Investments - Schedule of Fair Values by Classification (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Total available-for-sale investments	$ 11,486	$ 10,404
Available-for-sale investments
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	11,486	10,404
Total available-for-sale investments	$ 11,486	$ 10,404

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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