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Revenue (Tables)
3 Months Ended
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
Net sales to external customers by geographic areas where our customers are located were as follows:
Three Months Ended
March 31,
20212020
North America$169 $178 
South and Central America63 40 
Europe, Middle-East and Africa357 292 
Asia Pacific302 212 
Total net sales$891 $722 

Net sales from external customers for each similar type of product were as follows:
Three Months Ended
March 31,
20212020
TiO2
$696 $580 
Zircon123 65 
Feedstock and other products72 77 
Total net sales$891 $722