Annual report [Section 13 and 15(d), not S-K Item 405]

PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Weighted-Average Assumptions Used to Determine Benefit Obligations (Details)

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PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Weighted-Average Assumptions Used to Determine Benefit Obligations (Details)
Dec. 31, 2025
Dec. 31, 2024
Pension Benefits    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.18% 5.55%
Interest crediting rate 5.61% 5.58%
Rate of compensation increase 3.00% 3.00%
OPEB    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Discount rate 5.22% 5.59%