v3.25.4
Pension and Postretirement Benefit Plans - Schedule of Change in Benefit Obligation and Plan Assets and Amounts Recognized in Balance Sheet and AOCI (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Change in benefit obligation      
Settlements, curtailments, special termination benefits and other   $ 808  
Accrued benefit cost      
Non-current liabilities $ (1,631) (1,813)  
Pension Plan      
Change in plan assets      
Company contributions 132 140  
Postretirement benefits      
Change in benefit obligation      
Benefit obligation at beginning of year 1,503 1,897  
Acquisitions/(divestitures) 0 (243)  
Service cost 17 21 $ 27
Interest cost 73 80 87
Participant contributions 0 0  
Foreign exchange rate changes 3 (16)  
Plan amendments (144) 0  
Actuarial (gain) loss 19 (112)  
Benefit payments (110) (118)  
Settlements, curtailments, special termination benefits and other (5) (6)  
Benefit obligation at end of year 1,356 1,503 1,897
Change in plan assets      
Fair value of plan assets at beginning of year 761 980  
Acquisitions/(divestitures) 0 (130)  
Actual return on plan assets 59 21  
Company contributions 13 14  
Participant contributions 0 0  
Foreign exchange rate changes 0 0  
Benefit payments (110) (118)  
Settlements, curtailments, special termination benefits and other (5) (6)  
Fair value of plan assets at end of year 718 761 980
Funded status at end of year (638) (742)  
Amounts recognized in the consolidated balance sheet      
Non-current assets 0 0  
Accrued benefit cost      
Current liabilities (11) (12)  
Non-current liabilities (627) (730)  
Net amount recognized (638) (742)  
Amounts recognized in accumulated other comprehensive income      
Net actuarial loss (gain) 278 279  
Prior service cost (credit) (222) (94)  
Ending balance 56 185  
United States | Pension Plan      
Change in benefit obligation      
Benefit obligation at beginning of year 8,362 13,498  
Acquisitions/(divestitures) 0 (1,850)  
Service cost 102 123 171
Interest cost 433 522 662
Participant contributions 0 0  
Foreign exchange rate changes 0 0  
Plan amendments 0 0  
Actuarial (gain) loss 226 (721)  
Benefit payments (705) (823)  
Settlements, curtailments, special termination benefits and other 0 (2,387)  
Benefit obligation at end of year 8,418 8,362 13,498
Change in plan assets      
Fair value of plan assets at beginning of year 7,498 12,348  
Acquisitions/(divestitures) 0 (1,808)  
Actual return on plan assets 781 99  
Company contributions 67 69  
Participant contributions 0 0  
Foreign exchange rate changes 0 0  
Benefit payments (705) (823)  
Settlements, curtailments, special termination benefits and other 0 (2,387)  
Fair value of plan assets at end of year 7,641 7,498 12,348
Funded status at end of year (777) (864)  
Amounts recognized in the consolidated balance sheet      
Non-current assets 0 0  
Accrued benefit cost      
Current liabilities (40) (50)  
Non-current liabilities (737) (814)  
Net amount recognized (777) (864)  
Amounts recognized in accumulated other comprehensive income      
Net actuarial loss (gain) 2,645 2,922  
Prior service cost (credit) 0 0  
Ending balance 2,645 2,922  
Accumulated benefit obligation 8,231 8,094  
Plans with accumulated benefit obligation in excess of plan assets      
Accumulated benefit obligation 8,231 8,094  
Fair value of plan assets 7,641 7,498  
Plans with projected benefit obligation in excess of plan assets      
Projected benefit obligation 8,418 8,362  
Fair value of plan assets 7,641 7,498  
International | Pension Plan      
Change in benefit obligation      
Benefit obligation at beginning of year 4,436 5,571  
Acquisitions/(divestitures) (22) (615)  
Service cost 49 63 76
Interest cost 198 200 225
Participant contributions 6 7  
Foreign exchange rate changes 402 (284)  
Plan amendments 1 0  
Actuarial (gain) loss (178) (198)  
Benefit payments (258) (249)  
Settlements, curtailments, special termination benefits and other (19) (59)  
Benefit obligation at end of year 4,615 4,436 5,571
Change in plan assets      
Fair value of plan assets at beginning of year 5,397 6,341  
Acquisitions/(divestitures) 0 (455)  
Actual return on plan assets 82 38  
Company contributions 65 71  
Participant contributions 6 7  
Foreign exchange rate changes 471 (299)  
Benefit payments (258) (249)  
Settlements, curtailments, special termination benefits and other (23) (57)  
Fair value of plan assets at end of year 5,740 5,397 $ 6,341
Funded status at end of year 1,125 961  
Amounts recognized in the consolidated balance sheet      
Non-current assets 1,406 1,243  
Accrued benefit cost      
Current liabilities (14) (13)  
Non-current liabilities (267) (269)  
Net amount recognized 1,125 961  
Amounts recognized in accumulated other comprehensive income      
Net actuarial loss (gain) 384 347  
Prior service cost (credit) 7 7  
Ending balance 391 354  
Accumulated benefit obligation 4,486 4,289  
Plans with accumulated benefit obligation in excess of plan assets      
Accumulated benefit obligation 698 655  
Fair value of plan assets 433 405  
Plans with projected benefit obligation in excess of plan assets      
Projected benefit obligation 769 695  
Fair value of plan assets $ 467 $ 416