Equity Method Investment - Summary of Unaudited Income Statement Information (Details) - Zenuity - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Schedule of Equity Method Investments [Line Items]
Net sales	$ 2	$ 1	$ 3	$ 4
Gross profit	0	0	0	0
Operating loss	(31)	(31)	(100)	(90)
Loss before income taxes	(31)	(30)	(100)	(90)
Net loss	$ (31)	$ (30)	$ (101)	$ (90)

The amount of gross profit (loss) reported by an equity method investment of the entity.

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Amount of income (loss) from continuing operations reported by an equity method investee.

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

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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