Business Acquisition - Purchase Price Allocation (Details) - USD ($) $ in Millions	Feb. 01, 2020	Dec. 31, 2021	Dec. 31, 2020
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill		$ 31	$ 31
U.S. Sawmill Business
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Current assets	$ 19
Fixed assets	114
Amortizable intangible assets	21
Operating lease right-of-use assets	2
Goodwill	31
Total assets acquired and goodwill	187
Current liabilities	11
Long-term debt, net of current portion	2
Operating lease liabilities, net of current portion	1
Total liabilities assumed	14
Net assets acquired	173
Fair value of consideration transferred	173
Business combination, cash and cash equivalents acquired	$ 1
Business combination, acquired amortizable intangible assets, weighted average useful life	10 years
Business combination, fair value discount rate for acquired intangible assets (as a percent)	12.60%