Revenue from Contracts with Customers - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Mar. 31, 2024 USD ($) line_of_business	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of lines of business	2	2
Deferred revenue	$ 135	$ 135	$ 135	$ 133
Amount of deferred revenue recognized			$ 63
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenue, remaining performance obligation, percentage	50.00%	50.00%	50.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01 | Software License Sales & SaaS
Accounts, Notes, Loans and Financing Receivable [Line Items]
Remaining performance obligation	$ 1,530	$ 1,530	$ 1,530
Revenue, remaining performance obligation, expected timing of satisfaction, period (in years)	3 years	3 years	3 years
Accrued Interest and Fees Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables related to contracts with customers	$ 2,900	$ 2,900	$ 2,900	$ 2,720