Subsidiary Guarantors Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statements, Captions [Line Items]
Net sales	$ 11,268.7	$ 11,760.0	$ 10,967.1
Total revenues	11,433.9	11,907.7	11,076.9
Cost of sales	7,432.3	7,124.6	6,379.9
Gross profit	4,001.6	4,783.1	4,697.0
Research and development	704.5	783.3	826.8
Selling, general and administrative	2,441.0	2,575.7	2,498.5
Litigation settlements and other contingencies, net	(49.5)	(13.1)	672.5
Total operating expenses	3,096.0	3,345.9	3,997.8
Earnings from operations	905.6	1,437.2	699.2
Interest expense	542.3	534.6	454.8
Other expense (income), net	64.9	(0.4)	122.7
Earnings before income taxes and noncontrolling interest	298.4	903.0	121.7
Income tax (benefit) provision	(54.1)	207.0	(358.3)
Earnings of equity interest subsidiaries	0.0	0.0	0.0
Net earnings	352.5	696.0	480.0
Other
Condensed Income Statements, Captions [Line Items]
Total revenues	165.2	147.7	109.8
Eliminations
Condensed Income Statements, Captions [Line Items]
Net sales	0.0	0.0	0.0
Total revenues	0.0	0.0	0.0
Cost of sales	0.0	0.0	0.0
Gross profit	0.0	0.0	0.0
Research and development	0.0	0.0	0.0
Selling, general and administrative	0.0	0.0	0.0
Litigation settlements and other contingencies, net	0.0	0.0	0.0
Total operating expenses	0.0	0.0	0.0
Earnings from operations	0.0	0.0	0.0
Interest expense	0.0	0.0	0.0
Other expense (income), net	0.0	0.0	0.0
Earnings before income taxes and noncontrolling interest	0.0	0.0	0.0
Income tax (benefit) provision	0.0	0.0	0.0
Earnings of equity interest subsidiaries	(725.9)	(1,499.9)	(2,035.1)
Net earnings	(725.9)	(1,499.9)	(2,035.1)
Eliminations | Other
Condensed Income Statements, Captions [Line Items]
Total revenues	0.0	0.0	0.0
Mylan N.V.
Condensed Income Statements, Captions [Line Items]
Net sales	0.0	0.0	0.0
Total revenues	0.0	0.0	0.0
Cost of sales	0.0	0.0	0.0
Gross profit	0.0	0.0	0.0
Research and development	0.0	0.0	0.0
Selling, general and administrative	40.7	45.5	71.6
Litigation settlements and other contingencies, net	0.0	0.0	0.0
Total operating expenses	40.7	45.5	71.6
Earnings from operations	(40.7)	(45.5)	(71.6)
Interest expense	349.0	378.0	198.4
Other expense (income), net	(316.4)	(484.9)	(55.6)
Earnings before income taxes and noncontrolling interest	(73.3)	61.4	(214.4)
Income tax (benefit) provision	(28.7)	(21.1)	(19.5)
Earnings of equity interest subsidiaries	397.1	613.5	674.9
Net earnings	352.5	696.0	480.0
Mylan N.V. | Other
Condensed Income Statements, Captions [Line Items]
Total revenues	0.0	0.0	0.0
Mylan Inc.
Condensed Income Statements, Captions [Line Items]
Net sales	0.0	0.0	0.0
Total revenues	0.0	0.0	0.0
Cost of sales	0.0	0.0	0.0
Gross profit	0.0	0.0	0.0
Research and development	0.0	0.0	0.0
Selling, general and administrative	517.3	650.9	664.1
Litigation settlements and other contingencies, net	7.1	17.0	0.0
Total operating expenses	524.4	667.9	664.1
Earnings from operations	(524.4)	(667.9)	(664.1)
Interest expense	154.6	104.1	161.3
Other expense (income), net	(273.3)	(264.6)	(193.2)
Earnings before income taxes and noncontrolling interest	(405.7)	(507.4)	(632.2)
Income tax (benefit) provision	(27.4)	(14.0)	(18.2)
Earnings of equity interest subsidiaries	328.8	886.4	1,360.2
Net earnings	(49.5)	393.0	746.2
Mylan Inc. | Other
Condensed Income Statements, Captions [Line Items]
Total revenues	0.0	0.0	0.0
Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Net sales	0.0	0.0	0.0
Total revenues	0.0	0.0	0.0
Cost of sales	0.0	0.0	0.0
Gross profit	0.0	0.0	0.0
Research and development	0.0	0.0	0.0
Selling, general and administrative	0.0	0.0	0.0
Litigation settlements and other contingencies, net	0.0	0.0	0.0
Total operating expenses	0.0	0.0	0.0
Earnings from operations	0.0	0.0	0.0
Interest expense	0.0	0.0	0.0
Other expense (income), net	0.0	0.0	0.0
Earnings before income taxes and noncontrolling interest	0.0	0.0	0.0
Income tax (benefit) provision	0.0	0.0	0.0
Earnings of equity interest subsidiaries	0.0	0.0	0.0
Net earnings	0.0	0.0	0.0
Guarantor Subsidiaries | Other
Condensed Income Statements, Captions [Line Items]
Total revenues	0.0	0.0	0.0
Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Net sales	11,268.7	11,760.0	10,967.1
Total revenues	11,433.9	11,907.7	11,076.9
Cost of sales	7,432.3	7,124.6	6,379.9
Gross profit	4,001.6	4,783.1	4,697.0
Research and development	704.5	783.3	826.8
Selling, general and administrative	1,883.0	1,879.3	1,762.8
Litigation settlements and other contingencies, net	(56.6)	(30.1)	672.5
Total operating expenses	2,530.9	2,632.5	3,262.1
Earnings from operations	1,470.7	2,150.6	1,434.9
Interest expense	38.7	52.5	95.1
Other expense (income), net	654.6	749.1	371.5
Earnings before income taxes and noncontrolling interest	777.4	1,349.0	968.3
Income tax (benefit) provision	2.0	242.1	(320.6)
Earnings of equity interest subsidiaries	0.0	0.0	0.0
Net earnings	775.4	1,106.9	1,288.9
Non-Guarantor Subsidiaries | Other
Condensed Income Statements, Captions [Line Items]
Total revenues	$ 165.2	$ 147.7	$ 109.8