GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Other intangible assets
Accumulated amortization	$ (34,530)	$ (33,133)
Other intangible assets	33,569	35,859
Total	68,099	68,992
IPRD
Other intangible assets
Other intangible assets	6,540	6,560
IPRD	6,540	6,560
Licenses
Other intangible assets
Gross carrying amounts	400	400
Accumulated amortization	(136)	(128)
Other intangible assets	$ 264	272
Licenses | Minimum
Other intangible assets
Estimated useful lives (in years)	5 years
Licenses | Maximum
Other intangible assets
Estimated useful lives (in years)	15 years
Acquired marketed product rights
Other intangible assets
Gross carrying amounts	$ 59,576	60,477
Accumulated amortization	(33,297)	(31,949)
Other intangible assets	$ 26,279	28,528
Acquired marketed product rights | Minimum
Other intangible assets
Estimated useful lives (in years)	3 years
Acquired marketed product rights | Maximum
Other intangible assets
Estimated useful lives (in years)	15 years
Capitalized software
Other intangible assets
Gross carrying amounts	$ 1,583	1,555
Accumulated amortization	(1,097)	(1,056)
Other intangible assets	$ 486	$ 499
Capitalized software | Minimum
Other intangible assets
Estimated useful lives (in years)	3 years
Capitalized software | Maximum
Other intangible assets
Estimated useful lives (in years)	10 years