v3.25.4
ACCUMULATED OTHER COMPREHENSIVE LOSS - Change in Other Comprehensive Loss By Component (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance $ 19,154 $ 16,434  
Net current period other comprehensive income (loss) (1,631) 615 $ (665)
Ending balance 15,030 19,154 16,434
Total      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (3,491) (4,135) (3,475)
Other comprehensive income (loss) before reclassifications (1,990) 590 (681)
Amounts reclassified from accumulated other comprehensive loss 200 54 21
Spin-off 135    
Net current period other comprehensive income (loss) (1,655) 644 (660)
Ending balance (5,146) (3,491) (4,135)
Foreign Exchange Translation Adjustment      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (2,872) (3,101) (2,832)
Other comprehensive income (loss) before reclassifications (1,201) 229 (269)
Amounts reclassified from accumulated other comprehensive loss 180 0 0
Spin-off 114    
Net current period other comprehensive income (loss) (907) 229 (269)
Ending balance (3,779) (2,872) (3,101)
Pension and Other Postretirement Benefit Adjustments      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (642) (1,055) (648)
Other comprehensive income (loss) before reclassifications (769) 343 (477)
Amounts reclassified from accumulated other comprehensive loss 22 70 70
Spin-off 11    
Net current period other comprehensive income (loss) (736) 413 (407)
Ending balance (1,378) (642) (1,055)
Changes in Fair Value of Available for Sale Investments      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (1) (2) (7)
Other comprehensive income (loss) before reclassifications 6 1 5
Amounts reclassified from accumulated other comprehensive loss 0 0 0
Spin-off 0    
Net current period other comprehensive income (loss) 6 1 5
Ending balance 5 (1) (2)
Changes in Fair Value of Cash Flow Hedges      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance 24 23 12
Other comprehensive income (loss) before reclassifications (26) 17 60
Amounts reclassified from accumulated other comprehensive loss (2) (16) (49)
Spin-off 10    
Net current period other comprehensive income (loss) (18) 1 11
Ending balance $ 6 $ 24 $ 23