v3.26.1
SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period $ 16,255  
Balance at end of period 15,791  
Accumulated other comprehensive income (loss)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at end of period (4,250) $ (4,288)
Unrealized gain (loss) on foreign currency translation    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (1,058) (1,586)
Translation adjustment (151) 129
Balance at end of period (1,209) (1,457)
Translation adjustment, tax effect (5) (1)
Unrealized gain (loss) on marketable securities    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period 0 (1)
Current period changes in fair value 0 1
Unrealized gain (loss) on cash flow hedges    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (253) 91
Current period changes in fair value 62 (96)
Reclassification to earnings 19 (43)
Balance at end of period (172) (48)
Current period changes in fair value, tax effect 20 (30)
Reclassification to earnings, tax effect 6 (13)
Unrecognized pension and postretirement benefit costs    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (2,897) (2,813)
Reclassification to earnings 28 30
Balance at end of period (2,869) (2,783)
Reclassification to earnings, tax effect $ 9 $ 9