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Segment and Other Supplemental Information - Regional Segment Revenue and Gross Margin for Company (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information
Segment revenue	$ 457	$ 478	$ 891	$ 946
Gross profit	256	236	481	460
Selling, general and administrative expenses	165	145	323	296
Research and development expenses	83	81	156	159
Income from operations	8	10	2	5
Americas
Segment Reporting Information
Segment revenue	259	269	503	538
EMEA
Segment Reporting Information
Segment revenue	118	122	236	235
APJ
Segment Reporting Information
Segment revenue	80	87	152	173
Operating segments
Segment Reporting Information
Gross profit	269	252	504	493
Operating segments | Americas
Segment Reporting Information
Gross profit	161	158	305	315
Operating segments | EMEA
Segment Reporting Information
Gross profit	67	57	128	107
Operating segments | APJ
Segment Reporting Information
Gross profit	41	37	71	71
Segment reconciling items
Segment Reporting Information
Stock-based compensation costs	4	4	8	7
Acquisition, integration, reorganization and transformation-related costs	4	2	4	5
Amortization of capitalized software costs	$ 5	$ 10	$ 11	$ 21

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