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Investments - OTTI losses by asset type (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | $ (13) | $ 12 | $ (24) | $ 14
Total credit losses by asset type | (13) | 12 | (24) | 14
Commitments to fund commercial mortgage loans and bank loans | 0 | 0 | 0 | 0
Fixed income securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (4) | (1) | (4) | 1
Corporate |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (4) | (1) | (4) | 0
ABS |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | 0 | 0 | 0 | 1
Mortgage loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 0 | 11 | (1) | 17
Limited partnership interests |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 3 | 0 | 3 | 0
Bank loans, net |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | (6) | 3 | (16) | (3)
Agent loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | $ 0 | $ (1) | $ 0 | $ (1)

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