Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Not Designated As Hedging Instruments) (Details) (Not Designated As Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative [Line Items]
Total gain (loss) recognized in earnings	$ 109	$ (461)	$ 283	$ (992)
Interest Expense [Member]
Derivative [Line Items]
Interest Contracts	0	0	0	0
Net Sales And Other Operating Income [Member]
Derivative [Line Items]
FX Contracts	(3)	51	106	135
Cost Of Products Sold [Member]
Derivative [Line Items]
FX Contracts	29	4	(58)	(135)
Commodity Contracts	(3)	(436)	204	(959)
Other Income (Expense) - Net [Member]
Derivative [Line Items]
Interest Contracts	1	0	1	0
FX Contracts	85	(76)	30	(28)
Other Contracts	$ 0	$ (4)	$ 0	$ (5)