Insurance Company Subsidiary Operations - Effects of Reinsurance on Premiums Written and Earned (Details) $ in Millions	3 Months Ended
Mar. 31, 2024 USD ($)
Written
Net premiums	$ 20
Earned
Net premiums	10
WNFIC
Written
Direct premiums	190
Ceded premiums	(190)
Earned
Direct premiums	223
Ceded premiums	(223)
Quota Share Captive and Excess of Loss Layer Captive
Written
Assumed Premiums	38
Net premiums	20
Earned
Assumed Premium	28
Net premiums	10
Quota Share Captive
Written
Ceded premiums	(18)
Net premiums	19
Earned
Ceded premiums	(18)
Net premiums	$ 10

Amount of earned premiums assumed from other entities.

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Amount of earned premiums ceded to other entities.

+ References

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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