2104100 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 2404401 - Disclosure - Acquisitions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2101100 - Disclosure - Basis Of Presentation link:presentationLink link:calculationLink link:definitionLink 2117100 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1006000 - Statement - Condensed Consolidated Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1004000 - Statement - Condensed Consolidated Statements of Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Condensed Consolidated Statements Of Operations link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 2406405 - Disclosure - Debt Carrying Value and Par Value of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Debt (Convertible Senior Notes Due 2040) (Details) link:presentationLink link:calculationLink link:definitionLink 2406404 - Disclosure - Debt (Debt Repurchase Program) (Details) link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Debt (Senior Secured Term Loans) (Details) link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - Discontinued Operations and Assets Held for Sale link:presentationLink link:calculationLink link:definitionLink 2405403 - Disclosure - Discontinued Operations And Assets Held for Sale (Components Of Assets And Liabilities Held For Sale) (Details) link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Discontinued Operations and Assets Held for Sale (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2405404 - Disclosure - Discontinued Operations and Assets Held for Sale (Results Of Operations From Discontinued Businesses) (Details) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Discontinued Operations and Assets Held for Sale (Tables) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 2113100 - Disclosure - Earnings Per Share (EPS) link:presentationLink link:calculationLink link:definitionLink 2413402 - Disclosure - Earnings Per Share (EPS) Schedule of Weighted Average Number of Shares (Details) link:presentationLink link:calculationLink link:definitionLink 2313301 - Disclosure - Earnings Per Share (EPS) (Tables) link:presentationLink link:calculationLink link:definitionLink 2413403 - Disclosure - Earnings Per Share (EPS) (Weighted Average Potential Anti-Dilutive Common Shares) (Details) link:presentationLink link:calculationLink link:definitionLink 2110100 - Disclosure - Equity-based Compensation link:presentationLink link:calculationLink link:definitionLink 2410403 - Disclosure - Equity-based Compensation (Assumptions Used To Value Equity-Based Payments) (Details) link:presentationLink link:calculationLink link:definitionLink 2410402 - Disclosure - Equity-based Compensation (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2310301 - Disclosure - Equity-based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 2410404 - Disclosure - Equity-based Compensation (Weighted Average Fair Value Per Share Of Equity-Based Awards) (Details) link:presentationLink link:calculationLink link:definitionLink 2109100 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 2409403 - Disclosure - Fair Value Measurements (Assets And Liabilities Measured And Recorded At Fair Value On A Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 2409405 - Disclosure - Fair Value Measurements (Outstanding Debt Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2209201 - Disclosure - Fair Value Measurements (Policies) link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - Fair Value Measurements (Summary Of Level 3 Auction Rate Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 2309302 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 2111100 - Disclosure - Goodwill and Other Intangible Assets link:presentationLink link:calculationLink link:definitionLink 2411404 - Disclosure - Goodwill and Other Intangible Assets (Estimated Amortization Expense In Future Periods) (Details) link:presentationLink link:calculationLink link:definitionLink 2411402 - Disclosure - Goodwill and Other Intangible Assets (Summary of Goodwill Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2411403 - Disclosure - Goodwill and Other Intangible Assets (Summary of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2311301 - Disclosure - Goodwill and Other Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 2114100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2414401 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Interest Rate Swaps And Caps link:presentationLink link:calculationLink link:definitionLink 2408401 - Disclosure - Interest Rate Swaps and Caps (Details) link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 2407402 - Disclosure - Investments (Available-For-Sale And Other Investment Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Investments (Available-For-Sale Debt Investments At Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2307301 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 2112100 - Disclosure - Restructuring and Asset Impairment Charges link:presentationLink link:calculationLink link:definitionLink 2412401 - Disclosure - Restructuring and Asset Impairment Charges (Details) link:presentationLink link:calculationLink link:definitionLink 2116100 - Disclosure - Stock Repurchase Program link:presentationLink link:calculationLink link:definitionLink 2416401 - Disclosure - Stock Repurchase Program (Details) link:presentationLink link:calculationLink link:definitionLink 2118100 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2418401 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Summary of Significant Accounting Policies Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink