Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Other Intangible Assets (Textual) [Abstract]
Goodwill arising from acquisition	$ 2,632	$ 1,584	$ 1,635
Impairment of the indefinite-lived intangibles	0	0
Amortization expense related to finite-lived intangible assets	64	45	47
Goodwill, Acquired During Period	$ 1,106	10
Customer and Distributor Relationships
Goodwill and Other Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Asset, Useful Life	14 years
Internally Developed Network Software
Goodwill and Other Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Asset, Useful Life	5 years
Proprietary Technology
Goodwill and Other Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Asset, Useful Life	16 years
Trademarks
Goodwill and Other Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Asset, Useful Life	12 years
Other
Goodwill and Other Intangible Assets (Textual) [Abstract]
Finite-Lived Intangible Asset, Useful Life	5 years
Water Infrastructure
Goodwill and Other Intangible Assets (Textual) [Abstract]
Goodwill arising from acquisition	$ 1,074	1,066	$ 1,098
Goodwill, Acquired During Period	$ 38	$ 10