v3.26.3
Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net $ (20) $ (17) $ (74) $ (75)
Total before tax 335 813 413 2,207
Income tax (benefit) expense (70) (192) 253 (470)
Net of tax 265 621 666 1,737
Decrease (Increase) in Net Income | Defined Benefit Plan        
Reclassifications out of accumulated other comprehensive income loss by component        
Total before tax 20 27 62 82
Income tax (benefit) expense (4) (6) (15) (20)
Net of tax 16 21 47 62
Decrease (Increase) in Net Income | Net actuarial loss        
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net 22 30 73 89
Decrease (Increase) in Net Income | Prior service credit        
Reclassifications out of accumulated other comprehensive income loss by component        
Other income, net $ (2) $ (3) $ (11) $ (7)