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Reinsurance (Narrative) (Details) $ in Millions						12 Months Ended				21 Months Ended
	Sep. 01, 2023 USD ($)	Apr. 01, 2023 USD ($)	Apr. 01, 2022	Apr. 01, 2015	Jan. 02, 2013 USD ($) policy	Dec. 31, 2023 company	Dec. 31, 2020 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021 counterparty	May 31, 2018 counterparty
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage						69.00%
Number of major reinsurance companies | company						4
Geographic Distribution, Domestic
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance, retention policy, amount retained per life							$ 10	$ 20	$ 30
Hartford Life Business
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, amount retained per event					$ 141,000
Business acquisition number of life insurance policies acquired reinsurance | policy					700,000
Number Of Counterparties | counterparty												2
Prismic Re
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsured Amount	$ 9,000
Deferred Reinsurance Loss	$ (240)
Prismic Re | Structured Settlement Annuity
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage	70.00%
Prismic Re | Coinsurance with funds witheld
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage	90.00%
Prismic Re | Coinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage	10.00%
AuguStar
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsured Amount		$ 10,000
Deferred Reinsurance Gain		$ 309
AuguStar | Separate account liabilities under MODCO
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage		100.00%
AuguStar | General account liabilities under MODCO
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage		100.00%
AuguStar | Variable Annuity
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage		10.00%
Empower | Separate account liabilities under MODCO
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage			100.00%
Empower | General account liabilities under MODCO
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage			100.00%
Union Hamilton | Quote Share Reinsurance for HDI v.3.0 VA Business
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention policy, reinsured risk percentage				50.00%
Reinsurance retention policy, amount retained per event										$ 2,900
Allstate
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Number Of Counterparties | counterparty											2

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 17
-Publisher SEC

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