REVENUE RECOGNITION - Revenue by Major Products (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from External Customer
Net sales	$ 3,112	$ 2,506
Timberlands
Revenue from External Customer
Net sales	465	379
Timberlands | Delivered logs
Revenue from External Customer
Net sales	428	348
Timberlands | Stumpage and pay-as-cut timber
Revenue from External Customer
Net sales	9	6
Timberlands | Recreational and other lease revenue
Revenue from External Customer
Net sales	17	16
Timberlands | Other
Revenue from External Customer
Net sales	11	9
Timberlands | West | Delivered logs
Revenue from External Customer
Net sales	259	201
Timberlands | South | Delivered logs
Revenue from External Customer
Net sales	154	131
Timberlands | North | Delivered logs
Revenue from External Customer
Net sales	15	16
Timberlands | Domestic grade sales | West | Delivered logs
Revenue from External Customer
Net sales	113	79
Timberlands | Export grade sales | West | Delivered logs
Revenue from External Customer
Net sales	146	122
Real Estate & ENR
Revenue from External Customer
Net sales	128	106
Real Estate & ENR | Real Estate
Revenue from External Customer
Net sales	97	84
Real Estate & ENR | Energy and natural resources
Revenue from External Customer
Net sales	31	22
Wood Products
Revenue from External Customer
Net sales	2,519	2,021
Wood Products | Structural lumber
Revenue from External Customer
Net sales	1,206	990
Wood Products | Oriented strand board
Revenue from External Customer
Net sales	564	438
Wood Products | Engineered solid section
Revenue from External Customer
Net sales	196	142
Wood Products | Engineered I-joists
Revenue from External Customer
Net sales	137	83
Wood Products | Softwood plywood
Revenue from External Customer
Net sales	58	56
Wood Products | Medium density fiberboard
Revenue from External Customer
Net sales	48	48
Wood Products | Complementary building products
Revenue from External Customer
Net sales	215	171
Wood Products | Other
Revenue from External Customer
Net sales	$ 95	$ 93