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Investments, Equity Method and Joint Ventures (Policies) | 3 Months Ended
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Mar. 31, 2020
Equity Method Investments and Joint Ventures [Abstract] |
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy | The Company evaluates its equity method investment for impairment when factors indicate that a decline in the value of its investment has occurred and the carrying amount of its investment may not be recoverable. An impairment loss, based on the excess of the carrying value over estimated fair value of the investment, is recognized in earnings when an impairment is deemed to be other than temporary. Considerable judgment is used in determining if an impairment loss is other than temporary and the amount of any impairment. At March 31, 2020, the Company estimated the fair value of its investment in Enable was below the book value and concluded the decline in value was not temporary due to the severity of the decline and the recent rapid deterioration, as well as the near term future outlook, of the midstream oil and gas industry. Accordingly, the Company recorded a $780.0 million impairment on its investment in Enable for the three months ended March 31, 2020, which is included in Equity in Earnings of Unconsolidated Affiliates in the Company's 2020 Condensed Consolidated Income Statement. The impairment resulted in an additional layer of basis difference for the Company's investment in Enable that will be amortized over the average life of the assets to which the basis difference is attributed, which is 29 years. Further information concerning the fair value method used to measure the impairment on the Company's investment in Enable can be found in Note 5.

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- Definition Disclosure of accounting policy for the impairment and disposal of long-lived assets including goodwill and other intangible assets. + References No definition available. + Details
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