Restructuring and Related Implementation Charges (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Reserve [Roll Forward]
Charges	$ 105	$ 170	$ 195
2012 Restructuring Program
Restructuring Reserve [Roll Forward]
Beginning balance	215	192	158
Charges	228	254	286
Cash payments	(237)	(179)	(212)
Charges against assets	(33)	(42)	(31)
Foreign exchange	(1)	(10)	(9)
Other	9	0	0
Ending balance	181	215	192
2012 Restructuring Program | Employee Related Costs
Restructuring Reserve [Roll Forward]
Beginning balance	84	85	116
Charges	61	109	73
Cash payments	(84)	(85)	(95)
Charges against assets	(4)	(17)	(5)
Foreign exchange	(1)	(8)	(4)
Other	0	0	0
Ending balance	56	84	85
2012 Restructuring Program | Incremental Depreciation
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	0
Charges	9	20	25
Cash payments	0	0	0
Charges against assets	(9)	(20)	(25)
Foreign exchange	0	0	0
Other	0	0	0
Ending balance	0	0	0
2012 Restructuring Program | Asset Impairment
Restructuring Reserve [Roll Forward]
Beginning balance	0	0	0
Charges	20	5	1
Cash payments	0	0	0
Charges against assets	(20)	(5)	(1)
Foreign exchange	0	0	0
Other	0	0	0
Ending balance	0	0	0
2012 Restructuring Program | Other
Restructuring Reserve [Roll Forward]
Beginning balance	131	107	42
Charges	138	120	187
Cash payments	(153)	(94)	(117)
Charges against assets	0	0	0
Foreign exchange	0	(2)	(5)
Other	9	0	0
Ending balance	125	131	107
2012 Restructuring Program | Third party Incremental Cost
Restructuring Reserve [Roll Forward]
Charges	116	65	65
2012 Restructuring Program | Contract Termination
Restructuring Reserve [Roll Forward]
Charges	21	8	40
2012 Restructuring Program | Land and Building
Restructuring Reserve [Roll Forward]
Charges	$ 1	$ 47	$ 82