Results of Operations by Quarter (Unaudited) (Financial Results of Operations by Quarter) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Data [Abstract]
Total revenue	$ 1,401.7	$ 1,424.2	$ 1,351.9	$ 1,393.5	$ 1,568.8	$ 1,417.8	$ 1,395.9	$ 1,333.1	$ 5,571.3	$ 5,715.6	$ 5,717.7
Gross profit	695.5	885.8	812.2	813.8	957.6	867.8	870.9	816.0	3,207.3	3,512.3
Operating profit	(49.6)	186.9	53.0	44.9	131.5	87.3	32.7	29.8	235.2	281.3	323.8
Income (Loss) from continuing operations, before taxes	(84.1)	182.1	(0.3)	10.4	91.6	48.0	(12.2)	(6.7)	108.1	120.7	31.2
(Loss) income from continuing operations, net of tax	(77.5)	113.8	(37.0)	(21.1)	90.4	11.9	(45.8)	(36.5)	(21.8)	20.0	(93.4)
Net loss attributable to noncontrolling interests	(0.1)	0.7	0.9	0.8	1.1	0.6	0.3	0.0	2.3	2.0	(0.2)
Net (loss) income attributable to Avon	$ (77.6)	$ 114.5	$ (36.1)	$ (20.3)	$ 91.5	$ 12.5	$ (45.5)	$ (36.5)	$ (19.5)	$ 22.0	$ (107.6)
(Loss) earnings per common share from continuing operations
Basic (in dollars per share)	$ (0.19)	$ 0.21	$ (0.09)	$ (0.06)	$ 0.17	$ 0.01	$ (0.12)	$ (0.10)	$ (0.10)	$ 0.00	$ (0.25)
Diluted (in dollars per share)	$ (0.19)	$ 0.21	$ (0.09)	$ (0.06)	$ 0.17	$ 0.01	$ (0.12)	$ (0.10)	$ (0.10)	$ 0.00	$ (0.25)