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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, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 491	$ 434
Americas
Disaggregation of Revenue [Line Items]
Revenue	263	244
EMEA
Disaggregation of Revenue [Line Items]
Revenue	147	118
APJ
Disaggregation of Revenue [Line Items]
Revenue	81	72
Recurring | Americas
Disaggregation of Revenue [Line Items]
Revenue	218	196
Recurring | EMEA
Disaggregation of Revenue [Line Items]
Revenue	101	73
Recurring | APJ
Disaggregation of Revenue [Line Items]
Revenue	53	42
Perpetual software licenses, hardware and other | Americas
Disaggregation of Revenue [Line Items]
Revenue	7	7
Perpetual software licenses, hardware and other | EMEA
Disaggregation of Revenue [Line Items]
Revenue	13	13
Perpetual software licenses, hardware and other | APJ
Disaggregation of Revenue [Line Items]
Revenue	3	3
Consulting services | Americas
Disaggregation of Revenue [Line Items]
Revenue	38	41
Consulting services | EMEA
Disaggregation of Revenue [Line Items]
Revenue	33	32
Consulting services | APJ
Disaggregation of Revenue [Line Items]
Revenue	$ 25	$ 27

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+ References

No definition available.

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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
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