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Segment and Other Supplemental Information - Regional Segment Revenue and Gross Margin for Company (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information
Segment revenue	$ 454	$ 459	$ 1,345	$ 1,405
Gross profit	254	247	735	707
Selling, general and administrative expenses	163	151	486	447
Research and development expenses	90	86	246	245
Income from operations	1	10	3	15
Americas
Segment Reporting Information
Segment revenue	261	256	764	794
EMEA
Segment Reporting Information
Segment revenue	115	118	351	353
APJ
Segment Reporting Information
Segment revenue	78	85	230	258
Operating segments
Segment Reporting Information
Gross profit	277	257	781	750
Operating segments | Americas
Segment Reporting Information
Gross profit	165	158	470	473
Operating segments | EMEA
Segment Reporting Information
Gross profit	69	62	197	169
Operating segments | APJ
Segment Reporting Information
Gross profit	43	37	114	108
Segment reconciling items
Segment Reporting Information
Stock-based compensation costs	5	5	13	12
Acquisition, integration, reorganization and transformation-related costs	12	(1)	16	4
Amortization of capitalized software costs	$ 6	$ 6	$ 17	$ 27

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