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OTHER ASSETS - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 29, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]        
Income (loss) from equity method investments   $ (35) $ (61) $ (14)
Equity investments without readily determinable fair value   28 25  
Cumulative impairments   7    
Impairment to carrying amount   7 10  
Unfunded commitments related to private equity investment funds   32 $ 29  
YES Network        
Schedule of Equity Method Investments [Line Items]        
Payments to acquire equity method investments $ 346      
Income (loss) from equity method investments   $ 16