Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income attributable to Quest Diagnostics	$ 854	$ 946	$ 1,995

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details