This excerpt taken from the ALL DEF 14A filed Apr 2, 2007.
Pension Benefit Enhancement
Messrs. Liddy and Sylla have supplemental nonqualified retirement benefit agreements which provide for additional years of vesting and credited service. Because Mr. Liddy joined Sears, Roebuck and Co., our former parent company, midway through his career and because Mr. Sylla joined Allstate midway through his career, each was provided with pension enhancements to compensate for retirement benefits that he was foregoing in changing employers.
The following table summarizes the named executives' pension benefits.