Accumulated Other Comprehensive Income (Loss) (Components of Comprehensive Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	$ (725.0)
Other comprehensive income (loss) other than reclassifications	(114.7)	$ 91.4
Amortization of net actuarial loss and prior service cost, net of tax	10.5	15.6
Total reclassifications into earnings	(10.5)	(15.6)
Accumulated other comprehensive income, ending balance	(904.5)	(725.0)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(829.6)	(910.9)
Other comprehensive income (loss) other than reclassifications	(106.6)	81.3
Total reclassifications into earnings	0.0	0.0
Accumulated other comprehensive income, ending balance	(936.2)	(829.6)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	0.0
Other comprehensive income (loss) other than reclassifications	0.5
Reclassifications of derivative gains into earnings	0.0
Accumulated other comprehensive income, ending balance	0.5	0.0
Net Investment Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(4.3)	(4.3)
Other comprehensive income (loss) other than reclassifications	0.0	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	(95.7)	(120.2)
Other comprehensive income (loss) other than reclassifications	(8.6)	8.9
Amortization of net actuarial loss and prior service cost, net of tax	10.5	15.6
Total reclassifications into earnings	(10.5)	(15.6)
Accumulated other comprehensive income, ending balance	(93.8)	(95.7)
Amortization of net actuarial loss and prior service cost, tax	0.6	0.8
Investment in New Avon
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	3.4	2.2
Other comprehensive income (loss) other than reclassifications	0.0	1.2
Total reclassifications into earnings	0.0	0.0
Accumulated other comprehensive income, ending balance	3.4	3.4
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated other comprehensive income, beginning balance	(926.2)	(1,033.2)
Accumulated other comprehensive income, ending balance	$ (1,030.4)	$ (926.2)