AVAILABLE-FOR-SALE DEBT SECURITIES AND EQUITY SECURITIES - Summary of Available-for-Sale Debt Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Amortized Cost
Within one year	$ 1,006
After one year through five years	1,325
After five years through ten years	14
After ten years	5
Amortized Cost	2,350	$ 2,325
Fair Value
Within one year	999
After one year through five years	1,308
After five years through ten years	14
After ten years	5
Estimated Fair Value	$ 2,326	$ 2,293