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 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period     $ 17,314  
Balance at end of period $ 16,884   16,884  
Accumulated other comprehensive income (loss)        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at end of period (3,704) $ (1,540) (3,704) $ (1,540)
Unrealized gain (loss) on foreign currency translation        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (1,431) (1,346) (1,248) (1,446)
Translation adjustment 211 (96) 28 1
Reclassification to earnings     0 3
Balance at end of period (1,220) (1,442) (1,220) (1,442)
Translation adjustment, tax effect (5) 0 (2) (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) (20) (2) (11)
Current period changes in fair value 2 (2) 1 (13)
Reclassification to earnings     0 2
Balance at end of period (1) (22) (1) (22)
Current period changes in fair value, tax effect 0 (1) 0 (5)
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 0 10 (76) 167
Current period changes in fair value (117) 138 24 69
Reclassification to earnings (22) (27) (87) (115)
Balance at end of period (139) 121 (139) 121
Current period changes in fair value, tax effect (37) 44 7 22
Reclassification to earnings, tax effect (7) (8) (27) (36)
Unrecognized pension and postretirement benefit costs        
Accumulated Other Comprehensive Income (Loss) [Roll Forward]        
Balance at beginning of period (2,373) (218) (2,432) (259)
Reclassification to earnings 29 21 88 62
Balance at end of period (2,344) (197) (2,344) (197)
Reclassification to earnings, tax effect $ 9 $ 7 $ 27 $ 20