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Segment Reporting - Consolidated Revenues by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue from External Customer [Line Items]
Sales	$ 10,794	$ 10,325	$ 31,296	$ 29,689
United States
Revenue from External Customer [Line Items]
Sales	5,030	4,594	13,425	13,096
Europe, Middle East and Africa
Revenue from External Customer [Line Items]
Sales	2,884	2,941	9,218	8,374
Asia Pacific
Revenue from External Customer [Line Items]
Sales	1,178	1,112	3,766	3,164
Japan
Revenue from External Customer [Line Items]
Sales	761	775	2,353	2,320
Latin America
Revenue from External Customer [Line Items]
Sales	622	585	1,748	1,654
Other
Revenue from External Customer [Line Items]
Sales	$ 319	$ 318	$ 786	$ 1,081

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No definition available.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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