v3.26.1
PENSION BENEFITS - Schedule of Components of Net Periodic Benefit Cost (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Curtailment gain $ (5)      
Pension        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 4 $ 9 $ 17 $ 18
Interest cost 7 14 30 29
Expected return on assets (11) (20) (47) (41)
Amortization of prior service cost 1 1 3 3
Actuarial loss 0 0 1 1
Curtailment gain (5) 0 (5) 0
Settlement charge 5 0 5 0
Net periodic benefit cost $ 1 $ 4 $ 4 $ 10