v3.26.1
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Income Statement [Abstract]    
Net revenues $ 2,895 $ 2,652
Operating costs and expenses and other operating income:    
Cost of services 1,953 1,789
Selling, general and administrative 504 476
Amortization of intangible assets 37 39
Other operating expense, net 2 2
Total operating costs and expenses, net 2,496 2,306
Operating income 399 346
Other income (expense):    
Interest expense, net (63) (67)
Other expense, net (2) (3)
Total non-operating expense, net (65) (70)
Income before income taxes and equity in earnings of equity method investees 334 276
Income tax expense (74) (59)
Equity in earnings of equity method investees, net of taxes 4 18
Net income 264 235
Less: Net income attributable to noncontrolling interests 12 15
Net income attributable to Quest Diagnostics $ 252 $ 220
Earnings per share attributable to Quest Diagnostics’ common stockholders:    
Basic (in dollars per share) $ 2.27 $ 1.97
Diluted (in dollars per share) $ 2.24 $ 1.94
Weighted average common shares outstanding:    
Basic (in Shares) 110 111
Diluted (in Shares) 112 113