Quarterly report pursuant to Section 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, 2024
Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period $ 17,314  
Balance at end of period 16,933  
Accumulated other comprehensive income (loss)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at end of period (3,781) $ (1,481)
Foreign currency translation gain (loss)    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (1,248) (1,446)
Translation adjustment (125) 115
Reclassification to earnings 0 3
Balance at end of period (1,373) (1,328)
Translation adjustment, tax effect 6 (15)
Reclassification to earnings, tax effect 0 0
Unrealized gain (loss) on marketable securities    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (2) (11)
Current period changes in fair value (1) 5
Reclassification to earnings 0 2
Balance at end of period (3) (4)
Current period changes in fair value, tax effect 0 1
Reclassification to earnings, tax effect 0 1
Unrealized gain (loss) on cash flow hedges    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (76) 167
Current period changes in fair value 103 (26)
Reclassification to earnings (30) (51)
Balance at end of period (3) 90
Current period changes in fair value, tax effect 33 (8)
Reclassification to earnings, tax effect (10) (16)
Unrecognized pension and postretirement benefit costs    
Accumulated Other Comprehensive Income (Loss) [Roll Forward]    
Balance at beginning of period (2,432) (259)
Reclassification to earnings 30 20
Balance at end of period (2,402) (239)
Reclassification to earnings, tax effect $ 8 $ 7