NOTES TO CONSOLIDATED FINANCIAL STATEMENTS December 31, 2011, 2010 and 2009 (currencies in millions) The following additional data relates to all pension plans of the Company, except for certain multi-employer and  defined contribution plans:  The components of the change in projected benefit obligation and change in plan assets are as follows: Of the December 31, 2011 amounts in accumulated other comprehensive loss, $42.6 of unrecognized actuarial loss  and $1.5 of unrecognized prior service cost are expected to be amortized into net pension expense in 2012. The accumulated benefit obligation for all pension plans of the Company, except for certain multi-employer and  defined contribution plans was $1,594.9 at December 31, 2011 and $1,350.3 at December 31, 2010.  2011 2010 Change in projected benefit obligation: Benefit obligation at January 1  $1,485.6 $1,324.8 Service cost  45.5 37.5 Interest cost  81.6 76.5 Benefits paid  (59.5) (56.2) Actuarial loss  259.1 99.7 Currency translation and other  (7.5) .4 Participant contributions  3.3 2.9 Projected benefit obligation at December 31  $1,808.1 $1,485.6 Change in plan assets:  Fair value of plan assets at January 1  $1,445.4 $1,276.3 Employer contributions  84.7 61.8 Actual return on plan assets  79.0 162.6 Benefits paid (59.5) (56.2) Currency translation and other  (3.0) (2.0) Participant contributions  3.3 2.9 Fair value of plan assets at December 31 1,549.9 1,445.4 Funded status at December 31  $ (258.2) $ (40.2) Amounts recorded on balance sheet: 2011 2010 Other noncurrent assets  $  .4 $  47.1 Other liabilities  (258.6) (87.3) Accumulated other comprehensive loss: Actuarial loss  469.3 302.8 Prior service cost  8.3 9.0 Net initial transition amount  .5 .6 At December 31, 2011 2010 Weighted average assumptions: Discount rate  4.5% 5.4% Rate of increase in future compensation levels  3.9% 3.9% Assumed long-term rate of return on plan assets  6.9% 7.2%