Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,327	$ 1,327
Accumulated Amortization	(1,050)	(1,036)
Reseller & customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	665	665
Accumulated Amortization	$ (448)	(438)
Reseller & customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	1 year
Reseller & customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	20 years
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 494	494
Accumulated Amortization	$ (437)	(433)
Intellectual property | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	2 years
Intellectual property | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	8 years
Customer contracts
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	8 years
Gross Carrying Amount	$ 89	89
Accumulated Amortization	(89)	(89)
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	79	79
Accumulated Amortization	$ (76)	$ (76)
Tradenames | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	1 year
Tradenames | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization Period (in Years)	10 years