Pension and Postretirement Expense Level 4 (Details) - Components of net pension and postretirement expense benefit (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Pension Benefits - U.S. Plans [Member]
Pension Benefits and Non-Pension Postretirement Benefits Disclosures Table Text Block [Line Items]
Service cost	$ 1	$ 1	$ 2	$ 2
Interest cost on projected benefit obligation	3	3	9	8
Expected return on assets	(4)	(4)	(12)	(11)
Recognized actuarial loss	1	2	5	7
Net expense (benefit)	1	2	4	6
Pension Benefits - Non-U.S. Plans [Member]
Pension Benefits and Non-Pension Postretirement Benefits Disclosures Table Text Block [Line Items]
Service cost	3	3	11	11
Interest cost on projected benefit obligation	5	4	13	13
Expected return on assets	(4)	(3)	(11)	(9)
Amortization of prior service cost (benefit)		1		1
Recognized actuarial loss	1	3	3	7
Net expense (benefit)	5	8	16	23
Non-Pension Postretirement Benefits - U.S. Plans [Member]
Pension Benefits and Non-Pension Postretirement Benefits Disclosures Table Text Block [Line Items]
Service cost	0	0	0	0
Interest cost on projected benefit obligation	0	0	0	0
Expected return on assets	0	0	0	0
Amortization of prior service cost (benefit)		(1)		(1)
Recognized actuarial loss	0	0	0	0
Net expense (benefit)	0	(1)	0	(1)
Non-Pension Postretirement Benefits - Non-U.S. Plans [Member]
Pension Benefits and Non-Pension Postretirement Benefits Disclosures Table Text Block [Line Items]
Service cost	0	0	0	0
Interest cost on projected benefit obligation	0	0	1	0
Expected return on assets	0	0	0	0
Amortization of prior service cost (benefit)		0		1
Recognized actuarial loss	0	0	0	0
Net expense (benefit)	$ 0	$ 0	$ 1	$ 1