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INVESTMENTS - Balance Sheet Classification (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | $ 1,157 | $ 983
Trading Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | 38 | 39
Available-for-Sale Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | 1,119 | 944
Marketable securities | Trading Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | 38 | 39
Marketable securities | Available-for-Sale Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | 898 | 722
Other noncurrent assets | Trading Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | 0 | 0
Other noncurrent assets | Available-for-Sale Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total debt securities | $ 221 | $ 222

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