v3.25.4
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Contingency [Line Items]      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense $ 104 $ 210 $ 177
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 741 $ 637  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 2,800    
Federal [Member]      
Income Tax Contingency [Line Items]      
Tax Credit Carryforward, Description indefinite    
Earliest Tax Year [Member] | State [Member]      
Income Tax Contingency [Line Items]      
Tax Credit Carryforward, Expiration Date Jan. 01, 2026    
Latest Tax Year [Member] | State [Member]      
Income Tax Contingency [Line Items]      
Tax Credit Carryforward, Expiration Date Jan. 01, 2045