Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Proceeds From Sale of Buildings, Cash Received	$ 15
Gain on Acquisition			$ 0	$ 0	$ 14
Proceeds from Sale of Buildings	17
Proceeds from Sale and Collection of Notes Receivable	2
Gain (Loss) on Sale of Properties			2
Property, plant and equipment, net			1,069	918
Inventories			323	259
Net sales			4,553	2,788	2,310
East River Facility and CanExe [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	14
Property, plant and equipment, net	5
Inventories	$ 10
Operating Segments | Other
Business Acquisition [Line Items]
Net sales			$ 95	52	66
Operating Segments | CanExel siding [Member] | Other
Business Acquisition [Line Items]
Net sales				$ 14	$ 46
Entekra [Member]
Business Acquisition [Line Items]
Gain on Acquisition		$ 0