Goodwill and Intangibles Level 4 (Details) - Rollforward of Goodwill - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill and Goodwill included in long term assets held for sale	$ 113
Goodwill, Translation Adjustments	5	$ (1)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	121	122
Goodwill, Impaired, Accumulated Impairment Loss	(70)	(57)
Accumulated Foreign Currency Translation	(9)	(14)
Goodwill, Ending Balance	112	121
OTG [Domain]
Goodwill [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	(13)
EPCD [Member]
Goodwill [Line Items]
Goodwill, Translation Adjustments	1	0
Goodwill [Roll Forward]
Goodwill, Beginning Balance	54	54
Goodwill, Impaired, Accumulated Impairment Loss	(70)	(57)
Accumulated Foreign Currency Translation	1	0
Goodwill, Ending Balance	42	54
FPD [Member]
Goodwill [Line Items]
Goodwill, Translation Adjustments	4	(1)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	67	68
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Accumulated Foreign Currency Translation	(10)	(14)
Goodwill, Ending Balance	$ 71	$ 67