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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Additional) (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Defined Contribution Plan Disclosure [Line Items] |  |
Defined Contribution Plan, Employer Contribution, Percentage, Maximum | 7.00% |
Defined Contribution Plan, Cost | $ 9 | $ 9

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