Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost) (Details) - Foreign Pension Plan [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5	$ 11
Interest cost	5	14
Expected return on plan assets	(21)	(61)
Amortization of loss	1	8
Amortization of prior service cost	4	6
Net periodic benefit cost	$ (6)	$ (22)