v3.25.2
DEBT - Convertible Senior Notes (Details) - Convertible Debt - 2026 Notes
$ / shares in Units, ¥ in Millions
1 Months Ended 12 Months Ended
May 31, 2020
USD ($)
$ / shares
Dec. 31, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
DEBT        
Aggregate principal amount $ 500,000,000      
Fixed interest rate (as a percent) 3.00%      
Proceeds from issuance of debt   ¥ 3,499 $ 493,000,000  
Debt issuance costs   ¥ 49   $ 7,000,000
Initial conversion price | $ / shares $ 23.971      
Increment used for debt conversion $ 1,000      
Repurchase price as a percentage of principal amount 100.00%      
Initial conversion rate per ADS 41.72