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v3.22.2.2

General (Narrative) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Accounting Standards Update [Extensible Enumeration] | Accounting Standards Update 2018-12 [Member] |
Pro Forma | Accumulated Other Comprehensive (Loss) Income | Cumulative Effect, Period of Adoption, Adjustment |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Decrease in accumulated other comprehensive income |  | $ 2,300
Loews | CNAF Consolidated |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Noncontrolling interest, ownership percentage by parent (as a percent) | 90.00% |

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