INVESTMENTS - Information Regarding Pretax Net Gains and Losses From Investments (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	$ 122	$ 307
Credit Losses
Fixed maturity securities available for sale	0	11
Fixed maturity securities held to maturity	0	1
Commercial mortgage and other loans	16	27
Impairment losses	0	(20)
Loan commitments	7	5
Reinsurance recoverable and other	2	(2)
Total credit losses	25	22
Derivatives and Other
Derivative gains (losses)	(466)	(287)
Foreign currency gains (losses)	633	651
Derivatives and other
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	167	364
Equity securities
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	(156)	(68)
Fixed maturity securities
Gain (Loss) on Securities [Line Items]
Gross gains from sales	70	2
Gross losses from sales	(3)	(1)
Foreign currency gains (losses) on sales and redemptions	10	(12)
Net investment gains (losses)	86	(11)
Other investments
Gain (Loss) on Securities [Line Items]
Gross gains from sales	$ 9	$ 0

Foreign currency translation gains (losses) on remeasurement of monetary assets

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