Recently Issued Accounting Standards	6 Months Ended
Jun. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards In May 2014, the FASB issued new accounting guidance on revenue from contracts with customers. The core principle of this amendment is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. As amended, the new guidance is effective for us in 2018 and can be adopted either retrospectively to each prior reporting period presented or as a cumulative-effect adjustment as of the date of adoption ("modified retrospective approach"). We are currently working through an adoption plan and completed a preliminary analysis of how we currently recognize revenue compared to the accounting treatment required under the new guidance. We will complete our adoption plan in the second half of 2017. This plan includes a review of client contracts and revenue transactions to determine the impact of the accounting treatment under the new guidance, evaluation of the adoption method, and completing a rollout plan for the new guidance. Additionally, we are in the process of assessing the impact of the new standard on our disclosures and internal controls. Based on our preliminary analysis, we currently do not believe the adoption of this guidance will have a material impact on our Consolidated Financial Statements. We will continue to evaluate the impact of this guidance on our Consolidated Financial Statements, disclosures, and internal controls. Our preliminary assessments are subject to change. We plan to adopt the new guidance beginning January 1, 2018 and presently expect to use the modified retrospective approach. In January 2016, the FASB issued new accounting guidance on financial instruments. The new guidance requires equity investments (except those accounted for under the equity method of accounting or to those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. This new guidance impacts the accounting for our Swiss franchise's investment portfolio. Upon adoption in January 2018, we will recognize the cumulative unrealized gains or losses in our retained earnings, and subsequently, we will recognize all the fair value adjustments on the investment portfolio in the current period earnings, as opposed to other comprehensive loss. As of June 30, 2017 and December 31, 2016, we had an unrecognized gain on investments, net of income taxes, of $21.6 and $18.6, respectively, recorded in accumulated other comprehensive loss. In February 2016, the FASB issued new accounting guidance on leases. The new guidance requires that a lessee recognize assets and liabilities on the balance sheet for leases with lease terms longer than 12 months. The recognition, measurement and presentation of lease expenses and cash flows by a lessee will depend on its classification as a finance or operating lease. The guidance also includes new disclosure requirements providing information on the amounts recorded in the financial statements. The new guidance is effective for us in 2019. We are currently assessing the impact of the adoption of this guidance on our Consolidated Financial Statements. In June 2016, the FASB issued new accounting guidance on financial instruments. The new guidance requires an application of an impairment model known as the current expected credit loss ("CECL") model to certain financial instruments. Using the CECL model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions, and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. The new guidance is effective for us in 2020. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements. In August 2016, the FASB issued new accounting guidance on the cash flow statement. The new guidance is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The new guidance is effective for us in 2018. We do not expect the adoption of this guidance to have an impact on our Consolidated Financial Statements. In October 2016, the FASB issued new accounting guidance on tax accounting for intra-entity asset transfers. Under current GAAP, the tax effects of intra-entity asset transfers are deferred until the transferred asset is sold to a third party or otherwise recovered through use, which is an exception to the principle that generally requires comprehensive recognition of current and deferred income taxes. The new guidance eliminates the exception for all intra-entity sales of assets other than inventory. As a result, an entity would recognize the tax expense from the sale of the asset in the seller’s tax jurisdiction when the transfer occurs, and any deferred tax asset that arises in the buyer’s jurisdiction would also be recognized even though the pre-tax effects of that transaction are eliminated in consolidation. The guidance is effective for us in 2018. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements. In January 2017, the FASB issued new guidance that simplifies the accounting for goodwill impairment. The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. We adopted this guidance effective April 1, 2017, and it will be applied to our annual impairment test in the third quarter. Adoption of this guidance had no impact on our second quarter or year-to-date Consolidated Financial Statements. In March 2017, the FASB issued new guidance on the presentation of net periodic pension and postretirement benefit cost ("net benefit cost"). Under current GAAP, net benefit cost is reported as an employee cost within operating income. The amendment requires bifurcation of net benefit cost. The service cost component will be presented with other employee compensation cost in operating income, or capitalized in assets in rare circumstances. The other components will be reported separately outside of operations, and will not be eligible for capitalization. The guidance is effective for us in 2018, and should be applied retrospectively. We are currently assessing the impact of the adoption of this guidance on our Consolidated Financial Statements. For the six months ended June 30, 2017, the service cost component was $4.8 and the net other components was $1.6. For the year ended December 31, 2016, the service cost component was $8.0 and the net other components was a credit of $4.6. In May 2017, the FASB issued new guidance on share-based payment awards. The new guidance clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective for us in 2018. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements.

Recently Issued Accounting Standards

In May 2014, the FASB issued new accounting guidance on revenue from contracts with customers. The core principle of this amendment is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. As amended, the new guidance is effective for us in 2018 and can be adopted either retrospectively to each prior reporting period presented or as a cumulative-effect adjustment as of the date of adoption ("modified retrospective approach"). We are currently working through an adoption plan and completed a preliminary analysis of how we currently recognize revenue compared to the accounting treatment required under the new guidance. We will complete our adoption plan in the second half of 2017. This plan includes a review of client contracts and revenue transactions to determine the impact of the accounting treatment under the new guidance, evaluation of the adoption method, and completing a rollout plan for the new guidance. Additionally, we are in the process of assessing the impact of the new standard on our disclosures and internal controls. Based on our preliminary analysis, we currently do not believe the adoption of this guidance will have a material impact on our Consolidated Financial Statements. We will continue to evaluate the impact of this guidance on our Consolidated Financial Statements, disclosures, and internal controls. Our preliminary assessments are subject to change. We plan to adopt the new guidance beginning January 1, 2018 and presently expect to use the modified retrospective approach.

In January 2016, the FASB issued new accounting guidance on financial instruments. The new guidance requires equity investments (except those accounted for under the equity method of accounting or to those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. This new guidance impacts the accounting for our Swiss franchise's investment portfolio. Upon adoption in January 2018, we will recognize the cumulative unrealized gains or losses in our retained earnings, and subsequently, we will recognize all the fair value adjustments on the investment portfolio in the current period earnings, as opposed to other comprehensive loss. As of June 30, 2017 and December 31, 2016, we had an unrecognized gain on investments, net of income taxes, of $21.6 and $18.6, respectively, recorded in accumulated other comprehensive loss.

In February 2016, the FASB issued new accounting guidance on leases. The new guidance requires that a lessee recognize assets and liabilities on the balance sheet for leases with lease terms longer than 12 months. The recognition, measurement and presentation of lease expenses and cash flows by a lessee will depend on its classification as a finance or operating lease. The guidance also includes new disclosure requirements providing information on the amounts recorded in the financial statements. The new guidance is effective for us in 2019. We are currently assessing the impact of the adoption of this guidance on our Consolidated Financial Statements.

In June 2016, the FASB issued new accounting guidance on financial instruments. The new guidance requires an application of an impairment model known as the current expected credit loss ("CECL") model to certain financial instruments. Using the CECL model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions, and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. The new guidance is effective for us in 2020. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements.

In August 2016, the FASB issued new accounting guidance on the cash flow statement. The new guidance is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The new guidance is effective for us in 2018. We do not expect the adoption of this guidance to have an impact on our Consolidated Financial Statements.

In October 2016, the FASB issued new accounting guidance on tax accounting for intra-entity asset transfers. Under current GAAP, the tax effects of intra-entity asset transfers are deferred until the transferred asset is sold to a third party or otherwise recovered through use, which is an exception to the principle that generally requires comprehensive recognition of current and deferred income taxes. The new guidance eliminates the exception for all intra-entity sales of assets other than inventory. As a result, an entity would recognize the tax expense from the sale of the asset in the seller’s tax jurisdiction when the transfer occurs, and any deferred tax asset that arises in the buyer’s jurisdiction would also be recognized even though the pre-tax effects of that transaction are eliminated in consolidation. The guidance is effective for us in 2018. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements.

In January 2017, the FASB issued new guidance that simplifies the accounting for goodwill impairment. The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. We adopted this guidance effective April 1, 2017, and it will be applied to our annual impairment test in the third quarter. Adoption of this guidance had no impact on our second quarter or year-to-date Consolidated Financial Statements.

In March 2017, the FASB issued new guidance on the presentation of net periodic pension and postretirement benefit cost ("net benefit cost"). Under current GAAP, net benefit cost is reported as an employee cost within operating income. The amendment requires bifurcation of net benefit cost. The service cost component will be presented with other employee compensation cost in operating income, or capitalized in assets in rare circumstances. The other components will be reported separately outside of operations, and will not be eligible for capitalization. The guidance is effective for us in 2018, and should be applied retrospectively. We are currently assessing the impact of the adoption of this guidance on our Consolidated Financial Statements. For the six months ended June 30, 2017, the service cost component was $4.8 and the net other components was $1.6. For the year ended December 31, 2016, the service cost component was $8.0 and the net other components was a credit of $4.6.

In May 2017, the FASB issued new guidance on share-based payment awards. The new guidance clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective for us in 2018. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements.