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Fair Value of Financial Instruments - Schedule of Mortgage Loans With Election of Fair Value Option (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Fair value | $ 232 | $ 232
Commercial |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Fair value | 232 | 232
Aggregate contractual principal | $ 265 | $ 263

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