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EMPLOYEE RETIREMENT PLANS - Qualified Defined-benefit Pension Plan Assets at Fair Value by Level within the Fair Value Hierarchy (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair Value    
Plan assets $ 101 $ 92
Level 1    
Fair Value    
Plan assets 37 33
Level 2    
Fair Value    
Plan assets 52 48
Level 3    
Fair Value    
Plan assets 13 11
United States | Common and preferred stocks:    
Fair Value    
Plan assets 21 18
United States | Corporate, government and other debt securities:    
Fair Value    
Plan assets 6 6
United States | Level 1 | Common and preferred stocks:    
Fair Value    
Plan assets 21 18
United States | Level 1 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 0 0
United States | Level 2 | Common and preferred stocks:    
Fair Value    
Plan assets 0 0
United States | Level 2 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 6 6
United States | Level 3 | Common and preferred stocks:    
Fair Value    
Plan assets 0 0
United States | Level 3 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 0 0
International | Common and preferred stocks:    
Fair Value    
Plan assets 12 11
International | Corporate, government and other debt securities:    
Fair Value    
Plan assets 28 22
International | Real estate:    
Fair Value    
Plan assets 13 11
International | Buy-in annuity:    
Fair Value    
Plan assets 3 2
International | Short-term and other investments:    
Fair Value    
Plan assets 18 21
International | Level 1 | Common and preferred stocks:    
Fair Value    
Plan assets 12 11
International | Level 1 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 0 0
International | Level 1 | Real estate:    
Fair Value    
Plan assets 0 0
International | Level 1 | Buy-in annuity:    
Fair Value    
Plan assets 0 0
International | Level 1 | Short-term and other investments:    
Fair Value    
Plan assets 4 3
International | Level 2 | Common and preferred stocks:    
Fair Value    
Plan assets 0 0
International | Level 2 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 28 22
International | Level 2 | Real estate:    
Fair Value    
Plan assets 0 0
International | Level 2 | Buy-in annuity:    
Fair Value    
Plan assets 3 2
International | Level 2 | Short-term and other investments:    
Fair Value    
Plan assets 14 18
International | Level 3 | Common and preferred stocks:    
Fair Value    
Plan assets 0 0
International | Level 3 | Corporate, government and other debt securities:    
Fair Value    
Plan assets 0 0
International | Level 3 | Real estate:    
Fair Value    
Plan assets 13 11
International | Level 3 | Buy-in annuity:    
Fair Value    
Plan assets 0 0
International | Level 3 | Short-term and other investments:    
Fair Value    
Plan assets $ 0 $ 0