Investments - Credit Quality of RMLs (Details) - USD ($) $ in Millions |
Jun. 30, 2022 |
Mar. 31, 2022 |
Dec. 31, 2021 |
Jun. 30, 2021 |
Mar. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|---|---|---|
| Financing Receivable, Credit Quality Indicator [Line Items] | ||||||
| Allowance for expected loan loss | $ (35) | $ (32) | $ (31) | $ (34) | $ (36) | $ (39) |
| Residential mortgage loans | ||||||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||||||
| Amortized Cost | $ 2,151 | $ 1,606 | ||||
| % of Total | 100.00% | 100.00% | ||||
| Allowance for expected loan loss | $ (29) | $ (26) | $ (25) | $ (28) | $ (31) | $ (37) |
| Allowance for expected loan loss, percent | 0.00% | 0.00% | ||||
| Total residential mortgage loans | $ 2,122 | $ 1,581 | ||||
| Allowance % of Total | 100.00% | 100.00% | ||||
| Residential mortgage loans | Performing | ||||||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||||||
| Amortized Cost | $ 2,083 | $ 1,533 | ||||
| % of Total | 97.00% | 95.00% | ||||
| Residential mortgage loans | Non-performing | ||||||
| Financing Receivable, Credit Quality Indicator [Line Items] | ||||||
| Amortized Cost | $ 68 | $ 73 | ||||
| % of Total | 3.00% | 5.00% |