INVESTMENTS - Fixed Maturities Available-for-sale (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	$ 2,008	$ 288
Less than 12 months, gross unrealized losses	348	5
12 months or longer, fair value	218	113
12 Months or Longer, gross unrealized Losses	91	6
Fair value	2,226	401
Gross unrealized losses	439	11
Corporate
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	1,854	243
Less than 12 months, gross unrealized losses	320	4
12 months or longer, fair value	212	111
12 Months or Longer, gross unrealized Losses	89	6
Fair value	2,066	354
Gross unrealized losses	409	10
U.S. Treasury, government and agency
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	14	45
Less than 12 months, gross unrealized losses	1	1
12 months or longer, fair value	0	2
12 Months or Longer, gross unrealized Losses	0	0
Fair value	14	47
Gross unrealized losses	1	1
States and political subdivisions
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	30	0
Less than 12 months, gross unrealized losses	8	0
12 months or longer, fair value	1	0
12 Months or Longer, gross unrealized Losses	1	0
Fair value	31	0
Gross unrealized losses	9	0
Asset-backed
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	49	0
Less than 12 months, gross unrealized losses	4	0
12 months or longer, fair value	1	0
12 Months or Longer, gross unrealized Losses	0	0
Fair value	50	0
Gross unrealized losses	4	0
Commercial mortgage-backed
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Less than 12 months, fair value	61	0
Less than 12 months, gross unrealized losses	15	0
12 months or longer, fair value	4	0
12 Months or Longer, gross unrealized Losses	1	0
Fair value	65	0
Gross unrealized losses	$ 16	$ 0

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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