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Taxes to Recover - Additional Information (Detail) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes R$ 2,108,025 R$ 2,519,658
Receivables from taxes other than income tax, principal amount received   66,415
IRPJ and CSLL [member] | Top of range [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Realization of tax credit period 5 years  
ICMS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes R$ 893,206 1,129,325
ICMS [member] | Top of range [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Realization of tax credit period 5 years  
PIS and COFINS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes R$ 1,177,513 1,297,029
Subsidiaries Oxiteno S.A., Empresa Carioca de Produtos Químicos S.A. (“EMCA”) e Oleoquímica Indústria e Comércio de Produtos Químicos Ltda. (“Oleoquímica”) [member] | ICMS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes   195,037
Subsidiaries Ipiranga Produtos de Petróleo S.A. (“IPP”), Bahiana Distribuidora de Gás Ltda. (“Bahiana”), Cia. Ultragaz, AMPM, Iconic Lubrificantes S.A. (“Iconic”) [member] | ICMS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes 893,206 754,882
Subsidiary Extrafarma [member] | ICMS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes   179,405
Recoverable taxes reclassified to assets held for sale, net of provision for impairment losses 19,015  
Subsidiaries Ipiranga Produtos de Petróleo S.A. (“IPP”), Tropical Transportes Ipiranga Ltda (“Tropical”), AMPM, Iconic and Ultragaz [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes 570,140 645,978
Subsidiaries Ipiranga Produtos de Petróleo S.A. (“IPP”), Tropical Transportes Ipiranga Ltda (“Tropical”), AMPM, Iconic and Ultragaz [member] | PIS and COFINS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes reclassified to assets held for sale, net of provision for impairment losses R$ 275,813  
Subsidiaries Ipiranga Produtos de Petróleo S.A. (“IPP”), Tropical Transportes Ipiranga Ltda (“Tropical”), AMPM, Iconic and Ultragaz [member] | PIS and COFINS [member] | Top of range [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Realization of tax credit period 3 years  
Brazilian Federal Revenue Service [member] | PIS and COFINS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Recoverable taxes R$ 607,373 651,051
Recoverable taxes reclassified to assets held for sale, net of provision for impairment losses R$ 93,108  
Brazilian Federal Revenue Service [member] | PIS and COFINS [member] | Top of range [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Realization of tax credit period 2 years  
Subsidiaries [member] | ICMS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Provision for tax losses R$ 48,502 52,338
Subsidiaries [member] | PIS and COFINS [member]    
Disclosure Of Recoverable Income Tax and Social Contribution Taxes [line items]    
Tax credits received for recoverable taxes 569,212 154,225
Receivables from taxes other than income tax, principal amount received 279,598  
Receivables from taxes other than income tax, monetary variation amount received R$ 289,614 R$ 87,810