Inventories - Components of Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 128	$ 105
Work in progress	18	14
Finished products	53	51
Inventories	199	170
Inventory valuation reserve	(42)	(36)
Total inventories, net of reserve	$ 157	$ 134

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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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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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