Reinsurance - GMIB Reinsurers (Details) - GMIB - USD ($) $ in Millions |
12 Months Ended | |
---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
Ceded Credit Risk [Line Items] | ||
GMIB recoverables | $ 758 | $ 713 |
Berkshire | ||
Ceded Credit Risk [Line Items] | ||
GMIB recoverables | $ 353 | 332 |
Berkshire | Secured | GMIB Assets | ||
Ceded Credit Risk [Line Items] | ||
Concentration percentage | 100.00% | |
Sun Life Assurance Company of Canada | ||
Ceded Credit Risk [Line Items] | ||
GMIB recoverables | $ 215 | 202 |
Liberty Re (Bermuda) Ltd. | ||
Ceded Credit Risk [Line Items] | ||
GMIB recoverables | $ 190 | $ 179 |
Liberty Re (Bermuda) Ltd. | Secured | GMIB Assets | ||
Ceded Credit Risk [Line Items] | ||
Concentration percentage | 100.00% |