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Fair Value Measurements and Financial Instruments (Details 4) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Other current assets |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Marketable securities | $ 144 | $ 23
Other current assets | Bonds Issued By Argentinian Government |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Marketable securities | 11 |
Assets |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Held-to-maturity securities | 11 |
Fair Value, Inputs, Level 1 | Other current assets | Deposits |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Marketable securities | 144 |
Fair Value, Inputs, Level 2 | Assets |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Held-to-maturity securities, fair value | $ 11 |

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