Employee Retirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
U.S. Pension Plan
Components of Net Periodic Benefit Cost:
Service cost	$ 1	$ 1
Interest cost	7	7
Expected return on plan assets	(9)	(10)
Net amortizations	2	1
Settlement loss	1	1
Net periodic pension expense (benefit)	2	0
Non U.S. Pension Plan
Components of Net Periodic Benefit Cost:
Service cost	0	1
Interest cost	2	2
Expected return on plan assets	(3)	(4)
Net amortizations	0	0
Settlement loss	0	0
Net periodic pension expense (benefit)	$ (1)	$ (1)