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INVESTMENTS - Balance Sheet Classification (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | $ 1,676 | $ 1,175
Trading Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | 45 | 41
Available-for-Sale Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | 1,631 | 1,134
Marketable securities | Trading Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | 45 | 41
Marketable securities | Available-for-Sale Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | 1,260 | 914
Other noncurrent assets | Trading Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | 0 | 0
Other noncurrent assets | Available-for-Sale Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Total debt securities | $ 371 | $ 220

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