XML 125 R88.htm IDEA: XBRL DOCUMENT
v3.22.1

Derivatives - Summary of Derivative Contracts Maturity (Detail) - BRL (R$) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount |  | R$ 17,778,000,000
Futures [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | R$ 857,781,000,000 | 781,453,000,000
Swap [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 1,338,457,000,000 | 1,442,449,000,000
Option contract [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 1,621,736,000,000 | 1,738,849,000,000
Forward [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 26,129,000,000 | 23,989,000,000
Credit derivatives [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 21,556,000,000 | 20,060,000,000
NDF [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 278,531,000,000 | 313,463,000,000
Other derivative financial instruments [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 6,064,000,000 | 6,413,000,000
0-30 days [Member] | Futures [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 370,243,000,000 | 305,076,000,000
0-30 days [Member] | Swap [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 131,681,000,000 | 272,932,000,000
0-30 days [Member] | Option contract [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 1,230,470,000,000 | 1,012,965,000,000
0-30 days [Member] | Forward [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 3,173,000,000 | 19,013,000,000
0-30 days [Member] | NDF [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 77,962,000,000 | 131,205,000,000
0-30 days [Member] | Other derivative financial instruments [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 199,000,000 | 15,000,000
31-180 days [Member] | Futures [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 248,922,000,000 | 242,842,000,000
31-180 days [Member] | Swap [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 155,022,000,000 | 123,360,000,000
31-180 days [Member] | Option contract [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 268,254,000,000 | 216,425,000,000
31-180 days [Member] | Forward [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 13,402,000,000 | 3,999,000,000
31-180 days [Member] | Credit derivatives [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 6,602,000,000 | 8,515,000,000
31-180 days [Member] | NDF [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 113,359,000,000 | 124,470,000,000
31-180 days [Member] | Other derivative financial instruments [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 739,000,000 | 709,000,000
181-365 days [Member] | Futures [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 74,456,000,000 | 108,338,000,000
181-365 days [Member] | Swap [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 121,040,000,000 | 118,617,000,000
181-365 days [Member] | Option contract [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 45,731,000,000 | 250,966,000,000
181-365 days [Member] | Forward [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 9,551,000,000 | 972,000,000
181-365 days [Member] | Credit derivatives [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 826,000,000 | 804,000,000
181-365 days [Member] | NDF [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 48,091,000,000 | 38,006,000,000
181-365 days [Member] | Other derivative financial instruments [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 624,000,000 | 279,000,000
Non-current [Member] | Futures [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 164,160,000,000 | 125,197,000,000
Non-current [Member] | Swap [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 930,714,000,000 | 927,540,000,000
Non-current [Member] | Option contract [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 77,281,000,000 | 258,493,000,000
Non-current [Member] | Forward [member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 3,000,000 | 5,000,000
Non-current [Member] | Credit derivatives [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 14,128,000,000 | 10,741,000,000
Non-current [Member] | NDF [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | 39,119,000,000 | 19,782,000,000
Non-current [Member] | Other derivative financial instruments [Member] |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Off-balance sheet - notional amount | R$ 4,502,000,000 | R$ 5,410,000,000

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_FuturesContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_SwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_OptionContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_ForwardContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=itub_CreditDerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=itub_NDFNonDeliverableForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=itub_OtherDerivativeFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneMonthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneMonthAndNotLaterThanSixMonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |