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Segment Information - Net Revenues by Product Segment and by Product Line (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 8,347	$ 6,973	$ 6,897
Product Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	8,318	6,945	6,874
Automotive and Discrete Group (ADG) [Member] | Product Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	3,059	2,813	2,731
Analog, MEMS & Sensors Group (AMS) [Member] | Product Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	2,613	1,847	1,851
Microcontrollers and Digital ICs Group (MDG) [Member] | Product Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	2,646	2,285	2,292
Others [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 29	$ 28	$ 23

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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