Goodwill and Other Intangible Assets - Schedule of intangible assets (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Indefinite-Lived Intangible Assets [Roll Forward] | |||
| Beginning balance | $ 18 | $ 31 | $ 35 |
| Dispositions | 0 | (5) | 0 |
| Amortization | (4) | (7) | (6) |
| Other | (2) | (1) | 2 |
| Ending balance | 12 | 18 | 31 |
| Life Insurance | |||
| Indefinite-Lived Intangible Assets [Roll Forward] | |||
| Beginning balance | 18 | 23 | 24 |
| Dispositions | 0 | 0 | 0 |
| Amortization | (4) | (4) | (4) |
| Other | (2) | (1) | 3 |
| Ending balance | 12 | 18 | 23 |
| Corporate & Other | |||
| Indefinite-Lived Intangible Assets [Roll Forward] | |||
| Beginning balance | 0 | 8 | 11 |
| Dispositions | 0 | (5) | 0 |
| Amortization | 0 | (3) | (2) |
| Other | 0 | 0 | (1) |
| Ending balance | $ 0 | $ 0 | $ 8 |