BENEFIT PLANS - Asset Allocation Targets (Detail) - Pension Plan	Dec. 31, 2017
Japan
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	100.00%
U.S.
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	100.00%
Domestic equity securities | Japan
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	11.00%
Domestic equity securities | U.S.
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	40.00%
International equity securities | Japan
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	15.00%
International equity securities | U.S.
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	20.00%
Fixed income bond funds | Japan
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	59.00%
Fixed income bond funds | U.S.
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	40.00%
Other Investments | Japan
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	15.00%
Other Investments | U.S.
Defined Benefit Plan Disclosure [Line Items]
Asset allocation targets	0.00%