Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]
Net Carrying Amount		$ 751	$ 1,009
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Useful Life	[1]	21 years
Gross Carrying Amount	[1]	$ 870	1,071
Accumulated Amortization	[1]	(119)	(62)
Net Carrying Amount	[1]	$ 751	1,009
Other Intangible Assets [Member] | Process Technologies [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		27 years
Gross Carrying Amount		$ 509	514
Accumulated Amortization		(36)	(14)
Net Carrying Amount		$ 473	500
Other Intangible Assets [Member] | Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		13 years
Gross Carrying Amount		$ 212	401
Accumulated Amortization		(31)	(23)
Net Carrying Amount		$ 181	378
Other Intangible Assets [Member] | Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		10 years
Gross Carrying Amount		$ 123	129
Accumulated Amortization		(47)	(23)
Net Carrying Amount		$ 76	106
Other Intangible Assets [Member] | Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		10 years
Gross Carrying Amount		$ 26	27
Accumulated Amortization		(5)	(2)
Net Carrying Amount		$ 21	$ 25

[1] The decrease in other intangible assets during 2019 primarily related to an impairment charge of $159 million, amortization expense of $87 million, intangible assets allocated to the disposition of APP and the impact of foreign currency translation, partially offset by an increase of approximately $6 million due to the acquisition of the assets of Siluria, discussed in Note 4, Acquisition and Disposition Transactions.   Amortization expense is anticipated to be $75 million, $64 million, $52 million, $51 million and $50 million for 2020, 2021, 2022, 2023 and 2024, respectively