v3.26.1
Postretirement Benefits - Schedule Of Net Benefit Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Components of net periodic benefit cost:        
Net periodic benefit cost (benefit) $ (123) $ (67) $ (119) $ (53)
Pension Benefits | U.S. Plans        
Components of net periodic benefit cost:        
Service cost 0 0 0 0
Interest cost 136 153 272 306
Expected return on plan assets (176) (180) (352) (360)
Amortization of prior service cost (credit) 0 0 0 0
Net periodic benefit cost (benefit) (40) (27) (80) (54)
Pension Benefits | Non-U.S. Plans        
Components of net periodic benefit cost:        
Service cost 12 12 24 23
Interest cost 30 27 60 55
Expected return on plan assets (44) (40) (88) (80)
Amortization of prior service cost (credit) 1 0 1 0
Net periodic benefit cost (benefit) (1) (1) (3) (2)
Other Postretirement Benefits        
Components of net periodic benefit cost:        
Service cost 14 16 28 32
Interest cost 26 30 53 61
Expected return on plan assets (3) (2) (6) (4)
Amortization of prior service cost (credit) 0 (1) 0 (2)
Net periodic benefit cost (benefit) $ 37 $ 43 $ 75 $ 87