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TFA - Transfer of certain financial assets accounted for as secured borrowings (Details 6) - CHF (SFr) SFr in Millions | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | SFr 35,100 |  | SFr 36,200
Securities lending transactions | 800 |  | 15,700
Obligation to return securities received as collateral, at fair value | 7,386 | SFr 8,084 | 15,017
Total | 43,300 |  | 66,900
Corporate debt securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 9,700 |  | 9,600
Securities lending transactions | 200 |  | 300
Obligation to return securities received as collateral, at fair value | 800 |  | 600
Asset-backed securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 2,300 |  | 4,600
Securities lending transactions | 0 |  | 300
Obligation to return securities received as collateral, at fair value | 100 |  | 0
Equity securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 300 |  | 500
Securities lending transactions | 200 |  | 1,000
Obligation to return securities received as collateral, at fair value | 2,800 |  | 10,800
Other |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 3,600 |  | 5,600
Securities lending transactions | 200 |  | 200
Government debt securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 19,200 |  | 15,900
Securities lending transactions | 200 |  | 13,900
Obligation to return securities received as collateral, at fair value | 3,700 |  | 3,600
No stated maturity [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 6,000 |  | 5,200
Securities lending transactions | 700 |  | 2,300
Obligation to return securities received as collateral, at fair value | 7,400 |  | 15,000
Total | 14,100 |  | 22,500
Maturity Less than 30 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 18,900 |  | 15,700
Securities lending transactions | 0 |  | 1,700
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | 18,900 |  | 17,400
Maturity 30 to 90 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 3,300 |  | 6,000
Securities lending transactions | 0 |  | 1,600
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | 3,300 |  | 7,600
Maturity Greater than 90 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 6,900 |  | 9,300
Securities lending transactions | 100 |  | 10,100
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | 7,000 |  | 19,400
Bank |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 35,200 |  | 36,300
Securities lending transactions | 800 |  | 15,700
Obligation to return securities received as collateral, at fair value | 7,386 |  | 15,017
Total | 43,400 |  | 67,000
Bank | Corporate debt securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 9,700 |  | 9,600
Securities lending transactions | 200 |  | 300
Obligation to return securities received as collateral, at fair value | 800 |  | 600
Bank | Asset-backed securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 2,300 |  | 4,600
Securities lending transactions | 0 |  | 300
Obligation to return securities received as collateral, at fair value | 100 |  | 0
Bank | Equity securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 300 |  | 500
Securities lending transactions | 200 |  | 1,000
Obligation to return securities received as collateral, at fair value | 2,800 |  | 10,800
Bank | Other |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 3,600 |  | 5,600
Securities lending transactions | 200 |  | 200
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Bank | Government debt securities |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 19,300 |  | 16,000
Securities lending transactions | 200 |  | 13,900
Obligation to return securities received as collateral, at fair value | 3,700 |  | 3,600
Bank | No stated maturity [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 6,000 |  | 5,300
Securities lending transactions | 700 |  | 2,300
Obligation to return securities received as collateral, at fair value | 7,400 |  | 15,000
Total | 14,100 |  | 22,600
Bank | Maturity Less than 30 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 19,000 |  | 15,800
Securities lending transactions | 0 |  | 1,700
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | 19,000 |  | 17,500
Bank | Maturity 30 to 90 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 3,300 |  | 6,000
Securities lending transactions | 0 |  | 1,600
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | 3,300 |  | 7,600
Bank | Maturity Greater than 90 Days [Member] |  |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |  |
Securities sold under repurchase agreements | 6,900 |  | 9,200
Securities lending transactions | 100 |  | 10,100
Obligation to return securities received as collateral, at fair value | 0 |  | 0
Total | SFr 7,000 |  | SFr 19,300

X
- Definition Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial asset at a date certain for a specified price. Includes repurchase-to-maturity transactions and liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 + Details
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- Definition The fair value of collateral received by the entity associated with securities borrowed that must be returned if the counterparty fulfills its obligations. It appears on the balance sheet as a liability and has a corresponding asset that appears on the balance sheet called Securities Received as Collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral and funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial assets at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 + Details
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- Definition Amount, before effects of master netting arrangements, of financial assets loaned to entities in exchange for collateral. Includes liabilities not subject to a master netting arrangement and financial assets transferred other than securities that qualify as secured borrowings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 + Details
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