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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES , REVENUE RECOGNITION AND ADVERTISING COSTS (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accounting Policies [Abstract]    
Term of subscription-based license agreements 1 year  
Deferred sales commission, amortization period 3 years  
Advertising expense $ 53 $ 33