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DISPOSITIONS (Details) $ in Millions	3 Months Ended
	Jun. 30, 2016 USD ($)
Wisconsin | WE
Dispositions
After-tax gain on sale	$ 6.5
Wisconsin | WE | Other operation and maintenance
Dispositions
Pre-tax gain on sale	10.9
Corporate and Other | Wisvest
Dispositions
After-tax gain on sale	11.8
Corporate and Other | Wisvest | Other income, net
Dispositions
Pre-tax gain on sale	19.6
Corporate and Other | ITF
Dispositions
Pre-tax gain on sale	$ 0.0

X

- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230

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- Definition

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+ References

No definition available.

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- Definition

The after-tax gain (loss) resulting from the sale of a disposal group that is not a discontinued operation.

+ References

No definition available.

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