REVENUE - Reconciliation of Gross Product Sales to Net Product Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Gross to Net Adjustments [Line Items]
Total Revenues	$ 11,218	$ 11,624	$ 34,753	$ 34,400
Gross to Net Adjustments	(6,793)	(6,092)	(17,949)	(16,230)
Adjustments for provisions for product sales made in prior periods	10	10	207	282
Gross product sales
Gross to Net Adjustments [Line Items]
Total Revenues	17,606	17,335	51,555	49,676
Net product sales
Gross to Net Adjustments [Line Items]
Total Revenues	10,813	11,243	33,606	33,446
Charge-backs and cash discounts
Gross to Net Adjustments [Line Items]
Gross to Net Adjustments	(1,907)	(1,908)	(5,420)	(5,214)
Medicaid and Medicare rebates
Gross to Net Adjustments [Line Items]
Gross to Net Adjustments	(3,295)	(2,625)	(8,003)	(6,482)
Other rebates, returns, discounts and adjustments
Gross to Net Adjustments [Line Items]
Gross to Net Adjustments	$ (1,591)	$ (1,559)	$ (4,526)	$ (4,534)