v3.26.1
Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net $ (28) $ (28) $ (54) $ (58)
Total before tax 255 1,149 78 1,394
Income tax (benefit) expense (54) (234) 323 (278)
Net of tax 201 915 401 1,116
Decrease (Increase) in Net Income | Defined Benefit Plan        
Reclassifications out of accumulated other comprehensive income loss by component        
Total before tax 19 28 42 55
Income tax (benefit) expense (5) (7) (11) (14)
Net of tax 14 21 31 41
Decrease (Increase) in Net Income | Net actuarial loss        
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net 20 30 51 59
Decrease (Increase) in Net Income | Prior service credit        
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net $ (1) $ (2) $ (9) $ (4)