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Number Of Financial Investors

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Number Of Wind Farms

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

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Portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent entity which is not redeemable by the parent entity.

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No definition available.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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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.

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

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Consolidated Entities and Equity Method Investments - SPC Noncontrolling Interests and VIEs Narrative (Details)			1 Months Ended	12 Months Ended
	Dec. 11, 2018 wind_farm investor	May 22, 2018	Sep. 30, 2018 operating_facility	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Oct. 31, 2017	Apr. 30, 2017 USD ($)
Global Atlantic
Redeemable Noncontrolling Interest [Line Items]
Distribution made to limited partner, cash distributions paid, percentage				33.00%
Southern Power
Redeemable Noncontrolling Interest [Line Items]
Distribution made to limited partner, cash distributions paid, percentage				67.00%
Number of wind facilities \| operating_facility			8
Reclassification from redeemable noncontrolling interest				$ 0	$ 0
SunPower Corp \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Reclassification from redeemable noncontrolling interest							$ (114,000,000)
Reclassification to nonredeemable noncontrolling interest							$ 114,000,000
Turner Renewable Energy \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage of noncontrolling interest						10.00%
SP Solar Holdings I, LP \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Sale of equity interest in limited partnership (percent)		33.00%
SP Solar Holdings I, LP \| Wholly Owned Subsidiary Of Southern Power \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Ownership interest		66.00%
SP Wind
Redeemable Noncontrolling Interest [Line Items]
Number of wind facilities \| wind_farm	8
SP Wind \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Sale of equity interest in limited partnership (percent)	100.00%
Distribution made to limited partner, cash distributions paid, percentage				60.00%
Number of financial investors \| investor	3
SP Wind \| Financial Investors
Redeemable Noncontrolling Interest [Line Items]
Distribution made to limited partner, cash distributions paid, percentage				40.00%
SP Wind \| Wholly Owned Subsidiary Of Southern Power \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Ownership interest	100.00%
General Partner \| SP Solar Holdings I, LP \| Wholly Owned Subsidiary Of Southern Power \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Ownership interest		1.00%
Variable Interest Entity, Primary Beneficiary \| SP Solar Holdings I, LP \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Assets				$ 6,300,000,000
Liabilities				113,000,000
Noncontrolling interests related to other partners' interest				1,200,000,000
Variable Interest Entity, Primary Beneficiary \| SP Wind \| Southern Power
Redeemable Noncontrolling Interest [Line Items]
Assets				2,500,000,000
Liabilities				51,000,000
Noncontrolling interests related to other partners' interest				$ 47,000,000