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INCOME TAXES (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 30, 2022 EUR (€)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Income Tax Examination [Line Items]
Provision (benefit) for income taxes		$ 37	$ 71	$ 88	$ 128
Income tax expense (benefit) on ordinary income (loss)				138	132
Income tax expense (benefit) for discrete items				50	5
Current federal tax expense (benefit)				(36)
Income tax expense (benefit) related to changes in uncertain tax positions				12	7
Effective income tax rate reconciliation, nondeductible expense, restructuring charges, amount				11
Income tax provision associated with the filing of certain income tax returns				26
Tax expense associated with stock compensation					$ 3
Valuation allowance against deferred tax assets		2,366		2,366		$ 2,284
Unrecognized tax benefits including interest and penalties		938		938		924
Unrecognized tax benefits related to interest and penalties		88		88		$ 68
Portion of unrecognized tax benefits, if recognized, would reduce the company's effective tax rate		406		406
Estimate of possible loss, income tax examination				64
DURECT
Income Tax Examination [Line Items]
Unrecognized tax benefits		$ 18		$ 18
Luxembourg Inland Revenue | Tax Year 2018 and 2019
Income Tax Examination [Line Items]
Estimate of possible loss, income tax examination | €	€ 271.7

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