Reinsurance (Voluntary Reinsurance) (Details) $ in Millions |
Dec. 31, 2020
USD ($)
|
---|---|
Effects of Reinsurance [Line Items] | |
Total voluntary reinsurance outstanding balance | $ 3,727 |
A- to A++ | |
Effects of Reinsurance [Line Items] | |
Total voluntary reinsurance outstanding balance | 2,820 |
B- to B++ | |
Effects of Reinsurance [Line Items] | |
Total voluntary reinsurance outstanding balance | 904 |
Insolvent | |
Effects of Reinsurance [Line Items] | |
Total voluntary reinsurance outstanding balance | $ 3 |