v3.10.0.1

FAIR VALUE OF FINANCIAL INSTRUMENTS - Non-Recurring basis (Details) $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment - Market Assets	$ 2.1
Impairment - Assets Held for Sale	26.9
Impairment - Bonneville Assets held for Sale	25.6
Impairment - Other assets held for sale	$ 1.3

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- References

No definition available.

+ Details

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- References

No definition available.

+ Details

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Period Type:	duration

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- References

No definition available.

+ Details

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X

- References

No definition available.

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Balance Type:	debit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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