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Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jul. 31, 2016
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Revenues other than USD | 49.00% |  | 49.00% |  |  |  |  |  |
Teva other comprehensive loss |  |  | $ 493 |  |  |  |  |  |
Transactions termination loss settled |  |  | 242 |  |  |  |  |  |
Forward starting interest rate swaps and treasury lock agreements losses | $ 7 | $ 7 | 15 | $ 14 |  |  |  |  |
Interest Rate Swap Gain | $ 2 | $ 2 | $ 3 | $ 3 |  |  |  |  |
Senior Notes Due 2023 Two [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Notional amount hedge debt |  |  |  |  |  |  | $ 500 |  |
Previously hedge debt rate |  |  |  |  |  |  | 2.80% |  |
Settlement gain position |  |  |  |  |  |  |  | $ 41 |
Senior Notes Due 2022 [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Notional amount hedge debt |  |  |  |  |  |  |  | $ 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% |
Senior Notes Due 2020 [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Notional amount hedge debt |  |  |  |  | $ 500 | $ 500 |  |  |

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