For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Amount of the write-down or write-off of a receivable from a reinsurer.

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- Definition

Amount of increase in allowance for credit loss on reinsurance recoverable, from recovery.

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- Definition

Amount of allowance for credit loss on reinsurance recoverable.

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- Definition

Amount before valuation allowance recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

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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

No definition available.

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REINSURANCE - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Reinsurance Retention Policy [Line Items]
Reinsurance receivables, allowance for credit loss	$ 90	$ 90	$ 94
Reinsurance recoverable, write-offs	0	0
Reinsurance recoveries	0	$ 0
Gross reinsurance receivables	$ 4,600
Reinsurance Receivables
Reinsurance Retention Policy [Line Items]
Concentration risk percentage	13.00%
Reinsurance Receivables \| AM Best Rating
Reinsurance Retention Policy [Line Items]
Concentration risk percentage	76.00%
Reinsurance Receivables \| AM Best, A+ Rating
Reinsurance Retention Policy [Line Items]
Concentration risk percentage	75.00%
Reinsurance Receivables \| AM Best, A Rating
Reinsurance Retention Policy [Line Items]
Concentration risk percentage	13.00%
Reinsurance Receivables \| AM Best, A- Rating
Reinsurance Retention Policy [Line Items]
Concentration risk percentage	11.00%