v3.26.3
Fair Value - Fair Value Option (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) $ (2,191) $ 285 $ (3,724) $ 2,745  
Mortgage loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Unpaid principal balance 106,438   106,438   $ 96,269
Mark to fair value (3,402)   (3,402)   (725)
Fair value 103,036   103,036   95,544
Fair Value, Option, Credit Risk, Gains (Losses) on Assets (33) (21) (77) (44)  
Residential mortgage loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Fair value option, loans, 90 days or more past due 951   951   741
Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status 1,763   1,763   678
Unpaid principal balance 2,060   2,060   826
Fair value 1,834   1,834   741
Fair Value, Option, Loans Held as Assets, Aggregate Difference (226)   (226)   (85)
Residential mortgage loans | Loans Insured or Guaranteed by US Government Authorities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Fair value option, loans, 90 days or more past due 71   71   63
Fair Value Option, Other Eligible Items          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) 12 14 16 (3)  
Commercial mortgage loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Fair value option, loans, 90 days or more past due 399   399   274
Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status 957   957   655
Unpaid principal balance 1,393   1,393   992
Fair value 974   974   655
Fair Value, Option, Loans Held as Assets, Aggregate Difference (419)   (419)   $ (337)
Income Statement Location [Axis]: us-gaap:GainLossOnInvestments | Mortgage loans          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) (1,910) 197 (3,285) 2,130  
Income Statement Location [Axis]: us-gaap:GainLossOnInvestments | Trading securities          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) (373) 43 (563) 379  
Income Statement Location [Axis]: us-gaap:NetInvestmentIncome | Investment funds          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) 11 36 8 239  
Income Statement Location [Axis]: us-gaap:PolicyholderBenefitsAndClaimsIncurredNet | Future policy benefits          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Total gains (losses) $ 69 $ (5) $ 100 $ 0