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Financial assets at fair value through profit or loss and designated at fair value through profit or loss - Securities (Details) - BRL (R$) R$ in Millions | 12 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | R$ 36,357 | R$ 23,928 | R$ 36,357
Government Securities [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 23,639 | 12,570 | 23,639
Corporate Securities [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 12,718 | 11,358 | 12,718
Financial assets at fair value through profit or loss, classified as held for trading, category [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 389,514 | 365,586 | 389,514
Accumulated gain / (loss) reflected in income | (5,975) |  | (3,663)
Fair value | 383,539 | 361,923 | 383,539
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 60,262 | 66,271 | 60,262
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Brazilian government securities [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 230,924 | 223,529 | 230,924
Accumulated gain / (loss) reflected in income | (572) | (1,774) |
Fair value | 230,352 | 221,755 | 230,352
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 45,746 | 50,116 | 45,746
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 8,007 | 5,581 | 8,007
Accumulated gain / (loss) reflected in income | 10 | (20) |
Fair value | 8,017 | 5,561 | 8,017
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 317 | 171 | 317
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Argentina [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 669 | 901 | 669
Accumulated gain / (loss) reflected in income | 4 | 29 |
Fair value | 673 | 930 | 673
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Chile [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 1,648 | 839 | 1,648
Accumulated gain / (loss) reflected in income | (1) | (2) |
Fair value | 1,647 | 837 | 1,647
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Colombia [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 844 | 1,071 | 844
Accumulated gain / (loss) reflected in income | 6 | (12) |
Fair value | 850 | 1,059 | 850
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | United States [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 612 | 2,706 | 612
Accumulated gain / (loss) reflected in income | (2) | (35) |
Fair value | 610 | 2,671 | 610
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Israel [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 852 |  | 852
Accumulated gain / (loss) reflected in income | 8 |  |
Fair value | 860 |  | 860
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Mexico [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 15 | 19 | 15
Accumulated gain / (loss) reflected in income | (2) |  |
Fair value | 13 | 19 | 13
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Paraguay [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 40 | 10 | 40
Fair value | 40 | 10 | 40
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Peru [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 7 | 8 | 7
Accumulated gain / (loss) reflected in income | (1) |  |
Fair value | 6 | 8 | 6
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Switzerland [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 3,059 |  | 3,059
Accumulated gain / (loss) reflected in income | (1) |  |
Fair value | 3,058 |  | 3,058
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Uruguay [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 261 | 27 | 261
Accumulated gain / (loss) reflected in income | (1) |  |
Fair value | 260 | 27 | 260
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Government Securities [member] | Other Countries [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Fair value |  | 1,261 |
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 117,572 | 116,346 | 117,572
Accumulated gain / (loss) reflected in income | (4,893) | (1,878) |
Fair value | 112,679 | 114,468 | 112,679
Securities pledged as Guarantee of Funding of Financial Institutions and Clients | 14,199 | 15,984 | 14,199
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Negotiable shares [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 16,931 | 20,293 | 16,931
Accumulated gain / (loss) reflected in income | (1,394) | (936) |
Fair value | 15,537 | 19,357 | 15,537
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Rural Product Note [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 2,484 | 6,752 | 2,484
Accumulated gain / (loss) reflected in income | 33 | 100 |
Fair value | 2,517 | 6,852 | 2,517
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Bank Deposit Certificates [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 360 | 150 | 360
Fair value | 360 | 150 | 360
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Real Estate Receivables Certificates [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 1,580 | 1,075 | 1,580
Accumulated gain / (loss) reflected in income | (100) | (63) |
Fair value | 1,480 | 1,012 | 1,480
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Debentures [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 66,223 | 66,730 | 66,223
Accumulated gain / (loss) reflected in income | (3,281) | (942) |
Fair value | 62,942 | 65,788 | 62,942
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Eurobonds and others [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 4,499 | 5,293 | 4,499
Accumulated gain / (loss) reflected in income | (126) | (40) |
Fair value | 4,373 | 5,253 | 4,373
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Financial bills [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 19,409 | 10,128 | 19,409
Accumulated gain / (loss) reflected in income | (31) | (17) |
Fair value | 19,378 | 10,111 | 19,378
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Promissory Notes [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 3,888 | 4,655 | 3,888
Accumulated gain / (loss) reflected in income | 12 | 29 |
Fair value | 3,900 | 4,684 | 3,900
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Corporate Securities [Member] | Other [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 2,198 |  | 2,198
Accumulated gain / (loss) reflected in income | (6) | (9) |
Fair value | 2,192 |  | 2,192
Financial assets at fair value through profit or loss, classified as held for trading, category [member] | Investment funds [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Cost | 33,011 | 20,130 | 33,011
Accumulated gain / (loss) reflected in income | (520) | 9 |
Fair value | R$ 32,491 | R$ 20,139 | R$ 32,491

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- Definition The amount of financial assets at fair value through profit or loss classified as held for trading. A financial asset is classified as held for trading if: (a) it is acquired principally for the purpose of selling it in the near term; (b) on initial recognition it is part of a portfolio of identified financial instruments that are managed together and for which there is evidence of a recent actual pattern of short-term profit-taking; or (c) it is a derivative (except for a derivative that is a financial guarantee contract or a designated and effective hedging instrument). [Refer: At fair value [member]; Financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_a&doctype=Standard&book=b -URIDate 2022-03-24 + Details
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- Definition The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Contingent liabilities [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 14 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_14_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The gains (losses) on financial assets at fair value through profit or loss classified as held for trading. [Refer: Financial assets at fair value through profit or loss, classified as held for trading; Gains (losses) on financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_a_i&doctype=Standard&book=b -URIDate 2022-03-24 + Details
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