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Contingencies and Litigation (Tables)
 6 Months Ended
Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]  
Brazil Tax Contingencies Below is a summary of our Brazilian tax contingencies:
June 30,
2020		December 31,
2019
Tax contingency - unreserved$336  $442  
Escrow cash deposits38  51  
Surety bonds102  135  
Letters of credit71  91  
Liens on Brazilian assets—  —