v3.26.1
Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Accumulated Other Comprehensive Loss in the Equity Section of the Balance Sheet (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance $ 64,541 $ 65,238 $ 64,487 $ 64,796
Other comprehensive income (loss) (148) 492 (265) 571
Ending Balance 65,349 65,572 65,349 65,572
Defined Benefit Plans        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance     (335)  
Other comprehensive income (loss)     16  
Ending Balance (319)   (319)  
Unrealized Holding Gain/(Loss) on Securities        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance     8  
Other comprehensive income (loss)     (10)  
Ending Balance (2)   (2)  
Foreign Currency Translation        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance     (5,602)  
Other comprehensive income (loss)     (271)  
Ending Balance (5,873)   (5,873)  
Unrealized Gain/(Loss) on Hedging Activities        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance     18  
Other comprehensive income (loss)     0  
Ending Balance 18   18  
Accum. Other Comprehensive Income (Loss)        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning Balance (6,028) (6,394) (5,911) (6,473)
Other comprehensive income (loss) (148) 492 (265) 571
Ending Balance $ (6,176) $ (5,902) $ (6,176) $ (5,902)