Employee Separation / Asset Related Charges, Net (Schedule of 2012 Restructuring Program) (Details) (Restructuring Program 2012 [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 152	$ 152
Payments for restructuring	0	0
Asset write-offs and adjustments	(19)	(19)
Restructuring reserve	133	133
Asset Related [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge	19	19
Payments for restructuring	0	0
Asset write-offs and adjustments	(19)	(19)
Restructuring reserve	0	0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge	133	133
Payments for restructuring	0	0
Asset write-offs and adjustments	0	0
Restructuring reserve	$ 133	$ 133