Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Sale of Interest by Parent

No definition available.

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- Definition

Intangible Assets, Proceeds from Reimbursement of Intangible Asset

+ References

No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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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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- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64801991&loc=SL6759159-111685

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Intangible Asset - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Apr. 01, 2016	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2016	Sep. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Purchase of intangible				$ 80	$ 0
Sabal Trail Transmission, LLC
Finite-Lived Intangible Assets [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage				37.90%
Sabal Trail Transmission, LLC \| Spectra Energy Partners, LP
Finite-Lived Intangible Assets [Line Items]
Purchase of intangible		$ 40	$ 48
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage				50.00%
NextEra \| Sabal Trail Transmission, LLC \| Spectra Energy Partners, LP
Finite-Lived Intangible Assets [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Sale of Interest by Parent	9.50%
Intangible Assets, Reimbursement	$ 8
Investments and other assets—other \| Sabal Trail Transmission, LLC \| Spectra Energy Partners, LP
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross		$ 80		$ 80
Finite-Lived Intangible Asset, Useful Life				25 years