Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Goodwill [Line Items]
Goodwill and other intangible assets	$ 19	$ 19		$ 19
Timber Licenses
Goodwill [Line Items]
Timber and Timberlands	21	21		23
Amortization of Intangible Assets		2
Developed Technology
Goodwill [Line Items]
Amortization of Intangible Assets	2	2
Finite-Lived Intangible Assets, Net	$ 4	$ 4		$ 7
Weighted average useful life	1 year	1 year	10 years