PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Asset Class) (Detail)	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Asset Allocations	91.00%
Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Asset Allocations	15.00%	22.00%
Target Plan Asset Allocations	15.00%
International equities
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Asset Allocations	5.00%	7.00%
Target Plan Asset Allocations	5.00%
Total equity
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Asset Allocations	20.00%	29.00%
Target Plan Asset Allocations	20.00%
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Asset Allocations	80.00%	71.00%
Target Plan Asset Allocations	80.00%
Minimum | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	12.00%
Minimum | International equities
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	1.00%
Minimum | Total equity
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	15.00%
Minimum | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	75.00%
Maximum | Domestic equities
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	18.00%
Maximum | International equities
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	6.00%
Maximum | Total equity
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	25.00%
Maximum | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	85.00%