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 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period     $ 17,314  
Balance at end of period $ 17,053   17,053  
Accumulated other comprehensive income (loss)        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at end of period (3,807) $ (1,574) (3,807) $ (1,574)
Unrealized gain (loss) on foreign currency translation        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (1,373) (1,328) (1,248) (1,446)
Translation adjustment (58) (18) (183) 97
Reclassification to earnings     0 3
Balance at end of period (1,431) (1,346) (1,431) (1,346)
Translation adjustment, tax effect (3) 2 3 (13)
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 (3) (4) (2) (11)
Current period changes in fair value 0 (16) (1) (11)
Reclassification to earnings     0 2
Balance at end of period (3) (20) (3) (20)
Current period changes in fair value, tax effect 0 (5) 0 (4)
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 (3) 90 (76) 167
Current period changes in fair value 38 (43) 141 (69)
Reclassification to earnings (35) (37) (65) (88)
Balance at end of period 0 10 0 10
Current period changes in fair value, tax effect 11 (14) 44 (22)
Reclassification to earnings, tax effect (10) (12) (20) (28)
Unrecognized pension and postretirement benefit costs        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (2,402) (239) (2,432) (259)
Reclassification to earnings 29 21 59 41
Balance at end of period (2,373) (218) (2,373) (218)
Reclassification to earnings, tax effect $ 10 $ 6 $ 18 $ 13