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Income Taxes - Summary of Operating Loss and Credit Carryovers (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryovers, Tax-Effected | $ 109 |
Valuation allowance, Operating loss and credit carryovers | 98 | $ 79
Operating Loss and Credit Carryovers | 11 |
Federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryovers, Gross | 34 |
Net operating loss carryovers, Tax-Effected | $ 7 |
Net operating loss, Expiration | 2032 |
Valuation allowance, Operating loss and credit carryovers | $ 1 |
Operating Loss and Credit Carryovers | 6 |
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryovers, Gross | 559 |
Net operating loss carryovers, Tax-Effected | $ 37 |
Net operating loss, Expiration | 2023 |
Valuation allowance, Operating loss and credit carryovers | $ 32 |
Operating Loss and Credit Carryovers | 5 |
State IRC § 163(j) disallowed interest expense carryovers, Gross | 4,173 |
State IRC § 163(j) disallowed interest expense carryovers, Tax-Effected | $ 65 |
State IRC § 163(j) disallowed interest expense carryovers, Expiration | Indefinite |
State IRC § 163(j) disallowed interest expense carryovers, Corresponding Valuation Allowance | $ 65 |
State IRC § 163(j) disallowed interest expense carryovers, Operating Loss and Credit carryovers | $ 0 |

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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