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REVENUE RECOGNITION - Variable Consideration Provisions (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | $ 2,237 | $ 1,939
Current period provisions | 3,535 | 3,365
Payments and credits | (3,589) | (3,172)
Reserve ending balance | 2,183 | 2,132
Discounts and Allowances |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 170 | 191
Current period provisions | 348 | 325
Payments and credits | (356) | (339)
Reserve ending balance | 162 | 177
Returns |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 372 | 380
Current period provisions | 68 | 89
Payments and credits | (74) | (79)
Reserve ending balance | 366 | 390
Rebates |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 1,421 | 1,108
Current period provisions | 2,072 | 1,802
Payments and credits | (2,087) | (1,607)
Reserve ending balance | 1,406 | 1,303
Chargebacks |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 189 | 216
Current period provisions | 887 | 1,002
Payments and credits | (912) | (1,039)
Reserve ending balance | 164 | 179
Distribution Fees |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 85 | 44
Current period provisions | 160 | 147
Payments and credits | (160) | (108)
Reserve ending balance | $ 85 | $ 83

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