NOTE 11. Marketable Securities and Held-to-Maturity Debt Securities

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Marketable Securities

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The Company invests in asset-backed securities, certificates of deposit/time deposits, commercial paper, and other securities. The following is a summary of amounts recorded on the Consolidated Balance Sheet for marketable securities (current and non-current).

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At December 31, 2019 and 2018, gross unrealized, gross realized, and net realized gains and/or losses (pre-tax) were not material.

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The balance at December 31, 2019, for marketable securities by contractual maturity are shown below. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

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Held-to-Maturity Debt Securities

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In connection with the in-substance debt defeasance of the Third Lien Notes described in Note 12, the Company purchased a $0.5 billion U.S. Treasury security in the fourth quarter of 2019 that matures in the second quarter of 2020 and transferred it to a trust with irrevocable instructions to use the proceeds from its maturity to satisfy the redemption of the Third Lien Notes in May 2020. This debt security is considered held-to-maturity due to the restrictions in satisfying and discharging the Third Lien Notes, is carried at amortized cost, and is reflected in other current assets on the Company’s consolidated balance sheet. At December 31, 2019, the difference between the amortized cost of the U.S. Treasury security and its fair value was not material.