Benefit Plans (Components of Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
U.S. Plans - Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2	$ 2	$ 3	$ 4
Interest cost	4	4	8	8
Expected return on plan assets	(4)	(4)	(8)	(8)
Amortization:
Net loss	1	3	3	6
Prior service cost	0	1	0	1
Net transition obligation	0	0	0	0
Net periodic pension cost	3	6	6	11
Non-U.S. Plans - Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	52	62	104	127
Interest cost	52	41	103	84
Expected return on plan assets	(89)	(86)	(177)	(173)
Amortization:
Net loss	29	51	57	102
Prior service cost	2	3	4	5
Net transition obligation	0	1	0	1
Net periodic pension cost	$ 46	$ 72	$ 91	$ 146