Organization, Consolidation, And Presentation Of Financial Statements

12 Months Ended

Dec. 31, 2011

Organization, Consolidation, And Presentation Of Financial Statements [Abstract]

Organization, Consolidation, And Presentation Of Financial Statements

Note 2.    Organization, Consolidation, and Presentation of Financial Statements

Principles of Consolidation

The accompanying Consolidated Financial Statements include our accounts and the accounts of our subsidiaries after elimination of all significant intercompany account balances and transactions.

Basis of Presentation

Our Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP).

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, and expenses and the related disclosures of contingent assets and liabilities. We evaluate estimates on an ongoing basis, including those related to recognition of revenue, valuation of investments, adequacy of the allowance for doubtful accounts, valuation of inventory, valuation of deferred tax assets and liabilities, valuation of goodwill and other intangible assets, adequacy of warranty obligations, measurement of restructuring and impairment charges, valuation of long-term debt, valuation and measurement of derivatives, contingencies and litigation, and measurement of stock-based compensation. We base our estimates on historical experience and on market-based assumptions that we believe to be reasonable under current circumstances. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Our intent is to accurately state assets and liabilities given facts known at the time of measurement. Actual results may differ from these estimates.