Pension and Other Postretirement Benefits (Components Of Net Periodic Pension And Other Postretirement Benefits Costs) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Pension Benefits - U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 3	$ 11	$ 9
Interest cost	15	18	46	52
Expected return on plan assets	(25)	(24)	(74)	(70)
Recognized net loss	14	14	42	42
Net periodic cost	8	11	25	33
Pension Benefits - Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	7	19	21
Interest cost	36	37	103	113
Expected return on plan assets	(44)	(45)	(130)	(137)
Recognized prior service cost (credit)	(5)	(1)	(11)	0
Recognized net loss	18	15	52	43
Net periodic cost	11	13	33	40
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2	3	4
Interest cost	3	4	10	12
Recognized prior service cost (credit)	(14)	(11)	(34)	(33)
Recognized net loss	4	3	12	11
Net periodic cost	$ (6)	$ (2)	$ (9)	$ (6)