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Operations and Significant Accounting Policies | 6 Months Ended
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Jun. 30, 2011
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Operations and Significant Accounting Policies | NOTE 1. OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES Inventories. Inventories are stated at the lower of cost or market. Amounts removed from inventory are recorded on an average cost basis.
| June 30, | December 31,
Inventories | 2011 | 2010
Millions |  |
Fuel | $23.5 | $22.9
Materials and Supplies | 37.8 | 37.1
Total Inventories | $61.3 | $60.0
| June 30, | December 31,
Prepayments and Other Current Assets | 2011 | 2010
Millions |  |
Deferred Fuel Adjustment Clause | $15.0 | $20.6
Other | 5.6 | 8.0
Total Prepayments and Other Current Assets | $20.6 | $28.6
| June 30, | December 31,
Other Non-Current Liabilities | 2011 | 2010
Millions |  |
Asset Retirement Obligation | $52.0 | $50.3
Other | 48.9 | 43.1
Total Other Non-Current Liabilities | $100.9 | $93.4
Supplemental Statement of Cash Flows Information.
For the Six Months Ended June 30, | 2011 | 2010
Millions |  |
Cash Paid During the Period for Interest - Net of Amounts Capitalized | $21.9 | $16.3
Cash Paid During the Period for Income Taxes | $0.4 | $1.5
Noncash Investing and Financing Activities |  |
Increase (Decrease) in Accounts Payable for Capital Additions to Property, Plant and Equipment | $(13.2) | $4.4
AFUDC - Equity | $1.1 | $2.1
Subsequent Events. The Company performed an evaluation of subsequent events for potential recognition and disclosure through the time of the financial statements issuance. New Accounting Standards. Fair Value. In May 2011, the FASB issued an accounting standards update on fair value measurement. This update requires disclosure of a sensitivity analysis for fair value measurements within Level 3 and the valuation processes used. This guidance is effective for the quarter ended March 31, 2012, and is not expected to have a material impact on our consolidated financial position, results of operations or cash flows. Statement of Comprehensive Income. In June 2011, the FASB issued an accounting standards update on the presentation of comprehensive income. This guidance will be effective for the quarter ended March 31, 2012 and will modify our presentation of other comprehensive income, moving it from the footnotes to the face of the financial statements in a single, continuous statement of comprehensive income. The components of net income and other comprehensive income are unchanged and EPS continues to be based on net income.

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- Definition The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 22 -Paragraph 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Name Statement of Position (SOP) -Publisher AICPA -Number 94-6 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Name FASB Interpretation (FIN) -Publisher FASB -Number 46R -Paragraph 4, 14, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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