Cover Page - $ / shares	9 Months Ended
	Sep. 30, 2020	Oct. 31, 2020	Dec. 31, 2019
Cover [Abstract]
Entity Address, Address Line One	Building 4
Title of 12(b) Security	Ordinary shares, nominal value €0.01
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	P7
Entity Tax Identification Number	98-1493528
Entity File Number	333-199861
Entity Registrant Name	MYLAN N.V.
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Entity Filler Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Ordinary Shares, Shares Outstanding		541,545,862
Ordinary shares nominal value (in Euro's per share)	$ 0.01		$ 0.01
Trading Symbol	MYL
Security Exchange Name	NASDAQ
Entity Address, Address Line Two	Trident Place
Entity Address, Address Line Three	Mosquito Way
Entity Address, City or Town	Hatfield
Entity Address, Postal Zip Code	AL10 9UL
Entity Address, Country	GB
Country Region	44
City Area Code	1707
Local Phone Number	853-000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Central Index Key	0001623613
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31