INCOME TAXES - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Valuation Allowance [Line Items]
Nondeductible R&D charges		$ 2,538	$ 0	$ 0
Effective income tax rate reconciliation, foreign income tax rate differential, effect on net operating loss carryforwards, amount			123
Effective income tax rate reconciliation, deduction, impairment of subsidiary investments		0	656	0
Effective income tax rate reconciliation, valuation allowance cost (reversal), unrealized equity investment loss		193
Effective income tax rate reconciliation, tax settlement, amount		$ 644	$ 89	$ 522
Puerto Rico tax rate		3.60%	(10.10%)	(5.40%)
Valuation allowance		$ 929	$ 764
Income tax payments		3,900	4,300	$ 5,400
Transition taxes paid		799	$ 567	$ 339
Transition tax due 2025		991
Transition tax due 2026		244
Karuna
Valuation Allowance [Line Items]
Effective income tax rate reconciliation, nondeductible expense, amount		12,100
Foreign Net Operating Loss and Tax Credit Carryforwards
Valuation Allowance [Line Items]
Valuation allowance		294
State Net Operating Loss and Tax Credit Carryforwards
Valuation Allowance [Line Items]
Valuation allowance		453
SEC Schedule, 12-09, Valuation Allowance, Other Tax Carryforward
Valuation Allowance [Line Items]
Valuation allowance		182
PUERTO RICO
Valuation Allowance [Line Items]
Puerto Rico tax rate	10.50%
Domestic Tax Jurisdiction
Valuation Allowance [Line Items]
Operating loss carryforwards		2,000
Minimum
Valuation Allowance [Line Items]
Reasonably possible decrease in unrecognized tax benefits		360
Maximum
Valuation Allowance [Line Items]
Reasonably possible decrease in unrecognized tax benefits		$ 400