Represents the capacity in megawatts of the wind project acquired.

No definition available.

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- Definition

The pro forma earnings before interest and income taxes for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

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-Publisher FASB
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-Section 50
-Paragraph 1
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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
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-Paragraph 1
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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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ACQUISITIONS AND DISPOSITIONS - Other Acquisitions (Narrative) (Details) $ in Millions							1 Months Ended		12 Months Ended
	Nov. 02, 2016 USD ($)	Nov. 02, 2016 CAD ($)	Sep. 09, 2016 USD ($) MW	Sep. 09, 2016 CAD ($) MW	Feb. 27, 2015 USD ($)	Feb. 27, 2015 CAD ($)	Nov. 30, 2015 USD ($) MW	Nov. 30, 2015 CAD ($) MW	Dec. 31, 2018 CAD ($)	Dec. 31, 2017 CAD ($)	Dec. 31, 2016 CAD ($)	Nov. 02, 2016 CAD ($)	Sep. 09, 2016 CAD ($)	Nov. 30, 2015 CAD ($)	Feb. 27, 2015 CAD ($)
Business Acquisition [Line Items]
Cash consideration \| $									$ 0	$ 0	$ 644,000,000
Chapman Ranch
Business Acquisition [Line Items]
Ownership interest acquired (as a percent)			100.00%										100.00%
Capacity acquired (in megawatts) \| MW			249	249
Cash consideration	$ 30	$ 40,000,000	$ 50	$ 65,000,000
Purchase price allocated to property, plant and equipment	$ 17		$ 48									$ 23,000,000	$ 62,000,000
Pro forma effect on earnings \| $		$ 0
New Creek
Business Acquisition [Line Items]
Ownership interest acquired (as a percent)							100.00%							100.00%
Capacity acquired (in megawatts) \| MW							103	103
Cash consideration							$ 36	$ 48,000,000
Purchase price allocated to property, plant and equipment							$ 26							$ 35,000,000
Midstream Business
Business Acquisition [Line Items]
Cash consideration					$ 85	$ 106,000,000
Purchase price allocated to property, plant and equipment					55										$ 69,000,000
Contingent future payment (up to)					$ 17										$ 21,000,000