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A summary of marketable securities, all of which were classified as current, was as follows:
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March 29,
2020 |
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December 31,
2019 |
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| In millions |
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Cost |
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Gross unrealized gains/(losses)(1)
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Estimated
fair value |
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Cost |
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Gross unrealized gains/(losses)(1)
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Estimated
fair value |
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| Equity securities |
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| Debt mutual funds |
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$ |
217 |
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$ |
4 |
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$ |
221 |
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$ |
180 |
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$ |
3 |
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$ |
183 |
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| Certificates of deposit |
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95 |
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— |
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95 |
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133 |
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— |
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133 |
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| Equity mutual funds |
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22 |
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(1) |
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21 |
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19 |
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4 |
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23 |
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| Bank debentures |
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1 |
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— |
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1 |
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1 |
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— |
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1 |
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| Debt securities |
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1 |
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— |
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1 |
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1 |
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— |
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1 |
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| Total marketable securities |
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$ |
336 |
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$ |
3 |
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$ |
339 |
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$ |
334 |
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$ |
7 |
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$ |
341 |
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(1) Unrealized gains and losses for debt securities are recorded in other comprehensive income while unrealized gains and losses for equity securities are recorded in "Other income, net" in our Condensed Consolidated Statements of Net Income.
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