DIVENSTITURES, LICENSING AND OTHER ARRANGEMENTS - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2022	Mar. 31, 2022	Mar. 31, 2021
Licensing Arrangements [Line Items]
Proceeds from divestiture of businesses, net of cash divested		$ 397	$ 180
Divestiture gains		211	0
Subsequent Event
Licensing Arrangements [Line Items]
Payment to extinguish future royalty obligation	$ 295
Immatics
Licensing Arrangements [Line Items]
Upfront payments		150
Contingent and regulatory milestone payments		770
Mature Products and Other
Licensing Arrangements [Line Items]
Proceeds from divestiture of businesses, net of cash divested		225	16
Divestiture gains		$ 211	$ 0