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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Pension Benefits - U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3	$ 7	$ 6
Interest cost	16	17	31	34
Expected return on plan assets	(24)	(23)	(49)	(46)
Recognized net loss	14	14	28	28
Net periodic cost	9	11	17	22
Pension Benefits - Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	7	13	14
Interest cost	31	38	67	76
Expected return on plan assets	(40)	(46)	(86)	(92)
Recognized prior service cost (credit)	(2)	1	(6)	1
Recognized net loss	16	14	34	28
Net periodic cost	11	14	22	27
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	2	2
Interest cost	4	4	7	8
Recognized prior service cost (credit)	(10)	(11)	(20)	(22)
Recognized net loss	4	4	8	8
Net periodic cost	$ (1)	$ (2)	$ (3)	$ (4)