Asset Impairment and Exit Costs (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Cash payments related to exit costs	$ 33	$ 5	$ 263	$ 17
Restructuring Reserve	367		367		308
Asset impairment and exit costs	(9)	0	503	8
Separation Costs	(13)	0	370	0
Asset impairment charges	4	0	133	0
European Union [Member]
Restructuring Cost and Reserve [Line Items]
Separation Costs	(16)	0	343	0
Asset impairment charges	0	0	129	0
Factory Closing [Member] | Australia and Canada [Member]
Restructuring Cost and Reserve [Line Items]
Separation Costs	3		27
Factory Closing [Member] | Canada [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	4		4
Factory Closing [Member] | Affiliated Entity [Member] | European Union [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment and exit costs			472
Restructuring Reserve, Accrual Adjustment	16
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Exit costs	$ 0	$ 0	$ 0	$ 8