Quarterly report [Sections 13 or 15(d)]

SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Details)

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SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period $ 16,743  
Balance at end of period 15,684  
Accumulated other comprehensive income (loss)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at end of period (4,288) $ (3,781)
Unrealized gain (loss) on foreign currency translation    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (1,586) (1,248)
Translation adjustment 129 (125)
Balance at end of period (1,457) (1,373)
Translation adjustment, tax effect (1) 6
Unrealized gain (loss) on marketable securities    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (1) (2)
Current period changes in fair value 1 (1)
Balance at end of period 0 (3)
Current period changes in fair value, tax effect 0 0
Unrealized gain (loss) on cash flow hedges    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period 91 (76)
Current period changes in fair value (96) 103
Reclassification to earnings (43) (30)
Balance at end of period (48) (3)
Current period changes in fair value, tax effect (30) 33
Reclassification to earnings, tax effect (13) (10)
Unrecognized pension and postretirement benefit costs    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (2,813) (2,432)
Reclassification to earnings 30 30
Balance at end of period (2,783) (2,402)
Reclassification to earnings, tax effect $ 9 $ 8