Percentage-of-Completion Contracts

9 Months Ended

Jun. 30, 2011

Percentage-of-Completion Contracts [Abstract]

Percentage-of-Completion Contracts

The building efficiency business records certain long-term contracts under the percentage-of-completion method of accounting. Under this method, sales and gross profit are recognized as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. The Company records costs and earnings in excess of billings on uncompleted contracts within accounts receivable — net and billings in excess of costs and earnings on uncompleted contracts within other current liabilities in the condensed consolidated statements of financial position. Amounts included within accounts receivable — net related to these contracts were $798 million, $683 million and $614 million at June 30, 2011, September 30, 2010 and June 30, 2010, respectively. Amounts included within other current liabilities were $769 million, $639 million and $610 million at June 30, 2011, September 30, 2010 and June 30, 2010, respectively.