0000001 - Document - COVER link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF CHANGES IN EQUITY link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - BASIS OF FINANCIAL STATEMENT PRESENTATION link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - DISCONTINUED OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - REVENUES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - RESTRUCTURING AND OTHER CHARGES link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - EARNINGS (LOSS) PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - STOCK COMPENSATION PLANS link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - TRANSACTIONS WITH FORMER PARENT link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - BASIS OF FINANCIAL STATEMENT PREPARATION (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - DISCONTINUED OPERATIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - REVENUES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - RESTRUCTURING AND OTHER CHARGES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - EARNINGS (LOSS) PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - STOCK COMPENSATION PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - TRANSACTIONS WITH FORMER PARENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - BASIS OF FINANCIAL STATEMENT PREPARATION (Details) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - DISCONTINUED OPERATIONS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - DISCONTINUED OPERATIONS - Earnings from Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - DISCONTINUED OPERATIONS - Earnings from Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - DISCONTINUED OPERATIONS - Significant Classes of Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - DISCONTINUED OPERATIONS - Schedule of Selected Information on Cash Flows Related to Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - REVENUES - Schedule of Revenue by Segment and Geography (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - REVENUES - Schedule of Capitalized Contract Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - REVENUES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - REVENUES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - REVENUES - Schedule of Accounts Receivable, Unbilled Services and Unearned Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - REVENUES - Rollforward of Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - RESTRUCTURING AND OTHER CHARGES - Schedule of Restructuring and Other Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - RESTRUCTURING AND OTHER CHARGES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - EARNINGS (LOSS) PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - EARNINGS (LOSS) PER SHARE - Reconciliation of Basic Earnings per Share to Diluted Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - EARNINGS (LOSS) PER SHARE - Antidilutive Securities Excluded from Computation (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - DEBT - Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Pre-tax Effects of Cash Flow Hedges (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Reclassified from Other Comprehensive Loss into Earnings (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Gain (Loss) for Derivative Contracts Not Designated as Hedges (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - STOCK COMPENSATION PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - STOCK COMPENSATION PLANS - Share-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Allocation of General Corporate and Other Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Net Transfers To and From Labcorp (Details) link:presentationLink link:calculationLink link:definitionLink 9954514 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Details) link:presentationLink link:calculationLink link:definitionLink 9954515 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Balance Sheets (Details) link:presentationLink link:calculationLink link:definitionLink 9954516 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Statements of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9954517 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Statements of Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9954518 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Changes in Equity (Details) link:presentationLink link:calculationLink link:definitionLink 9954519 - Disclosure - IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Statements of Cash Flow (Details) link:presentationLink link:calculationLink link:definitionLink