Risk management (Details 3) - BRL (R$)
R$ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in income |
R$ 940
|
R$ 1,404
|
| Income debt instruments |
940
|
1,404
|
| Financial assets measured at fair value in profit or loss for trading |
152,373
|
123,530
|
| Profit or loss debt instruments |
97,556
|
89,871
|
| Profit or loss equity instruments |
116
|
40
|
| Profit or loss derivatives |
54,701
|
33,619
|
| Financial assets not intended for trading Mandatory measured at the fair value of the result |
173
|
209
|
| Fair value of the result debt instruments |
173
|
209
|
| Financial assets measured at fair value in other comprehensive income |
74,554
|
103,367
|
| Comprehensive income debt instruments |
74,554
|
103,367
|
| Financial Assets Measured at Amortized Cost |
718,516
|
679,164
|
| Loans and Other Amounts with Credit institutions |
101,830
|
118,553
|
| Loans and advances to customers |
505,323
|
493,892
|
| Amortized cost debt instruments |
111,363
|
66,719
|
| Amortized cost total |
946,555
|
907,465
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
84,650
|
51,593
|
| Fair value in income held for trading derivatives |
35,270
|
12,196
|
| Short Positions |
49,380
|
39,397
|
| Financial liabilities at amortized cost |
846,665
|
815,953
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
123,399
|
123,044
|
| Customer deposits |
518,151
|
518,965
|
| Bonds and securities |
176,783
|
150,602
|
| Debt Instruments Eligible to Capital |
28,332
|
23,342
|
| Total |
931,315
|
867,546
|
| Ranges 91to 365 Days [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in income |
128
|
121
|
| Income debt instruments |
128
|
121
|
| Financial assets measured at fair value in profit or loss for trading |
22,998
|
24,793
|
| Profit or loss debt instruments |
18,943
|
19,038
|
| Profit or loss derivatives |
4,055
|
5,755
|
| Financial assets measured at fair value in other comprehensive income |
15,195
|
4,977
|
| Comprehensive income debt instruments |
15,195
|
4,977
|
| Financial Assets Measured at Amortized Cost |
161,223
|
153,954
|
| Loans and Other Amounts with Credit institutions |
1,823
|
2,197
|
| Loans and advances to customers |
133,145
|
138,836
|
| Amortized cost debt instruments |
26,255
|
12,921
|
| Amortized cost total |
199,544
|
183,845
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
1,414
|
1,958
|
| Fair value in income held for trading derivatives |
1,414
|
1,958
|
| Short Positions |
|
|
| Financial liabilities at amortized cost |
235,321
|
249,441
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
66,223
|
68,882
|
| Customer deposits |
112,578
|
124,584
|
| Bonds and securities |
56,520
|
55,975
|
| Debt Instruments Eligible to Capital |
|
|
| Total |
236,735
|
251,399
|
| One To Fiveyears [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in income |
812
|
1,283
|
| Income debt instruments |
812
|
1,283
|
| Financial assets measured at fair value in profit or loss for trading |
48,620
|
52,083
|
| Profit or loss debt instruments |
32,994
|
35,033
|
| Profit or loss equity instruments |
80
|
23
|
| Profit or loss derivatives |
15,546
|
17,027
|
| Financial assets measured at fair value in other comprehensive income |
18,318
|
59,238
|
| Comprehensive income debt instruments |
18,318
|
59,238
|
| Financial Assets Measured at Amortized Cost |
262,885
|
234,133
|
| Loans and Other Amounts with Credit institutions |
1,045
|
3,910
|
| Loans and advances to customers |
205,986
|
193,061
|
| Amortized cost debt instruments |
55,854
|
37,162
|
| Amortized cost total |
330,634
|
346,737
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
4,892
|
6,497
|
| Fair value in income held for trading derivatives |
4,892
|
6,497
|
| Short Positions |
|
|
| Financial liabilities at amortized cost |
280,848
|
242,650
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
16,787
|
21,268
|
| Customer deposits |
177,206
|
160,324
|
| Bonds and securities |
86,855
|
61,058
|
| Debt Instruments Eligible to Capital |
|
|
| Total |
285,740
|
249,147
|
| On demand [member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in profit or loss for trading |
10,493
|
7,700
|
| Profit or loss debt instruments |
10,493
|
7,700
|
| Financial assets measured at fair value in other comprehensive income |
2,299
|
2,183
|
| Comprehensive income debt instruments |
2,299
|
2,183
|
| Financial Assets Measured at Amortized Cost |
99,986
|
113,264
|
| Loans and Other Amounts with Credit institutions |
98,671
|
110,426
|
| Loans and advances to customers |
735
|
2,557
|
| Amortized cost debt instruments |
580
|
281
|
| Amortized cost total |
112,778
|
123,147
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
49,415
|
39,403
|
| Fair value in income held for trading derivatives |
35
|
6
|
| Short Positions |
49,380
|
39,397
|
| Financial liabilities at amortized cost |
170,248
|
174,985
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
447
|
508
|
| Customer deposits |
169,801
|
174,477
|
| Bonds and securities |
|
|
| Debt Instruments Eligible to Capital |
|
|
| Total |
219,663
|
214,388
|
| Range 31to 90 Days [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in profit or loss for trading |
45,929
|
6,779
|
| Profit or loss debt instruments |
14,090
|
1,123
|
| Profit or loss equity instruments |
36
|
17
|
| Profit or loss derivatives |
31,803
|
5,639
|
| Financial assets measured at fair value in other comprehensive income |
10,161
|
5,258
|
| Comprehensive income debt instruments |
10,161
|
5,258
|
| Financial Assets Measured at Amortized Cost |
104,415
|
107,139
|
| Loans and Other Amounts with Credit institutions |
291
|
2,020
|
| Loans and advances to customers |
102,261
|
98,218
|
| Amortized cost debt instruments |
1,863
|
6,901
|
| Amortized cost total |
160,505
|
119,176
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
28,051
|
2,529
|
| Fair value in income held for trading derivatives |
28,051
|
2,529
|
| Short Positions |
|
|
| Financial liabilities at amortized cost |
129,579
|
116,741
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
39,764
|
32,060
|
| Customer deposits |
58,543
|
59,547
|
| Bonds and securities |
31,272
|
25,134
|
| Debt Instruments Eligible to Capital |
|
|
| Total |
157,630
|
119,270
|
| Top Of Time Interval [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Financial assets measured at fair value in profit or loss for trading |
24,333
|
32,175
|
| Profit or loss debt instruments |
21,036
|
26,977
|
| Profit or loss derivatives |
3,297
|
5,198
|
| Financial assets not intended for trading Mandatory measured at the fair value of the result |
173
|
209
|
| Fair value of the result debt instruments |
173
|
209
|
| Financial assets measured at fair value in other comprehensive income |
28,581
|
31,711
|
| Comprehensive income debt instruments |
28,581
|
31,711
|
| Financial Assets Measured at Amortized Cost |
90,007
|
70,674
|
| Loans and advances to customers |
63,196
|
61,220
|
| Amortized cost debt instruments |
26,811
|
9,454
|
| Amortized cost total |
143,094
|
134,560
|
| Financial Liabilities Measured at Fair Value in income Held for Trading |
878
|
1,206
|
| Fair value in income held for trading derivatives |
878
|
1,206
|
| Short Positions |
|
|
| Financial liabilities at amortized cost |
30,669
|
32,136
|
| Deposits from the Central Bank of Brazil and deposits from credit institutions |
178
|
326
|
| Customer deposits |
23
|
33
|
| Bonds and securities |
2,136
|
8,435
|
| Debt Instruments Eligible to Capital |
28,332
|
23,342
|
| Total |
R$ 31,547
|
R$ 33,342
|