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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		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Comprehensive Income [Member]
Derivative [Line Items]
Other comprehensive income (loss)		$ 91	$ (270)	$ (391)
Financial expenses [Member]
Derivative [Line Items]
Financial expenses, net		1,057	966	1,058
Cross Currency Swap Cash Flow Hedge [Member] | Other Comprehensive Income [Member]
Derivative [Line Items]
Other comprehensive income (loss)	[1]	1	0	0
Cross Currency Swap Cash Flow Hedge [Member] | Financial expenses [Member]
Derivative [Line Items]
Financial expenses, net	[1]	$ (11)	$ 0	$ 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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
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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
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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.

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-Section 50
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