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Investments (Tables) | 12 Months Ended
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Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Schedule of Cash and Cash Equivalents, Debt Securities, Available-for-Sale | The following tables summarize the Company’s investments by major security type (in millions):
| December 31, 2022
| Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Total Estimated Fair Value
Short-term investments |  |  |  |
Debt securities: |  |  |  |
Certificates of deposit | $ | 573 |  | $ | — |  | $ | — |  | $ | 573 |
Government bonds | 83 |  | — |  | — |  | 83 |
Commercial paper | 574 |  | — |  | — |  | 574 |
Corporate debt securities | 965 |  | 1 |  | (7) |  | 959 |
Mortgage-backed and asset-backed securities | 37 |  | — |  | (3) |  | 34 |
Total debt securities | 2,232 |  | 1 |  | (10) |  | 2,223 |
Time deposits | 20 |  | — |  | — |  | 20 |
Equity investments (1) | 1 |  | — |  | — |  | 1 |
Total short-term investments | $ | 2,253 |  | $ | 1 |  | $ | (10) |  | $ | 2,244 |
Long-term investments (2) |  |  |  |
Debt securities: |  |  |  |
Corporate debt securities | $ | 13 |  | $ | — |  | $ | (9) |  | $ | 4 |
| December 31, 2023
| Amortized Cost | Gross Unrealized Gains | Gross Unrealized Losses | Total Estimated Fair Value
Short-term investments |  |  |  |
Debt securities: |  |  |  |
Certificates of deposit | $ | 172 |  | $ | — |  | $ | — |  | $ | 172 |
Government bonds | 332 |  | 1 |  | — |  | 333 |
Commercial paper | 366 |  | — |  | — |  | 366 |
Corporate debt securities | 1,490 |  | 4 |  | (3) |  | 1,491 |
Mortgage-backed and asset-backed securities | 148 |  | 1 |  | (4) |  | 145 |
Total debt securities | 2,508 |  | 6 |  | (7) |  | 2,507 |
Time deposits | 690 |  | — |  | — |  | 690 |
Total short-term investments | $ | 3,198 |  | $ | 6 |  | $ | (7) |  | $ | 3,197 |
Long-term investments (2) |  |  |  |
Debt securities: |  |  |  |
Corporate debt securities | $ | 13 |  | $ | — |  | $ | (9) |  | $ | 4 |
(1)Unrealized gains (losses) on equity investments were not material for the years ended December 31, 2022 and 2023. (2)Classified within other assets, noncurrent on the consolidated balance sheets.
Schedule of Contractual Maturities of the Available-for-Sale Debt Securities | The following table summarizes the contractual maturities of the Company’s available-for-sale debt securities (in millions):
| December 31, 2023
| Amortized Cost | Estimated Fair Value
Due within one year | $ | 1,406 |  | $ | 1,406 |
Due within one to five years | 1,027 |  | 1,020 |
Due beyond five years | 88 |  | 85 |
Total | $ | 2,521 |  | $ | 2,511 |

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- Definition Schedule Of Cash And Cash Equivalents, Debt Securities, Available-For-Sale, And Equity Securities + References No definition available. + Details
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