Reserve for Future Policy Benefits and Contractholder Funds - Reconciliation of the net incurred and paid claims development (Details) - Accident and health insurance $ in Millions	Dec. 31, 2021 USD ($)
Reserve for life-contingent benefits:
Net outstanding liabilities	$ 1,119
Gross reserve for future policy benefits	1,273
Group and individual accident and health short-duration contracts
Reserve for life-contingent benefits:
Net outstanding liabilities	161
Recoverables	38
Other accident and health short-duration contracts
Reserve for life-contingent benefits:
Net outstanding liabilities	28
Recoverables	0
Long duration accident and health insurance
Reserve for life-contingent benefits:
Net outstanding liabilities	617
Long duration traditional life insurance and other
Reserve for life-contingent benefits:
Net outstanding liabilities	313
Insurance lines other than short-duration
Reserve for life-contingent benefits:
Recoverables	$ 116

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

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+ References

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to the ceding insurer but not yet paid and amounts expected for incurred losses and settlement expenses, which have not yet been reported to the ceding insurer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Undiscounted amount, after reinsurance, of the liability for unpaid claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense.

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