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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Statement of Comprehensive Income [Abstract]        
Net income $ 249 $ 250 $ 466 $ 623
Other comprehensive income (loss):        
Foreign currency translation adjustment 2 (7) 5 (9)
Other comprehensive income (loss) 2 (7) 5 (9)
Comprehensive income 251 243 471 614
Less: Comprehensive income attributable to noncontrolling interests 14 16 29 34
Comprehensive income attributable to Quest Diagnostics $ 237 $ 227 $ 442 $ 580