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Income Taxes - Significant Portions of Deferred Tax Liabilities and Deferred Tax Assets (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Schedule of Deferred Income Tax Assets and Liabilities [Line Items] |  |
Deferred Tax Assets, Net of Valuation Allowance | $ 70 | $ 106
Deferred tax assets: |  |
Net operating loss and capital carryforward | 725 | 736
Deferred Tax Asset, Interest Carryforward | 66 | 50
Deferred Tax Assets, Investments | 6 |
Loss reserves | 38 | 180
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | 8 | 7
Deferred Tax Assets, Debentures | 15 | 7
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation | 6 | 8
Other | 4 | 4
Sub total deferred tax assets | 867 | 993
Valuation allowance | 796 | 886
Insurance intangible | 56 | 67
Variable interest entities | 4 | 15
Investments |  | 14
Unearned premiums and credit fees | 24 | 32
Other | 1 | 6
Deferred Tax Liabilities, Gross | 85 | 134
Deferred Tax Liabilities, Net | $ 15 | $ 28

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