Pension and Postretirement Expense Level 4 (Details) - Amounts Recognized - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other assets, net	$ 43	$ 48
Other Liabilities, Current	(159)	(123)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(246)	(224)
Accumulated Other Comprehensive Income (Loss), Net of Tax	39	15	$ (73)
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Liabilities, Current	0	1
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(35)	(38)
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	1
Defined Benefit Plan, Amounts Recognized in Balance Sheet	(35)	(38)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	1	1
Deferred income taxes	(1)	0
Net Amounts Recognized in Accumulated Other Comprehensive Income	0	1
Defined Benefit Plan, Accumulated Benefit Obligation	242	249
Accumulated Benefit Obligation for Funded Plans	241	247
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	242	249
Pension Benefits Fair Value of Plan Assets of Underfunded Plans	207	210
Pension Plans with Underfunded Accumulated Benefit Obligations [Abstract]
Aggregate Projected Benefit Obligation for Underfunded Pension Plans	242	249
Aggregate Projected Benefit Obligation for Underfunded Pension Plans	242	249
Aggregate Fair Value of Plan Assets for Underfunded Pension Plans	207	210
Pension plans with projected benefit obligation [Abstract]
Actuarial Gain from Plan Amendment	0	0
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Liabilities, Current	(4)	(5)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(195)	(171)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3)	(4)
Defined Benefit Plan, Amounts Recognized in Balance Sheet	(202)	(180)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	(4)	(5)
Deferred income taxes	1	1
Net Amounts Recognized in Accumulated Other Comprehensive Income	(3)	(4)
Defined Benefit Plan, Accumulated Benefit Obligation	504	458
Accumulated Benefit Obligation for Funded Plans	350	308
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	164	158
Pension Benefits Fair Value of Plan Assets of Underfunded Plans	9	8
Pension Plans with Underfunded Accumulated Benefit Obligations [Abstract]
Aggregate Projected Benefit Obligation for Underfunded Pension Plans	173	167
Aggregate Projected Benefit Obligation for Underfunded Pension Plans	548	492
Aggregate Fair Value of Plan Assets for Underfunded Pension Plans	349	316
Pension plans with projected benefit obligation [Abstract]
Actuarial Gain from Plan Amendment	0	0
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Liabilities, Current	0	(1)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(6)	(6)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2)	(3)
Defined Benefit Plan, Amounts Recognized in Balance Sheet	(8)	(10)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	(1)	(1)
Deferred income taxes	(1)	(2)
Net Amounts Recognized in Accumulated Other Comprehensive Income	(2)	(3)
Pension plans with projected benefit obligation [Abstract]
Actuarial Gain from Plan Amendment	0	(1)
Foreign Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Liabilities, Current	0	0
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	(10)	(9)
Accumulated Other Comprehensive Income (Loss), Net of Tax	2	2
Defined Benefit Plan, Amounts Recognized in Balance Sheet	(8)	(7)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	3	3
Deferred income taxes	(1)	(1)
Net Amounts Recognized in Accumulated Other Comprehensive Income	2	2
Pension plans with projected benefit obligation [Abstract]
Actuarial Gain from Plan Amendment	$ 0	$ 0