Restructuring Related Activities (Details in Tables) - USD ($) $ in Millions	12 Months Ended			26 Months Ended	53 Months Ended	84 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	$ (95)					$ (476)
Restructuring Charges Incurred to Date						372
Restructuring Charges	26	$ 69	$ 101
Restructuring Related Expenses	57	48	23
Restructuring and Related Cost, Incurred Cost	83	117	124
Restructuring-related Costs Incurred to Date						143
2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0				$ (287)
Restructuring Charges Incurred to Date					247
Restructuring and Related Cost, Incurred Cost		4	100
Restructuring-related Costs Incurred to Date					39
2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(95)			$ (189)
Restructuring Charges Incurred to Date				125
Restructuring and Related Cost, Incurred Cost		113	30
Restructuring-related Costs Incurred to Date				104
2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			(6)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	29	43	41	29	29	29	$ 36
Payments for Restructuring	(37)	(40)	(61)			(202)
Restructuring Charges Incurred to Date						231
Restructuring Charges	23	42	60
Restructuring Related Expenses	0	0	0
Restructuring and Related Cost, Incurred Cost	23	42	60
Employee Severance [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	4	12	0	0	0	36
Payments for Restructuring	0	(9)	(61)		(133)
Restructuring Charges Incurred to Date					135
Restructuring Charges	(4)	1	37
Restructuring and Related Cost, Incurred Cost	(4)	1	37
Employee Severance [Member] | 2014 and 2011 Plan only [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			66
Employee Severance [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	29	39	29	29	29	29	$ 0
Payments for Restructuring	(37)	(31)	0	(69)
Restructuring Charges Incurred to Date				96
Restructuring Charges	27	41	29
Restructuring and Related Cost, Incurred Cost	27	41	29
Employee Severance [Member] | 2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			(6)
Impairment of an asset in value [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges Incurred to Date						(1)
Restructuring Charges			(15)
Restructuring Related Expenses			0
Restructuring and Related Cost, Incurred Cost			(15)
Impairment of an asset in value [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges Incurred to Date					(1)
Restructuring and Related Cost, Incurred Cost			(15)
Impairment of an asset in value [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges Incurred to Date				0
Restructuring and Related Cost, Incurred Cost			0
Impairment of an asset in value [Member] | 2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	3	6		3	3	3
Payments for Restructuring	(27)					(219)
Restructuring Charges Incurred to Date						142
Restructuring Charges	3	27	56
Restructuring Related Expenses	23	19	20
Restructuring and Related Cost, Incurred Cost	26	46	76
Other Restructuring [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0				(154)
Restructuring Charges Incurred to Date					113
Restructuring and Related Cost, Incurred Cost	0	3	75
Other Restructuring [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(27)			(65)
Restructuring Charges Incurred to Date				29
Restructuring and Related Cost, Incurred Cost	26	43	1
Other Restructuring [Member] | 2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			0
Restructuring Related To Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring-related Costs Incurred to Date						75
Restructuring Related To Plan [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	(4)
Restructuring-related Costs Incurred to Date					34
Restructuring Related To Plan [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	87
Restructuring-related Costs Incurred to Date				41
Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0	0
Restructuring Related Expenses	3	5	3
Restructuring and Related Cost, Incurred Cost	3	5	3
Restructuring-related Costs Incurred to Date						13
Accelerated Depreciation [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	0	3
Restructuring-related Costs Incurred to Date					5
Accelerated Depreciation [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	3	5	0
Restructuring-related Costs Incurred to Date				8
Accelerated Depreciation [Member] | 2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			0
Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(31)					(55)
Restructuring Charges	0	0
Restructuring Related Expenses	31	24
Restructuring and Related Cost, Incurred Cost	31	24
Restructuring-related Costs Incurred to Date						55
Transfer costs [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0				0
Restructuring and Related Cost, Incurred Cost	0	0
Restructuring-related Costs Incurred to Date					0
Transfer costs [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(31)			(55)
Restructuring and Related Cost, Incurred Cost	31	24
Restructuring-related Costs Incurred to Date				55
Restructuring Plan [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	286			286	286	286
Restructuring Plan [Member] | Employee Severance [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	135			135	135	135
Restructuring Plan [Member] | Other Restructuring [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	112			112	112	112
Restructuring Related To Plan [Member] | Other Restructuring [Member] | 2011 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	39			39	39	39
Cost of products sold [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	31	24
Cost of products sold [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of products sold [Member] | Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of products sold [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of products sold [Member] | Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	31	24
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	26	24	23
Selling, General and Administrative Expenses [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0	0
Selling, General and Administrative Expenses [Member] | Impairment of an asset in value [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			0
Selling, General and Administrative Expenses [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	23	19	20
Selling, General and Administrative Expenses [Member] | Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	3	5	$ 3
Selling, General and Administrative Expenses [Member] | Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	$ 0
Minimum [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	255			255	255	255
Minimum [Member] | Restructuring Plan [Member] | Employee Severance [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	95			95	95	95
Minimum [Member] | Restructuring Plan [Member] | Other Restructuring [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	30			30	30	30
Minimum [Member] | Restructuring Related To Plan [Member] | Other Restructuring [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	130			130	130	130
Maximum [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	270			270	270	270
Maximum [Member] | Restructuring Plan [Member] | Employee Severance [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	100			100	100	100
Maximum [Member] | Restructuring Plan [Member] | Other Restructuring [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	35			35	35	35
Maximum [Member] | Restructuring Related To Plan [Member] | Other Restructuring [Member] | 2014 Restructuring plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 135			$ 135	$ 135	$ 135