Benefit Plans Components Of Net Periodic Benefit Cost (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
U.S. Plans - Pension [Member]
Service cost	$ 2	$ 2
Interest cost	4	4
Expected return on plan assets	(4)	(4)
Net loss	3	2
Prior service cost	0	0
Other	0	1
Net periodic pension cost	5	5
Non-U.S. Plans - Pension [Member]
Service cost	49	41
Interest cost	49	49
Expected return on plan assets	(84)	(76)
Net loss	31	14
Prior service cost	3	2
Other	0	0
Net periodic pension cost	$ 48	$ 30