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Goodwill and Intangible assets (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Beginning balance | R$ 23,364 | R$ 23,114
Ending balance | 23,997 | 23,364
Book value | 23,997 | 23,364
Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 46,838 | 43,942
Acquisitions | 5,535 | 5,376
Termination / disposals | (872) | (988)
Exchange variation | 1,612 | (915)
Amortization other | 3 | (577)
Ending balance | 53,116 | 46,838
Accumulated depreciation and amortisation [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (17,143) | (14,393)
Termination / disposals | 602 | 854
Exchange variation | (442) | 132
Amortization other | 17 | 353
Ending balance | (21,822) | (17,143)
Amortization expense | (4,856) | (4,089)
Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (6,331) | (6,435)
Exchange variation | (629) | 372
Ending balance | (7,297) | (6,331)
Increase | R$ (337) | R$ (268)
Promotion And Offer Of Financial Products And Service [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual amortization rates | 8.00% | 8.00%
Book value | R$ 259 | R$ 337
Promotion And Offer Of Financial Products And Service [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 2,227 | 2,366
Termination / disposals | (7) | (246)
Exchange variation | 162 | 133
Amortization other | (16) | (26)
Ending balance | 2,366 | 2,227
Promotion And Offer Of Financial Products And Service [Member] | Accumulated depreciation and amortisation [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (1,242) | (1,357)
Termination / disposals | 6 | 227
Exchange variation | (76) | (49)
Amortization other | 16 | 24
Ending balance | (1,378) | (1,242)
Amortization expense | (82) | (87)
Promotion And Offer Of Financial Products And Service [Member] | Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (648) | (559)
Exchange variation | (81) | (89)
Ending balance | R$ (729) | R$ (648)
Software Acquisition [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual amortization rates | 20.00% | 20.00%
Book value | R$ 1,377 | R$ 1,290
Software Acquisition [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 5,177 | 5,423
Acquisitions | 412 | 452
Termination / disposals | (5) | (100)
Exchange variation | 263 | (56)
Amortization other | 22 | (542)
Ending balance | 5,869 | 5,177
Software Acquisition [Member] | Accumulated depreciation and amortisation [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (3,713) | (3,737)
Termination / disposals | 4 | 58
Exchange variation | (162) | 18
Amortization other | 1 | 379
Ending balance | (4,318) | (3,713)
Amortization expense | (448) | (431)
Software Acquisition [Member] | Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (174) | (171)
Ending balance | R$ (174) | (174)
Increase |  | R$ (3)
Intangible assets under development [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual amortization rates | 20.00% | 20.00%
Book value | R$ 10,685 | R$ 10,066
Intangible assets under development [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 19,577 | 16,088
Acquisitions | 4,125 | 3,634
Termination / disposals | (269) | (43)
Exchange variation | 138 | (95)
Amortization other | (3) | (7)
Ending balance | 23,568 | 19,577
Intangible assets under development [member] | Accumulated depreciation and amortisation [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (8,422) | (6,133)
Termination / disposals | 1 |
Exchange variation | (88) | 56
Amortization other |  | (50)
Ending balance | (11,557) | (8,422)
Amortization expense | (3,048) | (2,295)
Intangible assets under development [member] | Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (1,089) | (824)
Ending balance | (1,326) | (1,089)
Increase | (237) | (265)
Other intangible assets [member] |  |
IfrsStatementLineItems [Line Items] |  |
Book value | 3,327 | 3,836
Other intangible assets [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 7,602 | 7,634
Acquisitions | 863 | 687
Termination / disposals | (591) | (599)
Exchange variation | 122 | (120)
Ending balance | 7,996 | 7,602
Other intangible assets [member] | Accumulated depreciation and amortisation [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (3,766) | (3,166)
Termination / disposals | 591 | 569
Exchange variation | (116) | 107
Ending balance | (4,569) | (3,766)
Amortization expense | (1,278) | (1,276)
Other intangible assets [member] | Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance |  |
Ending balance | (100) |
Increase | R$ (100) |
Other intangible assets [member] | Bottom of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual amortization rates | 10.00% | 10.00%
Other intangible assets [member] | Top of range [member] |  |
IfrsStatementLineItems [Line Items] |  |
Annual amortization rates | 20.00% | 20.00%
Goodwill And Intangible Assets From Acquisition [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Book value | R$ 8,349 | R$ 7,835
Goodwill And Intangible Assets From Acquisition [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | 12,255 | 12,431
Acquisitions | 135 | 603
Exchange variation | 927 | (777)
Amortization other |  | (2)
Ending balance | 13,317 | 12,255
Goodwill And Intangible Assets From Acquisition [Member] | Accumulated impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Beginning balance | (4,420) | (4,881)
Exchange variation | (548) | 461
Ending balance | R$ (4,968) | R$ (4,420)

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- Definition The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Total for all business combinations [member]; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in profit or loss for intangible assets and goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_iv&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_viii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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