Basis Of Presentation and Significant Accounting Policies	6 Months Ended
Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Basis of Presentation: The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by GAAP for annual financial statements. We have omitted certain footnote disclosures that would substantially duplicate the disclosures in our 2014 Annual Report on Form 10-K, unless the information contained in those disclosures materially changed or is required by GAAP. Unless otherwise specified, all financial information presented in the accompanying consolidated financial statements and in the notes to consolidated financial statements relates only to our continuing operations, other than cash flows presented on the consolidated statements of cash flows. In the opinion of management, all adjustments, including normal recurring adjustments, necessary for a fair statement of the consolidated financial statements as of and for the three and six months ended June 30, 2015 and 2014 have been recorded. The results of operations for the three and six months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2015. These unaudited consolidated financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2014 included in our 2014 Annual Report on Form 10-K. Certain of our subsidiaries operate outside of the United States and have functional currencies other than the U.S. dollar, or USD. We translate the assets and liabilities of those subsidiaries to USD using the exchange rate in effect at the end of the period. We translate the revenues and expenses of those subsidiaries to USD using the average exchange rates in effect during the period. The net effect of these translation adjustments is included in “Foreign currency translation adjustments” in our consolidated statements of comprehensive income. Recently Adopted Accounting Guidance: In June 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update No. 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, or ASU 2014-11. This amendment requires repurchase-to-maturity transactions to be accounted for as secured borrowings and eliminates previous guidance for repurchase financings. The amendment also expands the disclosure requirements related to certain transactions accounted for as secured borrowings and certain transfers accounted for as sales when the transferor also retains substantially all of the exposure to the economic return on the transferred financial assets throughout the term of the transaction. The amendments related to the accounting of, and disclosure requirements for, certain transactions accounted for as a sale became effective as of January 1, 2015 and did not have an impact on our consolidated financial position, results of operations, cash flows or disclosures. The new disclosure requirements for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions accounted for as secured borrowings became effective as of April 1, 2015. See Note 5, "Investments - Securities Lending Programs," for additional disclosure information related to the adoption of ASU 2014-11. In April 2015, the FASB issued Accounting Standards Update No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, or ASU 2015-03. ASU 2015-03 amends current presentation guidance by requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. Prior to the issuance of ASU 2015-03, debt issuance costs were required to be presented as an asset in the balance sheet. We adopted the provisions of ASU 2015-03 upon issuance and prior period amounts have been reclassified to conform to the current period presentation. As of December 31, 2014, $0.7 of debt issuance costs were reclassified in the consolidated balance sheet from other current assets to current portion of long-term debt and $107.6 was reclassified from other noncurrent assets to long-term debt, less current portion. The adoption of ASU 2015-03 did not impact our consolidated financial position, results of operations or cash flows. Recent Accounting Guidance Not Yet Adopted: In May 2015, the FASB issued Accounting Standards Update No. 2015-09, Financial Services—Insurance (Topic 944): Disclosures about Short-Duration Contracts, or ASU 2015-09. This amendment requires new and expanded disclosures in interim and annual reporting periods related to the liability for unpaid claims and claim adjustment expenses for short-duration insurance contracts. ASU 2015-09 is effective for annual reporting periods beginning after December 15, 2015, and interim reporting periods within annual reporting periods beginning after December 15, 2016. The adoption of ASU 2015-03 will not impact our consolidated financial position, results of operations or cash flows. In April 2015, the FASB issued Accounting Standards Update No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, or ASU 2015-05. This amendment provides guidance to help entities determine whether a cloud computing arrangement contains a software license that should be accounted for as internal-use software or as a service contract. ASU 2015-05 is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. Upon adoption, an entity has the option to apply the provisions of ASU 2015-05 either prospectively to all arrangements entered into or materially modified, or retrospectively. We are currently evaluating the effects the adoption of ASU 2015-05 will have upon our consolidated financial position, results of operations or cash flows. In February 2015, the FASB issued Accounting Standards Update No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis, or ASU 2015-02. ASU 2015-02 amends current consolidation guidance by modifying the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, eliminating the presumption that a general partner should consolidate a limited partnership, and affects the consolidation analysis of reporting entities that are involved with variable interest entities. ASU No. 2015-02 is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. All legal entities are subject to reevaluation under the revised consolidation model. The adoption of ASU 2015-02 is not expected to have a material impact on our consolidated financial position, results of operations or cash flows. There were no other new accounting pronouncements that were issued or became effective since the issuance of our 2014 Annual Report on Form 10-K that had, or are expected to have, a material impact on our consolidated financial position, results of operations or cash flows.

Basis of Presentation and Significant Accounting Policies

Basis of Presentation: The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, for interim financial reporting. Accordingly, they do not include all of the information and footnotes required by GAAP for annual financial statements. We have omitted certain footnote disclosures that would substantially duplicate the disclosures in our 2014 Annual Report on Form 10-K, unless the information contained in those disclosures materially changed or is required by GAAP. Unless otherwise specified, all financial information presented in the accompanying consolidated financial statements and in the notes to consolidated financial statements relates only to our continuing operations, other than cash flows presented on the consolidated statements of cash flows. In the opinion of management, all adjustments, including normal recurring adjustments, necessary for a fair statement of the consolidated financial statements as of and for the three and six months ended June 30, 2015 and 2014 have been recorded. The results of operations for the three and six months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2015. These unaudited consolidated financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2014 included in our 2014 Annual Report on Form 10-K.

Certain of our subsidiaries operate outside of the United States and have functional currencies other than the U.S. dollar, or USD. We translate the assets and liabilities of those subsidiaries to USD using the exchange rate in effect at the end of the period. We translate the revenues and expenses of those subsidiaries to USD using the average exchange rates in effect during the period. The net effect of these translation adjustments is included in “Foreign currency translation adjustments” in our consolidated statements of comprehensive income.

Recently Adopted Accounting Guidance: In June 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update No. 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, or ASU 2014-11. This amendment requires repurchase-to-maturity transactions to be accounted for as secured borrowings and eliminates previous guidance for repurchase financings. The amendment also expands the disclosure requirements related to certain transactions accounted for as secured borrowings and certain transfers accounted for as sales when the transferor also retains substantially all of the exposure to the economic return on the transferred financial assets throughout the term of the transaction. The amendments related to the accounting of, and disclosure requirements for, certain transactions accounted for as a sale became effective as of January 1, 2015 and did not have an impact on our consolidated financial position, results of operations, cash flows or disclosures. The new disclosure requirements for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions accounted for as secured borrowings became effective as of April 1, 2015. See Note 5, "Investments - Securities Lending Programs," for additional disclosure information related to the adoption of ASU 2014-11.

In April 2015, the FASB issued Accounting Standards Update No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, or ASU 2015-03. ASU 2015-03 amends current presentation guidance by requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. Prior to the issuance of ASU 2015-03, debt issuance costs were required to be presented as an asset in the balance sheet. We adopted the provisions of ASU 2015-03 upon issuance and prior period amounts have been reclassified to conform to the current period presentation. As of December 31, 2014, $0.7 of debt issuance costs were reclassified in the consolidated balance sheet from other current assets to current portion of long-term debt and $107.6 was reclassified from other noncurrent assets to long-term debt, less current portion. The adoption of ASU 2015-03 did not impact our consolidated financial position, results of operations or cash flows.

Recent Accounting Guidance Not Yet Adopted: In May 2015, the FASB issued Accounting Standards Update No. 2015-09, Financial Services—Insurance (Topic 944): Disclosures about Short-Duration Contracts, or ASU 2015-09. This amendment requires new and expanded disclosures in interim and annual reporting periods related to the liability for unpaid claims and claim adjustment expenses for short-duration insurance contracts. ASU 2015-09 is effective for annual reporting periods beginning after December 15, 2015, and interim reporting periods within annual reporting periods beginning after December 15, 2016. The adoption of ASU 2015-03 will not impact our consolidated financial position, results of operations or cash flows.

In April 2015, the FASB issued Accounting Standards Update No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, or ASU 2015-05. This amendment provides guidance to help entities determine whether a cloud computing arrangement contains a software license that should be accounted for as internal-use software or as a service contract. ASU 2015-05 is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. Upon adoption, an entity has the option to apply the provisions of ASU 2015-05 either prospectively to all arrangements entered into or materially modified, or retrospectively. We are currently evaluating the effects the adoption of ASU 2015-05 will have upon our consolidated financial position, results of operations or cash flows.

In February 2015, the FASB issued Accounting Standards Update No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis, or ASU 2015-02. ASU 2015-02 amends current consolidation guidance by modifying the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, eliminating the presumption that a general partner should consolidate a limited partnership, and affects the consolidation analysis of reporting entities that are involved with variable interest entities. ASU No. 2015-02 is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. All legal entities are subject to reevaluation under the revised consolidation model. The adoption of ASU 2015-02 is not expected to have a material impact on our consolidated financial position, results of operations or cash flows.

There were no other new accounting pronouncements that were issued or became effective since the issuance of our 2014 Annual Report on Form 10-K that had, or are expected to have, a material impact on our consolidated financial position, results of operations or cash flows.