Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 1,213.5	$ 1,188.0	$ 1,174.8	$ 1,186.9	$ 1,401.7	$ 1,424.2	$ 1,351.9	$ 1,393.5	$ 4,763.2	$ 5,571.3	$ 5,715.6
Skincare
Disaggregation of Revenue [Line Items]
Revenue									1,371.4	1,481.1
Fragrance
Disaggregation of Revenue [Line Items]
Revenue									1,244.6	1,431.0
Color
Disaggregation of Revenue [Line Items]
Revenue									721.6	850.1
Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									3,337.6	3,762.2
Fashion
Disaggregation of Revenue [Line Items]
Revenue									618.8	753.8
Home
Disaggregation of Revenue [Line Items]
Revenue									470.0	563.3
Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									1,088.8	1,317.1
Brazil IPI tax release
Disaggregation of Revenue [Line Items]
Revenue									67.7	168.4
Net sales
Disaggregation of Revenue [Line Items]
Revenue									4,494.1	5,247.7	5,565.1
Representative fees
Disaggregation of Revenue [Line Items]
Revenue									0.0	283.4
Other
Disaggregation of Revenue [Line Items]
Revenue									24.9	40.2
Other revenue
Disaggregation of Revenue [Line Items]
Revenue									269.1	323.6	150.5
Operating Segments
Disaggregation of Revenue [Line Items]
Revenue									4,745.0	5,520.8	5,632.6
Operating Segments | Skincare
Disaggregation of Revenue [Line Items]
Revenue									1,371.4	1,474.7
Operating Segments | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									1,244.6	1,428.1
Operating Segments | Color
Disaggregation of Revenue [Line Items]
Revenue									721.6	845.3
Operating Segments | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									3,337.6	3,748.1
Operating Segments | Fashion
Disaggregation of Revenue [Line Items]
Revenue									618.8	750.8
Operating Segments | Home
Disaggregation of Revenue [Line Items]
Revenue									470.0	561.3
Operating Segments | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									1,088.8	1,312.1
Operating Segments | Brazil IPI tax release
Disaggregation of Revenue [Line Items]
Revenue									67.7	168.4
Operating Segments | Net sales
Disaggregation of Revenue [Line Items]
Revenue									4,494.1	5,228.6
Operating Segments | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									244.2	281.4
Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue									6.7	10.8
Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									250.9	292.2
Other operating segments and business activities(3)
Disaggregation of Revenue [Line Items]
Revenue									18.2	50.5	83.0
Other operating segments and business activities(3) | Skincare
Disaggregation of Revenue [Line Items]
Revenue									0.0	6.4
Other operating segments and business activities(3) | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									0.0	2.9
Other operating segments and business activities(3) | Color
Disaggregation of Revenue [Line Items]
Revenue									0.0	4.8
Other operating segments and business activities(3) | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									0.0	14.1
Other operating segments and business activities(3) | Fashion
Disaggregation of Revenue [Line Items]
Revenue									0.0	3.0
Other operating segments and business activities(3) | Home
Disaggregation of Revenue [Line Items]
Revenue									0.0	2.0
Other operating segments and business activities(3) | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									0.0	5.0
Other operating segments and business activities(3) | Net sales
Disaggregation of Revenue [Line Items]
Revenue									0.0	19.1
Other operating segments and business activities(3) | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									0.0	2.0
Other operating segments and business activities(3) | Other
Disaggregation of Revenue [Line Items]
Revenue									18.2	29.4
Other operating segments and business activities(3) | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									18.2	31.4
Europe, Middle East & Africa | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue									1,794.1	2,093.8
Europe, Middle East & Africa | Operating Segments | Skincare
Disaggregation of Revenue [Line Items]
Revenue									552.7	619.2
Europe, Middle East & Africa | Operating Segments | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									562.6	636.6
Europe, Middle East & Africa | Operating Segments | Color
Disaggregation of Revenue [Line Items]
Revenue									335.3	398.7
Europe, Middle East & Africa | Operating Segments | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									1,450.6	1,654.5
Europe, Middle East & Africa | Operating Segments | Fashion
Disaggregation of Revenue [Line Items]
Revenue									222.2	298.0
Europe, Middle East & Africa | Operating Segments | Home
Disaggregation of Revenue [Line Items]
Revenue									35.7	45.3
Europe, Middle East & Africa | Operating Segments | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									257.9	343.3
Europe, Middle East & Africa | Operating Segments | Net sales
Disaggregation of Revenue [Line Items]
Revenue									1,708.5	1,997.8
Europe, Middle East & Africa | Operating Segments | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									84.7	95.3
Europe, Middle East & Africa | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue									0.9	0.7
Europe, Middle East & Africa | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									85.6	96.0
South Latin America | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue									1,762.7	2,146.9	2,222.4
South Latin America | Operating Segments | Skincare
Disaggregation of Revenue [Line Items]
Revenue									512.7	564.3
South Latin America | Operating Segments | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									415.8	483.9
South Latin America | Operating Segments | Color
Disaggregation of Revenue [Line Items]
Revenue									259.3	310.7
South Latin America | Operating Segments | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									1,187.8	1,358.9
South Latin America | Operating Segments | Fashion
Disaggregation of Revenue [Line Items]
Revenue									154.0	190.6
South Latin America | Operating Segments | Home
Disaggregation of Revenue [Line Items]
Revenue									234.6	283.4
South Latin America | Operating Segments | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									388.6	474.0
South Latin America | Operating Segments | Brazil IPI tax release
Disaggregation of Revenue [Line Items]
Revenue									67.7	168.4
South Latin America | Operating Segments | Net sales
Disaggregation of Revenue [Line Items]
Revenue									1,644.1	2,001.3
South Latin America | Operating Segments | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									112.9	135.7
South Latin America | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue									5.7	9.9
South Latin America | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									118.6	145.6
North Latin America | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue									751.3	809.3	$ 811.8
North Latin America | Operating Segments | Skincare
Disaggregation of Revenue [Line Items]
Revenue									187.2	166.9
North Latin America | Operating Segments | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									188.9	218.1
North Latin America | Operating Segments | Color
Disaggregation of Revenue [Line Items]
Revenue									80.7	81.8
North Latin America | Operating Segments | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									456.8	466.8
North Latin America | Operating Segments | Fashion
Disaggregation of Revenue [Line Items]
Revenue									81.0	94.4
North Latin America | Operating Segments | Home
Disaggregation of Revenue [Line Items]
Revenue									173.7	204.2
North Latin America | Operating Segments | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									254.7	298.6
North Latin America | Operating Segments | Net sales
Disaggregation of Revenue [Line Items]
Revenue									711.5	765.4
North Latin America | Operating Segments | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									39.8	43.9
North Latin America | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue									0.0	0.0
North Latin America | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									39.8	43.9
Asia Pacific | Operating Segments
Disaggregation of Revenue [Line Items]
Revenue									436.9	470.8
Asia Pacific | Operating Segments | Skincare
Disaggregation of Revenue [Line Items]
Revenue									118.8	124.3
Asia Pacific | Operating Segments | Fragrance
Disaggregation of Revenue [Line Items]
Revenue									77.3	89.5
Asia Pacific | Operating Segments | Color
Disaggregation of Revenue [Line Items]
Revenue									46.3	54.1
Asia Pacific | Operating Segments | Total Beauty
Disaggregation of Revenue [Line Items]
Revenue									242.4	267.9
Asia Pacific | Operating Segments | Fashion
Disaggregation of Revenue [Line Items]
Revenue									161.6	167.8
Asia Pacific | Operating Segments | Home
Disaggregation of Revenue [Line Items]
Revenue									26.0	28.4
Asia Pacific | Operating Segments | Total Fashion & Home
Disaggregation of Revenue [Line Items]
Revenue									187.6	196.2
Asia Pacific | Operating Segments | Net sales
Disaggregation of Revenue [Line Items]
Revenue									430.0	464.1
Asia Pacific | Operating Segments | Representative fees
Disaggregation of Revenue [Line Items]
Revenue									6.8	6.5
Asia Pacific | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Revenue									0.1	0.2
Asia Pacific | Operating Segments | Other revenue
Disaggregation of Revenue [Line Items]
Revenue									$ 6.9	$ 6.7