Inventories - Components of Inventories (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Raw material	$ 105	$ 99
Work in progress	14	8
Finished products	51	62
Inventories	170	169
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Inventory reserve at beginning of year	(25)	(23)
Inventory reserve at end of year	(36)	(25)
Total inventories, net of reserve	134	144
Inventory
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Reversal of allowance	0	1
Addition to allowance	(11)	(4)
Write-off against allowance	1	1
Translation difference	$ (1)	$ 0

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of decrease in valuation and qualifying accounts and reserves.

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Amount of increase in valuation and qualifying accounts and reserves from recovery of amount previously written off or reestablishment of reserve previously utilized.

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