Goodwill and Intangibles Level 4 (Details) - Rollforward of Goodwill - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 13		$ (13)
Goodwill and Goodwill included in long term assets held for sale		$ 109	113
Goodwill, Other Increase (Decrease)		(1)
Goodwill, Translation Adjustments		(3)	5
Goodwill [Roll Forward]
Goodwill, Beginning Balance	121	112	121
Goodwill, Impaired, Accumulated Impairment Loss		(70)	(70)
Accumulated Foreign Currency Translation		(12)	(9)
Goodwill, Ending Balance		109	112
OTG [Domain]
Goodwill [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss		(13)
EPCD [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss			(13)
Goodwill, Other Increase (Decrease)		0
Goodwill, Translation Adjustments		(1)	1
Goodwill [Roll Forward]
Goodwill, Beginning Balance	54	42	54
Goodwill, Impaired, Accumulated Impairment Loss		(70)	(70)
Accumulated Foreign Currency Translation		0	1
Goodwill, Ending Balance		41	42
FPD [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss			0
Goodwill, Other Increase (Decrease)		(1)
Goodwill, Translation Adjustments		(2)	4
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 67	71	67
Goodwill, Impaired, Accumulated Impairment Loss		0	0
Accumulated Foreign Currency Translation		(12)	(10)
Goodwill, Ending Balance		$ 68	$ 71