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Non-marketable Equity Investments (Tables) | 12 Months Ended
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Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
Equity Securities without Readily Determinable Fair Value | The following table summarizes our non-marketable equity investments under measurement alternative and equity method (in millions):
| December 31,
| 2025 |  | 2024
Initial cost | $ | 20,271 |  |  | $ | 6,342 |
Cumulative upward adjustments | 429 |  |  | 300 |
Cumulative impairment/downward adjustments | (624) |  |  | (624) |
Non-marketable equity investments under measurement alternative | 20,076 |  |  | 6,018 |
Non-marketable equity investments under equity method | 7,448 |  |  | 52 |
Total carrying value of non-marketable equity investments | $ | 27,524 |  |  | $ | 6,070 |

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