v3.25.4
Pension And Other Postretirement Benefits (Change In Plan Assets Of Pension And Other Postretirement Benefits) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Change in plan assets    
Medicare subsidy receipts   $ 10
Other Postretirement Benefits    
Change in plan assets    
Fair value at January 1 $ 364 371
Actual return on plan assets 40 20
Company contribution 29 24
Benefits paid (49) (51)
Fair value at December 31 384 364
Pension Benefits - U.S.    
Change in plan assets    
Fair value at January 1 11,244  
Fair value at December 31 11,038 11,244
Pension Benefits - U.S. | Pension Plans, Defined Benefit    
Change in plan assets    
Fair value at January 1 11,244 11,367
Actual return on plan assets 1,189 286
Company contribution 250 300
Benefits paid (878) (709)
Other (767) 0
Fair value at December 31 11,038 11,244
Payments for group annuity contract 767  
Pension Benefits - Non-U.S.    
Change in plan assets    
Fair value at January 1 17,378  
Fair value at December 31 18,148 17,378
Pension Benefits - Non-U.S. | Pension Plans, Defined Benefit    
Change in plan assets    
Fair value at January 1 17,378 18,431
Actual return on plan assets 680 862
Foreign exchange rate changes 1,364 (1,051)
Company contribution 307 288
Benefits paid (940) (931)
Other (641) (221)
Fair value at December 31 18,148 $ 17,378
Benefit obligation divesture 1,059  
Plan asset divestment $ 642