Restructuring Level 4 (Details) - Restructuring by Type - USD ($) $ in Millions	3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 31, 2018	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017	Jul. 02, 2019	Jul. 01, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		$ 2		$ 6	$ 17	$ 3	$ 3
Cumulative restructuring costs, Incurred to Date		26
Restructuring and Related Cost, Cost Incurred this year		0	$ 1		5
accelerated depreciation				4	14
Payments for Restructuring		(1)	(4)		(16)
OTG [Domain]
Restructuring Cost and Reserve [Line Items]
accelerated depreciation				14
EPCD [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		1		2	11	1	1
Cumulative restructuring costs, Incurred to Date		14
Restructuring and Related Cost, Cost Incurred this year		0	1		1
Payments for Restructuring		0	2		10
FPD [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		1		2	3	1	1
Cumulative restructuring costs, Incurred to Date		8
Restructuring and Related Cost, Cost Incurred this year		0	0		3
Payments for Restructuring		0	1		4
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		$ 2	3	$ 1	$ 1
Cumulative restructuring costs, Incurred to Date		4
Restructuring and Related Cost, Cost Incurred this year		0	0		1
Payments for Restructuring		$ 1	$ 1		$ 2
OTG [Domain]
Restructuring Cost and Reserve [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 20
Impairment of Intangible Assets (Excluding Goodwill)	5
Restructuring and Related Cost, Accelerated Depreciation	$ 25