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Loans and advances to customers (Details - Analysis of the change in the gross value of loans and advances to customers by stage) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]
Opening Balance	R$ 19,515,659
Ending balance	33,406,040	R$ 19,515,659
Business loans
Disclosure of detailed information about financial instruments [line items]
Ending balance	3,017,158
Real Estate loans
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,471,354
Ending balance	5,121,411	3,471,354
Loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	8,790,058
Ending balance	17,216,362	8,790,058
Loans and advances to customers | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	8,790,057	4,777,388
Payments	(3,393,175)	(1,641,849)
Write-off for loss	67,616	153,197
New loans and interest accrued	11,887,095	5,807,715
Ending balance	17,216,362	8,790,057
Loans and advances to customers | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	8,291,501	4,226,785
Transfer to Stage 2	(191,523)	(108,816)
Transfer to Stage 3	(217,614)	(114,141)
Transfer from Stage 2	64,894	121,336
Transfer from Stage 3	11,852	29,484
Payments	(3,138,182)	(1,500,646)
Write-off for loss	10,675	19,475
New loans and interest accrued	11,346,469	5,656,973
Ending balance	16,156,722	8,291,501
Loans and advances to customers | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	239,098	330,572
Transfer to Stage 1	(64,894)	(121,336)
Transfer to Stage 3	(26,716)	(30,382)
Transfer from Stage 1	191,523	108,816
Transfer from Stage 3	8,622	7,873
Payments	(84,042)	(78,083)
Write-off for loss	7,820	30,354
New loans and interest accrued	150,639	51,992
Ending balance	406,410	239,098
Loans and advances to customers | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	259,459	220,030
Transfer to Stage 1	(11,852)	(29,484)
Transfer to Stage 2	(8,622)	(7,873)
Transfer from Stage 1	217,614	114,141
Transfer from Stage 2	26,716	30,382
Payments	(170,951)	(63,120)
Write-off for loss	49,121	103,368
New loans and interest accrued	389,987	98,750
Ending balance	653,230	259,459
Loans and advances to customers | Payroll Card
Disclosure of detailed information about financial instruments [line items]
Opening Balance	67,732
Ending balance	65,263	67,732
Loans and advances to customers | Payroll Card | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	67,732	80,410
Payments	(8,738)	(6,957)
Write-off for loss	3,795	3,103
New loans and interest accrued	10,066	2,616
Ending balance	65,265	67,732
Loans and advances to customers | Payroll Card | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	64,113	77,089
Transfer to Stage 2	(5,129)	(444)
Transfer to Stage 3	(3,113)	(2,433)
Transfer from Stage 2	10	40
Transfer from Stage 3	16	10
Payments	(8,601)	(6,590)
Write-off for loss	348	212
New loans and interest accrued	8,807	3,347
Ending balance	55,755	64,113
Loans and advances to customers | Payroll Card | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	457	821
Transfer to Stage 1	(10)	(40)
Transfer to Stage 3		(5)
Transfer from Stage 1	5,129	444
Transfer from Stage 3		1
Payments	(39)	(96)
Write-off for loss	407	680
New loans and interest accrued	640	13
Ending balance	5,770	457
Loans and advances to customers | Payroll Card | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,162	2,499
Transfer to Stage 1	(16)	(10)
Transfer to Stage 2		(1)
Transfer from Stage 1	3,113	2,433
Transfer from Stage 2		5
Payments	(98)	(271)
Write-off for loss	3,040	2,211
New loans and interest accrued	619	717
Ending balance	3,740	3,162
Loans and advances to customers | Credit Card
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,904,643
Ending balance	4,798,318	1,904,643
Loans and advances to customers | Credit Card | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,904,640
Payments	(515,975)
Write-off for loss	6,187
New loans and interest accrued	3,415,838
Ending balance	4,798,316	1,904,640
Loans and advances to customers | Credit Card | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,773,870
Transfer to Stage 2	(19,334)
Transfer to Stage 3	(76,206)
Transfer from Stage 2	831
Transfer from Stage 3	416
Payments	(390,827)
Write-off for loss	2,307
New loans and interest accrued	3,049,423
Ending balance	4,335,866	1,773,870
Loans and advances to customers | Credit Card | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	20,002
Transfer to Stage 1	(831)
Transfer to Stage 3	(287)
Transfer from Stage 1	19,334
Transfer from Stage 3	20
Payments	(17,735)
Write-off for loss	1,102
New loans and interest accrued	71,246
Ending balance	90,647	20,002
Loans and advances to customers | Credit Card | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	110,768
Transfer to Stage 1	(416)
Transfer to Stage 2	(20)
Transfer from Stage 1	76,206
Transfer from Stage 2	287
Payments	(107,413)
Write-off for loss	2,778
New loans and interest accrued	295,169
Ending balance	371,803	110,768
Loans and advances to customers | Multiple Card
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,904,642
Ending balance	4,798,318	1,904,642
Loans and advances to customers | Multiple Card | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,904,642	783,544
Payments		(181,685)
Write-off for loss		75,218
New loans and interest accrued		1,378,001
Ending balance		1,904,642
Loans and advances to customers | Multiple Card | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,773,870	683,629
Transfer to Stage 2		(4,201)
Transfer to Stage 3		(42,212)
Transfer from Stage 2		5,113
Transfer from Stage 3		8,508
Payments		(162,026)
Write-off for loss		9,234
New loans and interest accrued		1,294,294
Ending balance		1,773,870
Loans and advances to customers | Multiple Card | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	20,002	26,814
Transfer to Stage 1		(5,113)
Transfer to Stage 3		(623)
Transfer from Stage 1		4,201
Payments		(5,949)
Write-off for loss		15,108
New loans and interest accrued		15,781
Ending balance		20,002
Loans and advances to customers | Multiple Card | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	110,768	73,101
Transfer to Stage 1		(8,508)
Transfer from Stage 1		42,212
Transfer from Stage 2		623
Payments		(13,709)
Write-off for loss		50,878
New loans and interest accrued		67,927
Ending balance		110,768
Loans and advances to customers | Overdraft protection agreement
Disclosure of detailed information about financial instruments [line items]
Opening Balance	20,193
Ending balance	12,862	20,193
Loans and advances to customers | Overdraft protection agreement | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	20,193	2,451
Payments	(8,942)
Write-off for loss	4,695
New loans and interest accrued	6,375	17,742
Ending balance	12,931	20,193
Loans and advances to customers | Overdraft protection agreement | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	20,193	1,434
Transfer to Stage 2	(406)
Transfer to Stage 3	(5,580)
Transfer from Stage 2		816
Transfer from Stage 3		200
Payments	(8,942)
Write-off for loss	4,695
New loans and interest accrued	2,165	17,742
Ending balance	2,735	20,193
Loans and advances to customers | Overdraft protection agreement | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance		816
Transfer to Stage 1		(816)
Transfer from Stage 1	406
Transfer from Stage 3	1
New loans and interest accrued	949
Ending balance	1,356
Loans and advances to customers | Overdraft protection agreement | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance		200
Transfer to Stage 1		(200)
Transfer to Stage 2	(1)
Transfer from Stage 1	5,580
New loans and interest accrued	3,261
Ending balance	8,840
Loans and advances to customers | Checking Account
Disclosure of detailed information about financial instruments [line items]
Opening Balance	14,232
Ending balance	33,234	14,232
Loans and advances to customers | Checking Account | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	14,231	19,605
Payments	(605)
Write-off for loss	3,259	15,183
New loans and interest accrued	22,796	9,810
Ending balance	33,163	14,231
Loans and advances to customers | Checking Account | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	10,457	6,566
Transfer to Stage 2	(19)
Transfer to Stage 3	(40)	(1,536)
Transfer from Stage 2		324
Transfer from Stage 3	53	452
Payments	(186)
Write-off for loss	189	4,892
New loans and interest accrued	8,894	9,543
Ending balance	1,182	10,457
Loans and advances to customers | Checking Account | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	203	5,147
Transfer to Stage 1		(324)
Transfer to Stage 3	(7)	(784)
Transfer from Stage 1	19
Transfer from Stage 3	18	39
Payments	(5)
Write-off for loss	192	4,008
New loans and interest accrued	636	132
Ending balance	672	203
Loans and advances to customers | Checking Account | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,572	7,892
Transfer to Stage 1	(53)	(452)
Transfer to Stage 2	(18)	(39)
Transfer from Stage 1	40	1,536
Transfer from Stage 2	7	784
Payments	(414)
Write-off for loss	2,878	6,283
New loans and interest accrued	31,054	135
Ending balance	31,310	3,572
Loans and advances to customers | Payroll loans and personal credit
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,551,399
Ending balance	3,467,924	1,551,399
Loans and advances to customers | Payroll loans and personal credit | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,551,399	921,875
Payments	(911,281)	(551,622)
Write-off for loss	29,935	27,966
New loans and interest accrued	2,857,742	1,209,111
Ending balance	3,467,925	1,551,399
Loans and advances to customers | Payroll loans and personal credit | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,478,905	875,451
Transfer to Stage 2	(26,975)	(14,721)
Transfer to Stage 3	(46,888)	(19,221)
Transfer from Stage 2	925	913
Transfer from Stage 3	360	263
Payments	(883,231)	(540,865)
Write-off for loss	2,912	2,450
New loans and interest accrued	2,795,564	1,179,535
Ending balance	3,315,748	1,478,905
Loans and advances to customers | Payroll loans and personal credit | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	32,058	17,739
Transfer to Stage 1	(925)	(913)
Transfer to Stage 3	(6,342)	(2,468)
Transfer from Stage 1	26,975	14,721
Transfer from Stage 3	78	93
Payments	(14,236)	(6,808)
Write-off for loss	4,382	4,159
New loans and interest accrued	44,999	13,851
Ending balance	78,225	32,058
Loans and advances to customers | Payroll loans and personal credit | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	40,437	28,685
Transfer to Stage 1	(360)	(263)
Transfer to Stage 2	(78)	(93)
Transfer from Stage 1	46,888	19,221
Transfer from Stage 2	6,342	2,468
Payments	(13,814)	(3,950)
Write-off for loss	22,641	21,357
New loans and interest accrued	17,179	15,725
Ending balance	73,953	40,437
Loans and advances to customers | Business loans
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,582,868
Ending balance	3,017,158	1,582,868
Loans and advances to customers | Business loans | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,582,869	443,425
Payments	(969,745)	(353,731)
Write-off for loss	2,269	3,894
New loans and interest accrued	2,406,303	1,497,069
Ending balance	3,017,158	1,582,869
Loans and advances to customers | Business loans | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,579,384	435,982
Transfer to Stage 2	(3,190)	(109)
Transfer to Stage 3	(20,918)	(1,637)
Payments	(968,510)	(349,762)
Write-off for loss	22	735
New loans and interest accrued	2,376,190	1,495,645
Ending balance	2,962,934	1,579,384
Loans and advances to customers | Business loans | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	1,298	3,026
Transfer to Stage 3		(1)
Transfer from Stage 1	3,190	109
Payments	(1,235)	(2,219)
Write-off for loss	61	499
New loans and interest accrued	1,731	882
Ending balance	4,923	1,298
Loans and advances to customers | Business loans | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	2,187	4,417
Transfer from Stage 1	20,918	1,637
Transfer from Stage 2		1
Payments		(1,750)
Write-off for loss	2,186	2,660
New loans and interest accrued	28,382	542
Ending balance	49,301	2,187
Loans and advances to customers | Real Estate loans
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,471,354
Ending balance	5,121,411	3,471,354
Loans and advances to customers | Real Estate loans | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,471,354	2,526,078
Payments	(819,772)	(547,854)
Write-off for loss	17,476	27,833
New loans and interest accrued	2,487,304	1,520,962
Ending balance	5,121,412	3,471,354
Loans and advances to customers | Real Estate loans | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	3,186,942	2,146,634
Transfer to Stage 2	(136,470)	(89,342)
Transfer to Stage 3	(64,869)	(47,101)
Transfer from Stage 2	63,128	114,130
Transfer from Stage 3	11,007	20,051
Payments	(719,768)	(441,402)
Write-off for loss	202	1,951
New loans and interest accrued	2,442,543	1,485,924
Ending balance	4,782,311	3,186,942
Loans and advances to customers | Real Estate loans | Stage 2 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	185,080	276,208
Transfer to Stage 1	(63,128)	(114,130)
Transfer to Stage 3	(20,080)	(26,501)
Transfer from Stage 1	136,470	89,342
Transfer from Stage 3	8,505	7,740
Payments	(50,792)	(63,011)
Write-off for loss	1,676	5,901
New loans and interest accrued	30,438	21,334
Ending balance	224,817	185,080
Loans and advances to customers | Real Estate loans | Stage 2 | Credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	99,333	103,236
Transfer to Stage 1	(11,007)	(20,051)
Transfer to Stage 2	(8,505)	(7,740)
Transfer from Stage 1	64,869	47,101
Transfer from Stage 2	20,080	26,501
Payments	(49,212)	(43,440)
Write-off for loss	15,598	19,979
New loans and interest accrued	14,323	13,704
Ending balance	114,283	99,333
Loans and advances to customers | Rural loans
Disclosure of detailed information about financial instruments [line items]
Opening Balance	177,637
Ending balance	700,192	177,637
Loans and advances to customers | Rural loans | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	177,637
Payments	(158,117)
New loans and interest accrued	680,671	177,637
Ending balance	700,191	177,637
Loans and advances to customers | Rural loans | Stage 1 | Not credit impaired | Gross value of loans and advances to customers
Disclosure of detailed information about financial instruments [line items]
Opening Balance	177,637
Payments	(158,117)
New loans and interest accrued	680,671	177,637
Ending balance	R$ 700,191	R$ 177,637

X

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The decrease in financial assets resulting from transfers to stage one.

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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]

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