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RESTRUCTURING - Narrative (Details)
$ in Millions
Mar. 31, 2025
USD ($)
2023 Restructuring Plan  
Restructuring Cost and Reserve [Line Items]  
Expected restructuring and related charges $ 2,500
Restructuring and related cost, cost incurred to date 1,200
Celgene and Other Acquisition Plans  
Restructuring Cost and Reserve [Line Items]  
Restructuring and related cost, expected cost remaining $ 200