit Suisse’s risk management practices with respect to the SCFF and Archegos matters. As these matters develop, we may become subject to additional litigation and regulatory inquiries, investigations and actions.
Bank
Litigation	32 Litigation > Refer to “Note 33 – Litigation” in III – Condensed consolidated financial statements – unaudited in the Credit Suisse Financial Report 2Q21 for further information.

Summary of significant accoun_2

Summary of significant accounting policies (Policies)	6 Months Ended
	Jun. 30, 2021
Basis of presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse Group AG (the Group) are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020 included in the Credit Suisse Annual Report 2020. > Refer to “Note 1 – Summary of significant accounting policies” in VI – Consolidated financial statements – Credit Suisse Group in the Credit Suisse Annual Report 2020 for a description of the Group’s significant accounting policies. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The 1Q21 consolidated statements of operations and comprehensive income, the 1Q21 consolidated balance sheet and the 1Q21 consolidated statement of changes in equity have been added for the convenience of the reader and are not a required presentation under US GAAP. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Bank
Basis of presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements of Credit Suisse AG (the Bank), the direct bank subsidiary of Credit Suisse Group AG (the Group), are prepared in accordance with accounting principles generally accepted in the US (US GAAP) and are stated in Swiss francs (CHF). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the year ended December 31, 2020, included in the Credit Suisse Group AG & Credit Suisse AG Annual Report 2020 (Credit Suisse Annual Report 2020). In addition, these condensed consolidated financial statements make references to the Group’s condensed consolidated financial statements in its 2Q21 and 1Q21 Financial Reports and the Group’s consolidated financial statements in the Credit Suisse Annual Report 2020. > Refer to “Note 1 – Summary of significant accounting policies” in VIII – Consolidated financial statements – Credit Suisse (Bank) in the Credit Suisse Annual Report 2020 for a description of the Bank’s significant accounting policies. Certain financial information, which is normally included in annual consolidated financial statements prepared in accordance with US GAAP, but not required for interim reporting purposes, has been condensed or omitted. Certain reclassifications have been made to the prior period’s consolidated financial statements to conform to the current period’s presentation. These condensed consolidated financial statements reflect, in the opinion of management, all adjustments that are necessary for a fair presentation of the condensed consolidated financial statements for the periods presented. The results of operations for interim periods are not indicative of results for the entire year. In preparing these condensed consolidated financial statements, management is required to make estimates and assumptions which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated balance sheets and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Segment information (Tables)

Segment information (Tables)	6 Months Ended
	Jun. 30, 2021
Net revenues and income/(loss) from continuing operations before taxes and total assets by segment	Net revenues and income/(loss) before taxes in 2Q21 1Q21 2Q20 6M21 6M20 Net revenues (CHF million) Swiss Universal Bank 1,477 1,449 1,474 2,926 2,928 International Wealth Management 930 987 905 1,917 1,937 Asia Pacific 798 1,060 808 1,858 1,643 Asset Management 404 386 361 790 806 Investment Bank 1,610 3,543 2,862 5,153 4,942 Corporate Center (116) 149 (216) 33 (286) Net revenues 5,103 7,574 6,194 12,677 11,970 Income/(loss) before taxes (CHF million) Swiss Universal Bank 725 665 656 1,390 1,187 International Wealth Management 340 408 256 748 601 Asia Pacific 250 524 196 774 414 Asset Management 104 115 84 219 248 Investment Bank (76) (2,467) 912 (2,543) 995 Corporate Center (530) (2) (553) (532) (693) Income/(loss) before taxes 813 (757) 1,551 56 2,752 Total assets end of 2Q21 1Q21 4Q20 Total assets (CHF million) Swiss Universal Bank 265,801 269,089 261,465 International Wealth Management 91,957 90,300 91,503 Asia Pacific 70,569 74,878 67,356 Asset Management 3,591 3,941 3,703 Investment Bank 248,775 292,843 270,488 Corporate Center 116,106 120,344 111,307 Total assets 796,799 851,395 805,822
Bank
Net revenues and income/(loss) from continuing operations before taxes and total assets by segment	Net revenues and income/(loss) before taxes in 6M21 6M20 Net revenues (CHF million) Swiss Universal Bank 2,926 2,928 International Wealth Management 1,917 1,937 Asia Pacific 1,858 1,643 Asset Management 790 806 Investment Bank 5,153 4,942 Adjustments 1 238 (241) Net revenues 12,882 12,015 Income/(loss) before taxes (CHF million) Swiss Universal Bank 1,390 1,187 International Wealth Management 748 601 Asia Pacific 774 414 Asset Management 219 248 Investment Bank (2,543) 995 Adjustments 1 (573) (863) Income/(loss) before taxes 15 2,582 1 Adjustments represent certain consolidating entries and balances, including those relating to items that are managed but are not legally owned by the Bank and vice versa, and certain revenues and expenses that were not allocated to the segments, including such items relating to the Asset Resolution Unit. Total assets end of 6M21 2020 Total assets (CHF million) Swiss Universal Bank 265,801 261,465 International Wealth Management 91,957 91,503 Asia Pacific 70,569 67,356 Asset Management 3,591 3,703 Investment Bank 248,775 270,488 Adjustments 1 119,427 115,173 Total assets 800,120 809,688 1 Adjustments represent certain consolidating entries and balances, including those relating to items that are managed but are not legally owned by the Bank and vice versa, and certain revenues and expenses that were not allocated to the segments, including such items relating to the Asset Resolution Unit.

Net interest income (Tables)

Net interest income (Tables)	6 Months Ended
	Jun. 30, 2021
Net interest income	in 2Q21 1Q21 2Q20 6M21 6M20 Net interest income (CHF million) Loans 1,277 1,265 1,488 2,542 3,130 Investment securities 0 0 2 0 3 Trading assets 1,109 1,314 1,566 2,423 3,231 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 311 341 391 652 936 Other 182 135 142 317 584 Interest and dividend income 2,879 3,055 3,589 5,934 7,884 Deposits (38) (51) (299) (89) (860) Short-term borrowings (40) (2) (76) (42) (152) Trading liabilities (453) (468) (717) (921) (1,473) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (209) (276) (211) (485) (505) Long-term debt (660) (543) (657) (1,203) (1,541) Other (63) (61) (59) (124) (249) Interest expense (1,463) (1,401) (2,019) (2,864) (4,780) Net interest income 1,416 1,654 1,570 3,070 3,104
Bank
Net interest income	in 6M21 6M20 Net interest income (CHF million) Loans 2,514 3,113 Investment securities 0 3 Trading assets 2,424 3,231 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 652 936 Other 318 584 Interest and dividend income 5,908 7,867 Deposits (84) (857) Short-term borrowings 1 (155) Trading liabilities (921) (1,473) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (485) (505) Long-term debt (1,182) (1,522) Other (124) (251) Interest expense (2,795) (4,763) Net interest income 3,113 3,104

Commissions and fees (Tables)

Commissions and fees (Tables)	6 Months Ended
	Jun. 30, 2021
Commissions and fees	in 2Q21 1Q21 2Q20 6M21 6M20 Commissions and fees (CHF million) Lending business 484 516 361 1,000 797 Investment and portfolio management 891 861 752 1,752 1,562 Other securities business 15 13 18 28 36 Fiduciary business 906 874 770 1,780 1,598 Underwriting 626 989 560 1,615 924 Brokerage 694 909 806 1,603 1,773 Underwriting and brokerage 1,320 1,898 1,366 3,218 2,697 Other services 448 449 383 897 715 Commissions and fees 3,158 3,737 2,880 6,895 5,807
Bank
Commissions and fees	in 6M21 6M20 Commissions and fees (CHF million) Lending business 997 786 Investment and portfolio management 1,699 1,508 Other securities business 29 40 Fiduciary business 1,728 1,548 Underwriting 1,664 981 Brokerage 1,624 1,774 Underwriting and brokerage 3,288 2,755 Other services 913 727 Commissions and fees 6,926 5,816

Trading revenues (Tables)

Trading revenues (Tables)	6 Months Ended
	Jun. 30, 2021
Trading revenues	in 2Q21 1Q21 2Q20 6M21 6M20 Trading revenues (CHF million) Interest rate products 154 752 1,374 906 (874) Foreign exchange products 358 148 539 506 1,110 Equity/index-related products (117) 1,001 (375) 884 (56) Credit products (271) (33) (682) (304) 1,217 Commodity and energy products (7) 9 69 2 97 Other products 36 (66) 329 (30) 687 Trading revenues 153 1,811 1,254 1,964 2,181 Represents revenues on a product basis which are not representative of business results within segments, as segment results utilize financial instruments across various product types.
Bank
Trading revenues	in 6M21 6M20 Trading revenues (CHF million) Interest rate products 893 (921) Foreign exchange products 497 1,113 Equity/index-related products 868 (88) Credit products (304) 1,217 Commodity and energy products 2 97 Other products (32) 687 Trading revenues 1,924 2,105 Represents revenues on a product basis which are not representative of business results within segments, as segment results utilize financial instruments across various product types.

Other revenues (Tables)

Other revenues (Tables)	6 Months Ended
	Jun. 30, 2021
Other revenues	in 2Q21 1Q21 2Q20 6M21 6M20 Other revenues (CHF million) Noncontrolling interests without SEI 4 (1) 0 3 0 Loans held-for-sale (58) (41) 5 (99) (16) Long-lived assets held-for-sale 3 (2) 6 1 10 Equity method investments 55 29 23 84 59 Other investments 131 199 223 330 451 Other 241 188 233 429 374 Other revenues 376 372 490 748 878
Bank
Other revenues	in 6M21 6M20 Other revenues (CHF million) Loans held-for-sale (99) (16) Long-lived assets held-for-sale 1 10 Equity method investments 84 58 Other investments 332 451 Other 601 487 Other revenues 919 990

Provision for credit losses (Ta

Provision for credit losses (Tables)	6 Months Ended
	Jun. 30, 2021
Provision for credit losses	in 2Q21 1Q21 2Q20 6M21 6M20 Provision for credit losses (CHF million) Loans held at amortized cost (28) (24) 264 (52) 691 Other financial assets held at amortized cost 56 1 4,434 1 21 4,490 1 36 Off-balance sheet credit exposures (53) (16) 11 (69) 137 Provision for credit losses (25) 4,394 296 4,369 864 1 Primarily reflects a provision for credit losses of CHF 70 million, CHF 4,430 million and CHF 4,500 million in 2Q21, 1Q21 and 6M21, respectively, related to the failure of Archegos to meet its margin commitments.
Bank
Provision for credit losses	in 6M21 6M20 Provision for credit losses (CHF million) Loans held at amortized cost (52) 691 Other financial assets held at amortized cost 4,494 1 32 Off-balance sheet credit exposures (69) 137 Provision for credit losses 4,373 860 1 Primarily reflects a provision for credit losses of CHF 4,500 million related to the failure of Archegos to meet its margin commitments.

Compensation and benefits (Tabl

Compensation and benefits (Tables)	6 Months Ended
	Jun. 30, 2021
Compensation and benefits	in 2Q21 1Q21 2Q20 6M21 6M20 Compensation and benefits (CHF million) Salaries and variable compensation 1,997 1,849 2,234 3,846 4,143 Social security 166 158 172 324 340 Other 1 193 200 188 393 427 Compensation and benefits 2,356 2,207 2,594 4,563 4,910 1 Includes pension-related expenses of CHF 120 million, CHF 130 million, CHF 113 million, CHF 250 million and CHF 263 million in 2Q21 1Q21 2Q20 6M21 6M20
Bank
Compensation and benefits	in 6M21 6M20 Compensation and benefits (CHF million) Salaries and variable compensation 3,449 3,711 Social security 278 293 Other 1 369 416 Compensation and benefits 4,096 4,420 1 Includes pension-related expenses of CHF 250 million and CHF 272 million in 6M21 and 6M20, respectively, relating to service costs for defined benefit pension plans and employer contributions for defined contribution pension plans.

General and administrative ex_2

General and administrative expenses (Tables)	6 Months Ended
	Jun. 30, 2021
General and administrative expenses	in 2Q21 1Q21 2Q20 6M21 6M20 General and administrative expenses (CHF million) Occupancy expenses 231 263 237 494 465 IT, machinery and equipment 383 373 357 756 707 Provisions and losses 273 57 133 330 205 Travel and entertainment 32 29 28 61 96 Professional services 454 373 377 827 752 Amortization and impairment of other intangible assets 2 2 1 4 3 Other 1 214 279 307 493 558 General and administrative expenses 1,589 1,376 1,440 2,965 2,786 1 Includes pension-related expenses/(credits) of CHF (42) (52) (40) (94) (80) 2Q21 1Q21 2Q20 6M21 6M20
Bank
General and administrative expenses	in 6M21 6M20 General and administrative expenses (CHF million) Occupancy expenses 449 415 IT, machinery and equipment 597 561 Provisions and losses 330 203 Travel and entertainment 52 85 Professional services 1,609 1,481 Amortization and impairment of other intangible assets 4 3 Other 1 623 747 General and administrative expenses 3,664 3,495 1 Includes pension-related expenses/(credits) of CHF (10)

Restructuring expenses (Tables)

Restructuring expenses (Tables)	6 Months Ended
	Jun. 30, 2021
Restructuring and Related Costs [Table Text Block]	Restructuring expenses by type in 2Q21 1Q21 2Q20 6M21 6M20 Restructuring expenses by type (CHF million) Compensation and benefits-related expenses 2 11 – 13 – of which severance expenses (1) 7 – 6 – of which accelerated deferred compensation 3 4 – 7 – General and administrative-related expenses 43 14 – 57 – of which pension expenses (4) (7) – (11) – Total restructuring expenses 45 25 – 70 –
Restructuring Provisions [Table Text Block]	Restructuring liabilities 2Q21 1Q21 2Q20 Compen- General and Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 39 3 42 50 2 52 – – – Net additional charges 1 (1) 26 25 7 10 17 – – – Utilization (16) (26) (42) (18) (9) (27) – – – Balance at end of period 22 3 25 39 3 42 – – – 1 The following items for which expense accretion was accelerated in 2Q21 and 1Q21 due to the restructuring of the Group are not included in the restructuring liabilities: unsettled share-based compensation of CHF 1 million and CHF 1 million, respectively, which remain classified as a component of total shareholders' equity; unsettled pension obligations of CHF (4) (7) Restructuring liabilities (continued) 6M21 6M20 Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 50 2 52 – – – Net additional charges 1 6 36 42 – – – Reclassifications – – – – – – Utilization (34) (35) (69) – – – Balance at end of period 22 3 25 – – – 1 The following items for which expense accretion was accelerated in 6M21 due to the restructuring of the Group are not included in the restructuring liabilities: unsettled share-based compensation of CHF 2 million; unsettled pension obligations of CHF (11)
Bank
Restructuring and Related Costs [Table Text Block]	Restructuring expenses by type in 6M21 6M20 Restructuring expenses by type (CHF million) Compensation and benefits-related expenses 14 – of which severance expenses 7 – of which accelerated deferred compensation 7 – General and administrative-related expenses 66 – of which pension expenses 4 – Total restructuring expenses 80 –
Restructuring Provisions [Table Text Block]	Restructuring liabilities 6M21 6M20 Compen- General and Compen- General and Restructuring liabilities (CHF million) Balance at beginning of period 47 2 49 – – – Net additional charges 1 7 30 37 – – – Reclassifications – – – – – – Utilization (32) (29) (61) – – – Balance at end of period 22 3 25 – – – 1 The following items for which expense accretion was accelerated in 6M21 due to the restructuring of the Bank are not included in the restructuring provision: unsettled share-based compensation of CHF 2 million; unsettled pension obligation related to restructuring of CHF 4

Earnings per share (Tables)

Earnings per share (Tables)	6 Months Ended
	Jun. 30, 2021
Earnings per share	in 2Q21 1Q21 2Q20 6M21 6M20 Basic net income/(loss) attributable to shareholders (CHF million) Net income/(loss) attributable to shareholders for basic earnings per share 253 (252) 1,162 1 2,476 Available for common shares 252 (252) 1,162 1 2,476 Available for mandatory convertible notes 1 – – – – Net income/(loss) attributable to shareholders for diluted earnings per share 253 (252) 1,162 1 2,476 Available for common shares 252 (252) 1,162 1 2,476 Available for mandatory convertible notes 1 – – – – Weighted-average shares outstanding (million) For basic earnings per share available for common shares 2,453.9 2,446.6 2,473.6 2,450.3 2,469.7 Dilutive share options and warrants 0.8 0.0 2.6 0.6 2.1 Dilutive share awards 55.1 0.0 35.2 73.6 47.7 For diluted earnings per share available for common shares 1 2,509.8 2,446.6 2 2,511.4 2,524.5 2,519.5 Weighted-average shares outstanding for basic/diluted earnings per share available for mandatory convertible notes 130.8 – – 65.4 – Earnings/(loss) per share available for common shares (CHF) Basic earnings/(loss) per share available for common shares 0.10 (0.10) 0.47 0.00 1.00 Diluted earnings/(loss) per share available for common shares 0.10 (0.10) 0.46 0.00 0.98 1 Weighted-average potential common shares relating to instruments that were not dilutive for the respective periods (and therefore not included in the diluted earnings per share calculation above) but could potentially dilute earnings per share in the future were 9.6 million, 6.5 million, 5.3 million, 8.1 million and 4.8 million for 2Q21, 1Q21, 2Q20, 6M21 and 6M20, respectively. 2 Due to the net loss in 1Q21, 0.4 million of weighted-average share options and warrants outstanding and 92.0 million of weighted-average share awards outstanding were excluded from the diluted earnings per share calculation, as the effect would be antidilutive.

Revenue from contracts with c_2

Revenue from contracts with customers (Tables)	6 Months Ended
	Jun. 30, 2021
Contract with Customer, Asset and Liability [Table Text Block]	Contracts with customers and disaggregation of revenues in 2Q21 1Q21 2Q20 6M21 6M20 Contracts with customers (CHF million) Investment and portfolio management 891 861 752 1,752 1,562 Other securities business 15 13 18 28 36 Underwriting 626 989 560 1,615 924 Brokerage 693 908 805 1,601 1,771 Other services 445 448 387 893 724 Total revenues from contracts with customers 2,670 3,219 2,522 5,889 5,017
Revenue from External Customers by Products and Services [Table Text Block]	Contract balances end of 2Q21 1Q21 4Q20 Contract balances (CHF million) Contract receivables 1,011 1,120 1,001 Contract liabilities 52 65 48 Revenue recognized in the reporting period included in the contract liabilities balance at the beginning of period 18 8 7
Bank
Contract with Customer, Asset and Liability [Table Text Block]	Contracts with customers and disaggregation of revenues in 6M21 6M20 Contracts with customers (CHF million) Investment and portfolio management 1,699 1,508 Other securities business 29 40 Underwriting 1,664 981 Brokerage 1,623 1,772 Other services 937 774 Total revenues from contracts with customers 5,952 5,075
Revenue from External Customers by Products and Services [Table Text Block]	Contract balances end of 2Q21 1Q21 4Q20 Contract balances (CHF million) Contract receivables 1,032 1,123 993 Contract liabilities 52 65 48 Revenue recognized in the reporting period included in the contract liabilities balance at the beginning of period 18 8 7

Trading assets and liabilities

Trading assets and liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Trading assets and liabilities	end of 2Q21 1Q21 4Q20 Trading assets (CHF million) Debt securities 57,620 64,128 64,395 Equity securities 44,226 60,340 63,237 Derivative instruments 1 24,156 28,638 25,531 Other 4,503 4,033 4,175 Trading assets 130,505 157,139 157,338 Trading liabilities (CHF million) Short positions 20,369 31,326 28,126 Derivative instruments 1 12,603 16,414 17,745 Trading liabilities 32,972 47,740 45,871 1 Amounts shown after counterparty and cash collateral netting.
Cash collateral receivables and payables	Cash collateral on derivative instruments end of 2Q21 1Q21 4Q20 Cash collateral on derivatives instruments – netted (CHF million) 1 Cash collateral paid 21,161 24,630 26,815 Cash collateral received 13,865 13,966 16,795 Cash collateral on derivatives instruments– not netted (CHF million) 2 Cash collateral paid 7,664 8,817 7,741 Cash collateral received 7,200 8,839 7,831 1 Recorded as cash collateral netting on derivative instruments in Note 24 – Offsetting of financial assets and financial liabilities. 2 Recorded as cash collateral on derivative instruments in Note 21 – Other assets and other liabilities.
Bank
Trading assets and liabilities	end of 6M21 2020 Trading assets (CHF million) Debt securities 57,739 64,532 Equity securities 44,287 63,273 Derivative instruments 1 24,155 25,531 Other 4,503 4,175 Trading assets 130,684 157,511 Trading liabilities (CHF million) Short positions 20,369 28,126 Derivative instruments 1 12,602 17,745 Trading liabilities 32,971 45,871 1 Amounts shown after counterparty and cash collateral netting.
Cash collateral receivables and payables	Cash collateral on derivative instruments end of 6M21 2020 Cash collateral on derivative instruments – netted (CHF million) 1 Cash collateral paid 21,162 26,885 Cash collateral received 13,865 16,795 Cash collateral on derivative instruments – not netted (CHF million) 2 Cash collateral paid 7,664 7,741 Cash collateral received 7,209 7,831 1 Recorded as cash collateral netting on derivative instruments in Note 23 – Offsetting of financial assets and financial liabilities. 2 Recorded as cash collateral on derivative instruments in Note 20 – Other assets and other liabilities.

Investment securities (Tables)

Investment securities (Tables)	6 Months Ended
	Jun. 30, 2021
Investment securities	end of 2Q21 1Q21 4Q20 Investment securities (CHF million) Debt securities available-for-sale 794 614 607 Total investment securities 794 614 607
Investment securities by type	Investment securities by type 2Q21 4Q20 Gross Gross Gross Gross Investment securities by type (CHF million) Swiss federal, cantonal or local government entities 2 0 0 2 3 0 0 3 Foreign governments 32 0 0 32 0 0 0 0 Corporate debt securities 757 4 1 760 593 11 0 604 Debt securities available-for-sale 791 4 1 794 596 11 0 607
Gross unrealized losses on investment securities and the related fair value	Proceeds from sales, realized gains and realized losses from debt securities available-for-sale in 6M21 6M20 Sales of debt securities available-for-sale (CHF million) Proceeds from sales 0 626 Realized gains 0 42
Amortized cost, fair value and average yield of debt securities	Amortized cost, fair value and average yield of debt securities Average 2Q21 (CHF million, except where indicated) Due within 1 year 174 174 0.03 Due from 1 to 5 years 2 2 3.81 Due from 5 to 10 years 615 618 0.02 Debt securities available-for-sale 791 794 0.03
Bank
Investment securities	end of 6M21 2020 Investment securities (CHF million) Debt securities available-for-sale 792 605 Total investment securities 792 605
Investment securities by type	Investment securities by type 6M21 2020 Gross Gross Gross Gross Investment securities by type (CHF million) Swiss federal, cantonal or local government entities 0 0 0 0 1 0 0 1 Foreign governments 32 0 0 32 0 0 0 0 Corporate debt securities 757 4 1 760 594 10 0 604 Debt securities available-for-sale 789 4 1 792 595 10 0 605
Gross unrealized losses on investment securities and the related fair value	Proceeds from sales, realized gains and realized losses from debt securities available-for-sale in 6M21 6M20 Sales of debt securities available-for-sale (CHF million) Proceeds from sales 0 626 Realized gains 0 42
Amortized cost, fair value and average yield of debt securities	Amortized cost, fair value and average yield of debt securities Average Due within 1 year 174 174 0.03 Due from 5 to 10 years 615 618 0.02 Debt securities available-for-sale 789 792 0.02

Other investments (Tables)

Other investments (Tables)	6 Months Ended
	Jun. 30, 2021
Other investments	end of 2Q21 1Q21 4Q20 Other investments (CHF million) Equity method investments 1,757 2,812 2,631 Equity securities (without a readily determinable fair value) 1 1,867 1,834 1,779 of which at net asset value 122 114 113 of which at measurement alternative 355 367 359 of which at fair value 1,343 1,321 1,278 of which at cost less impairment 47 32 29 Real estate held-for-investment 2 77 78 82 Life finance instruments 3 877 916 920 Total other investments 4,578 5,640 5,412 1 Includes private equity, hedge funds and restricted stock investments as well as certain investments in non-marketable mutual funds for which the Group has neither significant influence nor control over the investee. 2 As of the end of 2Q21 1Q21 4Q20 3 Includes single premium immediate annuity contracts.
Impairments and adjustments on equity securities at measurement alternative	Equity securities at measurement alternative in / end of 6M21 Cumulative 6M20 Impairments and adjustments (CHF million) Impairments and downward adjustments (5) (30) (3) Upward adjustments 0 137 137
Bank
Other investments	end of 6M21 2020 Other investments (CHF million) Equity method investments 1,750 2,624 Equity securities (without a readily determinable fair value) 1 1,864 1,776 of which at net asset value 122 111 of which at measurement alternative 353 357 of which at fair value 1,342 1,278 of which at cost less impairment 47 30 Real estate held-for-investment 2 52 59 Life finance instruments 3 877 920 Total other investments 4,543 5,379 1 Includes private equity, hedge funds and restricted stock investments as well as certain investments in non-marketable mutual funds for which the Bank has neither significant influence nor control over the investee. 2 As of the end of 6M21 and 2020, real estate held for investment included foreclosed or repossessed real estate of CHF 10 million and CHF 16 million, respectively, of which CHF 8 million and CHF 13 million, respectively, were related to residential real estate. 3 Includes single premium immediate annuity contracts.
Impairments and adjustments on equity securities at measurement alternative	Equity securities at measurement alternative – impairments and adjustments in / end of 6M21 Cumulative 6M20 Impairments and adjustments (CHF million) Impairments and downward adjustments (5) (30) (3) Upward adjustments 0 137 137

Loans, allowance for loan los_2

Loans, allowance for loan losses and credit quality (Tables)	6 Months Ended
	Jun. 30, 2021
Loans	Loans end of 2Q21 1Q21 4Q20 Loans (CHF million) Mortgages 112,223 111,678 111,270 Loans collateralized by securities 54,573 56,281 51,789 Consumer finance 6,567 5,889 4,888 Consumer 173,363 173,848 167,947 Real estate 29,464 30,320 29,045 Commercial and industrial loans 73,923 76,528 74,097 Financial institutions 21,016 21,353 19,072 Governments and public institutions 3,584 3,770 3,378 Corporate & institutional 127,987 131,971 125,592 Gross loans 301,350 305,819 293,539 of which held at amortized cost 290,249 293,992 282,131 of which held at fair value 11,101 11,827 11,408 Net (unearned income)/deferred expenses (94) (104) (95) Allowance for credit losses (1,412) (1,527) (1,536) Net loans 299,844 304,188 291,908 Gross loans by location (CHF million) Switzerland 170,902 171,126 168,589 Foreign 130,448 134,693 124,950 Gross loans 301,350 305,819 293,539 Impaired loan portfolio (CHF million) Non-performing loans 1,896 1,809 1,666 Non-interest-earning loans 383 380 375 Non-accrual loans 2,279 2,189 2,041 Restructured loans 471 472 313 Potential problem loans 406 512 843 Other impaired loans 877 984 1,156 Gross impaired loans 1 3,156 3,173 3,197 1 As of the end of 2Q21, 1Q21 and 4Q20, CHF 181 million, CHF 176 million and CHF 180 million, respectively, were related to consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process.
Bank
Loans	Loans end of 6M21 2020 Loans (CHF million) Mortgages 112,223 111,270 Loans collateralized by securities 54,573 51,789 Consumer finance 6,567 4,888 Consumer 173,363 167,947 Real estate 29,464 29,045 Commercial and industrial loans 74,570 74,700 Financial institutions 28,683 26,901 Governments and public institutions 3,584 3,378 Corporate & institutional 136,301 134,024 Gross loans 309,664 301,971 of which held at amortized cost 298,563 290,563 of which held at fair value 11,101 11,408 Net (unearned income)/deferred expenses (94) (95) Allowance for credit losses (1,411) (1,535) Net loans 308,159 300,341 Gross loans by location Switzerland 178,458 176,312 Foreign 131,206 125,659 Gross loans 309,664 301,971 Impaired loans Non-performing loans 1,896 1,666 Non-interest-earning loans 371 363 Non-accrual loans 2,267 2,029 Restructured loans 471 313 Potential problem loans 406 843 Other impaired loans 877 1,156 Gross impaired loans 1 3,144 3,185 1 As of the end of 6M21 and 2020, CHF 181 million and CHF 180 million, respectively, were related to consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process.

CECL - Financial instruments _2

CECL - Financial instruments measured at amortized cost and credit losses (Tables)	6 Months Ended
	Jun. 30, 2021
Financial instruments measured at amortized costs	Overview of financial instruments measured at amortized cost – by balance sheet position 2Q21 4Q20 1 Allowance Net 1 Allowance Net CHF million Cash and due from banks 146,217 0 146,217 138,593 (6) 138,587 Interest-bearing deposits with banks 1,313 2 0 1,313 1,303 4 (5) 1,298 Securities purchased under resale agreements and securities borrowing transactions 25,180 2 0 25,180 21,139 0 21,139 Loans 290,155 2,3 (1,412) 288,743 282,036 4,5 (1,536) 280,500 Brokerage receivables 37,501 2 (4,429) 33,072 35,942 4 (1) 35,941 Other assets 14,147 (41) 14,106 15,394 (43) 15,351 Total 514,513 (5,882) 508,631 494,407 (1,591) 492,816 1 Net of unearned income/deferred expenses, as applicable. 2 Excludes accrued interest for credit losses in the total amount of CHF 380 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 1 million to securities purchased under resale agreements and securities borrowing transactions, CHF 363 million to loans and CHF 15 million to brokerage receivables. These accrued interest balances are reported in other assets. 3 Includes endangered interest of CHF 89 million on non-accrual loans which are reported as part of the loans' amortized cost balance. 4 Excludes accrued interest for credit losses in the total amount of CHF 351 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 334 million to loans and CHF 16 million to brokerage receivables. These accrued interest balances are reported in other assets. 5 Includes endangered interest of CHF 88 million on non-accrual loans which are reported as part of the loans' amortized cost balance.
Allowance for credit losses - loans held at amortized cost	Allowance for credit losses – loans held at amortized cost 2Q21 1Q21 2Q20 Corporate & Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 329 1,198 1,527 318 1,218 1,536 349 1,082 1,431 Current-period provision for expected credit losses 31 (44) (13) 12 (35) (23) 62 218 280 of which provisions for interest 1 7 8 15 1 0 1 16 0 16 Gross write-offs (13) (77) (90) (14) (24) (38) (12) (24) (36) Recoveries 2 0 2 2 0 2 2 1 3 Net write-offs (11) (77) (88) (12) (24) (36) (10) (23) (33) Foreign currency translation impact and other adjustments, net (4) (10) (14) 11 39 50 (2) (7) (9) Balance at end of period 345 1,067 1,412 329 1,198 1,527 399 1,270 1,669 of which individually evaluated 255 614 869 240 627 867 313 586 899 of which collectively evaluated 90 453 543 89 571 660 86 684 770 6M21 6M20 Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 318 1,218 1,536 241 808 1,049 Current-period provision for expected credit losses 43 (79) (36) 183 533 716 of which provisions for interest 1 8 8 16 21 4 25 Gross write-offs (27) (101) (128) (24) (59) (83) Recoveries 4 0 4 5 2 7 Net write-offs (23) (101) (124) (19) (57) (76) Foreign currency translation impact and other adjustments, net 7 29 36 (6) (14) (20) Balance at end of period 345 1,067 1,412 399 1,270 1,669 1 Represents the current-period net provision for accrued interest on non-accrual loans and lease financing transactions which is recognized as a reversal of interest income.
Purchases, reclassifications and sales - loans held at amortized cost	Purchases, reclassifications and sales – loans held at amortized cost 2Q21 1Q21 2Q20 Corporate & Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 12 981 993 5 988 993 21 643 664 Reclassifications from loans held-for-sale 2 0 0 0 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 1,652 1,652 0 468 468 0 528 528 Sales 3 0 1,633 1,633 0 374 374 0 558 558 6M21 6M20 Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 17 1,969 1,986 21 1,328 1,349 Reclassifications from loans held-for-sale 2 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 2,120 2,120 0 988 988 Sales 3 0 2,007 2,007 0 980 980 1 Includes drawdowns under purchased loan commitments. 2 Includes loans previously reclassified to held-for-sale that were not sold and were reclassified back to loans held-to-maturity. 3 All loans held at amortized cost which are sold are reclassified to loans held-for-sale on or prior to the date of the sale.
Allowance for Credit Losses on Other Financing Instruments [Table Text Block]	Allowance for credit losses – other financial assets held at amortized cost 2Q21 1Q21 2Q20 6M21 6M20 CHF million Balance at beginning of period 4,488 55 52 55 45 Current-period provision for expected credit losses 56 4,434 21 4,490 36 Gross write-offs (4) 0 (1) (4) (9) Recoveries 0 0 1 0 1 Net write-offs (4) 0 0 (4) (8) Foreign currency translation impact and other adjustments, net (70) (1) (3) (71) (3) Balance at end of period 4,470 4,488 70 4,470 70 of which individually evaluated 4,450 4,449 20 4,450 20 of which collectively evaluated 20 39 50 20 50
Loans held at amortized cost by internal counterparty rating	Consumer loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Mortgages 2021 / 2020 13,021 1,153 6 14,180 18,765 1,664 3 20,432 2020 / 2019 17,518 1,701 17 19,236 14,072 1,511 26 15,609 2019 / 2018 12,435 1,554 50 14,039 10,242 932 58 11,232 2018 / 2017 8,711 1,031 80 9,822 7,087 857 44 7,988 2017 / 2016 5,992 821 126 6,939 10,951 914 76 11,941 Prior years 43,362 3,091 342 46,795 39,918 2,854 216 42,988 Total term loans 101,039 9,351 621 111,011 101,035 8,732 423 110,190 Revolving loans 319 893 0 1,212 528 548 4 1,080 Total 101,358 10,244 621 112,223 101,563 9,280 427 111,270 Loans collateralized by securities 2021 / 2020 2,061 371 0 2,432 1,682 1,547 149 3,378 2020 / 2019 1,273 1,170 0 2,443 1,019 324 0 1,343 2019 / 2018 562 210 0 772 499 64 0 563 2018 / 2017 49 25 113 187 61 41 0 102 2017 / 2016 96 15 0 111 200 127 0 327 Prior years 1,135 697 0 1,832 563 622 0 1,185 Total term loans 5,176 2,488 113 7,777 4,024 2,725 149 6,898 Revolving loans 1 43,499 3,154 143 46,796 41,749 3,038 104 44,891 Total 48,675 5,642 256 54,573 45,773 5,763 253 51,789 Consumer finance 2021 / 2020 1,494 737 1 2,232 1,297 903 5 2,205 2020 / 2019 733 548 10 1,291 519 505 22 1,046 2019 / 2018 450 413 19 882 279 237 23 539 2018 / 2017 419 221 18 658 81 154 17 252 2017 / 2016 50 116 15 181 16 57 10 83 Prior years 397 107 44 548 48 92 41 181 Total term loans 3,543 2,142 107 5,792 2,240 1,948 118 4,306 Revolving loans 493 75 90 658 328 88 81 497 Total 4,036 2,217 197 6,450 2,568 2,036 199 4,803 Consumer – total 2021 / 2020 16,576 2,261 7 18,844 21,744 4,114 157 26,015 2020 / 2019 19,524 3,419 27 22,970 15,610 2,340 48 17,998 2019 / 2018 13,447 2,177 69 15,693 11,020 1,233 81 12,334 2018 / 2017 9,179 1,277 211 10,667 7,229 1,052 61 8,342 2017 / 2016 6,138 952 141 7,231 11,167 1,098 86 12,351 Prior years 44,894 3,895 386 49,175 40,529 3,568 257 44,354 Total term loans 109,758 13,981 841 124,580 107,299 13,405 690 121,394 Revolving loans 44,311 4,122 233 48,666 42,605 3,674 189 46,468 Total 154,069 18,103 1,074 173,246 149,904 17,079 879 167,862 1 Lombard loans are generally classified as revolving loans. Corporate & institutional loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Real estate 2021 / 2020 5,254 2,724 2 7,980 6,054 2,792 106 8,952 2020 / 2019 4,614 2,443 6 7,063 2,902 1,611 0 4,513 2019 / 2018 2,429 1,129 2 3,560 1,849 1,133 24 3,006 2018 / 2017 1,350 661 1 2,012 1,033 346 72 1,451 2017 / 2016 778 178 2 958 1,591 285 25 1,901 Prior years 4,710 888 31 5,629 5,982 1,105 33 7,120 Total term loans 19,135 8,023 44 27,202 19,411 7,272 260 26,943 Revolving loans 884 338 138 1,360 1,027 172 69 1,268 Total 20,019 8,361 182 28,562 20,438 7,444 329 28,211 Commercial and industrial loans 2021 / 2020 5,353 8,965 94 14,412 7,724 11,621 310 19,655 2020 / 2019 4,225 6,802 108 11,135 3,851 6,411 133 10,395 2019 / 2018 3,177 5,027 157 8,361 1,781 4,321 247 6,349 2018 / 2017 1,309 3,403 170 4,882 964 1,981 60 3,005 2017 / 2016 831 1,480 37 2,348 809 1,248 22 2,079 Prior years 2,666 3,810 120 6,596 2,830 3,837 128 6,795 Total term loans 17,561 29,487 686 47,734 17,959 29,419 900 48,278 Revolving loans 14,311 8,278 475 23,064 12,913 8,908 464 22,285 Total 31,872 37,765 1,161 70,798 30,872 38,327 1,364 70,563 Financial institutions 2021 / 2020 2,829 1,055 40 3,924 3,386 697 43 4,126 2020 / 2019 2,249 271 44 2,564 1,973 132 39 2,144 2019 / 2018 745 142 1 888 960 432 9 1,401 2018 / 2017 684 377 9 1,070 97 92 0 189 2017 / 2016 69 38 0 107 37 102 20 159 Prior years 254 136 15 405 288 38 2 328 Total term loans 6,830 2,019 109 8,958 6,741 1,493 113 8,347 Revolving loans 7,093 364 1 7,458 5,718 419 1 6,138 Total 13,923 2,383 110 16,416 12,459 1,912 114 14,485 Governments and public institutions 2021 / 2020 427 38 0 465 174 33 0 207 2020 / 2019 178 58 0 236 135 20 10 165 2019 / 2018 99 20 20 139 80 0 0 80 2018 / 2017 57 11 0 68 35 0 0 35 2017 / 2016 30 0 0 30 74 1 0 75 Prior years 252 22 0 274 388 41 0 429 Total term loans 1,043 149 20 1,212 886 95 10 991 Revolving loans 15 0 0 15 19 0 0 19 Total 1,058 149 20 1,227 905 95 10 1,010 Corporate & institutional – total 2021 / 2020 13,863 12,782 136 26,781 17,338 15,143 459 32,940 2020 / 2019 11,266 9,574 158 20,998 8,861 8,174 182 17,217 2019 / 2018 6,450 6,318 180 12,948 4,670 5,886 280 10,836 2018 / 2017 3,400 4,452 180 8,032 2,129 2,419 132 4,680 2017 / 2016 1,708 1,696 39 3,443 2,511 1,636 67 4,214 Prior years 7,882 4,856 166 12,904 9,488 5,021 163 14,672 Total term loans 44,569 39,678 859 85,106 44,997 38,279 1,283 84,559 Revolving loans 22,303 8,980 614 31,897 19,677 9,499 534 29,710 Total 66,872 48,658 1,473 117,003 64,674 47,778 1,817 114,269 Total loans held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Loans held at amortized cost – total 2021 / 2020 30,439 15,043 143 45,625 39,082 19,257 616 58,955 2020 / 2019 30,790 12,993 185 43,968 24,471 10,514 230 35,215 2019 / 2018 19,897 8,495 249 28,641 15,690 7,119 361 23,170 2018 / 2017 12,579 5,729 391 18,699 9,358 3,471 193 13,022 2017 / 2016 7,846 2,648 180 10,674 13,678 2,734 153 16,565 Prior years 52,776 8,751 552 62,079 50,017 8,589 420 59,026 Total term loans 154,327 53,659 1,700 209,686 152,296 51,684 1,973 205,953 Revolving loans 66,614 13,102 847 80,563 62,282 13,173 723 76,178 Total 220,941 66,761 2,547 290,249 1 214,578 64,857 2,696 282,131 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 2Q21 and 4Q20, respectively.
Other Financial Assets Credit Quality Indicators [Table Text Block]	Other financial assets held at amortized cost by internal counterparty rating 2Q21 4Q20 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total CHF million Other financial assets held at amortized cost 2019 / 2018 0 0 0 0 0 70 0 70 2018 / 2017 0 70 0 70 0 2 0 2 2017 / 2016 0 1 0 1 0 4 0 4 Prior years 0 3 0 3 0 0 0 0 Total term positions 0 74 0 74 0 76 0 76 Revolving positions 0 814 0 814 0 934 0 934 Total 0 888 0 888 0 1,010 0 1,010 Includes primarily mortgage servicing advances and failed purchases.
Financing Receivable, Nonaccrual [Table Text Block]	Non-accrual loans held at amortized cost 6M21 6M20 Amortized Amortized CHF million Mortgages 418 615 2 167 337 380 1 20 Loans collateralized by securities 105 298 3 0 122 377 3 75 Consumer finance 201 200 1 1 168 204 0 4 Consumer 724 1,113 6 168 627 961 4 99 Real estate 324 293 6 46 155 270 3 37 Commercial and industrial loans 925 790 8 30 682 978 21 41 Financial institutions 68 63 0 0 46 65 0 8 Governments and public institutions 0 20 0 0 0 0 0 0 Corporate & institutional 1,317 1,166 14 76 883 1,313 24 86 Total loans held at amortized cost 2,041 2,279 20 244 1,510 2,274 28 185
Past Due Financing Receivables [Table Text Block]	Loans held at amortized cost – past due Current Past due Up to 31–60 61–90 More than 2Q21 (CHF million) Mortgages 111,521 167 45 27 463 702 112,223 Loans collateralized by securities 54,411 5 38 1 118 162 54,573 Consumer finance 5,750 476 15 48 161 700 6,450 Consumer 171,682 648 98 76 742 1,564 173,246 Real estate 28,161 91 122 4 184 401 28,562 Commercial and industrial loans 69,391 388 236 49 734 1,407 70,798 Financial institutions 16,278 72 0 0 66 138 16,416 Governments and public institutions 1,192 15 0 0 20 35 1,227 Corporate & institutional 115,022 566 358 53 1,004 1,981 117,003 Total loans held at amortized cost 286,704 1,214 456 129 1,746 3,545 290,249 1 4Q20 (CHF million) Mortgages 110,747 63 68 34 358 523 111,270 Loans collateralized by securities 51,668 17 0 0 104 121 51,789 Consumer finance 4,361 156 68 47 171 442 4,803 Consumer 166,776 236 136 81 633 1,086 167,862 Real estate 28,070 50 3 11 77 141 28,211 Commercial and industrial loans 69,060 630 54 137 682 1,503 70,563 Financial institutions 14,311 41 15 72 46 174 14,485 Governments and public institutions 969 37 4 0 0 41 1,010 Corporate & institutional 112,410 758 76 220 805 1,859 114,269 Total loans held at amortized cost 279,186 994 212 301 1,438 2,945 282,131 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 2Q21 and 4Q20, respectively.
Restructured financing receivables held at amortized cost	Restructured financing receivables held at amortized cost 2Q21 1Q21 2Q20 Recorded Recorded Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 0 0 0 Commercial and industrial loans 4 19 15 10 371 367 1 2 1 Financial institutions 0 0 0 1 44 44 0 0 0 Total loans 5 21 17 11 415 411 3 118 117 6M21 6M20 Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 Commercial and industrial loans 14 390 382 7 32 15 Financial institutions 1 44 44 0 0 0 Total loans 16 436 428 9 148 131
Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring	Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring 2Q21 1Q21 2Q20 Number of Recorded Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 0 0 Commercial and industrial loans 0 0 0 0 3 12 Total loans 3 156 0 0 3 12 Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring (continued) 6M21 6M20 Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 Commercial and industrial loans 0 0 3 12 Total loans 3 156 3 12
Bank
Financial instruments measured at amortized costs	Overview of financial instruments measured at amortized cost – by balance sheet position 6M21 2020 1 Allowance Net 1 Allowance Net Cash and due from banks 145,226 0 145,226 137,683 (1) 137,682 Interest-bearing deposits with banks 1,245 2 0 1,245 1,235 4 (5) 1,230 Securities purchased under resale agreements and securities borrowing transactions 25,180 2 0 25,180 21,139 0 21,139 Loans 298,469 2,3 (1,411) 297,058 290,468 4,5 (1,535) 288,933 Brokerage receivables 37,503 2 (4,429) 33,074 35,944 4 (1) 35,943 Other assets 14,245 (39) 14,206 15,540 (41) 15,499 Total 521,868 (5,879) 515,989 502,009 (1,583) 500,426 1 Net of unearned income/deferred expenses, as applicable. 2 Excludes accrued interest for credit losses in the total amount of CHF 380 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 1 million to securities purchased under resale agreements and securities borrowing transactions, CHF 363 million to loans and CHF 15 million to brokerage receivables. These accrued interest balances are reported in other assets. 3 Includes endangered interest of CHF 88 million on non-accrual loans which are reported as part of the loans' amortized cost balance. 4 Excludes accrued interest for credit losses in the total amount of CHF 351 million, with no related allowance for credit losses. Of the accrued interest balance, CHF 1 million relates to interest-bearing deposits with banks, CHF 334 million to loans and CHF 16 million to brokerage receivables. These accrued interest balances are reported in other assets. 5 Includes endangered interest of CHF 87 million on non-accrual loans which are reported as part of the loans' amortized cost balance.
Allowance for credit losses - loans held at amortized cost	Allowance for credit losses – loans held at amortized cost 6M21 6M20 Corporate & Corporate & Allowance for credit losses (CHF million) Balance at beginning of period 318 1,217 1,535 241 807 1,048 Current-period provision for expected credit losses 43 (79) (36) 183 533 716 of which provisions for interest 1 8 8 16 21 4 25 Gross write-offs (27) (101) (128) (24) (59) (83) Recoveries 4 0 4 5 2 7 Net write-offs (23) (101) (124) (19) (57) (76) Foreign currency translation impact and other adjustments, net 7 29 36 (6) (14) (20) Balance at end of period 345 1,066 1,411 399 1,269 1,668 of which individually evaluated 255 613 868 313 585 898 of which collectively evaluated 90 453 543 86 684 770 1 Represents the current-period net provision for accrued interest on non-accrual loans and lease financing transactions which is recognized as a reversal of interest income.
Purchases, reclassifications and sales - loans held at amortized cost	Purchases, reclassifications and sales – loans held at amortized cost 6M21 6M20 Corporate & Corporate & Loans held at amortized cost (CHF million) Purchases 1 17 1,969 1,986 21 1,328 1,349 Reclassifications from loans held-for-sale 2 0 13 13 0 4 4 Reclassifications to loans held-for-sale 3 0 2,120 2,120 0 988 988 Sales 3 0 2,007 2,007 0 980 980 1 Includes drawdowns under purchased loan commitments. 2 Includes loans previously reclassified to held-for-sale that were not sold and were reclassified back to loans held-to-maturity. 3 All loans held at amortized cost which are sold are reclassified to loans held-for-sale on or prior to the date of the sale. Other financial assets
Allowance for Credit Losses on Other Financing Instruments [Table Text Block]	Allowance for credit losses – other financial assets held at amortized cost 6M21 6M20 CHF million Balance at beginning of period 48 43 Current-period provision for expected credit losses 4,494 32 Gross write-offs (4) (9) Recoveries 0 1 Net write-offs (4) (8) Foreign currency translation impact and other adjustments, net (70) (4) Balance at end of period 4,468 63 of which individually evaluated 4,448 19 of which collectively evaluated 20 44
Loans held at amortized cost by internal counterparty rating	Consumer loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Mortgages 2021 / 2020 13,021 1,153 6 14,180 18,765 1,664 3 20,432 2020 / 2019 17,518 1,701 17 19,236 14,072 1,511 26 15,609 2019 / 2018 12,435 1,554 50 14,039 10,242 932 58 11,232 2018 / 2017 8,711 1,031 80 9,822 7,087 857 44 7,988 2017 / 2016 5,992 821 126 6,939 10,951 914 76 11,941 Prior years 43,362 3,091 342 46,795 39,918 2,854 216 42,988 Total term loans 101,039 9,351 621 111,011 101,035 8,732 423 110,190 Revolving loans 319 893 0 1,212 528 548 4 1,080 Total 101,358 10,244 621 112,223 101,563 9,280 427 111,270 Loans collateralized by securities 2021 / 2020 2,061 371 0 2,432 1,682 1,547 149 3,378 2020 / 2019 1,273 1,170 0 2,443 1,019 324 0 1,343 2019 / 2018 562 210 0 772 499 64 0 563 2018 / 2017 49 25 113 187 61 41 0 102 2017 / 2016 96 15 0 111 200 127 0 327 Prior years 1,135 697 0 1,832 563 622 0 1,185 Total term loans 5,176 2,488 113 7,777 4,024 2,725 149 6,898 Revolving loans 1 43,499 3,154 143 46,796 41,749 3,038 104 44,891 Total 48,675 5,642 256 54,573 45,773 5,763 253 51,789 Consumer finance 2021 / 2020 1,494 737 1 2,232 1,297 903 5 2,205 2020 / 2019 733 548 10 1,291 519 505 22 1,046 2019 / 2018 450 413 19 882 279 237 23 539 2018 / 2017 419 221 18 658 81 154 17 252 2017 / 2016 50 116 15 181 16 57 10 83 Prior years 397 107 44 548 48 92 41 181 Total term loans 3,543 2,142 107 5,792 2,240 1,948 118 4,306 Revolving loans 493 75 90 658 328 88 81 497 Total 4,036 2,217 197 6,450 2,568 2,036 199 4,803 Consumer – total 2021 / 2020 16,576 2,261 7 18,844 21,744 4,114 157 26,015 2020 / 2019 19,524 3,419 27 22,970 15,610 2,340 48 17,998 2019 / 2018 13,447 2,177 69 15,693 11,020 1,233 81 12,334 2018 / 2017 9,179 1,277 211 10,667 7,229 1,052 61 8,342 2017 / 2016 6,138 952 141 7,231 11,167 1,098 86 12,351 Prior years 44,894 3,895 386 49,175 40,529 3,568 257 44,354 Total term loans 109,758 13,981 841 124,580 107,299 13,405 690 121,394 Revolving loans 44,311 4,122 233 48,666 42,605 3,674 189 46,468 Total 154,069 18,103 1,074 173,246 149,904 17,079 879 167,862 1 Lombard loans are generally classified as revolving loans. Corporate & institutional loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Real estate 2021 / 2020 5,254 2,724 2 7,980 6,054 2,792 106 8,952 2020 / 2019 4,614 2,443 6 7,063 2,902 1,611 0 4,513 2019 / 2018 2,429 1,129 2 3,560 1,849 1,133 24 3,006 2018 / 2017 1,350 661 1 2,012 1,033 346 72 1,451 2017 / 2016 778 178 2 958 1,591 285 25 1,901 Prior years 4,710 888 31 5,629 5,982 1,105 33 7,120 Total term loans 19,135 8,023 44 27,202 19,411 7,272 260 26,943 Revolving loans 884 338 138 1,360 1,027 172 69 1,268 Total 20,019 8,361 182 28,562 20,438 7,444 329 28,211 Commercial and industrial loans 2021 / 2020 5,353 8,965 94 14,412 7,724 11,621 310 19,655 2020 / 2019 4,225 6,802 108 11,135 3,851 6,411 133 10,395 2019 / 2018 3,177 5,027 157 8,361 1,781 4,321 247 6,349 2018 / 2017 1,309 3,403 170 4,882 964 1,981 60 3,005 2017 / 2016 831 1,480 37 2,348 809 1,248 22 2,079 Prior years 2,666 3,810 108 6,584 2,830 3,837 116 6,783 Total term loans 17,561 29,487 674 47,722 17,959 29,419 888 48,266 Revolving loans 14,311 8,278 475 23,064 12,913 8,908 464 22,285 Total 31,872 37,765 1,149 70,786 30,872 38,327 1,352 70,551 Financial institutions 2021 / 2020 2,829 1,055 40 3,924 3,386 697 43 4,126 2020 / 2019 2,249 271 44 2,564 1,973 132 39 2,144 2019 / 2018 745 142 1 888 960 432 9 1,401 2018 / 2017 684 377 9 1,070 97 92 0 189 2017 / 2016 69 38 0 107 37 102 20 159 Prior years 254 136 15 405 288 38 2 328 Total term loans 6,830 2,019 109 8,958 6,741 1,493 113 8,347 Revolving loans 7,093 364 1 7,458 5,718 419 1 6,138 Total 13,923 2,383 110 16,416 12,459 1,912 114 14,485 Governments and public institutions 2021 / 2020 427 38 0 465 174 33 0 207 2020 / 2019 178 58 0 236 135 20 10 165 2019 / 2018 99 20 20 139 80 0 0 80 2018 / 2017 57 11 0 68 35 0 0 35 2017 / 2016 30 0 0 30 74 1 0 75 Prior years 252 22 0 274 388 41 0 429 Total term loans 1,043 149 20 1,212 886 95 10 991 Revolving loans 15 0 0 15 19 0 0 19 Total 1,058 149 20 1,227 905 95 10 1,010 Corporate & institutional – total 2021 / 2020 13,863 12,782 136 26,781 17,338 15,143 459 32,940 2020 / 2019 11,266 9,574 158 20,998 8,861 8,174 182 17,217 2019 / 2018 6,450 6,318 180 12,948 4,670 5,886 280 10,836 2018 / 2017 3,400 4,452 180 8,032 2,129 2,419 132 4,680 2017 / 2016 1,708 1,696 39 3,443 2,511 1,636 67 4,214 Prior years 7,882 4,856 154 12,892 9,488 5,021 151 14,660 Total term loans 44,569 39,678 847 85,094 44,997 38,279 1,271 84,547 Revolving loans 22,303 8,980 614 31,897 19,677 9,499 534 29,710 Total 66,872 48,658 1,461 116,991 64,674 47,778 1,805 114,257 Total loans held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total Loans held at amortized cost – total 2021 / 2020 30,439 15,043 143 45,625 39,082 19,257 616 58,955 2020 / 2019 30,790 12,993 185 43,968 24,471 10,514 230 35,215 2019 / 2018 19,897 8,495 249 28,641 15,690 7,119 361 23,170 2018 / 2017 12,579 5,729 391 18,699 9,358 3,471 193 13,022 2017 / 2016 7,846 2,648 180 10,674 13,678 2,734 153 16,565 Prior years 52,776 8,751 540 62,067 50,017 8,589 408 59,014 Total term loans 154,327 53,659 1,688 209,674 152,296 51,684 1,961 205,941 Revolving loans 66,614 13,102 847 80,563 62,282 13,173 723 76,178 Total loans to third parties 220,941 66,761 2,535 290,237 214,578 64,857 2,684 282,119 Total loans to entities under common control 8,324 2 0 8,326 8,444 0 0 8,444 Total 229,265 66,763 2,535 298,563 223,022 64,857 2,684 290,563 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 6M21 and 2020, respectively.
Other Financial Assets Credit Quality Indicators [Table Text Block]	Other financial assets held at amortized cost by internal counterparty rating 6M21 2020 Investment Non-investment Investment Non-investment end of AAA to BBB BB to C D Total AAA to BBB BB to C D Total 6M21 (CHF million) Other financial assets held at amortized cost 2019 0 0 0 0 0 70 0 70 2018 0 70 0 70 0 2 0 2 2017 0 1 0 1 0 4 0 4 Prior years 0 3 0 3 0 0 0 0 Total term positions 0 74 0 74 0 76 0 76 Revolving positions 0 814 0 814 0 934 0 934 Total 0 888 0 888 0 1,010 0 1,010 Includes primarily mortgage servicing advances and failed purchases.
Financing Receivable, Nonaccrual [Table Text Block]	Non-accrual loans held at amortized cost 6M21 6M20 Amortized Amortized CHF million Mortgages 418 615 2 167 337 380 1 20 Loans collateralized by securities 105 298 3 0 122 377 3 75 Consumer finance 201 200 1 1 168 204 0 4 Consumer 724 1,113 6 168 627 961 4 99 Real estate 324 293 6 46 155 270 3 37 Commercial and industrial loans 913 778 8 30 670 966 21 41 Financial institutions 68 63 0 0 46 65 0 8 Governments and public institutions 0 20 0 0 0 0 0 0 Corporate & institutional 1,305 1,154 14 76 871 1,301 24 86 Total loans held at amortized cost 2,029 2,267 20 244 1,498 2,262 28 185
Past Due Financing Receivables [Table Text Block]	Loans held at amortized cost – past due Current Past due Up to 31–60 61–90 More than 6M21 (CHF million) Mortgages 111,521 167 45 27 463 702 112,223 Loans collateralized by securities 54,411 5 38 1 118 162 54,573 Consumer finance 5,750 476 15 48 161 700 6,450 Consumer 171,682 648 98 76 742 1,564 173,246 Real estate 28,161 91 122 4 184 401 28,562 Commercial and industrial loans 69,390 388 236 49 723 1,396 70,786 Financial institutions 16,278 72 0 0 66 138 16,416 Governments and public institutions 1,192 15 0 0 20 35 1,227 Corporate & institutional 115,021 566 358 53 993 1,970 116,991 Total loans to third parties 286,703 1,214 456 129 1,735 3,534 290,237 Total loans to entities under common control 8,326 0 0 0 0 0 8,326 Total loans held at amortized cost 295,029 1,214 456 129 1,735 3,534 298,563 1 2020 (CHF million) Mortgages 110,747 63 68 34 358 523 111,270 Loans collateralized by securities 51,668 17 0 0 104 121 51,789 Consumer finance 4,361 156 68 47 171 442 4,803 Consumer 166,776 236 136 81 633 1,086 167,862 Real estate 28,070 50 3 11 77 141 28,211 Commercial and industrial loans 69,060 630 54 137 670 1,491 70,551 Financial institutions 14,311 41 15 72 46 174 14,485 Governments and public institutions 969 37 4 0 0 41 1,010 Corporate & institutional 112,410 758 76 220 793 1,847 114,257 Total loans to third parties 279,186 994 212 301 1,426 2,933 282,119 1 Total loans to entities under common control 8,444 0 0 0 0 0 8,444 Total loans held at amortized cost 287,630 994 212 301 1,426 2,933 290,563 1 1 Excludes accrued interest on loans held at amortized cost of CHF 363 million and CHF 334 million as of the end of 6M21 and 2020, respectively.
Restructured financing receivables held at amortized cost	Restructured financing receivables held at amortized cost 6M21 6M20 Recorded Recorded Recorded Recorded CHF million, except where indicated Loans collateralized by securities 0 0 0 2 116 116 Real estate 1 2 2 0 0 0 Commercial and industrial loans 14 390 382 7 32 15 Financial institutions 1 44 44 0 0 0 Total loans 16 436 428 9 148 131
Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring	Restructured financing receivables held at amortized cost that defaulted within 12 months from restructuring 6M21 6M20 Number of Recorded Number of Recorded CHF million, except where indicated Loans collateralized by securities 3 156 0 0 Commercial and industrial loans 0 0 3 12 Total loans 3 156 3 12

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2021
Goodwill	Swiss International Credit 1 Gross amount of goodwill (CHF million) Balance at beginning of period 595 291 1,063 1,140 5,434 8,535 Foreign currency translation impact (5) (2) (11) (18) (20) (56) Balance at end of period 590 289 1,052 1,122 5,414 8,479 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 590 289 1,052 1,122 1,535 4,588 6M21 Gross amount of goodwill (CHF million) Balance at beginning of period 575 284 1,021 1,068 5,357 8,317 Foreign currency translation impact 15 5 31 54 57 162 Balance at end of period 590 289 1,052 1,122 5,414 8,479 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 590 289 1,052 1,122 1,535 4,588 1 Gross amount of goodwill and accumulated impairment include CHF 12 million related to legacy business transferred to the former Strategic Resolution Unit in 4Q15 and fully written off at the time of transfer, in addition to the divisions disclosed.
Bank
Goodwill	Swiss International 1 Gross amount of goodwill (CHF million) Balance at beginning of period 557 276 1,005 1,062 4,734 7,646 Foreign currency translation impact 15 6 34 54 37 146 Balance at end of period 572 282 1,039 1,116 4,771 7,792 Accumulated impairment (CHF million) Balance at beginning of period 0 0 0 0 3,879 3,891 Balance at end of period 0 0 0 0 3,879 3,891 Net book value (CHF million) Net book value 572 282 1,039 1,116 892 3,901 1 Gross amount of goodwill and accumulated impairment include goodwill of CHF 12 million related to legacy business transferred to the former Strategic Resolution Unit in 4Q15 and fully written off at the time of transfer, in addition to the divisions disclosed.

Other assets and other liabil_2

Other assets and other liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Other assets and other liabilities	end of 2Q21 1Q21 4Q20 Other assets (CHF million) Cash collateral on derivative instruments 7,664 1 8,817 1 7,741 Cash collateral on non-derivative transactions 416 250 635 Derivative instruments used for hedging 457 295 131 Assets held-for-sale 8,169 13,193 7,077 of which loans 2 8,136 13,160 7,046 allowance for loans held-for-sale (51) (51) (48) of which real estate 3 31 27 27 of which long-lived assets 2 6 4 Premises, equipment and right-of-use assets 7,428 7,523 7,376 Assets held for separate accounts 107 107 102 Interest and fees receivable 4,155 4,838 4,255 Deferred tax assets 4,201 3,964 3,667 Prepaid expenses 693 688 448 of which cloud computing arrangement implementation costs 45 43 38 Failed purchases 1,793 1,595 1,451 Defined benefit pension and post-retirement plan assets 3,047 3,073 2,872 Other 4,041 4,559 3,882 Other assets 42,171 48,902 39,637 Other liabilities (CHF million) Cash collateral on derivative instruments 7,200 8,839 7,831 Cash collateral on non-derivative transactions 215 258 174 Derivative instruments used for hedging 12 39 45 Operating leases liabilities 2,652 2,740 2,759 Provisions 1,256 1,653 2,080 of which expected credit losses on off-balance sheet credit exposures 260 324 311 Restructuring liabilities 25 42 52 Liabilities held for separate accounts 107 107 102 Interest and fees payable 4,128 4,651 4,297 Current tax liabilities 622 569 555 Deferred tax liabilities 578 557 530 Failed sales 1,437 1,090 1,120 Defined benefit pension and post-retirement plan liabilities 414 425 410 Other 10,425 10,733 11,479 Other liabilities 29,071 31,703 31,434 1 As of the end of 1Q21, cash collateral on derivative instruments was net of an allowance for credit losses of CHF 4,394 million related to the failure of Archegos to meet its margin commitments; after the closeout of all derivatives including collateral in 2Q21, the remaining receivable balance and the related allowance for credit losses have been reclassified to brokerage receivables. 2 Included as of the end of 2Q21, 1Q21 and 4Q20 were CHF 363 million, CHF 471 million and CHF 262 million, respectively, in restricted loans, which represented collateral on secured borrowings. 3 As of the end of 2Q21, 1Q21 and 4Q20, real estate held-for-sale included foreclosed or repossessed real estate of CHF 8 million, CHF 8 million and CHF 8 million, respectively, of which CHF 8 million, CHF 8 million and CHF 8 million, respectively were related to residential real estate.
Bank
Other assets and other liabilities	end of 6M21 2020 Other assets (CHF million) Cash collateral on derivative instruments 7,664 7,741 Cash collateral on non-derivative transactions 416 635 Derivative instruments used for hedging 457 131 Assets held-for-sale 8,169 7,077 of which loans 1 8,136 7,046 allowance for loans held-for-sale (51) (48) of which real estate 2 31 27 of which long-lived assets 2 4 Premises, equipment and right-of-use assets 6,263 6,213 Assets held for separate accounts 107 102 Interest and fees receivable 4,225 4,397 Deferred tax assets 4,155 3,630 Prepaid expenses 570 367 of which cloud computing arrangement implementation costs 39 32 Failed purchases 1,793 1,451 Defined benefit pension and post-retirement plan assets 910 975 Other 4,050 3,855 Other assets 38,779 36,574 Other liabilities (CHF million) Cash collateral on derivative instruments 7,209 7,831 Cash collateral on non-derivative transactions 215 174 Derivative instruments used for hedging 12 45 Operating leases liabilities 1,896 1,981 Provisions 1,244 2,067 of which expected credit losses on off-balance sheet credit exposures 260 311 Restructuring liabilities 25 49 Liabilities held for separate accounts 107 102 Interest and fees payable 4,068 4,397 Current tax liabilities 612 542 Deferred tax liabilities 164 157 Failed sales 1,437 1,120 Defined benefit pension and post-retirement plan liabilities 406 403 Other 10,540 11,472 Other liabilities 27,935 30,340 1 Included as of the end of 6M21 and 2020 were CHF 363 million and CHF 262 million, respectively, in restricted loans, which represented collateral on secured borrowings. 2 As of the end of 6M21 and 2020, real estate held-for-sale included foreclosed or repossessed real estate of CHF 8 million and CHF 8 million, respectively, of which CHF 8 million and CHF 8 million, respectively, were related to residential real estate.

Long-term debt (Tables)

Long-term debt (Tables)	6 Months Ended
	Jun. 30, 2021
Long-term debt	Long-term debt end of 2Q21 1Q21 4Q20 Long-term debt (CHF million) Senior 143,874 141,689 133,056 Subordinated 25,034 27,196 26,285 Non-recourse liabilities from consolidated VIEs 1,319 1,568 1,746 Long-term debt 170,227 170,453 161,087 of which reported at fair value 69,436 72,312 70,976 of which structured notes 45,030 48,210 47,039
Schedule of Structured notes	Structured notes by product end of 2Q21 1Q21 4Q20 Structured notes by product (CHF million) Equity 29,473 32,230 29,907 Fixed income 12,465 12,705 13,882 Credit 2,700 2,882 2,881 Other 392 393 369 Total structured notes 45,030 48,210 47,039
Bank
Long-term debt	Long-term debt end of 6M21 2020 Long-term debt (CHF million) Senior 96,726 94,768 Subordinated 66,247 63,765 Non-recourse liabilities from consolidated VIEs 1,319 1,746 Long-term debt 164,292 160,279 of which reported at fair value 68,486 70,243 of which structured notes 45,030 47,039
Schedule of Structured notes	Structured notes by product end of 6M21 2020 Structured notes by product (CHF million) Equity 29,473 29,907 Fixed income 12,465 13,882 Credit 2,700 2,881 Other 392 369 Total structured notes 45,030 47,039

Accumulated other comprehensi_2

Accumulated other comprehensive income (Tables)	6 Months Ended
	Jun. 30, 2021
Accumulated other comprehensive income	Accumulated other comprehensive income/(loss) 1 Gains/ 2Q21 (CHF million) Balance at beginning of period 103 (15,534) 13 (3,662) 432 (2,019) (20,667) Increase/(decrease) (19) (471) 0 (89) 0 (514) (1,093) Reclassification adjustments, included in net income/(loss) (22) 0 0 78 (24) 31 63 Total increase/(decrease) (41) (471) 0 (11) (24) (483) (1,030) Balance at end of period 62 (16,005) 13 (3,673) 408 (2,502) (21,697) 1Q21 (CHF million) Balance at beginning of period 206 (17,528) 13 (3,727) 456 (2,570) (23,150) Increase/(decrease) (91) 1,994 0 (3) 0 505 2,405 Reclassification adjustments, included in net income/(loss) (12) 0 0 68 (24) 46 78 Total increase/(decrease) (103) 1,994 0 65 (24) 551 2,483 Balance at end of period 103 (15,534) 13 (3,662) 432 (2,019) (20,667) 2Q20 (CHF million) Balance at beginning of period 253 (15,064) 28 (3,617) 570 1,578 (16,252) Increase/(decrease) 13 (450) (47) 0 0 (2,680) (3,164) Reclassification adjustments, included in net income/(loss) 5 17 29 73 (34) 22 112 Total increase/(decrease) 18 (433) (18) 73 (34) (2,658) (3,052) Balance at end of period 271 (15,497) 10 (3,544) 536 (1,080) (19,304) 6M21 (CHF million) Balance at beginning of period 206 (17,528) 13 (3,727) 456 (2,570) (23,150) Increase/(decrease) (110) 1,523 0 (92) 0 (9) 1,312 Reclassification adjustments, included in net income/(loss) (34) 0 0 146 (48) 77 141 Total increase/(decrease) (144) 1,523 0 54 (48) 68 1,453 Balance at end of period 62 (16,005) 13 (3,673) 408 (2,502) (21,697) 6M20 (CHF million) Balance at beginning of period 28 (14,469) 30 (3,690) 604 (2,772) (20,269) Increase/(decrease) 168 (1,045) (52) 0 0 1,593 664 Reclassification adjustments, included in net income/(loss) 75 17 32 146 (68) 99 301 Total increase/(decrease) 243 (1,028) (20) 146 (68) 1,692 965 Balance at end of period 271 (15,497) 10 (3,544) 536 (1,080) (19,304) 1 No impairments on available-for-sale debt securities were recognized in net income/(loss) in 2Q21, 1Q21, 2Q20, 6M21 and 6M20.
Details on significant reclassification adjustments	Details of significant reclassification adjustments in 2Q21 1Q21 2Q20 6M21 6M20 Reclassification adjustments, included in net income/(loss) (CHF million) Actuarial gains/(losses) Amortization of recognized actuarial losses 1 95 83 89 178 179 Tax expense/(benefit) (17) (15) (16) (32) (33) Net of tax 78 68 73 146 146 Net prior service credit/(cost) Amortization of recognized prior service credit/(cost) 1 (29) (30) (41) (59) (83) Tax expense 5 6 7 11 15 Net of tax (24) (24) (34) (48) (68) 1 These components are included in the computation of total benefit costs. Refer to "Note 27 – Pension and other post-retirement benefits" for further information.
Additional share information	Additional share information 2Q21 1Q21 2Q20 6M21 6M20 Common shares issued Balance at beginning of period 2,447,747,720 2,447,747,720 2,556,011,720 2,447,747,720 2,556,011,720 Issuance of common shares 203,000,000 0 0 203,000,000 0 Balance at end of period 2,650,747,720 2,447,747,720 2,556,011,720 2,650,747,720 2,556,011,720 Treasury shares Balance at beginning of period (83,737,482) (41,602,841) (156,996,084) (41,602,841) (119,761,811) Sale of treasury shares 510,392,920 552,731,383 170,488,741 1,063,124,303 409,965,327 Repurchase of treasury shares (514,715,462) (599,319,336) (172,555,047) (1,114,034,798) (452,618,437) Issuance of common shares relating to mandatory convertible notes (203,000,000) 0 0 (203,000,000) 0 Conversion of mandatory convertible notes 106,805 0 0 106,805 0 Share-based compensation 51,473,883 4,453,312 44,650,431 55,927,195 48,002,962 Balance at end of period (239,479,336) (83,737,482) (114,411,959) (239,479,336) (114,411,959) Common shares outstanding Balance at end of period 2,411,268,384 1 2,364,010,238 2 2,441,599,761 2 2,411,268,384 1 2,441,599,761 2 1 At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 450,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,524,164 of these shares were reserved for capital instruments. 2 At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 653,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,193,477 of these shares were reserved for capital instruments.
Bank
Accumulated other comprehensive income	Accumulated other comprehensive income/(loss) Unrealized 1 Gains/ 6M21 (CHF million) Balance at beginning of period 205 (17,517) 13 (460) (11) (2,469) (20,239) Increase/(decrease) (109) 1,473 0 (85) (1) (5) 1,273 Reclassification adjustments, included in net income/(loss) (34) 0 0 0 1 77 44 Total increase/(decrease) (143) 1,473 0 (85) 0 72 1,317 Balance at end of period 62 (16,044) 13 (545) (11) (2,397) (18,922) 6M20 (CHF million) Balance at beginning of period 28 (14,560) 30 (417) (7) (2,620) (17,546) Increase/(decrease) 168 (1,015) (52) 0 0 1,515 616 Reclassification adjustments, included in net income/(loss) 75 17 32 7 0 99 230 Total increase/(decrease) 243 (998) (20) 7 0 1,614 846 Balance at end of period 271 (15,558) 10 (410) (7) (1,006) (16,700) 1 No impairments on available-for-sale debt securities were recognized in net income/(loss) in 6M21 and 6M20.
Details on significant reclassification adjustments	Details on significant reclassification adjustments in 6M21 6M20 Reclassification adjustments, included in net income/(loss) (CHF million) Cumulative translation adjustments Reclassification adjustments 0 17 Actuarial gains/(losses) Amortization of recognized actuarial losses 1 (2) 7 Tax expense/(benefit) 2 0 Net of tax 0 7 1 These components are included in the computation of total benefit costs. Refer to "Note 26 – Pension and other post-retirement benefits" for further information.

Offsetting of financial asset_2

Offsetting of financial assets and financial liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Offsetting of derivatives	Offsetting of derivatives 2Q21 4Q20 Derivative Derivative Derivative Derivative Gross derivatives subject to enforceable master netting agreements (CHF billion) OTC-cleared 5.1 3.7 6.1 4.6 OTC 52.1 48.6 68.2 65.7 Exchange-traded 0.1 0.1 0.5 0.6 Interest rate products 57.3 52.4 74.8 70.9 OTC-cleared 0.2 0.2 0.2 0.2 OTC 19.1 20.4 23.1 27.7 Foreign exchange products 19.3 20.6 23.3 27.9 OTC 9.3 14.1 10.7 15.1 Exchange-traded 23.2 22.1 19.9 20.4 Equity/index-related products 32.5 36.2 30.6 35.5 OTC-cleared 1.1 1.2 0.7 0.7 OTC 3.7 4.7 3.9 4.9 Credit derivatives 4.8 5.9 4.6 5.6 OTC 1.5 0.9 1.6 0.7 Exchange-traded 0.0 0.0 0.1 0.1 Other products 1 1.5 0.9 1.7 0.8 OTC-cleared 6.4 5.1 7.0 5.5 OTC 85.7 88.7 107.5 114.1 Exchange-traded 23.3 22.2 20.5 21.1 Total gross derivatives subject to enforceable master netting agreements 115.4 116.0 135.0 140.7 Offsetting (CHF billion) OTC-cleared (5.7) (5.0) (6.2) (5.4) OTC (74.6) (82.4) (94.4) (104.3) Exchange-traded (21.4) (21.5) (20.0) (20.3) Offsetting (101.7) (108.9) (120.6) (130.0) of which counterparty netting (87.7) (87.7) (103.2) (103.2) of which cash collateral netting (14.0) (21.2) (17.4) (26.8) Net derivatives presented in the consolidated balance sheets (CHF billion) OTC-cleared 0.7 0.1 0.8 0.1 OTC 11.1 6.3 13.1 9.8 Exchange-traded 1.9 0.7 0.5 0.8 Total net derivatives subject to enforceable master netting agreements 13.7 7.1 14.4 10.7 Total derivatives not subject to enforceable master netting agreements 2 10.8 5.2 11.2 6.8 Total net derivatives presented in the consolidated balance sheets 24.5 12.3 25.6 17.5 of which recorded in trading assets and trading liabilities 24.1 12.3 25.5 17.5 of which recorded in other assets and other liabilities 0.4 0.0 0.1 0.0 1 Primarily precious metals, commodity and energy products. 2 Represents derivatives where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place.
Offsetting of securities purchased under resale agreements and securities borrowing transactions	Offsetting of securities purchased under resale agreements and securities borrowing transactions 2Q21 4Q20 Net Net Securities purchased under resale agreements and securities borrowing transactions (CHF billion) Securities purchased under resale agreements 74.9 (14.1) 60.8 55.8 (7.5) 48.3 Securities borrowing transactions 9.5 (0.5) 9.0 11.9 (0.4) 11.5 Total subject to enforceable master netting agreements 84.4 (14.6) 69.8 67.7 (7.9) 59.8 Total not subject to enforceable master netting agreements 1 24.8 – 24.8 19.3 – 19.3 Total 109.2 (14.6) 94.6 2 87.0 (7.9) 79.1 2 1 Represents securities purchased under resale agreements and securities borrowing transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 69,465 million and CHF 57,994 million of the total net amount as of the end of 2Q21 and 4Q20, respectively, are reported at fair value.
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral	Offsetting of securities sold under repurchase agreements and securities lending transactions 2Q21 4Q20 Net Net Securities sold under repurchase agreements and securities lending transactions (CHF billion) Securities sold under repurchase agreements 29.5 (14.6) 14.9 26.0 (7.9) 18.1 Securities lending transactions 3.0 0.0 3.0 3.5 0.0 3.5 Obligation to return securities received as collateral, at fair value 37.7 0.0 37.7 49.9 0.0 49.9 Total subject to enforceable master netting agreements 70.2 (14.6) 55.6 79.4 (7.9) 71.5 Total not subject to enforceable master netting agreements 1 4.0 – 4.0 3.1 – 3.1 Total 74.2 (14.6) 59.6 82.5 (7.9) 74.6 of which securities sold under repurchase agreements and securities lending transactions 35.5 (14.6) 20.9 2 31.7 (7.9) 23.8 2 of which obligation to return securities received as collateral, at fair value 38.7 0.0 38.7 50.8 0.0 50.8 1 Represents securities sold under repurchase agreements and securities lending transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 10,983 million and CHF 13,594 million of the total net amount as of the end of 2Q21 and 4Q20, respectively, are reported at fair value.
Amounts not offset in the consolidated balance sheets	Amounts not offset in the consolidated balance sheets 2Q21 4Q20 1 Cash 1 1 Cash 1 Financial assets subject to enforceable master netting agreements (CHF billion) Derivatives 13.7 5.1 0.0 8.6 14.4 5.5 0.1 8.8 Securities purchased under resale agreements 60.8 60.8 0.0 0.0 48.3 48.3 0.0 0.0 Securities borrowing transactions 9.0 8.8 0.0 0.2 11.5 11.1 0.0 0.4 Total financial assets subject to enforceable master netting agreements 83.5 74.7 0.0 8.8 74.2 64.9 0.1 9.2 Financial liabilities subject to enforceable master netting agreements (CHF billion) Derivatives 7.1 1.4 0.0 5.7 10.7 2.2 0.0 8.5 Securities sold under repurchase agreements 14.9 14.9 0.0 0.0 18.1 18.1 0.0 0.0 Securities lending transactions 3.0 2.6 0.0 0.4 3.5 3.2 0.0 0.3 Obligation to return securities received as collateral, at fair value 37.7 32.4 0.0 5.3 49.9 43.4 0.0 6.5 Total financial liabilities subject to enforceable master netting agreements 62.7 51.3 0.0 11.4 82.2 66.9 0.0 15.3 1 The total amount reported in financial instruments (recognized financial assets and financial liabilities and non-cash financial collateral) and cash collateral is limited to the amount of the related instruments presented in the consolidated balance sheets and therefore any over-collateralization of these positions is not included.
Bank
Offsetting of derivatives	Offsetting of derivatives 6M21 2020 Derivative Derivative Derivative Derivative Gross derivatives subject to enforceable master netting agreements (CHF billion) OTC-cleared 5.1 3.7 6.1 4.6 OTC 52.2 48.6 68.2 65.7 Exchange-traded 0.1 0.1 0.5 0.6 Interest rate products 57.4 52.4 74.8 70.9 OTC-cleared 0.2 0.2 0.2 0.2 OTC 19.1 20.4 23.1 27.7 Foreign exchange products 19.3 20.6 23.3 27.9 OTC 9.3 14.1 10.7 15.1 Exchange-traded 23.2 22.1 19.9 20.4 Equity/index-related products 32.5 36.2 30.6 35.5 OTC-cleared 1.1 1.2 0.7 0.7 OTC 3.7 4.7 3.9 4.9 Credit derivatives 4.8 5.9 4.6 5.6 OTC 1.5 0.9 1.6 0.8 Exchange-traded 0.0 0.0 0.1 0.1 Other products 1 1.5 0.9 1.7 0.9 OTC-cleared 6.4 5.1 7.0 5.5 OTC 85.8 88.7 107.5 114.2 Exchange-traded 23.3 22.2 20.5 21.1 Total gross derivatives subject to enforceable master netting agreements 115.5 116.0 135.0 140.8 Offsetting (CHF billion) OTC-cleared (5.7) (5.0) (6.2) (5.4) OTC (74.7) (82.4) (94.4) (104.4) Exchange-traded (21.4) (21.5) (20.0) (20.3) Offsetting (101.8) (108.9) (120.6) (130.1) of which counterparty netting (87.8) (87.8) (103.2) (103.2) of which cash collateral netting (14.0) (21.1) (17.4) (26.9) Net derivatives presented in the consolidated balance sheets (CHF billion) OTC-cleared 0.7 0.1 0.8 0.1 OTC 11.1 6.3 13.1 9.8 Exchange-traded 1.9 0.7 0.5 0.8 Total net derivatives subject to enforceable master netting agreements 13.7 7.1 14.4 10.7 Total derivatives not subject to enforceable master netting agreements 2 10.8 5.2 11.2 6.8 Total net derivatives presented in the consolidated balance sheets 24.5 12.3 25.6 17.5 of which recorded in trading assets and trading liabilities 24.1 12.3 25.5 17.5 of which recorded in other assets and other liabilities 0.4 0.0 0.1 0.0 1 Primarily precious metals, commodity and energy products. 2 Represents derivatives where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place.
Offsetting of securities purchased under resale agreements and securities borrowing transactions	Offsetting of securities purchased under resale agreements and securities borrowing transactions 6M21 2020 Net Net Securities purchased under resale agreements and securities borrowing transactions (CHF billion) Securities purchased under resale agreements 74.9 (14.1) 60.8 55.8 (7.5) 48.3 Securities borrowing transactions 9.5 (0.5) 9.0 11.9 (0.4) 11.5 Total subject to enforceable master netting agreements 84.4 (14.6) 69.8 67.7 (7.9) 59.8 Total not subject to enforceable master netting agreements 1 24.8 – 24.8 19.3 – 19.3 Total 109.2 (14.6) 94.6 2 87.0 (7.9) 79.1 2 1 Represents securities purchased under resale agreements and securities borrowing transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 69,465 million and CHF 57,994 million of the total net amount as of the end of 6M21 and 2020, respectively, are reported at fair value.
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral	Offsetting of securities sold under repurchase agreements and securities lending transactions 6M21 2020 Net Net Securities sold under repurchase agreements and securities lending transactions (CHF billion) Securities sold under repurchase agreements 29.6 (14.6) 15.0 26.1 (7.9) 18.2 Securities lending transactions 3.0 0.0 3.0 3.5 0.0 3.5 Obligation to return securities received as collateral, at fair value 37.7 0.0 37.7 49.9 0.0 49.9 Total subject to enforceable master netting agreements 70.3 (14.6) 55.7 79.5 (7.9) 71.6 Total not subject to enforceable master netting agreements 1 4.0 – 4.0 3.1 – 3.1 Total 74.3 (14.6) 59.7 82.6 (7.9) 74.7 of which securities sold under repurchase agreements and securities lending transactions 35.6 (14.6) 21.0 2 31.8 (7.9) 23.9 2 of which obligation to return securities received as collateral, at fair value 38.7 0.0 38.7 50.8 0.0 50.8 1 Represents securities sold under repurchase agreements and securities lending transactions where a legal opinion supporting the enforceability of netting in the event of default or termination under the agreement is not in place. 2 CHF 11,080 million and CHF 13,688 million of the total net amount as of the end of 6M21 and 2020, respectively, are reported at fair value.
Amounts not offset in the consolidated balance sheets	Amounts not offset in the consolidated balance sheets 6M21 2020 1 Cash 1 1 Cash 1 Financial assets subject to enforceable master netting agreements (CHF billion) Derivatives 13.7 5.1 0.0 8.6 14.4 5.5 0.1 8.8 Securities purchased under resale agreements 60.8 60.8 0.0 0.0 48.3 48.3 0.0 0.0 Securities borrowing transactions 9.0 8.8 0.0 0.2 11.5 11.1 0.0 0.4 Total financial assets subject to enforceable master netting agreements 83.5 74.7 0.0 8.8 74.2 64.9 0.1 9.2 Financial liabilities subject to enforceable master netting agreements (CHF billion) Derivatives 7.1 1.4 0.0 5.7 10.7 2.2 0.0 8.5 Securities sold under repurchase agreements 15.0 15.0 0.0 0.0 18.2 18.2 0.0 0.0 Securities lending transactions 3.0 2.6 0.0 0.4 3.5 3.2 0.0 0.3 Obligation to return securities received as collateral, at fair value 37.7 32.4 0.0 5.3 49.9 43.4 0.0 6.5 Total financial liabilities subject to enforceable master netting agreements 62.8 51.4 0.0 11.4 82.3 67.0 0.0 15.3 1 The total amount reported in financial instruments (recognized financial assets and financial liabilities and non-cash financial collateral) and cash collateral is limited to the amount of the related instruments presented in the consolidated balance sheets and therefore any over-collateralization of these positions is not included.

Tax (Tables)

Tax (Tables)	6 Months Ended
	Jun. 30, 2021
Reconciliation of taxes computed at the Swiss statutory rate	Tax expense reconciliation in 2Q21 Income tax expense computed at the Swiss statutory tax rate of 18.5% (CHF million) 150 Increase/(decrease) in income taxes resulting from Foreign tax rate differential (45) Changes in tax law and rates (31) Other non-deductible expenses 140 Changes in deferred tax valuation allowance 292 Lower taxed income (40) Income taxable to noncontrolling interests 15 (Windfall tax benefits)/shortfall tax charges on share-based compensation 31 Other 54 Income tax expense 566
Effective tax rate	Effective tax rate in 2Q21 1Q21 2Q20 6M21 6M20 Effective tax rate (%) 69.6 69.5 25.2 71.4 10.2
Net deferred tax assets	Net deferred tax assets end of 2Q21 1Q21 Net deferred tax assets (CHF million) Deferred tax assets 4,201 3,964 of which net operating losses 1,380 1,011 of which deductible temporary differences 2,821 2,953 Deferred tax liabilities (578) (557) Net deferred tax assets 3,623 3,407
Bank
Reconciliation of taxes computed at the Swiss statutory rate	Tax expense reconciliation in 6M21 Income tax expense computed at the Swiss statutory tax rate of 18.5% (CHF million) 3 Increase/(decrease) in income taxes resulting from Foreign tax rate differential (50) Changes in tax law and rates (27) Other non-deductible expenses 49 Changes in deferred tax valuation allowance 49 Lower taxed income (7) Income taxable to noncontrolling interests 2 (Windfall tax benefits)/shortfall tax charges on share-based compensation 29 Other (42) Income tax expense 6
Effective tax rate	Effective tax rate in 6M21 6M20 Effective tax rate (%) 40.0 9.5
Net deferred tax assets	Net deferred tax assets end of 6M21 2020 Net deferred tax assets (CHF million) Deferred tax assets 4,155 3,630 of which net operating losses 1,371 1,064 of which deductible temporary differences 2,784 2,566 Deferred tax liabilities (164) (157) Net deferred tax assets 3,991 3,473

Employee deferred compensation

Employee deferred compensation (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based compensation disclosures
Deferred compensation expense	Deferred compensation expense in 2Q21 1Q21 2Q20 6M21 6M20 Deferred compensation expense (CHF million) Share awards 142 134 144 276 299 Performance share awards 111 109 120 220 233 Contingent Capital Awards 83 61 100 144 86 Deferred cash awards 102 49 138 151 148 Retention awards 26 13 10 39 19 Total deferred compensation expense 464 366 512 830 785
Additional information	Estimated unrecognized deferred compensation end of 2Q21 Estimated unrecognized compensation expense (CHF million) Share awards 670 Performance share awards 392 Contingent Capital Awards 275 Deferred cash awards 333 Retention Awards 307 Total 1,977 Aggregate remaining weighted-average requisite service period (years) Aggregate remaining weighted-average requisite service period 1.3
Share-based award activities	Share-based award activity 2Q21 6M21 Performance Performance Share-based award activities Balance at beginning of period 175.1 126.3 126.3 91.7 Granted 24.1 0.0 78.1 37.8 Settled (45.7) (30.1) (50.4) (33.0) Forfeited (2.4) (0.7) (2.9) (1.0) Balance at end of period 151.1 95.5 151.1 95.5 of which vested 12.8 13.9 12.8 13.9 of which unvested 138.3 81.6 138.3 81.6
Bank
Share-based compensation disclosures
Deferred compensation expense	Deferred compensation expense in 6M21 6M20 Deferred compensation expense (CHF million) Share awards 266 289 Performance share awards 213 220 Contingent Capital Awards 140 83 Deferred cash awards 169 143 Retention awards 39 19 Total deferred compensation expense 827 754
Additional information	Estimated unrecognized deferred compensation end of 6M21 Estimated unrecognized compensation expense (CHF million) Share awards 652 Performance share awards 378 Contingent Capital Awards 265 Deferred cash awards 331 Retention awards 307 Total 1,933 Aggregate remaining weighted-average requisite service period (years) Aggregate remaining weighted-average requisite service period 1.3
Share-based award activities	Share-based award activity 6M21 Performance Share-based award activities Balance at beginning of period 115.2 88.0 Granted 76.5 36.6 Settled (47.7) (31.8) Forfeited (2.7) (1.0) Balance at end of period 141.3 91.8 of which vested 11.3 13.0 of which unvested 130.0 78.8

Pension and other post-retire_2

Pension and other post-retirement benefits (Tables)	6 Months Ended
	Jun. 30, 2021
Components of total pension costs	Components of net periodic benefit costs in 2Q21 1Q21 2Q20 6M21 6M20 Net periodic benefit costs/(credits) (CHF million) Service costs on benefit obligation 60 60 55 120 109 Interest costs on benefit obligation 15 15 23 30 47 Expected return on plan assets (120) (123) (109) (243) (219) Amortization of recognized prior service cost/(credit) (31) (29) (41) (60) (83) Amortization of recognized actuarial losses 93 93 87 186 174 Settlement losses/(gains) 2 (10) 2 (8) 5 Curtailment losses/(gains) 2 (1) 0 1 0 Special termination benefits 3 10 0 13 3 Net periodic benefit costs 24 15 17 39 36 Service costs on benefit obligation are reflected in compensation and benefits. Other components of net periodic benefit costs are reflected in general and administrative expenses or, except for 2Q20 and 6M20, in restructuring expenses.
Bank
Components of total pension costs	Components of net periodic benefit costs in 6M21 6M20 Net periodic benefit costs/(credits) (CHF million) Service costs on benefit obligation 7 8 Interest costs on benefit obligation 25 37 Expected return on plan assets (34) (44) Amortization of recognized prior service cost/(credit) 1 1 Amortization of recognized actuarial losses 8 7 Settlement losses/(gains) (10) 0 Net periodic benefit costs (3) 9 Service costs on benefit obligation are reflected in compensation and benefits. Other components of net periodic benefit costs are reflected in general and administrative expenses.

Derivatives and hedging activ_2

Derivatives and hedging activities (Tables)	6 Months Ended
	Jun. 30, 2021
Fair value of derivative instruments	Fair value of derivative instruments Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 4,305.9 1.4 1.3 0.0 0.0 0.0 Swaps 9,045.8 43.3 39.1 140.6 0.7 0.1 Options bought and sold (OTC) 884.8 13.0 12.8 0.0 0.0 0.0 Futures 341.3 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 140.1 0.1 0.2 0.0 0.0 0.0 Interest rate products 14,717.9 57.8 53.4 140.6 0.7 0.1 Forwards 996.1 7.8 6.6 21.0 0.2 0.0 Swaps 355.3 9.6 11.8 0.0 0.0 0.2 Options bought and sold (OTC) 240.3 2.4 2.7 0.0 0.0 0.0 Futures 17.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 0.6 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,609.8 19.8 21.1 21.0 0.2 0.2 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 121.3 1.9 4.7 0.0 0.0 0.0 Options bought and sold (OTC) 258.8 15.7 11.8 0.0 0.0 0.0 Futures 41.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 608.3 23.3 22.2 0.0 0.0 0.0 Equity/index-related products 1,031.0 40.9 39.0 0.0 0.0 0.0 Credit derivatives 2 594.3 5.1 6.3 0.0 0.0 0.0 Forwards 16.0 0.2 0.2 0.0 0.0 0.0 Swaps 11.4 1.1 0.6 0.0 0.0 0.0 Options bought and sold (OTC) 18.4 0.3 0.2 0.0 0.0 0.0 Futures 12.9 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.8 0.1 0.1 0.0 0.0 0.0 Other products 3 70.5 1.7 1.1 0.0 0.0 0.0 Total derivative instruments 18,023.5 125.3 120.9 161.6 0.9 0.3 The notional amount, PRV and NRV (trading and hedging) was CHF 18,185.1 billion, CHF 126.2 billion and CHF 121.2 billion, respectively, as of June 30, 2021. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Fair value of derivative instruments (continued) Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 5,221.5 2.7 2.8 0.0 0.0 0.0 Swaps 8,087.8 53.5 50.2 126.1 0.9 0.1 Options bought and sold (OTC) 968.6 18.2 18.0 0.0 0.0 0.0 Futures 296.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 116.1 0.5 0.6 0.0 0.0 0.0 Interest rate products 14,690.6 74.9 71.6 126.1 0.9 0.1 Forwards 928.4 10.1 11.8 13.9 0.1 0.1 Swaps 345.8 10.9 13.4 0.0 0.0 0.0 Options bought and sold (OTC) 236.3 3.4 3.7 0.0 0.0 0.0 Futures 8.8 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 1.0 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,520.3 24.4 28.9 13.9 0.1 0.1 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 167.6 4.3 8.8 0.0 0.0 0.0 Options bought and sold (OTC) 218.3 14.9 10.0 0.0 0.0 0.0 Futures 23.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 454.0 20.0 20.7 0.0 0.0 0.0 Equity/index-related products 864.4 39.2 39.8 0.0 0.0 0.0 Credit derivatives 2 467.8 4.9 6.0 0.0 0.0 0.0 Forwards 12.2 0.3 0.2 0.0 0.0 0.0 Swaps 9.8 1.1 0.5 0.0 0.0 0.0 Options bought and sold (OTC) 14.8 0.3 0.2 0.0 0.0 0.0 Futures 4.2 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.6 0.1 0.1 0.0 0.0 0.0 Other products 3 52.6 1.8 1.0 0.0 0.0 0.0 Total derivative instruments 17,595.7 145.2 147.3 140.0 1.0 0.2 The notional amount, PRV and NRV (trading and hedging) was CHF 17,735.7 billion, CHF 146.2 billion and CHF 147.5 billion, respectively, as of December 31, 2020. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products.
Fair value hedges	Gains or (losses) on fair value hedges in 2Q21 1Q21 2Q20 6M21 6M20 Interest rate products (CHF million) Hedged items 1 (288) 1,156 (205) 868 (2,374) Derivatives designated as hedging instruments 1 264 (1,096) 212 (832) 2,226 The accrued interest on fair value hedges is recorded in net interest income and is excluded from this table. 1 Included in net interest income. Hedged items in fair value hedges 2Q21 4Q20 Hedged items Hedged items Carrying Hedging 1 Discontinued 2 Carrying Hedging 1 Discontinued 2 Assets (CHF billion) Investment securities 0.6 0.0 0.0 0.4 0.0 0.0 Net loans 21.6 (0.1) 0.4 20.5 0.2 0.5 Liabilities (CHF billion) Long-term debt 75.5 0.8 0.7 65.8 1.9 0.8 1 Relates to the cumulative amount of fair value hedging adjustments included in the carrying amount. 2 Relates to the cumulative amount of fair value hedging adjustments remaining for any hedged items for which hedge accounting has been discontinued.
Cash flow hedges	Cash flow hedges in 2Q21 1Q21 2Q20 6M21 6M20 Interest rate products (CHF million) Gains/(losses) recognized in AOCI on derivatives (23) (96) 21 (119) 288 Gains/(losses) reclassified from AOCI into interest and dividend income 7 3 0 10 (42) Foreign exchange products (CHF million) Gains/(losses) recognized in AOCI on derivatives 0 4 (5) 4 (84) Trading revenues 0 0 0 0 (30) Total other operating expenses 15 10 (5) 25 (11) Gains/(losses) reclassified from AOCI into income 15 10 (5) 25 (41) Gains/(losses) excluded from the assessment of effectiveness reported in trading revenues 0 0 0 0 1 1 1 Related to the forward points of a foreign currency forward.
Net investment hedges	Net investment hedges in 2Q21 1Q21 2Q20 6M21 6M20 Foreign exchange products (CHF million) Gains/(losses) recognized in the cumulative translation adjustments section of AOCI 7 (262) (38) (255) 481 Gains/(losses) reclassified from the cumulative translation adjustments section of AOCI into other revenues 0 0 9 0 9
Credit protection sold/purchased	Credit protection sold/purchased 2Q21 4Q20 1 Net credit Fair value 1 Net credit Fair value Single-name instruments (CHF billion) Investment grade 2 (55.4) 52.3 (3.1) 11.7 0.5 (52.5) 47.8 (4.7) 13.0 0.5 Non-investment grade (32.3) 30.2 (2.1) 11.7 0.6 (28.5) 26.5 (2.0) 11.8 0.4 Total single-name instruments (87.7) 82.5 (5.2) 23.4 1.1 (81.0) 74.3 (6.7) 24.8 0.9 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (74.6) 70.5 (4.1) 18.1 1.1 (68.5) 62.7 (5.8) 19.5 0.9 Multi-name instruments (CHF billion) Investment grade 2 (141.6) 136.8 (4.8) 28.8 (0.4) (99.5) 95.2 (4.3) 23.1 (0.7) Non-investment grade (34.1) 31.9 (2.2) 13.2 3 0.3 (24.3) 19.9 (4.4) 11.3 3 0.2 Total multi-name instruments (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) of which non-sovereign (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) Total instruments (CHF billion) Investment grade 2 (197.0) 189.1 (7.9) 40.5 0.1 (152.0) 143.0 (9.0) 36.1 (0.2) Non-investment grade (66.4) 62.1 (4.3) 24.9 0.9 (52.8) 46.4 (6.4) 23.1 0.6 Total instruments (263.4) 251.2 (12.2) 65.4 1.0 (204.8) 189.4 (15.4) 59.2 0.4 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (250.3) 239.2 (11.1) 60.1 1.0 (192.3) 177.8 (14.5) 53.9 0.4 1 Represents credit protection purchased with identical underlyings and recoveries. 2 Based on internal ratings of BBB and above. 3 Includes synthetic securitized loan portfolios.
Contingent credit risk	Contingent credit risk 2Q21 4Q20 Special Special Contingent credit risk (CHF billion) Current net exposure 2.4 0.0 0.4 2.8 3.0 0.0 0.4 3.4 Collateral posted 2.1 0.0 – 2.1 2.4 0.0 – 2.4 Impact of a three-notch downgrade event 0.5 0.0 0.1 0.6 0.5 0.0 0.2 0.7 The impact of a downgrade event reflects the amount of additional collateral required for bilateral counterparties and special purpose entities and the amount of additional termination expenses for accelerated terminations, respectively.
Reconciliation of notional amount of credit derivatives included in fair value of derivative instruments to credit protection sold/purchased	Credit derivatives end of 2Q21 4Q20 Credit derivatives (CHF billion) Credit protection sold 263.4 204.8 Credit protection purchased 251.2 189.4 Other protection purchased 65.4 59.2 Other instruments 1 14.3 14.4 Total credit derivatives 594.3 467.8 1 Consists of total return swaps and other derivative instruments.
Maturity of credit protection sold	Maturity of credit protection sold Maturity Maturity Maturity 2Q21 (CHF billion) Single-name instruments 13.7 69.9 4.1 87.7 Multi-name instruments 40.9 121.9 12.9 175.7 Total instruments 54.6 191.8 17.0 263.4 4Q20 (CHF billion) Single-name instruments 14.0 62.7 4.3 81.0 Multi-name instruments 29.6 82.6 11.6 123.8 Total instruments 43.6 145.3 15.9 204.8
Bank
Fair value of derivative instruments	Fair value of derivative instruments Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 4,305.9 1.4 1.3 0.0 0.0 0.0 Swaps 9,053.7 43.4 39.1 137.1 0.7 0.1 Options bought and sold (OTC) 884.8 13.0 12.8 0.0 0.0 0.0 Futures 341.3 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 140.1 0.1 0.2 0.0 0.0 0.0 Interest rate products 14,725.8 57.9 53.4 137.1 0.7 0.1 Forwards 996.1 7.8 6.6 21.0 0.2 0.2 Swaps 355.3 9.6 11.8 0.0 0.0 0.0 Options bought and sold (OTC) 240.3 2.4 2.7 0.0 0.0 0.0 Futures 17.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 0.6 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,609.8 19.8 21.1 21.0 0.2 0.2 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 121.3 1.9 4.7 0.0 0.0 0.0 Options bought and sold (OTC) 258.8 15.7 11.8 0.0 0.0 0.0 Futures 41.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 608.3 23.3 22.2 0.0 0.0 0.0 Equity/index-related products 1,031.0 40.9 39.0 0.0 0.0 0.0 Credit derivatives 2 594.3 5.1 6.3 0.0 0.0 0.0 Forwards 16.0 0.2 0.2 0.0 0.0 0.0 Swaps 11.4 1.1 0.6 0.0 0.0 0.0 Options bought and sold (OTC) 18.4 0.3 0.2 0.0 0.0 0.0 Futures 12.9 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.8 0.1 0.1 0.0 0.0 0.0 Other products 3 70.5 1.7 1.1 0.0 0.0 0.0 Total derivative instruments 18,031.4 125.4 120.9 158.1 0.9 0.3 The notional amount, PRV and NRV (trading and hedging) was CHF 18,189.5 billion, CHF 126.3 billion and CHF 121.2 billion, respectively, as of June 30, 2021. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products. Fair value of derivative instruments (continued) Trading Hedging 1 Positive Negative Positive Negative Derivative instruments (CHF billion) Forwards and forward rate agreements 5,221.5 2.7 2.8 0.0 0.0 0.0 Swaps 8,088.7 53.5 50.3 126.1 0.9 0.1 Options bought and sold (OTC) 968.6 18.2 18.0 0.0 0.0 0.0 Futures 296.6 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 116.1 0.5 0.6 0.0 0.0 0.0 Interest rate products 14,691.5 74.9 71.7 126.1 0.9 0.1 Forwards 928.4 10.1 11.8 13.9 0.1 0.1 Swaps 345.8 10.9 13.4 0.0 0.0 0.0 Options bought and sold (OTC) 236.3 3.4 3.7 0.0 0.0 0.0 Futures 8.8 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 1.0 0.0 0.0 0.0 0.0 0.0 Foreign exchange products 1,520.3 24.4 28.9 13.9 0.1 0.1 Forwards 1.0 0.0 0.3 0.0 0.0 0.0 Swaps 167.6 4.3 8.8 0.0 0.0 0.0 Options bought and sold (OTC) 218.3 14.9 10.0 0.0 0.0 0.0 Futures 23.5 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 454.0 20.0 20.7 0.0 0.0 0.0 Equity/index-related products 864.4 39.2 39.8 0.0 0.0 0.0 Credit derivatives 2 467.8 4.9 6.0 0.0 0.0 0.0 Forwards 12.2 0.3 0.2 0.0 0.0 0.0 Swaps 9.8 1.1 0.5 0.0 0.0 0.0 Options bought and sold (OTC) 14.8 0.3 0.2 0.0 0.0 0.0 Futures 4.2 0.0 0.0 0.0 0.0 0.0 Options bought and sold (exchange-traded) 11.6 0.1 0.1 0.0 0.0 0.0 Other products 3 52.6 1.8 1.0 0.0 0.0 0.0 Total derivative instruments 17,596.6 145.2 147.4 140.0 1.0 0.2 The notional amount, PRV and NRV (trading and hedging) was CHF 17,736.6 billion, CHF 146.2 billion and CHF 147.6 billion, respectively, as of December 31, 2020. 1 Relates to derivative contracts that qualify for hedge accounting under US GAAP. 2 Primarily credit default swaps. 3 Primarily precious metals, commodity and energy products.
Fair value hedges	Gains or losses on fair value hedges in 6M21 6M20 Interest rate products (CHF million) Hedged items 1 776 (2,374) Derivatives designated as hedging instruments 1 (740) 2,226 The accrued interest on fair value hedges is recorded in net interest income and is excluded from this table. 1 Included in net interest income. Hedged items in fair value hedges 6M21 2020 Hedged items Hedged items Carrying Hedging 1 Discontinued 2 Carrying Hedging 1 Discontinued 2 Assets (CHF billion) Investment securities 0.6 0.0 0.0 0.4 0.0 0.0 Net loans 21.6 (0.1) 0.4 20.5 0.2 0.5 Liabilities (CHF billion) Long-term debt 72.1 0.9 0.7 65.8 1.9 0.8 1 Relates to the cumulative amount of fair value hedging adjustments included in the carrying amount. 2 Relates to the cumulative amount of fair value hedging adjustments remaining for any hedged items for which hedge accounting has been discontinued.
Cash flow hedges	Cash flow hedges in 6M21 6M20 Interest rate products (CHF million) Gains/(losses) recognized in AOCI on derivatives (119) 288 Gains/(losses) reclassified from AOCI into interest and dividend income 10 (42) Foreign exchange products (CHF million) Gains/(losses) recognized in AOCI on derivatives 4 (84) Trading revenues 0 (30) Total other operating expenses 25 (11) Gains/(losses) reclassified from AOCI into income 25 (41) Gains/(losses) excluded from the assessment of effectiveness reported in trading revenues 1 0 1 1 Related to the forward points of a foreign currency forward.
Net investment hedges	Net investment hedges in 6M21 6M20 Foreign exchange products (CHF million) Gains/(losses) recognized in the cumulative translation adjustments section of AOCI (248) 476 Gains/(losses) reclassified from the cumulative translation adjustments section of AOCI into other revenues 0 9
Credit protection sold/purchased	Credit protection sold/purchased 6M21 2020 1 Net credit Fair value 1 Net credit Fair value Single-name instruments (CHF billion) Investment grade 2 (55.4) 52.3 (3.1) 11.7 0.5 (52.5) 47.8 (4.7) 13.0 0.5 Non-investment grade (32.3) 30.2 (2.1) 11.7 0.6 (28.5) 26.5 (2.0) 11.8 0.4 Total single-name instruments (87.7) 82.5 (5.2) 23.4 1.1 (81.0) 74.3 (6.7) 24.8 0.9 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (74.6) 70.5 (4.1) 18.1 1.1 (68.5) 62.7 (5.8) 19.5 0.9 Multi-name instruments (CHF billion) Investment grade 2 (141.6) 136.8 (4.8) 28.8 (0.4) (99.5) 95.2 (4.3) 23.1 (0.7) Non-investment grade (34.1) 31.9 (2.2) 13.2 3 0.3 (24.3) 19.9 (4.4) 11.3 3 0.2 Total multi-name instruments (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) of which non-sovereign (175.7) 168.7 (7.0) 42.0 (0.1) (123.8) 115.1 (8.7) 34.4 (0.5) Total instruments (CHF billion) Investment grade 2 (197.0) 189.1 (7.9) 40.5 0.1 (152.0) 143.0 (9.0) 36.1 (0.2) Non-investment grade (66.4) 62.1 (4.3) 24.9 0.9 (52.8) 46.4 (6.4) 23.1 0.6 Total instruments (263.4) 251.2 (12.2) 65.4 1.0 (204.8) 189.4 (15.4) 59.2 0.4 of which sovereign (13.1) 12.0 (1.1) 5.3 0.0 (12.5) 11.6 (0.9) 5.3 0.0 of which non-sovereign (250.3) 239.2 (11.1) 60.1 1.0 (192.3) 177.8 (14.5) 53.9 0.4 1 Represents credit protection purchased with identical underlyings and recoveries. 2 Based on internal ratings of BBB and above. 3 Includes synthetic securitized loan portfolios.
Contingent credit risk	Contingent credit risk 6M21 2020 Special Special Contingent credit risk (CHF billion) Current net exposure 2.4 0.0 0.4 2.8 3.0 0.0 0.4 3.4 Collateral posted 2.1 0.0 – 2.1 2.4 0.0 – 2.4 Impact of a three-notch downgrade event 0.5 0.0 0.1 0.6 0.5 0.0 0.2 0.7 The impact of a downgrade event reflects the amount of additional collateral required for bilateral counterparties and special purpose entities and the amount of additional termination expenses for accelerated terminations, respectively.
Reconciliation of notional amount of credit derivatives included in fair value of derivative instruments to credit protection sold/purchased	Credit derivatives end of 6M21 2020 Credit derivatives (CHF billion) Credit protection sold 263.4 204.8 Credit protection purchased 251.2 189.4 Other protection purchased 65.4 59.2 Other instruments 1 14.3 14.4 Total credit derivatives 594.3 467.8 1 Consists of total return swaps and other derivative instruments.
Maturity of credit protection sold	Maturity of credit protection sold Maturity Maturity Maturity 6M21 (CHF billion) Single-name instruments 13.7 69.9 4.1 87.7 Multi-name instruments 40.9 121.9 12.9 175.7 Total instruments 54.6 191.8 17.0 263.4 2020 (CHF billion) Single-name instruments 14.0 62.7 4.3 81.0 Multi-name instruments 29.6 82.6 11.6 123.8 Total instruments 43.6 145.3 15.9 204.8

Guarantees and commitments (Tab

Guarantees and commitments (Tables)	6 Months Ended
	Jun. 30, 2021
Guarantees	Guarantees Maturity Maturity Total Total 1 2Q21 (CHF million) Credit guarantees and similar instruments 2,411 1,921 4,332 4,268 20 2,195 Performance guarantees and similar instruments 4,484 2,868 7,352 6,223 38 2,706 Derivatives 2 11,082 4,968 16,050 16,050 403 – 3 Other guarantees 4,102 2,131 6,233 6,189 61 3,705 Total guarantees 22,079 11,888 33,967 32,730 522 8,606 4Q20 (CHF million) Credit guarantees and similar instruments 1,645 1,434 3,079 3,016 27 1,637 Performance guarantees and similar instruments 3,607 2,925 6,532 5,601 30 2,535 Derivatives 2 10,531 6,042 16,573 16,573 380 – 3 Other guarantees 3,555 2,588 6,143 6,130 85 3,725 Total guarantees 19,338 12,989 32,327 31,320 522 7,897 1 Total net amount is computed as the gross amount less any participations. 2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Group had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments. 3 Collateral for derivatives accounted for as guarantees is not significant.
Other commitments	Other commitments 2Q21 4Q20 Maturity Maturity Total Total 1 Maturity Maturity Total Total 1 Other commitments (CHF million) Irrevocable commitments under documentary credits 4,446 82 4,528 4,279 2,469 3,915 97 4,012 3,963 2,404 Irrevocable loan commitments 2 24,764 105,111 129,875 125,484 60,786 19,813 99,209 119,022 115,116 53,039 Forward reverse repurchase agreements 71 0 71 71 71 17 0 17 17 17 Other commitments 1,815 322 2,137 2,137 16 135 1,808 1,943 1,943 19 Total other commitments 31,096 105,515 136,611 131,971 63,342 23,880 101,114 124,994 121,039 55,479 1 Total net amount is computed as the gross amount less any participations. 2 Irrevocable loan commitments do not include a total gross amount of CHF 144,958 million and CHF 130,877 million of unused credit limits as of the end of 2Q21 and 4Q20 respectively, which were revocable at the Group's sole discretion upon notice to the client.
Bank
Guarantees	Guarantees Maturity Maturity 1 6M21 (CHF million) Credit guarantees and similar instruments 2,411 1,925 4,336 4,272 20 2,195 Performance guarantees and similar instruments 4,484 2,868 7,352 6,223 38 2,706 Derivatives 2 11,082 4,968 16,050 16,050 403 – 3 Other guarantees 4,102 2,131 6,233 6,189 61 3,705 Total guarantees 22,079 11,892 33,971 32,734 522 8,606 2020 (CHF million) Credit guarantees and similar instruments 1,645 1,438 3,083 3,020 27 1,637 Performance guarantees and similar instruments 3,607 2,925 6,532 5,601 30 2,535 Derivatives 2 10,531 6,042 16,573 16,573 380 – 3 Other guarantees 3,555 2,588 6,143 6,130 85 3,725 Total guarantees 19,338 12,993 32,331 31,324 522 7,897 1 Total net amount is computed as the gross amount less any participations. 2 Excludes derivative contracts with certain active commercial and investment banks and certain other counterparties, as such contracts can be cash settled and the Bank had no basis to conclude it was probable that the counterparties held, at inception, the underlying instruments. 3 Collateral for derivatives accounted for as guarantees is not considered significant.
Other commitments	Other commitments 6M21 2020 Maturity Maturity 1 Maturity Maturity 1 Other commitments (CHF million) Irrevocable commitments under documentary credits 4,446 82 4,528 4,279 2,469 3,915 97 4,012 3,963 2,404 Irrevocable loan commitments 24,764 105,111 129,875 2 125,484 60,786 19,813 99,209 119,022 2 115,116 53,039 Forward reverse repurchase agreements 71 0 71 71 71 17 0 17 17 17 Other commitments 1,815 322 2,137 2,137 16 135 1,808 1,943 1,943 19 Total other commitments 31,096 105,515 136,611 131,971 63,342 23,880 101,114 124,994 121,039 55,479 1 Total net amount is computed as the gross amount less any participations. 2 Irrevocable loan commitments do not include a total gross amount of CHF 145,045 million and CHF 130,965 million of unused credit limits as of the end of 6M21 and 2020, respectively, which were revocable at the Bank's sole discretion upon notice to the client. The prior period has been adjusted to the current presentation.

Transfers of financial assets_2

Transfers of financial assets and variable interest entities (Tables)	6 Months Ended
	Jun. 30, 2021
Securitizations	Securitizations in 6M21 6M20 Gains/(losses) and cash flows (CHF million) CMBS Net gain 1 0 30 Proceeds from transfer of assets 999 4,862 Cash received on interests that continue to be held 26 21 RMBS Net gain 1 62 22 Proceeds from transfer of assets 20,876 11,373 Purchases of previously transferred financial assets or its underlying collateral (1,072) 0 Servicing fees 1 1 Cash received on interests that continue to be held 430 457 Other asset-backed financings Net gain 1 47 61 Proceeds from transfer of assets 6,802 4,766 Purchases of previously transferred financial assets or its underlying collateral (699) (638) Fees 2 81 72 Cash received on interests that continue to be held 7 11 1 Includes underwriting revenues, deferred origination fees, gains or losses on the sale of collateral to the SPE and gains or losses on the sale of newly issued securities to third parties, but excludes net interest income on assets prior to the securitization. The gains or losses on the sale of the collateral is the difference between the fair value on the day prior to the securitization pricing date and the sale price of the loans. 2 Represents management fees and performance fees earned for investment management services provided to managed CLOs.
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement	Principal amounts outstanding and total assets of SPEs resulting from continuing involvement end of 2Q21 4Q20 CHF million CMBS Principal amount outstanding 16,247 17,421 Total assets of SPE 23,079 24,455 RMBS Principal amount outstanding 58,318 47,324 Total assets of SPE 58,318 47,863 Other asset-backed financings Principal amount outstanding 26,307 24,968 Total assets of SPE 55,188 50,817 Principal amount outstanding relates to assets transferred from the Group and does not include principal amounts for assets transferred from third parties.
Key economic assumptions used in measuring fair value of beneficial interests at time of transfer	Key economic assumptions used in measuring fair value of beneficial interests at time of transfer 6M21 6M20 at time of transfer, in CMBS RMBS CMBS RMBS CHF million, except where indicated Fair value of beneficial interests 92 1,337 172 1,646 of which level 2 82 1,019 158 1,465 of which level 3 10 318 14 181 Weighted-average life, in years 7.4 5.0 8.1 3.6 Prepayment speed assumption (rate per annum), in % 1 – 2 3.0 – 32.8 – 2 1.0 – 38.2 Cash flow discount rate (rate per annum), in % 3 1.8 – 4.5 1.0 – 15.4 1.4 – 9.2 0.7 – 24.7 Expected credit losses (rate per annum), in % 4 0.9 – 3.9 0.1 – 13.7 4.0 – 8.6 3.3 – 22.9 Transfers of assets in which the Group does not have beneficial interests are not included in this table. 1 Prepayment speed assumption (PSA) is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the constant prepayment rate (CPR) assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 2 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 3 The rate is based on the weighted-average yield on the beneficial interests. 4 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero.
Key economic assumptions used in measuring fair value of beneficial interests held in SPEs	Key economic assumptions used in measuring fair value of beneficial interests held in SPEs 2Q21 4Q20 1 Other asset- 2 1 Other asset- 2 CHF million, except where indicated Fair value of beneficial interests 232 2,382 319 296 1,851 350 of which non-investment grade 38 330 18 36 631 23 Weighted-average life, in years 6.0 4.0 5.5 5.6 4.0 4.8 Prepayment speed assumption (rate per annum), in % 3 – 5.2 – 30.0 – – 4.0 – 50.1 – Impact on fair value from 10% adverse change – (40.0) – – (43.7) – Impact on fair value from 20% adverse change – (78.0) – – (92.1) – Cash flow discount rate (rate per annum), in % 4 1.7 – 31.5 0.7 – 29.7 0.3 – 28.0 0.6 – 38.2 0.3 – 39.7 0.7 – 27.7 Impact on fair value from 10% adverse change (2.9) (32.5) (3.7) (4.9) (22.4) (4.2) Impact on fair value from 20% adverse change (5.6) (62.7) (7.3) (9.6) (43.5) (8.2) Expected credit losses (rate per annum), in % 5 0.9 – 13.0 0.2 – 28.6 0.3 – 28.0 0.4 – 14.7 0.6 – 39.6 0.7 – 26.8 Impact on fair value from 10% adverse change (1.8) (25.9) (3.5) (4.3) (20.2) (4.5) Impact on fair value from 20% adverse change (3.5) (50.2) (6.8) (8.5) (39.2) (8.9) 1 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 2 CDOs and CLOs within this category are generally structured to be protected from prepayment risk. 3 PSA is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the CPR assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 4 The rate is based on the weighted-average yield on the beneficial interests. 5 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero.
Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved	Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved end of 2Q21 4Q20 CHF million Other asset-backed financings Trading assets 721 496 Other assets 198 246 Liability to SPE, included in other liabilities (919) (742)
Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral	Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by class of collateral pledged end of 2Q21 4Q20 CHF billion Government debt securities 15.8 12.1 Corporate debt securities 8.6 7.7 Asset-backed securities 4.3 6.0 Other 3.0 1.9 Securities sold under repurchase agreements 31.7 27.7 Government debt securities 0.2 0.4 Corporate debt securities 0.3 0.1 Equity securities 3.3 3.5 Other 0.0 0.1 Securities lending transactions 3.8 4.1 Government debt securities 4.7 5.8 Corporate debt securities 4.4 5.6 Equity securities 29.4 39.3 Other 0.2 0.1 Obligation to return securities received as collateral, at fair value 38.7 50.8 Total 74.2 82.6 Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by remaining contractual maturity Remaining contractual maturities No stated 1 Up to 2 31–90 More than 2Q21 (CHF billion) Securities sold under repurchase agreements 3.4 16.4 2.6 9.3 31.7 Securities lending transactions 3.8 0.0 0.0 0.0 3.8 Obligation to return securities received as collateral, at fair value 38.6 0.0 0.0 0.1 38.7 Total 45.8 16.4 2.6 9.4 74.2 4Q20 (CHF billion) Securities sold under repurchase agreements 5.8 11.8 5.9 4.2 27.7 Securities lending transactions 4.0 0.0 0.1 0.0 4.1 Obligation to return securities received as collateral, at fair value 50.2 0.3 0.3 0.0 50.8 Total 60.0 12.1 6.3 4.2 82.6 1 Includes contracts with no contractual maturity that may contain termination arrangements subject to a notice period. 2 Includes overnight transactions.
Consolidated VIEs in which the Group was primary beneficiary	Consolidated VIEs in which the Group was the primary beneficiary Financial intermediation CP Securi- 2Q21 (CHF million) Cash and due from banks 0 39 16 21 171 247 Trading assets 0 1,068 54 788 6 1,916 Other investments 0 0 109 877 245 1,231 Net loans 603 0 61 22 0 686 Other assets 24 540 31 82 811 1,488 of which loans held-for-sale 0 57 26 0 0 83 of which premises and equipment 0 0 0 29 0 29 Total assets of consolidated VIEs 627 1,647 271 1,790 1,233 5,568 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 9 0 9 Short-term borrowings 4,700 29 0 0 1,755 1 6,484 Long-term debt 93 1,180 0 3 43 1,319 Other liabilities 70 1 4 70 92 237 Total liabilities of consolidated VIEs 4,863 1,210 4 82 1,891 8,050 4Q20 (CHF million) Cash and due from banks 0 23 22 37 8 90 Trading assets 0 1,255 50 840 19 2,164 Other investments 0 0 129 920 202 1,251 Net loans 653 0 51 29 167 900 Other assets 21 979 15 82 779 1,876 of which loans held-for-sale 0 462 10 0 0 472 of which premises and equipment 0 0 0 30 4 34 Total assets of consolidated VIEs 674 2,257 267 1,908 1,175 6,281 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 10 0 10 Short-term borrowings 4,178 0 0 0 0 4,178 Long-term debt 0 1,701 0 10 35 1,746 Other liabilities 53 1 3 73 78 208 Total liabilities of consolidated VIEs 4,231 1,702 3 93 114 6,143 1 Reflects the Group’s MCNs outstanding as of the end of 2Q21; these MCNs were issued by Credit Suisse Group (Guernsey) VII Limited, a consolidated VIE of the Group.
Non-consolidated VIEs	Non-consolidated VIEs Financial intermediation CDO/ CP 1 Securi- 2Q21 (CHF million) Trading assets 257 0 4,480 921 24 7,930 13,612 Net loans 631 547 365 2,770 8,778 1,375 14,466 Other assets 7 0 302 177 0 546 1,032 Total variable interest assets 895 547 5,147 3,868 8,802 9,851 29,110 Maximum exposure to loss 1,532 5,966 7,887 3,868 13,568 10,593 43,414 Total assets of non-consolidated VIEs 11,001 12,544 106,170 163,757 37,131 31,092 361,695 4Q20 (CHF million) Trading assets 250 0 4,500 1,113 66 8,617 14,546 Net loans 357 371 734 1,967 6,989 939 11,357 Other assets 2 0 3 119 0 344 468 Total variable interest assets 609 371 5,237 3,199 7,055 9,900 26,371 Maximum exposure to loss 852 5,538 7,329 3,199 11,235 10,226 38,379 Total assets of non-consolidated VIEs 8,553 11,148 127,785 89,686 26,186 33,140 296,498 1 Includes liquidity facilities provided to third-party CP conduits through Alpine Securities Ltd.
Bank
Securitizations	Securitizations in 6M21 6M20 Gains/(losses) and cash flows (CHF million) CMBS Net gain 1 0 30 Proceeds from transfer of assets 999 4,862 Cash received on interests that continue to be held 26 21 RMBS Net gain 1 62 22 Proceeds from transfer of assets 20,876 11,373 Purchases of previously transferred financial assets or its underlying collateral (1,072) 0 Servicing fees 1 1 Cash received on interests that continue to be held 430 457 Other asset-backed financings Net gain 1 47 61 Proceeds from transfer of assets 6,802 4,766 Purchases of previously transferred financial assets or its underlying collateral (699) (638) Fees 2 81 72 Cash received on interests that continue to be held 7 11 1 Includes underwriting revenues, deferred origination fees, gains or losses on the sale of collateral to the SPE and gains or losses on the sale of newly issued securities to third parties, but excludes net interest income on assets prior to the securitization. The gains or losses on the sale of the collateral is the difference between the fair value on the day prior to the securitization pricing date and the sale price of the loans. 2 Represents management fees and performance fees earned for investment management services provided to managed CLOs.
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement	Principal amounts outstanding and total assets of SPEs resulting from continuing involvement end of 6M21 2020 CHF million CMBS Principal amount outstanding 16,247 17,421 Total assets of SPE 23,079 24,455 RMBS Principal amount outstanding 58,318 47,324 Total assets of SPE 58,318 47,863 Other asset-backed financings Principal amount outstanding 26,307 24,968 Total assets of SPE 55,188 50,817 Principal amount outstanding relates to assets transferred from the Bank and does not include principal amounts for assets transferred from third parties.
Key economic assumptions used in measuring fair value of beneficial interests at time of transfer	Key economic assumptions used in measuring fair value of beneficial interests at time of transfer 6M21 6M20 at time of transfer, in CMBS RMBS CMBS RMBS CHF million, except where indicated Fair value of beneficial interests 92 1,337 172 1,646 of which level 2 82 1,019 158 1,465 of which level 3 10 318 14 181 Weighted-average life, in years 7.4 5.0 8.1 3.6 Prepayment speed assumption (rate per annum), in % 1 – 2 3.0 – 32.8 – 2 1.0 – 38.2 Cash flow discount rate (rate per annum), in % 3 1.8 – 4.5 1.0 – 15.4 1.4 – 9.2 0.7 – 24.7 Expected credit losses (rate per annum), in % 4 0.9 – 3.9 0.1 – 13.7 4.0 – 8.6 3.3 – 22.9 Transfers of assets in which the Bank does not have beneficial interests are not included in this table. 1 Prepayment speed assumption (PSA) is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the constant prepayment rate (CPR) assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 2 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 3 The rate was based on the weighted-average yield on the beneficial interests. 4 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero.
Key economic assumptions used in measuring fair value of beneficial interests held in SPEs	Key economic assumptions used in measuring fair value of beneficial interests held in SPEs 6M21 2020 1 Other asset- 2 1 Other asset- 2 CHF million, except where indicated Fair value of beneficial interests 232 2,382 319 296 1,851 350 of which non-investment grade 38 330 18 36 631 23 Weighted-average life, in years 6.0 4.0 5.5 5.6 4.0 4.8 Prepayment speed assumption (rate per annum), in % 3 – 5.2 – 30.0 – – 4.0 – 50.1 – Impact on fair value from 10% adverse change – (40.0) – – (43.7) – Impact on fair value from 20% adverse change – (78.0) – – (92.1) – Cash flow discount rate (rate per annum), in % 4 1.7 – 31.5 0.7 – 29.7 0.3 – 28.0 0.6 – 38.2 0.3 – 39.7 0.7 – 27.7 Impact on fair value from 10% adverse change (2.9) (32.5) (3.7) (4.9) (22.4) (4.2) Impact on fair value from 20% adverse change (5.6) (62.7) (7.3) (9.6) (43.5) (8.2) Expected credit losses (rate per annum), in % 5 0.9 – 13.0 0.2 – 28.6 0.3 – 28.0 0.4 – 14.7 0.6 – 39.6 0.7 – 26.8 Impact on fair value from 10% adverse change (1.8) (25.9) (3.5) (4.3) (20.2) (4.5) Impact on fair value from 20% adverse change (3.5) (50.2) (6.8) (8.5) (39.2) (8.9) 1 To deter prepayment, commercial mortgage loans typically have prepayment protection in the form of prepayment lockouts and yield maintenances. 2 CDOs within this category are generally structured to be protected from prepayment risk. 3 PSA is an industry standard prepayment speed metric used for projecting prepayments over the life of a residential mortgage loan. PSA utilizes the CPR assumptions. A 100% prepayment assumption assumes a prepayment rate of 0.2% per annum of the outstanding principal balance of mortgage loans in the first month. This increases by 0.2 percentage points thereafter during the term of the mortgage loan, leveling off to a CPR of 6% per annum beginning in the 30th month and each month thereafter during the term of the mortgage loan. 100 PSA equals 6 CPR. 4 The rate was based on the weighted-average yield on the beneficial interests. 5 The range of expected credit losses only reflects instruments with an expected credit loss greater than zero unless all of the instruments have an expected credit loss of zero.
Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved	Carrying amounts of transferred financial assets and liabilities where sale treatment was not achieved end of 6M21 2020 CHF million Other asset-backed financings Trading assets 721 496 Other assets 198 246 Liability to SPE, included in other liabilities (919) (742)
Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral	Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by class of collateral pledged end of 6M21 2020 CHF billion Government debt securities 15.9 12.2 Corporate debt securities 8.6 7.7 Asset-backed securities 4.3 6.0 Other 3.0 1.8 Securities sold under repurchase agreements 31.8 27.7 Government debt securities 0.2 0.4 Corporate debt securities 0.3 0.1 Equity securities 3.3 3.5 Other 0.0 0.1 Securities lending transactions 3.8 4.1 Government debt securities 4.7 5.8 Corporate debt securities 4.4 5.6 Equity securities 29.4 39.3 Other 0.2 0.1 Obligation to return securities received as collateral, at fair value 38.7 50.8 Total 74.3 82.6 Securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral – by remaining contractual maturity Remaining contractual maturities No stated 1 Up to 2 31-90 More than 6M21 (CHF billion) Securities sold under repurchase agreements 3.4 16.5 2.6 9.3 31.8 Securities lending transactions 3.8 0.0 0.0 0.0 3.8 Obligation to return securities received as collateral, at fair value 38.6 0.0 0.0 0.1 38.7 Total 45.8 16.5 2.6 9.4 74.3 2020 (CHF billion) Securities sold under repurchase agreements 5.8 11.8 5.9 4.2 27.7 Securities lending transactions 4.0 0.0 0.1 0.0 4.1 Obligation to return securities received as collateral, at fair value 50.2 0.3 0.3 0.0 50.8 Total 60.0 12.1 6.3 4.2 82.6 1 Includes contracts with no contractual maturity that may contain termination arrangements subject to a notice period. 2 Includes overnight transactions.
Consolidated VIEs in which the Group was primary beneficiary	Consolidated VIEs in which the Bank was the primary beneficiary Financial intermediation CP Securi- 6M21 (CHF million) Cash and due from banks 0 39 16 21 171 247 Trading assets 0 1,068 54 788 6 1,916 Other investments 0 0 109 877 245 1,231 Net loans 603 0 61 22 0 686 Other assets 24 540 31 67 792 1,454 of which loans held-for-sale 0 57 26 0 0 83 of which premises and equipment 0 0 0 14 0 14 Total assets of consolidated VIEs 627 1,647 271 1,775 1,214 5,534 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 9 0 9 Short-term borrowings 4,700 29 0 0 0 4,729 Long-term debt 93 1,180 0 3 43 1,319 Other liabilities 70 1 4 72 84 231 Total liabilities of consolidated VIEs 4,863 1,210 4 84 128 6,289 2020 (CHF million) Cash and due from banks 0 23 22 37 8 90 Trading assets 0 1,255 50 840 19 2,164 Other investments 0 0 129 920 202 1,251 Net loans 653 0 51 29 167 900 Other assets 21 979 15 65 778 1,858 of which loans held-for-sale 0 462 10 0 0 472 of which premises and equipment 0 0 0 13 4 17 Total assets of consolidated VIEs 674 2,257 267 1,891 1,174 6,263 Customer deposits 0 0 0 0 1 1 Trading liabilities 0 0 0 10 0 10 Short-term borrowings 4,178 0 0 0 0 4,178 Long-term debt 0 1,701 0 10 35 1,746 Other liabilities 53 1 3 72 78 207 Total liabilities of consolidated VIEs 4,231 1,702 3 92 114 6,142
Non-consolidated VIEs	Non-consolidated VIEs Financial intermediation CDO/ CP 1 Securi- 6M21 (CHF million) Trading assets 257 0 4,480 920 24 7,930 13,611 Net loans 631 547 365 2,770 8,778 1,375 14,466 Other assets 7 0 302 174 0 546 1,029 Total variable interest assets 895 547 5,147 3,864 8,802 9,851 29,106 Maximum exposure to loss 1,532 5,966 7,887 3,864 13,568 10,593 43,410 Total assets of non-consolidated VIEs 11,001 12,544 106,170 162,600 37,131 25,776 355,222 2020 (CHF million) Trading assets 250 0 4,500 1,113 66 8,617 14,546 Net loans 357 371 734 1,967 6,989 939 11,357 Other assets 2 0 3 110 0 344 459 Total variable interest assets 609 371 5,237 3,190 7,055 9,900 26,362 Maximum exposure to loss 852 5,538 7,329 3,190 11,235 10,226 38,370 Total assets of non-consolidated VIEs 8,553 11,148 127,785 87,618 26,186 25,759 287,049 1 Includes liquidity facilities provided to third-party CP conduits through Alpine Securities Ltd.

Financial instruments (Tables)

Financial instruments (Tables)	6 Months Ended
	Jun. 30, 2021
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Assets and liabilities measured at fair value on a recurring basis 1 Assets 2 Assets (CHF million) Cash and due from banks 0 141 0 – – 141 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 69,465 0 – – 69,465 Securities received as collateral 33,337 5,265 84 – – 38,686 Trading assets 63,367 161,743 5,938 (101,348) 805 130,505 of which debt securities 11,267 44,628 1,655 – 70 57,620 of which foreign governments 10,885 11,376 40 – – 22,301 of which corporates 265 9,854 889 – 70 11,078 of which RMBS 0 20,528 477 – – 21,005 of which equity securities 41,037 2,172 282 – 735 44,226 of which derivatives 9,422 113,199 2,883 (101,348) – 24,156 of which interest rate products 1,212 55,831 805 – – – of which foreign exchange products 220 19,512 139 – – – of which equity/index-related products 7,941 32,473 490 – – – of which other derivatives 0 147 1,073 – – – of which other trading assets 1,641 1,744 1,118 – – 4,503 Investment securities 35 759 0 – – 794 Other investments 13 7 2,231 – 496 2,747 of which other equity investments 13 7 1,353 – 374 1,747 of which life finance instruments 0 0 877 – – 877 Loans 0 8,173 2,928 – – 11,101 of which commercial and industrial loans 0 1,712 1,411 – – 3,123 of which financial institutions 0 3,958 643 – – 4,601 Other intangible assets (mortgage servicing rights) 0 0 189 – – 189 Other assets 155 9,191 1,436 (440) – 10,342 of which failed purchases 126 1,590 12 – – 1,728 of which loans held-for-sale 0 6,433 1,287 – – 7,720 Total assets at fair value 96,907 254,744 12,806 (101,788) 1,301 263,970 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 330 0 – – 330 Customer deposits 0 3,489 432 – – 3,921 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 10,983 0 – – 10,983 Obligation to return securities received as collateral 33,337 5,265 84 – – 38,686 Trading liabilities 24,903 113,684 3,035 (108,650) – 32,972 of which debt securities 3,230 4,823 0 – – 8,053 of which foreign governments 3,131 1,002 0 – – 4,133 of which equity securities 12,134 141 41 – – 12,316 of which derivatives 9,539 108,720 2,994 (108,650) – 12,603 of which interest rate products 1,184 52,087 142 – – – of which foreign exchange products 176 20,973 62 – – – of which equity/index-related products 8,127 29,144 1,738 – – – Short-term borrowings 0 7,448 1,106 – – 8,554 Long-term debt 0 59,763 9,673 – – 69,436 of which structured notes over one year and up to two years 0 11,742 2,124 – – 13,866 of which structured notes over two years 0 24,088 6,777 – – 30,865 of which high-trigger instruments 0 11,080 0 – – 11,080 Other liabilities 90 7,557 535 (271) – 7,911 Total liabilities at fair value 58,330 208,519 14,865 (108,921) – 172,793 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Assets 2 Assets (CHF million) Cash and due from banks 0 525 0 – – 525 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 57,994 0 – – 57,994 Securities received as collateral 44,074 6,598 101 – – 50,773 Trading assets 87,710 181,166 7,535 (119,731) 658 157,338 of which debt securities 16,321 45,766 2,253 – 55 64,395 of which foreign governments 15,908 11,909 140 – – 27,957 of which corporates 353 9,799 1,270 – 55 11,477 of which RMBS 0 20,882 557 – – 21,439 of which equity securities 60,044 2,466 124 – 603 63,237 of which derivatives 9,297 132,054 3,911 (119,731) – 25,531 of which interest rate products 3,036 71,043 733 – – – of which foreign exchange products 42 24,259 143 – – – of which equity/index-related products 6,150 31,945 1,186 – – – of which other derivatives 22 110 1,079 – – – of which other trading assets 2,048 880 1,247 – – 4,175 Investment securities 2 605 0 – – 607 Other investments 13 6 3,054 – 721 3,794 of which other equity investments 13 6 2,132 – 608 2,759 of which life finance instruments 0 0 920 – – 920 Loans 0 7,739 3,669 – – 11,408 of which commercial and industrial loans 0 2,187 1,347 – – 3,534 of which financial institutions 0 3,506 1,082 – – 4,588 Other intangible assets (mortgage servicing rights) 0 0 180 – – 180 Other assets 137 7,315 1,825 (904) – 8,373 of which failed purchases 109 1,229 51 – – 1,389 of which loans held-for-sale 0 4,870 1,576 – – 6,446 Total assets at fair value 131,936 261,948 16,364 (120,635) 1,379 290,992 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 413 0 – – 413 Customer deposits 0 3,895 448 – – 4,343 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 13,594 0 – – 13,594 Obligation to return securities received as collateral 44,074 6,598 101 – – 50,773 Trading liabilities 33,544 137,947 4,246 (129,867) 1 45,871 of which equity securities 20,527 111 55 – 1 20,694 of which derivatives 10,536 132,885 4,191 (129,867) – 17,745 of which interest rate products 3,264 68,159 169 – – – of which foreign exchange products 51 28,819 72 – – – of which equity/index-related products 7,149 30,612 2,010 – – – of which credit derivatives 0 4,663 1,335 – – – Short-term borrowings 0 10,039 701 – – 10,740 Long-term debt 0 63,708 7,268 – – 70,976 of which structured notes over one year and up to two years 0 11,787 1,133 – – 12,920 of which structured notes over two years 0 28,330 5,526 – – 33,856 of which high-trigger instruments 0 10,586 0 – – 10,586 Other liabilities 0 6,678 1,271 (169) – 7,780 Total liabilities at fair value 77,618 242,872 14,035 (130,036) 1 204,490 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis for level 3 Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading assets 7,535 594 (1,635) 2,472 (2,976) 508 (1,119) 39 140 0 0 0 0 380 5,938 128 of which debt securities 2,253 296 (736) 1,859 (2,285) 0 0 (7) 138 0 0 0 0 137 1,655 103 of which corporates 1,270 137 (176) 1,403 (1,913) 0 0 (5) 95 0 0 0 0 78 889 99 of which derivatives 3,911 179 (856) 0 0 508 (1,033) 29 (30) 0 0 0 0 175 2,883 72 of which interest rate products 733 59 (81) 0 0 114 (59) 0 18 0 0 0 0 21 805 54 of which other derivatives 1,079 0 0 0 0 153 (157) 0 (55) 0 0 0 0 53 1,073 (60) of which other trading assets 1,247 22 (32) 493 (617) 0 (86) 10 21 0 0 0 0 60 1,118 (47) Other investments 3,054 3 (753) 20 (473) 0 0 0 (17) 0 318 0 0 79 2,231 43 of which other equity investments 2,132 0 (753) 3 (375) 0 0 0 (6) 0 318 0 0 34 1,353 52 of which life finance instruments 920 0 0 17 (94) 0 0 0 (11) 0 0 0 0 45 877 18 Loans 3,669 22 (533) 357 (73) 162 (946) 8 85 0 1 0 0 176 2,928 25 of which commercial and industrial loans 1,347 22 (12) 10 (31) 119 (184) 14 57 0 1 0 0 68 1,411 36 of which financial institutions 1,082 0 (222) 0 (42) 32 (296) 3 40 0 0 0 0 46 643 4 Other intangible assets (mortgage servicing rights) 180 0 0 22 0 0 0 0 0 0 (22) 0 0 9 189 (22) Other assets 1,825 164 (451) 2,500 (2,176) 77 (573) 13 (42) 0 0 0 0 99 1,436 (76) of which loans held-for-sale 1,576 164 (409) 2,469 (2,137) 77 (571) 11 19 0 0 0 0 88 1,287 (41) Total assets at fair value 16,364 783 (3,372) 5,435 (5,784) 747 (2,638) 60 166 0 297 0 0 748 12,806 98 Liabilities (CHF million) Customer deposits 448 0 0 0 0 0 0 0 (8) 0 0 0 (13) 5 432 10 Obligation to return securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading liabilities 4,246 584 (1,961) 80 (24) 710 (1,138) 152 169 0 0 0 0 217 3,035 779 of which derivatives 4,191 566 (1,961) 69 (4) 710 (1,138) 152 193 0 0 0 0 216 2,994 781 of which equity/index-related derivatives 2,010 427 (1,049) 0 0 350 (527) 151 265 0 0 0 0 111 1,738 529 Short-term borrowings 701 155 (207) 0 0 930 (608) (1) 95 0 0 0 0 41 1,106 67 Long-term debt 7,268 2,715 (2,046) 0 0 4,401 (3,119) 62 (4) 0 4 (3) (30) 425 9,673 210 of which structured notes over one year and up to two years 1,133 1,165 (732) 0 0 1,127 (771) 39 97 0 0 0 (1) 67 2,124 39 of which structured notes over two years 5,526 1,532 (1,287) 0 0 3,020 (2,227) 24 (109) 0 0 (2) (29) 329 6,777 (59) Other liabilities 1,271 7 (552) 24 (46) 59 (424) 8 (8) 107 38 0 0 51 535 2 Total liabilities at fair value 14,035 3,461 (4,766) 168 (156) 6,100 (5,289) 221 244 107 42 (3) (43) 744 14,865 1,068 Net assets/(liabilities) at fair value 2,329 (2,678) 1,394 5,267 (5,628) (5,353) 2,651 (161) (78) (107) 255 3 43 4 (2,059) (970) 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M21, changes in net unrealized gains/(losses) of CHF (1,011) Assets and liabilities measured at fair value on a recurring basis for level 3 (continued) Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading assets 7,885 2,489 (1,502) 4,272 (4,657) 1,290 (1,625) 169 796 (1) 0 0 0 (319) 8,797 1,076 of which debt securities 1,923 1,654 (708) 2,527 (2,000) 0 0 59 (122) 0 0 0 0 (135) 3,198 (19) of which corporates 1,128 559 (564) 1,718 (1,230) 0 0 67 42 0 0 0 0 (78) 1,642 96 of which RMBS 317 902 (70) 557 (525) 0 0 (4) (70) 0 0 0 0 (5) 1,102 (55) of which derivatives 3,534 719 (629) 0 0 1,290 (1,606) 111 834 (1) 0 0 0 (151) 4,101 999 of which equity/index-related products 1,040 220 (240) 0 0 345 (597) 35 345 0 0 0 0 (81) 1,067 361 of which credit derivatives 879 379 (305) 0 0 700 (771) 100 211 0 0 0 0 (21) 1,172 325 of which other derivatives 909 0 0 0 0 155 (165) 0 207 0 0 0 0 (21) 1,085 210 of which other trading assets 2,231 100 (144) 1,707 (2,639) 0 (19) (1) 151 0 0 0 0 (30) 1,356 11 Other investments 2,523 2 0 371 (107) 0 0 0 95 0 (19) 0 0 (26) 2,839 38 of which other equity investments 1,463 1 0 354 (19) 0 0 0 (11) 0 (18) 0 0 (5) 1,765 (35) of which life finance instruments 1,052 0 0 17 (88) 0 0 0 106 0 0 0 0 (21) 1,066 74 Loans 2 3,835 641 (375) 90 (479) 742 (569) 38 (336) 0 0 0 0 (74) 3,513 (296) of which commercial and industrial loans 2 1,401 390 (137) 45 (282) 447 (173) 3 (194) 0 0 0 0 (27) 1,473 (205) of which financial institutions 1,201 44 (94) 0 (32) 275 (211) 13 (70) 0 0 0 0 (26) 1,100 (77) Other intangible assets (mortgage servicing rights) 244 0 0 0 0 0 0 0 0 0 (31) 0 0 (4) 209 (31) Other assets 1,846 1,432 (383) 2,400 (2,260) 282 (543) 16 (60) 0 0 0 0 (149) 2,581 (6) of which loans held-for-sale 1,619 1,409 (339) 2,373 (2,259) 282 (543) (8) (87) 0 0 0 0 (143) 2,304 (87) Total assets at fair value 16,334 4,564 (2,260) 7,306 (7,504) 2,314 (2,737) 223 495 (1) (50) 0 0 (575) 18,109 781 Liabilities (CHF million) Customer deposits 474 0 0 0 0 0 (27) 0 35 0 0 0 (22) (27) 433 9 Obligation to return securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading liabilities 3,854 513 (904) 210 (195) 1,602 (1,276) 184 (151) (5) 0 0 0 (105) 3,727 577 of which derivatives 3,801 497 (904) 0 (3) 1,602 (1,276) 184 (136) (5) 0 0 0 (103) 3,657 575 of which equity/index-related derivatives 1,921 126 (493) 0 0 585 (486) 69 (262) 0 0 0 0 (59) 1,401 274 of which credit derivatives 1,211 333 (373) 0 0 896 (574) 117 (21) 0 0 0 0 (31) 1,558 135 Short-term borrowings 997 52 (200) 0 0 470 (706) (2) (118) 0 0 0 0 (13) 480 (40) Long-term debt 12,610 1,843 (5,514) 0 0 4,294 (3,614) 461 (1,241) 0 0 87 (166) (269) 8,491 (110) of which structured notes over one year and up to two years 891 186 (423) 0 0 632 (435) 28 (111) 0 0 1 5 (18) 756 (30) of which structured notes over two years 11,458 707 (5,077) 0 0 3,631 (3,140) 433 (1,138) 0 0 87 (170) (245) 6,546 (89) Other liabilities 1,385 168 (112) 195 (227) 64 (289) (27) (15) 0 86 0 0 (27) 1,201 43 Total liabilities at fair value 19,321 2,576 (6,730) 578 (423) 6,430 (5,912) 616 (1,490) (5) 86 87 (188) (444) 14,502 479 Net assets/(liabilities) at fair value (2,987) 1,988 4,470 6,728 (7,081) (4,116) 3,175 (393) 1,985 4 (136) (87) 188 (131) 3,607 302 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M20, changes in net unrealized gains/(losses) of CHF 289 million and CHF (36) 2 Includes an adjustment of CHF 118 million reflecting the impact of applying the fair value option on certain loans (previously held at amortized cost) at the adoption of the ASU 2019-05.
Quantitative information about level 3 assets and liabilities at fair value	Quantitative information about level 3 assets measured at fair value on a recurring basis Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading assets 5,938 of which debt securities 1,655 of which corporates 889 of which 172 Discounted cash flow Credit spread, in bp 40 973 1,928 Price, in % 0 100 28 Recovery rate, in % 1 1 0 of which 12 Market comparable Price, in % 0 100 63 of which 641 Option model Buyback probability, in % 50 100 73 Correlation, in % (85) 100 68 Credit spread, in bp (4) 105 81 Fund gap risk, in % 2 0 3 1 Volatility, in % 0 137 18 of which 5 Vendor price Price, in actuals 0 153 135 of which 55 Price Price, in % 32 116 86 of which derivatives 2,883 of which interest rate products 805 of which 7 Discounted cash flow Prepayment rate, in % 3 10 6 Volatility, in % 93 97 95 of which 756 Option model Correlation, in % 1 100 8 Mean reversion, in % 2 (55) (8) 0 Prepayment rate, in % 3 28 10 Volatility, in % (3) 1 0 of which other derivatives 1,073 Discounted cash flow Market implied life expectancy, in years 2 15 6 Mortality rate, in % 72 137 98 of which other trading assets 1,118 of which 728 Discounted cash flow Market implied life expectancy, in years 3 14 7 Tax swap rate, in % 30 30 30 of which 256 Market comparable Price, in % 0 125 28 of which 133 Option model Mortality rate, in % 0 70 6 Other investments 2,231 of which other equity investments 1,353 of which 974 Adjusted NAV Price, in actuals 310 310 310 of which 326 Price Price, in % 100 100 100 Price, in actuals 1 1,244 425 of which life finance instruments 877 Discounted cash flow Market implied life expectancy, in years 2 16 6 Loans 2,928 of which commercial and industrial loans 1,411 of which 724 Discounted cash flow Credit spread, in bp 146 2,014 589 of which 597 Price Credit spread, in bp 300 300 300 Price, in % 7 100 77 of which financial institutions 643 of which 529 Discounted cash flow Credit spread, in bp 164 1,615 622 of which 113 Price Price, in % 10 61 28 Other assets 1,436 of which loans held-for-sale 1,287 of which 354 Discounted cash flow Credit spread, in bp 279 932 325 of which 885 Market comparable Price, in % 0 152 81 of which 17 Price Price, in % 0 63 53 1 Weighted average is calculated based on the fair value of the instruments. 2 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 assets measured at fair value on a recurring basis (continued) Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading assets 7,535 of which debt securities 2,253 of which corporates 1,270 of which 386 Discounted cash flow Credit spread, in bp (9) 1,509 1,007 of which 321 Market comparable Price, in % 0 227 95 of which 416 Option model Correlation, in % (50) 100 55 Gap risk, in % 2 0 2 0 Recovery rate, in % 40 40 40 Volatility, in % 0 158 23 of which 71 Vendor price Price, in actuals 0 2,292 1,654 Unadjusted NAV, in actuals 1 1 1 of which derivatives 3,911 of which equity/index-related products 1,186 Option model Buyback probability, in % 50 100 66 Correlation, in % (50) 100 58 Gap risk, in % 2 0 4 0 Volatility, in % (2) 158 24 of which other derivatives 1,079 Discounted cash flow Market implied life expectancy, in years 2 14 6 Mortality rate, in % 72 137 98 of which other trading assets 1,247 of which 766 Discounted cash flow Market implied life expectancy, in years 3 14 7 Other investments 3,054 of which other equity investments 2,132 of which 840 Discounted cash flow Discount rate, in % 9 9 9 Terminal growth rate, in % 3 3 3 of which 118 Market comparable Price, in % 100 100 100 of which 974 Adjusted NAV Price, in actuals 310 310 310 of which 110 Vendor price Price, in actuals 1 1,249 713 of which life finance instruments 920 Discounted cash flow Market implied life expectancy, in years 2 15 6 Loans 3,669 of which commercial and industrial loans 1,347 of which 908 Discounted cash flow Credit spread, in bp 237 1,480 554 Recovery rate, in % 25 25 25 of which 338 Market comparable Price, in % 0 100 70 72 Option model Pre-IPO intrinsic option, in actuals 100 100 100 of which financial institutions 1,082 of which 674 Discounted cash flow Credit spread, in bp 192 1,698 612 Recovery rate, in % 25 40 25 of which 190 Market comparable Price, in % 0 100 54 Other assets 1,825 of which loans held-for-sale 1,576 of which 296 Discounted cash flow Credit spread, in bp 246 506 343 Recovery rate, in % 1 40 34 of which 1,277 Market comparable Price, in % 0 111 71 1 Weighted average is calculated based on the fair value of the instruments. 2 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 liabilities measured at fair value on a recurring basis Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading liabilities 3,035 of which derivatives 2,994 of which equity/index-related derivatives 1,738 of which 3 Market comparable Price, in actuals 0 34 30 of which 1,688 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 67 Dividend yield, in % 1 8 4 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % (3) 137 18 of which 46 Price Price, in actuals 0 1,636 1 Short-term borrowings 1,106 of which 44 Discounted cash flow Credit spread, in bp 104 1,036 788 of which 968 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 68 Fund gap risk, in % 3 0 3 1 Gap risk, in % 3 0 4 1 Volatility, in % 0 137 16 of which 12 Price Price, in % 59 59 59 Long-term debt 9,673 of which structured notes over one year and up to two years 2,124 of which 12 Discounted cash flow Credit spread, in bp 40 40 40 of which 2,110 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 69 Credit spread, in bp (4) 105 81 Fund gap risk, in % 3 0 3 1 Gap risk, in % 3 0 4 1 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % 0 137 18 of which structured notes over two years 6,777 of which 110 Discounted cash flow Credit spread, in bp 2 309 84 of which 6,521 Option model Buyback probability, in % 2 50 100 73 Correlation, in % (85) 100 68 Credit spread, in bp (4) 105 81 Fund gap risk, in % 3 0 3 1 Unadjusted NAV, in actuals 42 3,544 876 Volatility, in % 0 137 14 of which 12 Price Price, in % 4 26 21 1 Weighted average is calculated based on the fair value of the instruments. 2 Estimate of probability of structured notes being put back to the Group at the option of the investor over the remaining life of the financial instruments. 3 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. Quantitative information about level 3 liabilities measured at fair value on a recurring basis (continued) Valuation Unobservable Minimum Maximum Weighted 1 CHF million, except where indicated Trading liabilities 4,246 of which derivatives 4,191 of which equity/index-related derivatives 2,010 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 58 Volatility, in % (2) 158 27 of which credit derivatives 1,335 of which 738 Discounted cash flow Correlation, in % 37 45 44 Credit spread, in bp 0 1,468 391 Default rate, in % 0 7 3 Discount rate, in % 6 19 14 Funding spread, in bp 55 183 120 Loss severity, in % 0 100 68 Prepayment rate, in % 0 9 7 Recovery rate, in % 12 81 38 of which 520 Market comparable Price, in % 84 116 99 of which 12 Option model Correlation, in % 49 50 50 Credit spread, in bp 13 865 250 Short-term borrowings 701 of which 58 Discounted cash flow Credit spread, in bp (4) 992 722 Recovery rate, in % 35 40 39 of which 508 Option model Buyback probability, in % 50 100 66 Correlation, in % (50) 100 56 Fund gap risk, in % 3 0 2 0 Volatility, in % 3 158 30 Long-term debt 7,268 of which structured notes over one year and up to two years 1,133 of which 48 Discounted cash flow Credit spread, in bp 35 189 52 Recovery rate, in % 25 25 25 of which 1,051 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 55 Fund gap risk, in % 3 0 2 0 Gap risk, in % 0 4 1 Volatility, in % 0 158 24 of which structured notes over two years 5,526 of which 1,380 Discounted cash flow Credit spread, in bp (14) 481 58 Recovery rate, in % 23 40 38 of which 9 Market comparable Price, in % 27 46 27 of which 3,961 Option model Buyback probability, in % 2 50 100 66 Correlation, in % (50) 100 55 Gap risk, in % 3 0 2 0 Mean reversion, in % 4 (10) 0 (5) Volatility, in % 0 158 21 1 Weighted average is calculated based on the fair value of the instruments. 2 Estimate of probability of structured notes being put back to the Group at the option of the investor over the remaining life of the financial instruments. 3 Risk of unexpected large declines in the underlying values occurring between collateral settlement dates. 4 Management's best estimate of the speed at which interest rates will revert to the long-term average.
Own credit gains/(losses) on fair value option elected instruments recorded in AOCI	Gains/(losses) attributable to changes in instrument-specific credit risk 1 Gains/(losses) recorded 1 in 2Q21 Cumulative 2Q20 2Q21 2Q20 Financial instruments (CHF million) Customer deposits (1) (64) (15) 0 0 Short-term borrowings 3 (55) (24) 0 0 Long-term debt (518) (2,464) (3,150) 31 22 of which treasury debt over two years (523) (1,121) (1,632) 0 0 of which structured notes over two years (9) (1,252) (1,253) 31 22 Total (516) (2,583) (3,189) 31 22 1 Amounts are reflected gross of tax.
Fair Value, Option, Quantitative Disclosures [Table Text Block]	Difference between the aggregate fair value and unpaid principal balances of fair value option-elected financial instruments 2Q21 4Q20 Aggregate Aggregate Aggregate Aggregate Financial instruments (CHF million) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 69,465 69,314 151 57,994 57,895 99 Loans 11,101 11,804 (703) 11,408 12,079 (671) Other assets 1 9,448 12,122 (2,674) 7,834 10,090 (2,256) Due to banks and customer deposits (538) (471) (67) (578) (489) (89) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (10,983) (10,982) (1) (13,594) (13,578) (16) Short-term borrowings (8,554) (8,556) 2 (10,740) (10,632) (108) Long-term debt 2 (69,436) (71,204) 1,768 (70,976) (73,842) 2,866 Other liabilities (883) (1,844) 961 (616) (1,569) 953 Non-performing and non-interest-earning loans 3 591 3,543 (2,952) 543 3,364 (2,821) 1 Primarily loans held-for-sale. 2 Long-term debt includes both principal-protected and non-principal protected instruments. For non-principal-protected instruments, the original notional amount has been reported in the aggregate unpaid principal. 3 Included in loans or other assets. Gains and losses on financial instruments 6M21 6M20 Net Net Financial instruments (CHF million) Interest-bearing deposits with banks 18 1 1 1 of which related to credit risk 8 (6) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 306 1 789 1 Other investments 293 2 205 3 of which related to credit risk 0 1 Loans 277 1 (247) 3 of which related to credit risk 59 (575) Other assets 405 1 416 1 of which related to credit risk 173 (19) Due to banks and customer deposits (37) 3 (39) 3 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (29) 1 (82) 1 Short-term borrowings (406) 3 (16) 3 of which related to credit risk (1) 1 Long-term debt (3,802) 3 1,270 3 of which related to credit risk 0 14 Other liabilities 120 2 (102) 3 of which related to credit risk 67 (124) 1 Primarily recognized in net interest income. 2 Primarily recognized in other revenues. 3 Primarily recognized in trading revenues.
Fair Value, by Balance Sheet Grouping [Table Text Block]	Carrying value and fair value of financial instruments not carried at fair value Carrying end of Level 1 Level 2 Level 3 Total 2Q21 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 25,179 0 25,180 0 25,180 Loans 285,192 0 280,554 13,252 293,806 Other financial assets 1 161,682 145,446 16,030 288 161,764 Financial liabilities Due to banks and customer deposits 413,995 239,202 174,860 0 414,062 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 9,941 0 9,941 0 9,941 Short-term borrowings 13,813 0 13,813 0 13,813 Long-term debt 100,790 0 100,867 2,968 103,835 Other financial liabilities 2 14,389 0 13,950 406 14,356 4Q20 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 21,139 0 21,139 0 21,139 Loans 277,137 0 272,660 14,534 287,194 Other financial assets 1 155,266 138,672 16,315 303 155,290 Financial liabilities Due to banks and customer deposits 402,589 234,700 167,924 0 402,624 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 10,256 0 10,256 0 10,256 Short-term borrowings 10,128 0 10,128 0 10,128 Long-term debt 90,111 0 90,897 2,317 93,214 Other financial liabilities 2 16,012 0 15,567 412 15,979 1 Primarily includes cash and due from banks, interest-bearing deposits with banks, loans held-for-sale, cash collateral on derivative instruments, interest and fee receivables and non-marketable equity securities. 2 Primarily includes cash collateral on derivative instruments and interest and fee payables.
Bank
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Assets and liabilities measured at fair value on a recurring basis 1 Assets 2 Assets (CHF million) Cash and due from banks 0 141 0 – – 141 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 69,465 0 – – 69,465 Securities received as collateral 33,337 5,265 84 – – 38,686 Trading assets 63,427 161,961 5,938 (101,447) 805 130,684 of which debt securities 11,267 44,747 1,655 – 70 57,739 of which foreign government 10,885 11,376 40 – – 22,301 of which corporates 265 9,973 889 – 70 11,197 of which RMBS 0 20,528 477 – – 21,005 of which equity securities 41,098 2,172 282 – 735 44,287 of which derivatives 9,422 113,297 2,883 (101,447) – 24,155 of which interest rate products 1,212 55,930 805 – – – of which foreign exchange products 220 19,512 139 – – – of which equity/index-related products 7,941 32,473 490 – – – of which other derivatives 0 146 1,073 – – – of which other trading assets 1,640 1,745 1,118 – – 4,503 Investment securities 33 759 0 – – 792 Other investments 13 7 2,231 – 495 2,746 of which other equity investments 13 7 1,353 – 373 1,746 of which life finance instruments 0 0 877 – – 877 Loans 0 8,173 2,928 – – 11,101 of which commercial and industrial loans 0 1,712 1,411 – – 3,123 of which financial institutions 0 3,958 643 – – 4,601 Other intangible assets (mortgage servicing rights) 0 0 189 – – 189 Other assets 155 9,191 1,436 (440) – 10,342 of which failed purchases 126 1,590 12 – – 1,728 of which loans held-for-sale 0 6,433 1,287 – – 7,720 Total assets at fair value 96,965 254,962 12,806 (101,887) 1,300 264,146 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 330 0 – – 330 Customer deposits 0 3,489 432 – – 3,921 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 11,080 0 – – 11,080 Obligation to return securities received as collateral 33,337 5,265 84 – – 38,686 Trading liabilities 24,903 113,741 3,035 (108,708) – 32,971 of which debt securities 3,230 4,824 0 – – 8,054 of which foreign government 3,131 1,002 0 – – 4,133 of which equity securities 12,133 141 41 – – 12,315 of which derivatives 9,540 108,776 2,994 (108,708) – 12,602 of which interest rate products 1,184 52,145 142 – – – of which foreign exchange products 176 20,973 62 – – – of which equity/index-related products 8,127 29,143 1,738 – – – Short-term borrowings 0 7,448 1,106 – – 8,554 Long-term debt 0 58,813 9,673 – – 68,486 of which structured notes over one year and up to two years 0 11,742 2,124 – – 13,866 of which structured notes over two years 0 24,088 6,777 – – 30,865 of which high-trigger instruments 0 11,124 0 – – 11,124 Other liabilities 90 7,537 535 (271) – 7,891 Total liabilities at fair value 58,330 207,703 14,865 (108,979) – 171,919 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Assets 2 Assets (CHF million) Cash and due from banks 0 525 0 – – 525 Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 0 57,994 0 – – 57,994 Securities received as collateral 44,074 6,598 101 – – 50,773 Trading assets 87,746 181,303 7,535 (119,731) 658 157,511 of which debt securities 16,321 45,903 2,253 – 55 64,532 of which foreign government 15,908 11,909 140 – – 27,957 of which corporates 353 9,936 1,270 – 55 11,614 of which RMBS 0 20,882 557 – – 21,439 of which equity securities 60,080 2,466 124 – 603 63,273 of which derivatives 9,297 132,054 3,911 (119,731) – 25,531 of which interest rate products 3,036 71,043 733 – – – of which foreign exchange products 42 24,259 143 – – – of which equity/index-related products 6,150 31,945 1,186 – – – of which other derivatives 22 110 1,079 – – – of which other trading assets 2,048 880 1,247 – – 4,175 Investment securities 1 604 0 – – 605 Other investments 13 6 3,054 – 720 3,793 of which other equity investments 13 6 2,132 – 609 2,760 of which life finance instruments 0 0 920 – – 920 Loans 0 7,739 3,669 – – 11,408 of which commercial and industrial loans 0 2,187 1,347 – – 3,534 of which financial institutions 0 3,506 1,082 – – 4,588 Other intangible assets (mortgage servicing rights) 0 0 180 – – 180 Other assets 137 7,315 1,825 (904) – 8,373 of which failed purchases 109 1,229 51 – – 1,389 of which loans held-for-sale 0 4,870 1,576 – – 6,446 Total assets at fair value 131,971 262,084 16,364 (120,635) 1,378 291,162 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value Assets and liabilities measured at fair value on a recurring basis (continued) 1 Liabilities 2 Liabilities (CHF million) Due to banks 0 413 0 – – 413 Customer deposits 0 3,895 448 – – 4,343 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 0 13,688 0 – – 13,688 Obligation to return securities received as collateral 44,074 6,598 101 – – 50,773 Trading liabilities 33,543 138,018 4,246 (129,937) 1 45,871 of which equity securities 20,527 111 55 – 1 20,694 of which derivatives 10,535 132,956 4,191 (129,937) – 17,745 of which interest rate products 3,264 68,229 169 – – – of which foreign exchange products 51 28,819 72 – – – of which equity/index-related products 7,149 30,612 2,010 – – – of which credit derivatives 0 4,663 1,335 – – – Short-term borrowings 0 10,039 701 – – 10,740 Long-term debt 0 62,957 7,286 – – 70,243 of which structured notes over one year and up to two years 0 11,787 1,133 – – 12,920 of which structured notes over two years 0 28,330 5,526 – – 33,856 of which high-trigger instruments 0 10,627 0 – – 10,627 Other liabilities 0 6,675 1,250 (169) – 7,756 Total liabilities at fair value 77,617 242,283 14,032 (130,106) 1 203,827 1 Derivative contracts are reported on a gross basis by level. The impact of netting represents legally enforceable master netting agreements. 2 In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share practical expedient have not been classified in the fair value
Assets and liabilities measured at fair value on a recurring basis for level 3	Assets and liabilities measured at fair value on a recurring basis for level 3 Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading assets 7,535 594 (1,635) 2,472 (2,976) 508 (1,119) 39 140 0 0 0 0 380 5,938 128 of which debt securities 2,253 296 (736) 1,859 (2,285) 0 0 (7) 138 0 0 0 0 137 1,655 103 of which corporates 1,270 137 (176) 1,403 (1,913) 0 0 (5) 95 0 0 0 0 78 889 99 of which derivatives 3,911 179 (856) 0 0 508 (1,033) 29 (30) 0 0 0 0 175 2,883 72 of which interest rate products 733 59 (81) 0 0 114 (59) 0 18 0 0 0 0 21 805 54 of which other derivatives 1,079 0 0 0 0 153 (157) 0 (55) 0 0 0 0 53 1,073 (60) of which other trading assets 1,247 22 (32) 493 (617) 0 (86) 10 21 0 0 0 0 60 1,118 (47) Other investments 3,054 3 (753) 20 (473) 0 0 0 (17) 0 318 0 0 79 2,231 46 of which other equity investments 2,132 0 (753) 3 (375) 0 0 0 (6) 0 318 0 0 34 1,353 55 of which life finance instruments 920 0 0 17 (94) 0 0 0 (11) 0 0 0 0 45 877 18 Loans 2 3,669 22 (533) 357 (73) 162 (946) 8 85 0 1 0 0 176 2,928 25 of which commercial and industrial loans 2 1,347 22 (12) 10 (31) 119 (184) 14 57 0 1 0 0 68 1,411 36 of which financial institutions 1,082 0 (222) 0 (42) 32 (296) 3 40 0 0 0 0 46 643 4 Other intangible assets (mortgage servicing rights) 180 0 0 22 0 0 0 0 0 0 (22) 0 0 9 189 (22) Other assets 1,825 164 (451) 2,500 (2,176) 77 (573) 13 (42) 0 0 0 0 99 1,436 (76) of which loans held-for-sale 1,576 164 (409) 2,469 (2,137) 77 (571) 11 19 0 0 0 0 88 1,287 (41) Total assets at fair value 16,364 783 (3,372) 5,435 (5,784) 747 (2,638) 60 166 0 297 0 0 748 12,806 101 Liabilities (CHF million) Customer deposits 448 0 0 0 0 0 0 0 (8) 0 0 0 (13) 5 432 10 Obligation to return securities received as collateral 101 0 0 64 (86) 0 0 0 0 0 0 0 0 5 84 0 Trading liabilities 4,246 584 (1,961) 80 (24) 710 (1,138) 152 169 0 0 0 0 217 3,035 779 of which derivatives 4,191 566 (1,961) 69 (4) 710 (1,138) 152 193 0 0 0 0 216 2,994 781 of which equity/index-related derivatives 2,010 427 (1,049) 0 0 350 (527) 151 265 0 0 0 0 111 1,738 529 Short-term borrowings 701 155 (207) 0 0 930 (608) (1) 95 0 0 0 0 41 1,106 67 Long-term debt 7,286 2,697 (2,046) 0 0 4,401 (3,119) 62 (8) 0 0 (3) (30) 433 9,673 203 of which structured notes over one year and up to two years 1,133 1,165 (732) 0 0 1,127 (771) 39 97 0 0 0 (1) 67 2,124 39 of which structured notes over two years 5,526 1,532 (1,287) 0 0 3,020 (2,227) 24 (109) 0 0 (2) (29) 329 6,777 (59) Other liabilities 1,250 7 (533) 24 (46) 59 (416) 8 (8) 102 38 0 0 50 535 2 Total liabilities at fair value 14,032 3,443 (4,747) 168 (156) 6,100 (5,281) 221 240 102 38 (3) (43) 751 14,865 1,061 Net assets/(liabilities) at fair value 2,332 (2,660) 1,375 5,267 (5,628) (5,353) 2,643 (161) (74) (102) 259 3 43 (3) (2,059) (960) 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues or accumulated other comprehensive income. As of 6M21, changes in net unrealized gains/(losses) of CHF (1,003) Assets and liabilities measured at fair value on a recurring basis for level 3 (continued) Accumulated other Foreign 1 Assets (CHF million) Securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading assets 7,885 2,489 (1,502) 4,272 (4,657) 1,290 (1,625) 169 796 (1) 0 0 0 (319) 8,797 1,076 of which debt securities 1,923 1,654 (708) 2,527 (2,000) 0 0 59 (122) 0 0 0 0 (135) 3,198 (19) of which corporates 1,128 559 (564) 1,718 (1,230) 0 0 67 42 0 0 0 0 (78) 1,642 96 of which RMBS 317 902 (70) 557 (525) 0 0 (4) (70) 0 0 0 0 (5) 1,102 (55) of which derivatives 3,534 719 (629) 0 0 1,290 (1,606) 111 834 (1) 0 0 0 (151) 4,101 999 of which equity/index-related products 1,040 220 (240) 0 0 345 (597) 35 345 0 0 0 0 (81) 1,067 361 of which credit derivatives 879 379 (305) 0 0 700 (771) 100 211 0 0 0 0 (21) 1,172 325 of which other derivatives 909 0 0 0 0 155 (165) 0 207 0 0 0 0 (21) 1,085 210 of which other trading assets 2,231 100 (144) 1,707 (2,639) 0 (19) (1) 151 0 0 0 0 (30) 1,356 11 Other investments 2,523 2 0 371 (107) 0 0 0 95 0 (19) 0 0 (26) 2,839 38 of which other equity investments 1,463 1 0 354 (19) 0 0 0 (11) 0 (18) 0 0 (5) 1,765 (35) of which life finance instruments 1,052 0 0 17 (88) 0 0 0 106 0 0 0 0 (21) 1,066 74 Loans 2 3,835 641 (375) 90 (479) 742 (569) 38 (336) 0 0 0 0 (74) 3,513 (296) of which commercial and industrial loans 2 1,402 390 (137) 45 (282) 447 (173) 3 (194) 0 0 0 0 (28) 1,473 (205) of which financial institutions 1,201 44 (94) 0 (32) 275 (211) 13 (70) 0 0 0 0 (26) 1,100 (77) Other intangible assets (mortgage servicing rights) 244 0 0 0 0 0 0 0 0 0 (31) 0 0 (4) 209 (31) Other assets 1,846 1,432 (383) 2,400 (2,260) 282 (543) 16 (60) 0 0 0 0 (149) 2,581 (6) of which loans held-for-sale 1,619 1,409 (339) 2,373 (2,259) 282 (543) (8) (87) 0 0 0 0 (143) 2,304 (87) Total assets at fair value 16,334 4,564 (2,260) 7,306 (7,504) 2,314 (2,737) 223 495 (1) (50) 0 0 (575) 18,109 781 Liabilities (CHF million) Customer deposits 474 0 0 0 0 0 (27) 0 35 0 0 0 (22) (27) 433 9 Obligation to return securities received as collateral 1 0 0 173 (1) 0 0 0 0 0 0 0 0 (3) 170 0 Trading liabilities 3,854 513 (904) 210 (195) 1,602 (1,276) 184 (151) (5) 0 0 0 (105) 3,727 577 of which derivatives 3,801 497 (904) 0 (3) 1,602 (1,276) 184 (136) (5) 0 0 0 (103) 3,657 575 of which equity/index-related derivatives 1,921 126 (493) 0 0 585 (486) 69 (262) 0 0 0 0 (59) 1,401 274 of which credit derivatives 1,211 333 (373) 0 0 896 (574) 117 (21) 0 0 0 0 (31) 1,558 135 Short-term borrowings 997 52 (200) 0 0 470 (706) (2) (118) 0 0 0 0 (13) 480 (40) Long-term debt 12,749 1,720 (5,514) 0 0 4,294 (3,614) 461 (1,241) 0 0 87 (165) (272) 8,505 (107) of which structured notes over one year and up to two years 891 186 (423) 0 0 632 (435) 28 (111) 0 0 1 5 (18) 756 (30) of which structured notes over two years 11,458 707 (5,077) 0 0 3,631 (3,140) 433 (1,138) 0 0 87 (170) (245) 6,546 (89) Other liabilities 1,367 168 (112) 195 (227) 64 (283) (27) (17) 0 84 0 0 (27) 1,185 44 Total liabilities at fair value 19,442 2,453 (6,730) 578 (423) 6,430 (5,906) 616 (1,492) (5) 84 87 (187) (447) 14,500 483 Net assets/(liabilities) at fair value (3,108) 2,111 4,470 6,728 (7,081) (4,116) 3,169 (393) 1,987 4 (134) (87) 187 (128) 3,609 298 1 Changes in unrealized gains/(losses) on total assets at fair value and changes in unrealized (gains)/losses on total liabilities at fair value relating to assets and liabilities held at period end are included in net revenues. As of 6M20, changes in net unrealized gains/(losses) of CHF 284 million and CHF (36) 2 Includes an adjustment of CHF 119 million reflecting the impact of applying the fair value option on certain loans (previously held at amortized cost) at the adoption of the ASU 2019-05.
Own credit gains/(losses) on fair value option elected instruments recorded in AOCI	Gains/(losses) attributable to changes in investment-specific credit risk 1 Gains/(losses) recorded 1 in 6M21 Cumulative 6M20 6M21 6M20 Financial instruments (CHF million) Customer deposits 13 (64) 23 0 0 Short-term borrowings 13 (55) (22) 0 0 Long-term debt (21) (2,397) 1,723 77 99 of which treasury debt over two years (321) (1,044) 1,306 0 0 of which structured notes over two years 269 (1,262) 300 77 99 Total 5 (2,516) 1,724 77 99 1 Amounts are reflected gross of tax.
Fair Value, Option, Quantitative Disclosures [Table Text Block]	Difference between the fair value and the unpaid principal balances of fair value option-elected financial instruments 6M21 2020 Aggregate Aggregate Aggregate Aggregate Financial instruments (CHF million) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 69,465 69,314 151 57,994 57,895 99 Loans 11,101 11,804 (703) 11,408 12,079 (671) Other assets 1 9,448 12,122 (2,674) 7,834 10,090 (2,256) Due to banks and customer deposits (538) (471) (67) (578) (489) (89) Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (11,080) (11,079) (1) (13,688) (13,672) (16) Short-term borrowings (8,554) (8,556) 2 (10,740) (10,632) (108) Long-term debt 2 (68,486) (70,327) 1,841 (70,243) (73,175) 2,932 Other liabilities (883) (1,844) 961 (616) (1,569) 953 Non-performing and non-interest-earning loans 3 591 3,543 (2,952) 543 3,364 (2,821) 1 Primarily loans held-for-sale. 2 Long-term debt includes both principal-protected and non-principal protected instruments. For non-principal-protected instruments, the original notional amount has been reported in the aggregate unpaid principal. 3 Included in loans or other assets. Gains and losses on financial instruments 6M21 6M20 Net Net Financial instruments (CHF million) Interest-bearing deposits with banks 18 1 1 1 of which related to credit risk 8 (6) Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 306 1 789 1 Other investments 293 2 205 3 of which related to credit risk 0 1 Loans 277 1 (247) 3 of which related to credit risk 59 (575) Other assets 405 1 416 1 of which related to credit risk 173 (19) Due to banks and customer deposits (37) 3 (39) 3 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions (29) 1 (82) 1 Short-term borrowings (406) 3 (16) 3 of which related to credit risk (1) 1 Long-term debt (3,347) 3 1,842 3 of which related to credit risk 0 14 Other liabilities 120 2 (102) 3 of which related to credit risk 67 (124) 1 Primarily recognized in net interest income. 2 Primarily recognized in other revenues. 3 Primarily recognized in trading revenues.
Fair Value, by Balance Sheet Grouping [Table Text Block]	Carrying value and fair value of financial instruments not carried at fair value Carrying end of Level 1 Level 2 Level 3 Total 6M21 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 25,179 0 25,180 0 25,180 Loans 293,508 0 288,871 13,252 302,123 Other financial assets 1 160,724 144,457 16,058 273 160,788 Financial liabilities Due to banks and customer deposits 415,020 239,969 175,118 0 415,087 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 9,941 0 9,941 0 9,941 Short-term borrowings 17,665 0 17,666 0 17,666 Long-term debt 95,807 0 95,840 2,955 98,795 Other financial liabilities 2 14,484 0 14,069 382 14,451 2020 (CHF million) Financial assets Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions 21,139 0 21,139 0 21,139 Loans 285,570 0 281,097 14,534 295,631 Other financial assets 1 154,441 137,763 16,399 302 154,464 Financial liabilities Due to banks and customer deposits 403,704 235,477 168,262 0 403,739 Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions 10,256 0 10,256 0 10,256 Short-term borrowings 10,568 0 10,569 0 10,569 Long-term debt 90,035 0 90,716 2,317 93,033 Other financial liabilities 2 16,131 0 15,694 403 16,097 1 Primarily includes cash and due from banks, interest-bearing deposits with banks, loans held-for-sale, cash collateral on derivative instruments, interest and fee receivables and non-marketable equity securities. 2 Primarily includes cash collateral on derivative instruments and interest and fee payables.

Assets pledged and collateral (

Assets pledged and collateral (Tables)	6 Months Ended
	Jun. 30, 2021
Assets pledged and collateral	Assets pledged end of 2Q21 4Q20 CHF million Total assets pledged or assigned as collateral 116,523 144,355 of which encumbered 55,154 82,950 1 1 Prior period has been corrected.
Fair value of collateral received with the right to sell or repledge	Collateral end of 2Q21 4Q20 1 CHF million Fair value of collateral received with the right to sell or repledge 370,803 385,515 of which sold or repledged 135,894 158,567 1 Prior period has been corrected.
Bank
Assets pledged and collateral	Assets pledged end of 6M21 2020 CHF million Total assets pledged or assigned as collateral 116,523 144,355 of which encumbered 55,154 82,950 1 1 Prior period has been corrected.
Fair value of collateral received with the right to sell or repledge	Collateral end of 6M21 2020 1 CHF million Fair value of collateral received with the right to sell or repledge 370,803 385,515 of which sold or repledged 135,894 158,567 1 Prior period has been corrected.

Recently issued accounting st_2

Recently issued accounting standards (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Accounting change
Retained Earnings (Accumulated Deficit)	SFr 32,715	SFr 32,582		SFr 32,715		SFr 32,834
Accumulated Other Comprehensive Income (Loss), Net of Tax	(21,697)	(20,667)		(21,697)		(23,150)
Net revenues	5,103	7,574	SFr 6,194	12,677	SFr 11,970
Total operating expenses	4,315	3,937	4,347	8,252	8,354
Compensation and benefits	2,356	2,207	2,594	4,563	4,910
General and administrative expenses	1,589	1,376	SFr 1,440	2,965	2,786
Assets and Liabilities, Lessee [Abstract]
Operating Lease, Liability	2,652	SFr 2,740		2,652		2,759
Bank
Accounting change
Retained Earnings (Accumulated Deficit)	15,973			15,973		15,871
Accumulated Other Comprehensive Income (Loss), Net of Tax	(18,922)			(18,922)		(20,239)
Net revenues				12,882	12,015
Total operating expenses				8,494	8,573
Compensation and benefits				4,096	4,420
General and administrative expenses				3,664	SFr 3,495
Assets and Liabilities, Lessee [Abstract]
Operating Lease, Liability	SFr 1,896			SFr 1,896		SFr 1,981

Recently issued accounting st_3

Recently issued accounting standards (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Interest-bearing deposits with banks	SFr 1,313	SFr 1,447	SFr 1,298
Loans Receivable, Fair Value Disclosure	11,101	11,827	11,408
Financing Receivable and Fair value Loans, Net Reported amount	299,844	304,188	291,908
Financing Receivable, before Allowance for Credit Loss and Fee	290,249	293,992	282,131
Other Assets	42,171	48,902	39,637
Liabilities [Abstract]
Other Liabilities	29,071	31,703	31,434
Other Liabilities, Fair Value Disclosure	7,911	7,913	7,780
Off-Balance Sheet, Credit Loss, Liability	260	324	311
Retained Earnings (Accumulated Deficit)	32,715	SFr 32,582	32,834
Bank
Assets [Abstract]
Interest-bearing deposits with banks	1,245		1,230
Loans Receivable, Fair Value Disclosure	11,101		11,408
Financing Receivable and Fair value Loans, Net Reported amount	308,159		300,341
Financing Receivable, before Allowance for Credit Loss and Fee	298,563		290,563
Other Assets	38,779		36,574
Liabilities [Abstract]
Other Liabilities	27,935		30,340
Other Liabilities, Fair Value Disclosure	7,891		7,756
Off-Balance Sheet, Credit Loss, Liability	260		311
Retained Earnings (Accumulated Deficit)	SFr 15,973		SFr 15,871

Business developments (Details)

Business developments (Details) - CHF (SFr) SFr in Millions		3 Months Ended			6 Months Ended		12 Months Ended
		Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Business Acquisition
Issued shares (in shares)		2,650,747,720	2,447,747,720	2,556,011,720	2,650,747,720	2,556,011,720	2,447,747,720	2,556,011,720	2,556,011,720
Other Revenue, Other Investments		SFr 131	SFr 199	SFr 223	SFr 330	SFr 451
Bank
Business Acquisition
Issued shares (in shares)	[1]	4,399,680,200			4,399,680,200		4,399,680,200
Other Revenue, Other Investments					SFr 332	SFr 451
York Capital Management
Business Acquisition
Other Revenue, Other Investments							SFr (414)
[1]	The Bank's total share capital is fully paid and consists of 4,399,680,200 registered shares as of June 30, 2021. Each share is entitled to one vote. The Bank has no warrants on its own shares outstanding.

Business developments - Share t

Business developments - Share transactions (Details 2) - CHF (SFr)	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Additional share information
Issuance of common shares	203,000,000	0	0	203,000,000	0
Issued shares (in shares)	2,650,747,720	2,447,747,720	2,556,011,720	2,650,747,720	2,556,011,720	2,447,747,720	2,556,011,720	2,556,011,720
Mandatory convertible notes (MCNs) [Member]
Additional share information
Common Stock, Terms of Conversion	On April 22, 2021, the Group announced that it placed two series of mandatory convertible notes (MCNs), Series A MCNs and Series B MCNs, which will be convertible into 100 million shares and 103 million shares of Credit Suisse Group AG, respectively. The MCNs settled on May 12, 2021. The aggregate principal amount of Series A MCNs issued was CHF 865 million and the aggregate principal amount of Series B MCNs issued was CHF 891 million. The shares of Credit Suisse Group AG underlying the Series A MCNs were issued from Credit Suisse Group AG’s conditional capital. The shares of Credit Suisse Group AG underlying the Series B MCNs were issued from Credit Suisse Group AG’s authorized capital. As of the end of 2Q21, MCNs with a principal value of CHF 924,000 have been early converted into 106,805 shares of Credit Suisse Group AG. The remaining shares of Credit Suisse Group AG are held by Credit Suisse Group (Guernsey) VII Limited, the issuing entity of the MCNs for delivery to holders of MCNs upon conversion of the MCNs.
Stock Issued During Period, Value, Conversion of Convertible Securities	SFr 924,000
Issued shares (in shares)	106,805			106,805
Series A MCNs [Member]
Additional share information
Issuance of common shares	100,000,000
MCNs principal amount	SFr 865,000,000			SFr 865,000,000
Series B MCNs [Member]
Additional share information
Issuance of common shares	103,000,000
MCNs principal amount	SFr 891,000,000			SFr 891,000,000

Business developments - Busines

Business developments - Business developments (Details 5) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Subsidiary, Sale of Stock [Line Items]
Net revenues	SFr 5,103	SFr 7,574	SFr 6,194	SFr 12,677	SFr 11,970
Total operating expenses	SFr 4,315	SFr 3,937	SFr 4,347	SFr 8,252	SFr 8,354
Allfunds Group [Member]
Subsidiary, Sale of Stock [Line Items]
Sale of Stock, Description of Transaction	As previously disclosed, during 2019 and 2020 Credit Suisse held an equity investment in Allfunds Group following the transfer of the Group’s open architecture investment fund platform Credit Suisse InvestLab AG to Allfunds Group. On April 23, 2021, Allfunds Group announced a successful IPO on the Euronext Amsterdam exchange with an initial market capitalization of EUR 7.24 billion on the day of the listing. Following the IPO, the Group holds an equity interest in Allfunds Group of 9.4%, which has been reclassified to trading assets from other investments. Net revenues included a gain of CHF 317 million reflecting the share price development after the IPO as well as the reduction of our equity interest from 14.0% to 9.4%. Operating expenses included CHF 19 million of costs directly related to the IPO of Allfunds Group.
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	9.40%	14.00%
Net revenues	SFr 317
Total operating expenses	SFr 19

Business developments (Details

Business developments (Details 6) SFr in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021CHF (SFr)	Mar. 31, 2021CHF (SFr)	Jun. 30, 2020CHF (SFr)	Jun. 30, 2021CHF (SFr)	Jun. 30, 2020CHF (SFr)	Jun. 30, 2021USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020CHF (SFr)
Business developments [Line Items]
Other financial assets held at amortized cost	SFr 56	SFr 4,434	SFr 21	SFr 4,490	SFr 36
Trading revenues	153	1,811	1,254	1,964	2,181
Total operating expenses	4,315	3,937	4,347	8,252	8,354
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	813	(757)	SFr 1,551	56	SFr 2,752
Loans	SFr 11,101	11,827		11,101				SFr 11,408
Archegos Capital Management [Member]
Business developments [Line Items]
Business development, Description	As previously reported, the Group recorded a provision for credit losses of CHF 4,430 million in 1Q21 in respect of the failure by Archegos to meet its margin commitments. Certain Group subsidiaries were notified by the fund that it would be unable to return margin advances previously extended and recognized as collateral receivable by the Group. Following the failure of the fund, the Group initiated the process of exiting the fund positions and that process is now complete. Losses related to the exiting of fund positions that were in excess of the margin advances previously extended and recognized as collateral receivable were included in trading revenues. The Group has incurred additional losses with regard to this matter in 2Q21 of CHF 594 million, consisting of CHF 493 million of trading losses as a result of market movements during the process of closing out the fund positions, a provision for credit losses of CHF 70 million and operating expenses of CHF 31 million mainly reflecting severance-related costs and professional services fees.
Other financial assets held at amortized cost	SFr 70	SFr 4,430		SFr 4,500
Trading revenues	493
Total operating expenses	31
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	SFr 594
Greensill Capital [Member]
Business developments [Line Items]
Business development, Description	As previously reported, in early March 2021, the boards of four supply chain finance funds managed by certain Group subsidiaries (collectively, the SCFFs) decided to suspend redemptions and subscriptions of those funds, to protect the interests of the funds’ investors, to terminate the SCFFs and to proceed to their liquidation. Credit Suisse Asset Management (Schweiz) AG (CSAM) acts as the portfolio manager of the SCFFs. The assets held by the SCFFs largely consist of notes backed by existing and future receivables. These notes were originated and structured by Greensill Capital (UK) Limited or one of its affiliates (Greensill Capital). Greensill Capital filed for insolvency in the UK on March 8, 2021, and the portfolio manager is working closely with the administrators of Greensill Capital, Grant Thornton, and with other parties to facilitate the liquidation of the SCFFs. The last published net asset value of the SCFFs in late February 2021 was approximately USD 10 billion in the aggregate. To date, together with the cash already distributed to investors and cash remaining in the funds, total cash collected in the SCFFs amounts to approximately USD 6.6 billion including the cash position in the funds at the time of suspension. Redemption payments totaling approximately USD 5.5 billion have been made to their investors in three cash distributions, and a fourth cash distribution of approximately USD 0.4 billion, which would bring the total amount returned to investors to approximately USD 5.9 billion. The portfolio manager continues to work to liquidate the remaining assets of the SCFFs, including by engaging directly with potentially delinquent obligors and other creditors as appropriate. However, there remains considerable uncertainty regarding the valuation of a significant part of the remaining assets, including the fact that certain of the notes underlying the funds were not paid when they fell due and the portfolio manager has been informed that further notes will not be paid when they fall due in the future. It therefore can be assumed that the investors of the SCFFs will suffer a loss. CSAM intends to take all necessary steps to collect outstanding amounts from debtors and insurers, but can give no assurance as to the final amount that may be recovered for the SCFFs under such notes. The amount of loss of the investors therefore is currently unknown. Based on currently available information, losses for the investors can be expected to occur predominantly in positions that, prior to March 31, 2021, had a net asset value of approximately USD 2.3 billion in the aggregate. These positions relate primarily to three groups of companies: “GFG Alliance”, Katerra and Bluestone. For these three focus areas, more time is required to assess the situation accurately. CSAM continues to invest substantial efforts to maximize and expedite recovery in these positions, including pursuing consensual restructuring in addition to preparing insurance claims and seeking legal enforcement of the funds’ claims where appropriate. Given the complexity of the situation and negotiations, any predictions on recovery rates for these focus areas would be premature. The Group continues to analyze this matter, including with the assistance of external counsel and other experts. The Board has initiated an externally-led investigation of this matter, which is being supervised by a special committee of the Board. Redemptions and subscriptions of certain other funds managed by CSAM or CSAM subsidiaries that invested in part in the SCFFs were also suspended in early March 2021. The illiquid part of these funds’ assets was subsequently separated into a separate share class to allow for subscriptions and redemptions of the original share classes, reflecting the liquid part of the funds’ assets, to resume as of April 7, 2021. The separate share class reflecting the illiquid assets is in the process of being liquidated, and shareholders receive pro rata payments of the redemption proceeds. With respect to the Group’s outstanding collateralized bridge loan of USD 90 million to Greensill Capital, the Group has marked its fair value down to USD 56 million as of the end of 2Q21, down from USD 60 million as of the end of 1Q21. > Refer to “Risk factor” in I – Credit Suisse results – Credit Suisse in the Credit Suisse Financial Report 1Q21 for further information on risks that may arise in relation to this matter.
Loans | $						$ 56	$ 60
Principal amount outstanding | $						$ 90

Segment information - Income st

Segment information - Income statement related (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information
Net revenues	SFr 5,103	SFr 7,574	SFr 6,194	SFr 12,677	SFr 11,970
Income/(loss) before taxes	813	(757)	1,551	56	2,752
Operating Segments [Member] | Swiss Universal Bank
Segment Reporting Information
Net revenues	1,477	1,449	1,474	2,926	2,928
Income/(loss) before taxes	725	665	656	1,390	1,187
Operating Segments [Member] | International Wealth Management
Segment Reporting Information
Net revenues	930	987	905	1,917	1,937
Income/(loss) before taxes	340	408	256	748	601
Operating Segments [Member] | Asia Pacific
Segment Reporting Information
Net revenues	798	1,060	808	1,858	1,643
Income/(loss) before taxes	250	524	196	774	414
Operating Segments [Member] | Investment Bank
Segment Reporting Information
Net revenues	1,610	3,543	2,862	5,153	4,942
Income/(loss) before taxes	(76)	(2,467)	912	(2,543)	995
Operating Segments [Member] | Asset Management
Segment Reporting Information
Net revenues	404	386	361	790	806
Income/(loss) before taxes	104	115	84	219	248
Corporate Center
Segment Reporting Information
Net revenues	(116)	149	(216)	33	(286)
Income/(loss) before taxes	SFr (530)	SFr (2)	SFr (553)	(532)	(693)
Bank
Segment Reporting Information
Net revenues				12,882	12,015
Income/(loss) before taxes				15	2,582
Bank | Operating Segments [Member] | Swiss Universal Bank
Segment Reporting Information
Net revenues				2,926	2,928
Income/(loss) before taxes				1,390	1,187
Bank | Operating Segments [Member] | International Wealth Management
Segment Reporting Information
Net revenues				1,917	1,937
Income/(loss) before taxes				748	601
Bank | Operating Segments [Member] | Asia Pacific
Segment Reporting Information
Net revenues				1,858	1,643
Income/(loss) before taxes				774	414
Bank | Operating Segments [Member] | Investment Bank
Segment Reporting Information
Net revenues				5,153	4,942
Income/(loss) before taxes				(2,543)	995
Bank | Operating Segments [Member] | Asset Management
Segment Reporting Information
Net revenues				790	806
Income/(loss) before taxes				219	248
Bank | Adjustments
Segment Reporting Information
Net revenues				238	(241)
Income/(loss) before taxes				SFr (573)	SFr (863)

Segment information - Balance s

Segment information - Balance sheet related (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information
Total assets	SFr 796,799	SFr 851,395	SFr 805,822
Operating Segments | Swiss Universal Bank
Segment Reporting Information
Total assets	265,801	269,089	261,465
Operating Segments | International Wealth Management
Segment Reporting Information
Total assets	91,957	90,300	91,503
Operating Segments | Asia Pacific
Segment Reporting Information
Total assets	70,569	74,878	67,356
Operating Segments | Investment Bank
Segment Reporting Information
Total assets	248,775	292,843	270,488
Operating Segments | Asset Management
Segment Reporting Information
Total assets	3,591	3,941	3,703
Corporate Center
Segment Reporting Information
Total assets	116,106	SFr 120,344	111,307
Bank
Segment Reporting Information
Total assets	800,120		809,688
Bank | Operating Segments | Swiss Universal Bank
Segment Reporting Information
Total assets	265,801		261,465
Bank | Operating Segments | International Wealth Management
Segment Reporting Information
Total assets	91,957		91,503
Bank | Operating Segments | Asia Pacific
Segment Reporting Information
Total assets	70,569		67,356
Bank | Operating Segments | Investment Bank
Segment Reporting Information
Total assets	248,775		270,488
Bank | Operating Segments | Asset Management
Segment Reporting Information
Total assets	3,591		3,703
Bank | Adjustments
Segment Reporting Information
Total assets	SFr 119,427		SFr 115,173

Net interest income (Details)

Net interest income (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net interest income
Loans	SFr 1,277	SFr 1,265	SFr 1,488	SFr 2,542	SFr 3,130
Investment securities	0	0	2	0	3
Trading assets	1,109	1,314	1,566	2,423	3,231
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	311	341	391	652	936
Other	182	135	142	317	584
Interest and dividend income	2,879	3,055	3,589	5,934	7,884
Deposits	(38)	(51)	(299)	(89)	(860)
Short-term borrowings	(40)	(2)	(76)	(42)	(152)
Trading liabilities	(453)	(468)	(717)	(921)	(1,473)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(209)	(276)	(211)	(485)	(505)
Long-term debt	(660)	(543)	(657)	(1,203)	(1,541)
Other	(63)	(61)	(59)	(124)	(249)
Interest expense	(1,463)	(1,401)	(2,019)	(2,864)	(4,780)
Net interest income	SFr 1,416	SFr 1,654	SFr 1,570	3,070	3,104
Bank
Net interest income
Loans				2,514	3,113
Investment securities				0	3
Trading assets				2,424	3,231
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions				652	936
Other				318	584
Interest and dividend income				5,908	7,867
Deposits				(84)	(857)
Short-term borrowings				1	(155)
Trading liabilities				(921)	(1,473)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions				(485)	(505)
Long-term debt				(1,182)	(1,522)
Other				(124)	(251)
Interest expense				(2,795)	(4,763)
Net interest income				SFr 3,113	SFr 3,104

Commissions and fees (Details)

Commissions and fees (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Commissions and fees
Commissions and fees	SFr 3,158	SFr 3,737	SFr 2,880	SFr 6,895	SFr 5,807
Lending business
Commissions and fees
Commissions and fees	484	516	361	1,000	797
Investment and portfolio management
Commissions and fees
Commissions and fees	891	861	752	1,752	1,562
Other securities business
Commissions and fees
Commissions and fees	15	13	18	28	36
Fiduciary business
Commissions and fees
Commissions and fees	906	874	770	1,780	1,598
Underwriting
Commissions and fees
Commissions and fees	626	989	560	1,615	924
Brokerage
Commissions and fees
Commissions and fees	694	909	806	1,603	1,773
Underwriting and brokerage
Commissions and fees
Commissions and fees	1,320	1,898	1,366	3,218	2,697
Other services
Commissions and fees
Commissions and fees	SFr 448	SFr 449	SFr 383	897	715
Bank
Commissions and fees
Commissions and fees				6,926	5,816
Bank | Lending business
Commissions and fees
Commissions and fees				997	786
Bank | Investment and portfolio management
Commissions and fees
Commissions and fees				1,699	1,508
Bank | Other securities business
Commissions and fees
Commissions and fees				29	40
Bank | Fiduciary business
Commissions and fees
Commissions and fees				1,728	1,548
Bank | Underwriting
Commissions and fees
Commissions and fees				1,664	981
Bank | Brokerage
Commissions and fees
Commissions and fees				1,624	1,774
Bank | Underwriting and brokerage
Commissions and fees
Commissions and fees				3,288	2,755
Bank | Other services
Commissions and fees
Commissions and fees				SFr 913	SFr 727

Trading revenues (Details)

Trading revenues (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Trading revenues
Trading revenues	SFr 153	SFr 1,811	SFr 1,254	SFr 1,964	SFr 2,181
Interest rate products
Trading revenues
Trading revenues	154	752	1,374	906	(874)
Foreign exchange products
Trading revenues
Trading revenues	358	148	539	506	1,110
Equity/index-related products
Trading revenues
Trading revenues	(117)	1,001	(375)	884	(56)
Credit products
Trading revenues
Trading revenues	(271)	(33)	(682)	(304)	1,217
Commodity, emission and energy products
Trading revenues
Trading revenues	(7)	9	69	2	97
Other trading securities
Trading revenues
Trading revenues	SFr 36	SFr (66)	SFr 329	(30)	687
Bank
Trading revenues
Trading revenues				1,924	2,105
Bank | Interest rate products
Trading revenues
Trading revenues				893	(921)
Bank | Foreign exchange products
Trading revenues
Trading revenues				497	1,113
Bank | Equity/index-related products
Trading revenues
Trading revenues				868	(88)
Bank | Credit products
Trading revenues
Trading revenues				(304)	1,217
Bank | Commodity, emission and energy products
Trading revenues
Trading revenues				2	97
Bank | Other trading securities
Trading revenues
Trading revenues				SFr (32)	SFr 687

Other revenues (Details)

Other revenues (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Revenues
Noncontrolling interests without SEI	SFr 4	SFr (1)	SFr 0	SFr 3	SFr 0
Loans held-for-sale	(58)	(41)	5	(99)	(16)
Long-lived assets held-for-sale	3	(2)	6	1	10
Equity method investments	55	29	23	84	59
Other investments	131	199	223	330	451
Other	241	188	233	429	374
Other revenues	SFr 376	SFr 372	SFr 490	748	878
Bank
Other Revenues
Loans held-for-sale				(99)	(16)
Long-lived assets held-for-sale				1	10
Equity method investments				84	58
Other investments				332	451
Other				601	487
Other revenues				SFr 919	SFr 990

Provision for credit losses (De

Provision for credit losses (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Provision for credit losses
Loans held at amortized cost	SFr (28)	SFr (24)	SFr 264	SFr (52)	SFr 691
Other financial assets held at amortized cost	56	4,434	21	4,490	36
Off-balance sheet credit exposures	(53)	(16)	11	(69)	137
Provision for credit losses	(25)	4,394	SFr 296	4,369	864
Archegos Capital Management [Member]
Provision for credit losses
Other financial assets held at amortized cost	SFr 70	SFr 4,430		4,500
Bank
Provision for credit losses
Loans held at amortized cost				(52)	691
Other financial assets held at amortized cost				4,494	32
Off-balance sheet credit exposures				(69)	137
Provision for credit losses				4,373	SFr 860
Bank | Archegos Capital Management [Member]
Provision for credit losses
Other financial assets held at amortized cost				SFr 4,500

Compensation and benefits (Deta

Compensation and benefits (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Compensation and benefits
Salaries and variable compensation	SFr 1,997	SFr 1,849	SFr 2,234	SFr 3,846	SFr 4,143
Social security	166	158	172	324	340
Other	193	200	188	393	427
Compensation and benefits	2,356	2,207	2,594	4,563	4,910
Defined Benefit Plan, Service Cost	60	60	55	120	109
Defined benefit and defined contribution
Compensation and benefits
Defined Benefit Plan, Service Cost	SFr 120	SFr 130	SFr 113	250	263
Bank
Compensation and benefits
Salaries and variable compensation				3,449	3,711
Social security				278	293
Other				369	416
Compensation and benefits				4,096	4,420
Bank | Defined benefit and defined contribution
Compensation and benefits
Defined Benefit Plan, Service Cost				250	272
Bank | International
Compensation and benefits
Defined Benefit Plan, Service Cost				SFr 7	SFr 8

General and administrative ex_3

General and administrative expenses (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
General and Administrative Expenses
Occupancy expenses	SFr 231	SFr 263	SFr 237	SFr 494	SFr 465
IT, machinery, etc.	383	373	357	756	707
Provisions and losses	273	57	133	330	205
Travel and entertainment	32	29	28	61	96
Professional services	454	373	377	827	752
Amortization and impairment of other intangible assets	2	2	1	4	3
Other	214	279	307	493	558
General and administrative expenses	1,589	1,376	1,440	2,965	2,786
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	SFr (42)	SFr (52)	SFr (40)	(94)	(80)
Bank
General and Administrative Expenses
Occupancy expenses				449	415
IT, machinery, etc.				597	561
Provisions and losses				330	203
Travel and entertainment				52	85
Professional services				1,609	1,481
Amortization and impairment of other intangible assets				4	3
Other				623	747
General and administrative expenses				3,664	3,495
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component				SFr (10)	SFr 1

Restructuring expenses (Details

Restructuring expenses (Details) - CHF (SFr) SFr in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	SFr 45	SFr 25	SFr 70
General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	43	14	57
Compensation and benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	2	11	13
of which severance
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	(1)	7	6
of which accelerated deferred compensation
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	SFr 3	SFr 4	7
Bank
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			80
Bank | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			66
Bank | Compensation and benefits
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			14
Bank | of which severance
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			7
Bank | of which accelerated deferred compensation
Restructuring Cost and Reserve [Line Items]
Restructuring expenses			SFr 7

Restructuring provision - Rollf

Restructuring provision - Rollforward (Details 2) - CHF (SFr) SFr in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021
Restructuring provision
Restructuring Reserve, Beginning Balance	SFr 42	SFr 52	SFr 52
Restructuring expenses	45	25	70
Utilization	42	27
Restructuring Reserve, Ending Balance	25	42	25
General and Administrative Expense [Member]
Restructuring provision
Restructuring Reserve, Beginning Balance	3	2	2
Restructuring expenses	43	14	57
Utilization	26	9
Restructuring Reserve, Ending Balance	3	3	3
Compensation and benefits
Restructuring provision
Restructuring Reserve, Beginning Balance	39	50	50
Restructuring expenses	(1)	7	6
Utilization	16	18
Restructuring Reserve, Ending Balance	22	39	22
Unsettled share-based compensation obligations classified as a component of total shareholders equity
Restructuring provision
Restructuring expenses	1	1	2
Unsettled cash-based compensation obligations classified as compensation liabilities
Restructuring provision
Restructuring expenses	2	3	5
Unsettled pension obligation classified as pension liabilities
Restructuring provision
Restructuring expenses	(4)	(7)	(11)
Excluding unsettled compensation, pension obligations and accelerated accumulated depreciation
Restructuring provision
Restructuring expenses	25	17
General and Administrative Expense, Excluding accelerated accumulated depreciation and pension obligations [Member]
Restructuring provision
Restructuring expenses	26	10
Accelerated accumulated depreciation
Restructuring provision
Restructuring expenses	21	11	32
Bank
Restructuring provision
Restructuring Reserve, Beginning Balance		SFr 49	49
Restructuring expenses			80
Utilization			61
Restructuring Reserve, Ending Balance	25		SFr 25
Bank | Stock compensation plan | Share awards
Restructuring provision
Vesting period			3 years
Bank | General and Administrative Expense [Member]
Restructuring provision
Restructuring expenses			SFr 66
Utilization			29
Restructuring Reserve, Ending Balance	3		3
Bank | Compensation and benefits
Restructuring provision
Restructuring expenses			7
Utilization			32
Restructuring Reserve, Ending Balance	SFr 22		22
Bank | Unsettled share-based compensation obligations classified as a component of total shareholders equity
Restructuring provision
Restructuring expenses			2
Bank | Unsettled cash-based compensation obligations classified as compensation liabilities
Restructuring provision
Restructuring expenses			5
Bank | Excluding unsettled compensation, pension obligations and accelerated accumulated depreciation
Restructuring provision
Restructuring expenses			37
Bank | General and Administrative Expense, Excluding accelerated accumulated depreciation and pension obligations [Member]
Restructuring provision
Restructuring expenses			30
Bank | Accelerated accumulated depreciation
Restructuring provision
Restructuring expenses			SFr 32

Earnings per share (Details)

Earnings per share (Details) - CHF (SFr) SFr / shares in Units, shares in Millions, SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income/(loss) attributable to shareholders
Net income/(loss) attributable to shareholders	SFr 253	SFr (252)	SFr 1,162	SFr 1	SFr 2,476
Net income attributable to shareholders for basic earnings per share	253	(252)	1,162	1	2,476
Available for common shares	252	(252)	1,162	1	2,476
Available for mandatory convertible securities	1
Net income/(loss) attributable to shareholders for diluted earnings per share	253	(252)	1,162	1	2,476
Available for common shares	252	SFr (252)	SFr 1,162	SFr 1	SFr 2,476
Net Income (Loss) Available to Common Stockholders, Diluted, Available for mandatory convertible securities	SFr 1
Weighted-average shares outstanding
Weighted-average shares outstanding for basic earnings per share available for common shares (in shares)	2,453.9	2,446.6	2,473.6	2,450.3	2,469.7
Dilutive share options and warrants (in shares)	0.8	0	2.6	0.6	2.1
Dilutive share awards (in shares)	55.1	0	35.2	73.6	47.7
Weighted-average shares outstanding for diluted earnings per share available for common shares (in shares)	2,509.8	2,446.6	2,511.4	2,524.5	2,519.5
Weighted-average shares outstanding for basic/diluted earnings per share available for mandatory convertible securities	130.8			65.4
Basic earnings per share available for common shares (CHF)
Basic earnings/(loss) per share (in CHF per share)	SFr 0.10	SFr (0.10)	SFr 0.47	SFr 0	SFr 1
Diluted earnings per share available for common shares (CHF)
Diluted earnings/(loss) per share (in CHF per share)	SFr 0.10	SFr (0.10)	SFr 0.46	SFr 0	SFr 0.98
Weighted-average potential dilutive common shares	9.6	6.5	5.3	8.1	4.8
Weighted-average share options and warrants (antidilutive)		0.4
Weighted-average share awards (antidilutive)		92

Revenue from contracts with c_3

Revenue from contracts with customers (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	SFr 2,670	SFr 3,219	SFr 2,522	SFr 5,889	SFr 5,017
Other securities business [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	15	13	18	28	36
Underwriting [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	626	989	560	1,615	924
Brokerage [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	693	908	805	1,601	1,771
Investment Advice [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	891	861	752	1,752	1,562
Service, Other [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	SFr 445	SFr 448	SFr 387	893	724
Bank
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				5,952	5,075
Bank | Other securities business [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				29	40
Bank | Underwriting [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				1,664	981
Bank | Brokerage [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				1,623	1,772
Bank | Investment Advice [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				1,699	1,508
Bank | Service, Other [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers				SFr 937	SFr 774

Revenue from contracts with c_4

Revenue from contracts with customers (Details 2) - CHF (SFr) SFr in Millions	3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020
Contract balances [Line Items]
Accounts Receivable, Net			SFr 1,011	SFr 1,120	SFr 1,001
Contract with Customer, Liability			52	65	48
Contract with Customer, Liability, Revenue Recognized			18	SFr 8	7
Bank
Contract balances [Line Items]
Accounts Receivable, Net			1,032		993	SFr 1,123
Contract with Customer, Liability			SFr 52		48	SFr 65
Contract with Customer, Liability, Revenue Recognized	SFr 18	SFr 8			SFr 7

Securities borrowed, lent and s

Securities borrowed, lent and subject to repurchase agreements (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Securities borrowed or purchased under agreements to resell
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions, total	SFr 94,645	SFr 91,121	SFr 79,133
Securities lent or sold under agreements to repurchase
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions, total	20,924	SFr 22,853	23,851
Bank
Securities borrowed or purchased under agreements to resell
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions, total	94,645		79,133
Securities lent or sold under agreements to repurchase
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions, total	SFr 21,020		SFr 23,944

Trading assets and liabilitie_2

Trading assets and liabilities (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Schedule of Trading Assets and Liabilities
Trading assets	SFr 130,505	SFr 157,139	SFr 157,338
Trading liabilities	32,972	47,740	45,871
Debt securities
Schedule of Trading Assets and Liabilities
Trading assets	57,620	64,128	64,395
Equity securities
Schedule of Trading Assets and Liabilities
Trading assets	44,226	60,340	63,237
Derivative instruments
Schedule of Trading Assets and Liabilities
Trading assets	24,156	28,638	25,531
Trading liabilities	12,603	16,414	17,745
Other trading securities
Schedule of Trading Assets and Liabilities
Trading assets	4,503	4,033	4,175
Short positions
Schedule of Trading Assets and Liabilities
Trading liabilities	20,369	SFr 31,326	28,126
Bank
Schedule of Trading Assets and Liabilities
Trading assets	130,684		157,511
Trading liabilities	32,971		45,871
Bank | Debt securities
Schedule of Trading Assets and Liabilities
Trading assets	57,739		64,532
Bank | Equity securities
Schedule of Trading Assets and Liabilities
Trading assets	44,287		63,273
Bank | Derivative instruments
Schedule of Trading Assets and Liabilities
Trading assets	24,155		25,531
Trading liabilities	12,602		17,745
Bank | Other trading securities
Schedule of Trading Assets and Liabilities
Trading assets	4,503		4,175
Bank | Short positions
Schedule of Trading Assets and Liabilities
Trading liabilities	SFr 20,369		SFr 28,126

Trading assets and liabilitie_3

Trading assets and liabilities - Cash collateral - netted (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Cash collateral - netted
Cash collateral paid	SFr 21,161	SFr 24,630	SFr 26,815
Cash collateral received	13,865	13,966	16,795
Cash collateral - not netted
Cash collateral paid	7,664	8,817	7,741
Cash collateral received	7,200	SFr 8,839	7,831
Bank
Cash collateral - netted
Cash collateral paid	21,162		26,885
Cash collateral received	13,865		16,795
Cash collateral - not netted
Cash collateral paid	7,664		7,741
Cash collateral received	SFr 7,209		SFr 7,831

Investment securities (Details)

Investment securities (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Investment securities disclosures
Available-for-sale Securities, Debt Securities	SFr 794	SFr 614	SFr 607
Total investment securities	794	SFr 614	607
Bank
Investment securities disclosures
Available-for-sale Securities, Debt Securities	792		605
Total investment securities	SFr 792		SFr 605

Investment securities by type (

Investment securities by type (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Available-for-sale securities
Amortized cost, Debt Securities			SFr 596
Amortized cost, before allowance for credit losses, Debt Securities	SFr 791
Debt Securities, Available-for-sale, Allowance for Credit Loss	0
Gross unrealized gains, Debt securities	4		11
Gross unrealized losses, Debt securities	1		0
Fair value, Debt securities	794	SFr 614	607
Debt securities issued by the Swiss federal, cantonal or local government entities
Available-for-sale securities
Amortized cost, Debt Securities			3
Amortized cost, before allowance for credit losses, Debt Securities	2
Gross unrealized gains, Debt securities	0		0
Gross unrealized losses, Debt securities	0		0
Fair value, Debt securities	2		3
Debt securities issued by foreign governments
Available-for-sale securities
Amortized cost, Debt Securities			0
Amortized cost, before allowance for credit losses, Debt Securities	32
Gross unrealized gains, Debt securities	0		0
Gross unrealized losses, Debt securities	0		0
Fair value, Debt securities	32		0
Corporate debt securities
Available-for-sale securities
Amortized cost, Debt Securities			593
Amortized cost, before allowance for credit losses, Debt Securities	757
Gross unrealized gains, Debt securities	4		11
Gross unrealized losses, Debt securities	1		0
Fair value, Debt securities	760		604
Bank
Available-for-sale securities
Amortized cost, Debt Securities			595
Amortized cost, before allowance for credit losses, Debt Securities	789
Debt Securities, Available-for-sale, Allowance for Credit Loss	0
Gross unrealized gains, Debt securities	4		10
Gross unrealized losses, Debt securities	1		0
Fair value, Debt securities	792		605
Bank | Debt securities issued by the Swiss federal, cantonal or local government entities
Available-for-sale securities
Amortized cost, Debt Securities			1
Amortized cost, before allowance for credit losses, Debt Securities	0
Gross unrealized gains, Debt securities	0		0
Gross unrealized losses, Debt securities	0		0
Fair value, Debt securities	0		1
Bank | Debt securities issued by foreign governments
Available-for-sale securities
Amortized cost, Debt Securities			0
Amortized cost, before allowance for credit losses, Debt Securities	32
Gross unrealized gains, Debt securities	0		0
Gross unrealized losses, Debt securities	0		0
Fair value, Debt securities	32		0
Bank | Corporate debt securities
Available-for-sale securities
Amortized cost, Debt Securities			594
Amortized cost, before allowance for credit losses, Debt Securities	757
Gross unrealized gains, Debt securities	4		10
Gross unrealized losses, Debt securities	1		0
Fair value, Debt securities	SFr 760		SFr 604

Investment securities - Proceed

Investment securities - Proceeds/realized gains/losses (Details 4) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Proceeds from sales, realized gains and realized losses from available-for-sale securities
Proceeds from sales	SFr 0	SFr 626
Realized gains	0	42
Bank
Proceeds from sales, realized gains and realized losses from available-for-sale securities
Proceeds from sales	0	626
Realized gains	SFr 0	SFr 42

Investment securities - Maturit

Investment securities - Maturities of amortized costs/FV/Avg yield (Details 6) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Due within 1 year, amortized cost	SFr 174
Due from 1 to 5 years, amortized cost	2
Due from 5 to 10 years, amortized cost	615
Total, amortized cost			SFr 596
Total, amortized cost, before allowance for credit losses	791
Due within 1 year, fair value	174
Due from 1 to 5 years, fair value	2
Due from 5 to 10 years, fair value	618
Total, fair value	SFr 794	SFr 614	607
Due within 1 year, average yield (as a percent)	0.03%
Due from 1 to 5 years, average yield (as a percent)	3.81%
Due from 5 to 10 years, average yield (as a percent)	0.02%
Total, average yield (as a percent)	0.03%
Bank
Debt Securities, Available-for-sale [Line Items]
Due within 1 year, amortized cost	SFr 174
Due from 5 to 10 years, amortized cost	615
Total, amortized cost			595
Total, amortized cost, before allowance for credit losses	789
Due within 1 year, fair value	174
Due from 5 to 10 years, fair value	618
Total, fair value	SFr 792		SFr 605
Due within 1 year, average yield (as a percent)	0.03%
Due from 5 to 10 years, average yield (as a percent)	0.02%
Total, average yield (as a percent)	0.02%

Other investments (Details)

Other investments (Details) - CHF (SFr) SFr in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other investments
Other investments	SFr 4,578	SFr 5,640	SFr 5,412		SFr 4,578
Accumulated depreciation, real estate held for investment	32	34	35		32
Impairment charges	0	0	0	SFr 1	0	SFr 1
Foreclosed or Repossessed, Real Estate [Member]
Other investments
Other investments	10	11	16		10
Equity method investments
Other investments
Other investments	1,757	2,812	2,631		1,757
Equity securities (without a readily determinable fair value)
Other investments
Other investments	1,867	1,834	1,779		1,867
of which at net asset value
Other investments
Other investments	122	114	113		122
of which at measurement alternative
Other investments
Other investments	355	367	359		355
of which at fair value
Other investments
Other investments	1,343	1,321	1,278		1,343
of which at cost less impairment
Other investments
Other investments	47	32	29		47
Real estate held for investment
Other investments
Other investments	77	78	82		77
Real estate held for investment | Foreclosed or Repossessed, Real Estate [Member]
Other investments
Other investments	8	8	13		8
Life finance instruments
Other investments
Other investments	877	SFr 916	920		877
Bank
Other investments
Other investments	4,543		5,379		4,543
Accumulated depreciation, real estate held for investment	28		31		28
Impairment charges					0	SFr 1
Bank | Foreclosed or Repossessed, Real Estate [Member]
Other investments
Other investments	10		16		10
Bank | Equity method investments
Other investments
Other investments	1,750		2,624		1,750
Bank | Equity securities (without a readily determinable fair value)
Other investments
Other investments	1,864		1,776		1,864
Bank | of which at net asset value
Other investments
Other investments	122		111		122
Bank | of which at measurement alternative
Other investments
Other investments	353		357		353
Bank | of which at fair value
Other investments
Other investments	1,342		1,278		1,342
Bank | of which at cost less impairment
Other investments
Other investments	47		30		47
Bank | Real estate held for investment
Other investments
Other investments	52		59		52
Bank | Real estate held for investment | Foreclosed or Repossessed, Real Estate [Member]
Other investments
Other investments	8		13		8
Bank | Life finance instruments
Other investments
Other investments	SFr 877		SFr 920		SFr 877

Other investments (Details 2)

Other investments (Details 2) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other investments
Impairments and downward adjustments	SFr (30)			SFr (30)
Impairments and downward adjustments, Annual Amount				(5)	SFr (3)
Upward adjustments	137			137
Upward adjustments, Annual Amount				0	137
Other Revenue, Other Investments	131	SFr 199	SFr 223	330	451
Bank
Other investments
Impairments and downward adjustments	(30)			(30)
Impairments and downward adjustments, Annual Amount				(5)	(3)
Upward adjustments	SFr 137			137
Upward adjustments, Annual Amount				0	137
Other Revenue, Other Investments				SFr 332	SFr 451

Loans, allowance for loan los_3

Loans, allowance for loan losses and credit quality (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans
Gross loans	SFr 301,350	SFr 305,819	SFr 293,539
of which held at amortized cost	290,249	293,992	282,131
of which held at fair value	11,101	11,827	11,408
Net (unearned income)/deferred expenses	(94)	(104)	(95)
Allowance for credit losses	(1,412)	(1,527)	(1,536)	SFr (1,669)	SFr (1,431)	SFr (1,049)
Net loans	299,844	304,188	291,908
Non-performing loans	1,896	1,809	1,666
Non-interest-earning loans	383	380	375
Non-accrual loans	2,279	2,189	2,041	2,274		1,510
Restructured loans	471	472	313
Potential problem loans	406	512	843
Total other impaired loans	877	984	1,156
Gross impaired loans	3,156	3,173	3,197
Consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process	181	176	180
Switzerland
Loans
Gross loans	170,902	171,126	168,589
Foreign
Loans
Gross loans	130,448	134,693	124,950
Corporate and institutional
Loans
Gross loans	127,987	131,971	125,592
of which held at amortized cost	117,003		114,269
Allowance for credit losses	(1,067)	(1,198)	(1,218)	(1,270)	(1,082)	(808)
Non-accrual loans	1,166		1,317	1,313		883
Corporate and institutional | Real estate
Loans
Gross loans	29,464	30,320	29,045
of which held at amortized cost	28,562		28,211
Non-accrual loans	293		324	270		155
Corporate and institutional | Commercial and industrial loans
Loans
Gross loans	73,923	76,528	74,097
of which held at amortized cost	70,798		70,563
Non-accrual loans	790		925	978		682
Corporate and institutional | Financial institutions
Loans
Gross loans	21,016	21,353	19,072
of which held at amortized cost	16,416		14,485
Non-accrual loans	63		68	65		46
Corporate and institutional | Governments and public institutions
Loans
Gross loans	3,584	3,770	3,378
of which held at amortized cost	1,227		1,010
Non-accrual loans	20		0	0		0
Consumer
Loans
Gross loans	173,363	173,848	167,947
of which held at amortized cost	173,246		167,862
Allowance for credit losses	(345)	(329)	(318)	(399)	SFr (349)	(241)
Non-accrual loans	1,113		724	961		627
Consumer | Mortgages
Loans
Gross loans	112,223	111,678	111,270
of which held at amortized cost	112,223		111,270
Non-accrual loans	615		418	380		337
Consumer | Loans collateralized by securities
Loans
Gross loans	54,573	56,281	51,789
of which held at amortized cost	54,573		51,789
Non-accrual loans	298		105	377		122
Consumer | Consumer finance
Loans
Gross loans	6,567	SFr 5,889	4,888
of which held at amortized cost	6,450		4,803
Non-accrual loans	200		201	204		168
Bank
Loans
Gross loans	309,664		301,971
of which held at amortized cost	298,563		290,563
of which held at fair value	11,101		11,408
Net (unearned income)/deferred expenses	(94)		(95)
Allowance for credit losses	(1,411)		(1,535)	(1,668)		(1,048)
Net loans	308,159		300,341
Non-performing loans	1,896		1,666
Non-interest-earning loans	371		363
Non-accrual loans	2,267		2,029	2,262		1,498
Restructured loans	471		313
Potential problem loans	406		843
Total other impaired loans	877		1,156
Gross impaired loans	3,144		3,185
Consumer mortgages secured by residential real estate for which formal foreclosure proceedings according to local requirements of the applicable jurisdiction were in process	181		180
Bank | Switzerland
Loans
Gross loans	178,458		176,312
Bank | Foreign
Loans
Gross loans	131,206		125,659
Bank | Corporate and institutional
Loans
Gross loans	136,301		134,024
of which held at amortized cost	116,991		114,257
Allowance for credit losses	(1,066)		(1,217)	(1,269)		(807)
Non-accrual loans	1,154		1,305	1,301		871
Bank | Corporate and institutional | Real estate
Loans
Gross loans	29,464		29,045
of which held at amortized cost	28,562		28,211
Non-accrual loans	293		324	270		155
Bank | Corporate and institutional | Commercial and industrial loans
Loans
Gross loans	74,570		74,700
of which held at amortized cost	70,786		70,551
Non-accrual loans	778		913	966		670
Bank | Corporate and institutional | Financial institutions
Loans
Gross loans	28,683		26,901
of which held at amortized cost	16,416		14,485
Non-accrual loans	63		68	65		46
Bank | Corporate and institutional | Governments and public institutions
Loans
Gross loans	3,584		3,378
of which held at amortized cost	1,227		1,010
Non-accrual loans	20		0	0		0
Bank | Consumer
Loans
Gross loans	173,363		167,947
of which held at amortized cost	173,246		167,862
Allowance for credit losses	(345)		(318)	(399)		(241)
Non-accrual loans	1,113		724	961		627
Bank | Consumer | Mortgages
Loans
Gross loans	112,223		111,270
of which held at amortized cost	112,223		111,270
Non-accrual loans	615		418	380		337
Bank | Consumer | Loans collateralized by securities
Loans
Gross loans	54,573		51,789
of which held at amortized cost	54,573		51,789
Non-accrual loans	298		105	377		122
Bank | Consumer | Consumer finance
Loans
Gross loans	6,567		4,888
of which held at amortized cost	6,450		4,803
Non-accrual loans	SFr 200		SFr 201	SFr 204		SFr 168

CECL - Financial instruments _3

CECL - Financial instruments measured at amortized cost and credit losses (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Overview of financial instruments measured at amortized cost, by balance sheet position [Line Items]
Cash and due from banks, Amortized cost basis	SFr 146,217		SFr 138,593
Cash and due from banks, Allowance for credit losses	0		(6)
Cash and due from banks, Net carrying value	146,217		138,587
Interest-bearing deposits with banks, Amortized cost basis	1,313		1,303
Interest-bearing deposits with banks, Allowance for credit losses	0		(5)
Interest-bearing deposits with banks, Net carrying value	1,313		1,298
Securities purchased under resale agreements and securities borrowing transactions, Amortized cost basis	25,180		21,139
Securities purchased under resale agreements and securities borrowing transactions, Allowance for credit losses	0		0
Securities purchased under resale agreements and securities borrowing transactions, Net carrying value	25,180		21,139
Loans, Amortized cost basis	290,155		282,036
Allowance for credit losses	(1,412)	SFr (1,527)	(1,536)	SFr (1,669)	SFr (1,431)	SFr (1,049)
Loans, Net carrying value	288,743		280,500
Brokerage receivables, Amortized cost basis	37,501		35,942
Brokerage receivables, Allowance for credit losses	(4,429)	(36)	(1)
Brokerage receivables, Net carrying value	33,072		35,941
Other assets, Amortized cost basis	14,147		15,394
Other assets, Allowance for credit losses	(41)	SFr (4,447)	(43)
Other assets, Net carrying value	14,106		15,351
Total, Amortized cost basis	514,513		494,407
Total, Allowance for credit losses	(5,882)		(1,591)
Total, Net carrying value	508,631		492,816
Bank
Overview of financial instruments measured at amortized cost, by balance sheet position [Line Items]
Cash and due from banks, Amortized cost basis	145,226		137,683
Cash and due from banks, Allowance for credit losses	0		(1)
Cash and due from banks, Net carrying value	145,226		137,682
Interest-bearing deposits with banks, Amortized cost basis	1,245		1,235
Interest-bearing deposits with banks, Allowance for credit losses	0		(5)
Interest-bearing deposits with banks, Net carrying value	1,245		1,230
Securities purchased under resale agreements and securities borrowing transactions, Amortized cost basis	25,180		21,139
Securities purchased under resale agreements and securities borrowing transactions, Allowance for credit losses	0		0
Securities purchased under resale agreements and securities borrowing transactions, Net carrying value	25,180		21,139
Loans, Amortized cost basis	298,469		290,468
Allowance for credit losses	(1,411)		(1,535)	SFr (1,668)		SFr (1,048)
Loans, Net carrying value	297,058		288,933
Brokerage receivables, Amortized cost basis	37,503		35,944
Brokerage receivables, Allowance for credit losses	(4,429)		(1)
Brokerage receivables, Net carrying value	33,074		35,943
Other assets, Amortized cost basis	14,245		15,540
Other assets, Allowance for credit losses	(39)		(41)
Other assets, Net carrying value	14,206		15,499
Total, Amortized cost basis	521,868		502,009
Total, Allowance for credit losses	(5,879)		(1,583)
Total, Net carrying value	SFr 515,989		SFr 500,426

CECL - Financial instruments _4

CECL - Financial instruments measured at amortized cost and credit losses (Details 1) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Overview of financial instruments measured at amortized cost, by balance sheet position [Line Items]
Collateral Dependent Financial Assets, Collateral Coverage Ratio, Recovery Mgt Investment Bank/Asia Pacific	95.00%	86.00%
Collateral Dependent Financial Assets, Collateral Coverage Ratio, Recovery Mgt International Wealth Management	84.00%	87.00%
Collateral Dependent Financial Assets, Collateral Coverage Ratio, Recovery Mgt Swiss Universal Bank	86.00%	87.00%
Accrued interest excluded from amortized cost base of total Financial assets held-at-amortized cost, before allowance of credit losses	SFr 380		SFr 351
Financial Assets, Held-to-Maturity, Cost Practical Expedient, Excluded Accrued Interest [true false]	true
Allowance for credit losses on accrued interest excluded from amortized cost base of total Financial assets held at amortized cost	SFr 0		0
Accrued interest excluded from amortized cost base of total Interest-bearing deposits with banks	SFr 1		1
Interest Bearing Deposits Banks, Practical Expedient, Excluded Accrued Interest [true false]	true
Accrued interest excluded from amortized cost base of total Securities purchased under resale agreements and securities borrowing transactions	SFr 1
Reverse Repos and Securities Borrowing, Practical Expedient, Excluded Accrued Interest [true false]	true
Accrued interest excluded from amortized cost base of total Loans held at amortized cost	SFr 363		334
Financing Receivable, Practical Expedient, Accrued Interest Exclusion [true false]	true
Accrued interest excluded from amortized cost base of total Brokerage receivables	SFr 15		16
Brokerage receivables, Practical Expedient, Excluded Accrued Interest [true false]	true
Financing Receivables,Accrued Interest on Nonaccrual Loans Included	SFr 89		88
Bank
Overview of financial instruments measured at amortized cost, by balance sheet position [Line Items]
Accrued interest excluded from amortized cost base of total Financial assets held-at-amortized cost, before allowance of credit losses	SFr 380		351
Financial Assets, Held-to-Maturity, Cost Practical Expedient, Excluded Accrued Interest [true false]	true
Allowance for credit losses on accrued interest excluded from amortized cost base of total Financial assets held at amortized cost	SFr 0		0
Accrued interest excluded from amortized cost base of total Interest-bearing deposits with banks	SFr 1		1
Interest Bearing Deposits Banks, Practical Expedient, Excluded Accrued Interest [true false]	true
Accrued interest excluded from amortized cost base of total Securities purchased under resale agreements and securities borrowing transactions	SFr 1
Reverse Repos and Securities Borrowing, Practical Expedient, Excluded Accrued Interest [true false]	true
Accrued interest excluded from amortized cost base of total Loans held at amortized cost	SFr 363		334
Financing Receivable, Practical Expedient, Accrued Interest Exclusion [true false]	true
Accrued interest excluded from amortized cost base of total Brokerage receivables	SFr 15		16
Brokerage receivables, Practical Expedient, Excluded Accrued Interest [true false]	true
Financing Receivables,Accrued Interest on Nonaccrual Loans Included	SFr 88		SFr 87

CECL (Details 2)

CECL (Details 2) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance	SFr 1,527	SFr 1,536	SFr 1,431	SFr 1,536	SFr 1,049
Current-period provision for expected credit losses	(13)	(23)	280	(36)	716
of which provisions for interest	15	1	16	16	25
Gross write-offs	(90)	(38)	(36)	(128)	(83)
Recoveries	2	2	3	4	7
Net write-offs	(88)	(36)	(33)	(124)	(76)
Foreign currency translation impact and other adjustments, net	(14)	50	(9)	36	(20)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	1,412	1,527	1,669	1,412	1,669
of which individually evaluated	869	867	899	869	899
of which collectively evaluated	543	660	770	543	770
Loans held at amortized cost
Purchases	993	993	664	1,986	1,349
Reclassifications from loans held-for-sale	0	13	4	13	4
Reclassifications to loans held-for-sale	1,652	468	528	2,120	988
Sales	1,633	374	558	2,007	980
Corporate and institutional
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance	1,198	1,218	1,082	1,218	808
Current-period provision for expected credit losses	(44)	(35)	218	(79)	533
of which provisions for interest	8	0	0	8	4
Gross write-offs	(77)	(24)	(24)	(101)	(59)
Recoveries	0	0	1	0	2
Net write-offs	(77)	(24)	(23)	(101)	(57)
Foreign currency translation impact and other adjustments, net	(10)	39	(7)	29	(14)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	1,067	1,198	1,270	1,067	1,270
of which individually evaluated	614	627	586	614	586
of which collectively evaluated	453	571	684	453	684
Loans held at amortized cost
Purchases	981	988	643	1,969	1,328
Reclassifications from loans held-for-sale	0	13	4	13	4
Reclassifications to loans held-for-sale	1,652	468	528	2,120	988
Sales	1,633	374	558	2,007	980
Consumer
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance	329	318	349	318	241
Current-period provision for expected credit losses	31	12	62	43	183
of which provisions for interest	7	1	16	8	21
Gross write-offs	(13)	(14)	(12)	(27)	(24)
Recoveries	2	2	2	4	5
Net write-offs	(11)	(12)	(10)	(23)	(19)
Foreign currency translation impact and other adjustments, net	(4)	11	(2)	7	(6)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	345	329	399	345	399
of which individually evaluated	255	240	313	255	313
of which collectively evaluated	90	89	86	90	86
Loans held at amortized cost
Purchases	12	5	21	17	21
Reclassifications from loans held-for-sale	0	0	0	0	0
Reclassifications to loans held-for-sale	0	0	0	0	0
Sales	0	0	0	0	0
Bank
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance		1,535		1,535	1,048
Current-period provision for expected credit losses				(36)	716
of which provisions for interest				16	25
Gross write-offs				(128)	(83)
Recoveries				4	7
Net write-offs				(124)	(76)
Foreign currency translation impact and other adjustments, net				36	(20)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	1,411		1,668	1,411	1,668
of which individually evaluated	868		898	868	898
of which collectively evaluated	543		770	543	770
Loans held at amortized cost
Purchases				1,986	1,349
Reclassifications from loans held-for-sale				13	4
Reclassifications to loans held-for-sale				2,120	988
Sales				2,007	980
Bank | Corporate and institutional
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance		1,217		1,217	807
Current-period provision for expected credit losses				(79)	533
of which provisions for interest				8	4
Gross write-offs				(101)	(59)
Recoveries				0	2
Net write-offs				(101)	(57)
Foreign currency translation impact and other adjustments, net				29	(14)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	1,066		1,269	1,066	1,269
of which individually evaluated	613		585	613	585
of which collectively evaluated	453		684	453	684
Loans held at amortized cost
Purchases				1,969	1,328
Reclassifications from loans held-for-sale				13	4
Reclassifications to loans held-for-sale				2,120	988
Sales				2,007	980
Bank | Consumer
Loans Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Loans Held at Amortized Cost, Allowance for Credit Losses, Beginning Balance		SFr 318		318	241
Current-period provision for expected credit losses				43	183
of which provisions for interest				8	21
Gross write-offs				(27)	(24)
Recoveries				4	5
Net write-offs				(23)	(19)
Foreign currency translation impact and other adjustments, net				7	(6)
Loans Held at Amortized Cost, Allowance for Credit Losses, Ending Balance	345		399	345	399
of which individually evaluated	255		313	255	313
of which collectively evaluated	SFr 90		SFr 86	90	86
Loans held at amortized cost
Purchases				17	21
Reclassifications from loans held-for-sale				0	0
Reclassifications to loans held-for-sale				0	0
Sales				SFr 0	SFr 0

CECL (Details 4)

CECL (Details 4) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance		SFr 6		SFr 6
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance		5		5
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Beginning Balance		0		0
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Beginning Balance	SFr 36	1		1
Other assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance	4,447	43		43
Other financial assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance	4,488	55	SFr 52	55	SFr 45
Other financial assets, Current-period provision for expected credit losses	56	4,434	21	4,490	36
Other financial assets, Gross write-offs	(4)	0	(1)	(4)	(9)
Other financial assets, Recovery	0	0	1	0	1
Other financial assets, Net write-offs	(4)	0	0	(4)	(8)
Other financial assets, Foreign currency translation impact and other adjustments, net	(70)	(1)	(3)	(71)	(3)
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Ending Balance	4,429	36		4,429
Other assets, held at amortized cost, Allowance for Credit Loss, Ending Balance	41	4,447		41
Other financial assets, held at amortized cost, Allowance for Credit Loss, Ending Balance	4,470	4,488	70	4,470	70
Other financial assets, individually evaluated	4,450	4,449	20	4,450	20
Other financial assets, collectively evaluated	20	39	50	20	50
Archegos Capital Management [Member]
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Other assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance	4,394
Other financial assets, Current-period provision for expected credit losses	70	4,430		4,500
Other assets, held at amortized cost, Allowance for Credit Loss, Ending Balance		4,394
Bank
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance		1		1
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Beginning Balance		5		5
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Beginning Balance		0		0
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Beginning Balance		1		1
Other assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance		41		41
Other financial assets, held at amortized cost, Allowance for Credit Loss, Beginning Balance		SFr 48		48	43
Other financial assets, Current-period provision for expected credit losses				4,494	32
Other financial assets, Gross write-offs				(4)	(9)
Other financial assets, Recovery				0	1
Other financial assets, Net write-offs				(4)	(8)
Other financial assets, Foreign currency translation impact and other adjustments, net				(70)	(4)
Cash and due from banks, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Interest-bearing deposits with banks, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Securities purchased under resale agreements and securities borrowing transactions, held at amortized cost, Allowance for Credit Loss, Ending Balance	0			0
Brokerage receivables, held at amortized cost, Allowance for Credit Loss, Ending Balance	4,429			4,429
Other assets, held at amortized cost, Allowance for Credit Loss, Ending Balance	39			39
Other financial assets, held at amortized cost, Allowance for Credit Loss, Ending Balance	4,468		63	4,468	63
Other financial assets, individually evaluated	4,448		19	4,448	19
Other financial assets, collectively evaluated	SFr 20		SFr 44	20	SFr 44
Bank | Archegos Capital Management [Member]
Other financial assets, Held At Amortized Cost, Allowance for Credit Losses [Roll Forward]
Other financial assets, Current-period provision for expected credit losses				SFr 4,500

CECL (Details 6)

CECL (Details 6) SFr in Millions	6 Months Ended
	Jun. 30, 2021CHF (SFr)monthday	Jun. 30, 2020CHF (SFr)	Mar. 31, 2021CHF (SFr)	Dec. 31, 2020CHF (SFr)	Dec. 31, 2019CHF (SFr)
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	SFr 2,279	SFr 2,274	SFr 2,189	SFr 2,041	SFr 1,510
Interest income recognized	20	28
Amortized cost of non-accrual assets with no specific allowance	SFr 244	185
Number of days of default on interest or principal considered to assess credit worthiness (in months) | month	3
Period of anticipated repayment after which loan is written down to net book value (in days) | day	10
Minimum [Member]
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Write-Down of Loan to Net Book Value Loan Provision Threshold as Percentage of Loan Notional Amount	90.00%
Corporate and institutional
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	SFr 1,166	1,313		1,317	883
Interest income recognized	14	24
Amortized cost of non-accrual assets with no specific allowance	76	86
Corporate and institutional | Real estate
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	293	270		324	155
Interest income recognized	6	3
Amortized cost of non-accrual assets with no specific allowance	46	37
Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	790	978		925	682
Interest income recognized	8	21
Amortized cost of non-accrual assets with no specific allowance	30	41
Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	63	65		68	46
Interest income recognized	0	0
Amortized cost of non-accrual assets with no specific allowance	0	8
Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	20	0		0	0
Interest income recognized	0	0
Amortized cost of non-accrual assets with no specific allowance	0	0
Consumer
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	1,113	961		724	627
Interest income recognized	6	4
Amortized cost of non-accrual assets with no specific allowance	168	99
Consumer | Mortgages
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	615	380		418	337
Interest income recognized	2	1
Amortized cost of non-accrual assets with no specific allowance	167	20
Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	298	377		105	122
Interest income recognized	3	3
Amortized cost of non-accrual assets with no specific allowance	0	75
Consumer | Consumer finance
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	200	204		201	168
Interest income recognized	1	0
Amortized cost of non-accrual assets with no specific allowance	1	4
Bank
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	2,267	2,262		2,029	1,498
Interest income recognized	20	28
Amortized cost of non-accrual assets with no specific allowance	244	185
Bank | Corporate and institutional
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	1,154	1,301		1,305	871
Interest income recognized	14	24
Amortized cost of non-accrual assets with no specific allowance	76	86
Bank | Corporate and institutional | Real estate
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	293	270		324	155
Interest income recognized	6	3
Amortized cost of non-accrual assets with no specific allowance	46	37
Bank | Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	778	966		913	670
Interest income recognized	8	21
Amortized cost of non-accrual assets with no specific allowance	30	41
Bank | Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	63	65		68	46
Interest income recognized	0	0
Amortized cost of non-accrual assets with no specific allowance	0	8
Bank | Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	20	0		0	0
Interest income recognized	0	0
Amortized cost of non-accrual assets with no specific allowance	0	0
Bank | Consumer
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	1,113	961		724	627
Interest income recognized	6	4
Amortized cost of non-accrual assets with no specific allowance	168	99
Bank | Consumer | Mortgages
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	615	380		418	337
Interest income recognized	2	1
Amortized cost of non-accrual assets with no specific allowance	167	20
Bank | Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	298	377		105	122
Interest income recognized	3	3
Amortized cost of non-accrual assets with no specific allowance	0	75
Bank | Consumer | Consumer finance
Loans Held At Amortized Cost, Nonaccrual [Line Items]
Amortized cost of non-accrual assets	200	204		SFr 201	SFr 168
Interest income recognized	1	0
Amortized cost of non-accrual assets with no specific allowance	SFr 1	SFr 4

CECL (Details 7)

CECL (Details 7) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	SFr 286,704		SFr 279,186
Gross loans held at amortized cost, past due	3,545		2,945
Total	290,249	SFr 293,992	282,131
Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,214		994
Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	456		212
Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	129		301
Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,746		1,438
Corporate and institutional
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	115,022		112,410
Gross loans held at amortized cost, past due	1,981		1,859
Total	117,003		114,269
Corporate and institutional | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	566		758
Corporate and institutional | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	358		76
Corporate and institutional | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	53		220
Corporate and institutional | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,004		805
Corporate and institutional | Real estate
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	28,161		28,070
Gross loans held at amortized cost, past due	401		141
Total	28,562		28,211
Corporate and institutional | Real estate | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	91		50
Corporate and institutional | Real estate | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	122		3
Corporate and institutional | Real estate | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	4		11
Corporate and institutional | Real estate | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	184		77
Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	69,391		69,060
Gross loans held at amortized cost, past due	1,407		1,503
Total	70,798		70,563
Corporate and institutional | Commercial and industrial loans | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	388		630
Corporate and institutional | Commercial and industrial loans | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	236		54
Corporate and institutional | Commercial and industrial loans | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	49		137
Corporate and institutional | Commercial and industrial loans | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	734		682
Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	16,278		14,311
Gross loans held at amortized cost, past due	138		174
Total	16,416		14,485
Corporate and institutional | Financial institutions | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	72		41
Corporate and institutional | Financial institutions | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		15
Corporate and institutional | Financial institutions | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		72
Corporate and institutional | Financial institutions | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	66		46
Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	1,192		969
Gross loans held at amortized cost, past due	35		41
Total	1,227		1,010
Corporate and institutional | Governments and public institutions | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	15		37
Corporate and institutional | Governments and public institutions | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		4
Corporate and institutional | Governments and public institutions | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		0
Corporate and institutional | Governments and public institutions | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	20		0
Consumer
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	171,682		166,776
Gross loans held at amortized cost, past due	1,564		1,086
Total	173,246		167,862
Consumer | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	648		236
Consumer | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	98		136
Consumer | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	76		81
Consumer | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	742		633
Consumer | Mortgages
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	111,521		110,747
Gross loans held at amortized cost, past due	702		523
Total	112,223		111,270
Consumer | Mortgages | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	167		63
Consumer | Mortgages | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	45		68
Consumer | Mortgages | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	27		34
Consumer | Mortgages | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	463		358
Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	54,411		51,668
Gross loans held at amortized cost, past due	162		121
Total	54,573		51,789
Consumer | Loans collateralized by securities | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	5		17
Consumer | Loans collateralized by securities | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	38		0
Consumer | Loans collateralized by securities | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1		0
Consumer | Loans collateralized by securities | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	118		104
Consumer | Consumer finance
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	5,750		4,361
Gross loans held at amortized cost, past due	700		442
Total	6,450		4,803
Consumer | Consumer finance | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	476		156
Consumer | Consumer finance | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	15		68
Consumer | Consumer finance | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	48		47
Consumer | Consumer finance | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	161		171
Bank
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	295,029		287,630
Gross loans held at amortized cost, past due	3,534		2,933
Total	298,563		290,563
Bank | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,214		994
Bank | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	456		212
Bank | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	129		301
Bank | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,735		1,426
Bank | Corporate and institutional
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	115,021		112,410
Gross loans held at amortized cost, past due	1,970		1,847
Total	116,991		114,257
Bank | Corporate and institutional | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	566		758
Bank | Corporate and institutional | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	358		76
Bank | Corporate and institutional | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	53		220
Bank | Corporate and institutional | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	993		793
Bank | Corporate and institutional | Real estate
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	28,161		28,070
Gross loans held at amortized cost, past due	401		141
Total	28,562		28,211
Bank | Corporate and institutional | Real estate | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	91		50
Bank | Corporate and institutional | Real estate | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	122		3
Bank | Corporate and institutional | Real estate | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	4		11
Bank | Corporate and institutional | Real estate | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	184		77
Bank | Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	69,390		69,060
Gross loans held at amortized cost, past due	1,396		1,491
Total	70,786		70,551
Bank | Corporate and institutional | Commercial and industrial loans | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	388		630
Bank | Corporate and institutional | Commercial and industrial loans | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	236		54
Bank | Corporate and institutional | Commercial and industrial loans | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	49		137
Bank | Corporate and institutional | Commercial and industrial loans | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	723		670
Bank | Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	16,278		14,311
Gross loans held at amortized cost, past due	138		174
Total	16,416		14,485
Bank | Corporate and institutional | Financial institutions | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	72		41
Bank | Corporate and institutional | Financial institutions | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		15
Bank | Corporate and institutional | Financial institutions | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		72
Bank | Corporate and institutional | Financial institutions | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	66		46
Bank | Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	1,192		969
Gross loans held at amortized cost, past due	35		41
Total	1,227		1,010
Bank | Corporate and institutional | Governments and public institutions | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	15		37
Bank | Corporate and institutional | Governments and public institutions | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		4
Bank | Corporate and institutional | Governments and public institutions | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		0
Bank | Corporate and institutional | Governments and public institutions | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	20		0
Bank | Consumer
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	171,682		166,776
Gross loans held at amortized cost, past due	1,564		1,086
Total	173,246		167,862
Bank | Consumer | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	648		236
Bank | Consumer | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	98		136
Bank | Consumer | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	76		81
Bank | Consumer | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	742		633
Bank | Consumer | Mortgages
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	111,521		110,747
Gross loans held at amortized cost, past due	702		523
Total	112,223		111,270
Bank | Consumer | Mortgages | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	167		63
Bank | Consumer | Mortgages | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	45		68
Bank | Consumer | Mortgages | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	27		34
Bank | Consumer | Mortgages | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	463		358
Bank | Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	54,411		51,668
Gross loans held at amortized cost, past due	162		121
Total	54,573		51,789
Bank | Consumer | Loans collateralized by securities | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	5		17
Bank | Consumer | Loans collateralized by securities | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	38		0
Bank | Consumer | Loans collateralized by securities | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1		0
Bank | Consumer | Loans collateralized by securities | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	118		104
Bank | Consumer | Consumer finance
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	5,750		4,361
Gross loans held at amortized cost, past due	700		442
Total	6,450		4,803
Bank | Consumer | Consumer finance | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	476		156
Bank | Consumer | Consumer finance | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	15		68
Bank | Consumer | Consumer finance | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	48		47
Bank | Consumer | Consumer finance | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	161		171
Bank | Total loans to third parties
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	286,703		279,186
Gross loans held at amortized cost, past due	3,534		2,933
Total	290,237		282,119
Bank | Total loans to third parties | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,214		994
Bank | Total loans to third parties | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	456		212
Bank | Total loans to third parties | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	129		301
Bank | Total loans to third parties | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	1,735		1,426
Bank | Total loans to entities under common control
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, current	8,326		8,444
Gross loans held at amortized cost, past due	0		0
Total	8,326		8,444
Bank | Total loans to entities under common control | Past due up to 30 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		0
Bank | Total loans to entities under common control | Past due 31 - 60 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		0
Bank | Total loans to entities under common control | Past due 61 - 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	0		0
Bank | Total loans to entities under common control | Past due more than 90 days
Loans Held At Amortized Cost, Amortized cost, Past Due [Line Items]
Gross loans held at amortized cost, past due	SFr 0		SFr 0

CECL (Details 9)

CECL (Details 9) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Other financial assets held at amortized cost, total	SFr 888	SFr 1,010
Bank
Financing Receivable, Recorded Investment, Past Due [Line Items]
Other financial assets held at amortized cost, total	SFr 888	SFr 1,010

CECL (Details 10)

CECL (Details 10) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	SFr 45,625		SFr 58,955
Origination in current year-1	43,968		35,215
Origination in current year-2	28,641		23,170
Origination in current year-3	18,699		13,022
Origination in current year-4	10,674		16,565
Origination in current year-5 or more	62,079		59,026
Total term loans	209,686		205,953
Revolving loans	80,563		76,178
Financing Receivable, before Allowance for Credit Loss and Fee	290,249	SFr 293,992	282,131
Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	30,439		39,082
Origination in current year-1	30,790		24,471
Origination in current year-2	19,897		15,690
Origination in current year-3	12,579		9,358
Origination in current year-4	7,846		13,678
Origination in current year-5 or more	52,776		50,017
Total term loans	154,327		152,296
Revolving loans	66,614		62,282
Financing Receivable, before Allowance for Credit Loss and Fee	220,941		214,578
Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	15,043		19,257
Origination in current year-1	12,993		10,514
Origination in current year-2	8,495		7,119
Origination in current year-3	5,729		3,471
Origination in current year-4	2,648		2,734
Origination in current year-5 or more	8,751		8,589
Total term loans	53,659		51,684
Revolving loans	13,102		13,173
Financing Receivable, before Allowance for Credit Loss and Fee	66,761		64,857
Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	143		616
Origination in current year-1	185		230
Origination in current year-2	249		361
Origination in current year-3	391		193
Origination in current year-4	180		153
Origination in current year-5 or more	552		420
Total term loans	1,700		1,973
Revolving loans	847		723
Financing Receivable, before Allowance for Credit Loss and Fee	2,547		2,696
Corporate and institutional
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	26,781		32,940
Origination in current year-1	20,998		17,217
Origination in current year-2	12,948		10,836
Origination in current year-3	8,032		4,680
Origination in current year-4	3,443		4,214
Origination in current year-5 or more	12,904		14,672
Total term loans	85,106		84,559
Revolving loans	31,897		29,710
Financing Receivable, before Allowance for Credit Loss and Fee	117,003		114,269
Corporate and institutional | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	13,863		17,338
Origination in current year-1	11,266		8,861
Origination in current year-2	6,450		4,670
Origination in current year-3	3,400		2,129
Origination in current year-4	1,708		2,511
Origination in current year-5 or more	7,882		9,488
Total term loans	44,569		44,997
Revolving loans	22,303		19,677
Financing Receivable, before Allowance for Credit Loss and Fee	66,872		64,674
Corporate and institutional | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	12,782		15,143
Origination in current year-1	9,574		8,174
Origination in current year-2	6,318		5,886
Origination in current year-3	4,452		2,419
Origination in current year-4	1,696		1,636
Origination in current year-5 or more	4,856		5,021
Total term loans	39,678		38,279
Revolving loans	8,980		9,499
Financing Receivable, before Allowance for Credit Loss and Fee	48,658		47,778
Corporate and institutional | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	136		459
Origination in current year-1	158		182
Origination in current year-2	180		280
Origination in current year-3	180		132
Origination in current year-4	39		67
Origination in current year-5 or more	166		163
Total term loans	859		1,283
Revolving loans	614		534
Financing Receivable, before Allowance for Credit Loss and Fee	1,473		1,817
Corporate and institutional | Real estate
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	7,980		8,952
Origination in current year-1	7,063		4,513
Origination in current year-2	3,560		3,006
Origination in current year-3	2,012		1,451
Origination in current year-4	958		1,901
Origination in current year-5 or more	5,629		7,120
Total term loans	27,202		26,943
Revolving loans	1,360		1,268
Financing Receivable, before Allowance for Credit Loss and Fee	28,562		28,211
Corporate and institutional | Real estate | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	5,254		6,054
Origination in current year-1	4,614		2,902
Origination in current year-2	2,429		1,849
Origination in current year-3	1,350		1,033
Origination in current year-4	778		1,591
Origination in current year-5 or more	4,710		5,982
Total term loans	19,135		19,411
Revolving loans	884		1,027
Financing Receivable, before Allowance for Credit Loss and Fee	20,019		20,438
Corporate and institutional | Real estate | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,724		2,792
Origination in current year-1	2,443		1,611
Origination in current year-2	1,129		1,133
Origination in current year-3	661		346
Origination in current year-4	178		285
Origination in current year-5 or more	888		1,105
Total term loans	8,023		7,272
Revolving loans	338		172
Financing Receivable, before Allowance for Credit Loss and Fee	8,361		7,444
Corporate and institutional | Real estate | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2		106
Origination in current year-1	6		0
Origination in current year-2	2		24
Origination in current year-3	1		72
Origination in current year-4	2		25
Origination in current year-5 or more	31		33
Total term loans	44		260
Revolving loans	138		69
Financing Receivable, before Allowance for Credit Loss and Fee	182		329
Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	14,412		19,655
Origination in current year-1	11,135		10,395
Origination in current year-2	8,361		6,349
Origination in current year-3	4,882		3,005
Origination in current year-4	2,348		2,079
Origination in current year-5 or more	6,596		6,795
Total term loans	47,734		48,278
Revolving loans	23,064		22,285
Financing Receivable, before Allowance for Credit Loss and Fee	70,798		70,563
Corporate and institutional | Commercial and industrial loans | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	5,353		7,724
Origination in current year-1	4,225		3,851
Origination in current year-2	3,177		1,781
Origination in current year-3	1,309		964
Origination in current year-4	831		809
Origination in current year-5 or more	2,666		2,830
Total term loans	17,561		17,959
Revolving loans	14,311		12,913
Financing Receivable, before Allowance for Credit Loss and Fee	31,872		30,872
Corporate and institutional | Commercial and industrial loans | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	8,965		11,621
Origination in current year-1	6,802		6,411
Origination in current year-2	5,027		4,321
Origination in current year-3	3,403		1,981
Origination in current year-4	1,480		1,248
Origination in current year-5 or more	3,810		3,837
Total term loans	29,487		29,419
Revolving loans	8,278		8,908
Financing Receivable, before Allowance for Credit Loss and Fee	37,765		38,327
Corporate and institutional | Commercial and industrial loans | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	94		310
Origination in current year-1	108		133
Origination in current year-2	157		247
Origination in current year-3	170		60
Origination in current year-4	37		22
Origination in current year-5 or more	120		128
Total term loans	686		900
Revolving loans	475		464
Financing Receivable, before Allowance for Credit Loss and Fee	1,161		1,364
Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	3,924		4,126
Origination in current year-1	2,564		2,144
Origination in current year-2	888		1,401
Origination in current year-3	1,070		189
Origination in current year-4	107		159
Origination in current year-5 or more	405		328
Total term loans	8,958		8,347
Revolving loans	7,458		6,138
Financing Receivable, before Allowance for Credit Loss and Fee	16,416		14,485
Corporate and institutional | Financial institutions | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,829		3,386
Origination in current year-1	2,249		1,973
Origination in current year-2	745		960
Origination in current year-3	684		97
Origination in current year-4	69		37
Origination in current year-5 or more	254		288
Total term loans	6,830		6,741
Revolving loans	7,093		5,718
Financing Receivable, before Allowance for Credit Loss and Fee	13,923		12,459
Corporate and institutional | Financial institutions | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,055		697
Origination in current year-1	271		132
Origination in current year-2	142		432
Origination in current year-3	377		92
Origination in current year-4	38		102
Origination in current year-5 or more	136		38
Total term loans	2,019		1,493
Revolving loans	364		419
Financing Receivable, before Allowance for Credit Loss and Fee	2,383		1,912
Corporate and institutional | Financial institutions | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	40		43
Origination in current year-1	44		39
Origination in current year-2	1		9
Origination in current year-3	9		0
Origination in current year-4	0		20
Origination in current year-5 or more	15		2
Total term loans	109		113
Revolving loans	1		1
Financing Receivable, before Allowance for Credit Loss and Fee	110		114
Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	465		207
Origination in current year-1	236		165
Origination in current year-2	139		80
Origination in current year-3	68		35
Origination in current year-4	30		75
Origination in current year-5 or more	274		429
Total term loans	1,212		991
Revolving loans	15		19
Financing Receivable, before Allowance for Credit Loss and Fee	1,227		1,010
Corporate and institutional | Governments and public institutions | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	427		174
Origination in current year-1	178		135
Origination in current year-2	99		80
Origination in current year-3	57		35
Origination in current year-4	30		74
Origination in current year-5 or more	252		388
Total term loans	1,043		886
Revolving loans	15		19
Financing Receivable, before Allowance for Credit Loss and Fee	1,058		905
Corporate and institutional | Governments and public institutions | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	38		33
Origination in current year-1	58		20
Origination in current year-2	20		0
Origination in current year-3	11		0
Origination in current year-4	0		1
Origination in current year-5 or more	22		41
Total term loans	149		95
Revolving loans	0		0
Financing Receivable, before Allowance for Credit Loss and Fee	149		95
Corporate and institutional | Governments and public institutions | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	0		0
Origination in current year-1	0		10
Origination in current year-2	20		0
Origination in current year-3	0		0
Origination in current year-4	0		0
Origination in current year-5 or more	0		0
Total term loans	20		10
Revolving loans	0		0
Financing Receivable, before Allowance for Credit Loss and Fee	20		10
Consumer
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	18,844		26,015
Origination in current year-1	22,970		17,998
Origination in current year-2	15,693		12,334
Origination in current year-3	10,667		8,342
Origination in current year-4	7,231		12,351
Origination in current year-5 or more	49,175		44,354
Total term loans	124,580		121,394
Revolving loans	48,666		46,468
Financing Receivable, before Allowance for Credit Loss and Fee	173,246		167,862
Consumer | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	16,576		21,744
Origination in current year-1	19,524		15,610
Origination in current year-2	13,447		11,020
Origination in current year-3	9,179		7,229
Origination in current year-4	6,138		11,167
Origination in current year-5 or more	44,894		40,529
Total term loans	109,758		107,299
Revolving loans	44,311		42,605
Financing Receivable, before Allowance for Credit Loss and Fee	154,069		149,904
Consumer | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,261		4,114
Origination in current year-1	3,419		2,340
Origination in current year-2	2,177		1,233
Origination in current year-3	1,277		1,052
Origination in current year-4	952		1,098
Origination in current year-5 or more	3,895		3,568
Total term loans	13,981		13,405
Revolving loans	4,122		3,674
Financing Receivable, before Allowance for Credit Loss and Fee	18,103		17,079
Consumer | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	7		157
Origination in current year-1	27		48
Origination in current year-2	69		81
Origination in current year-3	211		61
Origination in current year-4	141		86
Origination in current year-5 or more	386		257
Total term loans	841		690
Revolving loans	233		189
Financing Receivable, before Allowance for Credit Loss and Fee	1,074		879
Consumer | Mortgages
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	14,180		20,432
Origination in current year-1	19,236		15,609
Origination in current year-2	14,039		11,232
Origination in current year-3	9,822		7,988
Origination in current year-4	6,939		11,941
Origination in current year-5 or more	46,795		42,988
Total term loans	111,011		110,190
Revolving loans	1,212		1,080
Financing Receivable, before Allowance for Credit Loss and Fee	112,223		111,270
Consumer | Mortgages | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	13,021		18,765
Origination in current year-1	17,518		14,072
Origination in current year-2	12,435		10,242
Origination in current year-3	8,711		7,087
Origination in current year-4	5,992		10,951
Origination in current year-5 or more	43,362		39,918
Total term loans	101,039		101,035
Revolving loans	319		528
Financing Receivable, before Allowance for Credit Loss and Fee	101,358		101,563
Consumer | Mortgages | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,153		1,664
Origination in current year-1	1,701		1,511
Origination in current year-2	1,554		932
Origination in current year-3	1,031		857
Origination in current year-4	821		914
Origination in current year-5 or more	3,091		2,854
Total term loans	9,351		8,732
Revolving loans	893		548
Financing Receivable, before Allowance for Credit Loss and Fee	10,244		9,280
Consumer | Mortgages | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	6		3
Origination in current year-1	17		26
Origination in current year-2	50		58
Origination in current year-3	80		44
Origination in current year-4	126		76
Origination in current year-5 or more	342		216
Total term loans	621		423
Revolving loans	0		4
Financing Receivable, before Allowance for Credit Loss and Fee	621		427
Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,432		3,378
Origination in current year-1	2,443		1,343
Origination in current year-2	772		563
Origination in current year-3	187		102
Origination in current year-4	111		327
Origination in current year-5 or more	1,832		1,185
Total term loans	7,777		6,898
Revolving loans	46,796		44,891
Financing Receivable, before Allowance for Credit Loss and Fee	54,573		51,789
Consumer | Loans collateralized by securities | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,061		1,682
Origination in current year-1	1,273		1,019
Origination in current year-2	562		499
Origination in current year-3	49		61
Origination in current year-4	96		200
Origination in current year-5 or more	1,135		563
Total term loans	5,176		4,024
Revolving loans	43,499		41,749
Financing Receivable, before Allowance for Credit Loss and Fee	48,675		45,773
Consumer | Loans collateralized by securities | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	371		1,547
Origination in current year-1	1,170		324
Origination in current year-2	210		64
Origination in current year-3	25		41
Origination in current year-4	15		127
Origination in current year-5 or more	697		622
Total term loans	2,488		2,725
Revolving loans	3,154		3,038
Financing Receivable, before Allowance for Credit Loss and Fee	5,642		5,763
Consumer | Loans collateralized by securities | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	0		149
Origination in current year-1	0		0
Origination in current year-2	0		0
Origination in current year-3	113		0
Origination in current year-4	0		0
Origination in current year-5 or more	0		0
Total term loans	113		149
Revolving loans	143		104
Financing Receivable, before Allowance for Credit Loss and Fee	256		253
Consumer | Consumer finance
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,232		2,205
Origination in current year-1	1,291		1,046
Origination in current year-2	882		539
Origination in current year-3	658		252
Origination in current year-4	181		83
Origination in current year-5 or more	548		181
Total term loans	5,792		4,306
Revolving loans	658		497
Financing Receivable, before Allowance for Credit Loss and Fee	6,450		4,803
Consumer | Consumer finance | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,494		1,297
Origination in current year-1	733		519
Origination in current year-2	450		279
Origination in current year-3	419		81
Origination in current year-4	50		16
Origination in current year-5 or more	397		48
Total term loans	3,543		2,240
Revolving loans	493		328
Financing Receivable, before Allowance for Credit Loss and Fee	4,036		2,568
Consumer | Consumer finance | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	737		903
Origination in current year-1	548		505
Origination in current year-2	413		237
Origination in current year-3	221		154
Origination in current year-4	116		57
Origination in current year-5 or more	107		92
Total term loans	2,142		1,948
Revolving loans	75		88
Financing Receivable, before Allowance for Credit Loss and Fee	2,217		2,036
Consumer | Consumer finance | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1		5
Origination in current year-1	10		22
Origination in current year-2	19		23
Origination in current year-3	18		17
Origination in current year-4	15		10
Origination in current year-5 or more	44		41
Total term loans	107		118
Revolving loans	90		81
Financing Receivable, before Allowance for Credit Loss and Fee	197		199
Bank
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	45,625		58,955
Origination in current year-1	43,968		35,215
Origination in current year-2	28,641		23,170
Origination in current year-3	18,699		13,022
Origination in current year-4	10,674		16,565
Origination in current year-5 or more	62,067		59,014
Total term loans	209,674		205,941
Revolving loans	80,563		76,178
Financing Receivable, before Allowance for Credit Loss and Fee	298,563		290,563
Bank | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	30,439		39,082
Origination in current year-1	30,790		24,471
Origination in current year-2	19,897		15,690
Origination in current year-3	12,579		9,358
Origination in current year-4	7,846		13,678
Origination in current year-5 or more	52,776		50,017
Total term loans	154,327		152,296
Revolving loans	66,614		62,282
Financing Receivable, before Allowance for Credit Loss and Fee	229,265		223,022
Bank | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	15,043		19,257
Origination in current year-1	12,993		10,514
Origination in current year-2	8,495		7,119
Origination in current year-3	5,729		3,471
Origination in current year-4	2,648		2,734
Origination in current year-5 or more	8,751		8,589
Total term loans	53,659		51,684
Revolving loans	13,102		13,173
Financing Receivable, before Allowance for Credit Loss and Fee	66,763		64,857
Bank | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	143		616
Origination in current year-1	185		230
Origination in current year-2	249		361
Origination in current year-3	391		193
Origination in current year-4	180		153
Origination in current year-5 or more	540		408
Total term loans	1,688		1,961
Revolving loans	847		723
Financing Receivable, before Allowance for Credit Loss and Fee	2,535		2,684
Bank | Corporate and institutional
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	26,781		32,940
Origination in current year-1	20,998		17,217
Origination in current year-2	12,948		10,836
Origination in current year-3	8,032		4,680
Origination in current year-4	3,443		4,214
Origination in current year-5 or more	12,892		14,660
Total term loans	85,094		84,547
Revolving loans	31,897		29,710
Financing Receivable, before Allowance for Credit Loss and Fee	116,991		114,257
Bank | Corporate and institutional | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	13,863		17,338
Origination in current year-1	11,266		8,861
Origination in current year-2	6,450		4,670
Origination in current year-3	3,400		2,129
Origination in current year-4	1,708		2,511
Origination in current year-5 or more	7,882		9,488
Total term loans	44,569		44,997
Revolving loans	22,303		19,677
Financing Receivable, before Allowance for Credit Loss and Fee	66,872		64,674
Bank | Corporate and institutional | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	12,782		15,143
Origination in current year-1	9,574		8,174
Origination in current year-2	6,318		5,886
Origination in current year-3	4,452		2,419
Origination in current year-4	1,696		1,636
Origination in current year-5 or more	4,856		5,021
Total term loans	39,678		38,279
Revolving loans	8,980		9,499
Financing Receivable, before Allowance for Credit Loss and Fee	48,658		47,778
Bank | Corporate and institutional | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	136		459
Origination in current year-1	158		182
Origination in current year-2	180		280
Origination in current year-3	180		132
Origination in current year-4	39		67
Origination in current year-5 or more	154		151
Total term loans	847		1,271
Revolving loans	614		534
Financing Receivable, before Allowance for Credit Loss and Fee	1,461		1,805
Bank | Corporate and institutional | Real estate
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	7,980		8,952
Origination in current year-1	7,063		4,513
Origination in current year-2	3,560		3,006
Origination in current year-3	2,012		1,451
Origination in current year-4	958		1,901
Origination in current year-5 or more	5,629		7,120
Total term loans	27,202		26,943
Revolving loans	1,360		1,268
Financing Receivable, before Allowance for Credit Loss and Fee	28,562		28,211
Bank | Corporate and institutional | Real estate | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	5,254		6,054
Origination in current year-1	4,614		2,902
Origination in current year-2	2,429		1,849
Origination in current year-3	1,350		1,033
Origination in current year-4	778		1,591
Origination in current year-5 or more	4,710		5,982
Total term loans	19,135		19,411
Revolving loans	884		1,027
Financing Receivable, before Allowance for Credit Loss and Fee	20,019		20,438
Bank | Corporate and institutional | Real estate | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,724		2,792
Origination in current year-1	2,443		1,611
Origination in current year-2	1,129		1,133
Origination in current year-3	661		346
Origination in current year-4	178		285
Origination in current year-5 or more	888		1,105
Total term loans	8,023		7,272
Revolving loans	338		172
Financing Receivable, before Allowance for Credit Loss and Fee	8,361		7,444
Bank | Corporate and institutional | Real estate | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2		106
Origination in current year-1	6		0
Origination in current year-2	2		24
Origination in current year-3	1		72
Origination in current year-4	2		25
Origination in current year-5 or more	31		33
Total term loans	44		260
Revolving loans	138		69
Financing Receivable, before Allowance for Credit Loss and Fee	182		329
Bank | Corporate and institutional | Commercial and industrial loans
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	14,412		19,655
Origination in current year-1	11,135		10,395
Origination in current year-2	8,361		6,349
Origination in current year-3	4,882		3,005
Origination in current year-4	2,348		2,079
Origination in current year-5 or more	6,584		6,783
Total term loans	47,722		48,266
Revolving loans	23,064		22,285
Financing Receivable, before Allowance for Credit Loss and Fee	70,786		70,551
Bank | Corporate and institutional | Commercial and industrial loans | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	5,353		7,724
Origination in current year-1	4,225		3,851
Origination in current year-2	3,177		1,781
Origination in current year-3	1,309		964
Origination in current year-4	831		809
Origination in current year-5 or more	2,666		2,830
Total term loans	17,561		17,959
Revolving loans	14,311		12,913
Financing Receivable, before Allowance for Credit Loss and Fee	31,872		30,872
Bank | Corporate and institutional | Commercial and industrial loans | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	8,965		11,621
Origination in current year-1	6,802		6,411
Origination in current year-2	5,027		4,321
Origination in current year-3	3,403		1,981
Origination in current year-4	1,480		1,248
Origination in current year-5 or more	3,810		3,837
Total term loans	29,487		29,419
Revolving loans	8,278		8,908
Financing Receivable, before Allowance for Credit Loss and Fee	37,765		38,327
Bank | Corporate and institutional | Commercial and industrial loans | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	94		310
Origination in current year-1	108		133
Origination in current year-2	157		247
Origination in current year-3	170		60
Origination in current year-4	37		22
Origination in current year-5 or more	108		116
Total term loans	674		888
Revolving loans	475		464
Financing Receivable, before Allowance for Credit Loss and Fee	1,149		1,352
Bank | Corporate and institutional | Financial institutions
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	3,924		4,126
Origination in current year-1	2,564		2,144
Origination in current year-2	888		1,401
Origination in current year-3	1,070		189
Origination in current year-4	107		159
Origination in current year-5 or more	405		328
Total term loans	8,958		8,347
Revolving loans	7,458		6,138
Financing Receivable, before Allowance for Credit Loss and Fee	16,416		14,485
Bank | Corporate and institutional | Financial institutions | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,829		3,386
Origination in current year-1	2,249		1,973
Origination in current year-2	745		960
Origination in current year-3	684		97
Origination in current year-4	69		37
Origination in current year-5 or more	254		288
Total term loans	6,830		6,741
Revolving loans	7,093		5,718
Financing Receivable, before Allowance for Credit Loss and Fee	13,923		12,459
Bank | Corporate and institutional | Financial institutions | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,055		697
Origination in current year-1	271		132
Origination in current year-2	142		432
Origination in current year-3	377		92
Origination in current year-4	38		102
Origination in current year-5 or more	136		38
Total term loans	2,019		1,493
Revolving loans	364		419
Financing Receivable, before Allowance for Credit Loss and Fee	2,383		1,912
Bank | Corporate and institutional | Financial institutions | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	40		43
Origination in current year-1	44		39
Origination in current year-2	1		9
Origination in current year-3	9		0
Origination in current year-4	0		20
Origination in current year-5 or more	15		2
Total term loans	109		113
Revolving loans	1		1
Financing Receivable, before Allowance for Credit Loss and Fee	110		114
Bank | Corporate and institutional | Governments and public institutions
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	465		207
Origination in current year-1	236		165
Origination in current year-2	139		80
Origination in current year-3	68		35
Origination in current year-4	30		75
Origination in current year-5 or more	274		429
Total term loans	1,212		991
Revolving loans	15		19
Financing Receivable, before Allowance for Credit Loss and Fee	1,227		1,010
Bank | Corporate and institutional | Governments and public institutions | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	427		174
Origination in current year-1	178		135
Origination in current year-2	99		80
Origination in current year-3	57		35
Origination in current year-4	30		74
Origination in current year-5 or more	252		388
Total term loans	1,043		886
Revolving loans	15		19
Financing Receivable, before Allowance for Credit Loss and Fee	1,058		905
Bank | Corporate and institutional | Governments and public institutions | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	38		33
Origination in current year-1	58		20
Origination in current year-2	20		0
Origination in current year-3	11		0
Origination in current year-4	0		1
Origination in current year-5 or more	22		41
Total term loans	149		95
Revolving loans	0		0
Financing Receivable, before Allowance for Credit Loss and Fee	149		95
Bank | Corporate and institutional | Governments and public institutions | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	0		0
Origination in current year-1	0		10
Origination in current year-2	20		0
Origination in current year-3	0		0
Origination in current year-4	0		0
Origination in current year-5 or more	0		0
Total term loans	20		10
Revolving loans	0		0
Financing Receivable, before Allowance for Credit Loss and Fee	20		10
Bank | Consumer
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	18,844		26,015
Origination in current year-1	22,970		17,998
Origination in current year-2	15,693		12,334
Origination in current year-3	10,667		8,342
Origination in current year-4	7,231		12,351
Origination in current year-5 or more	49,175		44,354
Total term loans	124,580		121,394
Revolving loans	48,666		46,468
Financing Receivable, before Allowance for Credit Loss and Fee	173,246		167,862
Bank | Consumer | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	16,576		21,744
Origination in current year-1	19,524		15,610
Origination in current year-2	13,447		11,020
Origination in current year-3	9,179		7,229
Origination in current year-4	6,138		11,167
Origination in current year-5 or more	44,894		40,529
Total term loans	109,758		107,299
Revolving loans	44,311		42,605
Financing Receivable, before Allowance for Credit Loss and Fee	154,069		149,904
Bank | Consumer | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,261		4,114
Origination in current year-1	3,419		2,340
Origination in current year-2	2,177		1,233
Origination in current year-3	1,277		1,052
Origination in current year-4	952		1,098
Origination in current year-5 or more	3,895		3,568
Total term loans	13,981		13,405
Revolving loans	4,122		3,674
Financing Receivable, before Allowance for Credit Loss and Fee	18,103		17,079
Bank | Consumer | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	7		157
Origination in current year-1	27		48
Origination in current year-2	69		81
Origination in current year-3	211		61
Origination in current year-4	141		86
Origination in current year-5 or more	386		257
Total term loans	841		690
Revolving loans	233		189
Financing Receivable, before Allowance for Credit Loss and Fee	1,074		879
Bank | Consumer | Mortgages
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	14,180		20,432
Origination in current year-1	19,236		15,609
Origination in current year-2	14,039		11,232
Origination in current year-3	9,822		7,988
Origination in current year-4	6,939		11,941
Origination in current year-5 or more	46,795		42,988
Total term loans	111,011		110,190
Revolving loans	1,212		1,080
Financing Receivable, before Allowance for Credit Loss and Fee	112,223		111,270
Bank | Consumer | Mortgages | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	13,021		18,765
Origination in current year-1	17,518		14,072
Origination in current year-2	12,435		10,242
Origination in current year-3	8,711		7,087
Origination in current year-4	5,992		10,951
Origination in current year-5 or more	43,362		39,918
Total term loans	101,039		101,035
Revolving loans	319		528
Financing Receivable, before Allowance for Credit Loss and Fee	101,358		101,563
Bank | Consumer | Mortgages | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,153		1,664
Origination in current year-1	1,701		1,511
Origination in current year-2	1,554		932
Origination in current year-3	1,031		857
Origination in current year-4	821		914
Origination in current year-5 or more	3,091		2,854
Total term loans	9,351		8,732
Revolving loans	893		548
Financing Receivable, before Allowance for Credit Loss and Fee	10,244		9,280
Bank | Consumer | Mortgages | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	6		3
Origination in current year-1	17		26
Origination in current year-2	50		58
Origination in current year-3	80		44
Origination in current year-4	126		76
Origination in current year-5 or more	342		216
Total term loans	621		423
Revolving loans	0		4
Financing Receivable, before Allowance for Credit Loss and Fee	621		427
Bank | Consumer | Loans collateralized by securities
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,432		3,378
Origination in current year-1	2,443		1,343
Origination in current year-2	772		563
Origination in current year-3	187		102
Origination in current year-4	111		327
Origination in current year-5 or more	1,832		1,185
Total term loans	7,777		6,898
Revolving loans	46,796		44,891
Financing Receivable, before Allowance for Credit Loss and Fee	54,573		51,789
Bank | Consumer | Loans collateralized by securities | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,061		1,682
Origination in current year-1	1,273		1,019
Origination in current year-2	562		499
Origination in current year-3	49		61
Origination in current year-4	96		200
Origination in current year-5 or more	1,135		563
Total term loans	5,176		4,024
Revolving loans	43,499		41,749
Financing Receivable, before Allowance for Credit Loss and Fee	48,675		45,773
Bank | Consumer | Loans collateralized by securities | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	371		1,547
Origination in current year-1	1,170		324
Origination in current year-2	210		64
Origination in current year-3	25		41
Origination in current year-4	15		127
Origination in current year-5 or more	697		622
Total term loans	2,488		2,725
Revolving loans	3,154		3,038
Financing Receivable, before Allowance for Credit Loss and Fee	5,642		5,763
Bank | Consumer | Loans collateralized by securities | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	0		149
Origination in current year-1	0		0
Origination in current year-2	0		0
Origination in current year-3	113		0
Origination in current year-4	0		0
Origination in current year-5 or more	0		0
Total term loans	113		149
Revolving loans	143		104
Financing Receivable, before Allowance for Credit Loss and Fee	256		253
Bank | Consumer | Consumer finance
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	2,232		2,205
Origination in current year-1	1,291		1,046
Origination in current year-2	882		539
Origination in current year-3	658		252
Origination in current year-4	181		83
Origination in current year-5 or more	548		181
Total term loans	5,792		4,306
Revolving loans	658		497
Financing Receivable, before Allowance for Credit Loss and Fee	6,450		4,803
Bank | Consumer | Consumer finance | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1,494		1,297
Origination in current year-1	733		519
Origination in current year-2	450		279
Origination in current year-3	419		81
Origination in current year-4	50		16
Origination in current year-5 or more	397		48
Total term loans	3,543		2,240
Revolving loans	493		328
Financing Receivable, before Allowance for Credit Loss and Fee	4,036		2,568
Bank | Consumer | Consumer finance | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	737		903
Origination in current year-1	548		505
Origination in current year-2	413		237
Origination in current year-3	221		154
Origination in current year-4	116		57
Origination in current year-5 or more	107		92
Total term loans	2,142		1,948
Revolving loans	75		88
Financing Receivable, before Allowance for Credit Loss and Fee	2,217		2,036
Bank | Consumer | Consumer finance | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Origination in current year	1		5
Origination in current year-1	10		22
Origination in current year-2	19		23
Origination in current year-3	18		17
Origination in current year-4	15		10
Origination in current year-5 or more	44		41
Total term loans	107		118
Revolving loans	90		81
Financing Receivable, before Allowance for Credit Loss and Fee	197		199
Bank | Total loans to third parties
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	290,237		282,119
Bank | Total loans to third parties | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	220,941		214,578
Bank | Total loans to third parties | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	66,761		64,857
Bank | Total loans to third parties | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	2,535		2,684
Bank | Total loans to entities under common control
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	8,326		8,444
Bank | Total loans to entities under common control | Investment grade | AAA to BBB
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	8,324		8,444
Bank | Total loans to entities under common control | Non-investment grade | BB to C
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	2		0
Bank | Total loans to entities under common control | Non-investment grade | D
Loans Held At Amortized Cost, Amortized Cost [Line Items]
Financing Receivable, before Allowance for Credit Loss and Fee	SFr 0		SFr 0

CECL (Details 12)

CECL (Details 12) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	SFr 0	SFr 70
Origination in current year-3	70	2
Origination in current year-4	1	4
Origination 5 years or more	3	0
Total term positions	74	76
Revolving positions	814	934
Other financial assets held at amortized cost, total	888	1,010
Investment grade | AAA to BBB
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	0
Origination in current year-3	0	0
Origination in current year-4	0	0
Origination 5 years or more	0	0
Total term positions	0	0
Revolving positions	0	0
Other financial assets held at amortized cost, total	0	0
Non-investment grade | BB to C
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	70
Origination in current year-3	70	2
Origination in current year-4	1	4
Origination 5 years or more	3	0
Total term positions	74	76
Revolving positions	814	934
Other financial assets held at amortized cost, total	888	1,010
Non-investment grade | D
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	0
Origination in current year-3	0	0
Origination in current year-4	0	0
Origination 5 years or more	0	0
Total term positions	0	0
Revolving positions	0	0
Other financial assets held at amortized cost, total	0	0
Bank
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	70
Origination in current year-3	70	2
Origination in current year-4	1	4
Origination 5 years or more	3	0
Total term positions	74	76
Revolving positions	814	934
Other financial assets held at amortized cost, total	888	1,010
Bank | Investment grade | AAA to BBB
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	0
Origination in current year-3	0	0
Origination in current year-4	0	0
Origination 5 years or more	0	0
Total term positions	0	0
Revolving positions	0	0
Other financial assets held at amortized cost, total	0	0
Bank | Non-investment grade | BB to C
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	70
Origination in current year-3	70	2
Origination in current year-4	1	4
Origination 5 years or more	3	0
Total term positions	74	76
Revolving positions	814	934
Other financial assets held at amortized cost, total	888	1,010
Bank | Non-investment grade | D
Financing Receivable, Recorded Investment [Line Items]
Origination in current year-2	0	0
Origination in current year-3	0	0
Origination in current year-4	0	0
Origination 5 years or more	0	0
Total term positions	0	0
Revolving positions	0	0
Other financial assets held at amortized cost, total	SFr 0	SFr 0

CECL (Details 14)

CECL (Details 14) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021CHF (SFr)contract	Mar. 31, 2021CHF (SFr)contract	Jun. 30, 2020CHF (SFr)contract	Jun. 30, 2021CHF (SFr)contract	Jun. 30, 2020CHF (SFr)contract
Restructured loans
Restructured loans, Modifications, Number of contracts | contract	5	11	3	16	9
Restructured loans, Modifications, Pre-Modification Recorded Investment	SFr 21	SFr 415	SFr 118	SFr 436	SFr 148
Restructured loans, Modifications, Post-Modification Recorded Investment	SFr 17	SFr 411	SFr 117	SFr 428	SFr 131
Restructured loans, subsequently defaulted, Number of contracts | contract	3	0	3	3	3
Restructured loans, subsequently defaulted, Recorded Investment	SFr 156	SFr 0	SFr 12	SFr 156	SFr 12
Consumer | Loans collateralized by securities
Restructured loans
Restructured loans, Modifications, Number of contracts | contract	0	0	2	0	2
Restructured loans, Modifications, Pre-Modification Recorded Investment	SFr 0	SFr 0	SFr 116	SFr 0	SFr 116
Restructured loans, Modifications, Post-Modification Recorded Investment	SFr 0	SFr 0	SFr 116	SFr 0	SFr 116
Restructured loans, subsequently defaulted, Number of contracts | contract	3	0	0	3	0
Restructured loans, subsequently defaulted, Recorded Investment	SFr 156	SFr 0	SFr 0	SFr 156	SFr 0
Corporate and institutional | Real estate
Restructured loans
Restructured loans, Modifications, Number of contracts | contract	1	0	0	1	0
Restructured loans, Modifications, Pre-Modification Recorded Investment	SFr 2	SFr 0	SFr 0	SFr 2	SFr 0
Restructured loans, Modifications, Post-Modification Recorded Investment	SFr 2	SFr 0	SFr 0	SFr 2	SFr 0
Corporate and institutional | Commercial and industrial loans
Restructured loans
Restructured loans, Modifications, Number of contracts | contract	4	10	1	14	7
Restructured loans, Modifications, Pre-Modification Recorded Investment	SFr 19	SFr 371	SFr 2	SFr 390	SFr 32
Restructured loans, Modifications, Post-Modification Recorded Investment	SFr 15	SFr 367	SFr 1	SFr 382	SFr 15
Restructured loans, subsequently defaulted, Number of contracts | contract	0	0	3	0	3
Restructured loans, subsequently defaulted, Recorded Investment	SFr 0	SFr 0	SFr 12	SFr 0	SFr 12
Corporate and institutional | Financial institutions
Restructured loans
Restructured loans, Modifications, Number of contracts | contract	0	1	0	1	0
Restructured loans, Modifications, Pre-Modification Recorded Investment	SFr 0	SFr 44	SFr 0	SFr 44	SFr 0
Restructured loans, Modifications, Post-Modification Recorded Investment	SFr 0	SFr 44	SFr 0	SFr 44	SFr 0
Bank
Restructured loans
Restructured loans, Modifications, Number of contracts | contract				16	9
Restructured loans, Modifications, Pre-Modification Recorded Investment				SFr 436	SFr 148
Restructured loans, Modifications, Post-Modification Recorded Investment				SFr 428	SFr 131
Restructured loans, subsequently defaulted, Number of contracts | contract				3	3
Restructured loans, subsequently defaulted, Recorded Investment				SFr 156	SFr 12
Bank | Consumer | Loans collateralized by securities
Restructured loans
Restructured loans, Modifications, Number of contracts | contract				0	2
Restructured loans, Modifications, Pre-Modification Recorded Investment				SFr 0	SFr 116
Restructured loans, Modifications, Post-Modification Recorded Investment				SFr 0	SFr 116
Restructured loans, subsequently defaulted, Number of contracts | contract				3	0
Restructured loans, subsequently defaulted, Recorded Investment				SFr 156	SFr 0
Bank | Corporate and institutional | Real estate
Restructured loans
Restructured loans, Modifications, Number of contracts | contract				1	0
Restructured loans, Modifications, Pre-Modification Recorded Investment				SFr 2	SFr 0
Restructured loans, Modifications, Post-Modification Recorded Investment				SFr 2	SFr 0
Bank | Corporate and institutional | Commercial and industrial loans
Restructured loans
Restructured loans, Modifications, Number of contracts | contract				14	7
Restructured loans, Modifications, Pre-Modification Recorded Investment				SFr 390	SFr 32
Restructured loans, Modifications, Post-Modification Recorded Investment				SFr 382	SFr 15
Restructured loans, subsequently defaulted, Number of contracts | contract				0	3
Restructured loans, subsequently defaulted, Recorded Investment				SFr 0	SFr 12
Bank | Corporate and institutional | Financial institutions
Restructured loans
Restructured loans, Modifications, Number of contracts | contract				1	0
Restructured loans, Modifications, Pre-Modification Recorded Investment				SFr 44	SFr 0
Restructured loans, Modifications, Post-Modification Recorded Investment				SFr 44	SFr 0

CECL (Details 15)

CECL (Details 15)	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2022
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Number of Macroeconomic Scenarios	3		3
Scenario, Macroeconomic scenario, Downside [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent	30.00%	40.00%
Scenario, Macroeconomic scenario, Downside [Member] | Real GDP growth rate (%YoY) [Member] | Eurozone [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			2.30%	1.40%
Scenario, Macroeconomic scenario, Downside [Member] | Real GDP growth rate (%YoY) [Member] | SWITZERLAND [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			2.30%	0.10%
Scenario, Macroeconomic scenario, Downside [Member] | Real GDP growth rate (%YoY) [Member] | UNITED STATES [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			4.80%	1.40%
Scenario, Macroeconomic scenario, Downside [Member] | Real GDP growth rate (%YoY) [Member] | UNITED KINGDOM [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			4.80%	3.00%
Scenario, Macroeconomic scenario, Downside [Member] | Industrial production (%YoY) [Member] | World [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			7.20%	2.60%
Scenario, Macroeconomic scenario, Baseline [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent	60.00%	50.00%
Scenario, Macroeconomic scenario, Upside [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent	10.00%	10.00%
Scenario, Macroeconomic scenario, Upside [Member] | Real GDP growth rate (%YoY) [Member] | Eurozone [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			4.20%	4.90%
Scenario, Macroeconomic scenario, Upside [Member] | Real GDP growth rate (%YoY) [Member] | SWITZERLAND [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			3.90%	2.70%
Scenario, Macroeconomic scenario, Upside [Member] | Real GDP growth rate (%YoY) [Member] | UNITED STATES [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			7.30%	3.80%
Scenario, Macroeconomic scenario, Upside [Member] | Real GDP growth rate (%YoY) [Member] | UNITED KINGDOM [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			7.00%	7.30%
Scenario, Macroeconomic scenario, Upside [Member] | Industrial production (%YoY) [Member] | World [Member]
Allowance for Credit Loss, Macroeconomic scenarios [Line Items]
Macroeconomic Scenario Probability, in percent			10.80%	5.20%

Goodwill (Details)

Goodwill (Details) - CHF (SFr) SFr in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Gross amount of goodwill
Balance at beginning of period	SFr 8,535	SFr 8,317
Foreign currency translation impact	(56)	162
Balance at end of period	8,479	8,479
Accumulated impairment
Balance at beginning of period	3,891	3,891
Balance at end of period	3,891	3,891
Net book value
Net book value	4,588	4,588	SFr 4,644	SFr 4,426
Operating Segments | Swiss Universal Bank
Gross amount of goodwill
Balance at beginning of period	595	575
Foreign currency translation impact	(5)	15
Balance at end of period	590	590
Accumulated impairment
Balance at beginning of period	0	0
Balance at end of period	0	0
Net book value
Net book value	590	590
Operating Segments | International Wealth Management
Gross amount of goodwill
Balance at beginning of period	291	284
Foreign currency translation impact	(2)	5
Balance at end of period	289	289
Accumulated impairment
Balance at beginning of period	0	0
Balance at end of period	0	0
Net book value
Net book value	289	289
Operating Segments | Asia Pacific
Gross amount of goodwill
Balance at beginning of period	1,063	1,021
Foreign currency translation impact	(11)	31
Balance at end of period	1,052	1,052
Accumulated impairment
Balance at beginning of period	0	0
Balance at end of period	0	0
Net book value
Net book value	1,052	1,052
Operating Segments | Asset Management
Gross amount of goodwill
Balance at beginning of period	1,140	1,068
Foreign currency translation impact	(18)	54
Balance at end of period	1,122	1,122
Accumulated impairment
Balance at beginning of period	0	0
Balance at end of period	0	0
Net book value
Net book value	1,122	1,122
Operating Segments | Investment Bank
Gross amount of goodwill
Balance at beginning of period	5,434	5,357
Foreign currency translation impact	(20)	57
Balance at end of period	5,414	5,414
Accumulated impairment
Balance at beginning of period	3,879	3,879
Balance at end of period	3,879	3,879
Net book value
Net book value	SFr 1,535	SFr 1,535
Percentage by which goodwill fair value exceeds carrying value	4.00%	4.00%
Operating Segments | Strategic Resolution Unit (old)
Gross amount of goodwill
Balance at end of period	SFr 12	SFr 12
Bank
Gross amount of goodwill
Balance at beginning of period		7,646
Foreign currency translation impact		146
Balance at end of period	7,792	7,792
Accumulated impairment
Balance at beginning of period		3,891
Balance at end of period	3,891	3,891
Net book value
Net book value	3,901	3,901		SFr 3,755
Bank | Operating Segments | Swiss Universal Bank
Gross amount of goodwill
Balance at beginning of period		557
Foreign currency translation impact		15
Balance at end of period	572	572
Accumulated impairment
Balance at beginning of period		0
Balance at end of period	0	0
Net book value
Net book value	572	572
Bank | Operating Segments | International Wealth Management
Gross amount of goodwill
Balance at beginning of period		276
Foreign currency translation impact		6
Balance at end of period	282	282
Accumulated impairment
Balance at beginning of period		0
Balance at end of period	0	0
Net book value
Net book value	282	282
Bank | Operating Segments | Asia Pacific
Gross amount of goodwill
Balance at beginning of period		1,005
Foreign currency translation impact		34
Balance at end of period	1,039	1,039
Accumulated impairment
Balance at beginning of period		0
Balance at end of period	0	0
Net book value
Net book value	1,039	1,039
Bank | Operating Segments | Asset Management
Gross amount of goodwill
Balance at beginning of period		1,062
Foreign currency translation impact		54
Balance at end of period	1,116	1,116
Accumulated impairment
Balance at beginning of period		0
Balance at end of period	0	0
Net book value
Net book value	1,116	1,116
Bank | Operating Segments | Investment Bank
Gross amount of goodwill
Balance at beginning of period		4,734
Foreign currency translation impact		37
Balance at end of period	4,771	4,771
Accumulated impairment
Balance at beginning of period		3,879
Balance at end of period	3,879	3,879
Net book value
Net book value	892	892
Bank | Operating Segments | Strategic Resolution Unit (old)
Gross amount of goodwill
Balance at end of period	SFr 12	SFr 12

Other intangible assets (Detail

Other intangible assets (Details 1) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Other intangible assets
Other intangible assets (mortgage servicing rights), at fair value	SFr 189	SFr 181	SFr 180
Total other intangible assets, net	245	SFr 239	237
Bank
Other intangible assets
Other intangible assets (mortgage servicing rights), at fair value	189		180
Total other intangible assets, net	SFr 245		SFr 237

Other assets and other liabil_3

Other assets and other liabilities (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Other assets
Cash collateral on derivative instruments	SFr 7,664	SFr 8,817	SFr 7,741
Cash collateral on non-derivative transactions	416	250	635
Derivative instruments used for hedging	457	295	131
Assets held-for-sale	8,169	13,193	7,077
of which loans	8,136	13,160	7,046
allowance for loans held-for-sale	(51)	(51)	(48)
of which real estate	31	27	27
of which long-lived assets	2	6	4
Premises, equipment and right-of-use assets	7,428	7,523	7,376
Assets held for separate accounts	107	107	102
Interest and fees receivable	4,155	4,838	4,255
Deferred tax assets	4,201	3,964	3,667
Prepaid expenses	693	688	448
of which cloud computing arrangement implementation costs	45	43	38
Failed purchases	1,793	1,595	1,451
Defined benefit pension and post-retirement plan assets	3,047	3,073	2,872
Other	4,041	4,559	3,882
Other assets	42,171	48,902	39,637
Other liabilities
Cash collateral on derivative instruments	7,200	8,839	7,831
Cash collateral on non-derivative transactions	215	258	174
Derivative instruments used for hedging	12	39	45
Operating Lease, Liability	2,652	2,740	2,759
Provisions	1,256	1,653	2,080
of which off-balance sheet risk	260	324	311
Restructuring liabilities	25	42	52
Liabilities held for separate accounts	107	107	102
Interest and fees payable	4,128	4,651	4,297
Current tax liabilities	622	569	555
Deferred tax liabilities	578	557	530
Failed sales	1,437	1,090	1,120
Defined benefit pension and post-retirement plan liabilities	414	425	410
Other	10,425	10,733	11,479
Other liabilities	29,071	31,703	31,434
Restricted loans, representing collateral on secured borrowings, included in loans held-for-sale	363	471	262
Foreclosed or repossessed real estate	8	8	8
Foreclosed or repossessed residential real estate	8	8	8
Other assets, held at amortized cost, Allowance for Credit Loss	41	4,447	43
Archegos Capital Management [Member]
Other liabilities
Other assets, held at amortized cost, Allowance for Credit Loss		SFr 4,394
Bank
Other assets
Cash collateral on derivative instruments	7,664		7,741
Cash collateral on non-derivative transactions	416		635
Derivative instruments used for hedging	457		131
Assets held-for-sale	8,169		7,077
of which loans	8,136		7,046
allowance for loans held-for-sale	(51)		(48)
of which real estate	31		27
of which long-lived assets	2		4
Premises, equipment and right-of-use assets	6,263		6,213
Assets held for separate accounts	107		102
Interest and fees receivable	4,225		4,397
Deferred tax assets	4,155		3,630
Prepaid expenses	570		367
of which cloud computing arrangement implementation costs	39		32
Failed purchases	1,793		1,451
Defined benefit pension and post-retirement plan assets	910		975
Other	4,050		3,855
Other assets	38,779		36,574
Other liabilities
Cash collateral on derivative instruments	7,209		7,831
Cash collateral on non-derivative transactions	215		174
Derivative instruments used for hedging	12		45
Operating Lease, Liability	1,896		1,981
Provisions	1,244		2,067
of which off-balance sheet risk	260		311
Restructuring liabilities	25		49
Liabilities held for separate accounts	107		102
Interest and fees payable	4,068		4,397
Current tax liabilities	612		542
Deferred tax liabilities	164		157
Failed sales	1,437		1,120
Defined benefit pension and post-retirement plan liabilities	406		403
Other	10,540		11,472
Other liabilities	27,935		30,340
Restricted loans, representing collateral on secured borrowings, included in loans held-for-sale	363		262
Foreclosed or repossessed real estate	8		8
Foreclosed or repossessed residential real estate	8		8
Other assets, held at amortized cost, Allowance for Credit Loss	SFr 39		SFr 41

Other assets and other liabil_4

Other assets and other liabilities (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Right-of-use assets [Abstract]
Premises, equipment and right-of-use assets	SFr 7,428	SFr 7,523	SFr 7,376
Bank
Right-of-use assets [Abstract]
Premises, equipment and right-of-use assets	SFr 6,263		SFr 6,213

Leases (Details)

Leases (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due, Rolling Maturity [Abstract]
Lease liabilities	SFr 2,652	SFr 2,740	SFr 2,759
Bank
Lessee, Operating Lease, Liability, Payment, Due, Rolling Maturity [Abstract]
Lease liabilities	SFr 1,896		SFr 1,981

Deposits (Details)

Deposits (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Deposits
of which due to banks	SFr 20,948	SFr 19,422	SFr 16,423
of which customer deposits	397,298	SFr 406,069	390,921
Bank
Deposits
of which due to banks	20,948		16,420
of which customer deposits	SFr 398,323		SFr 392,039

Long-term debt (Details)

Long-term debt (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Long-term debt
Senior	SFr 143,874	SFr 141,689	SFr 133,056
Subordinated	25,034	27,196	26,285
Non-recourse liabilities from consolidated VIEs	1,319	1,568	1,746
Long-term debt	170,227	170,453	161,087
of which reported at fair value	69,436	72,312	70,976
Structured notes
Long-term debt
Long-term debt	45,030	SFr 48,210	47,039
Bank
Long-term debt
Senior	96,726		94,768
Subordinated	66,247		63,765
Non-recourse liabilities from consolidated VIEs	1,319		1,746
Long-term debt	164,292		160,279
of which reported at fair value	68,486		70,243
Bank | Structured notes
Long-term debt
Long-term debt	SFr 45,030		SFr 47,039

Long-term debt - Maturities (De

Long-term debt - Maturities (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Long-term debt by maturities
Long-term debt	SFr 170,227	SFr 170,453	SFr 161,087
Structured notes
Long-term debt by maturities
Long-term debt	45,030	48,210	47,039
Structured notes | Equity
Long-term debt by maturities
Long-term debt	29,473	32,230	29,907
Structured notes | Fixed income
Long-term debt by maturities
Long-term debt	12,465	12,705	13,882
Structured notes | Credit
Long-term debt by maturities
Long-term debt	2,700	2,882	2,881
Structured notes | Other
Long-term debt by maturities
Long-term debt	392	SFr 393	369
Bank
Long-term debt by maturities
Long-term debt	164,292		160,279
Bank | Structured notes
Long-term debt by maturities
Long-term debt	45,030		47,039
Bank | Structured notes | Equity
Long-term debt by maturities
Long-term debt	29,473		29,907
Bank | Structured notes | Fixed income
Long-term debt by maturities
Long-term debt	12,465		13,882
Bank | Structured notes | Credit
Long-term debt by maturities
Long-term debt	2,700		2,881
Bank | Structured notes | Other
Long-term debt by maturities
Long-term debt	SFr 392		SFr 369

Accumulated other comprehensi_3

Accumulated other comprehensive income (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	SFr (20,667)	SFr (23,150)		SFr (23,150)
Balance at end of period	(21,697)	(20,667)		(21,697)
Gains/(losses) on cash flow hedges
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	103	206	SFr 253	206	SFr 28
Increase/(decrease)	(19)	(91)	13	(110)	168
Reclassification adjustments, included in net income	(22)	(12)	5	(34)	75
Total increase/(decrease)	(41)	(103)	18	(144)	243
Balance at end of period	62	103	271	62	271
Cumulative translation adjustments
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	(15,534)	(17,528)	(15,064)	(17,528)	(14,469)
Increase/(decrease)	(471)	1,994	(450)	1,523	(1,045)
Reclassification adjustments, included in net income	0	0	17	0	17
Total increase/(decrease)	(471)	1,994	(433)	1,523	(1,028)
Balance at end of period	(16,005)	(15,534)	(15,497)	(16,005)	(15,497)
Unrealized gains/(losses) on securities
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	13	13	28	13	30
Increase/(decrease)	0	0	(47)	0	(52)
Reclassification adjustments, included in net income	0	0	29	0	32
Total increase/(decrease)	0	0	(18)	0	(20)
Balance at end of period	13	13	10	13	10
Actuarial gains/(losses)
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	(3,662)	(3,727)	(3,617)	(3,727)	(3,690)
Increase/(decrease)	(89)	(3)	0	(92)	0
Reclassification adjustments, included in net income	78	68	73	146	146
Total increase/(decrease)	(11)	65	73	54	146
Balance at end of period	(3,673)	(3,662)	(3,544)	(3,673)	(3,544)
Net prior service credit/ (cost)
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	432	456	570	456	604
Increase/(decrease)	0	0	0	0	0
Reclassification adjustments, included in net income	(24)	(24)	(34)	(48)	(68)
Total increase/(decrease)	(24)	(24)	(34)	(48)	(68)
Balance at end of period	408	432	536	408	536
Accumulated Gains (Losses) On Liabilities Related To Credit Risk
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	(2,019)	(2,570)	1,578	(2,570)	(2,772)
Increase/(decrease)	(514)	505	(2,680)	(9)	1,593
Reclassification adjustments, included in net income	31	46	22	77	99
Total increase/(decrease)	(483)	551	(2,658)	68	1,692
Balance at end of period	(2,502)	(2,019)	(1,080)	(2,502)	(1,080)
Accumulated other comprehensive income
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period	(20,667)	(23,150)	(16,252)	(23,150)	(20,269)
Increase/(decrease)	(1,093)	2,405	(3,164)	1,312	664
Reclassification adjustments, included in net income	63	78	112	141	301
Total increase/(decrease)	(1,030)	2,483	(3,052)	1,453	965
Balance at end of period	(21,697)	(20,667)	(19,304)	(21,697)	(19,304)
Bank
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		(20,239)		(20,239)
Balance at end of period	(18,922)			(18,922)
Bank | Gains/(losses) on cash flow hedges
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		205		205	28
Increase/(decrease)				(109)	168
Reclassification adjustments, included in net income				(34)	75
Total increase/(decrease)				(143)	243
Balance at end of period	62		271	62	271
Bank | Cumulative translation adjustments
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		(17,517)		(17,517)	(14,560)
Increase/(decrease)				1,473	(1,015)
Reclassification adjustments, included in net income				0	17
Total increase/(decrease)				1,473	(998)
Balance at end of period	(16,044)		(15,558)	(16,044)	(15,558)
Bank | Unrealized gains/(losses) on securities
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		13		13	30
Increase/(decrease)				0	(52)
Reclassification adjustments, included in net income				0	32
Total increase/(decrease)				0	(20)
Balance at end of period	13		10	13	10
Bank | Actuarial gains/(losses)
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		(460)		(460)	(417)
Increase/(decrease)				(85)	0
Reclassification adjustments, included in net income				0	7
Total increase/(decrease)				(85)	7
Balance at end of period	(545)		(410)	(545)	(410)
Bank | Net prior service credit/ (cost)
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		(11)		(11)	(7)
Increase/(decrease)				(1)	0
Reclassification adjustments, included in net income				1	0
Total increase/(decrease)				0	0
Balance at end of period	(11)		(7)	(11)	(7)
Bank | Accumulated Gains (Losses) On Liabilities Related To Credit Risk
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		(2,469)		(2,469)	(2,620)
Increase/(decrease)				(5)	1,515
Reclassification adjustments, included in net income				77	99
Total increase/(decrease)				72	1,614
Balance at end of period	(2,397)		(1,006)	(2,397)	(1,006)
Bank | Accumulated other comprehensive income
Increase (Decrease) in Accumulated other Comprehensive Income
Balance at beginning of period		SFr (20,239)		(20,239)	(17,546)
Increase/(decrease)				1,273	616
Reclassification adjustments, included in net income				44	230
Total increase/(decrease)				1,317	846
Balance at end of period	SFr (18,922)		SFr (16,700)	SFr (18,922)	SFr (16,700)

AOCI - Additional share informa

AOCI - Additional share information (Details 2) - SFr / shares		3 Months Ended						6 Months Ended
		Jun. 30, 2021		Mar. 31, 2021		Jun. 30, 2020		Jun. 30, 2021		Jun. 30, 2020		Dec. 31, 2020
Common shares issued
Common Stock, Shares, Issued, Beginning Balance		2,447,747,720		2,447,747,720		2,556,011,720		2,447,747,720		2,556,011,720
Issuance of common shares		203,000,000		0		0		203,000,000		0
Common Stock, Shares, Issued, Ending Balance		2,650,747,720		2,447,747,720		2,556,011,720		2,650,747,720		2,556,011,720
Treasury shares
Treasury Stock, Shares, Beginning Balance		83,737,482		41,602,841		156,996,084		41,602,841		119,761,811
Sale of treasury shares		510,392,920		552,731,383		170,488,741		1,063,124,303		409,965,327
Issuance of common shares relating to mandatory convertible notes		203,000,000		0		0		203,000,000		0
Conversion of mandatory convertible notes		106,805		0		0		106,805		0
Repurchase of treasury shares		514,715,462		599,319,336		172,555,047		1,114,034,798		452,618,437
Share-based compensation, net of tax		51,473,883		4,453,312		44,650,431		55,927,195		48,002,962
Treasury Stock, Shares, Ending Balance		239,479,336		83,737,482		114,411,959		239,479,336		114,411,959
Common shares outstanding		2,411,268,384	[1]	2,364,010,238	[2]	2,441,599,761	[2]	2,411,268,384	[1]	2,441,599,761	[2]	2,406,144,879
Par value (in CHF per share)		SFr 0.04		SFr 0.04		SFr 0.04		SFr 0.04		SFr 0.04		SFr 0.04
Authorized shares (in shares)	[3]	3,100,747,720		3,100,747,720				3,100,747,720				3,100,747,720
Unissued shares (in shares)		450,000,000		653,000,000		653,000,000		450,000,000		653,000,000
Capital Instrument Reserved
Treasury shares
Unissued shares (in shares)		111,524,164		111,193,477		111,193,477		111,524,164		111,193,477
Bank
Common shares issued
Common Stock, Shares, Issued, Beginning Balance	[4]			4,399,680,200				4,399,680,200
Common Stock, Shares, Issued, Ending Balance	[4]	4,399,680,200						4,399,680,200
Treasury shares
Common shares outstanding	[4]	4,399,680,200						4,399,680,200				4,399,680,200
Par value (in CHF per share)	[4]	SFr 1						SFr 1				SFr 1
[1]	At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 450,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,524,164 of these shares were reserved for capital instruments.
[2]	At par value CHF 0.04 each, fully paid. In addition to the treasury shares, a maximum of 653,000,000 unissued shares (conditional, conversion and authorized capital) were available for issuance without further approval of the shareholders. 111,193,477 of these shares were reserved for capital instruments.
[3]	Includes issued shares and unissued shares (conditional, conversion and authorized capital).
[4]	The Bank's total share capital is fully paid and consists of 4,399,680,200 registered shares as of June 30, 2021. Each share is entitled to one vote. The Bank has no warrants on its own shares outstanding.

AOCI - Significant reclassifica

AOCI - Significant reclassification adjustments (Details 3) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification adjustments, included in net income
Income tax expense/(benefit)	SFr 566	SFr (526)	SFr 391	SFr 40	SFr 281
Gains/(losses) on cash flow hedges
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	(22)	(12)	5	(34)	75
Cumulative translation adjustments
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	0	0	17	0	17
Unrealized gains/(losses) on securities
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	0	0	29	0	32
Accumulated other comprehensive income
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	63	78	112	141	301
Net prior service credit/ (cost)
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	(24)	(24)	(34)	(48)	(68)
Net prior service credit/ (cost) | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income, before tax	(29)	(30)	(41)	(59)	(83)
Income tax expense/(benefit)	5	6	7	11	15
Actuarial gains/(losses)
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income	78	68	73	146	146
Actuarial gains/(losses) | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income, before tax	95	83	89	178	179
Income tax expense/(benefit)	SFr (17)	SFr (15)	SFr (16)	(32)	(33)
Bank
Reclassification adjustments, included in net income
Income tax expense/(benefit)				6	244
Bank | Gains/(losses) on cash flow hedges
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				(34)	75
Bank | Cumulative translation adjustments
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				0	17
Bank | Unrealized gains/(losses) on securities
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				0	32
Bank | Accumulated other comprehensive income
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				44	230
Bank | Net prior service credit/ (cost)
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				1	0
Bank | Actuarial gains/(losses)
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income				0	7
Bank | Actuarial gains/(losses) | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification adjustments, included in net income
Reclassification adjustments, included in net income, before tax				(2)	7
Income tax expense/(benefit)				SFr 2	SFr 0

Offsetting of financial asset_3

Offsetting of financial assets (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	SFr 115,400		SFr 135,000
Offsetting	(101,700)		(120,600)
of which counterparty netting	(87,700)		(103,200)
of which cash collateral netting	(14,000)		(17,400)
Total net derivatives subject to enforceable master netting agreements	13,700		14,400
Total derivatives not subject to enforceable master netting agreements	10,800		11,200
Total net derivatives presented in the consolidated balance sheets	24,500		25,600
Offsetting of securities purchased under resale agreements and securities borrowing transactions
Securities purchased under resale agreements, gross	74,900		55,800
Securities purchased under resale agreements, offsetting	(14,100)		(7,500)
Securities purchased under resale agreements, net	60,800		48,300
Securities borrowing transactions, gross	9,500		11,900
Securities borrowing transactions, offsetting	(500)		(400)
Securities borrowing transactions, net	9,000		11,500
Total subject to enforceable master netting agreements, gross	84,400		67,700
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total subject to enforceable master netting agreements, net	69,800		59,800
Total not subject to enforceable master netting agreements	24,800		19,300
Total, gross	109,200		87,000
Total, net	94,600		79,100
of which reported at fair value	69,465	SFr 67,268	57,994
Amounts not offset in the consolidated balance sheets
Derivatives, net	13,700		14,400
Derivatives, financial instruments	5,100		5,500
Derivatives, cash collateral received/pledged	0		100
Derivatives, net exposure	8,600		8,800
Securities purchased under resale agreements, net	60,800		48,300
Securities purchased under resale agreements, financial instruments	60,800		48,300
Securities purchased under resale agreements, cash collateral received/pledged	0		0
Securities purchased under resale agreements, net exposure	0		0
Securities borrowing transactions, net	9,000		11,500
Securities borrowing transactions, financial instruments	8,800		11,100
Securities borrowing transactions, cash collateral received/pledged	0		0
Securities borrowing transactions, net exposure	200		400
Total financial assets subject to enforceable master netting agreements, net	83,500		74,200
Total financial assets subject to enforceable master netting agreements, financial instruments	74,700		64,900
Total financial assets subject to enforceable master netting agreements, cash collateral received/pledged	0		100
Total financial assets subject to enforceable master netting agreements, net exposure	8,800		9,200
Trading assets
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	24,100		25,500
Other assets
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	400		100
OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	6,400		7,000
Offsetting	(5,700)		(6,200)
Total net derivatives subject to enforceable master netting agreements	700		800
Amounts not offset in the consolidated balance sheets
Derivatives, net	700		800
OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	85,700		107,500
Offsetting	(74,600)		(94,400)
Total net derivatives subject to enforceable master netting agreements	11,100		13,100
Amounts not offset in the consolidated balance sheets
Derivatives, net	11,100		13,100
Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	23,300		20,500
Offsetting	(21,400)		(20,000)
Total net derivatives subject to enforceable master netting agreements	1,900		500
Amounts not offset in the consolidated balance sheets
Derivatives, net	1,900		500
Interest rate derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	57,300		74,800
Interest rate derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	5,100		6,100
Interest rate derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	52,100		68,200
Interest rate derivatives | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	100		500
Foreign exchange derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	19,300		23,300
Foreign exchange derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	200		200
Foreign exchange derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	19,100		23,100
Equity/index-related derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	32,500		30,600
Equity/index-related derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	9,300		10,700
Equity/index-related derivatives | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	23,200		19,900
Credit derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	4,800		4,600
Credit derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,100		700
Credit derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	3,700		3,900
Other products
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,500		1,700
Other products | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,500		1,600
Other products | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	0		100
Bank
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	115,500		135,000
Offsetting	(101,800)		(120,600)
of which counterparty netting	(87,800)		(103,200)
of which cash collateral netting	(14,000)		(17,400)
Total net derivatives subject to enforceable master netting agreements	13,700		14,400
Total derivatives not subject to enforceable master netting agreements	10,800		11,200
Total net derivatives presented in the consolidated balance sheets	24,500		25,600
Offsetting of securities purchased under resale agreements and securities borrowing transactions
Securities purchased under resale agreements, gross	74,900		55,800
Securities purchased under resale agreements, offsetting	(14,100)		(7,500)
Securities purchased under resale agreements, net	60,800		48,300
Securities borrowing transactions, gross	9,500		11,900
Securities borrowing transactions, offsetting	(500)		(400)
Securities borrowing transactions, net	9,000		11,500
Total subject to enforceable master netting agreements, gross	84,400		67,700
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total subject to enforceable master netting agreements, net	69,800		59,800
Total not subject to enforceable master netting agreements	24,800		19,300
Total, gross	109,200		87,000
Total, net	94,600		79,100
of which reported at fair value	69,465		57,994
Amounts not offset in the consolidated balance sheets
Derivatives, net	13,700		14,400
Derivatives, financial instruments	5,100		5,500
Derivatives, cash collateral received/pledged	0		100
Derivatives, net exposure	8,600		8,800
Securities purchased under resale agreements, net	60,800		48,300
Securities purchased under resale agreements, financial instruments	60,800		48,300
Securities purchased under resale agreements, cash collateral received/pledged	0		0
Securities purchased under resale agreements, net exposure	0		0
Securities borrowing transactions, net	9,000		11,500
Securities borrowing transactions, financial instruments	8,800		11,100
Securities borrowing transactions, cash collateral received/pledged	0		0
Securities borrowing transactions, net exposure	200		400
Total financial assets subject to enforceable master netting agreements, net	83,500		74,200
Total financial assets subject to enforceable master netting agreements, financial instruments	74,700		64,900
Total financial assets subject to enforceable master netting agreements, cash collateral received/pledged	0		100
Total financial assets subject to enforceable master netting agreements, net exposure	8,800		9,200
Bank | Trading assets
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	24,100		25,500
Bank | Other assets
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	400		100
Bank | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	6,400		7,000
Offsetting	(5,700)		(6,200)
Total net derivatives subject to enforceable master netting agreements	700		800
Amounts not offset in the consolidated balance sheets
Derivatives, net	700		800
Bank | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	85,800		107,500
Offsetting	(74,700)		(94,400)
Total net derivatives subject to enforceable master netting agreements	11,100		13,100
Amounts not offset in the consolidated balance sheets
Derivatives, net	11,100		13,100
Bank | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	23,300		20,500
Offsetting	(21,400)		(20,000)
Total net derivatives subject to enforceable master netting agreements	1,900		500
Amounts not offset in the consolidated balance sheets
Derivatives, net	1,900		500
Bank | Interest rate derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	57,400		74,800
Bank | Interest rate derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	5,100		6,100
Bank | Interest rate derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	52,200		68,200
Bank | Interest rate derivatives | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	100		500
Bank | Foreign exchange derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	19,300		23,300
Bank | Foreign exchange derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	200		200
Bank | Foreign exchange derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	19,100		23,100
Bank | Equity/index-related derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	32,500		30,600
Bank | Equity/index-related derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	9,300		10,700
Bank | Equity/index-related derivatives | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	23,200		19,900
Bank | Credit derivatives
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	4,800		4,600
Bank | Credit derivatives | OTC-cleared
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,100		700
Bank | Credit derivatives | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	3,700		3,900
Bank | Other products
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,500		1,700
Bank | Other products | OTC
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	1,500		1,600
Bank | Other products | Exchange-traded
Offsetting of derivatives
Derivative assets, gross, subject to enforceable master netting agreements	SFr 0		SFr 100

Offsetting of financial liabili

Offsetting of financial liabilities (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	SFr 116,000		SFr 140,700
Offsetting	(108,900)		(130,000)
of which counterparty netting	(87,700)		(103,200)
of which cash collateral netting	(21,200)		(26,800)
Total net derivatives subject to enforceable master netting agreements	7,100		10,700
Total derivatives not subject to enforceable master netting agreements	5,200		6,800
Total net derivatives presented in the consolidated balance sheets	12,300		17,500
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Securities sold under repurchase agreements, gross	29,500		26,000
Securities sold under repurchase agreements, offsetting	(14,600)		(7,900)
Securities sold under repurchase agreements, net	14,900		18,100
Securities lending transactions, gross	3,000		3,500
Securities lending transactions, offsetting	0		0
Securities lending transactions, net	3,000		3,500
Obligation to return securities received as collateral, at fair value, gross	37,700		49,900
Obligation to return securities received as collateral, at fair value, offsetting	0		0
Obligation to return securities received as collateral, at fair value, net	37,700		49,900
Total subject to enforceable master netting agreements, gross	70,200		79,400
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total subject to enforceable master netting agreements, net	55,600		71,500
Total not subject to enforceable master netting agreements	4,000		3,100
Total, gross	74,200		82,500
Total, net	59,600		74,600
of which reported at fair value	10,983	SFr 9,591	13,594
Amounts not offset in the consolidated balance sheets
Derivatives, net	7,100		10,700
Derivatives, financial instruments	1,400		2,200
Derivatives, cash collateral received/pledged	0		0
Derivatives, net exposure	5,700		8,500
Securities sold under repurchase agreements, net	14,900		18,100
Securities sold under repurchase agreements, financial instruments	14,900		18,100
Securities sold under repurchase agreements, cash collateral received/pledged	0		0
Securities sold under repurchase agreements, net exposure	0		0
Securities lending transactions, net	3,000		3,500
Securities lending transactions, financial instruments	2,600		3,200
Securities lending transactions, cash collateral received/pledged	0		0
Securities lending transactions, net exposure	400		300
Obligation to return securities received as collateral, at fair value, net	37,700		49,900
Obligation to return securities received as collateral, financial instruments	32,400		43,400
Obligation to return securities received as collateral, cash collateral received/pledged	0		0
Obligation to return securities received as collateral, at fair value, net exposure	5,300		6,500
Total financial liabilities subject to enforceable master netting agreements, net	62,700		82,200
Total financial liabilities subject to enforceable master netting agreements, financial instruments	51,300		66,900
Total financial liabilities subject to enforceable master netting agreements, cash collateral received/pledged	0		0
Total financial liabilities subject to enforceable master netting agreements, net exposure	11,400		15,300
Trading liabilities
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	12,300		17,500
Other liabilities
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	0		0
Securities sold under repurchase agreements and securities
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total, gross	35,500		31,700
Total, net	20,900		23,800
Obligation to return securities received as collateral
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Total subject to enforceable master netting agreements, offsetting	0		0
Total, gross	38,700		50,800
Total, net	38,700		50,800
OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	5,100		5,500
Offsetting	(5,000)		(5,400)
Total net derivatives subject to enforceable master netting agreements	100		100
Amounts not offset in the consolidated balance sheets
Derivatives, net	100		100
OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	88,700		114,100
Offsetting	(82,400)		(104,300)
Total net derivatives subject to enforceable master netting agreements	6,300		9,800
Amounts not offset in the consolidated balance sheets
Derivatives, net	6,300		9,800
Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	22,200		21,100
Offsetting	(21,500)		(20,300)
Total net derivatives subject to enforceable master netting agreements	700		800
Amounts not offset in the consolidated balance sheets
Derivatives, net	700		800
Interest rate derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	52,400		70,900
Interest rate derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	3,700		4,600
Interest rate derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	48,600		65,700
Interest rate derivatives | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	100		600
Foreign exchange derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	20,600		27,900
Foreign exchange derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	200		200
Foreign exchange derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	20,400		27,700
Equity/index-related derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	36,200		35,500
Equity/index-related derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	14,100		15,100
Equity/index-related derivatives | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	22,100		20,400
Credit derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	5,900		5,600
Credit derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	1,200		700
Credit derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	4,700		4,900
Other products
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	900		800
Other products | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	900		700
Other products | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	0		100
Bank
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	116,000		140,800
Offsetting	(108,900)		(130,100)
of which counterparty netting	(87,800)		(103,200)
of which cash collateral netting	(21,100)		(26,900)
Total net derivatives subject to enforceable master netting agreements	7,100		10,700
Total derivatives not subject to enforceable master netting agreements	5,200		6,800
Total net derivatives presented in the consolidated balance sheets	12,300		17,500
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Securities sold under repurchase agreements, gross	29,600		26,100
Securities sold under repurchase agreements, offsetting	(14,600)		(7,900)
Securities sold under repurchase agreements, net	15,000		18,200
Securities lending transactions, gross	3,000		3,500
Securities lending transactions, offsetting	0		0
Securities lending transactions, net	3,000		3,500
Obligation to return securities received as collateral, at fair value, gross	37,700		49,900
Obligation to return securities received as collateral, at fair value, offsetting	0		0
Obligation to return securities received as collateral, at fair value, net	37,700		49,900
Total subject to enforceable master netting agreements, gross	70,300		79,500
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total subject to enforceable master netting agreements, net	55,700		71,600
Total not subject to enforceable master netting agreements	4,000		3,100
Total, gross	74,300		82,600
Total, net	59,700		74,700
of which reported at fair value	11,080		13,688
Amounts not offset in the consolidated balance sheets
Derivatives, net	7,100		10,700
Derivatives, financial instruments	1,400		2,200
Derivatives, cash collateral received/pledged	0		0
Derivatives, net exposure	5,700		8,500
Securities sold under repurchase agreements, net	15,000		18,200
Securities sold under repurchase agreements, financial instruments	15,000		18,200
Securities sold under repurchase agreements, cash collateral received/pledged	0		0
Securities sold under repurchase agreements, net exposure	0		0
Securities lending transactions, net	3,000		3,500
Securities lending transactions, financial instruments	2,600		3,200
Securities lending transactions, cash collateral received/pledged	0		0
Securities lending transactions, net exposure	400		300
Obligation to return securities received as collateral, at fair value, net	37,700		49,900
Obligation to return securities received as collateral, financial instruments	32,400		43,400
Obligation to return securities received as collateral, cash collateral received/pledged	0		0
Obligation to return securities received as collateral, at fair value, net exposure	5,300		6,500
Total financial liabilities subject to enforceable master netting agreements, net	62,800		82,300
Total financial liabilities subject to enforceable master netting agreements, financial instruments	51,400		67,000
Total financial liabilities subject to enforceable master netting agreements, cash collateral received/pledged	0		0
Total financial liabilities subject to enforceable master netting agreements, net exposure	11,400		15,300
Bank | Trading liabilities
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	12,300		17,500
Bank | Other liabilities
Offsetting of derivatives
Total net derivatives presented in the consolidated balance sheets	0		0
Bank | Securities sold under repurchase agreements and securities
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Total subject to enforceable master netting agreements, offsetting	(14,600)		(7,900)
Total, gross	35,600		31,800
Total, net	21,000		23,900
Bank | Obligation to return securities received as collateral
Offsetting of securities sold under repurchase agreements, securities lending transactions and obligation to return securities received as collateral
Total subject to enforceable master netting agreements, offsetting	0		0
Total, gross	38,700		50,800
Total, net	38,700		50,800
Bank | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	5,100		5,500
Offsetting	(5,000)		(5,400)
Total net derivatives subject to enforceable master netting agreements	100		100
Amounts not offset in the consolidated balance sheets
Derivatives, net	100		100
Bank | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	88,700		114,200
Offsetting	(82,400)		(104,400)
Total net derivatives subject to enforceable master netting agreements	6,300		9,800
Amounts not offset in the consolidated balance sheets
Derivatives, net	6,300		9,800
Bank | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	22,200		21,100
Offsetting	(21,500)		(20,300)
Total net derivatives subject to enforceable master netting agreements	700		800
Amounts not offset in the consolidated balance sheets
Derivatives, net	700		800
Bank | Interest rate derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	52,400		70,900
Bank | Interest rate derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	3,700		4,600
Bank | Interest rate derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	48,600		65,700
Bank | Interest rate derivatives | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	100		600
Bank | Foreign exchange derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	20,600		27,900
Bank | Foreign exchange derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	200		200
Bank | Foreign exchange derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	20,400		27,700
Bank | Equity/index-related derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	36,200		35,500
Bank | Equity/index-related derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	14,100		15,100
Bank | Equity/index-related derivatives | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	22,100		20,400
Bank | Credit derivatives
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	5,900		5,600
Bank | Credit derivatives | OTC-cleared
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	1,200		700
Bank | Credit derivatives | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	4,700		4,900
Bank | Other products
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	900		900
Bank | Other products | OTC
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	900		800
Bank | Other products | Exchange-traded
Offsetting of derivatives
Derivative liabilities, gross, subject to enforceable master netting agreements	SFr 0		SFr 100

Tax - Income statement related_

Tax - Income statement related/reconciliation of tax rate (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income from continuing operations before taxes (CHF)
Income/(loss) before taxes	SFr 813	SFr (757)	SFr 1,551	SFr 56	SFr 2,752
Current and deferred taxes
Deferred income tax expense				(302)	134
Income tax expense	566	(526)	391	40	281
Reconciliation of taxes computed at the Swiss statutory rate
Income tax expense computed at the statutory tax rate	SFr 150
Swiss statutory rate (as a percent)	18.50%
Increase/(decrease) in income taxes resulting from:
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	SFr (45)
Changes in tax law and rates	(31)
Other non-deductible expenses	140
Lower taxed income	(40)
of which tax benefit in respect to non-taxable dividend income	13
of which tax benefit related non-taxable life insurance income	26
(Income)/loss taxable to non-controlling interests	(15)
Changes in deferred tax valuation allowance	292
(Windfall tax benefits)/shortfall tax charges on share-based compensation	31
Other	54
of which tax expense or benefit relating to the (establishment) or release of tax contingency accruals	5
of which tax expense relating to non-recoverable foreign and withholding taxes	26
of which tax (benefit)/charge from the impact of prior year adjustments	(22)
of which tax expense from own-credit revaluation gains	7
of which tax impact of transitional adjustments arising from adoption of new accounting standards	25
of which tax impact of the US Base Erosion and Anti-abuse Tax (BEAT), for 2021	10
Income tax expense	566	SFr (526)	SFr 391	40	281
Switzerland
Increase/(decrease) in income taxes resulting from:
Changes in deferred tax valuation allowance	(18)
UK
Increase/(decrease) in income taxes resulting from:
of which tax rate change	(31)
Changes in deferred tax valuation allowance	SFr 310
Bank
Income from continuing operations before taxes (CHF)
Income/(loss) before taxes				15	2,582
Current and deferred taxes
Deferred income tax expense				(322)	110
Income tax expense				6	244
Reconciliation of taxes computed at the Swiss statutory rate
Income tax expense computed at the statutory tax rate				SFr 3
Swiss statutory rate (as a percent)				18.50%
Increase/(decrease) in income taxes resulting from:
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount				SFr (50)
Changes in tax law and rates				(27)
Other non-deductible expenses				49
Lower taxed income				(7)
of which tax benefit in respect to non-taxable dividend income				3
of which tax benefit related non-taxable life insurance income				4
(Income)/loss taxable to non-controlling interests				(2)
Changes in deferred tax valuation allowance				49
(Windfall tax benefits)/shortfall tax charges on share-based compensation				29
Other				(42)
of which tax expense or benefit relating to the (establishment) or release of tax contingency accruals				(10)
of which tax expense relating to non-recoverable foreign and withholding taxes				5
of which tax (benefit)/charge from the impact of prior year adjustments				(44)
of which tax impact of transitional adjustments arising from adoption of new accounting standards				4
of which tax impact of the US Base Erosion and Anti-abuse Tax (BEAT), for 2020				1
Income tax expense				6	SFr 244
Bank | Switzerland
Increase/(decrease) in income taxes resulting from:
Changes in deferred tax valuation allowance				(5)
Bank | UK
Increase/(decrease) in income taxes resulting from:
of which tax rate change				(27)
Changes in deferred tax valuation allowance				SFr 54

Tax - Balance sheet related (De

Tax - Balance sheet related (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Tax effect of temporary differences
Net operating loss carry-forwards, after allocation of valuation allowances	SFr 1,380	SFr 1,011
Net deferred tax assets	3,623	SFr 3,407
Bank
Tax effect of temporary differences
Net operating loss carry-forwards, after allocation of valuation allowances	1,371		SFr 1,064
Net deferred tax assets	SFr 3,991		SFr 3,473

Tax - Net deferred tax assets_l

Tax - Net deferred tax assets/liabilities by type (Details 3) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Net deferred tax assets
Deferred tax assets	SFr 4,201	SFr 3,964		SFr 4,201		SFr 3,667
Net operating loss carry-forwards, after allocation of valuation allowances	1,380	1,011		1,380
Temporary differences	2,821	2,953		2,821
Deferred tax liabilities	578	557		578		530
Deferred Tax Assets (Liabilities), Net	3,623	SFr 3,407		3,623
Accumulated undistributed earnings from foreign subsidiaries	SFr 19,400			SFr 19,400
Effective tax rate
Effective tax rate (as a percent)	69.60%	69.50%	25.20%	71.40%	10.20%
Minimum
Net deferred tax assets
Decrease in Unrecognized Tax Benefits is Reasonably Possible	SFr 0			SFr 0
Maximum
Net deferred tax assets
Decrease in Unrecognized Tax Benefits is Reasonably Possible	60			60
Bank
Net deferred tax assets
Deferred tax assets	4,155			4,155		3,630
Net operating loss carry-forwards, after allocation of valuation allowances	1,371			1,371		1,064
Temporary differences	2,784			2,784		2,566
Deferred tax liabilities	164			164		157
Deferred Tax Assets (Liabilities), Net	3,991			3,991		SFr 3,473
Accumulated undistributed earnings from foreign subsidiaries	19,000			SFr 19,000
Effective tax rate
Effective tax rate (as a percent)				40.00%	9.50%
Bank | Minimum
Net deferred tax assets
Decrease in Unrecognized Tax Benefits is Reasonably Possible	0			SFr 0
Bank | Maximum
Net deferred tax assets
Decrease in Unrecognized Tax Benefits is Reasonably Possible	SFr 60			SFr 60

Deferred compensation expense (

Deferred compensation expense (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Deferred compensation expense
Total compensation expense relating to deferred compensation	SFr 464	SFr 366	SFr 512	SFr 830	SFr 785
Deferred cash awards
Deferred compensation expense
Total compensation expense relating to deferred compensation	102	49	138	151	148
Retention Awards
Deferred compensation expense
Total compensation expense relating to deferred compensation	26	13	10	39	19
Contingent Capital Awards (CCA)
Deferred compensation expense
Total compensation expense relating to deferred compensation	83	61	100	144	86
Performance shares | Performance share awards
Deferred compensation expense
Total compensation expense relating to deferred compensation	111	109	120	220	233
Stock compensation plan | Share awards
Deferred compensation expense
Total compensation expense relating to deferred compensation	SFr 142	SFr 134	SFr 144	276	299
Bank
Deferred compensation expense
Total compensation expense relating to deferred compensation				827	754
Bank | Deferred cash awards
Deferred compensation expense
Total compensation expense relating to deferred compensation				169	143
Bank | Retention Awards
Deferred compensation expense
Total compensation expense relating to deferred compensation				39	19
Bank | Contingent Capital Awards (CCA)
Deferred compensation expense
Total compensation expense relating to deferred compensation				140	83
Bank | Performance shares | Performance share awards
Deferred compensation expense
Total compensation expense relating to deferred compensation				213	220
Bank | Stock compensation plan | Share awards
Deferred compensation expense
Total compensation expense relating to deferred compensation				SFr 266	SFr 289

Estimated unrecognized deferred

Estimated unrecognized deferred compensation (Details 2) SFr in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021CHF (SFr)	Jun. 30, 2021CHF (SFr)
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	SFr 1,977	SFr 1,977
Aggregate remaining weighted-average requisite service period (years)
Aggregate remaining requisite service period (in years)	1 year 3 months 18 days
Deferred cash awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	SFr 333	333
Retention Awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	307	307
Contingent Capital Awards (CCA)
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	275	275
Performance shares | Performance share awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	392	392
Stock compensation plan | Share awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	670	670
Bank
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	1,933	SFr 1,933
Aggregate remaining weighted-average requisite service period (years)
Aggregate remaining requisite service period (in years)		1 year 3 months 18 days
Bank | Deferred cash awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	331	SFr 331
Bank | Retention Awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	307	307
Bank | Contingent Capital Awards (CCA)
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	265	265
Bank | Performance shares | Performance share awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	378	378
Bank | Stock compensation plan | Share awards
Estimated unrecognized compensation expense
Total estimated unrecognized compensation expense	SFr 652	SFr 652

Share-based awards (Details 3)

Share-based awards (Details 3) - CHF (SFr) SFr / shares in Units, shares in Millions, SFr in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total estimated unrecognized compensation expense	SFr 1,977	SFr 1,977
Performance shares | Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total estimated unrecognized compensation expense	SFr 392	SFr 392
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Beginning Balance	126.3	91.7
Granted (in shares)	0	37.8
Settled (in shares)	(30.1)	(33)
Forfeited (in shares)	(0.7)	(1)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance	95.5	95.5
of which vested (in shares)	13.9	13.9	13.9
of which unvested (in shares)	81.6	81.6	81.6
Stock compensation plan | Share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total estimated unrecognized compensation expense	SFr 670	SFr 670
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Beginning Balance	175.1	126.3
Granted (in shares)	24.1	78.1
Settled (in shares)	(45.7)	(50.4)
Forfeited (in shares)	(2.4)	(2.9)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance	151.1	151.1
of which vested (in shares)	12.8	12.8	12.8
of which unvested (in shares)	138.3	138.3	138.3
Bank
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total estimated unrecognized compensation expense	SFr 1,933	SFr 1,933
Bank | Performance shares | Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award		In 6M21, the Bank granted 36.6 million performance share awards at a weighted-average share price of CHF 12.44. Performance share awards are similar to share awards, except that the full balance of outstanding performance share awards, including those awarded in prior years, are subject to performance-based malus provisions.
Total estimated unrecognized compensation expense	SFr 378	SFr 378
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted-average grant-date fair value - Granted (in CHF per share)		SFr 12.44
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Beginning Balance		88
Granted (in shares)		36.6
Settled (in shares)		(31.8)
Forfeited (in shares)		(1)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance	91.8	91.8
of which vested (in shares)	13	13
of which unvested (in shares)	78.8	78.8
Bank | Stock compensation plan | Share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award		In 6M21, the Bank granted 76.5 million share awards at a weighted-average share price of CHF 11.52. Each share award granted entitles the holder of the award to receive one Group share, subject to service conditions. Share awards vest over three years with one third of the share awards vesting on each of the three anniversaries of the grant date (ratable vesting), with the exception of awards granted to individuals classified as risk managers or senior managers under the UK Prudential Regulatory Authority (PRA) Remuneration Code or similar regulations in other jurisdictions. Under the UK PRA Remuneration Code or similar regulations in other jurisdictions, share awards granted to risk managers vest over five years with one fifth of the award vesting on each of the five anniversaries of the grant date, while share awards granted to senior managers vest over five years commencing on the third anniversary of the grant date, with one fifth of the award vesting on each of the third to seventh anniversaries of the grant date. Share awards are expensed over the service period of the awards.
Vesting period		3 years
Total estimated unrecognized compensation expense	SFr 652	SFr 652
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted-average grant-date fair value - Granted (in CHF per share)		SFr 11.52
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Beginning Balance		115.2
Granted (in shares)		76.5
Settled (in shares)		(47.7)
Forfeited (in shares)		(2.7)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance	141.3	141.3
of which vested (in shares)	11.3	11.3
of which unvested (in shares)	130	130
Bank | Stock compensation plan | Share awards | UK PRA staff or similuar regulations, Risk takers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
Bank | Stock compensation plan | Share awards | UK PRA staff or similuar regulations, Senior managemement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		7 years

Cash-based awards (Details 5)

Cash-based awards (Details 5) SFr in Millions	6 Months Ended
	Jun. 30, 2021CHF (SFr)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Estimated unrecognized compensation expense	SFr 1,977
Contingent Capital Awards (CCA)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Estimated unrecognized compensation expense	275
Bank
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Estimated unrecognized compensation expense	SFr 1,933
Bank | Contingent Capital Awards (CCA)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description	In 6M21, the Bank awarded CHF 245 million of CCA. CCA are scheduled to vest on the third anniversary of the grant date, other than those granted to individuals classified as risk managers or senior managers under the UK PRA Remuneration Code or similar regulations in other jurisdictions, where CCA vest on the fifth and seventh anniversaries of the grant date, respectively, and will be expensed over the vesting period.
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	SFr 245
Estimated unrecognized compensation expense	SFr 265
Bank | Contingent Capital Awards (CCA) | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Maximum Contractual Term	3 years
Bank | Contingent Capital Awards (CCA) | UK PRA staff or similuar regulations, Risk takers | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Maximum Contractual Term	5 years
Bank | Contingent Capital Awards (CCA) | UK PRA staff or similuar regulations, Senior managemement | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Maximum Contractual Term	7 years

Other variable compensation (De

Other variable compensation (Details 6) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2021
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation	SFr 464	SFr 366	SFr 512	SFr 830	SFr 785
Estimated unrecognized compensation expense	1,977			1,977
Retention Awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation	26	13	10	39	19
Estimated unrecognized compensation expense	307			307
Deferred cash retention awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	235			SFr 235		SFr 24
Compensation expense relating to deferred compensation	26
Compensation expense relating to deferred compensation, of which granted in current year	9
Deferred cash retention awards | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description				In 2Q21, the Group granted deferred cash and share retention awards of CHF 235 million, mainly in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Amortization of retention awards in 2Q21 totaled CHF 26 million, of which CHF 9 million was related to awards granted in 2Q21. In 3Q21, the Group granted deferred share retention awards of CHF 24 million in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date.
Deferred cash awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation	102	SFr 49	SFr 138	SFr 151	148
Estimated unrecognized compensation expense	333			333
Deferred fixed cash awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	12			SFr 12		95
Compensation expense relating to deferred compensation	32
Compensation expense relating to deferred compensation, of which granted in current year	3
Deferred fixed cash awards | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description				In 2Q21, the Group granted deferred fixed cash compensation of CHF 12 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date. Amortization of this compensation in 2Q21 totaled CHF 32 million, of which CHF 3 million was related to awards granted in 2Q21. In 3Q21, the Group granted deferred fixed cash compensation of CHF 95 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date.
Bank
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation				SFr 827	754
Estimated unrecognized compensation expense	1,933			SFr 1,933
Bank | Other variable compensation | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description				In 6M21, the Bank granted deferred fixed cash compensation of CHF 163 million to certain employees in the Americas. This compensation will be expensed in the Investment Bank and International Wealth Management divisions over a three-year vesting period from the grant date. Amortization of this compensation in 6M21 totaled CHF 67 million, of which CHF 44 million was related to awards granted in 6M21. In 3Q21, the Bank granted deferred fixed cash compensation of CHF 95 million to certain employees in the Americas. This compensation will be expensed mainly in the Investment Bank division over a three-year vesting period from the grant date.
Deferred Compensation Arrangement with Individual, Maximum Contractual Term				3 years
Bank | Retention Awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation				SFr 39	19
Estimated unrecognized compensation expense	307			307
Bank | Upfront cash award
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	59			59
Compensation expense relating to deferred compensation				43
Compensation expense relating to deferred compensation, of which granted in current year				SFr 15
Bank | Upfront cash award | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description				In 6M21, the Bank granted upfront cash awards of CHF 59 million to certain managing directors and directors in the International Wealth Management division. Amortization of this compensation in 6M21 totaled CHF 43 million, of which CHF 15 million was related to awards granted in 6M21.
Bank | Deferred cash retention awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	322			SFr 322		24
Compensation expense relating to deferred compensation				39
Compensation expense relating to deferred compensation, of which granted in current year				SFr 31
Bank | Deferred cash retention awards | Cliff vesting [Member]
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Description				In 6M21, the Bank granted deferred cash and share retention awards of CHF 322 million, mainly in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date. Amortization of retention awards in 6M21 totaled CHF 39 million, of which CHF 31 million was related to awards granted in 6M21. In 3Q21, the Bank granted deferred share retention awards of CHF 24 million in the Investment Bank division. These awards will be expensed over the applicable vesting period from the grant date.
Bank | Deferred cash awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Compensation expense relating to deferred compensation				SFr 169	SFr 143
Estimated unrecognized compensation expense	331			331
Bank | Deferred fixed cash awards
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	SFr 163			163		SFr 95
Compensation expense relating to deferred compensation				67
Compensation expense relating to deferred compensation, of which granted in current year				SFr 44

Pension and other post-retire_3

Pension and other post-retirement benefits - Obligation and funded status (Details) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Total benefit costs
Service costs on benefit obligation	SFr 60	SFr 60	SFr 55	SFr 120	SFr 109
Interest costs on benefit obligation	15	15	23	30	47
Expected return on plan assets	(120)	(123)	(109)	(243)	(219)
Amortization of recognized prior service cost/(credit)	(31)	(29)	(41)	(60)	(83)
Amortization of recognized actuarial losses/(gains)	93	93	87	186	174
Settlement losses/(gains)	2	(10)	2	(8)	5
Curtailment losses/(gains)	2	(1)	0	1	0
Special termination benefits	3	10	0	13	3
Net periodic benefit/(costs)	24	15	17	39	36
PBO
Service costs	60	60	55	120	109
Interest costs	15	15	23	30	47
Total amount recognized
Noncurrent assets	3,047	3,073		3,047		SFr 2,872
Pension and Other Postretirement Benefit Contributions
Contributions expected to be made by the company by the end of the current fiscal year	338			338
Contributions made to defined benefit pension plans and other post-retirement defined benefit plans				180
Defined benefit and defined contribution
Total benefit costs
Service costs on benefit obligation	120	130	113	250	263
PBO
Service costs	120	SFr 130	SFr 113	250	263
Bank
Total amount recognized
Noncurrent assets	SFr 910			910		SFr 975
Bank | Defined benefit and defined contribution
Total benefit costs
Service costs on benefit obligation				250	272
PBO
Service costs				250	272
Bank | International
Total benefit costs
Service costs on benefit obligation				7	8
Interest costs on benefit obligation				25	37
Expected return on plan assets				(34)	(44)
Amortization of recognized prior service cost/(credit)				1	1
Amortization of recognized actuarial losses/(gains)				8	7
Settlement losses/(gains)				(10)	0
Net periodic benefit/(costs)				(3)	9
PBO
Service costs				7	8
Interest costs				25	SFr 37
Bank | International | Defined benefit pension plans
Pension and Other Postretirement Benefit Contributions
Contributions previously expected to be made by the company by the end of the current fiscal year				16
Contributions made to defined benefit pension plans and other post-retirement defined benefit plans				10
Bank | International | Other post-retirement defined benefit plans
Pension and Other Postretirement Benefit Contributions
Contributions previously expected to be made by the company by the end of the current fiscal year				11
Contributions made to defined benefit pension plans and other post-retirement defined benefit plans				SFr 5

Pension and other post-retire_4

Pension and other post-retirement benefits - Contributions (Details 7) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Contribution Pension and Other Postretirement Plans Disclosure
Contributions made by the Entity to defined contribution pension plans	SFr 60	SFr 70	SFr 58	SFr 130	SFr 154
Bank
Defined Contribution Pension and Other Postretirement Plans Disclosure
Contributions made by the Entity to defined contribution pension plans				SFr 243	SFr 264

Pension and other post-retire_5

Pension and other post-retirement benefits (Details 11) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Actuarial gains/(losses)
Increase (Decrease) in Accumulated other Comprehensive Income
OCI, before Reclassifications, Net of Tax, Attributable to Parent	SFr (89)	SFr (3)	SFr 0	SFr (92)	SFr 0
Net prior service credit/ (cost)
Increase (Decrease) in Accumulated other Comprehensive Income
OCI, before Reclassifications, Net of Tax, Attributable to Parent	SFr 0	SFr 0	SFr 0	0	0
Bank | Actuarial gains/(losses)
Increase (Decrease) in Accumulated other Comprehensive Income
OCI, before Reclassifications, Net of Tax, Attributable to Parent				(85)	0
Bank | Net prior service credit/ (cost)
Increase (Decrease) in Accumulated other Comprehensive Income
OCI, before Reclassifications, Net of Tax, Attributable to Parent				SFr (1)	SFr 0

Derivatives and hedging activ_3

Derivatives and hedging activities - Fair value - balance sheet related (Details) - CHF (SFr) SFr in Billions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Fair value of derivative instruments
Notional amount	SFr 18,185.1	SFr 17,735.7
Positive replacement value (PRV)	126.2	146.2
Negative replacement value (NRV)	SFr 121.2	147.5
Cash flow hedges
Maximum Length of Time Hedged in Cash Flow Hedge	12 months
Not designated for hedge accounting
Fair value of derivative instruments
Notional amount	SFr 18,023.5	17,595.7
Positive replacement value (PRV)	125.3	145.2
Negative replacement value (NRV)	120.9	147.3
Not designated for hedge accounting | Interest rate derivatives
Fair value of derivative instruments
Notional amount	14,717.9	14,690.6
Positive replacement value (PRV)	57.8	74.9
Negative replacement value (NRV)	53.4	71.6
Not designated for hedge accounting | Interest rate derivatives | Forwards and forward rate agreements
Fair value of derivative instruments
Notional amount	4,305.9	5,221.5
Positive replacement value (PRV)	1.4	2.7
Negative replacement value (NRV)	1.3	2.8
Not designated for hedge accounting | Interest rate derivatives | Swaps
Fair value of derivative instruments
Notional amount	9,045.8	8,087.8
Positive replacement value (PRV)	43.3	53.5
Negative replacement value (NRV)	39.1	50.2
Not designated for hedge accounting | Interest rate derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	884.8	968.6
Positive replacement value (PRV)	13	18.2
Negative replacement value (NRV)	12.8	18
Not designated for hedge accounting | Interest rate derivatives | Futures
Fair value of derivative instruments
Notional amount	341.3	296.6
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Not designated for hedge accounting | Interest rate derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	140.1	116.1
Positive replacement value (PRV)	0.1	0.5
Negative replacement value (NRV)	0.2	0.6
Not designated for hedge accounting | Foreign exchange derivatives
Fair value of derivative instruments
Notional amount	1,609.8	1,520.3
Positive replacement value (PRV)	19.8	24.4
Negative replacement value (NRV)	21.1	28.9
Not designated for hedge accounting | Foreign exchange derivatives | Forwards
Fair value of derivative instruments
Notional amount	996.1	928.4
Positive replacement value (PRV)	7.8	10.1
Negative replacement value (NRV)	6.6	11.8
Not designated for hedge accounting | Foreign exchange derivatives | Swaps
Fair value of derivative instruments
Notional amount	355.3	345.8
Positive replacement value (PRV)	9.6	10.9
Negative replacement value (NRV)	11.8	13.4
Not designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	240.3	236.3
Positive replacement value (PRV)	2.4	3.4
Negative replacement value (NRV)	2.7	3.7
Not designated for hedge accounting | Foreign exchange derivatives | Futures
Fair value of derivative instruments
Notional amount	17.5	8.8
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Not designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0.6	1
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Not designated for hedge accounting | Credit derivatives
Fair value of derivative instruments
Notional amount	594.3	467.8
Positive replacement value (PRV)	5.1	4.9
Negative replacement value (NRV)	6.3	6
Not designated for hedge accounting | Equity/index-related derivatives
Fair value of derivative instruments
Notional amount	1,031	864.4
Positive replacement value (PRV)	40.9	39.2
Negative replacement value (NRV)	39	39.8
Not designated for hedge accounting | Equity/index-related derivatives | Forwards
Fair value of derivative instruments
Notional amount	1	1
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0.3	0.3
Not designated for hedge accounting | Equity/index-related derivatives | Swaps
Fair value of derivative instruments
Notional amount	121.3	167.6
Positive replacement value (PRV)	1.9	4.3
Negative replacement value (NRV)	4.7	8.8
Not designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	258.8	218.3
Positive replacement value (PRV)	15.7	14.9
Negative replacement value (NRV)	11.8	10
Not designated for hedge accounting | Equity/index-related derivatives | Futures
Fair value of derivative instruments
Notional amount	41.6	23.5
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Not designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	608.3	454
Positive replacement value (PRV)	23.3	20
Negative replacement value (NRV)	22.2	20.7
Not designated for hedge accounting | Other products
Fair value of derivative instruments
Notional amount	70.5	52.6
Positive replacement value (PRV)	1.7	1.8
Negative replacement value (NRV)	1.1	1
Not designated for hedge accounting | Other products | Forwards
Fair value of derivative instruments
Notional amount	16	12.2
Positive replacement value (PRV)	0.2	0.3
Negative replacement value (NRV)	0.2	0.2
Not designated for hedge accounting | Other products | Swaps
Fair value of derivative instruments
Notional amount	11.4	9.8
Positive replacement value (PRV)	1.1	1.1
Negative replacement value (NRV)	0.6	0.5
Not designated for hedge accounting | Other products | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	18.4	14.8
Positive replacement value (PRV)	0.3	0.3
Negative replacement value (NRV)	0.2	0.2
Not designated for hedge accounting | Other products | Futures
Fair value of derivative instruments
Notional amount	12.9	4.2
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Not designated for hedge accounting | Other products | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	11.8	11.6
Positive replacement value (PRV)	0.1	0.1
Negative replacement value (NRV)	0.1	0.1
Designated for hedge accounting
Fair value of derivative instruments
Notional amount	161.6	140
Positive replacement value (PRV)	0.9	1
Negative replacement value (NRV)	0.3	0.2
Designated for hedge accounting | Interest rate derivatives
Fair value of derivative instruments
Notional amount	140.6	126.1
Positive replacement value (PRV)	0.7	0.9
Negative replacement value (NRV)	0.1	0.1
Designated for hedge accounting | Interest rate derivatives | Forwards and forward rate agreements
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Interest rate derivatives | Swaps
Fair value of derivative instruments
Notional amount	140.6	126.1
Positive replacement value (PRV)	0.7	0.9
Negative replacement value (NRV)	0.1	0.1
Designated for hedge accounting | Interest rate derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Interest rate derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Interest rate derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Foreign exchange derivatives
Fair value of derivative instruments
Notional amount	21	13.9
Positive replacement value (PRV)	0.2	0.1
Negative replacement value (NRV)	0.2	0.1
Designated for hedge accounting | Foreign exchange derivatives | Forwards
Fair value of derivative instruments
Notional amount	21	13.9
Positive replacement value (PRV)	0.2	0.1
Negative replacement value (NRV)	0	0.1
Designated for hedge accounting | Foreign exchange derivatives | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0.2	0
Designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Foreign exchange derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Credit derivatives
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives | Forwards
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products | Forwards
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Designated for hedge accounting | Other products | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank
Fair value of derivative instruments
Notional amount	18,189.5	17,736.6
Positive replacement value (PRV)	126.3	146.2
Negative replacement value (NRV)	SFr 121.2	147.6
Cash flow hedges
Maximum Length of Time Hedged in Cash Flow Hedge	12 months
Bank | Not designated for hedge accounting
Fair value of derivative instruments
Notional amount	SFr 18,031.4	17,596.6
Positive replacement value (PRV)	125.4	145.2
Negative replacement value (NRV)	120.9	147.4
Bank | Not designated for hedge accounting | Interest rate derivatives
Fair value of derivative instruments
Notional amount	14,725.8	14,691.5
Positive replacement value (PRV)	57.9	74.9
Negative replacement value (NRV)	53.4	71.7
Bank | Not designated for hedge accounting | Interest rate derivatives | Forwards and forward rate agreements
Fair value of derivative instruments
Notional amount	4,305.9	5,221.5
Positive replacement value (PRV)	1.4	2.7
Negative replacement value (NRV)	1.3	2.8
Bank | Not designated for hedge accounting | Interest rate derivatives | Swaps
Fair value of derivative instruments
Notional amount	9,053.7	8,088.7
Positive replacement value (PRV)	43.4	53.5
Negative replacement value (NRV)	39.1	50.3
Bank | Not designated for hedge accounting | Interest rate derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	884.8	968.6
Positive replacement value (PRV)	13	18.2
Negative replacement value (NRV)	12.8	18
Bank | Not designated for hedge accounting | Interest rate derivatives | Futures
Fair value of derivative instruments
Notional amount	341.3	296.6
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Not designated for hedge accounting | Interest rate derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	140.1	116.1
Positive replacement value (PRV)	0.1	0.5
Negative replacement value (NRV)	0.2	0.6
Bank | Not designated for hedge accounting | Foreign exchange derivatives
Fair value of derivative instruments
Notional amount	1,609.8	1,520.3
Positive replacement value (PRV)	19.8	24.4
Negative replacement value (NRV)	21.1	28.9
Bank | Not designated for hedge accounting | Foreign exchange derivatives | Forwards
Fair value of derivative instruments
Notional amount	996.1	928.4
Positive replacement value (PRV)	7.8	10.1
Negative replacement value (NRV)	6.6	11.8
Bank | Not designated for hedge accounting | Foreign exchange derivatives | Swaps
Fair value of derivative instruments
Notional amount	355.3	345.8
Positive replacement value (PRV)	9.6	10.9
Negative replacement value (NRV)	11.8	13.4
Bank | Not designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	240.3	236.3
Positive replacement value (PRV)	2.4	3.4
Negative replacement value (NRV)	2.7	3.7
Bank | Not designated for hedge accounting | Foreign exchange derivatives | Futures
Fair value of derivative instruments
Notional amount	17.5	8.8
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Not designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0.6	1
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Not designated for hedge accounting | Credit derivatives
Fair value of derivative instruments
Notional amount	594.3	467.8
Positive replacement value (PRV)	5.1	4.9
Negative replacement value (NRV)	6.3	6
Bank | Not designated for hedge accounting | Equity/index-related derivatives
Fair value of derivative instruments
Notional amount	1,031	864.4
Positive replacement value (PRV)	40.9	39.2
Negative replacement value (NRV)	39	39.8
Bank | Not designated for hedge accounting | Equity/index-related derivatives | Forwards
Fair value of derivative instruments
Notional amount	1	1
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0.3	0.3
Bank | Not designated for hedge accounting | Equity/index-related derivatives | Swaps
Fair value of derivative instruments
Notional amount	121.3	167.6
Positive replacement value (PRV)	1.9	4.3
Negative replacement value (NRV)	4.7	8.8
Bank | Not designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	258.8	218.3
Positive replacement value (PRV)	15.7	14.9
Negative replacement value (NRV)	11.8	10
Bank | Not designated for hedge accounting | Equity/index-related derivatives | Futures
Fair value of derivative instruments
Notional amount	41.6	23.5
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Not designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	608.3	454
Positive replacement value (PRV)	23.3	20
Negative replacement value (NRV)	22.2	20.7
Bank | Not designated for hedge accounting | Other products
Fair value of derivative instruments
Notional amount	70.5	52.6
Positive replacement value (PRV)	1.7	1.8
Negative replacement value (NRV)	1.1	1
Bank | Not designated for hedge accounting | Other products | Forwards
Fair value of derivative instruments
Notional amount	16	12.2
Positive replacement value (PRV)	0.2	0.3
Negative replacement value (NRV)	0.2	0.2
Bank | Not designated for hedge accounting | Other products | Swaps
Fair value of derivative instruments
Notional amount	11.4	9.8
Positive replacement value (PRV)	1.1	1.1
Negative replacement value (NRV)	0.6	0.5
Bank | Not designated for hedge accounting | Other products | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	18.4	14.8
Positive replacement value (PRV)	0.3	0.3
Negative replacement value (NRV)	0.2	0.2
Bank | Not designated for hedge accounting | Other products | Futures
Fair value of derivative instruments
Notional amount	12.9	4.2
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Not designated for hedge accounting | Other products | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	11.8	11.6
Positive replacement value (PRV)	0.1	0.1
Negative replacement value (NRV)	0.1	0.1
Bank | Designated for hedge accounting
Fair value of derivative instruments
Notional amount	158.1	140
Positive replacement value (PRV)	0.9	1
Negative replacement value (NRV)	0.3	0.2
Bank | Designated for hedge accounting | Interest rate derivatives
Fair value of derivative instruments
Notional amount	137.1	126.1
Positive replacement value (PRV)	0.7	0.9
Negative replacement value (NRV)	0.1	0.1
Bank | Designated for hedge accounting | Interest rate derivatives | Forwards and forward rate agreements
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Interest rate derivatives | Swaps
Fair value of derivative instruments
Notional amount	137.1	126.1
Positive replacement value (PRV)	0.7	0.9
Negative replacement value (NRV)	0.1	0.1
Bank | Designated for hedge accounting | Interest rate derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Interest rate derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Interest rate derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Foreign exchange derivatives
Fair value of derivative instruments
Notional amount	21	13.9
Positive replacement value (PRV)	0.2	0.1
Negative replacement value (NRV)	0.2	0.1
Bank | Designated for hedge accounting | Foreign exchange derivatives | Forwards
Fair value of derivative instruments
Notional amount	21	13.9
Positive replacement value (PRV)	0.2	0.1
Negative replacement value (NRV)	0.2	0.1
Bank | Designated for hedge accounting | Foreign exchange derivatives | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Foreign exchange derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Foreign exchange derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Credit derivatives
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives | Forwards
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Equity/index-related derivatives | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products | Forwards
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products | Swaps
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products | Options bought and sold (OTC)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products | Futures
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	0	0
Bank | Designated for hedge accounting | Other products | Options bought and sold (exchange traded)
Fair value of derivative instruments
Notional amount	0	0
Positive replacement value (PRV)	0	0
Negative replacement value (NRV)	SFr 0	SFr 0

Derivatives and hedging activ_4

Derivatives and hedging activities - Movements (Details 2) - CHF (SFr) SFr in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair value hedges | Interest rate derivatives | Interest and dividend income [Member]
Derivative Instruments, Gain (Loss)
Hedged items	SFr (288)	SFr 1,156	SFr (205)	SFr 868	SFr (2,374)
Derivatives designated as hedging instruments	264	(1,096)	212	(832)	2,226
Cash flow hedges
Derivative Instruments, Gain (Loss)
Expected reclassification of net gains/(losses) from AOCI into earnings during the next 12 months	50
Cash flow hedges | Trading Revenue [Member]
Derivative Instruments, Gain (Loss)
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net	0	0	0	0	1
Cash flow hedges | Interest rate derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	(23)	(96)	21	(119)	288
Cash flow hedges | Interest rate derivatives | Interest and dividend income [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	7	3	0	10	(42)
Cash flow hedges | Foreign exchange derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	0	4	(5)	4	(84)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	15	10	(5)	25	(41)
Cash flow hedges | Foreign exchange derivatives | Trading Revenue [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	0	0	0	0	(30)
Cash flow hedges | Foreign exchange derivatives | Other Expense [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	15	10	(5)	25	(11)
Net investment hedges | Foreign exchange derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax	7	(262)	(38)	(255)	481
Net investment hedges | Foreign exchange derivatives | Other Income [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	SFr 0	SFr 0	SFr 9	0	9
Bank | Fair value hedges | Interest rate derivatives | Interest and dividend income [Member]
Derivative Instruments, Gain (Loss)
Hedged items				776	(2,374)
Derivatives designated as hedging instruments				(740)	2,226
Bank | Cash flow hedges
Derivative Instruments, Gain (Loss)
Expected reclassification of net gains/(losses) from AOCI into earnings during the next 12 months				50
Bank | Cash flow hedges | Trading Revenue [Member]
Derivative Instruments, Gain (Loss)
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net				0	1
Bank | Cash flow hedges | Interest rate derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax				(119)	288
Bank | Cash flow hedges | Interest rate derivatives | Interest and dividend income [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax				10	(42)
Bank | Cash flow hedges | Foreign exchange derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax				4	(84)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax				25	(41)
Bank | Cash flow hedges | Foreign exchange derivatives | Trading Revenue [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax				0	(30)
Bank | Cash flow hedges | Foreign exchange derivatives | Other Expense [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax				25	(11)
Bank | Net investment hedges | Foreign exchange derivatives
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax				(248)	476
Bank | Net investment hedges | Foreign exchange derivatives | Other Income [Member]
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax				SFr 0	SFr 9

Derivatives and hedging activ_5

Derivatives and hedging activities - Contingent credit risk (Details 3) - CHF (SFr) SFr in Billions	Jun. 30, 2021	Dec. 31, 2020
Contingent credit risk
Current net exposure	SFr 2.8	SFr 3.4
Collateral posted	2.1	2.4
Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0.6	0.7
Bilateral counterparties
Contingent credit risk
Current net exposure	2.4	3
Collateral posted	2.1	2.4
Bilateral counterparties | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0.5	0.5
Special purpose entities
Contingent credit risk
Current net exposure	0	0
Collateral posted	0	0
Special purpose entities | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0	0
Accelerated terminations
Contingent credit risk
Current net exposure	0.4	0.4
Accelerated terminations | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0.1	0.2
Bank
Contingent credit risk
Current net exposure	2.8	3.4
Collateral posted	2.1	2.4
Bank | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0.6	0.7
Bank | Bilateral counterparties
Contingent credit risk
Current net exposure	2.4	3
Collateral posted	2.1	2.4
Bank | Bilateral counterparties | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0.5	0.5
Bank | Special purpose entities
Contingent credit risk
Current net exposure	0	0
Collateral posted	0	0
Bank | Special purpose entities | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	0	0
Bank | Accelerated terminations
Contingent credit risk
Current net exposure	0.4	0.4
Bank | Accelerated terminations | Scenario, Impact of a three-notch downgrade event [Member]
Contingent credit risk
Collateral posted	SFr 0.1	SFr 0.2

Derivatives and hedging activ_6

Derivatives and hedging activities - Credit protection sold/purchased (Details 4) - CHF (SFr) SFr in Billions	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021
Credit protection sold/purchased
Credit protection sold	SFr (204.8)	SFr (263.4)
Credit protection purchased	189.4	251.2
Net credit protection (sold)/purchased	(15.4)	(12.2)
Other protection purchased	59.2	65.4
Fair value of credit protection sold	0.4	1
Total return swaps
Credit protection sold/purchased
Credit protection sold	(14.4)	(14.3)
Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(43.6)	(54.6)
Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(145.3)	(191.8)
Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(15.9)	(17)
Government debt securities
Credit protection sold/purchased
Credit protection sold	(12.5)	(13.1)
Credit protection purchased	11.6	12
Net credit protection (sold)/purchased	(0.9)	(1.1)
Other protection purchased	5.3	5.3
Fair value of credit protection sold	0	0
Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(192.3)	(250.3)
Credit protection purchased	177.8	239.2
Net credit protection (sold)/purchased	(14.5)	(11.1)
Other protection purchased	53.9	60.1
Fair value of credit protection sold	0.4	1
Investment grade
Credit protection sold/purchased
Credit protection sold	(152)	(197)
Credit protection purchased	143	189.1
Net credit protection (sold)/purchased	(9)	(7.9)
Other protection purchased	36.1	40.5
Fair value of credit protection sold	(0.2)	0.1
Non-investment grade
Credit protection sold/purchased
Credit protection sold	(52.8)	(66.4)
Credit protection purchased	46.4	62.1
Net credit protection (sold)/purchased	(6.4)	(4.3)
Other protection purchased	23.1	24.9
Fair value of credit protection sold	0.6	0.9
Single-name instruments
Credit protection sold/purchased
Credit protection sold	(81)	(87.7)
Credit protection purchased	74.3	82.5
Net credit protection (sold)/purchased	(6.7)	(5.2)
Other protection purchased	24.8	23.4
Fair value of credit protection sold	0.9	1.1
Single-name instruments | Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(14)	(13.7)
Single-name instruments | Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(62.7)	(69.9)
Single-name instruments | Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(4.3)	(4.1)
Single-name instruments | Government debt securities
Credit protection sold/purchased
Credit protection sold	(12.5)	(13.1)
Credit protection purchased	11.6	12
Net credit protection (sold)/purchased	(0.9)	(1.1)
Other protection purchased	5.3	5.3
Fair value of credit protection sold	0	0
Single-name instruments | Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(68.5)	(74.6)
Credit protection purchased	62.7	70.5
Net credit protection (sold)/purchased	(5.8)	(4.1)
Other protection purchased	19.5	18.1
Fair value of credit protection sold	0.9	1.1
Single-name instruments | Investment grade
Credit protection sold/purchased
Credit protection sold	(52.5)	(55.4)
Credit protection purchased	47.8	52.3
Net credit protection (sold)/purchased	(4.7)	(3.1)
Other protection purchased	13	11.7
Fair value of credit protection sold	0.5	0.5
Single-name instruments | Non-investment grade
Credit protection sold/purchased
Credit protection sold	(28.5)	(32.3)
Credit protection purchased	26.5	30.2
Net credit protection (sold)/purchased	(2)	(2.1)
Other protection purchased	11.8	11.7
Fair value of credit protection sold	0.4	0.6
Multi-name instruments
Credit protection sold/purchased
Credit protection sold	(123.8)	(175.7)
Credit protection purchased	115.1	168.7
Net credit protection (sold)/purchased	(8.7)	(7)
Other protection purchased	34.4	42
Fair value of credit protection sold	(0.5)	(0.1)
Multi-name instruments | Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(29.6)	(40.9)
Multi-name instruments | Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(82.6)	(121.9)
Multi-name instruments | Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(11.6)	(12.9)
Multi-name instruments | Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(123.8)	(175.7)
Credit protection purchased	115.1	168.7
Net credit protection (sold)/purchased	(8.7)	(7)
Other protection purchased	34.4	42
Fair value of credit protection sold	(0.5)	(0.1)
Multi-name instruments | Investment grade
Credit protection sold/purchased
Credit protection sold	(99.5)	(141.6)
Credit protection purchased	95.2	136.8
Net credit protection (sold)/purchased	(4.3)	(4.8)
Other protection purchased	23.1	28.8
Fair value of credit protection sold	(0.7)	(0.4)
Multi-name instruments | Non-investment grade
Credit protection sold/purchased
Credit protection sold	(24.3)	(34.1)
Credit protection purchased	19.9	31.9
Net credit protection (sold)/purchased	(4.4)	(2.2)
Other protection purchased	11.3	13.2
Fair value of credit protection sold	0.2	0.3
Bank
Credit protection sold/purchased
Credit protection sold	(204.8)	(263.4)
Credit protection purchased	189.4	251.2
Net credit protection (sold)/purchased	(15.4)	(12.2)
Other protection purchased	59.2	65.4
Fair value of credit protection sold	0.4	1
Bank | Total return swaps
Credit protection sold/purchased
Credit protection sold	(14.4)	(14.3)
Bank | Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(43.6)	(54.6)
Bank | Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(145.3)	(191.8)
Bank | Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(15.9)	(17)
Bank | Government debt securities
Credit protection sold/purchased
Credit protection sold	(12.5)	(13.1)
Credit protection purchased	11.6	12
Net credit protection (sold)/purchased	(0.9)	(1.1)
Other protection purchased	5.3	5.3
Fair value of credit protection sold	0	0
Bank | Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(192.3)	(250.3)
Credit protection purchased	177.8	239.2
Net credit protection (sold)/purchased	(14.5)	(11.1)
Other protection purchased	53.9	60.1
Fair value of credit protection sold	0.4	1
Bank | Investment grade
Credit protection sold/purchased
Credit protection sold	(152)	(197)
Credit protection purchased	143	189.1
Net credit protection (sold)/purchased	(9)	(7.9)
Other protection purchased	36.1	40.5
Fair value of credit protection sold	(0.2)	0.1
Bank | Non-investment grade
Credit protection sold/purchased
Credit protection sold	(52.8)	(66.4)
Credit protection purchased	46.4	62.1
Net credit protection (sold)/purchased	(6.4)	(4.3)
Other protection purchased	23.1	24.9
Fair value of credit protection sold	0.6	0.9
Bank | Single-name instruments
Credit protection sold/purchased
Credit protection sold	(81)	(87.7)
Credit protection purchased	74.3	82.5
Net credit protection (sold)/purchased	(6.7)	(5.2)
Other protection purchased	24.8	23.4
Fair value of credit protection sold	0.9	1.1
Bank | Single-name instruments | Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(14)	(13.7)
Bank | Single-name instruments | Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(62.7)	(69.9)
Bank | Single-name instruments | Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(4.3)	(4.1)
Bank | Single-name instruments | Government debt securities
Credit protection sold/purchased
Credit protection sold	(12.5)	(13.1)
Credit protection purchased	11.6	12
Net credit protection (sold)/purchased	(0.9)	(1.1)
Other protection purchased	5.3	5.3
Fair value of credit protection sold	0	0
Bank | Single-name instruments | Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(68.5)	(74.6)
Credit protection purchased	62.7	70.5
Net credit protection (sold)/purchased	(5.8)	(4.1)
Other protection purchased	19.5	18.1
Fair value of credit protection sold	0.9	1.1
Bank | Single-name instruments | Investment grade
Credit protection sold/purchased
Credit protection sold	(52.5)	(55.4)
Credit protection purchased	47.8	52.3
Net credit protection (sold)/purchased	(4.7)	(3.1)
Other protection purchased	13	11.7
Fair value of credit protection sold	0.5	0.5
Bank | Single-name instruments | Non-investment grade
Credit protection sold/purchased
Credit protection sold	(28.5)	(32.3)
Credit protection purchased	26.5	30.2
Net credit protection (sold)/purchased	(2)	(2.1)
Other protection purchased	11.8	11.7
Fair value of credit protection sold	0.4	0.6
Bank | Multi-name instruments
Credit protection sold/purchased
Credit protection sold	(123.8)	(175.7)
Credit protection purchased	115.1	168.7
Net credit protection (sold)/purchased	(8.7)	(7)
Other protection purchased	34.4	42
Fair value of credit protection sold	(0.5)	(0.1)
Bank | Multi-name instruments | Maturity less than 1 year
Credit protection sold/purchased
Credit protection sold	(29.6)	(40.9)
Bank | Multi-name instruments | Maturity between 1 to 5 years
Credit protection sold/purchased
Credit protection sold	(82.6)	(121.9)
Bank | Multi-name instruments | Maturity greater than 5 years
Credit protection sold/purchased
Credit protection sold	(11.6)	(12.9)
Bank | Multi-name instruments | Non-sovereigns
Credit protection sold/purchased
Credit protection sold	(123.8)	(175.7)
Credit protection purchased	115.1	168.7
Net credit protection (sold)/purchased	(8.7)	(7)
Other protection purchased	34.4	42
Fair value of credit protection sold	(0.5)	(0.1)
Bank | Multi-name instruments | Investment grade
Credit protection sold/purchased
Credit protection sold	(99.5)	(141.6)
Credit protection purchased	95.2	136.8
Net credit protection (sold)/purchased	(4.3)	(4.8)
Other protection purchased	23.1	28.8
Fair value of credit protection sold	(0.7)	(0.4)
Bank | Multi-name instruments | Non-investment grade
Credit protection sold/purchased
Credit protection sold	(24.3)	(34.1)
Credit protection purchased	19.9	31.9
Net credit protection (sold)/purchased	(4.4)	(2.2)
Other protection purchased	11.3	13.2
Fair value of credit protection sold	SFr 0.2	SFr 0.3

Derivatives and hedging activ_7

Derivatives and hedging activities - Credit derivatives (Details 5) - CHF (SFr) SFr in Billions	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021
Credit Derivatives [Line Items]
Credit protection sold	SFr 204.8	SFr 263.4
Credit protection purchased	189.4	251.2
Other protection purchased	59.2	65.4
Other instruments	14.4	14.3
Total credit derivatives	467.8	594.3
Bank
Credit Derivatives [Line Items]
Credit protection sold	204.8	263.4
Credit protection purchased	189.4	251.2
Other protection purchased	59.2	65.4
Other instruments	14.4	14.3
Total credit derivatives	SFr 467.8	SFr 594.3

Derivatives and hedging activ_8

Derivatives and hedging activities (Details 6) - CHF (SFr) SFr in Billions	Jun. 30, 2021	Dec. 31, 2020
Investment securities
Hedged items in fair value hedges [Line Items]
Hedged Asset, Fair Value Hedge	SFr 0.6	SFr 0.4
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	0	0
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0	0
Long-term debt
Hedged items in fair value hedges [Line Items]
Hedged Liability, Fair Value Hedge	75.5	65.8
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	0.8	1.9
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0.7	0.8
Net loans
Hedged items in fair value hedges [Line Items]
Hedged Asset, Fair Value Hedge	21.6	20.5
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(0.1)	0.2
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0.4	0.5
Bank | Investment securities
Hedged items in fair value hedges [Line Items]
Hedged Asset, Fair Value Hedge	0.6	0.4
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	0	0
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0	0
Bank | Long-term debt
Hedged items in fair value hedges [Line Items]
Hedged Liability, Fair Value Hedge	72.1	65.8
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	0.9	1.9
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0.7	0.8
Bank | Net loans
Hedged items in fair value hedges [Line Items]
Hedged Asset, Fair Value Hedge	21.6	20.5
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(0.1)	0.2
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	SFr 0.4	SFr 0.5

Guarantees and commitments - Gu

Guarantees and commitments - Guarantees maturity (Details) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
Guarantees
Maturity less than 1 year	SFr 22,079	SFr 19,338
Maturity greater than 1 year	11,888	12,989
Total gross amount	33,967	32,327
Total net amount	32,730	31,320
Carrying value	522	522
Collateral received	8,606	7,897
Credit guarantees and similar instruments
Guarantees
Maturity less than 1 year	2,411	1,645
Maturity greater than 1 year	1,921	1,434
Total gross amount	4,332	3,079
Total net amount	4,268	3,016
Carrying value	20	27
Collateral received	2,195	1,637
Performance guarantees and similar instruments
Guarantees
Maturity less than 1 year	4,484	3,607
Maturity greater than 1 year	2,868	2,925
Total gross amount	7,352	6,532
Total net amount	6,223	5,601
Carrying value	38	30
Collateral received	2,706	2,535
Derivatives
Guarantees
Maturity less than 1 year	11,082	10,531
Maturity greater than 1 year	4,968	6,042
Total gross amount	16,050	16,573
Total net amount	16,050	16,573
Carrying value	403	380
Other guarantees
Guarantees
Maturity less than 1 year	4,102	3,555
Maturity greater than 1 year	2,131	2,588
Total gross amount	6,233	6,143
Total net amount	6,189	6,130
Carrying value	61	85
Collateral received	3,705	3,725
Bank
Guarantees
Maturity less than 1 year	22,079	19,338
Maturity greater than 1 year	11,892	12,993
Total gross amount	33,971	32,331
Total net amount	32,734	31,324
Carrying value	522	522
Collateral received	8,606	7,897
Bank | Credit guarantees and similar instruments
Guarantees
Maturity less than 1 year	2,411	1,645
Maturity greater than 1 year	1,925	1,438
Total gross amount	4,336	3,083
Total net amount	4,272	3,020
Carrying value	20	27
Collateral received	2,195	1,637
Bank | Performance guarantees and similar instruments
Guarantees
Maturity less than 1 year	4,484	3,607
Maturity greater than 1 year	2,868	2,925
Total gross amount	7,352	6,532
Total net amount	6,223	5,601
Carrying value	38	30
Collateral received	2,706	2,535
Bank | Derivatives
Guarantees
Maturity less than 1 year	11,082	10,531
Maturity greater than 1 year	4,968	6,042
Total gross amount	16,050	16,573
Total net amount	16,050	16,573
Carrying value	403	380
Bank | Other guarantees
Guarantees
Maturity less than 1 year	4,102	3,555
Maturity greater than 1 year	2,131	2,588
Total gross amount	6,233	6,143
Total net amount	6,189	6,130
Carrying value	61	85
Collateral received	SFr 3,705	SFr 3,725

Guarantees and commitments - Ot

Guarantees and commitments - Other guarantees (Details 2) - CHF (SFr) SFr in Billions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Guarantees
Amount jointly guaranteed by deposit-taking banks and securities dealers in Switzerland	SFr 6
Group's share in amount jointly guaranteed by deposit-taking banks and securities dealers in Switzerland		SFr 0.5
Bank
Guarantees
Amount jointly guaranteed by deposit-taking banks and securities dealers in Switzerland	SFr 6
Group's share in amount jointly guaranteed by deposit-taking banks and securities dealers in Switzerland		SFr 0.5

Guarantees and commitments - _2

Guarantees and commitments - Other commitments maturity (Details 7) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
Other commitments
Maturity less than 1 year	SFr 31,096	SFr 23,880
Maturity greater than 1 year	105,515	101,114
Total gross amount	136,611	124,994
Total net amount	131,971	121,039
Collateral received	63,342	55,479
Unused revocable credit limits	144,958	130,877
Irrevocable commitments under documentary credits
Other commitments
Maturity less than 1 year	4,446	3,915
Maturity greater than 1 year	82	97
Total gross amount	4,528	4,012
Total net amount	4,279	3,963
Collateral received	2,469	2,404
Loan commitments
Other commitments
Maturity less than 1 year	24,764	19,813
Maturity greater than 1 year	105,111	99,209
Total gross amount	129,875	119,022
Total net amount	125,484	115,116
Collateral received	60,786	53,039
Forward reverse repurchase agreements
Other commitments
Maturity less than 1 year	71	17
Maturity greater than 1 year	0	0
Total gross amount	71	17
Total net amount	71	17
Collateral received	71	17
Other commitments
Other commitments
Maturity less than 1 year	1,815	135
Maturity greater than 1 year	322	1,808
Total gross amount	2,137	1,943
Total net amount	2,137	1,943
Collateral received	16	19
Bank
Other commitments
Maturity less than 1 year	31,096	23,880
Maturity greater than 1 year	105,515	101,114
Total gross amount	136,611	124,994
Total net amount	131,971	121,039
Collateral received	63,342	55,479
Bank | Irrevocable commitments under documentary credits
Other commitments
Maturity less than 1 year	4,446	3,915
Maturity greater than 1 year	82	97
Total gross amount	4,528	4,012
Total net amount	4,279	3,963
Collateral received	2,469	2,404
Bank | Loan commitments
Other commitments
Maturity less than 1 year	24,764	19,813
Maturity greater than 1 year	105,111	99,209
Total gross amount	129,875	119,022
Total net amount	125,484	115,116
Collateral received	60,786	53,039
Unused revocable credit limits	145,045	130,965
Bank | Forward reverse repurchase agreements
Other commitments
Maturity less than 1 year	71	17
Maturity greater than 1 year	0	0
Total gross amount	71	17
Total net amount	71	17
Collateral received	71	17
Bank | Other commitments
Other commitments
Maturity less than 1 year	1,815	135
Maturity greater than 1 year	322	1,808
Total gross amount	2,137	1,943
Total net amount	2,137	1,943
Collateral received	SFr 16	SFr 19

Transfers of financial assets (

Transfers of financial assets (TFA) - Securitizations (Details) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CMBS
Transfers of financial assets disclosures
Net gain/(loss)	SFr 0	SFr 30
Proceeds from transfer of assets	999	4,862
Cash received on interests that continue to be held	26	21
RMBS
Transfers of financial assets disclosures
Net gain/(loss)	62	22
Proceeds from transfer of assets	20,876	11,373
Purchases of previously transferred financial assets or their underlying collateral	(1,072)	0
Servicing fees	1	1
Cash received on interests that continue to be held	430	457
Other asset-backed financings
Transfers of financial assets disclosures
Net gain/(loss)	47	61
Proceeds from transfer of assets	6,802	4,766
Purchases of previously transferred financial assets or their underlying collateral	(699)	(638)
Servicing fees	81	72
Cash received on interests that continue to be held	7	11
Bank | CMBS
Transfers of financial assets disclosures
Net gain/(loss)	0	30
Proceeds from transfer of assets	999	4,862
Cash received on interests that continue to be held	26	21
Bank | RMBS
Transfers of financial assets disclosures
Net gain/(loss)	62	22
Proceeds from transfer of assets	20,876	11,373
Purchases of previously transferred financial assets or their underlying collateral	(1,072)	0
Servicing fees	1	1
Cash received on interests that continue to be held	430	457
Bank | Other asset-backed financings
Transfers of financial assets disclosures
Net gain/(loss)	47	61
Proceeds from transfer of assets	6,802	4,766
Purchases of previously transferred financial assets or their underlying collateral	(699)	(638)
Servicing fees	81	72
Cash received on interests that continue to be held	SFr 7	SFr 11

TFA - Principal amounts outstan

TFA - Principal amounts outstanding / total assets - continuing involvement (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
CMBS
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	SFr 16,247	SFr 17,421
Total assets of SPE	23,079	24,455
RMBS
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	58,318	47,324
Total assets of SPE	58,318	47,863
Other asset-backed financings
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	26,307	24,968
Total assets of SPE	55,188	50,817
Bank | CMBS
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	16,247	17,421
Total assets of SPE	23,079	24,455
Bank | RMBS
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	58,318	47,324
Total assets of SPE	58,318	47,863
Bank | Other asset-backed financings
Principal amounts outstanding and total assets of SPEs resulting from continuing involvement
Principal amount outstanding	26,307	24,968
Total assets of SPE	SFr 55,188	SFr 50,817

TFA - Key economic assumptions

TFA - Key economic assumptions at time of transfer (Details 3) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed rate assumed used for projecting payments over the life of a residential mortgage loan (as a percent)	100.00%
Prepayment rate per annum of the outstanding principal balance of mortgage loans in the first month assuming 100% prepayment (as a percent)	0.20%
Prepayment rate per annum of the outstanding principal balance of mortgage loans after the first month assuming 100% prepayment (as a percent)	0.20%
Constant prepayment rate assumed using a 100% prepayment assumption (as a percent)	6.00%
CMBS
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 92	SFr 172
Weighted-average life, in years	7 years 4 months 24 days	8 years 1 month 6 days
CMBS | Minimum
Key economic assumptions used in measuring fair value at time of transfer
Cash flow discount rate (rate per annum), in % (as a percent)	1.80%	1.40%
Expected credit losses (rate per annum), in % (as a percent)	0.90%	4.00%
CMBS | Maximum
Key economic assumptions used in measuring fair value at time of transfer
Cash flow discount rate (rate per annum), in % (as a percent)	4.50%	9.20%
Expected credit losses (rate per annum), in % (as a percent)	3.90%	8.60%
CMBS | Level 2
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 82	SFr 158
CMBS | Level 3
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	10	14
RMBS
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 1,337	SFr 1,646
Weighted-average life, in years	5 years	3 years 7 months 6 days
RMBS | Minimum
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed assumption (rate per annum) in % (as a percent)	3.00%	1.00%
Cash flow discount rate (rate per annum), in % (as a percent)	1.00%	0.70%
Expected credit losses (rate per annum), in % (as a percent)	0.10%	3.30%
RMBS | Maximum
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed assumption (rate per annum) in % (as a percent)	32.80%	38.20%
Cash flow discount rate (rate per annum), in % (as a percent)	15.40%	24.70%
Expected credit losses (rate per annum), in % (as a percent)	13.70%	22.90%
RMBS | Level 2
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 1,019	SFr 1,465
RMBS | Level 3
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 318	181
Bank
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed rate assumed used for projecting payments over the life of a residential mortgage loan (as a percent)	100.00%
Prepayment rate per annum of the outstanding principal balance of mortgage loans in the first month assuming 100% prepayment (as a percent)	0.20%
Prepayment rate per annum of the outstanding principal balance of mortgage loans after the first month assuming 100% prepayment (as a percent)	0.20%
Constant prepayment rate assumed using a 100% prepayment assumption (as a percent)	6.00%
Bank | CMBS
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 92	SFr 172
Weighted-average life, in years	7 years 4 months 24 days	8 years 1 month 6 days
Bank | CMBS | Minimum
Key economic assumptions used in measuring fair value at time of transfer
Cash flow discount rate (rate per annum), in % (as a percent)	1.80%	1.40%
Expected credit losses (rate per annum), in % (as a percent)	0.90%	4.00%
Bank | CMBS | Maximum
Key economic assumptions used in measuring fair value at time of transfer
Cash flow discount rate (rate per annum), in % (as a percent)	4.50%	9.20%
Expected credit losses (rate per annum), in % (as a percent)	3.90%	8.60%
Bank | CMBS | Level 2
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 82	SFr 158
Bank | CMBS | Level 3
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	10	14
Bank | RMBS
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 1,337	SFr 1,646
Weighted-average life, in years	5 years	3 years 7 months 6 days
Bank | RMBS | Minimum
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed assumption (rate per annum) in % (as a percent)	3.00%	1.00%
Cash flow discount rate (rate per annum), in % (as a percent)	1.00%	0.70%
Expected credit losses (rate per annum), in % (as a percent)	0.10%	3.30%
Bank | RMBS | Maximum
Key economic assumptions used in measuring fair value at time of transfer
Prepayment speed assumption (rate per annum) in % (as a percent)	32.80%	38.20%
Cash flow discount rate (rate per annum), in % (as a percent)	15.40%	24.70%
Expected credit losses (rate per annum), in % (as a percent)	13.70%	22.90%
Bank | RMBS | Level 2
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 1,019	SFr 1,465
Bank | RMBS | Level 3
Key economic assumptions used in measuring fair value at time of transfer
Fair value of beneficial interests at time of transfer	SFr 318	SFr 181

TFA - Key economic assumption_2

TFA - Key economic assumptions at balance sheet date (Details 4) - CHF (SFr) SFr in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021	Dec. 31, 2020
CMBS
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 296	SFr 232	SFr 296
Weighted-average life, in years	5 years 7 months 6 days	6 years
Impact on fair value from 10% adverse change in cash flow discount rate	SFr (4.9)	SFr (2.9)	(4.9)
Impact on fair value from 20% adverse change in cash flow discount rate	(9.6)	(5.6)	(9.6)
Impact on fair value from 10% adverse change in expected credit losses	(4.3)	(1.8)	(4.3)
Impact on fair value from 20% adverse change in expected credit losses	SFr (8.5)	SFr (3.5)	(8.5)
CMBS | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)	0.60%	1.70%
Expected credit losses rate (rate per annum), in % (as a percent)	0.40%	0.90%
CMBS | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)	38.20%	31.50%
Expected credit losses rate (rate per annum), in % (as a percent)	14.70%	13.00%
CMBS | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 36	SFr 38	36
RMBS
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 1,851	SFr 2,382	1,851
Weighted-average life, in years	4 years	4 years
Impact on fair value from 10% adverse change in prepayment speed	SFr (43.7)	SFr (40)	(43.7)
Impact on fair value from 20% adverse change in prepayment speed	(92.1)	(78)	(92.1)
Impact on fair value from 10% adverse change in cash flow discount rate	(22.4)	(32.5)	(22.4)
Impact on fair value from 20% adverse change in cash flow discount rate	(43.5)	(62.7)	(43.5)
Impact on fair value from 10% adverse change in expected credit losses	(20.2)	(25.9)	(20.2)
Impact on fair value from 20% adverse change in expected credit losses	SFr (39.2)	SFr (50.2)	(39.2)
RMBS | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Prepayment speed assumption (rate per annum), in % (as a percent)	4.00%	5.20%
Cash flow discount rate per annum, in % (as a percent)	0.30%	0.70%
Expected credit losses rate (rate per annum), in % (as a percent)	0.60%	0.20%
RMBS | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Prepayment speed assumption (rate per annum), in % (as a percent)	50.10%	30.00%
Cash flow discount rate per annum, in % (as a percent)	39.70%	29.70%
Expected credit losses rate (rate per annum), in % (as a percent)	39.60%	28.60%
RMBS | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 631	SFr 330	631
Other asset-backed financings
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 350	SFr 319	350
Weighted-average life, in years	4 years 9 months 18 days	5 years 6 months
Impact on fair value from 10% adverse change in cash flow discount rate	SFr (4.2)	SFr (3.7)	(4.2)
Impact on fair value from 20% adverse change in cash flow discount rate	(8.2)	(7.3)	(8.2)
Impact on fair value from 10% adverse change in expected credit losses	(4.5)	(3.5)	(4.5)
Impact on fair value from 20% adverse change in expected credit losses	SFr (8.9)	SFr (6.8)	(8.9)
Other asset-backed financings | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)	0.70%	0.30%
Expected credit losses rate (rate per annum), in % (as a percent)	0.70%	0.30%
Other asset-backed financings | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)	27.70%	28.00%
Expected credit losses rate (rate per annum), in % (as a percent)	26.80%	28.00%
Other asset-backed financings | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 23	SFr 18	23
Bank | CMBS
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	296	SFr 232	SFr 296
Weighted-average life, in years		6 years	5 years 7 months 6 days
Impact on fair value from 10% adverse change in cash flow discount rate	(4.9)	SFr (2.9)	SFr (4.9)
Impact on fair value from 20% adverse change in cash flow discount rate	(9.6)	(5.6)	(9.6)
Impact on fair value from 10% adverse change in expected credit losses	(4.3)	(1.8)	(4.3)
Impact on fair value from 20% adverse change in expected credit losses	(8.5)	SFr (3.5)	SFr (8.5)
Bank | CMBS | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)		1.70%	0.60%
Expected credit losses rate (rate per annum), in % (as a percent)		0.90%	0.40%
Bank | CMBS | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)		31.50%	38.20%
Expected credit losses rate (rate per annum), in % (as a percent)		13.00%	14.70%
Bank | CMBS | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	36	SFr 38	SFr 36
Bank | RMBS
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	1,851	SFr 2,382	SFr 1,851
Weighted-average life, in years		4 years	4 years
Impact on fair value from 10% adverse change in prepayment speed	(43.7)	SFr (40)	SFr (43.7)
Impact on fair value from 20% adverse change in prepayment speed	(92.1)	(78)	(92.1)
Impact on fair value from 10% adverse change in cash flow discount rate	(22.4)	(32.5)	(22.4)
Impact on fair value from 20% adverse change in cash flow discount rate	(43.5)	(62.7)	(43.5)
Impact on fair value from 10% adverse change in expected credit losses	(20.2)	(25.9)	(20.2)
Impact on fair value from 20% adverse change in expected credit losses	(39.2)	SFr (50.2)	SFr (39.2)
Bank | RMBS | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Prepayment speed assumption (rate per annum), in % (as a percent)		5.20%	4.00%
Cash flow discount rate per annum, in % (as a percent)		0.70%	0.30%
Expected credit losses rate (rate per annum), in % (as a percent)		0.20%	0.60%
Bank | RMBS | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Prepayment speed assumption (rate per annum), in % (as a percent)		30.00%	50.10%
Cash flow discount rate per annum, in % (as a percent)		29.70%	39.70%
Expected credit losses rate (rate per annum), in % (as a percent)		28.60%	39.60%
Bank | RMBS | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	631	SFr 330	SFr 631
Bank | Other asset-backed financings
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	350	SFr 319	SFr 350
Weighted-average life, in years		5 years 6 months	4 years 9 months 18 days
Impact on fair value from 10% adverse change in cash flow discount rate	(4.2)	SFr (3.7)	SFr (4.2)
Impact on fair value from 20% adverse change in cash flow discount rate	(8.2)	(7.3)	(8.2)
Impact on fair value from 10% adverse change in expected credit losses	(4.5)	(3.5)	(4.5)
Impact on fair value from 20% adverse change in expected credit losses	(8.9)	SFr (6.8)	SFr (8.9)
Bank | Other asset-backed financings | Minimum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)		0.30%	0.70%
Expected credit losses rate (rate per annum), in % (as a percent)		0.30%	0.70%
Bank | Other asset-backed financings | Maximum
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Cash flow discount rate per annum, in % (as a percent)		28.00%	27.70%
Expected credit losses rate (rate per annum), in % (as a percent)		28.00%	26.80%
Bank | Other asset-backed financings | Non-investment grade
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]
Fair value of beneficial interests held in SPEs	SFr 23	SFr 18	SFr 23

TFA - Carrying amounts for sale

TFA - Carrying amounts for sale treatmen not achieved (Details 5) - Other asset-backed financings - CHF (SFr) SFr in Millions	Jun. 30, 2021	Dec. 31, 2020
Trading assets
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Assets, transfer of financial interest, sale treatment not achieved	SFr 721	SFr 496
Other assets
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Assets, transfer of financial interest, sale treatment not achieved	198	246
Other liabilities
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Liability to SPE, transfer of financial interest, sale treatment not achieved	(919)	(742)
Bank | Trading assets
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Assets, transfer of financial interest, sale treatment not achieved	721	496
Bank | Other assets
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Assets, transfer of financial interest, sale treatment not achieved	198	246
Bank | Other liabilities
Carrying amounts of transferred financial assets and liabilities where sale treatment not achieved
Liability to SPE, transfer of financial interest, sale treatment not achieved	SFr (919)	SFr (742)

TFA - Transfer of certain finan

TFA - Transfer of certain financial assets accounted for as secured borrowings (Details 6) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	SFr 31,700		SFr 27,700
Securities lending transactions	3,800		4,100
Obligation to return securities received as collateral, at fair value	38,686	SFr 56,494	50,773
Total	74,200		82,600
Corporate debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	8,600		7,700
Securities lending transactions	300		100
Obligation to return securities received as collateral, at fair value	4,400		5,600
Asset-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	4,300		6,000
Equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending transactions	3,300		3,500
Obligation to return securities received as collateral, at fair value	29,400		39,300
Other
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	3,000		1,900
Securities lending transactions	0		100
Obligation to return securities received as collateral, at fair value	200		100
Government debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	15,800		12,100
Securities lending transactions	200		400
Obligation to return securities received as collateral, at fair value	4,700		5,800
No stated maturity [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	3,400		5,800
Securities lending transactions	3,800		4,000
Obligation to return securities received as collateral, at fair value	38,600		50,200
Total	45,800		60,000
Maturity Less than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	16,400		11,800
Securities lending transactions	0		0
Obligation to return securities received as collateral, at fair value	0		300
Total	16,400		12,100
Maturity 30 to 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	2,600		5,900
Securities lending transactions	0		100
Obligation to return securities received as collateral, at fair value	0		300
Total	2,600		6,300
Maturity Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	9,300		4,200
Securities lending transactions	0		0
Obligation to return securities received as collateral, at fair value	100		0
Total	9,400		4,200
Bank
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	31,800		27,700
Securities lending transactions	3,800		4,100
Obligation to return securities received as collateral, at fair value	38,686		50,773
Total	74,300		82,600
Bank | Corporate debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	8,600		7,700
Securities lending transactions	300		100
Obligation to return securities received as collateral, at fair value	4,400		5,600
Bank | Asset-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	4,300		6,000
Bank | Equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending transactions	3,300		3,500
Obligation to return securities received as collateral, at fair value	29,400		39,300
Bank | Other
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	3,000		1,800
Securities lending transactions	0		100
Obligation to return securities received as collateral, at fair value	200		100
Bank | Government debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	15,900		12,200
Securities lending transactions	200		400
Obligation to return securities received as collateral, at fair value	4,700		5,800
Bank | No stated maturity [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	3,400		5,800
Securities lending transactions	3,800		4,000
Obligation to return securities received as collateral, at fair value	38,600		50,200
Total	45,800		60,000
Bank | Maturity Less than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	16,500		11,800
Securities lending transactions	0		0
Obligation to return securities received as collateral, at fair value	0		300
Total	16,500		12,100
Bank | Maturity 30 to 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	2,600		5,900
Securities lending transactions	0		100
Obligation to return securities received as collateral, at fair value	0		300
Total	2,600		6,300
Bank | Maturity Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities sold under repurchase agreements	9,300		4,200
Securities lending transactions	0		0
Obligation to return securities received as collateral, at fair value	100		0
Total	SFr 9,400		SFr 4,200

Variable interest entities (VIE

Variable interest entities (VIE) - Consolidated (Details 7) SFr in Millions		Jun. 30, 2021CHF (SFr)day		Mar. 31, 2021CHF (SFr)	Dec. 31, 2020CHF (SFr)		Jun. 30, 2020CHF (SFr)		Dec. 31, 2019CHF (SFr)
VIE Disclosures
Cash and due from banks		SFr 146,358	[1]	SFr 133,285	SFr 139,112	[1]	SFr 132,070	[1]	SFr 101,879	[1]
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		94,645		91,121	79,133
Trading assets		130,505		157,139	157,338
Investment securities		794		614	607
Other investments		4,578		5,640	5,412
Net loans		299,844		304,188	291,908
Other assets		42,171		48,902	39,637
of which loans held-for-sale		8,136		13,160	7,046
Assets		796,799		851,395	805,822
Customer deposits		397,298		406,069	390,921
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		20,924		22,853	23,851
Trading liabilities		32,972		47,740	45,871
Short-term borrowings		22,366		24,887	20,868
Long-term debt		170,227		170,453	161,087
Other liabilities		29,071		31,703	31,434
Liabilities		SFr 752,924		806,511	762,881
CP Conduit
VIE Disclosures
Average maturity of CP (in days) | day		215
Consolidated VIEs
VIE Disclosures
Cash and due from banks		SFr 247		90	90
Trading assets		1,916		2,146	2,164
Other investments		1,231		1,273	1,251
Net loans		686		772	900
Other assets		1,488		1,581	1,876
of which loans held-for-sale		83			472
Premises and equipment		29			34
Assets		5,568			6,281
Customer deposits		1		0	1
Trading liabilities		9		11	10
Short-term borrowings		6,484		4,377	4,178
Long-term debt		1,319		1,568	1,746
Other liabilities		237		SFr 240	208
Liabilities		8,050			6,143
Consolidated VIEs | CP Conduit
VIE Disclosures
Cash and due from banks		0			0
Trading assets		0			0
Other investments		0			0
Net loans		603			653
Other assets		24			21
of which loans held-for-sale		0			0
Premises and equipment		0			0
Assets		627			674
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		4,700			4,178
Long-term debt		93			0
Other liabilities		70			53
Liabilities		4,863			4,231
Consolidated VIEs | Financial intermediation - Securitizations
VIE Disclosures
Cash and due from banks		39			23
Trading assets		1,068			1,255
Other investments		0			0
Net loans		0			0
Other assets		540			979
of which loans held-for-sale		57			462
Premises and equipment		0			0
Assets		1,647			2,257
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		29			0
Long-term debt		1,180			1,701
Other liabilities		1			1
Liabilities		1,210			1,702
Consolidated VIEs | Financial intermediation - Funds
VIE Disclosures
Cash and due from banks		16			22
Trading assets		54			50
Other investments		109			129
Net loans		61			51
Other assets		31			15
of which loans held-for-sale		26			10
Premises and equipment		0			0
Assets		271			267
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		0			0
Long-term debt		0			0
Other liabilities		4			3
Liabilities		4			3
Consolidated VIEs | Financial intermediation - Loans
VIE Disclosures
Cash and due from banks		21			37
Trading assets		788			840
Other investments		877			920
Net loans		22			29
Other assets		82			82
of which loans held-for-sale		0			0
Premises and equipment		29			30
Assets		1,790			1,908
Customer deposits		0			0
Trading liabilities		9			10
Short-term borrowings		0			0
Long-term debt		3			10
Other liabilities		70			73
Liabilities		82			93
Consolidated VIEs | Financial intermediation - Other
VIE Disclosures
Cash and due from banks		171			8
Trading assets		6			19
Other investments		245			202
Net loans		0			167
Other assets		811			779
of which loans held-for-sale		0			0
Premises and equipment		0			4
Assets		1,233			1,175
Customer deposits		1			1
Trading liabilities		0			0
Short-term borrowings		1,755			0
Long-term debt		43			35
Other liabilities		92			78
Liabilities		1,891			114
Bank
VIE Disclosures
Cash and due from banks	[2]	145,367			138,207		SFr 131,292		SFr 101,044
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions		94,645			79,133
Trading assets		130,684			157,511
Investment securities		792			605
Other investments		4,543			5,379
Net loans		308,159			300,341
Other assets		38,779			36,574
of which loans held-for-sale		8,136			7,046
Assets		800,120			809,688
Customer deposits		398,323			392,039
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions		21,020			23,944
Trading liabilities		32,971			45,871
Short-term borrowings		26,219			21,308
Long-term debt		164,292			160,279
Other liabilities		27,935			30,340
Liabilities		SFr 750,828			762,629
Bank | CP Conduit
VIE Disclosures
Average maturity of CP (in days) | day		215
Bank | Consolidated VIEs
VIE Disclosures
Cash and due from banks		SFr 247			90
Trading assets		1,916			2,164
Other investments		1,231			1,251
Net loans		686			900
Other assets		1,454			1,858
of which loans held-for-sale		83			472
Premises and equipment		14			17
Assets		5,534			6,263
Customer deposits		1			1
Trading liabilities		9			10
Short-term borrowings		4,729			4,178
Long-term debt		1,319			1,746
Other liabilities		231			207
Liabilities		6,289			6,142
Bank | Consolidated VIEs | CP Conduit
VIE Disclosures
Cash and due from banks		0			0
Trading assets		0			0
Other investments		0			0
Net loans		603			653
Other assets		24			21
of which loans held-for-sale		0			0
Premises and equipment		0			0
Assets		627			674
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		4,700			4,178
Long-term debt		93			0
Other liabilities		70			53
Liabilities		4,863			4,231
Bank | Consolidated VIEs | Financial intermediation - Securitizations
VIE Disclosures
Cash and due from banks		39			23
Trading assets		1,068			1,255
Other investments		0			0
Net loans		0			0
Other assets		540			979
of which loans held-for-sale		57			462
Premises and equipment		0			0
Assets		1,647			2,257
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		29			0
Long-term debt		1,180			1,701
Other liabilities		1			1
Liabilities		1,210			1,702
Bank | Consolidated VIEs | Financial intermediation - Funds
VIE Disclosures
Cash and due from banks		16			22
Trading assets		54			50
Other investments		109			129
Net loans		61			51
Other assets		31			15
of which loans held-for-sale		26			10
Premises and equipment		0			0
Assets		271			267
Customer deposits		0			0
Trading liabilities		0			0
Short-term borrowings		0			0
Long-term debt		0			0
Other liabilities		4			3
Liabilities		4			3
Bank | Consolidated VIEs | Financial intermediation - Loans
VIE Disclosures
Cash and due from banks		21			37
Trading assets		788			840
Other investments		877			920
Net loans		22			29
Other assets		67			65
of which loans held-for-sale		0			0
Premises and equipment		14			13
Assets		1,775			1,891
Customer deposits		0			0
Trading liabilities		9			10
Short-term borrowings		0			0
Long-term debt		3			10
Other liabilities		72			72
Liabilities		84			92
Bank | Consolidated VIEs | Financial intermediation - Other
VIE Disclosures
Cash and due from banks		171			8
Trading assets		6			19
Other investments		245			202
Net loans		0			167
Other assets		792			778
of which loans held-for-sale		0			0
Premises and equipment		0			4
Assets		1,214			1,174
Customer deposits		1			1
Trading liabilities		0			0
Short-term borrowings		0			0
Long-term debt		43			35
Other liabilities		84			78
Liabilities		SFr 128			SFr 114
[1]	Includes restricted cash.
[2]	Includes restricted cash.

VIE - Non-consolidated (Details

VIE - Non-consolidated (Details 8) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
VIE Disclosures
Trading assets	SFr 130,505	SFr 157,139	SFr 157,338
Net loans	299,844	304,188	291,908
Other assets	42,171	48,902	39,637
Assets	796,799	851,395	805,822
Maximum exposure to loss	43,414		38,379
Non-consolidated VIE assets	361,695		296,498
Other liabilities	29,071	31,703	31,434
Liabilities	752,924	SFr 806,511	762,881
Collateralized debt or loan obligations
VIE Disclosures
Maximum exposure to loss	1,532		852
Non-consolidated VIE assets	11,001		8,553
CP Conduit
VIE Disclosures
Maximum exposure to loss	5,966		5,538
Non-consolidated VIE assets	12,544		11,148
Financial intermediation - Securitizations
VIE Disclosures
Maximum exposure to loss	7,887		7,329
Non-consolidated VIE assets	106,170		127,785
Financial intermediation - Funds
VIE Disclosures
Maximum exposure to loss	3,868		3,199
Non-consolidated VIE assets	163,757		89,686
Financial intermediation - Loans
VIE Disclosures
Maximum exposure to loss	13,568		11,235
Non-consolidated VIE assets	37,131		26,186
Financial intermediation - Other
VIE Disclosures
Maximum exposure to loss	10,593		10,226
Non-consolidated VIE assets	31,092		33,140
Non-consolidated VIEs
VIE Disclosures
Trading assets	13,612		14,546
Net loans	14,466		11,357
Other assets	1,032		468
Assets	29,110		26,371
Non-consolidated VIEs | Collateralized debt or loan obligations
VIE Disclosures
Trading assets	257		250
Net loans	631		357
Other assets	7		2
Assets	895		609
Non-consolidated VIEs | CP Conduit
VIE Disclosures
Trading assets	0		0
Net loans	547		371
Other assets	0		0
Assets	547		371
Non-consolidated VIEs | Financial intermediation - Securitizations
VIE Disclosures
Trading assets	4,480		4,500
Net loans	365		734
Other assets	302		3
Assets	5,147		5,237
Non-consolidated VIEs | Financial intermediation - Funds
VIE Disclosures
Trading assets	921		1,113
Net loans	2,770		1,967
Other assets	177		119
Assets	3,868		3,199
Non-consolidated VIEs | Financial intermediation - Loans
VIE Disclosures
Trading assets	24		66
Net loans	8,778		6,989
Other assets	0		0
Assets	8,802		7,055
Non-consolidated VIEs | Financial intermediation - Other
VIE Disclosures
Trading assets	7,930		8,617
Net loans	1,375		939
Other assets	546		344
Assets	9,851		9,900
Bank
VIE Disclosures
Trading assets	130,684		157,511
Net loans	308,159		300,341
Other assets	38,779		36,574
Assets	800,120		809,688
Other liabilities	27,935		30,340
Liabilities	750,828		762,629
Bank | Non-consolidated VIEs
VIE Disclosures
Trading assets	13,611		14,546
Net loans	14,466		11,357
Other assets	1,029		459
Assets	29,106		26,362
Maximum exposure to loss	43,410		38,370
Non-consolidated VIE assets	355,222		287,049
Bank | Non-consolidated VIEs | Collateralized debt or loan obligations
VIE Disclosures
Trading assets	257		250
Net loans	631		357
Other assets	7		2
Assets	895		609
Maximum exposure to loss	1,532		852
Non-consolidated VIE assets	11,001		8,553
Bank | Non-consolidated VIEs | CP Conduit
VIE Disclosures
Trading assets	0		0
Net loans	547		371
Other assets	0		0
Assets	547		371
Maximum exposure to loss	5,966		5,538
Non-consolidated VIE assets	12,544		11,148
Bank | Non-consolidated VIEs | Financial intermediation - Securitizations
VIE Disclosures
Trading assets	4,480		4,500
Net loans	365		734
Other assets	302		3
Assets	5,147		5,237
Maximum exposure to loss	7,887		7,329
Non-consolidated VIE assets	106,170		127,785
Bank | Non-consolidated VIEs | Financial intermediation - Funds
VIE Disclosures
Trading assets	920		1,113
Net loans	2,770		1,967
Other assets	174		110
Assets	3,864		3,190
Maximum exposure to loss	3,864		3,190
Non-consolidated VIE assets	162,600		87,618
Bank | Non-consolidated VIEs | Financial intermediation - Loans
VIE Disclosures
Trading assets	24		66
Net loans	8,778		6,989
Other assets	0		0
Assets	8,802		7,055
Maximum exposure to loss	13,568		11,235
Non-consolidated VIE assets	37,131		26,186
Bank | Non-consolidated VIEs | Financial intermediation - Other
VIE Disclosures
Trading assets	7,930		8,617
Net loans	1,375		939
Other assets	546		344
Assets	9,851		9,900
Maximum exposure to loss	10,593		10,226
Non-consolidated VIE assets	SFr 25,776		SFr 25,759

Financial instruments (FI) - As

Financial instruments (FI) - Assets measured at fair value (Details 2) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and Due from Banks	SFr 141	SFr 91	SFr 525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465	67,268	57,994
Securities received as collateral	38,686	56,494	50,773
Trading assets	130,505	157,139	157,338
Available-for-sale Securities, Debt Securities	794	614	607
Other investments	2,747	3,937	3,794
Loans	11,101	11,827	11,408
Other intangible assets (mortgage servicing rights), at fair value	189	181	180
Other assets	10,342	15,033	8,373
Other assets - of which failed purchases	1,793	SFr 1,595	1,451
Netting impact	(101,700)		(120,600)
Recurring basis
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,505		157,338
Available-for-sale Securities, Debt Securities	794		607
Other investments	2,747		3,794
Loans	11,101		11,408
Loans - of which commercial and industrial	3,123		3,534
Loans - of which financial institutions	4,601		4,588
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Other assets - of which loans held-for-sale	7,720		6,446
Other assets - of which failed purchases	1,728		1,389
Netting impact	(101,788)		(120,635)
Total assets at fair value	263,970		290,992
Recurring basis | Other equity investments
Assets
Other investments	1,747		2,759
Recurring basis | Life finance instruments
Assets
Other investments	877		920
Recurring basis | Debt securities
Assets
Trading assets	57,620		64,395
Recurring basis | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	22,301		27,957
Recurring basis | Debt securities | Corporate debt securities
Assets
Trading assets	11,078		11,477
Recurring basis | Debt securities | RMBS
Assets
Trading assets	21,005		21,439
Recurring basis | Equity securities
Assets
Trading assets	44,226		63,237
Recurring basis | Derivative instruments
Assets
Trading assets	24,156		25,531
Netting impact	(101,348)		(119,731)
Recurring basis | Trading assets
Assets
Netting impact	(101,348)		(119,731)
Recurring basis | Other
Assets
Trading assets	4,503		4,175
Recurring basis | Other assets
Assets
Netting impact	(440)		(904)
Recurring basis | Level 1
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	33,337		44,074
Trading assets	63,367		87,710
Available-for-sale Securities, Debt Securities	35		2
Other investments	13		13
Loans	0		0
Loans - of which commercial and industrial	0		0
Loans - of which financial institutions	0		0
Other intangible assets (mortgage servicing rights), at fair value	0		0
Other assets	155		137
Other assets - of which loans held-for-sale	0		0
Other assets - of which failed purchases	126		109
Total assets at fair value	96,907		131,936
Recurring basis | Level 1 | Other equity investments
Assets
Other investments	13		13
Recurring basis | Level 1 | Life finance instruments
Assets
Other investments	0		0
Recurring basis | Level 1 | Debt securities
Assets
Trading assets	11,267		16,321
Recurring basis | Level 1 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	10,885		15,908
Recurring basis | Level 1 | Debt securities | Corporate debt securities
Assets
Trading assets	265		353
Recurring basis | Level 1 | Debt securities | RMBS
Assets
Trading assets	0		0
Recurring basis | Level 1 | Equity securities
Assets
Trading assets	41,037		60,044
Recurring basis | Level 1 | Derivative instruments
Assets
Trading assets	9,422		9,297
Recurring basis | Level 1 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	1,212		3,036
Recurring basis | Level 1 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	220		42
Recurring basis | Level 1 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	7,941		6,150
Recurring basis | Level 1 | Derivative instruments | Other derivatives
Assets
Trading assets	0		22
Recurring basis | Level 1 | Other
Assets
Trading assets	1,641		2,048
Recurring basis | Level 2
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	5,265		6,598
Trading assets	161,743		181,166
Available-for-sale Securities, Debt Securities	759		605
Other investments	7		6
Loans	8,173		7,739
Loans - of which commercial and industrial	1,712		2,187
Loans - of which financial institutions	3,958		3,506
Other intangible assets (mortgage servicing rights), at fair value	0		0
Other assets	9,191		7,315
Other assets - of which loans held-for-sale	6,433		4,870
Other assets - of which failed purchases	1,590		1,229
Total assets at fair value	254,744		261,948
Recurring basis | Level 2 | Other equity investments
Assets
Other investments	7		6
Recurring basis | Level 2 | Life finance instruments
Assets
Other investments	0		0
Recurring basis | Level 2 | Debt securities
Assets
Trading assets	44,628		45,766
Recurring basis | Level 2 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	11,376		11,909
Recurring basis | Level 2 | Debt securities | Corporate debt securities
Assets
Trading assets	9,854		9,799
Recurring basis | Level 2 | Debt securities | RMBS
Assets
Trading assets	20,528		20,882
Recurring basis | Level 2 | Equity securities
Assets
Trading assets	2,172		2,466
Recurring basis | Level 2 | Derivative instruments
Assets
Trading assets	113,199		132,054
Recurring basis | Level 2 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	55,831		71,043
Recurring basis | Level 2 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	19,512		24,259
Recurring basis | Level 2 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	32,473		31,945
Recurring basis | Level 2 | Derivative instruments | Other derivatives
Assets
Trading assets	147		110
Recurring basis | Level 2 | Other
Assets
Trading assets	1,744		880
Recurring basis | Level 3
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	84		101
Trading assets	5,938		7,535
Available-for-sale Securities, Debt Securities	0		0
Other investments	2,231		3,054
Loans	2,928		3,669
Loans - of which commercial and industrial	1,411		1,347
Loans - of which financial institutions	643		1,082
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	1,436		1,825
Other assets - of which loans held-for-sale	1,287		1,576
Other assets - of which failed purchases	12		51
Total assets at fair value	12,806		16,364
Recurring basis | Level 3 | Other equity investments
Assets
Other investments	1,353		2,132
Recurring basis | Level 3 | Life finance instruments
Assets
Other investments	877		920
Recurring basis | Level 3 | Debt securities
Assets
Trading assets	1,655		2,253
Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	40		140
Recurring basis | Level 3 | Debt securities | Corporate debt securities
Assets
Trading assets	889		1,270
Recurring basis | Level 3 | Debt securities | RMBS
Assets
Trading assets	477		557
Recurring basis | Level 3 | Equity securities
Assets
Trading assets	282		124
Recurring basis | Level 3 | Derivative instruments
Assets
Trading assets	2,883		3,911
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	805		733
Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	139		143
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	490		1,186
Recurring basis | Level 3 | Derivative instruments | Other derivatives
Assets
Trading assets	1,073		1,079
Recurring basis | Level 3 | Other
Assets
Trading assets	1,118		1,247
Recurring basis | Fair value measured at net asset value per share
Assets
Trading assets	805		658
Other investments	496		721
Total assets at fair value	1,301		1,379
Recurring basis | Fair value measured at net asset value per share | Other equity investments
Assets
Other investments	374		608
Recurring basis | Fair value measured at net asset value per share | Debt securities
Assets
Trading assets	70		55
Recurring basis | Fair value measured at net asset value per share | Debt securities | Corporate debt securities
Assets
Trading assets	70		55
Recurring basis | Fair value measured at net asset value per share | Equity securities
Assets
Trading assets	735		603
Bank
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,684		157,511
Available-for-sale Securities, Debt Securities	792		605
Other investments	2,746		3,793
Loans	11,101		11,408
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Other assets - of which failed purchases	1,793		1,451
Netting impact	(101,800)		(120,600)
Bank | Recurring basis
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,684		157,511
Available-for-sale Securities, Debt Securities	792		605
Other investments	2,746		3,793
Loans	11,101		11,408
Loans - of which commercial and industrial	3,123		3,534
Loans - of which financial institutions	4,601		4,588
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Other assets - of which loans held-for-sale	7,720		6,446
Other assets - of which failed purchases	1,728		1,389
Netting impact	(101,887)		(120,635)
Total assets at fair value	264,146		291,162
Bank | Recurring basis | Other equity investments
Assets
Other investments	1,746		2,760
Bank | Recurring basis | Life finance instruments
Assets
Other investments	877		920
Bank | Recurring basis | Debt securities
Assets
Trading assets	57,739		64,532
Bank | Recurring basis | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	22,301		27,957
Bank | Recurring basis | Debt securities | Corporate debt securities
Assets
Trading assets	11,197		11,614
Bank | Recurring basis | Debt securities | RMBS
Assets
Trading assets	21,005		21,439
Bank | Recurring basis | Equity securities
Assets
Trading assets	44,287		63,273
Bank | Recurring basis | Derivative instruments
Assets
Trading assets	24,155		25,531
Netting impact	(101,447)		(119,731)
Bank | Recurring basis | Trading assets
Assets
Netting impact	(101,447)		(119,731)
Bank | Recurring basis | Other
Assets
Trading assets	4,503		4,175
Bank | Recurring basis | Other assets
Assets
Netting impact	(440)		(904)
Bank | Recurring basis | Level 1
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	33,337		44,074
Trading assets	63,427		87,746
Available-for-sale Securities, Debt Securities	33		1
Other investments	13		13
Loans	0		0
Loans - of which commercial and industrial	0		0
Loans - of which financial institutions	0		0
Other intangible assets (mortgage servicing rights), at fair value	0		0
Other assets	155		137
Other assets - of which loans held-for-sale	0		0
Other assets - of which failed purchases	126		109
Total assets at fair value	96,965		131,971
Bank | Recurring basis | Level 1 | Other equity investments
Assets
Other investments	13		13
Bank | Recurring basis | Level 1 | Life finance instruments
Assets
Other investments	0		0
Bank | Recurring basis | Level 1 | Debt securities
Assets
Trading assets	11,267		16,321
Bank | Recurring basis | Level 1 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	10,885		15,908
Bank | Recurring basis | Level 1 | Debt securities | Corporate debt securities
Assets
Trading assets	265		353
Bank | Recurring basis | Level 1 | Debt securities | RMBS
Assets
Trading assets	0		0
Bank | Recurring basis | Level 1 | Equity securities
Assets
Trading assets	41,098		60,080
Bank | Recurring basis | Level 1 | Derivative instruments
Assets
Trading assets	9,422		9,297
Bank | Recurring basis | Level 1 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	1,212		3,036
Bank | Recurring basis | Level 1 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	220		42
Bank | Recurring basis | Level 1 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	7,941		6,150
Bank | Recurring basis | Level 1 | Derivative instruments | Other derivatives
Assets
Trading assets	0		22
Bank | Recurring basis | Level 1 | Other
Assets
Trading assets	1,640		2,048
Bank | Recurring basis | Level 2
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	5,265		6,598
Trading assets	161,961		181,303
Available-for-sale Securities, Debt Securities	759		604
Other investments	7		6
Loans	8,173		7,739
Loans - of which commercial and industrial	1,712		2,187
Loans - of which financial institutions	3,958		3,506
Other intangible assets (mortgage servicing rights), at fair value	0		0
Other assets	9,191		7,315
Other assets - of which loans held-for-sale	6,433		4,870
Other assets - of which failed purchases	1,590		1,229
Total assets at fair value	254,962		262,084
Bank | Recurring basis | Level 2 | Other equity investments
Assets
Other investments	7		6
Bank | Recurring basis | Level 2 | Life finance instruments
Assets
Other investments	0		0
Bank | Recurring basis | Level 2 | Debt securities
Assets
Trading assets	44,747		45,903
Bank | Recurring basis | Level 2 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	11,376		11,909
Bank | Recurring basis | Level 2 | Debt securities | Corporate debt securities
Assets
Trading assets	9,973		9,936
Bank | Recurring basis | Level 2 | Debt securities | RMBS
Assets
Trading assets	20,528		20,882
Bank | Recurring basis | Level 2 | Equity securities
Assets
Trading assets	2,172		2,466
Bank | Recurring basis | Level 2 | Derivative instruments
Assets
Trading assets	113,297		132,054
Bank | Recurring basis | Level 2 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	55,930		71,043
Bank | Recurring basis | Level 2 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	19,512		24,259
Bank | Recurring basis | Level 2 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	32,473		31,945
Bank | Recurring basis | Level 2 | Derivative instruments | Other derivatives
Assets
Trading assets	146		110
Bank | Recurring basis | Level 2 | Other
Assets
Trading assets	1,745		880
Bank | Recurring basis | Level 3
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	84		101
Trading assets	5,938		7,535
Available-for-sale Securities, Debt Securities	0		0
Other investments	2,231		3,054
Loans	2,928		3,669
Loans - of which commercial and industrial	1,411		1,347
Loans - of which financial institutions	643		1,082
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	1,436		1,825
Other assets - of which loans held-for-sale	1,287		1,576
Other assets - of which failed purchases	12		51
Total assets at fair value	12,806		16,364
Bank | Recurring basis | Level 3 | Other equity investments
Assets
Other investments	1,353		2,132
Bank | Recurring basis | Level 3 | Life finance instruments
Assets
Other investments	877		920
Bank | Recurring basis | Level 3 | Debt securities
Assets
Trading assets	1,655		2,253
Bank | Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	40		140
Bank | Recurring basis | Level 3 | Debt securities | Corporate debt securities
Assets
Trading assets	889		1,270
Bank | Recurring basis | Level 3 | Debt securities | RMBS
Assets
Trading assets	477		557
Bank | Recurring basis | Level 3 | Equity securities
Assets
Trading assets	282		124
Bank | Recurring basis | Level 3 | Derivative instruments
Assets
Trading assets	2,883		3,911
Bank | Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	805		733
Bank | Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	139		143
Bank | Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	490		1,186
Bank | Recurring basis | Level 3 | Derivative instruments | Other derivatives
Assets
Trading assets	1,073		1,079
Bank | Recurring basis | Level 3 | Other
Assets
Trading assets	1,118		1,247
Bank | Recurring basis | Fair value measured at net asset value per share
Assets
Trading assets	805		658
Other investments	495		720
Total assets at fair value	1,300		1,378
Bank | Recurring basis | Fair value measured at net asset value per share | Other equity investments
Assets
Other investments	373		609
Bank | Recurring basis | Fair value measured at net asset value per share | Debt securities
Assets
Trading assets	70		55
Bank | Recurring basis | Fair value measured at net asset value per share | Debt securities | Corporate debt securities
Assets
Trading assets	70		55
Bank | Recurring basis | Fair value measured at net asset value per share | Equity securities
Assets
Trading assets	SFr 735		SFr 603

FI - Liabilities measured at fa

FI - Liabilities measured at fair value (Details 3) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Liabilities
Due to banks	SFr 330	SFr 800	SFr 413
Customer deposits	3,921	4,221	4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983	9,591	13,594
Obligation to return securities received as collateral	38,686	56,494	50,773
Trading liabilities	32,972	47,740	45,871
Short-term borrowings	8,554	11,020	10,740
Long-term debt	69,436	72,312	70,976
Other liabilities	7,911	SFr 7,913	7,780
Netting impact	(108,900)		(130,000)
Recurring basis
Liabilities
Due to banks	330		413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983		13,594
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,972		45,871
Short-term borrowings	8,554		10,740
Long-term debt	69,436		70,976
Other liabilities	7,911		7,780
Netting impact	(108,921)		(130,036)
Total liabilities at fair value	172,793		204,490
Recurring basis | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	13,866		12,920
Recurring basis | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	30,865		33,856
Recurring basis | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,080		10,586
Recurring basis | Debt securities
Liabilities
Trading liabilities	8,053
Recurring basis | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	4,133
Recurring basis | Equity securities
Liabilities
Trading liabilities	12,316		20,694
Recurring basis | Derivative instruments
Liabilities
Trading liabilities	12,603		17,745
Netting impact	(108,650)		(129,867)
Recurring basis | Trading liabilities
Liabilities
Netting impact	(108,650)		(129,867)
Recurring basis | Other liabilities
Liabilities
Netting impact	(271)		(169)
Recurring basis | Level 1
Liabilities
Due to banks	0		0
Customer deposits	0		0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	33,337		44,074
Trading liabilities	24,903		33,544
Short-term borrowings	0		0
Long-term debt	0		0
Other liabilities	90		0
Total liabilities at fair value	58,330		77,618
Recurring basis | Level 1 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	0		0
Recurring basis | Level 1 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	0		0
Recurring basis | Level 1 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	0		0
Recurring basis | Level 1 | Debt securities
Liabilities
Trading liabilities	3,230
Recurring basis | Level 1 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	3,131
Recurring basis | Level 1 | Equity securities
Liabilities
Trading liabilities	12,134		20,527
Recurring basis | Level 1 | Derivative instruments
Liabilities
Trading liabilities	9,539		10,536
Recurring basis | Level 1 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	1,184		3,264
Recurring basis | Level 1 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	176		51
Recurring basis | Level 1 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			0
Recurring basis | Level 1 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	8,127		7,149
Recurring basis | Level 2
Liabilities
Due to banks	330		413
Customer deposits	3,489		3,895
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983		13,594
Obligation to return securities received as collateral	5,265		6,598
Trading liabilities	113,684		137,947
Short-term borrowings	7,448		10,039
Long-term debt	59,763		63,708
Other liabilities	7,557		6,678
Total liabilities at fair value	208,519		242,872
Recurring basis | Level 2 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	11,742		11,787
Recurring basis | Level 2 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	24,088		28,330
Recurring basis | Level 2 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,080		10,586
Recurring basis | Level 2 | Debt securities
Liabilities
Trading liabilities	4,823
Recurring basis | Level 2 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	1,002
Recurring basis | Level 2 | Equity securities
Liabilities
Trading liabilities	141		111
Recurring basis | Level 2 | Derivative instruments
Liabilities
Trading liabilities	108,720		132,885
Recurring basis | Level 2 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	52,087		68,159
Recurring basis | Level 2 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	20,973		28,819
Recurring basis | Level 2 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			4,663
Recurring basis | Level 2 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	29,144		30,612
Recurring basis | Level 3
Liabilities
Due to banks	0		0
Customer deposits	432		448
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	84		101
Trading liabilities	3,035		4,246
Short-term borrowings	1,106		701
Long-term debt	9,673		7,268
Other liabilities	535		1,271
Total liabilities at fair value	14,865		14,035
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	2,124		1,133
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	6,777		5,526
Recurring basis | Level 3 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	0		0
Recurring basis | Level 3 | Debt securities
Liabilities
Trading liabilities	0
Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	0
Recurring basis | Level 3 | Equity securities
Liabilities
Trading liabilities	41		55
Recurring basis | Level 3 | Derivative instruments
Liabilities
Trading liabilities	2,994		4,191
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	142		169
Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	62		72
Recurring basis | Level 3 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			1,335
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	1,738		2,010
Recurring basis | Fair value measured at net asset value per share
Liabilities
Trading liabilities			1
Total liabilities at fair value			1
Recurring basis | Fair value measured at net asset value per share | Equity securities
Liabilities
Trading liabilities			1
Bank
Liabilities
Due to banks	330		413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,971		45,871
Short-term borrowings	8,554		10,740
Long-term debt	68,486		70,243
Other liabilities	7,891		7,756
Netting impact	(108,900)		(130,100)
Bank | Recurring basis
Liabilities
Due to banks	330		413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,971		45,871
Short-term borrowings	8,554		10,740
Long-term debt	68,486		70,243
Other liabilities	7,891		7,756
Netting impact	(108,979)		(130,106)
Total liabilities at fair value	171,919		203,827
Bank | Recurring basis | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	13,866		12,920
Bank | Recurring basis | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	30,865		33,856
Bank | Recurring basis | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,124		10,627
Bank | Recurring basis | Debt securities
Liabilities
Trading liabilities	8,054
Bank | Recurring basis | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	4,133
Bank | Recurring basis | Equity securities
Liabilities
Trading liabilities	12,315		20,694
Bank | Recurring basis | Derivative instruments
Liabilities
Trading liabilities	12,602		17,745
Netting impact	(108,708)		(129,937)
Bank | Recurring basis | Trading liabilities
Liabilities
Netting impact	(108,708)		(129,937)
Bank | Recurring basis | Other liabilities
Liabilities
Netting impact	(271)		(169)
Bank | Recurring basis | Level 1
Liabilities
Due to banks	0		0
Customer deposits	0		0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	33,337		44,074
Trading liabilities	24,903		33,543
Short-term borrowings	0		0
Long-term debt	0		0
Other liabilities	90		0
Total liabilities at fair value	58,330		77,617
Bank | Recurring basis | Level 1 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	0		0
Bank | Recurring basis | Level 1 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	0		0
Bank | Recurring basis | Level 1 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	0		0
Bank | Recurring basis | Level 1 | Debt securities
Liabilities
Trading liabilities	3,230
Bank | Recurring basis | Level 1 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	3,131
Bank | Recurring basis | Level 1 | Equity securities
Liabilities
Trading liabilities	12,133		20,527
Bank | Recurring basis | Level 1 | Derivative instruments
Liabilities
Trading liabilities	9,540		10,535
Bank | Recurring basis | Level 1 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	1,184		3,264
Bank | Recurring basis | Level 1 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	176		51
Bank | Recurring basis | Level 1 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			0
Bank | Recurring basis | Level 1 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	8,127		7,149
Bank | Recurring basis | Level 2
Liabilities
Due to banks	330		413
Customer deposits	3,489		3,895
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Obligation to return securities received as collateral	5,265		6,598
Trading liabilities	113,741		138,018
Short-term borrowings	7,448		10,039
Long-term debt	58,813		62,957
Other liabilities	7,537		6,675
Total liabilities at fair value	207,703		242,283
Bank | Recurring basis | Level 2 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	11,742		11,787
Bank | Recurring basis | Level 2 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	24,088		28,330
Bank | Recurring basis | Level 2 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,124		10,627
Bank | Recurring basis | Level 2 | Debt securities
Liabilities
Trading liabilities	4,824
Bank | Recurring basis | Level 2 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	1,002
Bank | Recurring basis | Level 2 | Equity securities
Liabilities
Trading liabilities	141		111
Bank | Recurring basis | Level 2 | Derivative instruments
Liabilities
Trading liabilities	108,776		132,956
Bank | Recurring basis | Level 2 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	52,145		68,229
Bank | Recurring basis | Level 2 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	20,973		28,819
Bank | Recurring basis | Level 2 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			4,663
Bank | Recurring basis | Level 2 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	29,143		30,612
Bank | Recurring basis | Level 3
Liabilities
Due to banks	0		0
Customer deposits	432		448
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	84		101
Trading liabilities	3,035		4,246
Short-term borrowings	1,106		701
Long-term debt	9,673		7,286
Other liabilities	535		1,250
Total liabilities at fair value	14,865		14,032
Bank | Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	2,124		1,133
Bank | Recurring basis | Level 3 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	6,777		5,526
Bank | Recurring basis | Level 3 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	0		0
Bank | Recurring basis | Level 3 | Debt securities
Liabilities
Trading liabilities	0
Bank | Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	0
Bank | Recurring basis | Level 3 | Equity securities
Liabilities
Trading liabilities	41		55
Bank | Recurring basis | Level 3 | Derivative instruments
Liabilities
Trading liabilities	2,994		4,191
Bank | Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	142		169
Bank | Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	62		72
Bank | Recurring basis | Level 3 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			1,335
Bank | Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	SFr 1,738		2,010
Bank | Recurring basis | Fair value measured at net asset value per share
Liabilities
Trading liabilities			1
Total liabilities at fair value			1
Bank | Recurring basis | Fair value measured at net asset value per share | Equity securities
Liabilities
Trading liabilities			SFr 1

FI - Roll-forward of assets mea

FI - Roll-forward of assets measured at fair value on recurring basis (Details 4) - CHF (SFr) SFr in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Assets measured at fair value on a recurring basis for level 3
Retained Earnings (Accumulated Deficit)	SFr 32,715	SFr 32,715		SFr 32,582	SFr 32,834
Recurring basis | Securities received as collateral
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		101	SFr 1
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		64	173
Sales, assets		(86)	(1)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		0	0
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		5	(3)
Balance at end of period, assets	84	84	170
Recurring basis | Securities received as collateral | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		0	0
Recurring basis | Trading assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		7,535	7,885
Transfers in, assets		594	2,489
Transfers out, assets		(1,635)	(1,502)
Purchases, assets		2,472	4,272
Sales, assets		(2,976)	(4,657)
Issuances, assets		508	1,290
Settlements, assets		(1,119)	(1,625)
Gain (loss) on transfers in/out included in trading revenues, assets		39	169
Gain (loss) on all other activity included in trading revenues, assets		140	796
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		380	(319)
Balance at end of period, assets	5,938	5,938	8,797
Recurring basis | Trading assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		128	1,076
Recurring basis | Trading assets | Debt securities
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		2,253	1,923
Transfers in, assets		296	1,654
Transfers out, assets		(736)	(708)
Purchases, assets		1,859	2,527
Sales, assets		(2,285)	(2,000)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		(7)	59
Gain (loss) on all other activity included in trading revenues, assets		138	(122)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		137	(135)
Balance at end of period, assets	1,655	1,655	3,198
Recurring basis | Trading assets | Debt securities | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		103	(19)
Recurring basis | Trading assets | Debt securities | Corporate debt securities
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,270	1,128
Transfers in, assets		137	559
Transfers out, assets		(176)	(564)
Purchases, assets		1,403	1,718
Sales, assets		(1,913)	(1,230)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		(5)	67
Gain (loss) on all other activity included in trading revenues, assets		95	42
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		78	(78)
Balance at end of period, assets	889	889	1,642
Recurring basis | Trading assets | Debt securities | Corporate debt securities | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		99	96
Recurring basis | Trading assets | Debt securities | RMBS
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			317
Transfers in, assets			902
Transfers out, assets			(70)
Purchases, assets			557
Sales, assets			(525)
Issuances, assets			0
Settlements, assets			0
Gain (loss) on transfers in/out included in trading revenues, assets			(4)
Gain (loss) on all other activity included in trading revenues, assets			(70)
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(5)
Balance at end of period, assets			1,102
Recurring basis | Trading assets | Debt securities | RMBS | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			(55)
Recurring basis | Trading assets | Derivative instruments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,911	3,534
Transfers in, assets		179	719
Transfers out, assets		(856)	(629)
Purchases, assets		0	0
Sales, assets		0	0
Issuances, assets		508	1,290
Settlements, assets		(1,033)	(1,606)
Gain (loss) on transfers in/out included in trading revenues, assets		29	111
Gain (loss) on all other activity included in trading revenues, assets		(30)	834
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		175	(151)
Balance at end of period, assets	2,883	2,883	4,101
Recurring basis | Trading assets | Derivative instruments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		72	999
Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		733
Transfers in, assets		59
Transfers out, assets		(81)
Purchases, assets		0
Sales, assets		0
Issuances, assets		114
Settlements, assets		(59)
Gain (loss) on transfers in/out included in trading revenues, assets		0
Gain (loss) on all other activity included in trading revenues, assets		18
Gain (loss) on transfers in/out included in other revenues, assets		0
Gain (loss) on all other activity included in other revenues, assets		0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0
Foreign currency translation impact, assets		21
Balance at end of period, assets	805	805
Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		54
Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			1,040
Transfers in, assets			220
Transfers out, assets			(240)
Purchases, assets			0
Sales, assets			0
Issuances, assets			345
Settlements, assets			(597)
Gain (loss) on transfers in/out included in trading revenues, assets			35
Gain (loss) on all other activity included in trading revenues, assets			345
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(81)
Balance at end of period, assets			1,067
Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			361
Recurring basis | Trading assets | Derivative instruments | Credit derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			879
Transfers in, assets			379
Transfers out, assets			(305)
Purchases, assets			0
Sales, assets			0
Issuances, assets			700
Settlements, assets			(771)
Gain (loss) on transfers in/out included in trading revenues, assets			100
Gain (loss) on all other activity included in trading revenues, assets			211
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(21)
Balance at end of period, assets			1,172
Recurring basis | Trading assets | Derivative instruments | Credit derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			325
Recurring basis | Trading assets | Derivative instruments | Other derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,079	909
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		0	0
Sales, assets		0	0
Issuances, assets		153	155
Settlements, assets		(157)	(165)
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(55)	207
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		53	(21)
Balance at end of period, assets	1,073	1,073	1,085
Recurring basis | Trading assets | Derivative instruments | Other derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(60)	210
Recurring basis | Trading assets | Other
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,247	2,231
Transfers in, assets		22	100
Transfers out, assets		(32)	(144)
Purchases, assets		493	1,707
Sales, assets		(617)	(2,639)
Issuances, assets		0	0
Settlements, assets		(86)	(19)
Gain (loss) on transfers in/out included in trading revenues, assets		10	(1)
Gain (loss) on all other activity included in trading revenues, assets		21	151
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		60	(30)
Balance at end of period, assets	1,118	1,118	1,356
Recurring basis | Trading assets | Other | Other derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(47)	11
Recurring basis | Other investments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,054	2,523
Transfers in, assets		3	2
Transfers out, assets		(753)	0
Purchases, assets		20	371
Sales, assets		(473)	(107)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(17)	95
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		318	(19)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		79	(26)
Balance at end of period, assets	2,231	2,231	2,839
Recurring basis | Other investments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		43	38
Recurring basis | Other investments | Other equity investments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		2,132	1,463
Transfers in, assets		0	1
Transfers out, assets		(753)	0
Purchases, assets		3	354
Sales, assets		(375)	(19)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(6)	(11)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		318	(18)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		34	(5)
Balance at end of period, assets	1,353	1,353	1,765
Recurring basis | Other investments | Other equity investments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		52	(35)
Recurring basis | Other investments | Life finance instruments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		920	1,052
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		17	17
Sales, assets		(94)	(88)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(11)	106
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		45	(21)
Balance at end of period, assets	877	877	1,066
Recurring basis | Other investments | Life finance instruments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		18	74
Recurring basis | Loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,669	3,835
Transfers in, assets		22	641
Transfers out, assets		(533)	(375)
Purchases, assets		357	90
Sales, assets		(73)	(479)
Issuances, assets		162	742
Settlements, assets		(946)	(569)
Gain (loss) on transfers in/out included in trading revenues, assets		8	38
Gain (loss) on all other activity included in trading revenues, assets		85	(336)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		1	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		176	(74)
Balance at end of period, assets	2,928	2,928	3,513
Recurring basis | Loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		25	(296)
Recurring basis | Commercial and industrial loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,347	1,401
Transfers in, assets		22	390
Transfers out, assets		(12)	(137)
Purchases, assets		10	45
Sales, assets		(31)	(282)
Issuances, assets		119	447
Settlements, assets		(184)	(173)
Gain (loss) on transfers in/out included in trading revenues, assets		14	3
Gain (loss) on all other activity included in trading revenues, assets		57	(194)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		1	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		68	(27)
Balance at end of period, assets	1,411	1,411	1,473
Recurring basis | Commercial and industrial loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		36	(205)
Recurring basis | Financial institutions loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,082	1,201
Transfers in, assets		0	44
Transfers out, assets		(222)	(94)
Purchases, assets		0	0
Sales, assets		(42)	(32)
Issuances, assets		32	275
Settlements, assets		(296)	(211)
Gain (loss) on transfers in/out included in trading revenues, assets		3	13
Gain (loss) on all other activity included in trading revenues, assets		40	(70)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		46	(26)
Balance at end of period, assets	643	643	1,100
Recurring basis | Financial institutions loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		4	(77)
Recurring basis | Other intangible assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		180	244
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		22	0
Sales, assets		0	0
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		0	0
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		(22)	(31)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		9	(4)
Balance at end of period, assets	189	189	209
Recurring basis | Other intangible assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(22)	(31)
Recurring basis | Other assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,825	1,846
Transfers in, assets		164	1,432
Transfers out, assets		(451)	(383)
Purchases, assets		2,500	2,400
Sales, assets		(2,176)	(2,260)
Issuances, assets		77	282
Settlements, assets		(573)	(543)
Gain (loss) on transfers in/out included in trading revenues, assets		13	16
Gain (loss) on all other activity included in trading revenues, assets		(42)	(60)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		99	(149)
Balance at end of period, assets	1,436	1,436	2,581
Recurring basis | Other assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(76)	(6)
Recurring basis | Other assets - of which loans held-for-sale
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,576	1,619
Transfers in, assets		164	1,409
Transfers out, assets		(409)	(339)
Purchases, assets		2,469	2,373
Sales, assets		(2,137)	(2,259)
Issuances, assets		77	282
Settlements, assets		(571)	(543)
Gain (loss) on transfers in/out included in trading revenues, assets		11	(8)
Gain (loss) on all other activity included in trading revenues, assets		19	(87)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		88	(143)
Balance at end of period, assets	1,287	1,287	2,304
Recurring basis | Other assets - of which loans held-for-sale | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(41)	(87)
Recurring basis | Assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		16,364	16,334
Transfers in, assets	385	783	4,564
Transfers out, assets	(1,611)	(3,372)	(2,260)
Purchases, assets		5,435	7,306
Sales, assets		(5,784)	(7,504)
Issuances, assets		747	2,314
Settlements, assets		(2,638)	(2,737)
Gain (loss) on transfers in/out included in trading revenues, assets		60	223
Gain (loss) on all other activity included in trading revenues, assets		166	495
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		297	(50)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		748	(575)
Balance at end of period, assets	12,806	12,806	18,109
Recurring basis | Assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		98	781
Nonrecurring basis | Accounting Standards Update 2019-05 [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Assets measured at fair value on a recurring basis for level 3
Retained Earnings (Accumulated Deficit)						SFr 118
Bank
Assets measured at fair value on a recurring basis for level 3
Retained Earnings (Accumulated Deficit)	15,973	15,973			SFr 15,871
Bank | Recurring basis | Securities received as collateral
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		101	1
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		64	173
Sales, assets		(86)	(1)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		0	0
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		5	(3)
Balance at end of period, assets	84	84	170
Bank | Recurring basis | Securities received as collateral | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		0	0
Bank | Recurring basis | Trading assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		7,535	7,885
Transfers in, assets		594	2,489
Transfers out, assets		(1,635)	(1,502)
Purchases, assets		2,472	4,272
Sales, assets		(2,976)	(4,657)
Issuances, assets		508	1,290
Settlements, assets		(1,119)	(1,625)
Gain (loss) on transfers in/out included in trading revenues, assets		39	169
Gain (loss) on all other activity included in trading revenues, assets		140	796
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		380	(319)
Balance at end of period, assets	5,938	5,938	8,797
Bank | Recurring basis | Trading assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		128	1,076
Bank | Recurring basis | Trading assets | Debt securities
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		2,253	1,923
Transfers in, assets		296	1,654
Transfers out, assets		(736)	(708)
Purchases, assets		1,859	2,527
Sales, assets		(2,285)	(2,000)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		(7)	59
Gain (loss) on all other activity included in trading revenues, assets		138	(122)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		137	(135)
Balance at end of period, assets	1,655	1,655	3,198
Bank | Recurring basis | Trading assets | Debt securities | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		103	(19)
Bank | Recurring basis | Trading assets | Debt securities | Corporate debt securities
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,270	1,128
Transfers in, assets		137	559
Transfers out, assets		(176)	(564)
Purchases, assets		1,403	1,718
Sales, assets		(1,913)	(1,230)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		(5)	67
Gain (loss) on all other activity included in trading revenues, assets		95	42
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		78	(78)
Balance at end of period, assets	889	889	1,642
Bank | Recurring basis | Trading assets | Debt securities | Corporate debt securities | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		99	96
Bank | Recurring basis | Trading assets | Debt securities | RMBS
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			317
Transfers in, assets			902
Transfers out, assets			(70)
Purchases, assets			557
Sales, assets			(525)
Issuances, assets			0
Settlements, assets			0
Gain (loss) on transfers in/out included in trading revenues, assets			(4)
Gain (loss) on all other activity included in trading revenues, assets			(70)
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(5)
Balance at end of period, assets			1,102
Bank | Recurring basis | Trading assets | Debt securities | RMBS | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			(55)
Bank | Recurring basis | Trading assets | Derivative instruments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,911	3,534
Transfers in, assets		179	719
Transfers out, assets		(856)	(629)
Purchases, assets		0	0
Sales, assets		0	0
Issuances, assets		508	1,290
Settlements, assets		(1,033)	(1,606)
Gain (loss) on transfers in/out included in trading revenues, assets		29	111
Gain (loss) on all other activity included in trading revenues, assets		(30)	834
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		175	(151)
Balance at end of period, assets	2,883	2,883	4,101
Bank | Recurring basis | Trading assets | Derivative instruments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		72	999
Bank | Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		733
Transfers in, assets		59
Transfers out, assets		(81)
Purchases, assets		0
Sales, assets		0
Issuances, assets		114
Settlements, assets		(59)
Gain (loss) on transfers in/out included in trading revenues, assets		0
Gain (loss) on all other activity included in trading revenues, assets		18
Gain (loss) on transfers in/out included in other revenues, assets		0
Gain (loss) on all other activity included in other revenues, assets		0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0
Foreign currency translation impact, assets		21
Balance at end of period, assets	805	805
Bank | Recurring basis | Trading assets | Derivative instruments | Interest rate derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		54
Bank | Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			1,040
Transfers in, assets			220
Transfers out, assets			(240)
Purchases, assets			0
Sales, assets			0
Issuances, assets			345
Settlements, assets			(597)
Gain (loss) on transfers in/out included in trading revenues, assets			35
Gain (loss) on all other activity included in trading revenues, assets			345
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(81)
Balance at end of period, assets			1,067
Bank | Recurring basis | Trading assets | Derivative instruments | Equity/Index-related products | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			361
Bank | Recurring basis | Trading assets | Derivative instruments | Credit derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets			879
Transfers in, assets			379
Transfers out, assets			(305)
Purchases, assets			0
Sales, assets			0
Issuances, assets			700
Settlements, assets			(771)
Gain (loss) on transfers in/out included in trading revenues, assets			100
Gain (loss) on all other activity included in trading revenues, assets			211
Gain (loss) on transfers in/out included in other revenues, assets			0
Gain (loss) on all other activity included in other revenues, assets			0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets			0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets			0
Foreign currency translation impact, assets			(21)
Balance at end of period, assets			1,172
Bank | Recurring basis | Trading assets | Derivative instruments | Credit derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses			325
Bank | Recurring basis | Trading assets | Derivative instruments | Other derivatives
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,079	909
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		0	0
Sales, assets		0	0
Issuances, assets		153	155
Settlements, assets		(157)	(165)
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(55)	207
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		53	(21)
Balance at end of period, assets	1,073	1,073	1,085
Bank | Recurring basis | Trading assets | Derivative instruments | Other derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(60)	210
Bank | Recurring basis | Trading assets | Other
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,247	2,231
Transfers in, assets		22	100
Transfers out, assets		(32)	(144)
Purchases, assets		493	1,707
Sales, assets		(617)	(2,639)
Issuances, assets		0	0
Settlements, assets		(86)	(19)
Gain (loss) on transfers in/out included in trading revenues, assets		10	(1)
Gain (loss) on all other activity included in trading revenues, assets		21	151
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		60	(30)
Balance at end of period, assets	1,118	1,118	1,356
Bank | Recurring basis | Trading assets | Other | Other derivatives | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(47)	11
Bank | Recurring basis | Other investments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,054	2,523
Transfers in, assets		3	2
Transfers out, assets		(753)	0
Purchases, assets		20	371
Sales, assets		(473)	(107)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(17)	95
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		318	(19)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		79	(26)
Balance at end of period, assets	2,231	2,231	2,839
Bank | Recurring basis | Other investments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		46	38
Bank | Recurring basis | Other investments | Other equity investments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		2,132	1,463
Transfers in, assets		0	1
Transfers out, assets		(753)	0
Purchases, assets		3	354
Sales, assets		(375)	(19)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(6)	(11)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		318	(18)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		34	(5)
Balance at end of period, assets	1,353	1,353	1,765
Bank | Recurring basis | Other investments | Other equity investments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		55	(35)
Bank | Recurring basis | Other investments | Life finance instruments
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		920	1,052
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		17	17
Sales, assets		(94)	(88)
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		(11)	106
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		45	(21)
Balance at end of period, assets	877	877	1,066
Bank | Recurring basis | Other investments | Life finance instruments | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		18	74
Bank | Recurring basis | Loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		3,669	3,835
Transfers in, assets		22	641
Transfers out, assets		(533)	(375)
Purchases, assets		357	90
Sales, assets		(73)	(479)
Issuances, assets		162	742
Settlements, assets		(946)	(569)
Gain (loss) on transfers in/out included in trading revenues, assets		8	38
Gain (loss) on all other activity included in trading revenues, assets		85	(336)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		1	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		176	(74)
Balance at end of period, assets	2,928	2,928	3,513
Bank | Recurring basis | Loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		25	(296)
Bank | Recurring basis | Commercial and industrial loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,347	1,402
Transfers in, assets		22	390
Transfers out, assets		(12)	(137)
Purchases, assets		10	45
Sales, assets		(31)	(282)
Issuances, assets		119	447
Settlements, assets		(184)	(173)
Gain (loss) on transfers in/out included in trading revenues, assets		14	3
Gain (loss) on all other activity included in trading revenues, assets		57	(194)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		1	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		68	(28)
Balance at end of period, assets	1,411	1,411	1,473
Bank | Recurring basis | Commercial and industrial loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		36	(205)
Bank | Recurring basis | Financial institutions loans
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,082	1,201
Transfers in, assets		0	44
Transfers out, assets		(222)	(94)
Purchases, assets		0	0
Sales, assets		(42)	(32)
Issuances, assets		32	275
Settlements, assets		(296)	(211)
Gain (loss) on transfers in/out included in trading revenues, assets		3	13
Gain (loss) on all other activity included in trading revenues, assets		40	(70)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		46	(26)
Balance at end of period, assets	643	643	1,100
Bank | Recurring basis | Financial institutions loans | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		4	(77)
Bank | Recurring basis | Other intangible assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		180	244
Transfers in, assets		0	0
Transfers out, assets		0	0
Purchases, assets		22	0
Sales, assets		0	0
Issuances, assets		0	0
Settlements, assets		0	0
Gain (loss) on transfers in/out included in trading revenues, assets		0	0
Gain (loss) on all other activity included in trading revenues, assets		0	0
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		(22)	(31)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		9	(4)
Balance at end of period, assets	189	189	209
Bank | Recurring basis | Other intangible assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(22)	(31)
Bank | Recurring basis | Other assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,825	1,846
Transfers in, assets		164	1,432
Transfers out, assets		(451)	(383)
Purchases, assets		2,500	2,400
Sales, assets		(2,176)	(2,260)
Issuances, assets		77	282
Settlements, assets		(573)	(543)
Gain (loss) on transfers in/out included in trading revenues, assets		13	16
Gain (loss) on all other activity included in trading revenues, assets		(42)	(60)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		99	(149)
Balance at end of period, assets	1,436	1,436	2,581
Bank | Recurring basis | Other assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(76)	(6)
Bank | Recurring basis | Other assets - of which loans held-for-sale
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		1,576	1,619
Transfers in, assets		164	1,409
Transfers out, assets		(409)	(339)
Purchases, assets		2,469	2,373
Sales, assets		(2,137)	(2,259)
Issuances, assets		77	282
Settlements, assets		(571)	(543)
Gain (loss) on transfers in/out included in trading revenues, assets		11	(8)
Gain (loss) on all other activity included in trading revenues, assets		19	(87)
Gain (loss) on transfers in/out included in other revenues, assets		0	0
Gain (loss) on all other activity included in other revenues, assets		0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		88	(143)
Balance at end of period, assets	1,287	1,287	2,304
Bank | Recurring basis | Other assets - of which loans held-for-sale | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		(41)	(87)
Bank | Recurring basis | Assets
Assets measured at fair value on a recurring basis for level 3
Balance at beginning of period, assets		16,364	16,334
Transfers in, assets		783	4,564
Transfers out, assets		(3,372)	(2,260)
Purchases, assets		5,435	7,306
Sales, assets		(5,784)	(7,504)
Issuances, assets		747	2,314
Settlements, assets		(2,638)	(2,737)
Gain (loss) on transfers in/out included in trading revenues, assets		60	223
Gain (loss) on all other activity included in trading revenues, assets		166	495
Gain (loss) on transfers in/out included in other revenues, assets		0	(1)
Gain (loss) on all other activity included in other revenues, assets		297	(50)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, assets		0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, assets		0	0
Foreign currency translation impact, assets		748	(575)
Balance at end of period, assets	SFr 12,806	12,806	18,109
Bank | Recurring basis | Assets | Net Revenue [Member]
Assets measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		SFr 101	SFr 781
Bank | Nonrecurring basis | Accounting Standards Update 2019-05 [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Assets measured at fair value on a recurring basis for level 3
Retained Earnings (Accumulated Deficit)						SFr 119

FI - Roll-forward of liabilitie

FI - Roll-forward of liabilities measured at fair value on recurring basis (Details 5) - Recurring basis - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Customer deposits
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	SFr 448	SFr 474
Transfers in, liabilities	0	0
Transfers out, liabilities	0	0
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	0	0
Settlements, liabilities	0	(27)
Gain (loss) on transfers in/out included in trading revenues, liabilities	0	0
Gain (loss) on all other activity included in trading revenues, liabilities	(8)	35
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(13)	(22)
Foreign currency translation impact, liabilities	5	(27)
Balance at end of period, liabilities	432	433
Customer deposits | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	10	9
Obligation to return securities received as collateral
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	101	1
Transfers in, liabilities	0	0
Transfers out, liabilities	0	0
Purchases, liabilities	64	173
Sales, liabilities	(86)	(1)
Issuances, liabilities	0	0
Settlements, liabilities	0	0
Gain (loss) on transfers in/out included in trading revenues, liabilities	0	0
Gain (loss) on all other activity included in trading revenues, liabilities	0	0
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	5	(3)
Balance at end of period, liabilities	84	170
Obligation to return securities received as collateral | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	0	0
Trading liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	4,246	3,854
Transfers in, liabilities	584	513
Transfers out, liabilities	(1,961)	(904)
Purchases, liabilities	80	210
Sales, liabilities	(24)	(195)
Issuances, liabilities	710	1,602
Settlements, liabilities	(1,138)	(1,276)
Gain (loss) on transfers in/out included in trading revenues, liabilities	152	184
Gain (loss) on all other activity included in trading revenues, liabilities	169	(151)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	(5)
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	217	(105)
Balance at end of period, liabilities	3,035	3,727
Trading liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	779	577
Trading liabilities | Derivative instruments
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	4,191	3,801
Transfers in, liabilities	566	497
Transfers out, liabilities	(1,961)	(904)
Purchases, liabilities	69	0
Sales, liabilities	(4)	(3)
Issuances, liabilities	710	1,602
Settlements, liabilities	(1,138)	(1,276)
Gain (loss) on transfers in/out included in trading revenues, liabilities	152	184
Gain (loss) on all other activity included in trading revenues, liabilities	193	(136)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	(5)
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	216	(103)
Balance at end of period, liabilities	2,994	3,657
Trading liabilities | Derivative instruments | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	781	575
Trading liabilities | Derivative instruments | Equity/Index-related products
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	2,010	1,921
Transfers in, liabilities	427	126
Transfers out, liabilities	(1,049)	(493)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	350	585
Settlements, liabilities	(527)	(486)
Gain (loss) on transfers in/out included in trading revenues, liabilities	151	69
Gain (loss) on all other activity included in trading revenues, liabilities	265	(262)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	111	(59)
Balance at end of period, liabilities	1,738	1,401
Trading liabilities | Derivative instruments | Equity/Index-related products | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	529	274
Trading liabilities | Derivative instruments | Credit derivatives
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities		1,211
Transfers in, liabilities		333
Transfers out, liabilities		(373)
Purchases, liabilities		0
Sales, liabilities		0
Issuances, liabilities		896
Settlements, liabilities		(574)
Gain (loss) on transfers in/out included in trading revenues, liabilities		117
Gain (loss) on all other activity included in trading revenues, liabilities		(21)
Gain (loss) on transfers in/out included in other revenues, liabilities		0
Gain (loss) on all other activity included in other revenues, liabilities		0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities		0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities		0
Foreign currency translation impact, liabilities		(31)
Balance at end of period, liabilities		1,558
Trading liabilities | Derivative instruments | Credit derivatives | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		135
Short-term borrowings
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	701	997
Transfers in, liabilities	155	52
Transfers out, liabilities	(207)	(200)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	930	470
Settlements, liabilities	(608)	(706)
Gain (loss) on transfers in/out included in trading revenues, liabilities	(1)	(2)
Gain (loss) on all other activity included in trading revenues, liabilities	95	(118)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	41	(13)
Balance at end of period, liabilities	1,106	480
Short-term borrowings | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	67	(40)
Long-term debt
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	7,268	12,610
Transfers in, liabilities	2,715	1,843
Transfers out, liabilities	(2,046)	(5,514)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	4,401	4,294
Settlements, liabilities	(3,119)	(3,614)
Gain (loss) on transfers in/out included in trading revenues, liabilities	62	461
Gain (loss) on all other activity included in trading revenues, liabilities	(4)	(1,241)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	4	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(3)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(30)	(166)
Foreign currency translation impact, liabilities	425	(269)
Balance at end of period, liabilities	9,673	8,491
Long-term debt | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	210	(110)
Long-term debt | Long-term debt - of which structured notes over one year and up to two years
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	1,133	891
Transfers in, liabilities	1,165	186
Transfers out, liabilities	(732)	(423)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	1,127	632
Settlements, liabilities	(771)	(435)
Gain (loss) on transfers in/out included in trading revenues, liabilities	39	28
Gain (loss) on all other activity included in trading revenues, liabilities	97	(111)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	1
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(1)	5
Foreign currency translation impact, liabilities	67	(18)
Balance at end of period, liabilities	2,124	756
Long-term debt | Long-term debt - of which structured notes over one year and up to two years | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	39	(30)
Long-term debt | Long-term debt - of which structured notes over two years
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	5,526	11,458
Transfers in, liabilities	1,532	707
Transfers out, liabilities	(1,287)	(5,077)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	3,020	3,631
Settlements, liabilities	(2,227)	(3,140)
Gain (loss) on transfers in/out included in trading revenues, liabilities	24	433
Gain (loss) on all other activity included in trading revenues, liabilities	(109)	(1,138)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(2)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(29)	(170)
Foreign currency translation impact, liabilities	329	(245)
Balance at end of period, liabilities	6,777	6,546
Long-term debt | Long-term debt - of which structured notes over two years | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	(59)	(89)
Other liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	1,271	1,385
Transfers in, liabilities	7	168
Transfers out, liabilities	(552)	(112)
Purchases, liabilities	24	195
Sales, liabilities	(46)	(227)
Issuances, liabilities	59	64
Settlements, liabilities	(424)	(289)
Gain (loss) on transfers in/out included in trading revenues, liabilities	8	(27)
Gain (loss) on all other activity included in trading revenues, liabilities	(8)	(15)
Gain (loss) on transfers in/out included in other revenues, liabilities	107	0
Gain (loss) on all other activity included in other revenues, liabilities	38	86
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	51	(27)
Balance at end of period, liabilities	535	1,201
Other liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	2	43
Liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	14,035	19,321
Transfers in, liabilities	3,461	2,576
Transfers out, liabilities	(4,766)	(6,730)
Purchases, liabilities	168	578
Sales, liabilities	(156)	(423)
Issuances, liabilities	6,100	6,430
Settlements, liabilities	(5,289)	(5,912)
Gain (loss) on transfers in/out included in trading revenues, liabilities	221	616
Gain (loss) on all other activity included in trading revenues, liabilities	244	(1,490)
Gain (loss) on transfers in/out included in other revenues, liabilities	107	(5)
Gain (loss) on all other activity included in other revenues, liabilities	42	86
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(3)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(43)	(188)
Foreign currency translation impact, liabilities	744	(444)
Balance at end of period, liabilities	14,865	14,502
Liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	1,068	479
Bank | Customer deposits
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	448	474
Transfers in, liabilities	0	0
Transfers out, liabilities	0	0
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	0	0
Settlements, liabilities	0	(27)
Gain (loss) on transfers in/out included in trading revenues, liabilities	0	0
Gain (loss) on all other activity included in trading revenues, liabilities	(8)	35
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(13)	(22)
Foreign currency translation impact, liabilities	5	(27)
Balance at end of period, liabilities	432	433
Bank | Customer deposits | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	10	9
Bank | Obligation to return securities received as collateral
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	101	1
Transfers in, liabilities	0	0
Transfers out, liabilities	0	0
Purchases, liabilities	64	173
Sales, liabilities	(86)	(1)
Issuances, liabilities	0	0
Settlements, liabilities	0	0
Gain (loss) on transfers in/out included in trading revenues, liabilities	0	0
Gain (loss) on all other activity included in trading revenues, liabilities	0	0
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	5	(3)
Balance at end of period, liabilities	84	170
Bank | Obligation to return securities received as collateral | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	0	0
Bank | Trading liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	4,246	3,854
Transfers in, liabilities	584	513
Transfers out, liabilities	(1,961)	(904)
Purchases, liabilities	80	210
Sales, liabilities	(24)	(195)
Issuances, liabilities	710	1,602
Settlements, liabilities	(1,138)	(1,276)
Gain (loss) on transfers in/out included in trading revenues, liabilities	152	184
Gain (loss) on all other activity included in trading revenues, liabilities	169	(151)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	(5)
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	217	(105)
Balance at end of period, liabilities	3,035	3,727
Bank | Trading liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	779	577
Bank | Trading liabilities | Derivative instruments
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	4,191	3,801
Transfers in, liabilities	566	497
Transfers out, liabilities	(1,961)	(904)
Purchases, liabilities	69	0
Sales, liabilities	(4)	(3)
Issuances, liabilities	710	1,602
Settlements, liabilities	(1,138)	(1,276)
Gain (loss) on transfers in/out included in trading revenues, liabilities	152	184
Gain (loss) on all other activity included in trading revenues, liabilities	193	(136)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	(5)
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	216	(103)
Balance at end of period, liabilities	2,994	3,657
Bank | Trading liabilities | Derivative instruments | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	781	575
Bank | Trading liabilities | Derivative instruments | Equity/Index-related products
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	2,010	1,921
Transfers in, liabilities	427	126
Transfers out, liabilities	(1,049)	(493)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	350	585
Settlements, liabilities	(527)	(486)
Gain (loss) on transfers in/out included in trading revenues, liabilities	151	69
Gain (loss) on all other activity included in trading revenues, liabilities	265	(262)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	111	(59)
Balance at end of period, liabilities	1,738	1,401
Bank | Trading liabilities | Derivative instruments | Equity/Index-related products | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	529	274
Bank | Trading liabilities | Derivative instruments | Credit derivatives
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities		1,211
Transfers in, liabilities		333
Transfers out, liabilities		(373)
Purchases, liabilities		0
Sales, liabilities		0
Issuances, liabilities		896
Settlements, liabilities		(574)
Gain (loss) on transfers in/out included in trading revenues, liabilities		117
Gain (loss) on all other activity included in trading revenues, liabilities		(21)
Gain (loss) on transfers in/out included in other revenues, liabilities		0
Gain (loss) on all other activity included in other revenues, liabilities		0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities		0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities		0
Foreign currency translation impact, liabilities		(31)
Balance at end of period, liabilities		1,558
Bank | Trading liabilities | Derivative instruments | Credit derivatives | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses		135
Bank | Short-term borrowings
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	701	997
Transfers in, liabilities	155	52
Transfers out, liabilities	(207)	(200)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	930	470
Settlements, liabilities	(608)	(706)
Gain (loss) on transfers in/out included in trading revenues, liabilities	(1)	(2)
Gain (loss) on all other activity included in trading revenues, liabilities	95	(118)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	41	(13)
Balance at end of period, liabilities	1,106	480
Bank | Short-term borrowings | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	67	(40)
Bank | Long-term debt
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	7,286	12,749
Transfers in, liabilities	2,697	1,720
Transfers out, liabilities	(2,046)	(5,514)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	4,401	4,294
Settlements, liabilities	(3,119)	(3,614)
Gain (loss) on transfers in/out included in trading revenues, liabilities	62	461
Gain (loss) on all other activity included in trading revenues, liabilities	(8)	(1,241)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(3)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(30)	(165)
Foreign currency translation impact, liabilities	433	(272)
Balance at end of period, liabilities	9,673	8,505
Bank | Long-term debt | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	203	(107)
Bank | Long-term debt | Long-term debt - of which structured notes over one year and up to two years
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	1,133	891
Transfers in, liabilities	1,165	186
Transfers out, liabilities	(732)	(423)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	1,127	632
Settlements, liabilities	(771)	(435)
Gain (loss) on transfers in/out included in trading revenues, liabilities	39	28
Gain (loss) on all other activity included in trading revenues, liabilities	97	(111)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	1
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(1)	5
Foreign currency translation impact, liabilities	67	(18)
Balance at end of period, liabilities	2,124	756
Bank | Long-term debt | Long-term debt - of which structured notes over one year and up to two years | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	39	(30)
Bank | Long-term debt | Long-term debt - of which structured notes over two years
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	5,526	11,458
Transfers in, liabilities	1,532	707
Transfers out, liabilities	(1,287)	(5,077)
Purchases, liabilities	0	0
Sales, liabilities	0	0
Issuances, liabilities	3,020	3,631
Settlements, liabilities	(2,227)	(3,140)
Gain (loss) on transfers in/out included in trading revenues, liabilities	24	433
Gain (loss) on all other activity included in trading revenues, liabilities	(109)	(1,138)
Gain (loss) on transfers in/out included in other revenues, liabilities	0	0
Gain (loss) on all other activity included in other revenues, liabilities	0	0
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(2)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(29)	(170)
Foreign currency translation impact, liabilities	329	(245)
Balance at end of period, liabilities	6,777	6,546
Bank | Long-term debt | Long-term debt - of which structured notes over two years | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	(59)	(89)
Bank | Other liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	1,250	1,367
Transfers in, liabilities	7	168
Transfers out, liabilities	(533)	(112)
Purchases, liabilities	24	195
Sales, liabilities	(46)	(227)
Issuances, liabilities	59	64
Settlements, liabilities	(416)	(283)
Gain (loss) on transfers in/out included in trading revenues, liabilities	8	(27)
Gain (loss) on all other activity included in trading revenues, liabilities	(8)	(17)
Gain (loss) on transfers in/out included in other revenues, liabilities	102	0
Gain (loss) on all other activity included in other revenues, liabilities	38	84
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	0	0
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	0	0
Foreign currency translation impact, liabilities	50	(27)
Balance at end of period, liabilities	535	1,185
Bank | Other liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	2	44
Bank | Liabilities
Liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, liabilities	14,032	19,442
Transfers in, liabilities	3,443	2,453
Transfers out, liabilities	(4,747)	(6,730)
Purchases, liabilities	168	578
Sales, liabilities	(156)	(423)
Issuances, liabilities	6,100	6,430
Settlements, liabilities	(5,281)	(5,906)
Gain (loss) on transfers in/out included in trading revenues, liabilities	221	616
Gain (loss) on all other activity included in trading revenues, liabilities	240	(1,492)
Gain (loss) on transfers in/out included in other revenues, liabilities	102	(5)
Gain (loss) on all other activity included in other revenues, liabilities	38	84
Gain (loss) on transfers in/out included in accumulated other comprehensive income, liabilities	(3)	87
Gain (loss) on all other activity included in accumulated other comprehensive income, liabilities	(43)	(187)
Foreign currency translation impact, liabilities	751	(447)
Balance at end of period, liabilities	14,865	14,500
Bank | Liabilities | Net Revenue [Member]
Liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	SFr 1,061	SFr 483

FI - Roll-forward of net assets

FI - Roll-forward of net assets measured at fair value on recurring basis (Details 7) - Recurring basis - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Net assets/liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, net assets/liabilities	SFr 2,329	SFr (2,987)
Transfers in, net assets/liabilities	(2,678)	1,988
Transfers out, net assets/liabilities	1,394	4,470
Purchases, net assets/liabilities	5,267	6,728
Sales, net assets/liabilities	(5,628)	(7,081)
Issuances, net assets/liabilities	(5,353)	(4,116)
Settlements, net assets/liabilities	2,651	3,175
Gain (loss) on transfers in/out included in trading revenues, net assets/liabilities	(161)	(393)
Gain (loss) on all other activity included in trading revenues, net assets/liabilities	(78)	1,985
Gain (loss) on transfers in/out included in other revenues, net assets/liabilities	(107)	4
Gain (loss) on all other activity included in other revenues, net assets/liabilities	255	(136)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, net assets/liabilities	3	(87)
Gain (loss) on all other activity included in accumulated other comprehensive income, net assets/liabilities	43	188
Foreign currency translation impact, net assets/liabilities	4	(131)
Balance at beginning of period, net assets/liabilities	(2,059)	3,607
Other Comprehensive Income (Loss) [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	16	49
Trading Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	(1,011)	289
Other Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	25	(36)
Net Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	(970)	302
Bank
Net assets/liabilities measured at fair value on a recurring basis for level 3
Balance at beginning of period, net assets/liabilities	2,332	(3,108)
Transfers in, net assets/liabilities	(2,660)	2,111
Transfers out, net assets/liabilities	1,375	4,470
Purchases, net assets/liabilities	5,267	6,728
Sales, net assets/liabilities	(5,628)	(7,081)
Issuances, net assets/liabilities	(5,353)	(4,116)
Settlements, net assets/liabilities	2,643	3,169
Gain (loss) on transfers in/out included in trading revenues, net assets/liabilities	(161)	(393)
Gain (loss) on all other activity included in trading revenues, net assets/liabilities	(74)	1,987
Gain (loss) on transfers in/out included in other revenues, net assets/liabilities	(102)	4
Gain (loss) on all other activity included in other revenues, net assets/liabilities	259	(134)
Gain (loss) on transfers in/out included in accumulated other comprehensive income, net assets/liabilities	3	(87)
Gain (loss) on all other activity included in accumulated other comprehensive income, net assets/liabilities	43	187
Foreign currency translation impact, net assets/liabilities	(3)	(128)
Balance at beginning of period, net assets/liabilities	(2,059)	3,609
Bank | Other Comprehensive Income (Loss) [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	15	50
Bank | Trading Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	(1,003)	284
Bank | Other Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	28	(36)
Bank | Net Revenue [Member]
Net assets/liabilities measured at fair value on a recurring basis for level 3
Changes in unrealized gains/losses	SFr (960)	SFr 298

FI - Difference between fair va

FI - Difference between fair value and unpaid principle balances (Details 10) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Financial instruments
Cash and Due from Banks	SFr 141	SFr 91	SFr 525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465	67,268	57,994
Loans	11,101	11,827	11,408
Other assets	10,342	15,033	8,373
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(10,983)	(9,591)	(13,594)
Short-term borrowings	(8,554)	(11,020)	(10,740)
Long-term debt	(69,436)	(72,312)	(70,976)
Other liabilities	(7,911)	SFr (7,913)	(7,780)
Aggregate fair value
Loans
Non-interest-earning loans	591		543
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Loans	11,101		11,408
Other assets	9,448		7,834
Due to banks and customer deposits	(538)		(578)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(10,983)		(13,594)
Short-term borrowings	(8,554)		(10,740)
Long-term debt	(69,436)		(70,976)
Other liabilities	(883)		(616)
Aggregate unpaid principal
Loans
Non-interest-earning loans	3,543		3,364
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,314		57,895
Loans	11,804		12,079
Other assets	12,122		10,090
Due to banks and customer deposits	(471)		(489)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(10,982)		(13,578)
Short-term borrowings	(8,556)		(10,632)
Long-term debt	(71,204)		(73,842)
Other liabilities	(1,844)		(1,569)
Difference
Loans
Non-interest-earning loans, Difference	(2,952)		(2,821)
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	151		99
Loans	(703)		(671)
Other assets	(2,674)		(2,256)
Due to banks and customer deposits	(67)		(89)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(1)		(16)
Short-term borrowings	2		(108)
Long-term debt	1,768		2,866
Other liabilities	961		953
Bank
Financial instruments
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Loans	11,101		11,408
Other assets	10,342		8,373
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(11,080)		(13,688)
Short-term borrowings	(8,554)		(10,740)
Long-term debt	(68,486)		(70,243)
Other liabilities	(7,891)		(7,756)
Bank | Aggregate fair value
Loans
Non-interest-earning loans	591		543
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Loans	11,101		11,408
Other assets	9,448		7,834
Due to banks and customer deposits	(538)		(578)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(11,080)		(13,688)
Short-term borrowings	(8,554)		(10,740)
Long-term debt	(68,486)		(70,243)
Other liabilities	(883)		(616)
Bank | Aggregate unpaid principal
Loans
Non-interest-earning loans	3,543		3,364
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,314		57,895
Loans	11,804		12,079
Other assets	12,122		10,090
Due to banks and customer deposits	(471)		(489)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(11,079)		(13,672)
Short-term borrowings	(8,556)		(10,632)
Long-term debt	(70,327)		(73,175)
Other liabilities	(1,844)		(1,569)
Bank | Difference
Loans
Non-interest-earning loans, Difference	(2,952)		(2,821)
Financial instruments
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	151		99
Loans	(703)		(671)
Other assets	(2,674)		(2,256)
Due to banks and customer deposits	(67)		(89)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	(1)		(16)
Short-term borrowings	2		(108)
Long-term debt	1,841		2,932
Other liabilities	SFr 961		SFr 953

FI - Gains_losses on financial

FI - Gains/losses on financial instruments (Details 11) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Interest-bearing deposits with banks
Gains (losses) on financial instruments
Net gains/(losses)	SFr 18	SFr 1
Net gains/(losses) of which related to credit risk - on assets	8	(6)
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions
Gains (losses) on financial instruments
Net gains/(losses)	306	789
Other investments
Gains (losses) on financial instruments
Net gains/(losses)	293	205
Net gains/(losses) of which related to credit risk - on assets	0	1
Loans
Gains (losses) on financial instruments
Net gains/(losses)	277	(247)
Net gains/(losses) of which related to credit risk - on assets	59	(575)
Other assets
Gains (losses) on financial instruments
Net gains/(losses)	405	416
Net gains/(losses) of which related to credit risk - on assets	173	(19)
Due to banks and customer deposits
Gains (losses) on financial instruments
Net gains/(losses)	(37)	(39)
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions
Gains (losses) on financial instruments
Net gains/(losses)	(29)	(82)
Short-term borrowings
Gains (losses) on financial instruments
Net gains/(losses)	(406)	(16)
Net gains/(losses) of which related to credit risk - on liabilities	(1)	1
Long-term debt
Gains (losses) on financial instruments
Net gains/(losses)	(3,802)	1,270
Net gains/(losses) of which related to credit risk - on liabilities	0	14
Other liabilities
Gains (losses) on financial instruments
Net gains/(losses)	120	(102)
Net gains/(losses) of which related to credit risk - on liabilities	67	(124)
Bank | Interest-bearing deposits with banks
Gains (losses) on financial instruments
Net gains/(losses)	18	1
Net gains/(losses) of which related to credit risk - on assets	8	(6)
Bank | Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions
Gains (losses) on financial instruments
Net gains/(losses)	306	789
Bank | Other investments
Gains (losses) on financial instruments
Net gains/(losses)	293	205
Net gains/(losses) of which related to credit risk - on assets	0	1
Bank | Loans
Gains (losses) on financial instruments
Net gains/(losses)	277	(247)
Net gains/(losses) of which related to credit risk - on assets	59	(575)
Bank | Other assets
Gains (losses) on financial instruments
Net gains/(losses)	405	416
Net gains/(losses) of which related to credit risk - on assets	173	(19)
Bank | Due to banks and customer deposits
Gains (losses) on financial instruments
Net gains/(losses)	(37)	(39)
Bank | Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions
Gains (losses) on financial instruments
Net gains/(losses)	(29)	(82)
Bank | Short-term borrowings
Gains (losses) on financial instruments
Net gains/(losses)	(406)	(16)
Net gains/(losses) of which related to credit risk - on liabilities	(1)	1
Bank | Long-term debt
Gains (losses) on financial instruments
Net gains/(losses)	(3,347)	1,842
Net gains/(losses) of which related to credit risk - on liabilities	0	14
Bank | Other liabilities
Gains (losses) on financial instruments
Net gains/(losses)	120	(102)
Net gains/(losses) of which related to credit risk - on liabilities	SFr 67	SFr (124)

FI - Quantitative information a

FI - Quantitative information about level 3 assets at fair value (Details 14) SFr in Millions, Pure in Millions	Jun. 30, 2021CHF (SFr)	Mar. 31, 2021CHF (SFr)	Dec. 31, 2020CHF (SFr)
Assets
Cash and Due from Banks	SFr 141	SFr 91	SFr 525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465	67,268	57,994
Securities received as collateral	38,686	56,494	50,773
Trading assets	130,505	157,139	157,338
Available-for-sale Securities, Debt Securities	794	614	607
Other investments	2,747	3,937	3,794
Loans	11,101	11,827	11,408
Other intangible assets (mortgage servicing rights), at fair value	189	181	180
Other assets	10,342	SFr 15,033	8,373
Recurring basis
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,505		157,338
Available-for-sale Securities, Debt Securities	794		607
Other investments	2,747		3,794
Loans	11,101		11,408
Loans - of which commercial and industrial	3,123		3,534
Loans - of which financial institutions	4,601		4,588
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Other assets - of which loans held-for-sale	7,720		6,446
Total assets at fair value	263,970		290,992
Recurring basis | Other equity investments
Assets
Other investments	1,747		2,759
Recurring basis | Life finance instruments
Assets
Other investments	877		920
Recurring basis | Debt securities
Assets
Trading assets	57,620		64,395
Recurring basis | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	22,301		27,957
Recurring basis | Debt securities | Corporate debt securities
Assets
Trading assets	11,078		11,477
Recurring basis | Debt securities | RMBS
Assets
Trading assets	21,005		21,439
Recurring basis | Equity securities
Assets
Trading assets	44,226		63,237
Recurring basis | Derivative instruments
Assets
Trading assets	24,156		25,531
Recurring basis | Other
Assets
Trading assets	4,503		4,175
Recurring basis | Level 3
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	84		101
Trading assets	5,938		7,535
Available-for-sale Securities, Debt Securities	0		0
Other investments	2,231		3,054
Loans	2,928		3,669
Loans - of which commercial and industrial	1,411		1,347
Loans - of which financial institutions	643		1,082
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	1,436		1,825
Other assets - of which loans held-for-sale	1,287		1,576
Total assets at fair value	12,806		16,364
Recurring basis | Level 3 | Option model
Assets
Loans - of which commercial and industrial			72
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member]
Assets
Loans - of which commercial and industrial	724		908
Loans - of which financial institutions	529		674
Other assets - of which loans held-for-sale	SFr 354		SFr 296
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input	146		237
Loans - of which financial institutions, measurement input	164		192
Other assets - of which loans held-for-sale, measurement input	279		246
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input	2,014		1,480
Loans - of which financial institutions, measurement input	1,615		1,698
Other assets - of which loans held-for-sale, measurement input	932		506
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input	589		554
Loans - of which financial institutions, measurement input	622		612
Other assets - of which loans held-for-sale, measurement input	325		343
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input			25
Loans - of which financial institutions, measurement input			25
Other assets - of which loans held-for-sale, measurement input			1
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input			25
Loans - of which financial institutions, measurement input			40
Other assets - of which loans held-for-sale, measurement input			40
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input			25
Loans - of which financial institutions, measurement input			25
Other assets - of which loans held-for-sale, measurement input			34
Recurring basis | Level 3 | Price
Assets
Loans - of which commercial and industrial	SFr 597
Loans - of which financial institutions	SFr 113
Recurring basis | Level 3 | Price | Measurement Input, Credit Spread [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input	300
Recurring basis | Level 3 | Price | Measurement Input, Credit Spread [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input	300
Recurring basis | Level 3 | Price | Measurement Input, Credit Spread [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input	300
Recurring basis | Level 3 | Price | Measurement Input, Quoted Price [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input	7
Loans - of which financial institutions, measurement input	10
Recurring basis | Level 3 | Price | Measurement Input, Quoted Price [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input	100
Loans - of which financial institutions, measurement input	61
Recurring basis | Level 3 | Price | Measurement Input, Quoted Price [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input	77
Loans - of which financial institutions, measurement input	28
Recurring basis | Level 3 | Vendor price
Assets
Other assets - of which loans held-for-sale	SFr 17
Recurring basis | Level 3 | Vendor price | Measurement Input, Price Volatility [Member] | Minimum
Assets
Other assets - of which loans held-for-sale, measurement input	0
Recurring basis | Level 3 | Vendor price | Measurement Input, Price Volatility [Member] | Maximum
Assets
Other assets - of which loans held-for-sale, measurement input	63
Recurring basis | Level 3 | Vendor price | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Other assets - of which loans held-for-sale, measurement input	53
Recurring basis | Level 3 | Market comparable
Assets
Loans - of which commercial and industrial			SFr 338
Loans - of which financial institutions			190
Other assets - of which loans held-for-sale	SFr 885		SFr 1,277
Recurring basis | Level 3 | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input			0
Loans - of which financial institutions, measurement input			0
Other assets - of which loans held-for-sale, measurement input	0		0
Recurring basis | Level 3 | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input			100
Loans - of which financial institutions, measurement input			100
Other assets - of which loans held-for-sale, measurement input	152		111
Recurring basis | Level 3 | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input			70
Loans - of which financial institutions, measurement input			54
Other assets - of which loans held-for-sale, measurement input	81		71
Recurring basis | Level 3 | Market comparable | Measurement Input, Pre-IPO instrinsic option [Member] | Minimum
Assets
Loans - of which commercial and industrial, measurement input			100
Recurring basis | Level 3 | Market comparable | Measurement Input, Pre-IPO instrinsic option [Member] | Maximum
Assets
Loans - of which commercial and industrial, measurement input			100
Recurring basis | Level 3 | Market comparable | Measurement Input, Pre-IPO instrinsic option [Member] | Weighted average
Assets
Loans - of which commercial and industrial, measurement input			100
Recurring basis | Level 3 | Other equity investments
Assets
Other investments	SFr 1,353		SFr 2,132
Recurring basis | Level 3 | Other equity investments | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Minimum
Assets
Other investments	1
Recurring basis | Level 3 | Other equity investments | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Maximum
Assets
Other investments	1,244
Recurring basis | Level 3 | Other equity investments | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Other investments	425
Recurring basis | Level 3 | Other equity investments | Vendor price
Assets
Other investments			110
Recurring basis | Level 3 | Other equity investments | NAV/adjusted NAV
Assets
Other investments	974		974
Recurring basis | Level 3 | Other equity investments | NAV/adjusted NAV | Measurement Input, Price Volatility [Member] | Minimum
Assets
Other investments	310		310
Recurring basis | Level 3 | Other equity investments | NAV/adjusted NAV | Measurement Input, Price Volatility [Member] | Maximum
Assets
Other investments	310		310
Recurring basis | Level 3 | Other equity investments | NAV/adjusted NAV | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Other investments	310		310
Recurring basis | Level 3 | Other equity investments | Market comparable
Assets
Other investments	326
Recurring basis | Level 3 | Other equity investments | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Assets
Other investments	100
Recurring basis | Level 3 | Other equity investments | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Assets
Other investments	100
Recurring basis | Level 3 | Other equity investments | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Other investments	100
Recurring basis | Level 3 | Life finance instruments
Assets
Other investments	877		920
Recurring basis | Level 3 | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Minimum
Assets
Other investments	2
Recurring basis | Level 3 | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Maximum
Assets
Other investments	16
Recurring basis | Level 3 | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Weighted average
Assets
Other investments	6
Recurring basis | Level 3 | Debt securities
Assets
Trading assets	1,655		2,253
Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	40		140
Recurring basis | Level 3 | Debt securities | Corporate debt securities
Assets
Trading assets	889		1,270
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Option model
Assets
Trading assets	641		416
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member]
Assets
Trading assets	SFr 172		SFr 386
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Assets
Trading assets, measurement input	40		(9)
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Assets
Trading assets, measurement input	973		1,509
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Assets
Trading assets, measurement input	1,928		1,007
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Price in percent [Member] | Minimum
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Price in percent [Member] | Maximum
Assets
Trading assets, measurement input	100
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Price in percent [Member] | Weighted average
Assets
Trading assets, measurement input	28
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Assets
Trading assets, measurement input	1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Assets
Trading assets, measurement input	1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Minimum
Assets
Trading assets, measurement input	50
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Maximum
Assets
Trading assets, measurement input	100
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Weighted average
Assets
Trading assets, measurement input	73
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Credit Spread [Member] | Minimum
Assets
Trading assets, measurement input	(4)
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Credit Spread [Member] | Maximum
Assets
Trading assets, measurement input	105
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Assets
Trading assets, measurement input	81
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Minimum
Assets
Trading assets, measurement input	(85)		(50)
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Maximum
Assets
Trading assets, measurement input	100		100
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Weighted average
Assets
Trading assets, measurement input	68		55
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Fund gap risk [Member] | Minimum
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Fund gap risk [Member] | Maximum
Assets
Trading assets, measurement input	3
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Fund gap risk [Member] | Weighted average
Assets
Trading assets, measurement input	1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Minimum
Assets
Trading assets, measurement input			0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Maximum
Assets
Trading assets, measurement input			2
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Weighted average
Assets
Trading assets, measurement input			0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Recovery rate [Member] | Minimum
Assets
Trading assets, measurement input			40
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Recovery rate [Member] | Maximum
Assets
Trading assets, measurement input			40
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Assets
Trading assets, measurement input			40
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Minimum
Assets
Trading assets, measurement input	0		0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Maximum
Assets
Trading assets, measurement input	137		158
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	18		23
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Price
Assets
Trading assets	SFr 55
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Price | Measurement Input, Price in percent [Member] | Minimum
Assets
Trading assets, measurement input	32
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Price | Measurement Input, Price in percent [Member] | Maximum
Assets
Trading assets, measurement input	116
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Price | Measurement Input, Price in percent [Member] | Weighted average
Assets
Trading assets, measurement input	86
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price
Assets
Trading assets	SFr 5		SFr 71
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Price Volatility [Member] | Minimum
Assets
Trading assets, measurement input	0		0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Price Volatility [Member] | Maximum
Assets
Trading assets, measurement input	153		2,292
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	135		1,654
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Unadjusted NAV [Member] | Minimum
Assets
Trading assets, measurement input			1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Unadjusted NAV [Member] | Maximum
Assets
Trading assets, measurement input			1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Vendor price | Measurement Input, Unadjusted NAV [Member] | Weighted average
Assets
Trading assets, measurement input			1
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Market comparable
Assets
Trading assets	SFr 12		SFr 321
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Assets
Trading assets, measurement input	0		0
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Assets
Trading assets, measurement input	100		227
Recurring basis | Level 3 | Debt securities | Corporate debt securities | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	63		95
Recurring basis | Level 3 | Debt securities | RMBS
Assets
Trading assets	SFr 477		SFr 557
Recurring basis | Level 3 | Equity securities
Assets
Trading assets	282		124
Recurring basis | Level 3 | Derivative instruments
Assets
Trading assets	2,883		3,911
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	805		733
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Option model
Assets
Trading assets	756
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member]
Assets
Trading assets	SFr 7
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Minimum
Assets
Trading assets, measurement input	3
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Maximum
Assets
Trading assets, measurement input	10
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Weighted average
Assets
Trading assets, measurement input	6
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Volatility [Member] | Minimum
Assets
Trading assets, measurement input	93
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Volatility [Member] | Maximum
Assets
Trading assets, measurement input	97
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	95
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Minimum
Assets
Trading assets, measurement input	1
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Maximum
Assets
Trading assets, measurement input	100
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Weighted average
Assets
Trading assets, measurement input	8
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Mean reversion [Member] | Minimum
Assets
Trading assets, measurement input	(55)
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Mean reversion [Member] | Maximum
Assets
Trading assets, measurement input	(8)
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Mean reversion [Member] | Weighted average
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Prepayment Rate [Member] | Minimum
Assets
Trading assets, measurement input	3
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Prepayment Rate [Member] | Maximum
Assets
Trading assets, measurement input	28
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Prepayment Rate [Member] | Weighted average
Assets
Trading assets, measurement input	10
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Minimum
Assets
Trading assets, measurement input	(3)
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Maximum
Assets
Trading assets, measurement input	1
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	SFr 139		143
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	490		SFr 1,186
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Minimum
Assets
Trading assets, measurement input			50
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Maximum
Assets
Trading assets, measurement input			100
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Buyback probability [Member] | Weighted average
Assets
Trading assets, measurement input			66
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Minimum
Assets
Trading assets, measurement input			(50)
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Maximum
Assets
Trading assets, measurement input			100
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Correlation [Member] | Weighted average
Assets
Trading assets, measurement input			58
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Minimum
Assets
Trading assets, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Maximum
Assets
Trading assets, measurement input			4
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Gap risk [Member] | Weighted average
Assets
Trading assets, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Minimum
Assets
Trading assets, measurement input			(2)
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Maximum
Assets
Trading assets, measurement input			158
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Volatility [Member] | Weighted average
Assets
Trading assets, measurement input			24
Recurring basis | Level 3 | Derivative instruments | Other derivatives
Assets
Trading assets	SFr 1,073		SFr 1,079
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Minimum
Assets
Trading assets, measurement input	2		2
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Maximum
Assets
Trading assets, measurement input	15		14
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Weighted average
Assets
Trading assets, measurement input	6		6
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Mortality Rate [Member] | Minimum
Assets
Trading assets, measurement input	72		72
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Mortality Rate [Member] | Maximum
Assets
Trading assets, measurement input	137		137
Recurring basis | Level 3 | Derivative instruments | Other derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Mortality Rate [Member] | Weighted average
Assets
Trading assets, measurement input	98		98
Recurring basis | Level 3 | Other
Assets
Trading assets	SFr 1,118		SFr 1,247
Recurring basis | Level 3 | Other | Option model
Assets
Trading assets	SFr 133
Recurring basis | Level 3 | Other | Option model | Measurement Input, Mortality Rate [Member] | Minimum
Assets
Trading assets, measurement input	0
Recurring basis | Level 3 | Other | Option model | Measurement Input, Mortality Rate [Member] | Maximum
Assets
Trading assets, measurement input	70
Recurring basis | Level 3 | Other | Option model | Measurement Input, Mortality Rate [Member] | Weighted average
Assets
Trading assets, measurement input	6
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member]
Assets
Trading assets	SFr 728		766
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Minimum
Assets
Other investments			9
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Maximum
Assets
Other investments			9
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Weighted average
Assets
Other investments			SFr 9
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Minimum
Assets
Trading assets, measurement input	3		3
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Maximum
Assets
Trading assets, measurement input	14		14
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Weighted average
Assets
Trading assets, measurement input	7		7
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Terminal Growth Rate [Member] | Minimum
Assets
Other investments			SFr 3
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Terminal Growth Rate [Member] | Maximum
Assets
Other investments			3
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Terminal Growth Rate [Member] | Weighted average
Assets
Other investments			3
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Tax Swap Rate [Member] | Minimum
Assets
Trading assets, measurement input	30
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Tax Swap Rate [Member] | Maximum
Assets
Trading assets, measurement input	30
Recurring basis | Level 3 | Other | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Tax Swap Rate [Member] | Weighted average
Assets
Trading assets, measurement input	30
Recurring basis | Level 3 | Other | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Minimum
Assets
Other investments			1
Recurring basis | Level 3 | Other | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Maximum
Assets
Other investments			1,249
Recurring basis | Level 3 | Other | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Other investments			713
Recurring basis | Level 3 | Other | Market comparable
Assets
Trading assets	SFr 256
Recurring basis | Level 3 | Other | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Assets
Trading assets, measurement input	0
Other investments			100
Recurring basis | Level 3 | Other | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Assets
Trading assets, measurement input	125
Other investments			100
Recurring basis | Level 3 | Other | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Assets
Trading assets, measurement input	28
Other investments			100
Recurring basis | Level 3 | Other | Other equity investments | Valuation Technique, Discounted Cash Flow [Member]
Assets
Other investments			840
Recurring basis | Level 3 | Other | Other equity investments | Market comparable
Assets
Other investments			118
Recurring basis | Level 3 | Other | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Minimum
Assets
Other investments			2
Recurring basis | Level 3 | Other | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Maximum
Assets
Other investments			15
Recurring basis | Level 3 | Other | Life finance instruments | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Market implied life expectancy [Member] | Weighted average
Assets
Other investments			6
Bank
Assets
Cash and Due from Banks	SFr 141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,684		157,511
Available-for-sale Securities, Debt Securities	792		605
Other investments	2,746		3,793
Loans	11,101		11,408
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Bank | Recurring basis
Assets
Cash and Due from Banks	141		525
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Securities received as collateral	38,686		50,773
Trading assets	130,684		157,511
Available-for-sale Securities, Debt Securities	792		605
Other investments	2,746		3,793
Loans	11,101		11,408
Loans - of which commercial and industrial	3,123		3,534
Loans - of which financial institutions	4,601		4,588
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	10,342		8,373
Other assets - of which loans held-for-sale	7,720		6,446
Total assets at fair value	264,146		291,162
Bank | Recurring basis | Other equity investments
Assets
Other investments	1,746		2,760
Bank | Recurring basis | Life finance instruments
Assets
Other investments	877		920
Bank | Recurring basis | Debt securities
Assets
Trading assets	57,739		64,532
Bank | Recurring basis | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	22,301		27,957
Bank | Recurring basis | Debt securities | Corporate debt securities
Assets
Trading assets	11,197		11,614
Bank | Recurring basis | Debt securities | RMBS
Assets
Trading assets	21,005		21,439
Bank | Recurring basis | Equity securities
Assets
Trading assets	44,287		63,273
Bank | Recurring basis | Derivative instruments
Assets
Trading assets	24,155		25,531
Bank | Recurring basis | Other
Assets
Trading assets	4,503		4,175
Bank | Recurring basis | Level 3
Assets
Cash and Due from Banks	0		0
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Securities received as collateral	84		101
Trading assets	5,938		7,535
Available-for-sale Securities, Debt Securities	0		0
Other investments	2,231		3,054
Loans	2,928		3,669
Loans - of which commercial and industrial	1,411		1,347
Loans - of which financial institutions	643		1,082
Other intangible assets (mortgage servicing rights), at fair value	189		180
Other assets	1,436		1,825
Other assets - of which loans held-for-sale	1,287		1,576
Total assets at fair value	12,806		16,364
Bank | Recurring basis | Level 3 | Other equity investments
Assets
Other investments	1,353		2,132
Bank | Recurring basis | Level 3 | Life finance instruments
Assets
Other investments	877		920
Bank | Recurring basis | Level 3 | Debt securities
Assets
Trading assets	1,655		2,253
Bank | Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Assets
Trading assets	40		140
Bank | Recurring basis | Level 3 | Debt securities | Corporate debt securities
Assets
Trading assets	889		1,270
Bank | Recurring basis | Level 3 | Debt securities | RMBS
Assets
Trading assets	477		557
Bank | Recurring basis | Level 3 | Equity securities
Assets
Trading assets	282		124
Bank | Recurring basis | Level 3 | Derivative instruments
Assets
Trading assets	2,883		3,911
Bank | Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Assets
Trading assets	805		733
Bank | Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Assets
Trading assets	139		143
Bank | Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Assets
Trading assets	490		1,186
Bank | Recurring basis | Level 3 | Derivative instruments | Other derivatives
Assets
Trading assets	1,073		1,079
Bank | Recurring basis | Level 3 | Other
Assets
Trading assets	SFr 1,118		SFr 1,247

FI - Quantitative information_2

FI - Quantitative information about level 3 liabilities at fair value (Details 15) SFr in Millions, Pure in Millions	Jun. 30, 2021CHF (SFr)	Mar. 31, 2021CHF (SFr)	Dec. 31, 2020CHF (SFr)
Liabilities
Due to banks	SFr 330	SFr 800	SFr 413
Customer deposits	3,921	4,221	4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983	9,591	13,594
Obligation to return securities received as collateral	38,686	56,494	50,773
Trading liabilities	32,972	47,740	45,871
Short-term borrowings	8,554	11,020	10,740
Long-term debt	69,436	72,312	70,976
Other liabilities	7,911	SFr 7,913	7,780
Recurring basis
Liabilities
Due to banks	330		413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983		13,594
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,972		45,871
Short-term borrowings	8,554		10,740
Long-term debt	69,436		70,976
Other liabilities	7,911		7,780
Total liabilities at fair value	172,793		204,490
Recurring basis | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	13,866		12,920
Recurring basis | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	30,865		33,856
Recurring basis | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,080		10,586
Recurring basis | Debt securities
Liabilities
Trading liabilities	8,053
Recurring basis | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	4,133
Recurring basis | Equity securities
Liabilities
Trading liabilities	12,316		20,694
Recurring basis | Derivative instruments
Liabilities
Trading liabilities	12,603		17,745
Recurring basis | Level 3
Liabilities
Due to banks	0		0
Customer deposits	432		448
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	84		101
Trading liabilities	3,035		4,246
Short-term borrowings	1,106		701
Long-term debt	9,673		7,268
Other liabilities	535		1,271
Total liabilities at fair value	14,865		14,035
Recurring basis | Level 3 | Option model
Liabilities
Short-term borrowings	SFr 968		SFr 508
Recurring basis | Level 3 | Option model | Measurement Input, Buyback probability [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	50		50
Recurring basis | Level 3 | Option model | Measurement Input, Buyback probability [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	100		100
Recurring basis | Level 3 | Option model | Measurement Input, Buyback probability [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	73		66
Recurring basis | Level 3 | Option model | Measurement Input, Correlation [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	(85)		(50)
Recurring basis | Level 3 | Option model | Measurement Input, Correlation [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	100		100
Recurring basis | Level 3 | Option model | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	68		56
Recurring basis | Level 3 | Option model | Measurement Input, Fund gap risk [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	0		0
Recurring basis | Level 3 | Option model | Measurement Input, Fund gap risk [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	3		2
Recurring basis | Level 3 | Option model | Measurement Input, Fund gap risk [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	1		0
Recurring basis | Level 3 | Option model | Measurement Input, Gap risk [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	0
Recurring basis | Level 3 | Option model | Measurement Input, Gap risk [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	4
Recurring basis | Level 3 | Option model | Measurement Input, Gap risk [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	1
Recurring basis | Level 3 | Option model | Measurement Input, Volatility [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	0		3
Recurring basis | Level 3 | Option model | Measurement Input, Volatility [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	137		158
Recurring basis | Level 3 | Option model | Measurement Input, Volatility [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	16		30
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member]
Liabilities
Short-term borrowings	SFr 44		SFr 58
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	104		(4)
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	1,036		992
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	788		722
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Liabilities
Short-term borrowings, measurement input			35
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Liabilities
Short-term borrowings, measurement input			40
Recurring basis | Level 3 | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input			39
Recurring basis | Level 3 | Price
Liabilities
Short-term borrowings	SFr 12
Recurring basis | Level 3 | Price | Measurement Input, Price in percent [Member] | Minimum
Liabilities
Short-term borrowings, measurement input	59
Recurring basis | Level 3 | Price | Measurement Input, Price in percent [Member] | Maximum
Liabilities
Short-term borrowings, measurement input	59
Recurring basis | Level 3 | Price | Measurement Input, Price in percent [Member] | Weighted average
Liabilities
Short-term borrowings, measurement input	59
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	SFr 2,124		SFr 1,133
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model
Liabilities
Long-term debt	SFr 2,110		SFr 1,051
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Buyback probability [Member] | Minimum
Liabilities
Long-term debt, measurement input	50		50
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Buyback probability [Member] | Maximum
Liabilities
Long-term debt, measurement input	100		100
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Buyback probability [Member] | Weighted average
Liabilities
Long-term debt, measurement input	73		66
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Long-term debt, measurement input	(4)
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Long-term debt, measurement input	105
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Long-term debt, measurement input	81
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Correlation [Member] | Minimum
Liabilities
Long-term debt, measurement input	(85)		(50)
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Correlation [Member] | Maximum
Liabilities
Long-term debt, measurement input	100		100
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Long-term debt, measurement input	69		55
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Fund gap risk [Member] | Minimum
Liabilities
Long-term debt, measurement input	0		0
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Fund gap risk [Member] | Maximum
Liabilities
Long-term debt, measurement input	3		2
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Fund gap risk [Member] | Weighted average
Liabilities
Long-term debt, measurement input	1		0
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Gap risk [Member] | Minimum
Liabilities
Long-term debt, measurement input	0		0
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Gap risk [Member] | Maximum
Liabilities
Long-term debt, measurement input	4		4
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Gap risk [Member] | Weighted average
Liabilities
Long-term debt, measurement input	1		1
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Volatility [Member] | Minimum
Liabilities
Long-term debt, measurement input	0		0
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Volatility [Member] | Maximum
Liabilities
Long-term debt, measurement input	137		158
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Volatility [Member] | Weighted average
Liabilities
Long-term debt, measurement input	18		24
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Unadjusted NAV [Member] | Minimum
Liabilities
Long-term debt, measurement input	42
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Unadjusted NAV [Member] | Maximum
Liabilities
Long-term debt, measurement input	3,544
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Option model | Measurement Input, Unadjusted NAV [Member] | Weighted average
Liabilities
Long-term debt, measurement input	876
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member]
Liabilities
Long-term debt	SFr 12		SFr 48
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Long-term debt, measurement input	40		35
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Long-term debt, measurement input	40		189
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Long-term debt, measurement input	40		52
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Liabilities
Long-term debt, measurement input			25
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Liabilities
Long-term debt, measurement input			25
Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Liabilities
Long-term debt, measurement input			25
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	SFr 6,777		SFr 5,526
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model
Liabilities
Long-term debt	SFr 6,521		SFr 3,961
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Buyback probability [Member] | Minimum
Liabilities
Long-term debt, measurement input	50		50
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Buyback probability [Member] | Maximum
Liabilities
Long-term debt, measurement input	100		100
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Buyback probability [Member] | Weighted average
Liabilities
Long-term debt, measurement input	73		66
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Long-term debt, measurement input	(4)
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Long-term debt, measurement input	105
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Long-term debt, measurement input	81
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Correlation [Member] | Minimum
Liabilities
Long-term debt, measurement input	(85)		(50)
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Correlation [Member] | Maximum
Liabilities
Long-term debt, measurement input	100		100
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Long-term debt, measurement input	68		55
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Fund gap risk [Member] | Minimum
Liabilities
Long-term debt, measurement input	0
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Fund gap risk [Member] | Maximum
Liabilities
Long-term debt, measurement input	3
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Fund gap risk [Member] | Weighted average
Liabilities
Long-term debt, measurement input	1
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Gap risk [Member] | Minimum
Liabilities
Long-term debt, measurement input			0
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Gap risk [Member] | Maximum
Liabilities
Long-term debt, measurement input			2
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Gap risk [Member] | Weighted average
Liabilities
Long-term debt, measurement input			0
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Mean reversion [Member] | Minimum
Liabilities
Long-term debt, measurement input			(10)
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Mean reversion [Member] | Maximum
Liabilities
Long-term debt, measurement input			0
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Mean reversion [Member] | Weighted average
Liabilities
Long-term debt, measurement input			(5)
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Volatility [Member] | Minimum
Liabilities
Long-term debt, measurement input	0		0
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Volatility [Member] | Maximum
Liabilities
Long-term debt, measurement input	137		158
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Volatility [Member] | Weighted average
Liabilities
Long-term debt, measurement input	14		21
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Unadjusted NAV [Member] | Minimum
Liabilities
Long-term debt, measurement input	42
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Unadjusted NAV [Member] | Maximum
Liabilities
Long-term debt, measurement input	3,544
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Option model | Measurement Input, Unadjusted NAV [Member] | Weighted average
Liabilities
Long-term debt, measurement input	876
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member]
Liabilities
Long-term debt	SFr 110		SFr 1,380
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Long-term debt, measurement input	2		(14)
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Long-term debt, measurement input	309		481
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Long-term debt, measurement input	84		58
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Liabilities
Long-term debt, measurement input			23
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Liabilities
Long-term debt, measurement input			40
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Liabilities
Long-term debt, measurement input			38
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Price
Liabilities
Long-term debt	SFr 12
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Price | Measurement Input, Price in percent [Member] | Minimum
Liabilities
Long-term debt, measurement input	4
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Price | Measurement Input, Price in percent [Member] | Maximum
Liabilities
Long-term debt, measurement input	26
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Price | Measurement Input, Price in percent [Member] | Weighted average
Liabilities
Long-term debt, measurement input	21
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Market comparable
Liabilities
Long-term debt			SFr 9
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Liabilities
Long-term debt, measurement input			27
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Liabilities
Long-term debt, measurement input			46
Recurring basis | Level 3 | Long-term debt - of which structured notes over two years | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Liabilities
Long-term debt, measurement input			27
Recurring basis | Level 3 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	SFr 0		SFr 0
Recurring basis | Level 3 | Debt securities
Liabilities
Trading liabilities	0
Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	0
Recurring basis | Level 3 | Equity securities
Liabilities
Trading liabilities	41		55
Recurring basis | Level 3 | Derivative instruments
Liabilities
Trading liabilities	2,994		4,191
Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	142		169
Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	62		72
Recurring basis | Level 3 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			1,335
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model
Liabilities
Trading liabilities			SFr 12
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Trading liabilities, measurement input			13
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Trading liabilities, measurement input			865
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			250
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Correlation [Member] | Minimum
Liabilities
Trading liabilities, measurement input			49
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Correlation [Member] | Maximum
Liabilities
Trading liabilities, measurement input			50
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Option model | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			50
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member]
Liabilities
Trading liabilities			SFr 738
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Minimum
Liabilities
Trading liabilities, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Maximum
Liabilities
Trading liabilities, measurement input			1,468
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Credit Spread [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			391
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Correlation [Member] | Minimum
Liabilities
Trading liabilities, measurement input			37
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Correlation [Member] | Maximum
Liabilities
Trading liabilities, measurement input			45
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			44
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Minimum
Liabilities
Trading liabilities, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Maximum
Liabilities
Trading liabilities, measurement input			7
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			3
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Minimum
Liabilities
Trading liabilities, measurement input			6
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Maximum
Liabilities
Trading liabilities, measurement input			19
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			14
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Funding spread [Member] | Minimum
Liabilities
Trading liabilities, measurement input			55
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Funding spread [Member] | Maximum
Liabilities
Trading liabilities, measurement input			183
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Funding spread [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			120
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Loss Severity [Member] | Minimum
Liabilities
Trading liabilities, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Loss Severity [Member] | Maximum
Liabilities
Trading liabilities, measurement input			100
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Loss Severity [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			68
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Minimum
Liabilities
Trading liabilities, measurement input			0
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Maximum
Liabilities
Trading liabilities, measurement input			9
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Prepayment Rate [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			7
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Minimum
Liabilities
Trading liabilities, measurement input			12
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Maximum
Liabilities
Trading liabilities, measurement input			81
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Recovery rate [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			38
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Market comparable
Liabilities
Trading liabilities			SFr 520
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Liabilities
Trading liabilities, measurement input			84
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Liabilities
Trading liabilities, measurement input			116
Recurring basis | Level 3 | Derivative instruments | Credit derivatives | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Liabilities
Trading liabilities, measurement input			99
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	1,738		SFr 2,010
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model
Liabilities
Trading liabilities	SFr 1,688
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Buyback probability [Member] | Minimum
Liabilities
Trading liabilities, measurement input	50		50
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Buyback probability [Member] | Maximum
Liabilities
Trading liabilities, measurement input	100		100
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Buyback probability [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	73		66
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Correlation [Member] | Minimum
Liabilities
Trading liabilities, measurement input	(85)		(50)
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Correlation [Member] | Maximum
Liabilities
Trading liabilities, measurement input	100		100
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Correlation [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	67		58
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Volatility [Member] | Minimum
Liabilities
Trading liabilities, measurement input	(3)		(2)
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Volatility [Member] | Maximum
Liabilities
Trading liabilities, measurement input	137		158
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Volatility [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	18		27
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Unadjusted NAV [Member] | Minimum
Liabilities
Trading liabilities, measurement input	42
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Unadjusted NAV [Member] | Maximum
Liabilities
Trading liabilities, measurement input	3,544
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Unadjusted NAV [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	876
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Dividend yield [Member] | Minimum
Liabilities
Trading liabilities, measurement input	1
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Dividend yield [Member] | Maximum
Liabilities
Trading liabilities, measurement input	8
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Option model | Measurement Input, Dividend yield [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	4
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Price
Liabilities
Trading liabilities	SFr 46
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Vendor price | Measurement Input, Price Volatility [Member] | Minimum
Liabilities
Trading liabilities, measurement input	0
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Vendor price | Measurement Input, Price Volatility [Member] | Maximum
Liabilities
Trading liabilities, measurement input	1,636
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Vendor price | Measurement Input, Price Volatility [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	1
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Market comparable
Liabilities
Trading liabilities	SFr 3
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Market comparable | Measurement Input, Price Volatility [Member] | Minimum
Liabilities
Trading liabilities, measurement input	0
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Market comparable | Measurement Input, Price Volatility [Member] | Maximum
Liabilities
Trading liabilities, measurement input	34
Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products | Market comparable | Measurement Input, Price Volatility [Member] | Weighted average
Liabilities
Trading liabilities, measurement input	30
Bank
Liabilities
Due to banks	SFr 330		SFr 413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,971		45,871
Short-term borrowings	8,554		10,740
Long-term debt	68,486		70,243
Other liabilities	7,891		7,756
Bank | Recurring basis
Liabilities
Due to banks	330		413
Customer deposits	3,921		4,343
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Obligation to return securities received as collateral	38,686		50,773
Trading liabilities	32,971		45,871
Short-term borrowings	8,554		10,740
Long-term debt	68,486		70,243
Other liabilities	7,891		7,756
Total liabilities at fair value	171,919		203,827
Bank | Recurring basis | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	13,866		12,920
Bank | Recurring basis | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	30,865		33,856
Bank | Recurring basis | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	11,124		10,627
Bank | Recurring basis | Debt securities
Liabilities
Trading liabilities	8,054
Bank | Recurring basis | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	4,133
Bank | Recurring basis | Equity securities
Liabilities
Trading liabilities	12,315		20,694
Bank | Recurring basis | Derivative instruments
Liabilities
Trading liabilities	12,602		17,745
Bank | Recurring basis | Level 3
Liabilities
Due to banks	0		0
Customer deposits	432		448
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Obligation to return securities received as collateral	84		101
Trading liabilities	3,035		4,246
Short-term borrowings	1,106		701
Long-term debt	9,673		7,286
Other liabilities	535		1,250
Total liabilities at fair value	14,865		14,032
Bank | Recurring basis | Level 3 | Long-term debt - of which structured notes over one year and up to two years
Liabilities
Long-term debt	2,124		1,133
Bank | Recurring basis | Level 3 | Long-term debt - of which structured notes over two years
Liabilities
Long-term debt	6,777		5,526
Bank | Recurring basis | Level 3 | Long-term debt - of which high-trigger instruments
Liabilities
Long-term debt	0		0
Bank | Recurring basis | Level 3 | Debt securities
Liabilities
Trading liabilities	0
Bank | Recurring basis | Level 3 | Debt securities | Debt securities issued by foreign governments
Liabilities
Trading liabilities	0
Bank | Recurring basis | Level 3 | Equity securities
Liabilities
Trading liabilities	41		55
Bank | Recurring basis | Level 3 | Derivative instruments
Liabilities
Trading liabilities	2,994		4,191
Bank | Recurring basis | Level 3 | Derivative instruments | Interest rate derivatives
Liabilities
Trading liabilities	142		169
Bank | Recurring basis | Level 3 | Derivative instruments | Foreign exchange derivatives
Liabilities
Trading liabilities	62		72
Bank | Recurring basis | Level 3 | Derivative instruments | Credit derivatives
Liabilities
Trading liabilities			1,335
Bank | Recurring basis | Level 3 | Derivative instruments | Equity/Index-related products
Liabilities
Trading liabilities	SFr 1,738		SFr 2,010

FI - Carrying value and fair va

FI - Carrying value and fair value not held at fair value (Details 16) - CHF (SFr) SFr in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	SFr 69,465	SFr 67,268	SFr 57,994
Available-for-sale Securities, Debt Securities	794	614	607
Loans	11,101	11,827	11,408
Other assets	10,342	15,033	8,373
Financial liabilities
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	10,983	9,591	13,594
Short-term borrowings	8,554	11,020	10,740
Long-term debt	69,436	72,312	70,976
Other liabilities	7,911	SFr 7,913	7,780
Carrying value of financial instruments not carried at fair value
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,179		21,139
Loans	285,192		277,137
Other assets	161,682		155,266
Financial liabilities
Due to banks and deposits	413,995		402,589
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	13,813		10,128
Long-term debt	100,790		90,111
Other liabilities	14,389		16,012
Estimate of fair value
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,180		21,139
Loans	293,806		287,194
Other assets	161,764		155,290
Financial liabilities
Due to banks and deposits	414,062		402,624
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	13,813		10,128
Long-term debt	103,835		93,214
Other liabilities	14,356		15,979
Estimate of fair value | Level 1
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Loans	0		0
Other assets	145,446		138,672
Financial liabilities
Due to banks and deposits	239,202		234,700
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Short-term borrowings	0		0
Long-term debt	0		0
Other liabilities	0		0
Estimate of fair value | Level 2
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,180		21,139
Loans	280,554		272,660
Other assets	16,030		16,315
Financial liabilities
Due to banks and deposits	174,860		167,924
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	13,813		10,128
Long-term debt	100,867		90,897
Other liabilities	13,950		15,567
Estimate of fair value | Level 3
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Loans	13,252		14,534
Other assets	288		303
Financial liabilities
Due to banks and deposits	0		0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Short-term borrowings	0		0
Long-term debt	2,968		2,317
Other liabilities	406		412
Bank
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	69,465		57,994
Available-for-sale Securities, Debt Securities	792		605
Loans	11,101		11,408
Other assets	10,342		8,373
Financial liabilities
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	11,080		13,688
Short-term borrowings	8,554		10,740
Long-term debt	68,486		70,243
Other liabilities	7,891		7,756
Bank | Carrying value of financial instruments not carried at fair value
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,179		21,139
Loans	293,508		285,570
Other assets	160,724		154,441
Financial liabilities
Due to banks and deposits	415,020		403,704
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	17,665		10,568
Long-term debt	95,807		90,035
Other liabilities	14,484		16,131
Bank | Estimate of fair value
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,180		21,139
Loans	302,123		295,631
Other assets	160,788		154,464
Financial liabilities
Due to banks and deposits	415,087		403,739
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	17,666		10,569
Long-term debt	98,795		93,033
Other liabilities	14,451		16,097
Bank | Estimate of fair value | Level 1
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Loans	0		0
Other assets	144,457		137,763
Financial liabilities
Due to banks and deposits	239,969		235,477
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Short-term borrowings	0		0
Long-term debt	0		0
Other liabilities	0		0
Bank | Estimate of fair value | Level 2
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	25,180		21,139
Loans	288,871		281,097
Other assets	16,058		16,399
Financial liabilities
Due to banks and deposits	175,118		168,262
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	9,941		10,256
Short-term borrowings	17,666		10,569
Long-term debt	95,840		90,716
Other liabilities	14,069		15,694
Bank | Estimate of fair value | Level 3
Financial assets
Central bank funds sold, securities purchased under resale agreements and securities borrowing transactions	0		0
Loans	13,252		14,534
Other assets	273		302
Financial liabilities
Due to banks and deposits	0		0
Central bank funds purchased, securities sold under repurchase agreements and securities lending transactions	0		0
Short-term borrowings	0		0
Long-term debt	2,955		2,317
Other liabilities	SFr 382		SFr 403

FI - Own credit gains_(losses)

FI - Own credit gains/(losses) on fair value option elected instruments (Details 17) - CHF (SFr) SFr in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Financial instruments
Gains/(losses) recorded into AOCI	SFr (516)	SFr (3,189)
Gains/(losses) recorded into AOCI, Cumulatively	(2,583)
Gains/(losses) recorded into AOCI transferred to net income	31	22
Due to banks and customer deposits
Financial instruments
Gains/(losses) recorded into AOCI	(1)	(15)
Gains/(losses) recorded into AOCI, Cumulatively	(64)
Gains/(losses) recorded into AOCI transferred to net income	0	0
Short-term borrowings
Financial instruments
Gains/(losses) recorded into AOCI	3	(24)
Gains/(losses) recorded into AOCI, Cumulatively	(55)
Gains/(losses) recorded into AOCI transferred to net income	0	0
Long-term debt
Financial instruments
Gains/(losses) recorded into AOCI	(518)	(3,150)
Gains/(losses) recorded into AOCI, Cumulatively	(2,464)
Gains/(losses) recorded into AOCI transferred to net income	31	22
Long-term debt - of which structured notes over two years
Financial instruments
Gains/(losses) recorded into AOCI	(9)	(1,253)
Gains/(losses) recorded into AOCI, Cumulatively	(1,252)
Gains/(losses) recorded into AOCI transferred to net income	31	22
Long-term debt - of which treasury debt over two years
Financial instruments
Gains/(losses) recorded into AOCI	(523)	(1,632)
Gains/(losses) recorded into AOCI, Cumulatively	(1,121)
Gains/(losses) recorded into AOCI transferred to net income	0	0
Bank
Financial instruments
Gains/(losses) recorded into AOCI	5	1,724
Gains/(losses) recorded into AOCI, Cumulatively	(2,516)
Gains/(losses) recorded into AOCI transferred to net income	77	99
Bank | Due to banks and customer deposits
Financial instruments
Gains/(losses) recorded into AOCI	13	23
Gains/(losses) recorded into AOCI, Cumulatively	(64)
Gains/(losses) recorded into AOCI transferred to net income	0	0
Bank | Short-term borrowings
Financial instruments
Gains/(losses) recorded into AOCI	13	(22)
Gains/(losses) recorded into AOCI, Cumulatively	(55)
Gains/(losses) recorded into AOCI transferred to net income	0	0
Bank | Long-term debt
Financial instruments
Gains/(losses) recorded into AOCI	(21)	1,723
Gains/(losses) recorded into AOCI, Cumulatively	(2,397)
Gains/(losses) recorded into AOCI transferred to net income	77	99
Bank | Long-term debt - of which structured notes over two years
Financial instruments
Gains/(losses) recorded into AOCI	269	300
Gains/(losses) recorded into AOCI, Cumulatively	(1,262)
Gains/(losses) recorded into AOCI transferred to net income	77	99
Bank | Long-term debt - of which treasury debt over two years
Financial instruments
Gains/(losses) recorded into AOCI	(321)	1,306
Gains/(losses) recorded into AOCI, Cumulatively	(1,044)
Gains/(losses) recorded into AOCI transferred to net income	SFr 0	SFr 0

Assets pledged and collateral_2

Assets pledged and collateral (Details) - CHF (SFr) SFr in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021	Dec. 31, 2020
Assets pledged and collateral
Total assets pledged or assigned as collateral	SFr 144,355	SFr 116,523	SFr 144,355
of which encumbered	82,950	55,154	82,950
Fair value of collateral received with the right to sell or repledge	385,515	370,803	385,515
of which sold or repledged	158,567	135,894
Bank
Assets pledged and collateral
Total assets pledged or assigned as collateral	144,355	116,523	144,355
of which encumbered	82,950	55,154	82,950
Fair value of collateral received with the right to sell or repledge	SFr 385,515	370,803	385,515
of which sold or repledged		SFr 135,894	SFr 158,567

Litigation (Details)

Litigation (Details) € in Millions, SFr in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2021CHF (SFr)	Jun. 30, 2021USD ($)	Jun. 30, 2021EUR (€)
Pending Litigation
Litigation disclosures
Net litigation provisions recorded | SFr	SFr 265
Pending Litigation | Minimum
Litigation provisions
Range of possible losses that are not covered by existing provisions | SFr	0
Pending Litigation | Maximum
Litigation provisions
Range of possible losses that are not covered by existing provisions | SFr	SFr 1,200
Rates Related Matters - regulatory matters | European Commission | EU General Court
Litigation disclosures
Fines, judgments and settlements paid | €			€ 11.9
Credit Suisse Securities (USA) LLC | Mortgage-related matters - Government and regulatory related | United States Department of Justice (DOJ)
Litigation disclosures
Litigation, Increase of Consumer Relief per Annum	5.00%	5.00%	5.00%
Credit Suisse Securities (USA) LLC | Bank loan litigation | Highland Capital Management LP | Texas supreme court
Litigation disclosures
Litigation Settlement, Amount Awarded to Other Party		$ 121
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Mortgage Trust Series 2006-5 | Supreme Court for the State of New York, New York County (SCNY) | Minimum
Litigation disclosures
Estimated damages		500
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Mortgage Trust Series 2006-1, 2006-3 and 2006-4 | Supreme Court for the State of New York, New York County (SCNY) | Minimum
Litigation disclosures
Estimated damages		730
DLJ Mortgage Capital, Inc. | Mortgage-related matters - Repurchase litigations | Home Equity Asset Trust Series 2007-1 | Supreme Court for the State of New York, New York County (SCNY) | Minimum
Litigation disclosures
Estimated damages		$ 420