Restructuring Related Activities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		16 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Dec. 31, 2016
Restructuring and Related Cost [Line Items]
Restructuring Charges Incurred to Date					$ 45
Restructuring-related Costs Incurred to Date					63
Estimated costs of restructuring program by major type of cost
Payments for Restructuring			$ (51)		(78)
Restructuring Related Expenses	$ 14	$ 12	44	$ 33
Restructuring and Related Cost, Incurred Cost	26	17	61	55
Restructuring Charges	12	5	17	22
2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring Charges Incurred to Date					45
Restructuring-related Costs Incurred to Date					63
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Cost Incurred to Date	108		108		108
Payments for Restructuring			(51)		(78)
Restructuring and Related Cost, Incurred Cost		7		25
2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		10		30
Termination Benefits [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0	0	0	0
Restructuring and Related Cost, Incurred Cost	11	1	14	16
Restructuring Charges	11	1	14	16
Termination Benefits [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring Reserve	18		18		18	$ 16
Restructuring Charges Incurred to Date					38
Estimated costs of restructuring program by major type of cost
Payments for Restructuring			(12)		(20)
Restructuring and Related Cost, Incurred Cost		1		19
Restructuring Charges			14
Termination Benefits [Member] | 2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		0		(3)
Accelerated depreciation [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	2		5	4
Restructuring and Related Cost, Incurred Cost	2		5	4
Restructuring Charges	0		0	0
Accelerated depreciation [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring-related Costs Incurred to Date					7
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost				0
Accelerated depreciation [Member] | 2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost				4
Transfer costs [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	11	8	35	20
Restructuring and Related Cost, Incurred Cost	11	8	35	20
Restructuring Charges	0	0	0	0
Transfer costs [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring-related Costs Incurred to Date					50
Estimated costs of restructuring program by major type of cost
Payments for Restructuring			(35)		(50)
Restructuring and Related Cost, Incurred Cost		3		4
Transfer costs [Member] | 2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		5		16
Impairment of an asset in value [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses		0		0
Restructuring and Related Cost, Incurred Cost		2		2
Restructuring Charges		2		2
Impairment of an asset in value [Member] | 2016 Restructuring Plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		0		0
Impairment of an asset in value [Member] | 2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		2		2
Other [Member]
Restructuring and Related Cost [Line Items]
Restructuring Reserve	8		8		8	$ 6
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	1	4	4	9
Restructuring and Related Cost, Incurred Cost	2	6	7	13
Restructuring Charges	1	2	3	4
Other [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring Charges Incurred to Date					7
Restructuring-related Costs Incurred to Date					6
Estimated costs of restructuring program by major type of cost
Payments for Restructuring			(4)		(8)
Restructuring and Related Cost, Incurred Cost		3		2
Other [Member] | 2014 Restructuring plan [Member]
Estimated costs of restructuring program by major type of cost
Restructuring and Related Cost, Incurred Cost		3		11
Minimum [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	175		175		175
Estimated costs of restructuring program by major type of cost
Restructuring plan estimated future cash outflow			160
Minimum [Member] | Restructuring Plan [Member] | Termination Benefits [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	65		65		65
Minimum [Member] | Restructuring Plan [Member] | Other [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	5		5		5
Minimum [Member] | Restructuring Related To Plan [Member] | Other [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	105		105		105
Maximum [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	225		225		225
Estimated costs of restructuring program by major type of cost
Restructuring plan estimated future cash outflow			210
Maximum [Member] | Restructuring Plan [Member] | Termination Benefits [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	75		75		75
Maximum [Member] | Restructuring Plan [Member] | Other [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	15		15		15
Maximum [Member] | Restructuring Related To Plan [Member] | Other [Member] | 2016 Restructuring Plan [Member]
Restructuring and Related Cost [Line Items]
Restructuring and Related Cost, Expected Cost	135		135		$ 135
Cost of Sales [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	11	8	35	20
Cost of Sales [Member] | Termination Benefits [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0	0	0	0
Cost of Sales [Member] | Accelerated depreciation [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0		0	0
Cost of Sales [Member] | Transfer costs [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	11	8	35	20
Cost of Sales [Member] | Impairment of an asset in value [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses		0		0
Cost of Sales [Member] | Other [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0	0	0	0
Selling, General and Administrative Expenses [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	3	4	9	13
Selling, General and Administrative Expenses [Member] | Termination Benefits [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0	0	0	0
Selling, General and Administrative Expenses [Member] | Accelerated depreciation [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	2		5	4
Selling, General and Administrative Expenses [Member] | Transfer costs [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	0	0	0	0
Selling, General and Administrative Expenses [Member] | Impairment of an asset in value [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses		0		0
Selling, General and Administrative Expenses [Member] | Other [Member]
Estimated costs of restructuring program by major type of cost
Restructuring Related Expenses	$ 1	$ 4	$ 4	$ 9