Contingencies - Narrative (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Reductions in premiums written, net	$ 128

Amount, after premiums ceded to other entities and premiums assumed by the entity, of decrease (increase) in unearned premiums.

No definition available.

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Balance Type:	credit
Period Type:	duration