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Legal Settlements and Loss Contingencies - Additional Information (Detail) € in Millions, $ in Millions		3 Months Ended
	Jan. 27, 2022 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 EUR (€)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Legal settlements and loss contingencies, expense	$ 420	$ 1,124	$ 104
Accrued amount for legal settlements and loss contingencies		$ 3,762		€ 60.5	$ 2,710
Settlement On Account Of Product Liability [Member] | United States [Member]
Loss Contingencies [Line Items]
Restructuring expense and income		The expenses in the first quarter of 2022 were mainly related to an update of the estimated settlement provision recorded in connection with the remaining opioid cases.	The expenses in the first quarter of 2021 were mainly due to the provision for the carvedilol patent litigation.

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Restructuring expense and income

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Amount of loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

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