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Marketable Securities | 12 Months Ended
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Dec. 31, 2018
Marketable Securities. |
Marketable Securities | NOTE 11. Marketable Securities 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).
(Millions) |  | December 31, 2018 |  | December 31, 2017 |
Corporate debt securities |  | $ | — |  | $ | 14 |
Commercial paper |  |  | 366 |  |  | 899 |
Certificates of deposit/time deposits |  |  | 10 |  |  | 76 |
U.S. municipal securities |  |  | 3 |  |  | 3 |
Asset-backed securities: |  |  |  |  |  |  |
Automobile loan related |  |  | 1 |  |  | 16 |
Credit card related |  |  | — |  |  | 68 |
Asset-backed securities total |  |  | 1 |  |  | 84 |
Current marketable securities |  | $ | 380 |  | $ | 1,076 |
U.S. municipal securities |  | $ | 37 |  | $ | 27 |
Non-current marketable securities |  | $ | 37 |  | $ | 27 |
Total marketable securities |  | $ | 417 |  | $ | 1,103 |
At December 31, 2018 and 2017, gross unrealized, gross realized, and net realized gains and/or losses (pre-tax) were not material. The balance at December 31, 2018, 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.
(Millions) |  | December 31, 2018 |
Due in one year or less |  | $ | 380 |
Due after one year through five years |  |  | 13 |
Due after five years through ten years |  |  | 15 |
Due after ten years |  |  | 9 |
Total marketable securities |  | $ | 417 |
3M does not currently expect risk related to its holding in asset-backed securities to materially impact its financial condition or liquidity.

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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