Fair Value Disclosures - Summary of Information Related to Bank Loans and Borrowings of Consolidated CLO Recorded within Investments and Other Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value Option Quantitative Disclosures Line Items
Aggregate principal amounts outstanding	$ 7,972
CLO Bank Loans Member
Fair Value Option Quantitative Disclosures Line Items
Aggregate principal amounts outstanding	203	$ 238
Fair value	194	234
Aggregate unpaid principal balance in excess of (less than) fair value	9	4
CLO Borrowings Member
Fair Value Option Quantitative Disclosures Line Items
Aggregate principal amounts outstanding	190	245
Fair value	$ 180	$ 245

Loans receivable principal amount.

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Face (par) amount of debt instrument at time of issuance.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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