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Investments - Schedule of Fair Values by Classification (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Marketable Securities [Line Items] |  |
Total interest-bearing securities | $ 9,237 | $ 10,404
Available-for-sale investments |  |
Marketable Securities [Line Items] |  |
Cash and cash equivalents | 9,237 | 10,404
Total interest-bearing securities | $ 9,237 | $ 10,404

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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