Summarized Financial Information of Unconsolidated Affiliate Summarized Operations of Unconsolidated Affiliates (Details) - USD ($) $ in Millions	6 Months Ended			12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2018
Summarized Financial Information of Unconsolidated Affiliates [Line Items]
Net Sales of Unconsolidated Affiliates		$ 14	$ 18	$ 32	$ 43
Gross Profit of Unconsolidated Affiliates		3	4	12	7
Pre-tax Income of Unconsolidated Affiliates		1	2	5	2
Net Income of Unconsolidated Affiliates		0	$ 2	4	2
Unconsolidated JV [Member]
Summarized Financial Information of Unconsolidated Affiliates [Line Items]
Net Sales of Unconsolidated Affiliates	$ 39	33		59	88
Gross Profit of Unconsolidated Affiliates	9	8		16	22
Pre-tax Income of Unconsolidated Affiliates	4	3		8	13
Net Income of Unconsolidated Affiliates	$ 3	$ 2		$ 6	$ 9