0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Balance Sheet (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Changes in Common Stockholders' Equity Statement link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Organization, Basis of Presentation and Recent Accounting Pronouncements link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Acquisitions and Dispositions of Businesses link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Accounts Receivable, Accounts Payable, Vehicle Floor Plan Payable and Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Inventories and Contracts in Progress link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Goodwill and Other Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Revenue from Contracts with Customers link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Pension Plans link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Other Non-Operating Expense link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Business Segments link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Organization, Basis of Presentation And Recent Accounting Pronouncements (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Organization, Basis of Presentation and Recent Accounting Pronouncements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Acquisitions and Dispositions of Businesses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Accounts Receivable, Accounts Payable, Vehicle Floor Plan Payable and Accrued Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Inventories and Contracts in Progress (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Goodwill and Other Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Revenue from Contracts with Customers (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Pension Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Other Non-Operating Expense (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Business Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Organization, Basis of Presentation and Recent Accounting Pronouncements (Organization and Basis of Presentation) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Acquisitions and Dispositions of Businesses (Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Acquisitions and Dispositions of Businesses (Dispositions and Other) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Acquisitions and Dispositions of Businesses (Assets Acquired and Liabilities Assumed) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Acquisitions and Dispositions of Businesses (Pro Forma Financials) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Acquisitions and Dispositions of Businesses (Assets and Liabilities of Businesses Classified as Held for Sale (Details 3) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Investments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Investments (Investments in Marketable Equity Securities) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Investments (Net (Loss) Gain on Marketable Equity Securities) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Accounts Receivable, Accounts Payable, Vehicle Floor Plan Payable and Accrued Liabilities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Accounts Receivable, Accounts Payable, Vehicle Floor Plan Payable and Accrued Liabilities (Schedule of Accounts Receivable) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Accounts Receivable, Accounts Payable, Vehicle Floor Plan Payable and Accrued Liabilities (Schedule of Accounts Payable and Accrued Liabilities) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Inventories and Contracts in Progress (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Goodwill and Other Intangible Assets (Goodwill) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Goodwill and Other Intangible Assets (Other Intangible Assets) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Goodwill and Other Intangible Assets (Other Intangible Assets) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Debt (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Fair Value Measurements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Fair Value Measurements (Fair Value of Financial Assets and Liabilities) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Fair Value Measurements (Reconciliation of Changes in Financial Liabilities Fair Value Using Level 3 Inputs) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Revenue from Contracts with Customers (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Revenue from Contracts with Customers (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Revenue from Contracts with Customers (Narrative 2) (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Revenue from Contracts with Customers (Narrative 2) (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Revenue from Contracts with Customers (Contract Liability) (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Revenue from Contracts with Customers (Capitalized Contract Cost) (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Earnings Per Share (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Earnings Per Share (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Earnings Per Share (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Pension Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Pension Plans (Total Benefit/Cost) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Pension Plans (Asset Allocation) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Other Non-Operating Expense (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Components of OCI) (Details 1) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Accumulated Other Comprehensive Income (Loss) (AOCI balances) (Details 2) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Reclassifications out of AOCI) (Details 3) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Business Segments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Business Segments (Information by Operating Segment) (Details 1) link:presentationLink link:calculationLink link:definitionLink