Contingencies (Details) R$ in Millions, $ in Millions		1 Months Ended		3 Months Ended
	Mar. 31, 2019 USD ($) application company request patent demand	Jul. 31, 2018 BRL (R$)	Jun. 30, 2018 case	Mar. 31, 2019 USD ($) lawsuit application company request patent individual demand defendant product
Loss Contingencies [Line Items]
Number of generic products | product				1
Dr Reddy's Lab
Loss Contingencies [Line Items]
Claims settled and dismissed | case			2
Japanese Administrative Proceedings
Loss Contingencies [Line Items]
Number of demands | demand	3			3
Number of patents | patent	2			2
Adocia S.A
Loss Contingencies [Line Items]
Number of patents | patent	2			2
Amount of claim | $	$ 1,300.0			$ 1,300.0
Gain contingency, unrecorded amount | $	$ 188.0			$ 188.0
Insulin and Glucagon Pricing Litigation and Proceedings
Loss Contingencies [Line Items]
Number of requests for information from Committee on Energy and Commerce | request	2			2
U.S. | Alimta®
Loss Contingencies [Line Items]
Number of new application | application	10			10
Number of defendants | defendant				2
Number of companies | company	5			5
Brazil | Employee Litigation
Loss Contingencies [Line Items]
Damages awarded, value	$ 130.0	R$ 500.0
Number of lawsuits | lawsuit				30
Plaintiff Appealing Decision of Court | Brazil | Employee Litigation
Loss Contingencies [Line Items]
Number of similar lawsuits | lawsuit				2
Number of individuals				410
Plaintiff Appealing Decision of Court | Brazil | Employee Litigation, Similar Lawsuit One
Loss Contingencies [Line Items]
Number of individuals				305
Plaintiff Appealing Decision of Court | Brazil | Employee Litigation, Similar Lawsuit Two
Loss Contingencies [Line Items]
Number of individuals				105