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INVESTMENTS IN RELATED COMPANIES
 12 Months Ended
Dec. 31, 2020
Investments in Related Companies [Abstract]  
Investments in Related Companies INVESTMENTS IN RELATED COMPANIES
The Corporation's ownership interests in related companies at December 31, 2020 and 2019 were as follows:

Investments in Related Companies at Dec 31Ownership InterestInvestment Balance
In millions2020201920202019
Dow International Holdings Company5 %5 %$232 $232 
Dow Quimica Mexicana S.A. de C.V.15 %15 %5 5 
Other— %— %— 1 
Total investments in related companies$237 $238