v3.26.1
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Statement [Abstract]        
Net revenues $ 3,043 $ 2,761 $ 5,938 $ 5,413
Operating costs and expenses and other operating income:        
Cost of services 2,016 1,818 3,969 3,607
Selling, general and administrative 529 486 1,033 962
Amortization of intangible assets 38 39 75 78
Other operating expense (income), net 1 (20) 3 (18)
Total operating costs and expenses, net 2,584 2,323 5,080 4,629
Operating income 459 438 858 784
Other income (expense):        
Interest expense, net (63) (67) (126) (134)
Other income, net 16 13 14 10
Total non-operating expense, net (47) (54) (112) (124)
Income before income taxes and equity in earnings of equity method investees 412 384 746 660
Income tax expense (88) (97) (162) (156)
Equity in earnings of equity method investees, net of taxes 10 9 14 27
Net income 334 296 598 531
Less: Net income attributable to noncontrolling interests 14 14 26 29
Net income attributable to Quest Diagnostics $ 320 $ 282 $ 572 $ 502
Earnings per share attributable to Quest Diagnostics’ common stockholders:        
Basic (in dollars per share) $ 2.88 $ 2.51 $ 5.15 $ 4.48
Diluted (in dollars per share) $ 2.84 $ 2.47 $ 5.08 $ 4.41
Weighted average common shares outstanding:        
Basic (in shares) 111 112 110 112
Diluted (in shares) 112 113 112 113