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OTHER FINANCIAL INFORMATION - Reclassification out of Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Product sales | $ 7,769 | $ 7,545 | $ 21,518 | $ 21,185
Other (income) expense, net | (569) | (306) | (449) | (41)
Income tax expense (benefit) | 589 | (297) | 1,391 | (174)
Reclassification out of Accumulated Other Comprehensive Income | Net (loss) gain related to cash flow hedges |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Product sales | (15) | 14 | 25 | 19
Reclassification out of Accumulated Other Comprehensive Income | Net loss related to available-for-sale debt securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Other (income) expense, net | 0 | 0 | 0 | 5
Reclassification out of Accumulated Other Comprehensive Income | Income tax (benefit) expense |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Income tax expense (benefit) | $ (2) | $ 2 | $ 3 | $ 2

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