Contingencies (Details) R$ in Millions, $ in Millions	1 Months Ended		12 Months Ended
	Jul. 31, 2019 BRL (R$)	Jul. 31, 2018 BRL (R$)	Dec. 31, 2023 BRL (R$) site patent	Dec. 31, 2023 USD ($) site patent	Jun. 30, 2021 patent	Oct. 31, 2019 lawsuit
Unfavorable Regulatory Action
Loss Contingencies [Line Items]
Number of sites jointly and severally liable for cleanup (fewer than) | site			10	10
Humalog, Humulin and Forteo
Loss Contingencies [Line Items]
Number of pending lawsuits | lawsuit						2
Emgality Patent Litigation
Loss Contingencies [Line Items]
Number of patents | patent			3	3	2
Employee Litigation, July 2018 Ruling | Brazil
Loss Contingencies [Line Items]
Damages awarded, value		R$ 300	R$ 1,260	$ 260
Employee Litigation, July 2019 Ruling | Brazil
Loss Contingencies [Line Items]
Damages awarded, value	R$ 500		R$ 131	$ 27