REVENUE RECOGNITION - Variable Consideration Provisions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	$ 1,939	$ 1,910
Current period provisions	1,694	1,371
Payments and credits	(1,589)	(1,453)
Reserve ending balance	2,044	1,828
Discounts and Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	191	188
Current period provisions	155	139
Payments and credits	(175)	(148)
Reserve ending balance	171	179
Returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	380	427
Current period provisions	42	42
Payments and credits	(45)	(40)
Reserve ending balance	377	429
Rebates
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	1,108	1,023
Current period provisions	902	664
Payments and credits	(806)	(729)
Reserve ending balance	1,204	958
Chargebacks
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	216	196
Current period provisions	523	465
Payments and credits	(541)	(487)
Reserve ending balance	198	174
Distribution Fees
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reserve beginning balance	44	76
Current period provisions	72	61
Payments and credits	(22)	(49)
Reserve ending balance	$ 94	$ 88