Investments - Short-Term and Long-Term Investment Securities (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Investment securities | ||
| Total available-for-sale investment securities | $ 76 | $ 67 |
| Total held-to-maturity investment securities | 292 | 464 |
| Total investment in debt securities | 368 | 531 |
| Commercial paper | ||
| Investment securities | ||
| Total available-for-sale investment securities | 70 | 60 |
| Debt securities | ||
| Investment securities | ||
| Total available-for-sale investment securities | 6 | 7 |
| Corporate bonds | ||
| Investment securities | ||
| Total held-to-maturity investment securities | $ 292 | $ 464 |
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in marketable security. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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