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COMMITMENTS (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
COMMITMENTS (Details) [Line Items]        
Minimum of cash and cash equivalent $ 1,072,579,000 $ 1,081,642,000 $ 1,142,004,000 $ 949,327,000
percentage of acquisition 20.00%      
Top of range [member]        
COMMITMENTS (Details) [Line Items]        
Revolving credit facility $ 600,000,000      
Bottom of range [member]        
COMMITMENTS (Details) [Line Items]        
Revolving credit facility 750,000,000      
Tam Linhas Aereas S.A. [Member]        
COMMITMENTS (Details) [Line Items]        
Revolving credit facility 400,000,000      
Liquidity risk [member]        
COMMITMENTS (Details) [Line Items]        
Minimum of cash and cash equivalent $ 75,000