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Property, Plant and Equipment (Tables) | 9 Months Ended
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Sep. 30, 2018
Property, Plant and Equipment [Line Items] |
Assets Acquired and Liabilities Assumed | As of the closing date, the estimated fair value of the assets purchased and the liabilities assumed by WPL were as follows (in millions):
Property, plant and equipment, net |  | $81 |
Liabilities | 7 |
Net assets acquired |  | $74 |
WPL [Member] |
Property, Plant and Equipment [Line Items] |
Assets Acquired and Liabilities Assumed | As of the closing date, the estimated fair value of the assets purchased and the liabilities assumed by WPL were as follows (in millions):
Property, plant and equipment, net |  | $81 |
Liabilities | 7 |
Net assets acquired |  | $74 |

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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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