v3.26.1
Fair Value Measurements (Changes in Fair Value Of Level 3 Liabilities Representing Acquisition Related Contingent Consideration) (Details) - Contingent Consideration - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at beginning of period $ 268 $ 161
Net additions 1 5
Payments (18) (19)
Revaluation impact 11 9
Other 4 4
Balance at end of period $ 266 $ 160