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Investments (Tables) | 6 Months Ended
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Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract] |
Pre-tax Gains and Losses for Marketable Securities | Pre-tax (losses)/gains for marketable securities are summarized below:
| Three Months Ended June 30, 2023 |  | Six Months Ended June 30, 2023
| (in millions)
(Loss)/gain on marketable securities sold during the period | $ | (104) |  |  | $ | 293 |
Unrealized (loss)/gain on marketable securities held as of the end of the period | (90) |  |  | 300 |
Dividend income and other | 5 |  |  | 14 |
Total (loss)/gain on marketable securities | $ | (189) |  |  | $ | 607 |

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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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