Revenue from Contracts with Customers - Disaggregation of Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 1,917	$ 1,836	$ 1,899
Americas
Disaggregation of Revenue [Line Items]
Revenue	1,044	1,025	1,057
EMEA
Disaggregation of Revenue [Line Items]
Revenue	543	485	492
APJ
Disaggregation of Revenue [Line Items]
Revenue	330	326	350
Recurring | Americas
Disaggregation of Revenue [Line Items]
Revenue	879	813	797
Recurring | EMEA
Disaggregation of Revenue [Line Items]
Revenue	371	312	254
Recurring | APJ
Disaggregation of Revenue [Line Items]
Revenue	214	184	166
Perpetual software licenses, hardware and other
Disaggregation of Revenue [Line Items]
Revenue	77	107	140
Perpetual software licenses, hardware and other | Americas
Disaggregation of Revenue [Line Items]
Revenue	24	47	50
Perpetual software licenses, hardware and other | EMEA
Disaggregation of Revenue [Line Items]
Revenue	37	39	58
Perpetual software licenses, hardware and other | APJ
Disaggregation of Revenue [Line Items]
Revenue	16	21	32
Consulting services | Americas
Disaggregation of Revenue [Line Items]
Revenue	141	165	210
Consulting services | EMEA
Disaggregation of Revenue [Line Items]
Revenue	135	134	180
Consulting services | APJ
Disaggregation of Revenue [Line Items]
Revenue	$ 100	$ 121	$ 152