Annual report [Section 13 and 15(d), not S-K Item 405]

COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Funded Status as of the Respective Measurement Dates in Each Year and the Amounts Recognized in Balance Sheet (Details)

v3.25.4
COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Funded Status as of the Respective Measurement Dates in Each Year and the Amounts Recognized in Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Funded Status:      
Fair value of plan assets $ 45,634 $ 43,396  
Funded Status Recognized in our Balance Sheets:      
Pension and postretirement benefit obligations (6,567) (6,859)  
United States      
Funded Status:      
Fair value of plan assets 43,761 41,618  
International Pension Benefits      
Funded Status:      
Fair value of plan assets 1,873 1,778  
Benefit obligation (1,609) (1,500)  
Funded Status 264 278  
Funded Status Recognized in our Balance Sheets:      
Other non-current assets 484 480  
Other current liabilities (10) (7)  
Pension and postretirement benefit obligations (210) (195)  
Net Liability 264 278  
Amounts Recognized in AOCI      
Unrecognized net prior service cost (4) (5)  
Unrecognized net actuarial gain (loss) 91 107  
Unrecognized net actuarial gain (loss) 87 102  
Deferred tax asset (27) (32)  
Net unrecognized cost 60 70  
Pension Benefits | United States      
Funded Status:      
Fair value of plan assets 43,689 41,499 $ 43,491
Benefit obligation (48,472) (46,559) (47,712)
Funded Status (4,783) (5,060)  
Funded Status Recognized in our Balance Sheets:      
Other non-current assets 0 0  
Other current liabilities (28) (27)  
Pension and postretirement benefit obligations (4,755) (5,033)  
Net liability (4,783) (5,060)  
Amounts Recognized in AOCI      
Unrecognized net prior service cost (1,211) (1,251)  
Unrecognized net actuarial gain (loss) (2,740) (2,686)  
Unrecognized net actuarial gain (loss) (3,951) (3,937)  
Deferred tax asset 958 956  
Net unrecognized cost (2,993) (2,981)  
Pension Benefits | International Pension Benefits      
Funded Status:      
Fair value of plan assets 1,873 1,778 1,893
Benefit obligation (1,609) (1,500) (1,601)
Postemployment Retirement Benefits | United States      
Funded Status:      
Fair value of plan assets 72 119 98
Benefit obligation (1,822) (1,850) $ (1,974)
Funded Status (1,750) (1,731)  
Funded Status Recognized in our Balance Sheets:      
Other non-current assets 0 0  
Other current liabilities (148) (100)  
Pension and postretirement benefit obligations (1,602) (1,631)  
Net liability (1,750) (1,731)  
Amounts Recognized in AOCI      
Unrecognized net prior service cost 0 (1)  
Unrecognized net actuarial gain (loss) 48 131  
Unrecognized net actuarial gain (loss) 48 130  
Deferred tax asset (12) (32)  
Net unrecognized cost $ 36 $ 98