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Contingencies (Details) R$ in Millions, $ in Millions			1 Months Ended							148 Months Ended
	Jun. 30, 2021 BRL (R$) lawsuit request site claimant patent	Jun. 30, 2021 USD ($) lawsuit request site claimant patent	Jul. 31, 2021 claim	Jun. 30, 2021 BRL (R$) lawsuit request site claimant patent	Mar. 31, 2020 patent	Feb. 29, 2020 patent	Dec. 31, 2019	Jul. 31, 2019 BRL (R$)	Jul. 31, 2018 BRL (R$)	Jun. 30, 2021 plaintiff lawsuit patent site claimant request	Sep. 30, 2018 patent	Nov. 30, 2017 lawsuit	Jan. 31, 2013 lawsuit	Jul. 31, 2012 lawsuit	Dec. 31, 2011 lawsuit
Loss Contingencies [Line Items]
Number of requests for information | request	2	2		2						2
Unfavorable Regulatory Action
Loss Contingencies [Line Items]
Number of sites jointly and severally liable for cleanup (fewer than) | site	10	10		10						10
Actos | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	4	4		4						4
Byetta | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	570	570		570						570
Number of plaintiffs | plaintiff										805
Number of claimants | claimant	20	20		20						20
Byetta | Pancreatic Cancer or Thyroid Cancer | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	565	565		565						565
Number of plaintiffs | plaintiff										800
Byetta | Pancreatitis | Product Liability
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff										6
Byetta | Ampullary Cancer | Product Liability
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff										1
Byetta | Los Angeles | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	55	55		55						55
Number of plaintiffs | plaintiff										285
Byetta | Southern District of California | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	515	515		515						515
Number of plaintiffs | plaintiff										515
Byetta | Various State Domiciles | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	2	2		2						2
Number of plaintiffs | plaintiff										2
Cialis® | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	350	350		350						350
Jardiance | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits	95	95		95						95
Humalog, Humulin and Forteo
Loss Contingencies [Line Items]
Number of pending lawsuits	2	2		2						2
Insulin | Subsequent Event
Loss Contingencies [Line Items]
Number of claims dismissed | claim			3
Dr Reddy's Lab
Loss Contingencies [Line Items]
Limited initial market entry, supply term							21 days
Emgality Patent Litigation
Loss Contingencies [Line Items]
Number of patents | patent	2	2		2		9				2	9
Number of patents, claims dismissed | patent						6
Number of patents ruled unpatentable | patent					3
Casseres et al. v. Takeda Pharmaceutical North America, Inc., et al. | Actos | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits															1
Weiler v. Takeda Canada Inc. et al. | Actos | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits														1
Weiler v. Takeda Canada Inc. et al. | Actos | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits												1
Epp v. Takeda Canada Inc. et al. | Actos | Product Liability
Loss Contingencies [Line Items]
Number of pending lawsuits													1
Brazil | Employee Litigation
Loss Contingencies [Line Items]
Number of pending lawsuits	30	30		30						30
Damages awarded, value	R$ 950	$ 185		R$ 100				R$ 500	R$ 300

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