0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Business Overview and Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Earnings Per Share, Share Repurchases and Dividends link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Revenues link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Goodwill and Intangible Assets (Notes) link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Debt Obligations link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Sales of Receivables link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Business Segments Information link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Legal Proceedings and Other Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Business Overview and Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Business Overview and Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Earnings Per Share, Share Repurchases and Dividends (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Revenues (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Debt Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Sales of Receivables (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Business Segments Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Business Overview and Summary of Significant Accounting Policies - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Business Overview and Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Earnings Per Share, Share Repurchases and Dividends - Reconciliation of Weighted Average Number of Shares Outstanding Used to Compute Basic and Diluted EPS (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Earnings Per Share, Share Repurchases and Dividends - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Revenues - Change in Estimates (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Revenues - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Revenues - Disaggregation of Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenues - Contract Related Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Acquisitions (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Goodwill and Intangible Assets - Schedule of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Goodwill and Intangible Assets Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Goodwill and Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Goodwill and Intangible Assets Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Income Taxes (Detail) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Debt Obligations - Long-term Debt (Detail) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Debt Obligations - Long-term Debt (Detail) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Debt Obligations - Narrative (Detail) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Debt Obligations - Long-term Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Sales of Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Sales of Receivables - Summary of Transfers of Financial Assets Accounted for as Sales (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Business Segments Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Business Segments Information - Summary of Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Business Segments Information - Summary of Reconciliation of Total Adjusted Operating Income to Income before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Legal Proceedings and Other Commitments and Contingencies (Detail) link:presentationLink link:calculationLink link:definitionLink