We plan to apply the full retrospective approach to adopt ASC Topic 606. Based upon analyses performed, we anticipate ASC Topic 606 will result in an acceleration of the timing of revenue recognition for certain transaction commissions and advisory services. These items include variable consideration or other aspects, such as contingencies, that preclude revenue recognition contemporaneous with the satisfaction of our performance obligations within the existing revenue recognition framework. We do not expect the acceleration of the timing of revenue recognition to have a material impact to our Consolidated Financial Statements.
In addition, we anticipate implementation of the updated principal versus agent considerations in ASC Topic 606 will result in a significant increase to the proportion of our Property & Facility Management and Project & Development Services contracts accounted for on a gross basis. Under the legacy principal versus agent framework, our evaluations for presentation of a service contract contemplated both performance and payment risk. Contractual provisions with clients and vendors, such as “pay-when-paid”, that substantially mitigate payment risk to us with respect to on-site personnel and other expenses incurred on our clients’ behalf have historically resulted in the majority of our service contracts being accounted for on a net basis. However, within ASC Topic 606, payment risk is not an evaluation factor; instead, control of the service before transfer to the customer is the focal point of principal versus agent assessments.
Within certain Property & Facility Management and Project & Development Services contracts, we have concluded that we control the services provided by a third party on behalf of clients. Therefore upon adoption of ASC Topic 606, for these service contracts, we will present the expenses incurred on behalf of clients along with the corresponding reimbursement revenue on a gross basis. Based upon evaluations which are ongoing, we estimate our application of the full retrospective approach will result in our full-year 2016 Consolidated Statements of Comprehensive Income reflecting approximately $5.5 billion to $6.5 billion of additional Revenue and an equal amount of Operating expenses. The estimated increase is anticipated to be most impacted by service contracts in the U.S. We expect the impact for 2017 to be generally consistent with 2016; however, we have not yet completed these assessments.
We do not anticipate a material impact to our other revenue streams beyond what is discussed above.
We expect the adoption of ASC Topic 606 to result in a material increase to total assets and total liabilities to reflect (i) contract assets and accrued commissions payable recognized upon acceleration of the timing of revenue recognition for certain transaction commissions and advisory services and (ii) nearly balanced receivables and payables relating to Property & Facility Management and Project & Development Services contracts to be reported on a gross basis. Our assessment with respect to the quantitative impact of ASC Topic 606 on our Consolidated Balance Sheets is ongoing.
Finally, we expect the adoption of ASC Topic 606 to have a notable increase to the level of detail provided by our disclosures, including further disaggregation of revenue, quantitative and qualitative information about performance obligations, as well as additional balance sheet disclosures.
In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which increases transparency and comparability by requiring the recognition of lease assets and lease liabilities on the balance sheet as well as requiring the disclosure of key information about leasing arrangements. This ASU is effective for annual and interim periods beginning after December 15, 2018, with early adoption permitted. We anticipate the adoption of this ASU will result in an increase to the Condensed Consolidated Balance Sheet to reflect right-of-use assets and lease liabilities primarily associated with our office leases around the world. However, we have not yet quantified this impact nor the impact associated with non-real estate leases. We continue to evaluate any other effect the guidance will have on our financial statements and related disclosures.