INVESTMENTS - Information Regarding Pretax Net Gains and Losses From Investments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Gain (Loss) on Securities [Line Items]
Gross gains (losses) from sales and redemptions	$ 14	$ 7	$ 33
Net investment gains (losses)	(572)	1,271	590
Real estate owned impairments	(6)	0	0
Credit Losses
Fixed maturity securities held-to-maturity	0	0	1	[1]
Commercial mortgage and other loans	(192)	(207)	(146)
Impairment losses	0	(55)	0
Loan commitments	0	1	9
Reinsurance recoverables and other	1	5	(3)
Total credit losses	(191)	(256)	(139)
Derivatives and Other
Derivative gains (losses)	(295)	(363)	(531)
Foreign currency gains (losses)	(172)	1,491	972
Fixed maturity securities
Gain (Loss) on Securities [Line Items]
Gross gains from sales	149	80	24
Gross losses from sales	(579)	(634)	(61)
Foreign currency gains (losses)	436	806	204
Debt securities and other investments
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	20	259	200
Equity securities
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	72	140	88
Derivatives and other
Gain (Loss) on Securities [Line Items]
Net investment gains (losses)	$ (467)	$ 1,128	$ 441

[1] Includes an allowance for credit losses of $4 recognized on financial assets accounted for as purchased financial assets with credit deterioration that is not recorded in earnings upon recognition.