Benefit Expenses (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2016
Benefit Expenses
U.S Defined Contribution Plan Matching Contributions	100.00%
Defined Contribution Plan, matching contribution expenses	$ 2	$ 4
United States Pension Plan of US Entity [Member]
Benefit Expenses
Service cost	0	0
Interest cost	7	8
Expected return on plan assets	(10)	(11)
Amortization of losses and other	0	0
Net pension (income) expense	(3)	(3)
Defined Benefit Plan, Contributions by Employer	3
Foreign Pension Plan [Member]
Benefit Expenses
Service cost	1	2
Interest cost	2	5
Expected return on plan assets	(2)	(5)
Amortization of losses and other		1
Net pension (income) expense	1	$ 3
Defined Benefit Plan, Contributions by Employer	$ 2
Scenario, Forecast [Member]
Benefit Expenses
Defined Benefit Plan, Methodology change for future net benefit cost			$ 7
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			$ 14