BUSINESS ACQUISITIONS - Pro Forma (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended |
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Jun. 30, 2024 |
Jun. 30, 2024 |
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| Business Combination [Abstract] | ||
| Pro forma net revenues | $ 2,577 | $ 5,112 |
| Pro forma net income attributable to Quest Diagnostics | $ 234 | $ 425 |
| Pro forma earnings per share attributable to Quest Diagnostics' common stockholders: | ||
| Basic (in dollars per share) | $ 2.09 | $ 3.80 |
| Diluted (in dollars per share) | $ 2.07 | $ 3.77 |
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- Definition Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted [Abstract] No definition available.
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- Definition Per basic share amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Per diluted share amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of pro forma revenue of combined entity as if acquisition date of business combination occurred as of beginning of period. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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