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Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jun. 30, 2017 | Mar. 31, 2017 | 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 | (28) | $ (27) | $ (12) |  |  |  |
Settlement gain position |  |  |  |  |  | $ 41 |
Interest rate swap gain | 6 | 7 | 2 |  |  |  |
Gain from currency swap | 31 |  |  |  |  |  |
Deferred purchase asset | 231 | 261 |  |  |  |  |
Sold receivables | 686 | 799 | 621 |  |  |  |
Senior Notes Due 2023 Two [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Notional amount hedge debt |  |  | $ 500 |  |  |  |
Previously hedge debt rate |  |  | 2.80% |  |  |  |
Foreign Exchange Contract [Member] | Financial Expenses Net [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Gain (loss) recognized in earnings for the period on derivative contracts | 12 | (82) | $ (7) |  |  |  |
Interest Rate and Cross Currency Swap [Member] | Financial Expenses Net [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Gain (loss) recognized in earnings for the period on derivative contracts | $ 2 | $ 6 | $ 15 |  |  |  |
Senior Notes Due 2022 [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Notional amount hedge debt |  |  |  | $ 500 | $ 500 | $ 844 |
Previously hedge debt rate |  |  |  |  |  | 2.95% |
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 |  |  |  |  |  | $ 450 |
Previously hedge debt rate |  |  |  |  |  | 3.65% |

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