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REVENUE RECOGNITION - Variable Consideration Provisions (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | $ 1,863 | $ 1,813
Current period provisions | 2,710 | 2,713
Payments and credits | (2,602) | (2,546)
Reserve ending balance | 1,971 | 1,980
Discounts and Allowances |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 222 | 190
Current period provisions | 278 | 306
Payments and credits | (303) | (296)
Reserve ending balance | 197 | 200
Returns |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 482 | 575
Current period provisions | 60 | 77
Payments and credits | (107) | (119)
Reserve ending balance | 435 | 533
Rebates |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 944 | 779
Current period provisions | 1,236 | 1,227
Payments and credits | (1,170) | (1,025)
Reserve ending balance | 1,010 | 981
Chargebacks |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 170 | 184
Current period provisions | 1,028 | 993
Payments and credits | (976) | (1,012)
Reserve ending balance | 222 | 165
Distribution Fees |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Reserve beginning balance | 45 | 85
Current period provisions | 108 | 110
Payments and credits | (46) | (94)
Reserve ending balance | $ 107 | $ 101

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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