v3.26.1
Debt - Narrative (Details)
€ in Millions
6 Months Ended
Mar. 10, 2026
USD ($)
Mar. 10, 2026
EUR (€)
Apr. 17, 2025
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Mar. 01, 2026
EUR (€)
Jan. 09, 2026
USD ($)
Dec. 31, 2025
USD ($)
Nov. 06, 2025
USD ($)
Nov. 05, 2025
USD ($)
May 01, 2025
USD ($)
Debt Instrument                      
Other long-term debt       $ (173,000,000)       $ (192,000,000)      
Weighted average interest rate, excluding cross currency interest rate swaps       4.20%              
Debt, weighted average interest rate       3.80%              
Repayments of long-term debt       $ 54,186,000,000 $ 23,832,000,000            
Difference in carrying value and fair value of long term debt       716,000,000       $ 619,000,000      
Revolving Credit Facility                      
Debt Instrument                      
Credit facility outstanding                 $ 6,000,000,000.0 $ 4,500,000,000  
Borrowing capacity remaining       2,600,000,000              
Line of credit facility, capacity backstopped       4,200,000,000              
Incremental Revolving Credit Facility                      
Debt Instrument                      
Credit facility outstanding                 $ 1,000,000,000.0    
Unsecured Debt | Issuer Solutions Acquisition                      
Debt Instrument                      
Credit facility outstanding             $ 7,700,000,000        
Commercial Paper                      
Debt Instrument                      
Commercial paper       7,000,000,000.0              
Credit facility outstanding       167,000,000              
Line of Credit | Revolving Credit Facility                      
Debt Instrument                      
Mandatory principal payment       $ 0              
Senior USD Notes | Senior Notes                      
Debt Instrument                      
Repayments of long-term debt $ 6,300,000,000                    
Fixed Rate Senior USD Notes Due 2028 | Senior Notes                      
Debt Instrument                      
Interest rates 4.45% 4.45%                  
Fixed Rate Senior USD Notes Due 2029 | Senior Notes                      
Debt Instrument                      
Interest rates 4.55% 4.55%                  
Fixed Rate Senior USD Notes Due 2031 | Senior Notes                      
Debt Instrument                      
Interest rates 4.80% 4.80%                  
Senior USD Floating Rate Notes Due 2029 | Senior Notes                      
Debt Instrument                      
Repayments of long-term debt $ 500,000,000                    
Fixed Rate Senior Euro Notes Due 2030 | Senior Notes                      
Debt Instrument                      
Repayments of long-term debt | €   € 500                  
Interest rates 3.45% 3.45%                  
Fixed Rate Senior Euro Notes Due 2028 | Senior Notes                      
Debt Instrument                      
Repayments of long-term debt | €   € 500                  
Senior Euro Notes | Senior Notes                      
Debt Instrument                      
Interest rates           1.15%          
Principle amount of debt | €           € 1,250          
Senior Unsecured Bridge Term Loan Facility | Bridge Loan | Line of Credit                      
Debt Instrument                      
Credit facility outstanding     $ 8,000,000,000.0               $ 0
Credit facility, expiration period     364 days                
Term Facility | Line of Credit | Secured Debt                      
Debt Instrument                      
Credit facility outstanding                     $ 8,000,000,000.0