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Investments - Schedule of Credit Losses Recognized in Net Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | $ (20) | $ (6) | $ (69) | $ (30)
Total credit losses by asset type | (19) | (6) | (68) | (30)
Commitments to fund commercial mortgage loans and bank loans | (1) | 0 | (1) | 0
Fixed income securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (7) | (4) | (23) | (8)
Corporate |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (7) | (2) | (23) | (6)
ABS |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | 0 | (2) | 0 | (2)
Mortgage loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | (1) | 1 | (4) | 0
Limited partnership interests |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | (9) | (1) | (25) | (4)
Bank loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | $ (2) | $ (2) | $ (16) | $ (18)

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