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Marketable Securities | 3 Months Ended
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Mar. 31, 2017
Marketable Securities [Abstract] |
Marketable Securities | Marketable Securities The following table summarizes the fair value of cash equivalents and marketable securities which approximates cost:
| Fair Value Level |  | March 31, 2017 |  | December 31, 2016
Cash and cash equivalents |  |  |  |  |
Cash, cash equivalents and time deposits |  |  | $ | 6,857 |  |  | $ | 6,077 |
Available-for-sale securities |  |  |  |  |
U.S. government and agencies | 2 |  | 1,128 |  |  | 1,158 |
Corporate debt | 2 |  | 2,459 |  |  | 2,524 |
Money market funds | 1 |  | 1,768 |  |  | 1,802 |
Sovereign debt | 2 |  | 652 |  |  | 1,399 |
Total available-for-sale securities – cash equivalents |  |  | 6,007 |  |  | 6,883 |
Total cash and cash equivalents |  |  | $ | 12,864 |  |  | $ | 12,960 |
Marketable securities |  |  |  |  |  |
U.S. government and agencies | 2 |  | $ | 4,053 |  |  | $ | 5,886 |
Corporate debt | 2 |  | 3,974 |  |  | 3,611 |
Mortgage and asset-backed | 2 |  | 370 |  |  | 197 |
Sovereign debt | 2 |  | 1,863 |  |  | 2,147 |
Total available-for-sale securities – marketable securities |  |  | $ | 10,260 |  |  | $ | 11,841 |
Restricted cash |  |  |  |  |
Cash, cash equivalents and time deposits |  |  | $ | 547 |  |  | $ | 531 |
Available-for-sale securities, primarily money market funds | 1 |  | 2,153 |  |  | 1,687 |
Total restricted cash |  |  | $ | 2,700 |  |  | $ | 2,218 |
Available-for-sale securities included above with contractual maturities(a) |  |  |  |  |
Due in one year or less |  |  | $ | 8,673 |  |  |
Due between one and five years |  |  | 5,474 |  |  |
Total available-for-sale securities with contractual maturities |  |  | $ | 14,147 |  |  |
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(a) | Excludes mortgage and asset-backed securities.
Sales proceeds from investments classified as available-for-sale and sold prior to maturity were $626 million and $2.6 billion in the three months ended March 31, 2017 and 2016. Net unrealized gains and losses on available-for-sale securities and realized gains and losses on trading securities were insignificant in the three months ended March 31, 2017 and 2016. Cumulative unrealized gains and losses on available-for-sale securities were insignificant at March 31, 2017 and December 31, 2016. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheet to the total shown in the condensed consolidated statements of cash flows:
| March 31, 2017
Cash and cash equivalents | $ | 12,864 |
Restricted cash included in Other current assets | 2,103 |
Restricted cash included in Other assets | 579 |
Total | $ | 15,546 |

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- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References No definition available. + Details
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