v3.26.1
PENSION BENEFITS - Schedule of Net Periodic Benefit (Income) Cost For Pension Plans (Details) - Pension Plan - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Defined Benefit Plan Disclosure [Line Items]    
Net periodic benefit (income) cost $ 164 $ 126
U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 6 7
Interest cost 131 147
Expected return on plan assets (282) (289)
Net periodic benefit (income) cost (145) (135)
Net periodic benefit (income) cost - continuing operations (145) (134)
Net periodic benefit (income) cost - discontinued operations 0 (1)
Non-U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 1 1
Interest cost 42 47
Expected return on plan assets (71) (73)
Amortization of prior service (credit) cost 1 0
Recognition of actuarial (gains) losses 0 14
Net periodic benefit (income) cost (27) (11)
Net periodic benefit (income) cost - continuing operations (27) (12)
Net periodic benefit (income) cost - discontinued operations $ 0 $ 1