XML 101 R89.htm IDEA: XBRL DOCUMENT v3.8.0.1
9. PROPERTY, PLANT AND EQUIPMENT (Details 1) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress R$ 2,475,935 R$ 2,260,864
Logistics    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress 106,956 103,284
Logistics | Current investments to maintain current operations at their full capacity    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress 106,956 103,284
Mining    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress 1,435,332 1,203,761
Mining | Current investments to maintain current operations at their full capacity    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress R$ 408,522 261,056
Mining | Expansion of Casa de Pedra Mine capacity production    
Disclosure of detailed information about property, plant and equipment [line items]    
Start date [1] 2007  
Completion date [1] 2020  
Construction in progress [1] R$ 750,999 689,160
Mining | Expansion of TECAR export capacity    
Disclosure of detailed information about property, plant and equipment [line items]    
Start date [2] 2009  
Completion date [2] 2022  
Construction in progress [2] R$ 275,811 253,545
Steel    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress 327,512 399,227
Steel | Current investments to maintain current operations at their full capacity    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress [3] R$ 228,029 307,448
Steel | Supply of 16 torpedo's cars for operation in the steel industry    
Disclosure of detailed information about property, plant and equipment [line items]    
Start date 2008  
Completion date 2019  
Construction in progress R$ 99,483 91,779
Cement    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress 606,135 554,592
Cement | Current investments to maintain current operations at their full capacity    
Disclosure of detailed information about property, plant and equipment [line items]    
Construction in progress [4] R$ 51,270 24,961
Cement | Construction of cement plants    
Disclosure of detailed information about property, plant and equipment [line items]    
Start date [4] 2011  
Completion date [4] 2020  
Construction in progress R$ 554,865 R$ 529,631
[1] Estimated completion date of the Central Plant Step 1
[2] Estimated completion date of phase 60 Mtpa
[3] Refers substantially to the reforming of batteries for coke ovens and reuse of the carbochemical cooling waters
[4] Refers substantially to the acquisition of new Integrated Cement Plants