BENEFIT PLANS - Weighted-Average Actuarial Assumptions (Detail)		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Postretirement Benefit Plans, Defined Benefit
Weighted-average actuarial assumptions:
Discount rate - net periodic benefit cost		3.75%	4.25%	4.50%
Discount rate - benefit obligations		4.25%	3.75%	4.25%
Health care cost trend rates	[1]	7.40%	5.40%	5.20%
Defined benefit plan, ultimate health care cost trend rate		4.10%	4.50%	4.50%
Defined benefit plan number of years that rate reaches ultimate trend rate		61 years	77 years	74 years
Japan | Pension Plan
Weighted-average actuarial assumptions:
Discount rate - net periodic benefit cost		1.25%	1.25%	1.75%
Discount rate - benefit obligations		1.25%	1.25%	1.25%
Expected long-term return on plan assets		2.00%	2.00%	2.00%
U.S. | Pension Plan
Weighted-average actuarial assumptions:
Discount rate - net periodic benefit cost		3.75%	4.25%	4.50%
Discount rate - benefit obligations		4.25%	3.75%	4.25%
Expected long-term return on plan assets		6.50%	6.75%	7.00%
Rate of compensation increase		4.00%	4.00%	4.00%

[1] For the years 2018, 2017 and 2016, the health care cost trend rates are expected to trend down to 4.1% in 61 years, 4.5% in 77 years, and 4.5% in 74 years, respectively.