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

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details)

v3.25.4
Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
U.S. | Postretirement Health and Life Plans      
Components of net periodic benefit cost (income)      
Service cost $ 2 $ 2 $ 2
Interest cost 35 33 36
Expected return on plan assets (2) (3) (2)
Amortization of actuarial loss (gain) and prior service cost (34) (35) (78)
Net periodic benefit cost (income) $ 1 $ (3) $ (42)
Weighted-average assumptions used to determine net cost for years ended December 31      
Discount rate 5.71% 5.17% 5.56%
Expected return on plan assets 3.40% 3.40% 2.00%
U.S. | Qualified | Pension Plan      
Components of net periodic benefit cost (income)      
Service cost $ 0 $ 0 $ 0
Interest cost 608 587 616
Expected return on plan assets (1,188) (1,206) (1,191)
Amortization of actuarial loss (gain) and prior service cost 144 134 94
Recognized loss (gain) due to settlements, curtailments, and other 0 0 0
Net periodic benefit cost (income) $ (436) $ (485) $ (481)
Weighted-average assumptions used to determine net cost for years ended December 31      
Discount rate 5.67% 5.13% 5.54%
Expected return on plan assets 6.50% 6.50% 6.50%
U.S. | Nonqualified | Other Pension Plan      
Components of net periodic benefit cost (income)      
Service cost $ 0 $ 0 $ 0
Interest cost 104 103 111
Expected return on plan assets (94) (90) (97)
Amortization of actuarial loss (gain) and prior service cost 36 33 29
Net periodic benefit cost (income) $ 46 $ 46 $ 43
Weighted-average assumptions used to determine net cost for years ended December 31      
Discount rate 5.61% 5.19% 5.58%
Expected return on plan assets 5.26% 4.73% 4.98%
Rate of compensation increase 4.00% 4.00% 4.00%
Non-U.S. | Pension Plan      
Components of net periodic benefit cost (income)      
Service cost $ 36 $ 31 $ 27
Interest cost 92 86 80
Expected return on plan assets (77) (89) (72)
Amortization of actuarial loss (gain) and prior service cost 17 16 11
Recognized loss (gain) due to settlements, curtailments, and other 0 (1) 1
Net periodic benefit cost (income) $ 68 $ 43 $ 47
Weighted-average assumptions used to determine net cost for years ended December 31      
Discount rate 5.15% 4.48% 4.59%
Expected return on plan assets 4.79% 5.18% 4.17%
Rate of compensation increase 4.35% 4.33% 4.25%