Corporate Debt to EBITDA Ratio

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- Definition

Effect on Long-Term Debt, Amount

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- Definition

Effect on Long-Term Debt, Net Amount Reduction

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No definition available.

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- Definition

Effect on Long-Term Debt, Original Amount

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- Definition

Effect on Long-Term Debt, Original Amount ,Reduction

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- Definition

The generation capacity of the entity's power generation facilities as of the balance sheet date, expressed in megawatts.

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- Definition

Restructuring, Non-recurring working Capital Improvements

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- Definition

Restructuring and Related Activities, Term

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- Definition

The quantified amount of the future effect on cash flows.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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- Definition

The amount that will be offset against future earnings by anticipated increases or decreases in other expenses or revenues.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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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.

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Nature of Business - Transformation Plan (Details) $ in Millions		42 Months Ended
	Jul. 12, 2017 USD ($) MW	Dec. 31, 2020 USD ($)	Dec. 31, 2017 MW
Restructuring Cost and Reserve [Line Items]
Generation capacity (in MW) \| MW			30,000
Transformation Plan
Restructuring Cost and Reserve [Line Items]
Term of plan	3 years
Transformation Plan \| Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Non-recurring working capital improvements		$ 370
Costs expected to be spent		$ 290
Transformation Plan \| Operations and Cost Excellence
Restructuring Cost and Reserve [Line Items]
Cost savings	$ 1,065
Transformation Plan \| Operations and Cost Excellence \| Annual Cost Savings
Restructuring Cost and Reserve [Line Items]
Cost savings	590
Transformation Plan \| Operations and Cost Excellence \| Net Margin Enhancement Program
Restructuring Cost and Reserve [Line Items]
Cost savings	215
Transformation Plan \| Operations and Cost Excellence \| Annual Reduction in Maintenance Capital Expenditures
Restructuring Cost and Reserve [Line Items]
Cost savings	50
Transformation Plan \| Operations and Cost Excellence \| Permanent Selling General and Administrative Reduction Associated with Asset Sales
Restructuring Cost and Reserve [Line Items]
Cost savings	$ 210
Transformation Plan \| Portfolio Optimization
Restructuring Cost and Reserve [Line Items]
Generation capacity (in MW) \| MW	6
Transformation Plan \| Portfolio Optimization \| Maximum
Restructuring Cost and Reserve [Line Items]
Effect on cash flows	$ 3,200
Transformation Plan \| Portfolio Optimization \| NRG Yield, Inc.
Restructuring Cost and Reserve [Line Items]
Ownership interest, percentage	100.00%
Transformation Plan \| Capital Structure and Allocation Enhancements
Restructuring Cost and Reserve [Line Items]
Effect on cash flows	$ 5,300
Reduction in consolidated debt, original amount	19,500
Reduction in consolidated debt	18,000
Consolidated debt original amount reduction	6,500
Consolidated debt, net amount reduction	$ 6,000
Corporate net debt to EBITDA ratio	3.0