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Investments - Schedule of Credit Losses Recognized in Net Income (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Other-than-temporary impairment losses by asset type |  |  |
Commitments to fund line of credit, commercial mortgage loans and bank loans | $ (15) | $ 1 | $ (1)
Total | (110) | (146) | (99)
Fixed income securities |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (5) | (3) | (22)
Municipal |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | 0 | (2) | 0
Corporate |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (4) | (1) | (24)
ABS |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (1) | 0 | 2
Mortgage loans |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (2) | (1) | (4)
Limited partnership interests |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (12) | (24) | (25)
Bank loans, net |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (12) | 6 | (18)
Real estate |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | (12) | (2) | (29)
Other assets |  |  |
Other-than-temporary impairment losses by asset type |  |  |
Total credit losses by asset type | $ (52) | $ (123) | $ 0

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