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Short-Term Deposits and Marketable Securities (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Changes in Value of Marketable Securities Reported in Current Assets on Consolidated Balance Sheets | Changes in the fair value of marketable securities are detailed in the tables below:
|  | December 31, 2022 |  | Purchase |  | Accretion |  | Proceeds at maturity |  | Change in fair value included in OCI* |  | December 31, 2023
U.S. Treasury debt securities |  | 679 |  |  | 1,653 |  |  | 47 |  |  | (750) |  |  | 6 |  |  | 1,635 |
Total |  | 679 |  |  | 1,653 |  |  | 47 |  |  | (750) |  |  | 6 |  |  | 1,635 |
* Other Comprehensive Income
|  | December 31, 2021 |  | Purchase |  | Accretion |  | Proceeds at maturity |  | Change in fair value included in OCI* |  | December 31, 2022
U.S. Treasury debt securities |  | — |  |  | 687 |  | 8 |  | — |  |  | (16) |  | 679
Total |  | — |  |  | 687 |  | 8 |  | — |  |  | (16) |  | 679
* Other Comprehensive Income
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The below table details debt securities that were in an unrealized loss position as of December 31, 2023:
| December 31, 2023
| Less than 12 months | More than 12 months | Total
Description | Fair Value | Unrealized Losses | Fair Value | Unrealized Losses | Fair Value | Unrealized Losses
U.S. Treasury Bonds | 429 | (12) | 157 | (1) | 586 | (13)
Total | 429 | (12) | 157 | (1) | 586 | (13)

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- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479106/326-30-50-4 + Details
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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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