Reserve for Future Policy Benefits and Contractholder Funds - Schedule of actual and expected experience for mortality, morbidity and lapses (Details) - Actual to expected lapses	Jun. 30, 2023	Jun. 30, 2022
Accident and health insurance
Liability for Future Policy Benefit, Activity [Line Items]
Actual to expected lapses	102.00%	104.00%
Traditional life
Liability for Future Policy Benefit, Activity [Line Items]
Actual to expected lapses	93.00%	91.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 29E
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480046/944-40-55-29E

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480081/944-40-50-6

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