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Variable Interest Entities (Tables) | 12 Months Ended
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Dec. 31, 2023
Text Block [Abstract] |
Summary of Nonconsolidated VIEs Assets and Liabilities |
|  | December 31, 2023
|  |  |  | Carrying Value of Assets |  | Carrying Value of Liabilities
In millions |  | Maximum Exposure to Loss |  |  | Investments |  |  | Premiums Receivable |  |  | Insurance Loss Recoverable |  |  | Unearned Premium Revenue |  |  | Loss and Loss Adjustment Expense Reserves |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global structured finance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed residential |  | $ | 853 |  |  | $ | 19 |  |  | $ | 5 |  |  | $ | 23 |  |  | $ | 3 |  |  | $ | 239 |
Consumer asset-backed |  |  | 121 |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 3 |
Corporate asset-backed |  |  | 402 |  |  |  | - |  |  |  | 2 |  |  |  | 7 |  |  |  | 3 |  |  |  | - |
Total global structured finance |  |  | 1,376 |  |  |  | 19 |  |  |  | 7 |  |  |  | 31 |  |  |  | 6 |  |  |  | 242 |
Global public finance |  |  | 218 |  |  |  | - |  |  |  | 4 |  |  |  | - |  |  |  | 4 |  |  |  | - |
Total insurance |  | $ | 1,594 |  |  | $ | 19 |  |  | $ | 11 |  |  | $ | 31 |  |  | $ | 10 |  |  | $ | 242 |
|  | December 31, 2022
|  |  |  | Carrying Value of Assets |  | Carrying Value of Liabilities
In millions |  | Maximum Exposure to Loss |  |  | Investments |  |  | Premiums Receivable |  |  | Insurance Loss Recoverable |  |  | Unearned Premium Revenue |  |  | Loss and Loss Adjustment Expense Reserves |
Insurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global structured finance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed residential |  | $ | 996 |  |  | $ | 75 |  |  | $ | 6 |  |  | $ | 21 |  |  | $ | 4 |  |  | $ | 277 |
Consumer asset-backed |  |  | 164 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | 5 |
Corporate asset-backed |  |  | 450 |  |  |  | - |  |  |  | 3 |  |  |  | 7 |  |  |  | 3 |  |  |  | - |
Total global structured finance |  |  | 1,610 |  |  |  | 75 |  |  |  | 9 |  |  |  | 28 |  |  |  | 8 |  |  |  | 282 |
Global public finance |  |  | 230 |  |  |  | - |  |  |  | 5 |  |  |  | - |  |  |  | 4 |  |  |  | - |
Total insurance |  | $ | 1,840 |  |  | $ | 75 |  |  | $ | 14 |  |  | $ | 28 |  |  | $ | 12 |  |  | $ | 282 |

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