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Future Policy Benefits -Gross Premium Income and Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Liability for Future Policy Benefit, Activity [Line Items]
Gross premium income	$ 301	$ 568
Interest expense	48	32
Traditional Life
Liability for Future Policy Benefit, Activity [Line Items]
Gross premium income	32	36
Interest expense	9	10
Immediate Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Gross premium income	6	7
Interest expense	16	15
PRT
Liability for Future Policy Benefit, Activity [Line Items]
Gross premium income	263	525
Interest expense	$ 23	$ 7

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Amount of gross premium income recognized for liability for future policy benefit.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 6
-Subparagraph (b)(3)
-URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439

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