Summarized Financial Information of Unconsolidated Affiliate Summarized Operations of Unconsolidated Affiliates (Details) - Unconsolidated JV [Member] - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Net Sales of Unconsolidated Affiliates	$ 46	$ 57	$ 129	$ 129
Gross Profit of Unconsolidated Affiliates	11	14	29	30
Pre-tax Income of Unconsolidated Affiliates	4	6	11	10
Net Income of Unconsolidated Affiliates	$ 3	$ 4	$ 7	$ 7