Acquisitions and Divestitures (Details Textual) $ in Millions						2 Months Ended	12 Months Ended
	Nov. 01, 2016 USD ($)	Oct. 18, 2016 USD ($) employee	Feb. 01, 2016 USD ($) employee	Oct. 22, 2015 USD ($)	Jul. 02, 2014 USD ($)	Dec. 31, 2016 USD ($) employee	Dec. 31, 2016 USD ($) employee	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Cash payment to acquire business, net of cash acquired							$ 1,782	$ 18	$ 0
Acquisition costs							19
Tax valuation release							16
Proceeds from divestiture of businesses							0	1	30
Gain (loss) on disposition of business							$ 0	9	$ 11
Wolverhampton
Business Acquisition [Line Items]
Proceeds from divestiture of businesses					$ 30
Revenues								$ 25
Gain (loss) on disposition of business					$ 11
Sensus
Business Acquisition [Line Items]
Cash payment to acquire business	$ 1,760
Cash payment to acquire business, net of cash acquired	$ 1,704
Revenue						$ 132
Net income						$ 13
Hypack
Business Acquisition [Line Items]
Cash payment to acquire business				$ 18
Number of employees | employee						30	30
Revenues							$ 8
VIsenti
Business Acquisition [Line Items]
Cash payment to acquire business		$ 8
Additional contingent consideration		$ 4
Number of employees at acquired business | employee		25
Tideland Signal Corporation
Business Acquisition [Line Items]
Cash payment to acquire business			$ 70
Number of employees at acquired business | employee			160