Compared to Fiscal 2011:     On a constant currency basis, the decrease in acquisition related and other expenses during fiscal 2012 was primarily due to lower transitional employee related costs and professional services expenses in comparison to those that were incurred in fiscal 2011 (primarily related to our acquisition of Sun), and was also due to a benefit from a business combination related legal settlement, which reduced our fiscal 2012 expenses. These expense reductions were partially offset by an increase in stock-based compensation expenses associated with our recent acquisitions and expenses associated with the change in fair value of contingent consideration payable during fiscal 2012.

Restructuring expenses:     Restructuring expenses result from the execution of management approved restructuring plans that were generally developed to improve our cost structure and/or operations, often in conjunction with our acquisition integration strategies. Restructuring expenses consist of employee severance costs and may also include charges for duplicate facilities and other contract termination costs to improve our cost structure prospectively. For additional information regarding our restructuring plans, see Note 9 of Notes to Consolidated Financial Statements included elsewhere in this Annual Report.

 

Fiscal 2013 Compared to Fiscal 2012:     Restructuring expenses in fiscal 2013 primarily related to our 2013 Restructuring Plan, which our management approved, committed to and initiated in order to restructure and further improve efficiencies in our operations. We amended the 2013 Restructuring Plan in the third quarter of fiscal 2013 to reflect additional actions that we expect to take to improve efficiencies in our operations. The total estimated restructuring costs associated with the 2013 Restructuring Plan are $420 million and will be recorded to the restructuring expense line item within our consolidated statements of operations as they are incurred. The total estimated remaining restructuring costs associated with the 2013 Restructuring Plan were approximately $95 million as of May 31, 2013. The majority of the remaining costs are expected to be incurred through fiscal 2014. Our estimated costs may be subject to change in future periods.

Fiscal 2012 Compared to Fiscal 2011:     Restructuring expenses in fiscal 2012 primarily related to our Sun Restructuring Plan, which our management approved, committed to and initiated in order to better align our cost structure as a result of our acquisition of Sun. The decrease in restructuring expenses in fiscal 2012 in comparison to those that were incurred in fiscal 2011 primarily related to the decrease in expenses incurred in connection with our Sun Restructuring Plan.

Interest Expense:

 

Fiscal 2013 Compared to Fiscal 2012:     Interest expense increased in fiscal 2013 due to higher average borrowings resulting from our issuance of $5.0 billion of senior notes in October 2012, partially offset by the maturity and repayment of $1.25 billion of senior notes in April 2013 (see Note 8 of Notes to Consolidated Financial Statements included elsewhere in this Annual Report for