v3.26.1
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated other comprehensive income (loss)    
Beginning balance $ 30,241 $ 28,463
Other comprehensive income (loss) before reclassifications (67) 102
Other Comprehensive Income (Loss), Net of Income Taxes (64) 94
Ending balance 29,681 28,353
Accumulated Other Comprehensive Loss    
Accumulated other comprehensive income (loss)    
Beginning balance (167) (407)
Other Comprehensive Income (Loss), Net of Income Taxes (64) 94
Ending balance (231) (313)
Defined Benefit Plans    
Accumulated other comprehensive income (loss)    
Beginning balance (113) (140)
Other comprehensive income (loss) before reclassifications 2 2
Other Comprehensive Income (Loss), Net of Income Taxes 5 6
Ending balance (108) (134)
Amortization of net actuarial loss and settlements    
Accumulated other comprehensive income (loss)    
Amounts reclassified from accumulated other comprehensive loss 3 4
Foreign Currency Translation    
Accumulated other comprehensive income (loss)    
Beginning balance (49) (262)
Other comprehensive income (loss) before reclassifications (69) 100
Amounts reclassified from accumulated other comprehensive loss 0 (12)
Other Comprehensive Income (Loss), Net of Income Taxes (69) 88
Ending balance (118) (174)
Hedging    
Accumulated other comprehensive income (loss)    
Beginning balance (5) (5)
Other comprehensive income (loss) before reclassifications 0 0
Other Comprehensive Income (Loss), Net of Income Taxes 0 0
Ending balance $ (5) $ (5)