v3.26.1
Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2025
EBP 333  
EBP, Investment, Fair Value and NAV [Line Items]  
EBP, Investment, Fair Value and NAV The following table provides a summary of the assets in the Plan that are measured at fair value on a recurring basis:
Basis of Fair Value Measurements
December 31, 2025TotalLevel 1Level 2Level 3
Mutual funds$212,232 $212,232 $— $— 
Quest Diagnostics common stock310,165 310,165 — — 
Other common stock287,320 287,320 — — 
Subtotal$809,717 $809,717 $— $— 
Investments measured at NAV as a practical expedient: (A)5,348,400 
Total investments, at fair value$6,158,117 


Basis of Fair Value Measurements
December 31, 2024TotalLevel 1Level 2Level 3
Mutual funds$204,410 $204,410 $— $— 
Quest Diagnostics common stock295,103 295,103 — — 
Other common stock282,820 282,743 — 77 
Subtotal$782,333 $782,256 $— $77 
Investments measured at NAV as a practical expedient: (A)4,700,973 
Total investments, at fair value$5,483,306 

    
(A)    Certain investments, including the Collective Funds, that were measured at fair value using the net asset value ("NAV") per share (or its equivalent) practical expedient were not classified in the fair value hierarchy. There are no unfunded commitments or redemption restrictions related to these investments.