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Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jul. 31, 2016
Derivative [Line Items]
Revenues other than USD	48.00%
Teva other comprehensive loss	$ 493
Transactions termination loss settled	242
Forward starting interest rate swaps and treasury lock agreements losses	29	$ 28	$ 27
Interest Rate Swap Gain	6	6	7
Deferred purchase asset	250	231
Sold receivables	690	$ 686	$ 799
Senior Notes Due 2023 Two [Member]
Derivative [Line Items]
Notional amount hedge debt				$ 500			$ 500	$ 3,000
Previously hedge debt rate							2.80%
Cash received on settlement of position				$ 10				$ 10
Senior Notes Due 2022 [Member]
Derivative [Line Items]
Previously hedge debt rate				2.80%
Asset Derivatives - Options and Forward Contracts [Member] | Cash Flow Hedge [Member]
Derivative [Line Items]
Notional amount hedge debt									$ 3,750
Treasury Lock [Member] | Cash Flow Hedge [Member]
Derivative [Line Items]
Notional amount hedge debt									$ 1,500
Senior Notes Due 2021 [Member]
Derivative [Line Items]
Notional amount hedge debt	$ 588
Previously hedge debt rate	3.65%
Cash received on settlement of position	$ 95
Senior Notes Due 2020 [Member]
Derivative [Line Items]
Notional amount hedge debt					$ 500	$ 500
Senior Notes Due 2021 Two [Member]
Derivative [Line Items]
Previously hedge debt rate	3.65%
Cash received on settlement of position	$ 95

X

- Definition

Notional amount hedge debt.

+ References

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- Definition

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+ References

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X

- Definition

Forward starting interest rate swaps and treasury lock agreements losses.

+ References

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- Definition

Interest rate swap gain.

+ References

No definition available.

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X

- Definition

Notional amount hedge debt.

+ References

No definition available.

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- Definition

Previously hedge debt rate.

+ References

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- Definition

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+ References

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X

- Definition

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+ References

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- Definition

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+ References

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- Definition

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- Definition

Amount of decrease in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

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