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Investments - Mortgage Loan Modifications (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($) contract	Jun. 30, 2022 USD ($) contract
Mortgage Loan Modifications
Number of contracts | contract	1	1
Recorded investment | $	$ 34.4	$ 34.4
Commercial mortgage loans
Mortgage Loan Modifications
Number of contracts | contract	1	1
Recorded investment | $	$ 34.4	$ 34.4

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34

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- Definition

Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
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-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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