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ACQUISITIONS, DIVESTITURES, LICENSING AND OTHER ARRANGEMENTS - Purchase Price Allocation of RayzeBio Acquisition (Details) - USD ($) $ in Millions	Mar. 31, 2024	Feb. 26, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Goodwill	$ 21,738		$ 21,169
RayzeBio
Business Acquisition [Line Items]
Cash and cash equivalents		$ 501
Other assets		70
Intangible assets		3,700
Deferred income tax asset		81
Deferred income tax liability		(798)
Other liabilities		(109)
Identifiable net assets acquired		3,445
Goodwill		428
Total consideration allocated		$ 3,873