ACCOUNTING POLICIES AND RECENTLY ISSUED ACCOUNTING STANDARDS - Acquired IPRD By Type of Transaction (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Acquired IPRD	$ 815	$ 1,159	$ 12,533
Alliance revenues
Property, Plant and Equipment [Line Items]
Alliance (Note 3)	100	730	258
In-license arrangements and other (Note 4)	715	429	659
Asset acquisitions (Note 4)	$ 0	$ 0	$ 11,616