v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance $ 35,980 $ 44,858
Total other comprehensive income/(loss), net of tax (170) 481
Ending balance 37,484 44,660
Net gains on cash flow hedges 202  
AOCI    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (7,710) (9,639)
Total other comprehensive income/(loss), net of tax (170) 481
Ending balance (7,880) (9,158)
Foreign currency translation    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (4,878) (6,899)
Other comprehensive income (loss), before reclassifications, before tax (293) 497
Other comprehensive income (loss) before reclassifications, tax (31) (28)
Other comprehensive income (loss), before reclassifications, net of tax (262) 525
Reclassification from accumulated other comprehensive income, net of tax 5 (4)
Total other comprehensive income/(loss), net of tax (257) 521
Ending balance (5,135) (6,378)
Marketable securities    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 81 (50)
Other comprehensive income (loss), before reclassifications, before tax (82) 88
Other comprehensive income (loss) before reclassifications, tax (19) 19
Other comprehensive income (loss), before reclassifications, net of tax (63) 69
Reclassification from accumulated other comprehensive income, before tax (9) (2)
Reclassification from AOCI, tax (3) 0
Reclassification from accumulated other comprehensive income, net of tax (6) (2)
Total other comprehensive income/(loss), net of tax (69) 67
Ending balance 12 17
Derivative instruments    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (38) 277
Other comprehensive income (loss), before reclassifications, before tax 193 (82)
Other comprehensive income (loss) before reclassifications, tax 50 (19)
Other comprehensive income (loss), before reclassifications, net of tax 143 (63)
Reclassification from accumulated other comprehensive income, before tax (16) (85)
Reclassification from AOCI, tax (4) (19)
Reclassification from accumulated other comprehensive income, net of tax (12) (66)
Total other comprehensive income/(loss), net of tax 131 (129)
Ending balance 93 148
Pension and other postretirement benefits    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (2,875) (2,967)
Total other comprehensive income/(loss), net of tax 25 22
Ending balance (2,850) (2,945)
Net prior service costs/(credits) reclassified from AOCI to net income    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Other comprehensive income (loss), before reclassifications, before tax 30 30
Other comprehensive income (loss) before reclassifications, tax 7 7
Other comprehensive income (loss), before reclassifications, net of tax 23 23
Translation impact on non-U.S. plans    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Total other comprehensive income/(loss), net of tax $ 2 $ (1)