Goodwill and Intangibles Level 4 (Details) - Schedule of Intangible Assets - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 10	$ 12	$ 12
Finite-Lived Intangible Assets, Gross	246	246
Impairment of Intangible Assets, Finite-lived	(22)	(17)
Finite-Lived Intangible Assets, Accumulated Amortization	(197)	(187)
Intangible Assets, Net (Excluding Goodwill)	27	42
Patents and Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	112	112
Impairment of Intangible Assets, Finite-lived	0	0
Finite-Lived Intangible Assets, Accumulated Amortization	(100)	(97)
Intangible Assets, Net (Excluding Goodwill)	12	15
Customer Lists and Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	109	109
Impairment of Intangible Assets, Finite-lived	(22)	(17)
Finite-Lived Intangible Assets, Accumulated Amortization	(83)	(79)
Intangible Assets, Net (Excluding Goodwill)	4	13
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	25	25
Impairment of Intangible Assets, Finite-lived	0	0
Finite-Lived Intangible Assets, Accumulated Amortization	(14)	(11)
Intangible Assets, Net (Excluding Goodwill)	$ 11	$ 14