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Investments (Tables) | 12 Months Ended
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Dec. 31, 2025
Debt Securities, Available-for-Sale [Abstract] |
Summary of Investments | The following is a summary of our available-for-sale debt securities recorded within marketable securities and long-term marketable securities on the consolidated balance sheets (in millions):
| December 31, 2025
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Available-for-sale debt securities: |  |  |  |  |  |  |  |
Commercial paper |  | $ | 173 |  |  | $ | — |  |  | $ | — |  |  | $ | 173 |
Corporate notes and bonds |  | 4,759 |  |  | 34 |  |  | — |  |  | 4,793 |
Certificates of deposit |  | 11 |  |  | — |  |  | — |  |  | 11 |
U.S. government and agency securities |  | 1,257 |  |  | 6 |  |  | — |  |  | 1,263 |
Mortgage-backed and asset-backed securities |  | 103 |  |  | — |  |  | (14) |  |  | 89 |
Total available-for-sale debt securities |  | $ | 6,303 |  |  | $ | 40 |  |  | $ | (14) |  |  | $ | 6,329 |
| December 31, 2024
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Available-for-sale debt securities: |  |  |  |  |  |  |  |
Commercial paper |  | $ | 336 |  |  | $ | — |  |  | $ | — |  |  | $ | 336 |
Corporate notes and bonds |  | 4,966 |  |  | 15 |  |  | (5) |  |  | 4,976 |
Certificates of deposit |  | 67 |  |  | — |  |  | — |  |  | 67 |
U.S. government and agency securities |  | 2,103 |  |  | 3 |  |  | (2) |  |  | 2,104 |
Mortgage-backed and asset-backed securities |  | 104 |  |  | — |  |  | (18) |  |  | 86 |
Total available-for-sale debt securities |  | $ | 7,576 |  |  | $ | 18 |  |  | $ | (25) |  |  | $ | 7,569 |
Investments Classified by Contractual Maturity Date | The fair values of available-for-sale debt securities, by remaining contractual maturity, are as follows (in millions):
|  | December 31, 2025
Due within 1 year |  | $ | 2,557 |
Due in 1 year through 5 years |  | 3,683 |
Instruments not due in single maturity |  | 89 |
Total |  | $ | 6,329 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-3 + Details
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