Restructuring Activities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Restructuring Cost and Reserve [Line Items]
Expected additional restructuring charges	$ 65
Restructuring costs	51
Cost of revenue, excluding technology costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 7
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of revenue, excluding technology costs
Technology costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 21
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Technology costs
Selling, general and administrative costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 23
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, General and Administrative Expense