XML 71 R43.htm IDEA: XBRL DOCUMENT v3.25.4
Investments, (Narrative) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]    
Interest-Bearing Deposits, Securities Purchased Under Agreements to Resell, and Federal Funds Sold, Percentage Rated Below Triple-B 0.00% 0.00%
Interest-Bearing Deposits, Securities Purchased Under Agreements to Resell, and Federal Funds Sold, Percentage Unrated 40.00% 34.00%
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Accrued interest receivable Accrued interest receivable
Debt Securities, Available-for-Sale, Excluded Accrued Interest from Amortized Cost [true false] true true
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Accrued interest receivable Accrued interest receivable
Debt Securities, Held-to-Maturity, Excluded Accrued Interest [true false] true true
Financing Receivable, Practical Expedient, Accrued Interest Exclusion [true false] true true
Available-for-Sale Debt Securities and Held-to-Maturity Debt Securities Amortized Cost, Percentage Rated Single-A Or Above 100.00% 100.00%
Securities Purchased under Agreements to Resell, Allowance for Credit Loss $ 0 $ 0
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss 89 86
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss 2 5
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest 0 0
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Excluding Accrued Interest $ 0 $ 0
Interest-Bearing Deposits and Federal Funds Sold    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Accrued interest receivable Accrued interest receivable
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss $ 15 $ 17
Financing Receivable, Allowance for Credit Losses 0 0
Securities Borrowed or Purchased under Agreements to Resell    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Financial Asset, Amortized Cost, Accrued Interest, after Allowance for Credit Loss $ 2 $ 1