This excerpt taken from the PBR 6-K filed Apr 10, 2007.
(k) Employees post-retirement benefits
The Company sponsors a contributory defined-benefit pension plan covering substantially all of its employees, which is accounted for by the Company in accordance with SFAS No. 87 - Employers Accounting for Pensions ("SFAS 87") and SFAS 158 - Employers Accounting for Defined Benefit Pension and Other Postretirement Plans an Amendment of FASB Statements No. 87, 88, 106 and 132(R) (SFAS 158). Disclosures related to the plan are according to FASB Statement No. 132-R, Employers Disclosures about Pensions and Other Post-retirement Benefits (SFAS No. 132-R) (see Note 2 (r)).
In addition, the Company provides certain health care benefits for retired employees and their dependents. The cost of such benefits is recognized in accordance with SFAS No. 106 - Post-retirement Benefits Other Than Pensions ("SFAS 106") and SFAS 158.
The Company also contributes to the Brazilian pension and government sponsored pensions of international subsidiaries, social security and redundancy plans at rates based on payroll, and such contributions are expensed as incurred. Further indemnities may be payable upon involuntary severance of employees but, based on current operating plans, management does not believe that any amounts payable under this plan will be significant.