REVENUE - Reconciliation of Gross Product Sales to Net Product Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Gross to Net Adjustments [Line Items]
Total Revenues	$ 46,159	$ 46,385	$ 42,518
Gross to net adjustments	(24,962)	(22,842)	(18,695)
Prior period gross to net adjustment impacted by new accounting pronouncement	229	319	106
Gross product sales
Gross to Net Adjustments [Line Items]
Total Revenues	69,633	67,897	60,016
Net product sales
Gross to Net Adjustments [Line Items]
Total Revenues	44,671	45,055	41,321
Charge-backs and cash discounts
Gross to Net Adjustments [Line Items]
Gross to net adjustments	(7,469)	(7,253)	(5,827)
Medicaid and Medicare rebates
Gross to Net Adjustments [Line Items]
Gross to net adjustments	(11,362)	(9,374)	(7,595)
Other rebates, returns, discounts and adjustments
Gross to Net Adjustments [Line Items]
Gross to net adjustments	$ (6,131)	$ (6,215)	$ (5,273)