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Derivative instruments and hedging activities - Summary Of Pre-tax (gains) losses from Derivatives Designated in Cash Flow Hedging Relationships (Detail) - Designated as Hedging Instrument [Member] - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disclosure In Tabular Form Of Pretax Gain Loss Cash Flow Hedging Instruments [Line Items]
Other comprehensive income (loss)		$ (35)	$ (212)	$ 92	$ (268)
Cross Currency Swap Cash Flow Hedge [Member]
Disclosure In Tabular Form Of Pretax Gain Loss Cash Flow Hedging Instruments [Line Items]
Other comprehensive income (loss)	[1]	(3)	0	(5)	0
Financial Expenses Net [Member]
Disclosure In Tabular Form Of Pretax Gain Loss Cash Flow Hedging Instruments [Line Items]
Financial expenses, net		268	211	528	468
Financial Expenses Net [Member] | Cross Currency Swap Cash Flow Hedge [Member]
Disclosure In Tabular Form Of Pretax Gain Loss Cash Flow Hedging Instruments [Line Items]
Financial expenses, net	[1]	$ (14)	$ 0	$ (15)	$ 0
[1] On March 31, 2023, Teva entered into a cross-currency interest rate swap agreement, designated as cash flow hedge for accounting purposes with respect to an intercompany loan due October 2026, denominated in Japanese yen.

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- Definition

Disclosure In Tabular Form Of Pretax Gain Loss Cash Flow Hedging Instruments

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- Definition

Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-11

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- Definition

Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be ineffective.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4C

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