Intangible Assets and Goodwill Gross Carrying Amount of Intangibles and Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount [Roll Forward]
Balance at January 1		$ 3,402	$ 1,782
Acquisitions	[1]	25	1,701
Foreign currency translation and other		(69)	(81)
Balance at December 31		$ 3,358	$ 3,402

[1] Primarily attributable to the 2016 acquisition of PureDepth, Inc., and the 2015 acquisitions of HellermannTyton Group PLC, Control-Tec LLC and Ottomatika, Inc., as further described in Note 20. Acquisitions and Divestitures.