v3.26.3
Business Combinations, Asset Acquisitions, and Joint Venture Formation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jun. 05, 2026
May 21, 2025
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2026
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Incurred                 $ 1
Net Carrying Value     $ 115       $ 115   109
Goodwill, Foreign Currency Translation, Gain (Loss)     (1) $ 1 $ (2)        
Business Combination [Line Items]                  
Business Combination, Price of Acquisition, Expected     7 20          
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment     1       1    
Finite-Lived Intangible Assets, Gross     15       15    
Business Combination, Recognized Liability Assumed, Deferred Tax Liability     4       4    
Business Combination, Separately Recognized Transactions, Liabilities Recognized     9       9    
Net Carrying Value     115       115   109
Asset Acquisition, Consideration Transferred, Contingent Consideration     5            
Payment for Contingent Consideration Liability, Financing Activities             13 $ 0  
Foreign currency       $ (1) $ 18   17 $ 4  
UX Acquisition                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash   $ 9              
Business Combination, Consideration Transferred $ 55                
Business Combination [Line Items]                  
Business Combination, Consideration Transferred 55                
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash   $ 9              
Software Architecture Acquisition                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash 16                
Business Combination, Consideration Transferred 25                
Business Combination [Line Items]                  
Business Combination, Consideration Transferred 25                
Business Combination, Price of Acquisition, Expected 30                
Cash 5                
Accounts Receivable, Net, Current 4                
Finite-Lived Intangible Assets, Gross 1                
Business Combination, Recognized Asset Acquired, Asset 26                
Business Combination, Recognized Liability Assumed, Other Liability, Current 5                
Asset Acquisition, Consideration Transferred 2                
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill 13                
Business Combination, Consideration Transferred, Tangible and Intangible Assets, Excluding Cash 16                
Cash Acquired from Acquisition $ 23                
Customer-Related Intangible Assets                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Net Carrying Value                 68
Business Combination [Line Items]                  
Net Carrying Value                 68
Intangible Asset, Finite-Lived, Acquired     14           32
Trade Names                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Net Carrying Value     8       8   7
Business Combination [Line Items]                  
Net Carrying Value     8       8   7
Acquired Trade Names                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Net Carrying Value     1       1   5
Business Combination [Line Items]                  
Net Carrying Value     $ 1       $ 1   $ 5
UX Acquisition                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Goodwill, Measurement Period Adjustment           $ 2      
Business Combination [Line Items]                  
Goodwill, Measurement Period Adjustment           2      
UX Acquisition                  
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]                  
Goodwill, Measurement Period Adjustment           1      
Business Combination [Line Items]                  
Goodwill, Measurement Period Adjustment           1      
Goodwill, Transfers           3      
UX Acquisition                  
Business Combination [Line Items]                  
Business Combination, Contingent Consideration, Change in Contingent Consideration, Asset, Increase (Decrease)           $ 1