v3.26.3
Income Taxes (Unaudited) Effective Income Tax Rate Reconciliation (Details 1) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2026
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Income Tax Disclosure [Abstract]              
Income Tax Expense (Benefit) $ 174   $ 223   $ 403 $ 573  
Federal and foreign income tax expense $ (174)   $ (223)   $ (403) $ (573)  
Effective income tax rate 13.40%   16.90%   11.50% 17.20%  
Change in Federal and foreign income tax expense $ (49)       $ (170)    
Change in Federal and foreign income tax expense, percent (22.00%)       (30.00%)    
Increase (Decrease) in Earnings before Income Taxes $ (25)       $ 168    
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount 112   $ 66   356 $ (169)  
Effective Income Tax Rate Reconciliation, FDDEI, Amount (15)   (16)   (35) (34)  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 21   $ 19   46 53  
Tax expense, nondeductible Goodwill, amount           $ 17  
Income Taxes Receivable $ 1,000       $ 1,000   $ 924
Federal Research Credits              
Income Tax Contingency [Line Items]              
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions       $ 115      
IRS Notice 2026-7 [Member]              
Income Tax Disclosure [Abstract]              
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount   $ 19          
Corporate Alternative Minimum Tax | OBBBA [Member]              
Effect of New Tax Legislation [Line Items]              
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax             $ 187
Corporate Alternative Minimum Tax | IRS Notice 2026-7 [Member]              
Effect of New Tax Legislation [Line Items]              
Increase (Decrease) in Deferred Income Taxes   $ (187)