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ACCUMULATED OTHER COMPREHENSIVE LOSS Accumulated Other Comprehensive Loss
 6 Months Ended
Jun. 30, 2020
Statement of Other Comprehensive Income [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Postretirement Benefit PlansCumulative Translation AdjustmentAccumulated Other Comprehensive Loss
December 31, 2019$(133.3) $(252.0) $(385.3) 
Net change during period0.9  (51.3) (50.4) 
March 31, 2020(132.4) (303.3) (435.7) 
Net change during period0.9  2.1  3.0  
June 30, 2020$(131.5) $(301.2) $(432.7) 
Postretirement Benefit PlansCumulative Translation AdjustmentAccumulated Other Comprehensive Loss
December 31, 2018$(131.6) $(243.9) $(375.5) 
Net change during period0.6  (2.4) (1.8) 
March 31, 2019$(131.0) $(246.3) $(377.3) 
Net change during period0.5  5.3  5.8  
June 30, 2019$(130.5) $(241.0) $(371.5)