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Interest Income (Expense), Net - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Net Investment Income [Line Items] |  |  |
Income | $ 71,000,000 | $ 13,000,000 | $ 34,000,000
Interest expense on borrowings and banking fees | 13,000,000 | 42,000,000 | 54,000,000
Capitalized borrowing cost | 0 | 0 | 0
U.S. Treasury Bonds [Member] |  |  |
Net Investment Income [Line Items] |  |  |
Interest income (expense), net | $ 1,000,000 | 1,000,000 | 3,000,000
Senior Unsecured Convertible Bonds |  |  |
Net Investment Income [Line Items] |  |  |
Non-cash accretion expense |  | $ 34,000,000 | $ 42,000,000

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