Pension and Postretirement Benefit Plans - Components of Net Periodic Benefit Costs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 16	$ 18	$ 56	$ 56
Expected return on plan assets	(28)	(29)	(83)	(87)
Service cost
Amortization of net actuarial loss	3	5	11	15
Net periodic benefit cost (credit)	(9)	(6)	(16)	(16)
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	3	3	9	9
Expected return on plan assets
Service cost	1	1	4	4
Amortization of net actuarial loss	1	1	3	3
Net periodic benefit cost (credit)	5	5	16	16
Foreign Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	1	2	4	4
Expected return on plan assets
Service cost
Amortization of net actuarial loss
Net periodic benefit cost (credit)	$ 1	$ 2	$ 4	$ 4