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Variable Interest Entities (Tables) | 12 Months Ended
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Dec. 31, 2021
Text Block [Abstract] |
Summary Of Nonconsolidated VIEs Assets And Liabilities |
|  | December 31, 2021 |
|  |  |  |  | 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 |  | $ | 1,261 |  |  | $ | 87 |  |  | $ | 14 |  |  | $ | 40 |  |  | $ | 11 |  |  | $ | 430 |
Consumer asset-backed |  |  | 226 |  |  |  | — |  |  |  | 1 |  |  |  | 1 |  |  |  | 1 |  |  |  | 6 |
Corporate asset-backed |  |  | 503 |  |  |  | — |  |  |  | 3 |  |  |  | 200 |  |  |  | 4 |  |  |  | 11 |
Total global structured finance |  |  | 1,990 |  |  |  | 87 |  |  |  | 18 |  |  |  | 241 |  |  |  | 16 |  |  |  | 447 |
Global public finance |  |  | 834 |  |  |  | — |  |  |  | 6 |  |  |  | — |  |  |  | 5 |  |  |  | — |
Total insurance |  | $ | 2,824 |  |  | $ | 87 |  |  | $ | 24 |  |  | $ | 241 |  |  | $ | 21 |  |  | $ | 447 |
|  | December 31, 2020 |
|  |  |  |  | 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 |  | $ | 1,835 |  |  | $ | 21 |  |  | $ | 16 |  |  | $ | 90 |  |  | $ | 14 |  |  | $ | 482 |
Consumer asset-backed |  |  | 293 |  |  |  | — |  |  |  | 1 |  |  |  | 1 |  |  |  | 1 |  |  |  | 15 |
Corporate asset-backed |  |  | 735 |  |  |  | — |  |  |  | 5 |  |  |  | 364 |  |  |  | 5 |  |  |  | — |
Total global structured finance |  |  | 2,863 |  |  |  | 21 |  |  |  | 22 |  |  |  | 455 |  |  |  | 20 |  |  |  | 497 |
Global public finance |  |  | 1,434 |  |  |  | — |  |  |  | 7 |  |  |  | — |  |  |  | 7 |  |  |  | 2 |
Total insurance |  | $ | 4,297 |  |  | $ | 21 |  |  | $ | 29 |  |  | $ | 455 |  |  | $ | 27 |  |  | $ | 499 |

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