Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Not Designated As Hedging Instruments) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Derivative [Line Items]
Total gain (loss) recognized in earnings	$ 96	$ 166
Revenues [Member]
Derivative [Line Items]
FX Contracts	0	20
Cost Of Products Sold [Member]
Derivative [Line Items]
FX Contracts	107	(69)
Commodity Contracts	(10)	238
Other Income (Expense) [Member]
Derivative [Line Items]
FX Contracts	$ (1)	$ (23)

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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+ References

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments.

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