LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES (Policies)

9 Months Ended

Sep. 30, 2011

Commitments and Contingencies Disclosure [Abstract]

Environmental Costs, Policy

We change our accrual to reflect:

• new information on any site concerning implementation of remediation alternatives,

• updates on prior cost estimates and new sites and

• costs incurred to remediate sites.

We believe it is reasonably possible – based on currently available information and analysis – that remediation costs for all identified sites may exceed our accrual by up to $100 million.

That estimate – in which those additional costs may be incurred over several years – is the upper end of the range of reasonably possible additional costs. The estimate:

• is much less certain than the estimates on which our accruals currently are based and

• uses assumptions that are less favorable to us among the range of reasonably possible outcomes.

In estimating our current accruals and the possible range of additional future costs, we:

• assumed we will not bear the entire cost of remediation of every site,

• took into account the ability of other potentially responsible parties to participate and

• considered each party’s financial condition and probable contribution on a per-site basis.