Committments and Contingent Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Loss Contingency Accrual	$ 28	$ 26
Loss Contingency, Accrual, Current	1	1
Loss Contingency, Accrual, Noncurrent	27	25
SEC Schedule, 12-09, Reserve, Environmental Cost [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual	28	26	$ 27
Loss Contingency Accrual, Period Increase (Decrease)	(2)	0
Payments for Environmental Liabilities	1	1
Hardboard Siding Reserves
Loss Contingencies [Line Items]
Loss Contingency Accrual	0	0
Environmental Reserves
Loss Contingencies [Line Items]
Loss Contingency Accrual	$ 28	$ 26