v3.26.1
Financial Instruments - Effect of Derivative Instruments on Income and Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Derivative Instruments, Gain (Loss) [Line Items]    
Revenues $ 109,896 $ 90,234
Other income (expense), net 37,716 11,183
Revenues    
Foreign exchange derivatives    
Total gains (losses) $ (180) $ 260
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Revenues Revenues
Other income (expense), net    
Foreign exchange derivatives    
Total gains (losses) $ (251) $ 26
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other income (expense), net Other income (expense), net
Foreign exchange derivatives | Revenues | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments $ 0 $ 0
Foreign exchange derivatives | Other income (expense), net | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments (179) 65
Credit derivatives | Revenues | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments 0 0
Credit derivatives | Other income (expense), net | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments (148) 0
Other derivatives | Revenues | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments 0 0
Other derivatives | Other income (expense), net | Not Designated as Hedging Instrument    
Foreign exchange derivatives    
Derivatives not designated as hedging instruments 14 (71)
Cash flow hedges | Foreign exchange derivatives | Revenues    
Foreign exchange derivatives    
Amount included in the assessment of effectiveness (211) 242
Amount excluded from the assessment of effectiveness 31 18
Cash flow hedges | Foreign exchange derivatives | Other income (expense), net    
Foreign exchange derivatives    
Amount included in the assessment of effectiveness 0 0
Amount excluded from the assessment of effectiveness 0 0
Fair value hedges | Foreign exchange derivatives | Revenues    
Foreign exchange derivatives    
Hedged items 0 0
Amount included in the assessment of effectiveness 0 0
Amount excluded from the assessment of effectiveness 0 0
Fair value hedges | Foreign exchange derivatives | Other income (expense), net    
Foreign exchange derivatives    
Hedged items 0 (9)
Amount included in the assessment of effectiveness 0 9
Amount excluded from the assessment of effectiveness 0 1
Net investment hedges | Foreign exchange derivatives | Revenues    
Foreign exchange derivatives    
Amount excluded from the assessment of effectiveness 0 0
Net investment hedges | Foreign exchange derivatives | Other income (expense), net    
Foreign exchange derivatives    
Amount excluded from the assessment of effectiveness $ 62 $ 31