INCOME TAXES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Contingency [Line Items]
Effective income tax rate reconciliation, percent	7.00%	24.30%
Acquired in-process research and development expenses	$ 4,131	$ 481
In-process research and development impairment	2,430	0
Unrecognized tax benefits decrease	400
CymaBay
Income Tax Contingency [Line Items]
Acquired in-process research and development expenses	3,900
Tmunity Therapeutics
Income Tax Contingency [Line Items]
Acquired in-process research and development expenses		$ 244
In Process Research And Development NSCLC
Income Tax Contingency [Line Items]
In-process research and development impairment	$ 2,400