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Summary of Significant Accounting Policies - Carrying Values Of Investment Securities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of AFS and HTM Securities [Line Items] |  |
Available-for-sale securities | $ 337 | $ 800
Held-to-maturity securities | 177 | 37
Total investment in debt securities | 514 | 837
Time deposits |  |
Schedule of AFS and HTM Securities [Line Items] |  |
Available-for-sale securities | 285 | 790
Commercial paper |  |
Schedule of AFS and HTM Securities [Line Items] |  |
Available-for-sale securities | 39 | 2
Debt securities |  |
Schedule of AFS and HTM Securities [Line Items] |  |
Available-for-sale securities | 13 | 8
Corporate bonds |  |
Schedule of AFS and HTM Securities [Line Items] |  |
Held-to-maturity securities | $ 177 | $ 37

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