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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equity Investment

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Ratio of shares exchanged as a result of the business acquisition

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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The expenses and losses recorded for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisition (Details) (USD $) In Millions, except Share data, unless otherwise specified						3 Months Ended
	Mar. 31, 2014	Mar. 07, 2014	Dec. 31, 2013	Mar. 31, 2013	Mar. 31, 2014 Enlink Midstream, Inc.	Mar. 31, 2014 Enlink midstream, LLC [Member]	Mar. 31, 2014 Gulf Coast Fractionators	Mar. 07, 2014 Gulf Coast Fractionators
Business Acquisition [Line Items]
Exchange Ratio		1
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual						$ 199.4
Equity Method Investment, Ownership Percentage							38.75%	38.75%
Assets acquired [Abstract]
Current assets					437.6
Property, plant and equipment					2,412.3
Intangibles					426.6
Equity Investment					221.7
Goodwill	3,821.6		401.7	401.7	3,419.7
Other long term assets					1.1
Liabilities assumed:
Current liabilities					(514.1)
Long term debt					(1,453.6)
Deferred taxes					(198.7)
Other long term liabilities					(101.2)
Total purchase price						4,651.4
Business Acquisition, Percentage of Voting Interests Acquired		50.00%
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized						$ 196.9