RETIREMENT BENEFITS - Actuarial Assumptions Used In Defined Benefit Pension Plans (Detail) - Pension Plan	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted average assumptions used to determine benefit obligations as of end of period:
Discount rate	3.11%	4.17%	3.51%
Weighted average assumptions used to determine net periodic pension cost for the period:
Discount rate	4.17%	3.51%	3.98%
Expected long-term return on plan assets	7.00%	6.50%	6.50%