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STOCKHOLDERS' EQUITY - Narrative (Details) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Equity [Abstract]    
Treasury shares (in shares) 16,521,000 16,348,000
Preferred stock authorized for issuance (in shares) 10,000,000  
Par value of preferred stock authorized for issuance (in dollars per share) $ 1.00