v3.25.2
BUSINESS SEGMENT INFORMATION (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Percentage of net revenues 100.00% 100.00% 100.00% 100.00%
Total net revenues $ 2,761 $ 2,397 $ 5,413 $ 4,763
Segment operating income 438 355 784 655
Non-operating expense, net (54) (41) (124) (75)
Income before income taxes and equity in earnings of equity method investees 384 314 660 580
Income tax expense (97) (74) (156) (140)
Equity in earnings of equity method investees, net of taxes 9 0 27 8
Net income 296 240 531 448
Less: Net income attributable to noncontrolling interests 14 11 29 25
Net income attributable to Quest Diagnostics 282 229 502 423
Depreciation and amortization $ 143 $ 117 $ 283 $ 233
DIS business        
Segment Reporting Information [Line Items]        
Percentage of net revenues 98.00% 97.00% 98.00% 97.00%
Total net revenues $ 2,699 $ 2,333 $ 5,288 $ 4,631
Less: Other segment items 2,205 1,913 4,380 3,838
Segment operating income 494 420 908 793
Depreciation and amortization 100 84 197 168
All other operating segments        
Segment Reporting Information [Line Items]        
Total net revenues 62 64 125 132
Segment operating income 7 8 15 17
Depreciation and amortization 3 3 7 6
General corporate activities        
Segment Reporting Information [Line Items]        
Segment operating income (63) (73) (139) (155)
Depreciation and amortization $ 40 $ 30 $ 79 $ 59
Minimum | DIS business        
Segment Reporting Information [Line Items]        
Percentage of net revenues 97.00% 97.00% 97.00% 97.00%