INVESTMENTS - Information Regarding Changes in Unrealized Gains and Losses from Investments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	$ (13,056)	$ (960)	$ 2,399
Fixed maturity securities | Available-for-sale securities
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	$ (13,056)	$ (960)	$ 2,399