XML 121 R105.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 17 - Deferred Income Tax and Social Contribution - Deferred Tax Related to Tax Losses (Details) - BRL (R$)
R$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses R$ (49.9) R$ (61.5) R$ 276.3
Unused tax losses [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses 501.0 R$ 1,139.9  
Unused tax losses [member] | Not later than one year [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses 209.0    
Unused tax losses [member] | Later than one year and not later than two years [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses 98.3    
Unused tax losses [member] | Later than three years and not later than four years [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses 16.1    
Unused tax losses [member] | Later than four years and not later than five years [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses 10.6    
Unused tax losses [member] | Later than five years [member]      
Statement Line Items [Line Items]      
Deferred Tax Related to Tax Losses [1] R$ 167.0    
[1] There is no expectation of realization that exceeds the term of 10 years.