v3.26.3
Acquisitions, Dispositions and Other Transactions - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 02, 2026
Aug. 05, 2026
Dec. 17, 2025
Sep. 05, 2025
Apr. 17, 2025
Mar. 18, 2025
Mar. 02, 2025
Sep. 30, 2026
Sep. 25, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Business Combination [Line Items]                          
Goodwill $ 30,953               $ 30,953   $ 30,953   $ 37,703
Cash flows from investing activities                     0 $ 369  
Finite-lived intangible assets, period decrease                     15    
Goodwill, period increase                     14    
Increase in other noncurrent assets and liabilities, net                     1    
Investments in unconsolidated affiliates $ 1,122               $ 1,122   $ 1,122   $ 1,046
MoneyPass Group                          
Business Combination [Line Items]                          
Proceeds from related party debt     $ 218                    
MoneyPass Group                          
Business Combination [Line Items]                          
Percentage of interest owned in affiliate 49.00%   49.00%           49.00%   49.00%    
Investments in unconsolidated affiliates $ 107               $ 107   $ 107    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Student Loan Servicing Business                          
Business Combination [Line Items]                          
Proceeds from divestiture of businesses, net of cash divested   $ 85                      
Proceeds from divestiture of businesses 48                        
Contingent earn-out provisions   $ 52                      
Loss on disposition of business                 98        
Gain (loss) on disposition of business, tax effect                 6        
Disposal group, including discontinued operation, intangible assets 77               77   77    
Disposal group, including discontinued operation, goodwill 73               73   73    
Disposal group, including discontinued operation, other assets 33               33   33    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | MoneyPass Network, ATM Managed Services and Cash Intelligence Business                          
Business Combination [Line Items]                          
Proceeds from divestiture of businesses, net of cash divested     $ 102                    
Loss on disposition of business     (198)                    
Gain (loss) on disposition of business, tax effect     71                    
Disposal group, including discontinued operation, intangible assets     97                    
Disposal group, including discontinued operation, goodwill     $ 100                    
Ownership percentage in disposed asset     51.00%                    
Disposal group, including discontinued operation, long-term debt     $ 218                    
StoneCastle                          
Business Combination [Line Items]                          
Business combination, consideration transferred       $ 416                  
Cash acquired from acquisition       4                  
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles       165                  
Business combination, recognized identifiable assets acquired and liabilities assumed, other noncurrent assets       $ 8                  
StoneCastle | Acquired software and technology                          
Business Combination [Line Items]                          
Acquired finite-lived intangible assets, weighted average useful life       7 years                  
Goodwill       $ 247                  
CCV Group B.V.                          
Business Combination [Line Items]                          
Cash acquired from acquisition             $ 34            
Goodwill 120               120   120    
Business combination, recognized identifiable assets acquired and liabilities assumed, other noncurrent assets 24               24   24    
Cash flows from investing activities             $ 219            
CCV Group B.V. | Acquired software and technology                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles 2               2   $ 2    
Acquired finite-lived intangible assets, weighted average useful life                     1 year    
CCV Group B.V. | Customer relationships                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles 103               103   $ 103    
Acquired finite-lived intangible assets, weighted average useful life                     8 years    
CCV Group B.V. | Trademarks                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles $ 4               $ 4   $ 4    
Acquired finite-lived intangible assets, weighted average useful life                     2 years    
Payfare                          
Business Combination [Line Items]                          
Cash acquired from acquisition               $ 46          
Goodwill               56          
Business combination, recognized identifiable assets acquired and liabilities assumed, other noncurrent assets               49          
Cash flows from investing activities               95          
Payfare | Acquired software and technology                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles               $ 22          
Acquired finite-lived intangible assets, weighted average useful life               7 years          
Payfare | Customer relationships                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles               $ 14          
Acquired finite-lived intangible assets, weighted average useful life               14 years          
Pinch Payments, Money Money Acquisitions, and CardFree                          
Business Combination [Line Items]                          
Business combination, consideration transferred                   $ 127      
Goodwill                   73      
Earn-out provisions estimated fair value                   35      
Net assumed liabilities                   5      
Pinch Payments, Money Money Acquisitions, and CardFree | Acquired software and technology                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles                   $ 31      
Acquired finite-lived intangible assets, weighted average useful life                   7 years      
Pinch Payments, Money Money Acquisitions, and CardFree | Customer relationships                          
Business Combination [Line Items]                          
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles                   $ 18      
Acquired finite-lived intangible assets, weighted average useful life                   6 years      
AIBMS                          
Business Combination [Line Items]                          
Business combination, consideration transferred         $ 420                
Cash acquired from acquisition         $ 195                
Business combination, voting equity interest acquired, percentage         49.90%             49.90%  
ICICI Merchant Services Private Limited                          
Business Combination [Line Items]                          
Cash flows from investing activities           $ 22              
Business combination, voting equity interest acquired, percentage           19.00%           19.00%