v3.26.1
Investments - Schedule of Mortgage Loan Portfolio, with Fair Value Option Loans (Details) - Mortgage loans - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Option, Quantitative Disclosures [Line Items]    
Unpaid principal balance $ 97,844 $ 96,269
Mark to fair value (1,179) (725)
Fair value 96,665 95,544
Mortgage loans 96,665 95,544
Commercial mortgage loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Unpaid principal balance 41,719 40,656
Mark to fair value (1,705) (1,585)
Fair value 40,014 39,071
Residential mortgage loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Unpaid principal balance 56,125 55,613
Mark to fair value 526 860
Fair value 56,651 56,473
Commercial mortgage loans | Commercial mortgage loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Unpaid principal balance 39,974 38,869
Commercial mortgage loans under development | Commercial mortgage loans    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Unpaid principal balance $ 1,745 $ 1,787