v3.25.2
SHAREOWNERS' EQUITY - Gains (Losses) Reclassified from AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense $ (238) $ (212) $ (460) $ (407)
Revenue 21,221 21,818 42,767 43,524
Income tax expense (379) (460) (715) (883)
Net Income 1,283 1,409 2,470 2,522
Investment income and other 78 137 157 255
Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net Income (29) 6 (16) 6
Unrealized gain (loss) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Interest expense (2) (2) (3) (3)
Revenue 4 47 61 88
Income tax expense (1) (10) (14) (20)
Net Income 1 35 44 65
Unrecognized pension and postretirement benefit costs | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax expense 10 10 19 18
Net Income (30) (29) (60) (59)
Prior service costs | Reclassification out of Accumulated Other Comprehensive Income        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Investment income and other $ (40) $ (39) $ (79) $ (77)