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Statement - CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - BASIS OF FINANCIAL STATEMENT PREPARATION link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - REVENUES link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - RESTRUCTURING AND OTHER CHARGES link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - EARNINGS (LOSS) PER SHARE link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - GOODWILL AND INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - STOCK COMPENSATION PLANS link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - TRANSACTIONS WITH FORMER PARENT link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - BUSINESS SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - BASIS OF FINANCIAL STATEMENT PREPARATION (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - REVENUES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - RESTRUCTURING AND OTHER CHARGES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - 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BUSINESS SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - BASIS OF FINANCIAL STATEMENT PREPARATION (Details) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - REVENUES - Summary of Revenue by Segment and Geography (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - REVENUES - Summary of Capitalized Contract Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - REVENUES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - REVENUES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - REVENUES - Schedule of Accounts Receivable, Unbilled Services and Unearned Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - REVENUES - Rollforward of Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - RESTRUCTURING AND OTHER CHARGES (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - EARNINGS (LOSS) PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - EARNINGS (LOSS) PER SHARE - Reconciliation of Basic Earnings per Share to Diluted Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - EARNINGS (LOSS) PER SHARE - Antidilutive Securities Excluded from Computation (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Components of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - DEBT - Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING - Schedule of Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - DERIVATIVE INSTRUMENTS AND HEDGING - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - STOCK COMPENSATION PLANS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - STOCK COMPENSATION PLANS - Schedule of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - STOCK COMPENSATION PLANS - Fair Value Estimates (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - STOCK COMPENSATION PLANS - Restricted Stock Units and Performance Shares (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - STOCK COMPENSATION PLANS - Share-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Allocation of General Corporate and Other Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - TRANSACTIONS WITH FORMER PARENT - Net Transfers To and From Labcorp (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - SUPPLEMENTAL CASH FLOW INFORMATION (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - BUSINESS SEGMENT INFORMATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - BUSINESS SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) link:presentationLink link:calculationLink link:definitionLink