Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 628		$ 663
Income data:
Revenues and other income	172	$ 220
Income from operations	(30)	49
Net income	$ (26)	$ 32
EGHoldings
Schedule of Equity Method Investments [Line Items]
Ownership percentage	60.00%
Equity method investments	$ 294		310
Alba Plant LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage	52.00%
Equity method investments	$ 162		163
AMPCO
Schedule of Equity Method Investments [Line Items]
Ownership percentage	45.00%
Equity method investments	$ 172		$ 190

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of net income (loss) reported by an equity method investment of the entity.

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Amount of revenue from sale of product and rendering of service reported by equity method investee.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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