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Pension And Other Postretirement Benefits (Expected Contribution Pension Benefits And Other Postretirement Benefits) (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Gross Other Post Retirement Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benefits payments expected in 2025 $ 356
Benefits payments expected in 2026 349
Benefits payments expected in 2027 346
Benefits payments expected in 2028 344
Benefits payments expected in 2029 343
Benefits payments expected in 2030-2034 1,752
Other Postretirement Benefits Medicare Subsidy Receipt [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benefits payments expected in 2025 1
Benefits payments expected in 2026 1
Benefits payments expected in 2027 1
Benefits payments expected in 2028 1
Benefits payments expected in 2029 1
Benefit payments expected in 2030-2034 3
United States  
Defined Benefit Plan Disclosure [Line Items]  
Contributions expected in 2025 0
Benefits payments expected in 2025 1,104
Benefits payments expected in 2026 1,109
Benefits payments expected in 2027 1,102
Benefits payments expected in 2028 1,119
Benefits payments expected in 2029 1,133
Benefits payments expected in 2030-2034 5,854
Pension Benefits - Non-U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Contributions expected in 2025 325
Benefits payments expected in 2025 1,101
Benefits payments expected in 2026 1,077
Benefits payments expected in 2027 1,110
Benefits payments expected in 2028 1,146
Benefits payments expected in 2029 1,131
Benefits payments expected in 2030-2034 $ 5,681