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Investment in Unconsolidated Affiliates Summarized Balance Sheet Information of Equity Method Investment (Tables) | 6 Months Ended
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Jun. 30, 2014
Summarized Financial Information of Equity Method Investment [Line Items] |
Summarized Balance Sheet Financial Information, Equity Method Investment [Table Text Block] | Summarized unaudited financial information for 100 percent of Enable is presented below at June 30, 2014 and for the three and six months ended June 30, 2014 and June 30, 2013.
Balance Sheet | June 30, 2014
| (In millions)
Current assets | $ | 923.0 |
Non-current assets | 10,814.5 |
Current liabilities | 583.4 |
Non-current liabilities | 2,343.1 |

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