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Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2401403 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Remaining Performance Obligations) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2122100 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2422404 - Disclosure - Commitments and Contingencies (Concentrations of Risk) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2422402 - Disclosure - Commitments and Contingencies (Investment Arrangements) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2422401 - Disclosure - Commitments and Contingencies (Legal, Letters of Credit, Bonds, Self-Insurance) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2422403 - Disclosure - Commitments and Contingencies (Other Guarantees) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 1003501 - Statement - Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1006000 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 1005000 - Statement - Consolidated Statements of Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - Consolidated Statements of Operations (Unaudited) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 2112100 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - Debt (Additional Information) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2412405 - Disclosure - Debt (Debt Guarantees and Covenants) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2412404 - Disclosure - Debt (Other Credit Facilities) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2412402 - Disclosure - Debt (Schedule of Carrying Values of Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 2412402 - Disclosure - Debt (Schedule of Carrying Values of Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 2412403 - Disclosure - Debt (Senior Secured Credit Facility) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2312301 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 2402402 - Disclosure - Earnings Per Share (Schedule of Earnings Per Share Information) (Details) link:presentationLink link:calculationLink link:definitionLink 2302301 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2117100 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 2417401 - Disclosure - Equity (Share Activity) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 2407401 - Disclosure - Fair Value of Financial Instruments (Acquisition-Related Contingent Consideration) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2407402 - Disclosure - Fair Value of Financial Instruments (Equity Investments) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2407405 - Disclosure - Fair Value of FInancial Instruments (Other Investments - Lifeshield) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2407404 - Disclosure - Fair Value of Financial Instruments (Other Investments - Pensare) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2407406 - Disclosure - Fair Value of Financial Instruments (Senior Notes) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Fair Value of Financial Instruments (The Waha JVs) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Goodwill and Other Intangible Assets link:presentationLink link:calculationLink link:definitionLink 2406406 - Disclosure - Goodwill and Other Intangible Assets (2018 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2406405 - Disclosure - Goodwill and Other Intangible Assets (2019 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2406407 - Disclosure - Goodwill and Other Intangible Assets (Pro Forma Financial Information and Acquisition Results) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2406404 - Disclosure - Goodwill and Other Intangible Assets (Rollforward of Other Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Goodwill and Other Intangible Assets (Schedule of Goodwill by Segment) (Details) link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Goodwill and Other Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 2118100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2418401 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2113100 - Disclosure - Lease Obligations link:presentationLink link:calculationLink link:definitionLink 2413402 - Disclosure - Lease Obligations (Additional Lease Information) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2413403 - Disclosure - Lease Obligations (Finance Leases) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2413404 - Disclosure - Lease Obligations (Operating Leases) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2413405 - Disclosure - Lease Obligations (Schedule of Future Minimum Lease Commitments) (Details) link:presentationLink link:calculationLink link:definitionLink 2413405 - Disclosure - Lease Obligations (Schedule of Future Minimum Lease Commitments) (Details) link:presentationLink link:calculationLink link:definitionLink 2313301 - Disclosure - Lease Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 2115100 - Disclosure - Other Retirement Plans link:presentationLink link:calculationLink link:definitionLink 2415402 - 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