Goodwill and Intangible Assets, Net - Goodwill Table (Details) - USD ($) $ in Millions		2 Months Ended	3 Months Ended	12 Months Ended
	Oct. 01, 2024	Nov. 30, 2025	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill
Gross carrying amount of goodwill				$ 380	$ 378	$ 378
Foreign exchange				2
Accumulated impairment of goodwill				(90)	(90)	(90)
Goodwill				290	288
Automotive
Goodwill
Gross carrying amount of goodwill				337	337	337
Accumulated impairment of goodwill				(87)	(87)	(87)
Impairment	$ 0	$ 0	$ 0
Goodwill				250	250
Food Packaging
Goodwill
Gross carrying amount of goodwill				6	6	6
Goodwill				6	6
Home Fashion
Goodwill
Gross carrying amount of goodwill				24	22	22
Foreign exchange				2
Accumulated impairment of goodwill				(3)	(3)	(3)
Goodwill				21	19
Pharma
Goodwill
Gross carrying amount of goodwill				13	13	$ 13
Goodwill				$ 13	$ 13