REVENUE - Reconciliation of Gross Product Sales to Net Product Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Gross to Net Adjustments [Line Items]
Total Revenues	$ 48,300	$ 45,006	$ 46,159
Gross to net adjustments	(36,893)	(29,901)	(24,962)
Prior period gross to net adjustment impacted by new accounting pronouncement	(159)	(134)	(229)
Gross product sales
Gross to Net Adjustments [Line Items]
Total Revenues	83,671	73,679	69,633
Net product sales
Gross to Net Adjustments [Line Items]
Total Revenues	46,778	43,778	44,671
Charge-backs and cash discounts
Gross to Net Adjustments [Line Items]
Gross to net adjustments	(11,510)	(9,144)	(7,469)
Medicaid and Medicare rebates
Gross to Net Adjustments [Line Items]
Gross to net adjustments	(16,551)	(13,411)	(11,362)
Other rebates, returns, discounts and adjustments
Gross to Net Adjustments [Line Items]
Gross to net adjustments	$ (8,832)	$ (7,346)	$ (6,131)