v3.25.4
Pension And Other Postretirement Benefits (Fair Value Of Benefit Plan Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Pension Benefits - U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 11,038 $ 11,244
Pension Benefits - U.S. | Total at fair value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 9,332 9,665
Fair value of plan assets 11,036 11,242
Pension Benefits - U.S. | U.S. Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 2,018 2,263
Fair value of plan assets 2,018 2,263
Pension Benefits - U.S. | Non-U.S. Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 1,216 1,225
Fair value of plan assets 1,216 1,225
Pension Benefits - U.S. | Private equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 728 439
Fair value of plan assets 728 439
Pension Benefits - U.S. | Corporate Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 4,238 4,498
Fair value of plan assets 5,223 5,469
Pension Benefits - U.S. | Government Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 990 1,126
Fair value of plan assets 1,686 1,718
Pension Benefits - U.S. | Asset-Backed Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 1 1
Fair value of plan assets 1 1
Pension Benefits - U.S. | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 141 113
Fair value of plan assets 141 113
Pension Benefits - U.S. | Other    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 23 14
Pension Benefits - U.S. | Insurance Contracts At Contract Value [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 2 2
Pension Benefits - U.S. | Level 2 | Total at fair value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 1,704 1,577
Pension Benefits - U.S. | Level 2 | Corporate Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 985 971
Pension Benefits - U.S. | Level 2 | Government Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 696 592
Pension Benefits - U.S. | Level 2 | Other    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 23 14
Pension Benefits - Non-U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 18,148 17,378
Pension Benefits - Non-U.S. | Total at fair value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 17,718 16,957
Fair value of plan assets 18,132 17,363
Pension Benefits - Non-U.S. | U.S. Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 1,659 2,865
Fair value of plan assets 1,659 2,865
Pension Benefits - Non-U.S. | Non-U.S. Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 993 1,560
Fair value of plan assets 1,047 1,603
Pension Benefits - Non-U.S. | Private equity    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 337 291
Fair value of plan assets 337 291
Pension Benefits - Non-U.S. | Corporate Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 3,980 3,650
Fair value of plan assets 4,034 3,699
Pension Benefits - Non-U.S. | Government Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 9,033 8,222
Fair value of plan assets 9,301 8,440
Pension Benefits - Non-U.S. | Asset-Backed Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 149 180
Fair value of plan assets 167 192
Pension Benefits - Non-U.S. | Other Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 33 13
Fair value of plan assets 33 13
Pension Benefits - Non-U.S. | Real Estate    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 151 107
Fair value of plan assets 151 107
Pension Benefits - Non-U.S. | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, net asset value 1,383 69
Fair value of plan assets 1,403 153
Pension Benefits - Non-U.S. | Insurance Contracts At Contract Value [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 16 15
Pension Benefits - Non-U.S. | Level 1 | Total at fair value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 164 198
Pension Benefits - Non-U.S. | Level 1 | Non-U.S. Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 54 43
Pension Benefits - Non-U.S. | Level 1 | Government Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 99 77
Pension Benefits - Non-U.S. | Level 1 | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 11 78
Pension Benefits - Non-U.S. | Level 2 | Total at fair value    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 250 208
Pension Benefits - Non-U.S. | Level 2 | Corporate Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 54 49
Pension Benefits - Non-U.S. | Level 2 | Government Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 169 141
Pension Benefits - Non-U.S. | Level 2 | Asset-Backed Debt Securities    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy 18 12
Pension Benefits - Non-U.S. | Level 2 | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets, fair value hierarchy $ 9 $ 6