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v3.23.1

INVESTMENTS - Debt Securities (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Cost |  |
Trading securities | $ 43 | $ 43
Available-for-sale securities | 1,027 | 979
Total debt securities | 1,070 | 1,022
Gains |  |
Trading securities | 0 | 0
Available-for-sale securities | 23 | 26
Total debt securities | 23 | 26
Losses |  |
Trading securities | (4) | (4)
Available-for-sale securities | (47) | (61)
Total debt securities | (51) | (65)
Estimated Fair Value |  |
Trading securities | 39 | 39
Available-for-sale securities | 1,003 | 944
Total debt securities | $ 1,042 | $ 983

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