Goodwill and Other Intangible Assets (Goodwill Roll Forward) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Goodwill [Roll Forward]
Goodwill	$ 3,912	$ 3,896		$ 3,954
Accumulated impairment losses	(2,755)	(2,438)		(2,332)
Net balance	1,157	1,458		1,622
Goodwill impairment expense	(317)	(164)		(372)
Goodwill, Acquired During Period	16
Ebute [Member]
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit		58
US
Goodwill [Roll Forward]
Goodwill	2,674	2,658		2,658
Accumulated impairment losses	(2,633)	(2,316)		(2,152)
Net balance	41	342		506
Goodwill impairment expense	(317)	(164)
Goodwill, Acquired During Period	16
Andes
Goodwill [Roll Forward]
Goodwill	899	899		899
Accumulated impairment losses	0	0		0
Net balance	899	899		899
Goodwill impairment expense	0	0
Goodwill, Acquired During Period	0
MCAC
Goodwill [Roll Forward]
Goodwill	149	149		149
Accumulated impairment losses	0	0		0
Net balance	149	149		149
Goodwill impairment expense	0	0
Goodwill, Acquired During Period	0
Europe
Goodwill [Roll Forward]
Goodwill	122	122	[1]	180
Accumulated impairment losses	(122)	(122)		(180)
Net balance	0	0		0
Goodwill impairment expense	0	0
Goodwill, Acquired During Period	0
Asia
Goodwill [Roll Forward]
Goodwill	68	68		68
Accumulated impairment losses	0	0		0
Net balance	68	68		$ 68
Goodwill impairment expense	0	$ 0
Goodwill, Acquired During Period	$ 0

[1] (1) Both the gross carrying amount and the accumulated impairment losses of the Europe segment have been reduced by $58 million with no impact on the net carrying amount for the segment. This relates to Ebute, which had fully impaired goodwill of $58 million and was sold in 2014.