Goodwill and Other Intangible Assets (Other Intangible Rollforward) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
Finite-lived Intangible Assets [Roll Forward]
Other intangible assets, beginning balance	$ 10,758
Foreign currency translation	(114)
Intangible Assets Excluding Goodwill, Discontinued Operations	(7)
Other activity, net	(245)
Other intangible assets, ending balance	$ 10,359