v3.25.4
Fair Value Measurements (Valuation Of Financial Instruments By Pricing Categories) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Assets    
Available-for-sale marketable securities: $ 89 $ 91
Total assets measured at fair value 4,453 4,977
Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]    
Total liabilities measured at fair value 995 788
(Level 1)    
Assets    
Available-for-sale marketable securities 4,011 3,652
Short-term investments 0 750
Trading marketable securities 307 259
Total assets measured at fair value 4,318 4,661
Liabilities:    
Deferred compensation arrangements 307 259
Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]    
Total liabilities measured at fair value 307 259
(Level 2)    
Assets    
Available-for-sale marketable securities: 89 91
Total assets measured at fair value 135 316
Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]    
Total liabilities measured at fair value 170 77
(Level 2) | Corporate and asset-backed debt securities    
Assets    
Available-for-sale marketable securities: 52 53
(Level 2) | United States agency debt securities    
Assets    
Available-for-sale marketable securities: 0 1
(Level 2) | United States treasury debt securities    
Assets    
Available-for-sale marketable securities: 37 34
(Level 2) | Certificates of deposit    
Assets    
Available-for-sale marketable securities: 0 3
(Level 2) | Foreign currency exchange forward contracts    
Assets    
Foreign currency exchange forward contracts 46 225
Interest rate swap asset 46 225
Liabilities:    
Foreign currency exchange forward contracts 170 77
(Level 3)    
Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]    
Beginning 452 289
Additions 123 208
Change in estimate and foreign exchange 24 8
Settlements (81) (53)
Ending 518 452
Total liabilities measured at fair value $ 518 $ 452