v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Notes Receivable from Participants (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
AbbVie Savings Plan    
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Allowance for credit losses $ 0 $ 0
AbbVie Puerto Rico Savings Plan    
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES    
Allowance for credit losses $ 0 $ 0