00100 - Statement - Condensed Consolidated Statements of Income link:presentationLink link:calculationLink link:definitionLink 00200 - Statement - Condensed Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 00300 - Statement - Condensed Consolidated Statements of Financial Position link:presentationLink link:calculationLink link:definitionLink 00400 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 40502 - Disclosure - Stock-based Compensation (Schedule Of Compensation) (Details) link:presentationLink link:calculationLink link:definitionLink 40603 - Disclosure - Retirement Plans (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - Other Income (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 41201 - Disclosure - Properties (Details) link:presentationLink link:calculationLink link:definitionLink 41301 - Disclosure - Accounts Payable And Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 00090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 00205 - Statement - Condensed Consolidated Statements of Comprehensive Income (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 00305 - Statement - Condensed Consolidated Statements of Financial Position (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 00500 - Statement - Condensed Consolidated Statements of Changes in Common Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 00505 - Statement - Condensed Consolidated Statements of Changes in Common Shareholders' Equity (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - Basis Of Presentation link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - Accounting Pronouncements link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - Operations and Segmentation link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - Stock-based Compensation link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - Retirement Plans link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - Other Income link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - Accumulated Other Comprehensive Income/(Loss) link:presentationLink link:calculationLink link:definitionLink 11101 - Disclosure - Accounts Receivable link:presentationLink link:calculationLink link:definitionLink 11201 - Disclosure - Properties link:presentationLink link:calculationLink link:definitionLink 11301 - Disclosure - Accounts Payable and Other Current Liabilities link:presentationLink link:calculationLink link:definitionLink 11401 - Disclosure - Financial Instruments link:presentationLink link:calculationLink link:definitionLink 11501 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 11601 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 11701 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 11801 - Disclosure - Share Repurchase Program link:presentationLink link:calculationLink link:definitionLink 11901 - Disclosure - Related Parties link:presentationLink link:calculationLink link:definitionLink 30303 - Disclosure - Operations and Segmentation (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - Stock-based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 30603 - Disclosure - Retirement Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 30703 - Disclosure - Other Income (Tables) link:presentationLink link:calculationLink link:definitionLink 30903 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 31003 - Disclosure - Accumulated Other Comprehensive Income/(Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 31203 - Disclosure - Properties (Tables) link:presentationLink link:calculationLink link:definitionLink 31303 - Disclosure - Accounts Payable And Other Current Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 31503 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 31703 - Disclosure - Commitments And Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 31803 - Disclosure - Share Repurchase Program (Tables) link:presentationLink link:calculationLink link:definitionLink 40301 - Disclosure - Operations and Segmentation (Details) link:presentationLink link:calculationLink link:definitionLink 40501 - Disclosure - Stock-based Compensation (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40503 - Disclosure - Stock-based Compensation (Schedule of Stock Options Weight Average Assumptions) (Details) link:presentationLink link:calculationLink link:definitionLink 40504 - Disclosure - Stock-based Compensation (Schedule of Stock Option Activities) (Details) link:presentationLink link:calculationLink link:definitionLink 40505 - Disclosure - Stock-based Compensation (Schedule of Stock Option Exercises) (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - Accumulated Other Comprehensive Income/(Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 41101 - Disclosure - Accounts Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 41401 - Disclosure - Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 41501 - Disclosure - Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41505 - Disclosure - Debt (Unsecured Fixed Rate Debt Securities Issued Under Current Shelf Registration) (Details) link:presentationLink link:calculationLink link:definitionLink 41601 - Disclosure - Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink 41701 - Disclosure - Commitments And Contingencies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 41702 - Disclosure - Commitments And Contingencies (Commitments And Contingencies Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 41801 - Disclosure - Share Repurchase Program (Details) link:presentationLink link:calculationLink link:definitionLink 41901 - Disclosure - Related Parties (Details) link:presentationLink link:calculationLink link:definitionLink