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Supplemental Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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| Supplemental Cash Flow Information (Textuals) | ||||
| Interest paid, net of amounts capitalized | $ 146.6 | $ 137.9 | ||
| Net refunds from income taxes | 38.3 | 107.0 | ||
| Accounts payable related to capital expenditures | 3.4 | 25.3 | 3.4 | 25.3 |
| Amortization of deferred revenue | 42.7 | 41.2 | ||
| Income (Loss) from Equity Method Investments | 17.1 | 17.1 | 51.0 | 48.8 |
| Distributions from transmission affiliate | 40.5 | 39.0 | ||
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Transmission Affiliate [Member]
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| Supplemental Cash Flow Information (Textuals) | ||||
| Income (Loss) from Equity Method Investments | $ 17.1 | $ 17.1 | $ 51.0 | $ 48.9 |
| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of cash received during the period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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