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Condensed Consolidated Statements of Changes in Equity (Parenthetical) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jul. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Aug. 01, 2020
Common stock, par value (in USD per share)   $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10 $ 0.10  
Dividends (in USD per share)   $ 0.44 $ 0.44 $ 0.44 $ 0.40 $ 0.40 $ 0.40  
Purchase of noncontrolling interest $ 7.4              
PT Bina Guna Kimia                
Ownership interest acquired 49.00%              
Ownership percentage 51.00%             100.00%