Investments in Unconsolidated Affiliates - Equity Method Investment Summarized Financial Information, Balance Sheet (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Current assets	$ 347	$ 463
Long-term assets	7,564	7,546
Current liabilities	(165)	(231)
Long-term liabilities	(258)	(252)
Net assets	$ 7,488	$ 7,526

The amount of assets reported by an equity method investment of the entity.

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