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Pensions And Other Postretirement Benefits - Contributions and Plan Amendments (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions to defined contribution plans $ 908,000,000 $ 742,000,000 $ 724,000,000
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Revised monthly basic benefit   5.00  
Annual contribution   500  
Increase in pension obligation   791,000,000  
Payment for annuity purchase $ 699,000,000    
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Years of service 30 years    
Employer contributions $ 1,179,000,000 753,000,000 403,000,000
Pension Plan | U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions $ 526,000,000 $ 357,000,000 $ 71,000,000
Expected rate of return on plan assets 6.27% 6.30% 5.38%
Expected rate on return of plan assets 6.50%    
Pension Plan | Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Estimated contributions in next fiscal year $ 120,000,000    
Employer contributions $ 653,000,000 $ 395,000,000 $ 332,000,000
Expected rate of return on plan assets 5.25% 5.65% 4.39%
Other Postretirement Benefits Plan      
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions $ 338,000,000 $ 348,000,000  
Other Postretirement Benefits Plan | U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions $ 285,000,000 $ 295,000,000 $ 335,000,000