Investments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Schedule of Available for Sale Securities
Short-term investments	$ 6,722	$ 4,173
Accrued investment income	436	423
Fixed income securities
Schedule of Available for Sale Securities
Accrued investment income	$ 400	$ 389

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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