v3.26.1
Fair Value Measurements - Valuation Of Financial Instruments By Pricing Categories (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Jun. 30, 2025
Dec. 31, 2025
Assets [Abstract]      
Short-term investments $ 0   $ 0
Available-for-sale securities, current 87   89
Total assets measured at fair value 3,346   4,453
Contingent consideration:      
Total liabilities measured at fair value 882   995
Fair Value, Inputs, Level 1      
Assets [Abstract]      
Cash and cash equivalents 2,878   4,011
Short-term investments 0   0
Trading marketable securities 299   307
Total assets measured at fair value 3,177   4,318
Liabilities      
Deferred compensation arrangements 299   307
Contingent consideration:      
Total liabilities measured at fair value 299   307
Fair Value, Inputs, Level 2      
Assets [Abstract]      
Available-for-sale securities, current 87   89
Total assets measured at fair value 169   135
Contingent consideration:      
Total liabilities measured at fair value 102   170
Fair Value, Inputs, Level 2 | Foreign currency exchange forward contracts      
Assets [Abstract]      
Derivative asset 82   46
Liabilities      
Foreign currency exchange forward contracts 102   170
Fair Value, Inputs, Level 2 | Corporate and asset-backed debt securities      
Assets [Abstract]      
Available-for-sale securities, current 48   52
Fair Value, Inputs, Level 2 | United States treasury debt securities      
Assets [Abstract]      
Available-for-sale securities, current 39   37
Fair Value, Inputs, Level 3      
Contingent consideration:      
Beginning 518 $ 452  
Additions 0 123  
Change in estimate and foreign exchange 2 24  
Settlements (39) $ (81)  
Ending 481    
Total liabilities measured at fair value $ 481   $ 518