Restructuring and Related Implementation Charges (Details 4) - 2012 Restructuring Program - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 192	$ 158	$ 89
Charges	254	286	371
Cash Payments	(179)	(212)	(169)
Charges against assets	(42)	(31)	(44)
Foreign exchange	(10)	(9)	2
Other	0	0	(91)
Ending Balance	215	192	158
Employee Related Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	85	116	84
Charges	109	73	144
Cash Payments	(85)	(95)	(97)
Charges against assets	(17)	(5)	(17)
Foreign exchange	(8)	(4)	2
Other	0	0	0
Ending Balance	84	85	116
Incremental Depreciation [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0
Charges	20	25	26
Cash Payments	0	0	0
Charges against assets	(20)	(25)	(26)
Foreign exchange	0	0	0
Other	0	0	0
Ending Balance	0	0	0
Asset Impairment [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	0	0
Charges	5	1	1
Cash Payments	0	0	0
Charges against assets	(5)	(1)	(1)
Foreign exchange	0	0	0
Other	0	0	0
Ending Balance	0	0	0
Other Restructuring
Restructuring Reserve [Roll Forward]
Beginning Balance	107	42	5
Charges	120	187	200
Cash Payments	(94)	(117)	(72)
Charges against assets	0	0	0
Foreign exchange	(2)	(5)	0
Other	0	0	(91)
Ending Balance	131	107	42
Third party Incremental Cost [Member]
Restructuring Reserve [Roll Forward]
Charges	65	65	50
Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Charges	8	40	34
Land and Building [Member]
Restructuring Reserve [Roll Forward]
Charges	$ 47	$ 82	$ 25