v3.26.1
OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance $ 14,808 $ 18,092 $ 14,827 $ 8,173
Ending balance 14,455 18,617 14,455 18,617
Accumulated Other Comprehensive Income (Loss)        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (366) (1,341) (528) (1,722)
Ending balance (485) (672) (485) (672)
Defined Benefit Pension and Postretirement Adjustments        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (1,070) (1,288) (1,099) (1,312)
Amounts reclassified from accumulated other comprehensive income (loss) 9 16 38 40
Ending balance (1,061) (1,272) (1,061) (1,272)
Change in Cumulative Foreign Currency Translation Adjustments        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance 625 8 630 (402)
Amounts reclassified from accumulated other comprehensive income (loss) (1) 0 2 0
Other comprehensive income (loss) before reclassifications (82) 645 (90) 1,055
Ending balance 542 653 542 653
Net Gains and Losses on Cash Flow Hedging Derivatives        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance 79 (61) (59) (8)
Amounts reclassified from accumulated other comprehensive income (loss) 0 8 1 7
Other comprehensive income (loss) before reclassifications (45) 0 92 (52)
Ending balance $ 34 $ (53) $ 34 $ (53)