v3.26.1
Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Reclassifications out of accumulated other comprehensive income loss by component    
Other income, net $ (26) $ (30)
Total before tax (177) 245
Income tax expense (benefit) 377 (44)
Net of tax 200 201
Decrease (Increase) in Net Income | Defined Benefit Plan    
Reclassifications out of accumulated other comprehensive income loss by component    
Total before tax 23 27
Income tax expense (benefit) (6) (7)
Net of tax 17 20
Decrease (Increase) in Net Income | Net actuarial loss    
Reclassifications out of accumulated other comprehensive income loss by component    
Other income, net 31 29
Decrease (Increase) in Net Income | Prior service credit    
Reclassifications out of accumulated other comprehensive income loss by component    
Other income, net $ (8) $ (2)