Significant Accounting Policies Level 4 (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2017	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Foreign Currency Transaction Gain (Loss), before Tax			$ 4	$ 10	$ 9
Interest-bearing time deposits and other cash equivalents			9	7
Inventory Valuation Reserves			9	9
Unamortized debt issuance costs - assets			8	9
Depreciation			103	119	124
Accelerated Depreciation			14	129	2
Asset Impairment Charges	$ 0	$ (13)	13	0	(6)
Research and Development Expense			58	59	65
Business realignment costs			$ 52	55	16
Concentration Risk, Percentage			10.00%
restricted cash			$ 18	17
Net Benefit Cost, non-service costs			$ (13)	29	$ (22)
FPD [Member]
Asset Impairment Charges				$ (2)
Building [Member]
Property, Plant and Equipment, Useful Life			20 years
Machinery and Equipment [Member]
Property, Plant and Equipment, Useful Life			15 years
Minimum [Member]
Property, Plant and Equipment, Useful Life			1 year
Finite-Lived Intangible Asset, Useful Life			1 year
Maximum [Member]
Property, Plant and Equipment, Useful Life			5 years
Finite-Lived Intangible Asset, Useful Life			30 years