Debt - Debt Cash Tender Offers (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Debt Instrument [Line Items] | |||
| Repayments of long term debt | $ 0 | $ 568 | $ 11 |
| AIGLH junior subordinated debentures | |||
| Debt Instrument [Line Items] | |||
| Extinguishment of debt | 216 | ||
| Repayments of long term debt | $ 312 | ||