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Revenue from Contracts with Customers - Disaggregation of Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 496	$ 491
Americas
Disaggregation of Revenue [Line Items]
Revenue	290	263
EMEA
Disaggregation of Revenue [Line Items]
Revenue	129	147
APJ
Disaggregation of Revenue [Line Items]
Revenue	77	81
Recurring
Disaggregation of Revenue [Line Items]
Revenue	386	372
Recurring | Americas
Disaggregation of Revenue [Line Items]
Revenue	246	218
Recurring | EMEA
Disaggregation of Revenue [Line Items]
Revenue	89	101
Recurring | APJ
Disaggregation of Revenue [Line Items]
Revenue	51	53
Perpetual software licenses, hardware and other
Disaggregation of Revenue [Line Items]
Revenue	26	23
Perpetual software licenses, hardware and other | Americas
Disaggregation of Revenue [Line Items]
Revenue	12	7
Perpetual software licenses, hardware and other | EMEA
Disaggregation of Revenue [Line Items]
Revenue	11	13
Perpetual software licenses, hardware and other | APJ
Disaggregation of Revenue [Line Items]
Revenue	3	3
Consulting services
Disaggregation of Revenue [Line Items]
Revenue	84	96
Consulting services | Americas
Disaggregation of Revenue [Line Items]
Revenue	32	38
Consulting services | EMEA
Disaggregation of Revenue [Line Items]
Revenue	29	33
Consulting services | APJ
Disaggregation of Revenue [Line Items]
Revenue	$ 23	$ 25

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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