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Schedule Of Other Derivatives Not Designated As Hedging Instruments Statements OfFinancial Performance And Financial Position Location (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Net Revenues [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax |  | $ (4,337) | $ (4,701) | $ (8,632) | $ (9,766)
Net Revenues [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax |  | 4 | (1) | 4 | (1)
Financial expenses [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax |  | 206 | 236 | 425 | 507
Financial expenses [Member] | Not Designated as Hedging Instrument, Trading [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax | [1] | $ 34 | $ (24) | $ (7) | $ (5)
[1] | Teva uses foreign exchange contracts (mainly option and forward contracts) to hedge balance sheet items from currency exposure. These foreign exchange contracts are not designated as hedging instruments for accounting purposes. In connection with these foreign exchange contracts, Teva recognizes gains or losses that offset the revaluation of the balance sheet items also recorded under financial expenses—net.

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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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