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AVAILABLE-FOR-SALE DEBT SECURITIES AND EQUITY SECURITIES - Additional Information (Details)
3 Months Ended
Mar. 31, 2022
USD ($)
position
Mar. 31, 2021
USD ($)
position
Dec. 31, 2021
USD ($)
Debt Securities, Available-for-sale [Abstract]      
Number of positions held in an unrealized loss position | position 618 203  
Impairment recognized $ 0 $ 0  
Equity investments and equity method investments without readily determinable fair values 375,000,000   $ 338,000,000
Net unrealized loss on investment of equity securities $ 96,000,000 $ 351,000,000