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Income Taxes (Details 2) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Deferred tax assets: |  |
Reserves not yet deducted for tax purposes | $ 2,724 | $ 3,889
Employee compensation and benefits | 403 | 595
Deferred Tax Assets, Other | 409 | 592
Gross deferred tax assets | 3,536 | 5,076
Valuation allowance | (46) | (54)
Deferred tax assets after valuation allowance | 3,490 | 5,022
Deferred tax liabilities: |  |
Intangibles and fixed assets | 1,057 | 1,691
Deferred revenue | 306 | 441
Deferred interest | 183 | 305
Asset Securitization | 0 | 0
Investment in joint ventures | 137 | 209
Foreign deferred tax liabilities | 259 | 121
Gross deferred tax liabilities | 1,942 | 2,767
Net deferred tax assets | $ 1,548 | $ 2,255

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