v3.26.1
Fair Value of Financial Instruments - Schedule of Mortgage Loans With Election of Fair Value Option (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Option, Quantitative Disclosures [Line Items]    
Mortgage loans on real estate $ 198 $ 199
Commercial    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Mortgage loans on real estate 198 199
Aggregate contractual principal $ 229 $ 231