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INVESTMENTS - Schedule of Components of Net Investment Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	$ 546	$ 504	$ 1,577	$ 1,506
Funds held interest income (expense)	7	5	22	20
Future policy benefit reserve income (expense)	0	1	0	0
Gross investment income	553	510	1,598	1,525
Investment expenses	13	13	35	44
Net investment income	540	496	1,563	1,481
Fixed maturities
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	390	378	1,172	1,099
Equity securities
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	1	1	3	3
Short-term investments and cash
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	43	54	125	135
Limited partnerships
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	76	36	189	183
Other
Debt Securities, Available-for-Sale [Line Items]
Gross investment income before adjustments	$ 36	$ 36	$ 87	$ 85

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Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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