REVENUE RECOGNITION - Revenue by Major Products (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue from External Customer
Net sales	$ 2,973	$ 3,144	$ 6,085	$ 5,650
Timberlands
Revenue from External Customer
Net sales	515	405	980	784
Timberlands | Delivered logs
Revenue from External Customer
Net sales	478	376	906	724
Timberlands | Stumpage and pay-as-cut timber
Revenue from External Customer
Net sales	11	7	20	13
Timberlands | Recreational and other lease revenue
Revenue from External Customer
Net sales	16	16	33	32
Timberlands | Other
Revenue from External Customer
Net sales	10	6	21	15
Timberlands | West | Delivered logs
Revenue from External Customer
Net sales	308	222	567	423
Timberlands | South | Delivered logs
Revenue from External Customer
Net sales	160	145	314	276
Timberlands | North | Delivered logs
Revenue from External Customer
Net sales	10	9	25	25
Timberlands | Domestic grade sales | West | Delivered logs
Revenue from External Customer
Net sales	103	80	216	159
Timberlands | Export grade sales | West | Delivered logs
Revenue from External Customer
Net sales	205	142	351	264
Real Estate & ENR
Revenue from External Customer
Net sales	117	110	245	216
Real Estate & ENR | Real Estate
Revenue from External Customer
Net sales	90	83	187	167
Real Estate & ENR | Energy and natural resources
Revenue from External Customer
Net sales	27	27	58	49
Wood Products
Revenue from External Customer
Net sales	2,341	2,629	4,860	4,650
Wood Products | Structural lumber
Revenue from External Customer
Net sales	998	1,349	2,204	2,339
Wood Products | Oriented strand board
Revenue from External Customer
Net sales	497	605	1,061	1,043
Wood Products | Engineered solid section
Revenue from External Customer
Net sales	247	166	443	308
Wood Products | Engineered I-joists
Revenue from External Customer
Net sales	168	104	305	187
Wood Products | Softwood plywood
Revenue from External Customer
Net sales	53	69	111	125
Wood Products | Medium density fiberboard
Revenue from External Customer
Net sales	53	43	101	91
Wood Products | Complementary building products
Revenue from External Customer
Net sales	239	213	454	384
Wood Products | Other
Revenue from External Customer
Net sales	$ 86	$ 80	$ 181	$ 173