Fair Value - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
---|---|---|
Carrying Amount | ||
Assets [Abstract] | ||
Other invested assets, primarily mortgage loans | $ 1,040 | $ 973 |
Liabilities [Abstract] | ||
Short term debt | 853 | 93 |
Long term debt | 8,160 | 8,981 |
Estimated Fair Value | ||
Assets [Abstract] | ||
Other invested assets, primarily mortgage loans | 973 | 1,018 |
Liabilities [Abstract] | ||
Short term debt | 855 | 93 |
Long term debt | 7,621 | 9,781 |
Estimated Fair Value | Level 1 | ||
Assets [Abstract] | ||
Other invested assets, primarily mortgage loans | ||
Liabilities [Abstract] | ||
Short term debt | ||
Long term debt | ||
Estimated Fair Value | Level 2 | ||
Assets [Abstract] | ||
Other invested assets, primarily mortgage loans | ||
Liabilities [Abstract] | ||
Short term debt | 744 | |
Long term debt | 7,035 | 9,170 |
Estimated Fair Value | Level 3 | ||
Assets [Abstract] | ||
Other invested assets, primarily mortgage loans | 973 | 1,018 |
Liabilities [Abstract] | ||
Short term debt | 111 | 93 |
Long term debt | $ 586 | $ 611 |