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Risk and Capital Management - Summary of Position of Accounts Subject to Interest Rate Risk (Detail) - BRL (R$) R$ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | R$ 1,915,573 | R$ 1,851,322
Central Bank compulsory deposits | 104,592 | 90,059
Interbank deposits | 69,942 | 55,685
Securities purchased under agreements to resell | 169,718 | 239,943
Loan and lease operations | 822,590 | 714,104
Derivatives | 69,045 | 76,504
Other financial assets | 96,473 | 93,255
At Fair Value Through Other Comprehensive Income | 105,622 | 109,942
Financial liabilities | 1,621,786 | 1,579,686
Deposits | 850,372 | 809,010
Securities sold under repurchase agreements | 252,848 | 273,364
Interbank market debts | 177,145 | 156,035
Derivatives | 63,204 | 79,505
Structured notes | (114) | (143)
Other financial liabilities | 134,267 | 118,929
Amortized cost | 1,375,782 | 1,275,799
At Fair Value Through Profit or Loss | 434,169 | 465,581
At Fair Value Through Profit or Loss | 63,479 | 79,653
Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Other financial liabilities | 134,106 | 118,924
Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Other financial liabilities | 161 | 5
Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 1,846,204 | 1,795,071
Central Bank compulsory deposits | 92,580 | 83,133
At Fair Value Through Other Comprehensive Income | 105,622 | 109,942
Financial liabilities | 1,485,727 | 1,459,835
Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | 850,372 | 809,010
Securities sold under repurchase agreements | 252,848 | 273,364
Interbank market debts | 177,145 | 156,035
Institutional market debts | 138,636 | 138,308
Premium bonds plans | 3,247 | 3,465
Amortized cost | 1,422,248 | 1,380,182
Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 63,204 | 79,505
Structured notes | 114 | 143
Other financial liabilities | 161 | 5
Difference asset/ liability (2) | 360,477 | 335,236
At Fair Value Through Profit or Loss | 63,479 | 79,653
Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 69,934 | 55,637
Securities purchased under agreements to resell | 169,711 | 239,935
Securities | 145,798 | 126,739
Loan and lease operations | 822,590 | 714,104
Amortized cost | 1,306,413 | 1,219,548
Voluntary investments with the Central Bank of BrazilSecurities | 5,800 | 0
Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 364,967 | 389,071
Derivatives | 69,045 | 76,504
Other financial assets | 157 | 6
At Fair Value Through Profit or Loss | 434,169 | 465,581
0-30 days [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 15,492 | 17,634
Derivatives | 7,153 | 16,791
0-30 days [Member] | Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 463,079 | 478,065
Central Bank compulsory deposits | 92,580 | 83,133
At Fair Value Through Other Comprehensive Income | 10,420 | 13,357
Financial liabilities | 660,751 | 624,542
Cumulative difference | R$ (197,672) | R$ (146,477)
Ratio of cumulative difference to total interest-bearing assets | (10.70%) | (8.20%)
0-30 days [Member] | Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | R$ 402,930 | R$ 370,604
Securities sold under repurchase agreements | 239,843 | 220,219
Interbank market debts | 9,976 | 9,542
Institutional market debts | 439 | 6,950
Premium bonds plans | 410 | 426
Amortized cost | 653,598 | 607,741
0-30 days [Member] | Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 7,153 | 16,791
Structured notes | 0 | 10
Other financial liabilities | 0 | 0
Difference asset/ liability (2) | (197,672) | (146,477)
At Fair Value Through Profit or Loss | 7,153 | 16,801
0-30 days [Member] | Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 51,138 | 34,998
Securities purchased under agreements to resell | 142,405 | 196,053
Securities | 4,427 | 9,325
Loan and lease operations | 104,706 | 82,988
Amortized cost | 401,056 | 406,497
Voluntary investments with the Central Bank of BrazilSecurities | 5,800 | 0
0-30 days [Member] | Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 36,111 | 40,577
Derivatives | 15,492 | 17,634
Other financial assets | 0 | 0
At Fair Value Through Profit or Loss | 51,603 | 58,211
31-180 days [Member] | Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 294,051 | 335,803
Central Bank compulsory deposits | 0 | 0
At Fair Value Through Other Comprehensive Income | 9,286 | 12,557
Financial liabilities | 127,205 | 141,647
Cumulative difference | R$ (30,826) | R$ 47,679
Ratio of cumulative difference to total interest-bearing assets | (1.70%) | 2.70%
31-180 days [Member] | Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | R$ 52,259 | R$ 80,456
Securities sold under repurchase agreements | 2,627 | 3,001
Interbank market debts | 46,610 | 48,407
Institutional market debts | 9,045 | 2,247
Premium bonds plans | 453 | 529
Amortized cost | 110,994 | 134,640
31-180 days [Member] | Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 16,174 | 7,002
Structured notes | 0 | 0
Other financial liabilities | 37 | 5
Difference asset/ liability (2) | 166,846 | 194,156
At Fair Value Through Profit or Loss | 16,211 | 7,007
31-180 days [Member] | Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 7,050 | 5,410
Securities purchased under agreements to resell | 26,532 | 43,625
Securities | 12,884 | 16,907
Loan and lease operations | 212,114 | 185,446
Amortized cost | 258,580 | 251,388
Voluntary investments with the Central Bank of BrazilSecurities | 0 | 0
31-180 days [Member] | Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 13,872 | 63,455
Derivatives | 12,292 | 8,403
Other financial assets | 21 | 0
At Fair Value Through Profit or Loss | 26,185 | 71,858
181-365 days [Member] | Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 193,279 | 185,587
Central Bank compulsory deposits | 0 | 0
At Fair Value Through Other Comprehensive Income | 6,722 | 6,958
Financial liabilities | 107,515 | 122,233
Cumulative difference | R$ 54,938 | R$ 111,033
Ratio of cumulative difference to total interest-bearing assets | 3.00% | 6.20%
181-365 days [Member] | Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | R$ 38,563 | R$ 59,955
Securities sold under repurchase agreements | 725 | 1,962
Interbank market debts | 41,520 | 36,972
Institutional market debts | 18,422 | 10,142
Premium bonds plans | 523 | 529
Amortized cost | 99,753 | 109,560
181-365 days [Member] | Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 7,625 | 12,672
Structured notes | 16 | 1
Other financial liabilities | 121 | 0
Difference asset/ liability (2) | 85,764 | 63,354
At Fair Value Through Profit or Loss | 7,762 | 12,673
181-365 days [Member] | Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 5,861 | 8,178
Securities purchased under agreements to resell | 0 | 170
Securities | 27,858 | 11,440
Loan and lease operations | 118,551 | 101,644
Amortized cost | 152,270 | 121,432
Voluntary investments with the Central Bank of BrazilSecurities | 0 | 0
181-365 days [Member] | Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 28,532 | 48,092
Derivatives | 5,632 | 9,099
Other financial assets | 123 | 6
At Fair Value Through Profit or Loss | 34,287 | 57,197
From one to five years [member] | Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 642,495 | 568,219
Central Bank compulsory deposits | 0 | 0
At Fair Value Through Other Comprehensive Income | 63,256 | 54,452
Financial liabilities | 361,399 | 452,797
Cumulative difference | R$ 336,034 | R$ 226,455
Ratio of cumulative difference to total interest-bearing assets | 18.20% | 12.60%
From one to five years [member] | Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | R$ 220,822 | R$ 277,055
Securities sold under repurchase agreements | 5,659 | 23,811
Interbank market debts | 69,043 | 56,482
Institutional market debts | 43,559 | 67,159
Premium bonds plans | 1,861 | 1,981
Amortized cost | 340,944 | 426,488
From one to five years [member] | Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 20,404 | 26,252
Structured notes | 48 | 57
Other financial liabilities | 3 | 0
Difference asset/ liability (2) | 281,096 | 115,422
At Fair Value Through Profit or Loss | 20,455 | 26,309
From one to five years [member] | Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 5,669 | 6,864
Securities purchased under agreements to resell | 403 | 10
Securities | 69,965 | 55,070
Loan and lease operations | 269,501 | 253,005
Amortized cost | 345,538 | 314,949
Voluntary investments with the Central Bank of BrazilSecurities | 0 | 0
From one to five years [member] | Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 212,911 | 178,565
Derivatives | 20,777 | 20,253
Other financial assets | 13 | 0
At Fair Value Through Profit or Loss | 233,701 | 198,818
Over 5 years [member] | Interest rate risk [Member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Financial assets | 253,300 | 227,397
Central Bank compulsory deposits | 0 | 0
At Fair Value Through Other Comprehensive Income | 15,938 | 22,618
Financial liabilities | 228,857 | 118,616
Cumulative difference | R$ 360,477 | R$ 335,236
Ratio of cumulative difference to total interest-bearing assets | 19.50% | 18.70%
Over 5 years [member] | Interest rate risk [Member] | Financial liabilities at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Deposits | R$ 135,798 | R$ 20,940
Securities sold under repurchase agreements | 3,994 | 24,371
Interbank market debts | 9,996 | 4,632
Institutional market debts | 67,171 | 51,810
Premium bonds plans | 0 | 0
Amortized cost | 216,959 | 101,753
Over 5 years [member] | Interest rate risk [Member] | Financial liabilities at fair value through profit or loss, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Derivatives | 11,848 | 16,788
Structured notes | 50 | 75
Other financial liabilities | 0 | 0
Difference asset/ liability (2) | 24,443 | 108,781
At Fair Value Through Profit or Loss | 11,898 | 16,863
Over 5 years [member] | Interest rate risk [Member] | Financial assets at amortised cost, category [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Interbank deposits | 216 | 187
Securities purchased under agreements to resell | 371 | 77
Securities | 30,664 | 33,997
Loan and lease operations | 117,718 | 91,021
Amortized cost | 148,969 | 125,282
Voluntary investments with the Central Bank of BrazilSecurities | 0 | 0
Over 5 years [member] | Interest rate risk [Member] | Financial assets designated at fair value through profit or loss [member] |  |
Disclosure of position of accounts subject to interest rate risk [Line Items] |  |
Securities | 73,541 | 58,382
Derivatives | 14,852 | 21,115
Other financial assets | 0 | 0
At Fair Value Through Profit or Loss | R$ 88,393 | R$ 79,497

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35H&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35I&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35M&doctype=Standard -URIDate 2021-03-24 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35N&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_8_a&doctype=Standard -URIDate 2021-03-24 + Details
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