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Segment Reporting - Consolidated Revenues by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue from External Customer [Line Items]
Sales	$ 10,465	$ 9,930	$ 20,502	$ 19,365
United States
Revenue from External Customer [Line Items]
Sales	4,243	4,308	8,376	8,503
Europe, Middle East and Africa
Revenue from External Customer [Line Items]
Sales	3,144	2,804	6,334	5,433
Asia Pacific
Revenue from External Customer [Line Items]
Sales	1,350	1,056	2,588	2,054
Japan
Revenue from External Customer [Line Items]
Sales	855	839	1,592	1,544
Latin America
Revenue from External Customer [Line Items]
Sales	594	583	1,126	1,068
Other
Revenue from External Customer [Line Items]
Sales	$ 279	$ 340	$ 486	$ 763

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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
-Topic 280
-SubTopic 10
-Section 50
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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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-Publisher FASB
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