Goodwill And Other Intangibles (Changes In The Carrying Amount Of Goodwill) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Balance as of January 1, as reported		$ 7,241	$ 6,893
Goodwill acquired		783	472
Other adjustments	[1]	(135)	(124)
Balance at December 31,		$ 7,889	$ 7,241

[1] due to the impact of foreign exchange in both years.