v3.25.1
FINANCIAL ASSETS AND LIABILITIES - Summary of Financial Investments (Detail) - BRL (R$)
R$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Cash and cash equivalents1 [line items]    
Financial investments R$ 15,459,411 R$ 14,017,991
Applications in investment funds [member]    
Cash and cash equivalents1 [line items]    
Financial investments 2,122,442 3,298,142
Applications in investment funds [member] | Repurchase agreements [member]    
Cash and cash equivalents1 [line items]    
Financial investments [1] 1,493,278 3,259,210
Applications in investment funds [member] | Certificate of bank deposits - CDB [member]    
Cash and cash equivalents1 [line items]    
Financial investments 604,398
Applications in investment funds [member] | Others [Member]    
Cash and cash equivalents1 [line items]    
Financial investments 24,766 38,932
Applications in banks [member]    
Cash and cash equivalents1 [line items]    
Financial investments 13,336,969 10,719,849
Applications in banks [member] | Repurchase agreements [member]    
Cash and cash equivalents1 [line items]    
Financial investments 236,101 616,633
Applications in banks [member] | Certificate of bank deposits - CDB [member]    
Cash and cash equivalents1 [line items]    
Financial investments 12,102,078 9,807,983
Applications in banks [member] | Others [Member]    
Cash and cash equivalents1 [line items]    
Financial investments R$ 998,790 R$ 295,233
[1] The repurchase agreements are allocated to the WG Renda Fixa Crédito Privado Fundo de Investimento (“WG”), which was created in the form of an open ended fund and is managed by Itaú Unibanco Asset Management Ltda. (“Itaú Asset”). The fund's portfolio is composed of investments in public bonds and repurchase agreements backed by federal public bonds.