DIVIDENDS (Per Share Distributions) (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Dividends Payable [Line Items]
Common dividends (in dollars per share)	$ 2.64	$ 2.54	$ 2.36
Ordinary Income [Member]
Dividends Payable [Line Items]
Common dividends (in dollars per share)	1.691	1.571	1.968
Return Of Capital [Member]
Dividends Payable [Line Items]
Common dividends (in dollars per share)	0.931	0.932	0.322
Capital Gains [Member]
Dividends Payable [Line Items]
Common dividends (in dollars per share)	$ 0.018	$ 0.037	$ 0.070