Accumulated Other Comprehensive Income (Loss) (Components of Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	$ (990.6)
Other comprehensive (loss) other than reclassifications	(102.6)	$ (16.9)
Derivative gains (losses) on cash flow hedges, net of tax	0.6	1.3
Amortization of net actuarial loss and prior service cost, net of tax	8.2	9.4
Sale of New Avon		(3.4)
Total reclassifications into earnings	8.8	7.3
Accumulated other comprehensive income, ending balance	(871.5)	(990.6)
Derivative gains on cash flow hedges, tax	0.0	0.0
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(1,040.0)	(1,030.4)
Accumulated other comprehensive income, ending balance	(1,133.8)	(1,040.0)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(942.7)	(936.2)
Other comprehensive (loss) other than reclassifications	(95.5)	(6.5)
Derivative gains (losses) on cash flow hedges, net of tax	0.0	0.0
Amortization of net actuarial loss and prior service cost, net of tax	0.0	0.0
Sale of New Avon		0.0
Total reclassifications into earnings	0.0	0.0
Accumulated other comprehensive income, ending balance	(1,038.2)	(942.7)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(0.6)	0.5
Other comprehensive (loss) other than reclassifications	0.0	(2.4)
Derivative gains (losses) on cash flow hedges, net of tax	0.6	1.3
Amortization of net actuarial loss and prior service cost, net of tax	0.0	0.0
Sale of New Avon
Total reclassifications into earnings	0.6	1.3
Accumulated other comprehensive income, ending balance	0.0	(0.6)
Net Investment Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(4.3)	(4.3)
Other comprehensive (loss) other than reclassifications	0.0	0.0
Derivative gains (losses) on cash flow hedges, net of tax	0.0	0.0
Amortization of net actuarial loss and prior service cost, net of tax	0.0	0.0
Sale of New Avon		0.0
Total reclassifications into earnings	0.0	0.0
Accumulated other comprehensive income, ending balance	(4.3)	(4.3)
Pension and Postretirement Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(92.4)	(93.8)
Other comprehensive (loss) other than reclassifications	(7.1)	(8.0)
Derivative gains (losses) on cash flow hedges, net of tax	0.0	0.0
Amortization of net actuarial loss and prior service cost, net of tax	8.2	9.4
Sale of New Avon		0.0
Total reclassifications into earnings	8.2	9.4
Accumulated other comprehensive income, ending balance	(91.3)	(92.4)
Amortization of net actuarial loss and prior service cost, tax	0.8	0.4
Investment in New Avon
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	$ 0.0	3.4
Other comprehensive (loss) other than reclassifications		0.0
Derivative gains (losses) on cash flow hedges, net of tax		0.0
Amortization of net actuarial loss and prior service cost, net of tax		0.0
Sale of New Avon		(3.4)
Total reclassifications into earnings		(3.4)
Accumulated other comprehensive income, ending balance		$ 0.0