liabilities for these restructuring charges incurred but not paid totaled $77 million and are included in Other current liabilities.

The majority of the restructuring charges related to employee terminations (see Notes to Consolidated Financial Statements— Note 5B. Acquisition-Related Costs: Restructuring Charges— Pharmacia). Through December 31, 2006, employee termination costs totaling $592 million represent the approved reduction of the legacy Pfizer and legacy Pharmacia (from April 16, 2004) work force by 4,255 employees, mainly in corporate, manufacturing, distribution, sales and research. We notified affected individuals and 4,005 employees were terminated as of December 31, 2006. Employee termination costs include accrued severance benefits and costs associated with change-in-control provisions of certain Pharmacia employment contracts.

Other (Income)/Deductions—Net

In 2006, Pfizer recorded a charge of $320 million related to the impairment of our Depo-Provera intangible asset. In 2005, Pfizer recorded impairment charges of $1.1 billion related to the impairment of our Bextra intangible asset. In 2004, we recorded an impairment charge of $691 million related to the Depo-Provera brand and a litigation-related charge of $369 million related to Quigley Company, Inc., a wholly-owned subsidiary of Pfizer. See also Notes to Consolidated Financial Statements—Note 6. Other (Income)/Deductions—Net.

Provision/(Benefit) for Taxes on Income

Our overall effective tax rate for continuing operations was 15.3% in 2006, 29.4% in 2005 and 18.4% in 2004. The lower tax rate in 2006 is primarily due to tax benefits related to the resolution of a tax matter, a change in tax regulations and a decrease in the 2005 estimated U.S. tax provision related to the repatriation of foreign earnings, all as discussed below, and the impact of the sale of our Consumer Healthcare business. The higher tax rate in 2005 was attributable to the previously mentioned tax charge associated with the repatriation of foreign earnings and higher non-deductible charges for acquisition- related IPR&D, primarily relating to our acquisition of Vicuron and Idun in 2005, partially offset by the tax benefit of $586 million related to the resolution of certain tax positions.

In the first quarter of 2006, we were notified by the Internal Revenue Service (IRS) Appeals Division that a resolution had been reached on the matter that we were in the process of appealing, related to the tax deductibility of an acquisition-related breakup fee paid by the Warner-Lambert Company in 2000. As a result, we recorded a tax benefit of approximately $441 million related to the resolution of this issue.

On January 23, 2006, the IRS issued final regulations on Statutory Mergers and Consolidations, which impacted certain prior-period

transactions. In the first quarter of 2006, we recorded a tax benefit of $217 million, reflecting the total impact of these regulations.

In the third quarter of 2006, we recorded a decrease to the 2005 estimated U.S. tax provision related to the repatriation of foreign earnings, due primarily to the receipt of information that raised our assessment of the likelihood of