The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

+ Details

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

+ Details

Name:	us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_InProcessResearchAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=teva_LenalidomideProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=teva_ActavisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=teva_GenericPipelineProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=teva_ProductRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=teva_AustedoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_JP
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Identifiable Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets useful life			12 years
Amortization of intangible assets	$ 249	$ 285	$ 507	$ 568
Impairment of intangible assets excluding goodwill	120	561	768	1,030
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill	17	196	348	461
In Process Research and Development [Member] \| Lenalidomide Product [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill				125
Actavis [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill		59
Actavis [Member] \| In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination recognized identifiable assets	1,317		1,317
Impairment of intangible assets excluding goodwill				59
Actavis [Member] \| In Process Research and Development [Member] \| Lenalidomide Product [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill				277
Actavis [Member] \| In Process Research and Development [Member] \| Generic Pipeline Products [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill		137
Actavis [Member] \| Identifiable product rights [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill	$ 103	$ 365	420	$ 569
AUSTEDO [Member] \| In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			211
Japan [Member] \| Identifiable product rights [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			165
Japan [Member] \| Actavis [Member] \| In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			232
United States [Member] \| Actavis [Member] \| In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			$ 117