Consolidated Statements of Earnings (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Remeasurement gain (loss), deferred profit liability for limited-payment contracts	$ 22	$ (41)	$ 22	$ (42)

Amount of remeasurement gain (loss) on liability for future policy benefit for limited-payment contract from application of revised benefit ratio as of contract issue date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480112/944-40-45-4

Name:	us-gaap_LiabilityForFuturePolicyBenefitRemeasurementGainLossLimitedPaymentContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration