Restructuring Related Activities (Details in Narrative) - USD ($) $ in Millions	12 Months Ended			31 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			$ 78
Restructuring Charges	$ 36	$ 37	28
Restructuring Related Expenses			50
Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		95
Restructuring Charges Incurred to Date				$ 100
Restructuring Charges	36	37
Restructuring and Related Cost, Cost Incurred to Date	236			236
Restructuring-related Costs Incurred to Date				136
Restructuring Related Expenses	59	58
Restructuring and Restructuring-Related Cost	96
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(100)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			19
Restructuring Related Expenses			0
Employee Severance [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	32	25	19
Restructuring and Related Cost, Incurred Cost		25
Restructuring Charges Incurred to Date				81
Restructuring Related Expenses	0	0
Restructuring and Restructuring-Related Cost	32
Employee Severance [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(32)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			25
Restructuring Related Expenses			16
Other Restructuring [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		25
Restructuring Charges Incurred to Date				20
Other Restructuring Costs	4	12	9
Restructuring-related Costs Incurred to Date				28
Restructuring Related Expenses	12	13
Restructuring and Restructuring-Related Cost	16
Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(20)
Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			34
Restructuring Related Expenses			34
Transfer costs [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		45
Transfer Costs	0	0	0
Restructuring-related Costs Incurred to Date				107
Restructuring Related Expenses	47	45
Restructuring and Restructuring-Related Cost	47
Transfer costs [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(47)
Maximum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring plan estimated future cash outflow	280
Restructuring and Restructuring-related Cost, Expected Cost	300			300
Maximum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring plan estimated future cash outflow	300
Restructuring and Restructuring-related Cost, Expected Cost	325			325
Minimum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring plan estimated future cash outflow	180
Restructuring and Restructuring-related Cost, Expected Cost	200			200
Minimum [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring plan estimated future cash outflow	250
Restructuring and Restructuring-related Cost, Expected Cost	275			275
Restructuring Related To Plan [Member] | Maximum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring-related Cost, Expected Cost	150			150
Restructuring Related To Plan [Member] | Maximum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring-related Cost, Expected Cost	185			185
Restructuring Related To Plan [Member] | Minimum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring-related Cost, Expected Cost	100			100
Restructuring Related To Plan [Member] | Minimum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring-related Cost, Expected Cost	170			170
Restructuring Plan [Member] | Maximum [Member] | Employee Severance [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	100			100
Restructuring Plan [Member] | Maximum [Member] | Employee Severance [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	90			90
Restructuring Plan [Member] | Maximum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	50			50
Restructuring Plan [Member] | Maximum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	50			50
Restructuring Plan [Member] | Minimum [Member] | Employee Severance [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	75			75
Restructuring Plan [Member] | Minimum [Member] | Employee Severance [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	80			80
Restructuring Plan [Member] | Minimum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	25			25
Restructuring Plan [Member] | Minimum [Member] | Other Restructuring [Member] | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	25			$ 25
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			34
Cost of Sales [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			0
Cost of Sales [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			0
Cost of Sales [Member] | Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			34
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			16
Selling, General and Administrative Expenses [Member] | Employee Severance [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			16
Selling, General and Administrative Expenses [Member] | Transfer costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses			$ 0
Selling, General and Administrative Expenses [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	12	13
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Selling, General and Administrative Expenses [Member] | Other Restructuring [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	12	13
Selling, General and Administrative Expenses [Member] | Transfer costs [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of Sales [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	47	45
Cost of Sales [Member] | Employee Severance [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of Sales [Member] | Other Restructuring [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	0	0
Cost of Sales [Member] | Transfer costs [Member] | Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Related Expenses	$ 47	$ 45