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EMPLOYEE RETIREMENT PLANS - Net Periodic Pension Cost for Defined-benefit Pension Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Qualified      
Net periodic pension cost for the company's defined-benefit pension plans      
Service cost $ 2 $ 2 $ 2
Interest cost 5 4 4
Expected return on plan assets (5) (5) (4)
Recognized net loss 0 1 0
Net periodic pension cost 2 2 3
Non-Qualified      
Net periodic pension cost for the company's defined-benefit pension plans      
Service cost 0 0 0
Interest cost 5 5 6
Expected return on plan assets 0 0 0
Recognized net loss 1 1 1
Net periodic pension cost $ 6 $ 6 $ 7