Investments - Investments - Concentration of Credit Risk (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Investments, All Other Investments [Abstract]
Fair Value, Concentration of Risk, Investments	$ 0	$ 0

This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-20

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant