INCOME TAXES Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Estimated annual effective tax rate for our Taxable REIT Subsidiary	33.00%
Receivables for taxes	$ 5	$ 30
Deferred tax assets	122	$ 254
Tax liability from potential adjustment	100
Gain from potential tax adjustment	600
Plum Creek [Member]
Receivables for taxes	4
Deferred tax assets	$ 65
Maximum
Percentage of gain distributed in common stock	80.00%