XML 37 R78.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Common Equity (Schedule of Capital Contributions) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
IPL [Member] |  |  |
Capital contributions from parent | $ 120.0 | $ 110.0 | $ 54.0
WPL [Member] |  |  |
Capital contributions from parent | 0 | 90.0 | 25.0
Corporate Services [Member] |  |  |
Capital contributions from parent | 0 | 30.0 | 0
Resources [Member] |  |  |
Capital contributions from parent | $ 0 | $ 0 | $ 65.0

X
- Definition The cash inflow from parent as a source of financing that is recorded as additional paid in capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_ProceedsFromContributionsFromParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration