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Earnings per share (Details) R$ in Millions	12 Months Ended
	Dec. 31, 2024 $ / shares	Dec. 31, 2024 BRL (R$) shares	Dec. 31, 2023 $ / shares	Dec. 31, 2023 BRL (R$) shares	Dec. 31, 2022 $ / shares	Dec. 31, 2022 BRL (R$) shares
IfrsStatementLineItems [Line Items]
Total net income available to equity owners		R$ 41,085		R$ 33,105		R$ 29,207
Minimum non-cumulative dividends on preferred shares		(117)		(117)		(117)
Retained earnings to be distributed to common shares		(120)		(120)		(120)
Ordinary shares [member]
IfrsStatementLineItems [Line Items]
Total net income available to equity owners		20,811		16,754		14,781
Retained earnings		R$ 20,691		R$ 16,634		R$ 14,661
Weighted average number of shares outstanding | shares		5,454,119,395		5,454,119,395		5,454,119,395
Basic earnings per share | $ / shares	$ 3.82		$ 3.07		$ 2.71
Preference shares [member]
IfrsStatementLineItems [Line Items]
Total net income available to equity owners		R$ 20,274		R$ 16,351		R$ 14,426
Retained earnings		R$ 20,157		R$ 16,234		R$ 14,309
Weighted average number of shares outstanding | shares		5,313,264,028		5,323,043,889		5,322,863,899
Basic earnings per share | $ / shares	$ 3.82		$ 3.07		$ 2.71

X

- Definition

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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