ALLIANCES - Financial Information Pertaining to Alliances (SystImmune) (Details) - SystImmune - USD ($) $ in Millions	1 Months Ended	3 Months Ended
Dec. 31, 2023	Mar. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Consideration for contingent development and regulatory approval	$ 7,600
Forecast
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront payments for licensing and alliance arrangements		$ 800

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479402/808-10-50-1

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration