Lease operations - Lessee - Narrative (Details) - BRL (R$)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Notes and other explanatory information [abstract]
Cash outflow for leases	R$ 943,000,000
Leases renewed	520,000,000
Impairment for leases	R$ 0	R$ 0	R$ 0

The cash outflow for leases.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 16
-IssueDate 2025-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
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