Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Not Designated As Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative [Line Items]
Total gain (loss) recognized in earnings	$ 432	$ 79
Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Total gain (loss) recognized in earnings			(451)	174
Interest Expense [Member]
Derivative [Line Items]
Interest Contracts	0	0	0	0
Other Income (Expense) - Net [Member]
Derivative [Line Items]
Interest Contracts	0	0	0	0
FX Contracts	(15)	(10)	(24)	(55)
Revenues [Member]
Derivative [Line Items]
FX Contracts	(2)	36	(8)	109
Cost Of Products Sold [Member]
Derivative [Line Items]
FX Contracts	44	(86)	88	(87)
Commodity Contracts	$ 405	$ 139	$ (507)	$ 207