SHARE-BASED COMPENSATION - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Components and classification of share-based compensation expense
Share-based compensation expense	$ 26	$ 31	$ 58	$ 62
Research and development expenses
Components and classification of share-based compensation expense
Share-based compensation expense	3	2	6	5
Selling, general and administrative expenses
Components and classification of share-based compensation expense
Share-based compensation expense	23	29	52	57
Stock options
Components and classification of share-based compensation expense
Share-based compensation expense	3	3	7	7
RSUs
Components and classification of share-based compensation expense
Share-based compensation expense	$ 23	$ 28	$ 51	$ 55