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Insurance Company Subsidiary Operations - Effects of Reinsurance on Premiums Written and Earned (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Written
Net premiums	$ 24
Earned
Net premiums	19
WNFIC
Written
Direct premiums	210
Ceded premiums	(210)
Earned
Direct premiums	250
Ceded premiums	(250)
Quota Share Captive and Excess of Loss Layer Captive
Written
Assumed premiums	41
Net premiums	24
Earned
Assumed Premium	36
Net premiums	19
Quota Share Captive
Written
Ceded premiums	(17)
Net premiums	23
Earned
Ceded premiums	(17)
Net premiums	$ 18

X

- Definition

Amount of earned premiums assumed from other entities.

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