Financial Instruments, Derivatives and Fair Value Measures - Derivative Instruments, Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net investment hedges \| Designated as hedging instrument
Gain (loss) on derivatives
Gain (loss) Recognized in Other Comprehensive Income (loss)	$ (45)	$ 11	$ (77)	$ 14
Interest rate swaps \| Fair value hedges \| Designated as hedging instrument \| Interest expense
Gain (loss) on derivatives
Income (expense) and Gain (loss) Reclassified into Income	44	(63)	145	(14)
Foreign currency forward exchange contracts. \| Not designated as hedging instrument \| Net foreign exchange loss (gain)
Gain (loss) on derivatives
Income (expense) and Gain (loss) Reclassified into Income	20	85	18	101
Foreign currency forward exchange contracts. \| Cash flow hedges \| Designated as hedging instrument \| Cost of products sold
Gain (loss) on derivatives
Gain (loss) Recognized in Other Comprehensive Income (loss)	7	5	(51)	48
Income (expense) and Gain (loss) Reclassified into Income	$ 23	$ 30	$ 54	$ 47

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- Definition

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying 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 (c)
-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 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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