RESTRUCTURING INITIATIVES (Details) $ in Millions		1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jan. 31, 2016 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges and other costs				$ 17.5	$ 19.8	$ 93.2	$ 54.4
Open Up Avon
Restructuring Cost and Reserve [Line Items]
Expected annualized savings before taxes		$ 400.0
Restructuring charges and other costs				10.8	19.1	$ 84.1	19.1
Reduction in workforce						0.10		0.08
Recorded total costs to implement restructuring initiatives				227.4		$ 227.4
Open Up Avon | Inventory/ Asset Write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring charges and other costs	$ 88.0
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Expected annualized savings before taxes			$ 350.0
Restructuring charges and other costs				6.7	0.7	9.0	36.0
Recorded total costs to implement restructuring initiatives				214.4		214.4
Other Restructuring Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges and other costs				$ 0.0	$ 0.0	$ 0.1	$ (0.7)