99900 - Disclosure - Standard And Custom Axis Domain Defaults link:presentationLink link:calculationLink link:definitionLink 995200100 - Statement - CONSOLIDATED INCOME STATEMENT link:presentationLink link:calculationLink link:definitionLink 995200200 - Statement - CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 995200300 - Statement - CONSOLIDATED BALANCE SHEET link:presentationLink link:calculationLink link:definitionLink 995200400 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 99940402 - Disclosure - SEGMENTS - Results of segments (Details) link:presentationLink link:calculationLink link:definitionLink 99940403 - Disclosure - SEGMENTS - Reconciliation of segment adjusted EBITDA to consolidated pretax income (loss) (Details) link:presentationLink link:calculationLink link:definitionLink 99940701 - Disclosure - FINANCIAL ASSETS AND LIABILITIES - Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 99940801 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL - Intangible Assets by Class (Details) link:presentationLink link:calculationLink link:definitionLink 99940901 - Disclosure - BORROWINGS - Debt (Details) link:presentationLink link:calculationLink link:definitionLink 99940902 - Disclosure - BORROWINGS - Contractual obligations of long-term debt outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 99941101 - Disclosure - EQUITY - Reclassifications and Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 99941201 - Disclosure - RETIREMENT-RELATED BENEFITS - Net Periodic Pension Cost for Defined Benefit Pension Plans (Details) link:presentationLink link:calculationLink link:definitionLink 995200090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 995200305 - Statement - CONSOLIDATED BALANCE SHEET (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 995200500 - Statement - CONSOLIDATED STATEMENT OF EQUITY link:presentationLink link:calculationLink link:definitionLink 99940101 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES - Description of Business (Details) link:presentationLink link:calculationLink link:definitionLink 99940302 - Disclosure - REVENUE RECOGNITION - Remaining Performance Obligations, Expected Timing of Satisfaction (Details) link:presentationLink link:calculationLink link:definitionLink 40302 - Disclosure - REVENUE RECOGNITION - Remaining Performance Obligations, Expected Timing of Satisfaction Default (Details) link:presentationLink link:calculationLink link:definitionLink 99940305 - Disclosure - REVENUE RECOGNITION - Allowance for Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 99940306 - Disclosure - REVENUE RECOGNITION - Major Clients (Details) link:presentationLink link:calculationLink link:definitionLink 99940307 - Disclosure - REVENUE RECOGNITION - Deferred Costs (Details) link:presentationLink link:calculationLink link:definitionLink 99940401 - Disclosure - SEGMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 99940501 - Disclosure - TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 99940601 - Disclosure - EARNINGS PER SHARE - Computation of basic and diluted earnings per share (Details) link:presentationLink link:calculationLink link:definitionLink 99940602 - Disclosure - EARNINGS PER SHARE - Anti dilutive securities (Details) link:presentationLink link:calculationLink link:definitionLink 99940702 - Disclosure - FINANCIAL ASSETS AND LIABILITIES - Not Measured at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 99940703 - Disclosure - FINANCIAL ASSETS AND LIABILITIES - Derivative Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 99940704 - Disclosure - FINANCIAL ASSETS AND LIABILITIES - Foreign Exchange Risk (Details) link:presentationLink link:calculationLink link:definitionLink 99940705 - Disclosure - FINANCIAL ASSETS AND LIABILITIES - Gains and Losses (Details) link:presentationLink link:calculationLink link:definitionLink 99940802 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL - Intangible Assets Activity (Details) link:presentationLink link:calculationLink link:definitionLink 99940803 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL - Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 99940804 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL - Goodwill by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 99940903 - Disclosure - BORROWINGS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 99941102 - Disclosure - EQUITY - AOCI Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 99941103 - Disclosure - EQUITY - Share Repurchase Program (Details) link:presentationLink link:calculationLink link:definitionLink 99941301 - Disclosure - WORKFORCE REBALANCING AND SITE-RATIONALIZATION CHARGES (Details) link:presentationLink link:calculationLink link:definitionLink 99941302 - Disclosure - WORKFORCE REBALANCING AND SITE-RATIONALIZATION CHARGES - Classification of restructuring activity (Details) link:presentationLink link:calculationLink link:definitionLink 99941303 - Disclosure - WORKFORCE REBALANCING AND SITE-RATIONALIZATION CHARGES - Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 995210101 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 995210201 - Disclosure - ACCOUNTING PRONOUNCEMENTS link:presentationLink link:calculationLink link:definitionLink 995210301 - Disclosure - REVENUE RECOGNITION link:presentationLink link:calculationLink link:definitionLink 995210401 - Disclosure - SEGMENTS link:presentationLink link:calculationLink link:definitionLink 995210501 - Disclosure - TAXES link:presentationLink link:calculationLink link:definitionLink 995210601 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 995210701 - Disclosure - FINANCIAL ASSETS AND LIABILITIES link:presentationLink link:calculationLink link:definitionLink 995210801 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL link:presentationLink link:calculationLink link:definitionLink 995210901 - Disclosure - BORROWINGS link:presentationLink link:calculationLink link:definitionLink 995211001 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 995211101 - Disclosure - EQUITY link:presentationLink link:calculationLink link:definitionLink 995211201 - Disclosure - RETIREMENT-RELATED BENEFITS link:presentationLink link:calculationLink link:definitionLink 995211301 - Disclosure - WORKFORCE REBALANCING AND SITE-RATIONALIZATION CHARGES link:presentationLink link:calculationLink link:definitionLink 99920102 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 99930303 - Disclosure - REVENUE RECOGNITION (Tables) link:presentationLink link:calculationLink link:definitionLink 99930403 - Disclosure - SEGMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 99930603 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 99930703 - Disclosure - FINANCIAL ASSETS AND LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 99930803 - Disclosure - INTANGIBLE ASSETS INCLUDING GOODWILL (Tables) link:presentationLink link:calculationLink link:definitionLink 99930903 - Disclosure - BORROWINGS (Tables) link:presentationLink link:calculationLink link:definitionLink 99931103 - Disclosure - EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 99931203 - Disclosure - RETIREMENT-RELATED BENEFITS (Tables) link:presentationLink link:calculationLink link:definitionLink 99931303 - Disclosure - WORKFORCE REBALANCING AND SITE-RATIONALIZATION CHARGES (Tables) link:presentationLink link:calculationLink link:definitionLink 99940301 - Disclosure - REVENUE RECOGNITION - Remaining Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 99940303 - Disclosure - REVENUE RECOGNITION - Performance Obligations Satisfied or Partially Satisfied in Prior Periods (Details) link:presentationLink link:calculationLink link:definitionLink 99940304 - Disclosure - REVENUE RECOGNITION - Reconciliation of Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink