Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment
Property, Plant and Equipment [Table Text Block]
Segment Reporting [Abstract]
Segment Reporting, Policy [Policy Text Block]
Segment Reporting, Policy [Policy Text Block]
Equity Method Investments and Joint Ventures [Abstract]
Investments Accounted for by the Equity Method and Variable Interest Entities
Equity Method Investments and Joint Ventures Disclosure [Text Block]
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Axis]
Other Comprehensive Income Location [Domain]
Other Comprehensive Income Location [Domain]
Gain (Loss) on Derivative Instruments [Member]
Gain (Loss) on Derivative Instruments [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Interest Expense [Member]
Interest Expense [Member]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Affiliated Entity [Member]
Affiliated Entity [Member]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurements, Recurring [Member]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Reported Value Measurement [Member]
Reported Value Measurement [Member]
Estimate of Fair Value Measurement [Member]
Estimate of Fair Value Measurement [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Level 1
Fair Value, Inputs, Level 1 [Member]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Interest rate contracts
Interest Rate Contract [Member]
Commodity contracts
Commodity Contract [Member]
Fair Value of Financial Instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability, Fair Value Determined Using Valuation Techniques, Percentage
Derivative Liability, Fair Value Determined Using Valuation Techniques, Percentage
Derivative Liability, Fair Value Determined Using Valuation Techniques, Percentage
Fair Value Assets, Measured on Recurring Basis, Valuation Techniques, Impact of Credit Reserve to Fair Value
Fair Value Assets, Measured on Recurring Basis, Valuation Techniques, Impact of Credit Reserve to Fair Value
This element represents the increase (decrease) to fair value from applying a credit reserve to reflect credit risk on the valuation techniques used to measure fair value of Level 2 and 3 derivative contracts which is calculated based on credit default swaps.
Derivative Assets
Derivative Asset, Fair Value, Gross Asset
Financing Receivable, Net
Financing Receivable, Net
Long-term debt, including current portion
Long-term Debt
Derivative Assets (Liabilities), at Fair Value, Net
Derivative Assets (Liabilities), at Fair Value, Net
Derivative Asset, Fair Value Determined Using Valuation Techniques, Percentage
Derivative Asset, Fair Value Determined Using Valuation Techniques, Percentage
This element represents the portion of total fair value of all derivative assets, which are valued using various valuation techniques including internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics.
Derivative Liabilities
Derivative Liability, Fair Value, Gross Liability
Concentration of Credit Risk
Concentration of credit risk [Abstract]
Concentration of credit risk [Abstract]
Credit risk exposure under certain long-term agreements for the next five years
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure
Period of credit risk exposure under certain long-term agreements (in years)
Estimated Counterparty Credit Risk Exposure to Certain Counterparties, Period
Estimated Counterparty Credit Risk Exposure to Certain Counterparties, Period
Due to Affiliate, Noncurrent
Due to Affiliate, Noncurrent
Long-term Debt and Capital Lease Obligations, Including Current Maturities
Long-term Debt and Capital Lease Obligations, Including Current Maturities
Accounting for Derivative Instruments and Hedging Activities Disclosure [Abstract]
-- None. No documentation exists for this element. --
Accounting for Derivative Instruments and Hedging Activities
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Document And Entity Information [Abstract]
-- None. No documentation exists for this element. --
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Common Class A [Member]
Common Class A [Member]
Common Class B [Member]
Common Class B [Member]
Common Class C [Member]
Common Class C [Member]
Common Class D [Member]
Common Class D [Member]
Common Class D [Member]
Class of Stock [Line Items]
Class of Stock [Line Items]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
Amendment Flag
Amendment Flag
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Current Reporting Status
Entity Current Reporting Status
Entity Filer Category
Entity Filer Category
Entity Voluntary Filers
Entity Voluntary Filers
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Segment Reporting
Segment Reporting Disclosure [Text Block]
Accounting Policies [Abstract]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Condensed Consolidating Financial Information Disclosure [Abstract]
-- None. No documentation exists for this element. --
Condensed Financial Statements [Text Block]
Condensed Financial Statements [Text Block]
Related Party Transactions [Abstract]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Thermal [Member]
Thermal [Member]
Represents Thermal segment of the entity.
Marsh Landing [Member]
Marsh Landing [Member]
Marsh Landing [Member]
Gen Conn Energy LLC [Member]
Gen Conn Energy LLC [Member]
Represents the information pertaining to GenConn Energy LLC.
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
GenOn Energy Services LLC [Member]
GenOn Energy Services LLC [Member]
GenOn Energy Services LLC [Member]
NRG [Member]
NRG [Member]
NRG [Member]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Scenario, Plan [Member]
Scenario, Plan [Member]
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Management Services Agreement with NRG
Management Services Agreement with NRG [Member]
Management Services Agreement with NRG [Member]
Related Party Transaction
Related Party Transaction [Line Items]
Management Services Fee, Annual
Service Management Costs
Management Services Fee, Increase
Service Management Costs, Fee Increase
Service Management Costs, Fee Increase
General and administrative — affiliate
General and Administrative Expense
Due to Related Parties
Due to Related Parties
Related Party Transaction, Expenses from Transactions with Related Party
Related Party Transaction, Expenses from Transactions with Related Party
CP Income Statement [Abstract]
CP Income Statement [Abstract]
Condensed Income Statement [Table]
Condensed Income Statement [Table]
NRG Yield LLC [Member]
NRG Yield LLC [Member]
NRG Yield LLC [Member]
Guarantor Subsidiaries [Member]
Guarantor Subsidiaries [Member]
Non-Guarantor Subsidiaries [Member]
Non-Guarantor Subsidiaries [Member]
NRG Yield Operating LLC [Member]
NRG Yield Operating LLC [Member]
NRG Yield Operating LLC [Member]
Consolidation, Eliminations [Member]
Consolidation, Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Condensed Income Statements, Captions [Line Items]
Total operating revenues
Revenues
Operating Costs and Expenses [Abstract]
Operating Costs and Expenses [Abstract]
Cost of operations
Cost of Revenue
Depreciation, Depletion and Amortization
Depreciation, Depletion and Amortization
Business Combination, Integration Related Costs
Business Combination, Integration Related Costs
Costs and Expenses
Costs and Expenses
Operating Income (Loss)
Operating Income (Loss)
Costs and Expenses [Abstract]
Costs and Expenses [Abstract]
Equity in Earnings of Consolidated Subsidiaries
Equity in Earnings of Consolidated Subsidiaries
This item represents the proportionate share of the parent in the earnings of the consolidated subsidiaries.
Income (Loss) from Equity Method Investments
Income (Loss) from Equity Method Investments
Other Nonoperating Income (Expense)
Other Nonoperating Income (Expense)
Gains (Losses) on Extinguishment of Debt
Gains (Losses) on Extinguishment of Debt
Interest Expense
Interest Expense
Total other expense, net
Nonoperating Income (Expense)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Parent
Net Income (Loss) Attributable to Parent
Income Statement [Abstract]
Statement [Table]
Statement [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Noncontrolling Interest [Member]
Noncontrolling Interest [Member]
Statement
Statement [Line Items]
Operating Revenues
Revenues [Abstract]
Depreciation and amortization
Total operating costs and expenses
Operating Income
Interest expense
Net Income
Net Income (Loss) Available to Common Stockholders, Basic
Net Income (Loss) Available to Common Stockholders, Basic
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Long-term Contract for Purchase of Electric Power [Axis]
Long-term Contract for Purchase of Electric Power [Axis]
Long-term Contract for Purchase of Electric Power [Domain]
Long-term Contract for Purchase of Electric Power [Domain]
Investment, Name [Axis]
Investment, Name [Axis]
Investment, Name [Domain]
Investment, Name [Domain]
Desert Sunlight [Member]
Desert Sunlight [Member]
Desert Sunlight [Member]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Public Shareholders [Member]
Public Shareholders [Member]
Public Shareholders [Member]
Scenario, Previously Reported [Member]
Scenario, Previously Reported [Member]
Power Generation Facilities by Type [Axis]
Power Generation Facilities by Type [Axis]
The types of power generation facilities included in the entity's total global generation portfolio.
Power Generation Facilities, Type [Domain]
Power Generation Facilities, Type [Domain]
Listing of power generation facilities included in the entity's total global generation portfolio.
Utility-Scale Solar [Member]
Utility-Scale Solar [Member]
Utility-Scale Solar [Member]
Thermal [Member]
Wind Farms [Member]
Wind Farms [Member]
Wind farm generation capacity.
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Spring Canyon [Member]
Spring Canyon [Member]
Spring Canyon [Member]
Spring Canyon III [Member]
Spring Canyon III [Member]
Spring Canyon III [Member]
Alta Wind Portfolio [Member]
Alta Wind Portfolio [Member]
Alta Wind Portfolio [Member]
UB Fuel Cell [Member]
UB Fuel Cell [Member]
UB Fuel Cell [Member]
Tapestry Wind [Member]
Tapestry Wind [Member]
Tapestry Wind [Member]
Laredo Ridge [Member]
Laredo Ridge [Member]
Laredo Ridge [Member]
Walnut Creek [Member]
Walnut Creek [Member]
Walnut Creek [Member]
EME-NYLD Assets [Member]
EME-NYLD Assets [Member]
EME-NYLD Assets [Member]
Acquired ROFO Assets [Domain]
Acquired ROFO Assets [Domain]
Acquired ROFO Assets [Domain]
Spring Canyon II [Member]
Spring Canyon II [Member]
Spring Canyon II [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Leasehold Rights [Member]
Leasehold Rights [Member]
Leasehold Rights [Member]
Supply Commitment Arrangement [Domain]
Supply Commitment Arrangement [Domain]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
5.375% Senior Notes due in 2024 [Member]
5.375% Senior Notes due in 2024 [Member]
5.375% Senior Notes due in 2024 [Member]
Business Acquisition
Business Acquisition [Line Items]
Percentage of Ownership
Percentage of Ownership
Percentage of Ownership
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Assets, Current
Assets, Current
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net
Business Acquisition, Pro Forma Revenue
Business Acquisition, Pro Forma Revenue
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash
Number of Facilities
Number of Facilities
Number of Facilities
Payments to Acquire Businesses, Gross
Payments to Acquire Businesses, Gross
Business Combination, Consideration Transferred
Business Combination, Consideration Transferred
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Non-current assets
Assets, Noncurrent
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles
Business Acquisition, Purchase Price Allocation, Intangible Assets, Other than Goodwill, Adjusted
Business Acquisition, Purchase Price Allocation, Intangible Assets, Other than Goodwill, Adjusted
Business Acquisition, Purchase Price Allocation, Intangible Assets, Other than Goodwill, Adjusted
Business Acquisition, Consideration Transferred, Working Capital
Business Acquisition, Consideration Transferred, Working Capital
Business Acquisition, Consideration Transferred, Working Capital
Business Combination, Consideration Transferred, Liabilities Incurred
Business Combination, Consideration Transferred, Liabilities Incurred
Weighted average remaining amortization period (in years)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Power Generation Capacity (in MWs)
Power Generation Capacity, Megawatts
The generation capacity of the entity's power generation facilities as of the balance sheet date, expressed in megawatts.
Line of Credit Facility, Maximum Borrowing Capacity
Line of Credit Facility, Maximum Borrowing Capacity
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Adjusted
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment, Adjusted
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment, Adjusted
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment, Adjusted
Equity Method Investment, Ownership Percentage
Equity Method Investment, Ownership Percentage
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities Longterm Debt
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities Longterm Debt
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities Longterm Debt
Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt, Adjusted
Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt, Adjusted
Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Long-term Debt, Adjusted
Sale of Stock, Number of Shares Issued in Transaction
Sale of Stock, Number of Shares Issued in Transaction
Share Price
Share Price
Proceeds from Issuance of Common Stock
Proceeds from Issuance of Common Stock
Proceeds from Issuance of Senior Long-term Debt
Proceeds from Issuance of Senior Long-term Debt
Debt Instrument, Interest Rate, Stated Percentage
Debt Instrument, Interest Rate, Stated Percentage
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets
Business Acquisition, Purchase Price Allocation, Other Assets, Adjusted
Business Acquisition, Purchase Price Allocation, Other Assets, Adjusted
Business Acquisition, Purchase Price Allocation, Other Assets, Adjusted
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Long-term Debt
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Total Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Total Assets
Business Acquisition, Purchase Price Allocation, Assets Acquired, Adjusted
Business Acquisition, Purchase Price Allocation, Assets Acquired, Adjusted
Business Acquisition, Purchase Price Allocation, Assets Acquired, Adjusted
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current and Non-Current Liabilities
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current and Noncurrent Liabilities
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current and Noncurrent Liabilities
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current and Noncurrent Liabilities
Business Acquisition, Purchase Price Allocation, Current and Non-current Liabilities, Adjusted
Business Acquisition, Purchase Price Allocation, Current and Non-current Liabilities, Adjusted
Business Acquisition, Purchase Price Allocation, Current and Non-current Liabilities, Adjusted
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities
Business Acquisition, Purchase Price Allocation, Liabilities Assumed, Adjusted
Business Acquisition, Purchase Price Allocation, Liabilities Assumed, Adjusted
Business Acquisition, Purchase Price Allocation, Liabilities Assumed, Adjusted
Business Acquisitions, Consideration Transferred, Purchase Price
Business Acquisitions, Consideration Transferred, Purchase Price
Business Acquisitions, Consideration Transferred, Purchase Price
Business Acquisition, Pro Forma Net Income(Loss), Including Portion Attributable to Noncontrolling Interest
Business Acquisition, Pro Forma Net Income(Loss), Including Portion Attributable to Noncontrolling Interest
Business Acquisition, Pro Forma Net Income(Loss), Including Portion Attributable to Noncontrolling Interest
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets
Total Assets
Assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt
Other Liabilities
Other Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Current and Non-Current Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Current and Non-Current Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Current and Non-Current Liabilities
Liabilities
Liabilities
Net Assets
Net Assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Net Assets Acquired
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Net Assets Acquired
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Net Assets Acquired
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Adjusted
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Adjusted
Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net Adjusted
Business Combination, Separately Recognized Transactions, Net Gains and Losses
Business Combination, Separately Recognized Transactions, Net Gains and Losses
Other Assets
Other Assets
Accumulated Other Comprehensive Income (Loss), before Tax
AOCI Including Portion Attributable to Noncontrolling Interest, before Tax
Debt Disclosure [Abstract]
Schedule of long-term debt
Schedule of Debt [Table Text Block]
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Support Equipment and Facilities [Member]
Support Equipment and Facilities [Member]
Land and improvements
Land and Land Improvements [Member]
Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross
Property, Plant and Equipment, Gross
Under construction
Construction in Progress, Gross
Less accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Property, plant and equipment, useful life
Property, Plant and Equipment, Useful Life
Summary of Significant Accounting Policies [Table]
Summary of Significant Accounting Policies [Table]
Summary of Significant Accounting Policies [Table]
Alta X and XI TE Holdco [Member]
Alta X and XI TE Holdco [Member]
Alta X and XI TE Holdco [Member]
Other Ownership Interests Name [Axis]
Other Ownership Interests Name [Axis]
Other Ownership Interests, Name [Domain]
Other Ownership Interests, Name [Domain]
Financial Institutions [Member]
Financial Institutions [Member]
Represents the information pertaining to the financial institutions.
Summary of Significant Accounting Policies [Line Items]
Summary of Significant Accounting Policies [Line Items]
[Line Items] for Summary of Significant Accounting Policies [Table]
Dividends Payable, Date of Record
Dividends Payable, Date of Record
Dividends Per Class A Common Share
Common Stock, Dividends, Per Share, Cash Paid
Dividends Payable, Date to be Paid
Dividends Payable, Date to be Paid
Dividends Payable, Date Declared
Dividends Payable, Date Declared
Common Stock, Dividends, Per Share, Declared
Common Stock, Dividends, Per Share, Declared
New Accounting Pronouncement, Effect on Total Assets and Total Liabilities
New Accounting Pronouncement, Effect on Total Assets and Total Liabilities
New Accounting Pronouncement, Effect on Total Assets and Total Liabilities
Proceeds from Noncontrolling Interests
Proceeds from Noncontrolling Interests
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Stockholders' Equity Attributable to Noncontrolling Interest
Stockholders' Equity Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Payments of Dividends
Payments of Dividends
Noncontrolling Interest, Increase from Business Combination
Noncontrolling Interest, Increase from Business Combination
Schedule of Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Condensed Cash Flow Statement [Table Text Block]
Condensed Cash Flow Statement [Table Text Block]
Condensed Balance Sheet [Table Text Block]
Condensed Balance Sheet [Table Text Block]
Condensed Statement of Comprehensive Income [Table Text Block]
Condensed Statement of Comprehensive Income [Table Text Block]
Condensed Income Statement [Table Text Block]
Condensed Income Statement [Table Text Block]
CP Comprehensive Income [Abstract]
CP Comprehensive Income [Abstract]
Condensed Balance Sheet Statement [Table]
Condensed Balance Sheet Statement [Table]
Condensed Balance Sheet Statements, Captions [Line Items]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of long-term debt
Long-term Debt and Capital Lease Obligations, Current
Cash and Cash Equivalents, at Carrying Value
Cash and Cash Equivalents, at Carrying Value
Restricted Cash and Cash Equivalents, Current
Restricted Cash and Cash Equivalents, Current
Accounts Receivable, Net, Current
Accounts Receivable, Net, Current
Due from Affiliate, Current
Due from Affiliate, Current
Inventory, Net
Inventory, Net
Derivative Asset
Derivative Asset
Notes, Loans and Financing Receivable, Net, Current
Notes, Loans and Financing Receivable, Net, Current
Prepaid Expense and Other Assets, Current
Prepaid Expense and Other Assets, Current
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Equity Method Investments
Equity Method Investments
Notes, Loans and Financing Receivable, Net, Noncurrent
Notes, Loans and Financing Receivable, Net, Noncurrent
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Net
Derivative Asset, Noncurrent
Derivative Asset, Noncurrent
Other Assets, Noncurrent
Other Assets, Noncurrent
Assets
Accounts Payable, Current
Accounts Payable, Current
Due to Affiliate, Current
Due to Affiliate, Current
Derivative Liability, Current
Derivative Liability, Current
Accrued Expenses and Other Current Liabilities
Accrued Expenses and Other Current Liabilities
Sum of accrued expenses and other current liabilities. Accrued expenses are the carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, that are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Other current liabilities are the aggregate carrying amount, as of the balance sheet date, of current liabilities not separately disclosed in the balance sheet due to materiality considerations. Current liabilities are expected to be paid within one year (or the normal operating cycle, if longer).
Liabilities, Current
Liabilities, Current
Liabilities, Noncurrent [Abstract]
Liabilities, Noncurrent [Abstract]
Long-term Debt and Capital Lease Obligations
Long-term Debt and Capital Lease Obligations
Derivative Liability, Noncurrent
Derivative Liability, Noncurrent
Other Liabilities, Noncurrent
Other Liabilities, Noncurrent
Liabilities, Noncurrent
Liabilities, Noncurrent
Commitments and Contingencies
Commitments and Contingencies
Members' Capital
Members' Capital
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit)
Members' Equity Attributable to Noncontrolling Interest
Members' Equity Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax
Members' Equity
Members' Equity
Liabilities and Equity
Liabilities and Equity
Stockholders' Equity Attributable to Parent [Abstract]
Business Acquisitions [Abstract]
Business Acquisitions [Abstract]
Business Acquisition, Purchase Price [Table Text Block]
Business Acquisition, Purchase Price [Table Text Block]
Business Acquisition, Purchase Price [Table Text Block]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Business Acquisition, Pro Forma Information [Table Text Block]
Business Acquisition, Pro Forma Information [Table Text Block]
Nature of Business [Abstract]
Nature of Business [Abstract]
Derivative [Table]
Derivative [Table]
Derivatives by Underlying Assets [Axis]
Derivatives by Underlying Assets [Axis]
Derivatives by the underlying asset from which its value is derived.
Underlying Assets [Domain]
Underlying Assets [Domain]
Major types of referenced/ underlying assets.
Natural Gas [Member]
Natural Gas [Member]
Interest
Interest [Member]
Details pertaining to interest rate swaps which are considered a derivative commodity.
Operating Revenues [Member]
Sales [Member]
Measurement Unit [Axis]
Measurement Unit [Axis]
Represents information pertaining to various measurement units.
Measurement Unit [Domain]
Measurement Unit [Domain]
Represents various measurement units used by the entity.
MMbtu
MMbtu [Member]
Represents unit of measurement that is used to measure quantity of natural gas.
Dollars
United States of America, Dollars
Interest rate contracts current
Interest Rate Contract Current [Member]
The current portion of a derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.
Interest rate contracts long-term
Interest Rate Contract Non Current [Member]
The noncurrent portion of a derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.
Commodity contracts current
Commodity Contract Current [Member]
The current portion of a derivative instrument whose primary underlying risk is tied to commodity prices.
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Derivatives Designated as Cash Flow Hedges
Designated as Hedging Instrument [Member]
Derivatives Not Designated as Cash Flow Hedges
Not Designated as Hedging Instrument [Member]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative
Derivative [Line Items]
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net
Derivative Liability
Derivative Liability
Derivative, Notional Amount
Derivative, Notional Amount
Fair Value of Derivative Instruments
Derivative, Fair Value, Net [Abstract]
Derivative Liabilities
Fair Value of Gross Derivative Assets/(Liabilities), Net
Fair Value of Gross Derivative Assets/(Liabilities), Net
Fair value of gross derivative assets less fair value of gross derivative liabilities.
Derivative Liability, Fair Value, Gross Asset
Derivative Liability, Fair Value, Gross Asset
Derivative Asset, Fair Value, Gross Liability
Derivative Asset, Fair Value, Gross Liability
Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset
Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset
Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset
Derivative Asset, Fair Value, Amount Offset Against Collateral Net Of Derivative Liability, Fair Value, Amount Offset Against Collateral
Derivative Asset, Fair Value, Amount Offset Against Collateral Net Of Derivative Liability, Fair Value, Amount Offset Against Collateral
Derivative Asset, Fair Value, Amount Offset Against Collateral Net Of Derivative Liability, Fair Value, Amount Offset Against Collateral
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
Accumulated OCL beginning balance
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax
Mark-to-market of cash flow hedge accounting contracts
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax
Accumulated OCL ending balance, net of income tax benefit of $14 and $1, respectively
Loss expected to be realized from OCI during the next 12 months, net of tax
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Summary of Derivative Instruments Impact on Results of Operations
Summary of Derivative Instruments Impact on Results of Operations [Abstract]
Unrealized gain/(loss) on derivatives
Unrealized Gain (Loss) on Derivatives
Derivative, Collateral, Right to Reclaim Cash
Derivative, Collateral, Right to Reclaim Cash
Derivative, Collateral, Obligation to Return Cash
Derivative, Collateral, Obligation to Return Cash
Derivative Asset, Fair Value Determined Using Valuation Techniques, Percentage
Derivative Instruments and Hedges, Noncurrent
Derivative Instruments and Hedges, Noncurrent
Estimated carrying values and fair values of the Company's recorded financial instruments
Fair Value, by Balance Sheet Grouping [Table Text Block]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Property, Plant and Equipment Disclosure
Property, Plant and Equipment Disclosure [Text Block]
Nature of Business Disclosure [Abstract]
-- None. No documentation exists for this element. --
Schedule of Ownership Percentage, Net Capacity, Offtake Counterparty and Year of Offtake Expiration by Operating Asset [Table Text Block]
Schedule of Ownership Percentage, Net Capacity, Offtake Counterparty and Year of Offtake Expiration by Operating Asset [Table Text Block]
Schedule of Ownership Percentage, Net Capacity, Offtake Counterparty and Year of Offtake Expiration by Operating Asset [Table Text Block]
Business Description and Basis of Presentation [Text Block]
Business Description and Basis of Presentation [Text Block]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Business Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Conventional Generation
Conventional Generation [Member]
Conventional Generation [Member]
Corporate
Corporate Segment [Member]
Renewables
Renewables [Member]
Renewables [Member]
Segment Reporting
Segment Reporting Information [Line Items]
Cost of operations
Operating Expenses
Business Combination, Acquisition Related Costs
Business Combination, Acquisition Related Costs
Operating income
Statement of Financial Position [Abstract]
Intangible assets, accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Business Acquisition
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Net notional volume buy/(sell) of NRG Yield's open derivative transactions broken out by commodity
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Fair value within the derivative instrument valuation on the balance sheets
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Offsetting of derivatives by counterparty master agreement level and collateral received or paid
Offsetting Liabilities [Table Text Block]
Effects of NRG Yield's accumulated OCI balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
ASSETS
Assets [Abstract]
Current Assets
Assets, Current [Abstract]
Cash and cash equivalents
Total current assets
Property, plant and equipment
In service
Property, Plant and Equipment, Other, Gross
Total property, plant and equipment
Net property, plant and equipment
Other Assets
Assets, Noncurrent [Abstract]
Intangible assets, net of accumulated amortization of $64 and $36
Total other assets
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities and Equity [Abstract]
Current Liabilities
Liabilities, Current [Abstract]
Total current liabilities
Total non-current liabilities
Total Liabilities
Stockholders' Equity
Members' Equity
Total Liabilities and Stockholders’ Equity
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
GCE Holdings LLC
GCE Holding LLC [Member]
Represents the GCE Holding LLC GCE Holding LLC which wholly-owns GenConn Energy LLC.
Schedule of Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Summarized financial information of equity method investment
Equity Method Investments [Table Text Block]
Noncontrolling Interest [Abstract]
Noncontrolling Interest Disclosure [Text Block]
Noncontrolling Interest Disclosure [Text Block]
Fair Value of Financial Instruments
Fair Value Disclosures [Text Block]
Nature of Business [Table]
Nature of Business [Table]
Nature of Business [Table]
Southern California Edison [Member]
Southern California Edison [Member]
Southern California Edison [Member]
Pacific Gas and Electric [Member]
Pacific Gas and Electric [Member]
Pacific Gas and Electric [Member]
Drop-down Acquisition [Member]
Drop-down Acquisition [Member]
Drop-down Acquisition [Member]
NRG Yield, Inc. [Member]
NRG Yield, Inc. [Member]
NRG Yield, Inc. [Member]
NRG Yield LLC
NRG
GenConn Middletown
GenConn Middletown [Member]
GenConn Middletown [Member]
GenConn Devon [Member]
GenConn Devon [Member]
GenConn Devon [Member]
Marsh Landing
El Segundo [Member]
El Segundo [Member]
El Segundo [Member]
Alpine
Alpine [Member]
Alpine [Member]
Avenal
Avenal [Member]
Avenal [Member]
Avra Valley
Avra Valley [Member]
Avra Valley [Member]
NRG Solar Blythe LLC [Member]
NRG Solar Blythe LLC [Member]
Represents NRG Solar Blythe LLC, a wholly-owned subsidiary of the entity.
Borrego
Borrego [Member]
Borrego [Member]
Roadrunner
NRG Solar Roadrunner LLC [Member]
NRG Solar Roadrunner LLC [Member]
CVSR
CVSR [Member]
CVSR [Member]
RE Kansas South [Member]
RE Kansas South [Member]
RE Kansas South [Member]
TA - High Desert LLC [Member]
TA - High Desert LLC [Member]
TA - High Desert LLC [Member]
AZ DG Solar Projects
AZ DG Solar Projects [Member]
AZ DG Solar Projects [Member]
PFMG DG Solar Projects
PFMG DG Solar Projects [Member]
PFMG DG Solar Projects [Member]
Alta I [Member]
Alta I [Member]
Alta I [Member]
Alta II [Member]
Alta II [Member]
alta II [Member]
Alta III [Member]
Alta III [Member]
Alta III
Alta IV [Member]
Alta IV [Member]
Alta IV [Member]
Alta V [Member]
Alta V [Member]
Alta V [Member]
Alta X [Member]
Alta X [Member]
Alta X [Member]
Alta XI [Member]
Alta XI [Member]
Alta XI [Member]
South Trent
South Trent Holding LLC [Member]
South Trent Holding LLC [Member]
Taloga [Member]
Taloga [Member]
Taloga [Member]
Pinnacle [Member]
Pinnacle [Member]
Pinnacle [Member]
Buffalo Bear [Member]
Buffalo Bear [Member]
Buffalo Bear [Member]
Distributed Solar
Distributed Solar [Member]
Distributed solar generation capacity.
Conventional
Utility-Scale Solar
Nature of Business
Basis of Presentation [Line Items]
Basis of Presentation [Line Items]
Sale of Stock, Percentage of Ownership after Transaction
Sale of Stock, Percentage of Ownership after Transaction
Megawatts Thermal Equivalent, Available Under right-to-use Provisions
Megawatts Thermal Equivalent, Available Under right-to-use Provisions
Megawatts Thermal Equivalent, Available Under right-to-use Provisions
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Voting Interest
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Voting Interest
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Voting Interest
Sale of Stock, Price Per Share
Sale of Stock, Price Per Share
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest
Steam and Chilled Water Capacity, Megawatts Thermal Equivalent
Steam and Chilled Water Capacity, Megawatts Thermal Equivalent
The generation capacity of the entity's thermal power generation facilities as of the balance sheet date, expressed in megawatts thermal equivalent.
Business Combination, Consideration Transferred
Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions
Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Period [Axis]
Period [Axis]
Period [Axis]
Period [Domain]
Period [Domain]
[Domain] for Period [Axis]
Post-Flip Point [Member]
Post-Flip Point [Member]
Post-Flip Point [Member]
Pre-determined Date Through Flip Point If Flip Has Not Occured [Member]
Pre-determined Date Through Flip Point If Flip Has Not Occured [Member]
Pre-determined Date Through Flip Point If Flip Hasn't Occured [Member]
Second Year through Flip Point [Member]
Second Year through Flip Point [Member]
Second Year through Flip Point [Member]
First Year [Member]
First Year [Member]
First Year [Member]
NRG Renew [Member]
NRG Renew [Member]
NRG Renew [Member]
Investment Type [Axis]
Investment Type [Axis]
Investments [Domain]
Investments [Domain]
Existing Portfolio of Leases [Member]
Existing Portfolio of Leases [Member]
Existing Portfolio of Leases [Member]
Tax Equity Financed Portfolio of Leases [Member]
Tax Equity Financed Portfolio of Leases [Member]
Tax Equity Financed Portfolio of Leases [Member]
NRG DGPV Holdco [Member]
NRG DGPV Holdco [Member]
NRG DGPV Holdco [Member]
NRG RPV Holdco [Member]
NRG RPV Holdco [Member]
NRG RPV Holdco [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Fixed Rate Notes
Fixed Rate Notes [Member]
Fixed Rate Notes [Member]
Working Capital Facility [Member]
Working Capital Facility [Member]
Working Capital Facility [Member]
Term Loan Facility [Member]
Term Loan Facility [Member]
Term Loan Facility [Member]
Variable Interest Entity
Variable Interest Entity [Line Items]
Taxable Income Allocation, Pre-Flip
Taxable Income Allocation, Pre-Flip
Taxable Income Allocation, Pre-Flip
Intangible Assets, Net (Excluding Goodwill)
Intangible Assets, Net (Excluding Goodwill)
Noncontrolling Interest in Variable Interest Entity
Noncontrolling Interest in Variable Interest Entity
Proceeds from Noncontrolling Interests
Economic interest in equity method investments (as a percent)
Number of Solar Leases in Portfolio
Number of Solar Leases in Portfolio
Number of Solar Leases in Portfolio
Remaining Lease Term
Remaining Lease Term
Remaining Lease Term
Interest rate
Operating income
Power Generation Units, Number
Power Generation Units, Number
The number of power generation units as of the balance sheet date.
(Investments in) Proceeds From Sales of Unconsolidated Affiliates
(Investments in) Proceeds From Sales of Unconsolidated Affiliates
(Investments in) Proceeds From Sales of Unconsolidated Affiliates
Basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Proceeds from Debt, Net of Issuance Costs
Proceeds from Debt, Net of Issuance Costs
Line of Credit Facility, Fair Value of Amount Outstanding
Line of Credit Facility, Fair Value of Amount Outstanding
Taxable Income Allocation, Post-Flip
Taxable Income Allocation, Post-Flip
Taxable Income Allocation, Post-Flip
Percentage of Cash Available for Distributions
Percentage of Cash Available for Distributions
Percentage of Cash Available for Distributions
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event [Member]
Subsequent Event [Member]
Debt Instrument Period [Axis]
Debt Instrument Period [Axis]
Debt Instrument Period [Axis]
Debt Instrument Period [Domain]
Debt Instrument Period [Domain]
[Domain] for Debt Instrument Period [Axis]
September 1, 2020 through maturity [Member]
September 1, 2020 through maturity [Member]
September 1, 2020 through maturity [Member]
December 17, 2014 to December 31, 2018 [Member]
December 17, 2014 to December 31, 2018 [Member]
December 17, 2014 to December 31, 2018 [Member]
January 1, 2019 to December 31, 2023 [Member]
January 1, 2019 to December 31, 2023 [Member]
January 1, 2019 to December 31, 2023 [Member]
January 1, 2024 to March 31, 2028 [Member]
January 1, 2024 to March 31, 2028 [Member]
January 1, 2024 to March 31, 2028 [Member]
November 12, 2014 to December 20, 2018 [Member]
November 12, 2014 to December 20, 2018 [Member]
November 12, 2014 to December 20, 2018 [Member]
December 21, 2018 to December 31, 2021 [Member]
December 21, 2018 to December 31, 2021 [Member]
December 21, 2018 to December 31, 2021 [Member]
October 21, 2014 to September 30, 2018 [Member]
October 21, 2014 to September 30, 2018 [Member]
October 21, 2014 to September 30, 2018 [Member]
October 1, 2018 to September 30, 2022 [Member]
October 1, 2018 to September 30, 2022 [Member]
October 1, 2018 to September 30, 2022 [Member]
October 1, 2022 to May 31, 2023 [Member]
October 1, 2022 to May 31, 2023 [Member]
October 1, 2022 to May 31, 2023 [Member]
September 22, 2010 to March 18, 2015 [Member]
September 22, 2010 to March 18, 2015 [Member]
September 22, 2010 to March 18, 2015 [Member]
March 18, 2015 to March 17, 2022 [Member]
March 18, 2015 to March 17, 2022 [Member]
March 18, 2015 to March 17, 2022 [Member]
March 18, 2022 to March 17, 2027 [Member]
March 18, 2022 to March 17, 2027 [Member]
March 18, 2022 to March 17, 2027 [Member]
March 18, 2027 through Maturity [Member]
March 18, 2027 through Maturity [Member]
March 18, 2027 through Maturity [Member]
September 1, 2017 to August 31, 2020 [Member]
September 1, 2017 to August 31, 2020 [Member]
September 1, 2017 to August 31, 2020 [Member]
Minimum [Member]
Maximum [Member]
Maturity Date [Axis]
Maturity Date [Axis]
Maturity Date [Axis]
Maturity Date [Domain]
Maturity Date [Domain]
[Domain] for Maturity Date [Axis]
December 30, 2034 [Member]
December 30, 2034 [Member]
December 30, 2034 [Member]
January 31, 2031 [Member]
January 31, 2031 [Member]
January 31, 2031 [Member]
May 15, 2031 [Member]
May 15, 2031 [Member]
May 15, 2031 [Member]
March 31, 2020 [Member]
March 31, 2020 [Member]
March 31, 2020 [Member]
June 30, 2035 [Member]
June 30, 2035 [Member]
June 30, 2035 [Member]
3.25% Convertible Notes due 2020 [Member]
3.25% Convertible Notes due 2020 [Member]
3.25% Convertible Notes due 2020 [Member]
3.5% Convertible Notes due 2019 [Member]
Intercompany Credit Agreement [Member]
Intercompany Credit Agreement [Member]
Alta Wind I, lease financing arrangement, due 2034 [Member]
Alta Wind I, lease financing arrangement, due 2034 [Member]
Alta Wind I, lease financing arrangement, due 2034 [Member]
Alta Realty Investments, due 2031 [Member]
Alta Realty Investments, due 2031 [Member]
Alta Realty Investments, due 2031 [Member]
NRG Marsh Landing LLC, due 2017 and 2023
Marsh Landing Term Loan Facility [Member]
Marsh Landing Term Loan Facility [Member]
NRG Marsh Landing LLC, due 2023
Marsh Landing Tranche B due 2023 [Member]
Marsh Landing Tranche B due 2023 [Member]
Walnut Creek Energy, LLC, due in 2023 [Member]
Walnut Creek Energy, LLC, due in 2023 [Member]
Walnut Creek Energy, LLC, due in 2023 [Member]
Marsh Landing Tranche A due December 2017 [Member]
Marsh Landing Tranche A due December 2017 [Member]
Marsh Landing Tranche A due December 2017 [Member]
NRG Solar Alpine, due 2022
Alpine Financing Agreement, due 2022 [Member]
Alpine Financing Agreement, due 2022 [Member]
Tapestry Wind LLC due in 2021 [Member]
Tapestry Wind LLC due in 2021 [Member]
Tapestry Wind LLC due in 2021 [Member]
Alpine Financing Agreement [Member]
Alpine Financing Agreement [Member]
Alpine Financing Agreement [Member]
Laredo Ridge Wind, LLC, due in 2026 [Member]
Laredo Ridge Wind, LLC, due in 2026 [Member]
Laredo Ridge Wind, LLC, due in 2026 [Member]
Borrego Financing [Member]
Borrego Financing [Member]
Borrego Financing [Member]
Alpine [Member]
NRG Energy Center Minneapolis LLC, senior secured notes, due 2013, 2017, and 2025
NRG Energy Center Minneapolis LLC Senior Secured Notes [Member]
Represents senior secured notes financed by NRG Energy Center Minneapolis LLC, which are due 2013, 2017, and 2025.
NRG Energy Center Minneapolis LLC, senior secured notes, due 2017
NRG Energy Center Minneapolis LLC Senior Secured Notes, due 2017 [Member]
NRG Energy Center Minneapolis LLC Senior Secured Notes, due 2017 [Member]
NRG Energy Center Minneapolis LLC, senior secured notes, due 2025
NRG Energy Center Minneapolis LLC Senior Secured Notes, due 2025 [Member]
NRG Energy Center Minneapolis LLC Senior Secured Notes, due 2025 [Member]
NRG Borrego I LLC, due 2024
Borrego Financing Agreement, due 2024 [Member]
Borrego Financing Agreement, due 2024 [Member]
NRG Borrego I LLC, due 2038
Borrego Financing Agreement, due 2038 [Member]
Borrego Financing Agreement, due 2038 [Member]
South Trent Wind LLC, due 2020
South Trent Financing Agreement [Member]
South Trent Financing Agreement [Member]
NRG Solar Avra Valley LLC, due 2031
Avra Valley Financing Agreement [Member]
Avra Valley Financing Agreement [Member]
High Desert Facility [Member]
High Desert Facility [Member]
High Desert Facility [Member]
WCEP Holdings, LLC, due in 2023 [Member]
WCEP Holdings, LLC, due in 2023 [Member]
WCEP Holdings, LLC, due in 2023 [Member]
NRG Roadrunner LLC, due 2031
Roadrunner Financing Agreement [Member]
Roundrunner Financing Agreement [Member]
Kansas South Facility, due 2031 [Member]
Kansas South Facility, due 2031 [Member]
Kansas South Facility, due 2031 [Member]
NRG Solar Blythe LLC, due 2028
NRG Solar Blythe LLC Credit Agreement Due 2028 [Member]
Represent NRG Solar Blythe LLC credit agreement, which is due 2028.
PFMG and related subsidiaries, due 2030
PFMG Financing Agreement [Member]
PFMG Financing Agreement [Member]
NRG Energy Center Princeton LLC, due 2017
NRG Energy Center Princeton LLC, due 2017 [Member]
NRG Energy Center Princeton LLC, due 2017 [Member]
NRG Yield Revolving Credit Facility
NRG Yield Revolving Credit Facility [Member]
NRG Yield Revolving Credit Facility [Member]
Alta Wind X and Alta Wind XI, due 2020 [Member]
Alta Wind X and Alta Wind XI, due 2020 [Member]
Alta Wind X and Alta Wind XI, due 2020 [Member]
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Alta Wind Asset Management, due 2031 [Member]
Alta Wind Asset Management, due 2031 [Member]
Alta Wind Asset Management, due 2031 [Member]
West Holdings Credit Agreement [Member]
West Holdings Credit Agreement [Member]
West Holdings Credit Agreement [Member]
Alta Wind X, due 2020 [Member]
Alta Wind X, due 2020 [Member]
Alta Wind X, due 2020 [Member]
Alta Wind XI, due 2020 [Member]
Alta Wind XI, due 2020 [Member]
Alta Wind XI, due 2020 [Member]
Alta Wind II, lease financing arrangement, due 2034 [Member]
Alta Wind II, lease financing arrangement, due 2034 [Member]
Alta Wind II, lease financing arrangement, due 2034 [Member]
Alta Wind III, lease financing arrangement, due 2034 [Member]
Alta Wind III, lease financing arrangement, due 2034 [Member]
Alta Wind III, lease financing arrangement, due 2034 [Member]
Alta Wind IV, lease financing arrangement, due 2034 [Member]
Alta Wind IV, lease financing arrangement, due 2034 [Member]
Alta Wind IV, lease financing arrangement, due 2034 [Member]
Alta Wind V, lease financing arrangement, due 2035 [Member]
Alta Wind V, lease financing arrangement, due 2035 [Member]
Alta Wind V, lease financing arrangement, due 2035 [Member]
Project [Domain]
Project [Domain]
High Desert Facility, due 2033 [Member]
High Desert Facility, due 2033 [Member]
High Desert Facility, due 2033 [Member]
TA - High Desert, due 2023 [Member]
TA - High Desert, due 2023 [Member]
TA - High Desert, due 2023 [Member]
West Holdings Credit Agreement due 2023 Tranche A [Member]
West Holdings Credit Agreement due 2023 Tranche A [Member]
West Holdings Credit Agreement due 2023 Tranche A [Member]
West Holdings Credit Agreement due 2023 Tranche B [Member]
West Holdings Credit Agreement due 2023 Tranche B [Member]
West Holdings Credit Agreement due 2023 Tranche B [Member]
Lease Financing Arrangement [Member]
Lease Financing Arrangement [Member]
Lease Financing Arrangement [Member]
Notes Payable, Other Payables [Member]
Notes Payable, Other Payables [Member]
Cash Grant Loan
Cash Grant Loan [Member]
Cash Grant Loan [Member]
Term Loan Facility
Letter of Credit [Member]
Letter of Credit [Member]
NRG Yield LLC [Member]
NRG Wind LLC [Member]
NRG Wind LLC [Member]
NRG Solar Roadrunner LLC
WCEP Holdings LLC [Member]
WCEP Holdings LLC [Member]
WCEP Holdings LLC [Member]
Non-affiliate
Non-affiliated Entity [Member]
A non-affiliate is a party that does not control, or is not controlled by, or is not under common control with the entity.
Interest Rate Swap [Member]
Interest Rate Swap [Member]
Long-term Debt Disclosure
Debt Instrument [Line Items]
Convertible Debt
Convertible Debt
Debt Issuance Cost
Debt Issuance Cost
Letters of Credit Outstanding, Amount
Letters of Credit Outstanding, Amount
Long-term debt, excluding current maturities
Long-term Debt, Excluding Current Maturities
Variable rate basis
Debt Instrument, Description of Variable Rate Basis
Line of Credit Facility, Commitment Fee Percentage
Line of Credit Facility, Commitment Fee Percentage
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid
Debt Instrument, Convertible, Conversion Price
Debt Instrument, Convertible, Conversion Price
Debt Instrument, Convertible, Conversion Ratio
Debt Instrument, Convertible, Conversion Ratio
Senior Notes
Senior Notes
Credit Facility, Maximum Borrowing Capacity, Amendment
Credit Facility, Maximum Borrowing Capacity, Amendment
Credit Facility, Maximum Borrowing Capacity, Amendment
Proceeds from Issuance of Debt
Proceeds from Issuance of Debt
Notional Amount of Interest Rate Derivatives
Repayments of Debt
Repayments of Debt
Extinguishment of Debt, Amount
Extinguishment of Debt, Amount
Percentage of Debt Hedged by Interest Rate Derivatives
Percentage of Debt Hedged by Interest Rate Derivatives
Derivative, Fixed Interest Rate
Derivative, Fixed Interest Rate
Derivative, Forward Interest Rate
Derivative, Forward Interest Rate
Debt Instrument, Face Amount
Debt Instrument, Face Amount
Other Nonoperating Income (Expense)
Nonoperating Income (Expense)
Condensed Cash Flow Statement [Table]
Condensed Cash Flow Statement [Table]
Condensed Cash Flow Statements, Captions [Line Items]
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities
Net Cash Provided by (Used in) Operating Activities
Intercompany (Payments to) Receipts from Consolidated Subsidiaries
Intercompany (Payments to) Receipts from Consolidated Subsidiaries
Intercompany (Payments to) Receipts from Consolidated Subsidiaries
Acquisition of businesses, net of cash acquired
Payments to Acquire Property, Plant, and Equipment
Payments to Acquire Property, Plant, and Equipment
Increase (Decrease) in Restricted Cash
Increase (Decrease) in Restricted Cash
Increase (Decrease) in Notes Receivable
Increase (Decrease) in Notes Receivable
The net change during the reporting period of amounts due from note holders for outstanding loans for both amounts due within one year (or one business cycle) and amounts due beyond one year.
Proceeds from Renewable Energy Grants
Proceeds from Renewable Energy Grants
The amount of cash received during the period for renewable energy grants related to capital projects.
Payments for (Proceeds from) Other Investing Activities
Payments for (Proceeds from) Other Investing Activities
Net Cash Provided by (Used in) Investing Activities
Net Cash Provided by (Used in) Investing Activities
Proceeds from Payments to Intercompany Loans
Proceeds from Payments to Intercompany Loans
The cash inflow or outflow associated with intercompany loans for related parties.
Investment in Consolidated Subsidiaries
Investment in Consolidated Subsidiaries
Investment in Consolidated Subsidiaries
Payments of Dividends
Proceeds from Issuance of Long-term Debt
Proceeds from Issuance of Long-term Debt
Proceeds from Related Party Debt
Proceeds from Related Party Debt
Payments of Debt Issuance Costs
Payments of Debt Issuance Costs
Proceeds from (Repayments of) Debt
Proceeds from (Repayments of) Debt
Net Cash Provided by (Used in) Financing Activities
Net Cash Provided by (Used in) Financing Activities
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and Cash Equivalents, Period Increase (Decrease)
Condensed Statement of Comprehensive Income [Table]
Condensed Statement of Comprehensive Income [Table]
Condensed Statement of Income Captions [Line Items]
Condensed Statement of Income Captions [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Statement of Comprehensive Income [Abstract]
Other Comprehensive Loss, net of tax
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Unrealized loss on derivatives
Other comprehensive loss
Comprehensive (Loss) Income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Proceeds from Contributions from Parent
Proceeds from Contributions from Parent
Payments of Capital Distribution
Payments of Capital Distribution
Payments of Financing Costs
Payments of Financing Costs
Related Party Transactions Disclosure
Related Party Transactions Disclosure [Text Block]
Distributions [Policy Text Block]
Distributions [Policy Text Block]
Distributions [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Recent Accounting Developments
New Accounting Pronouncements, Policy [Policy Text Block]
Statement of Cash Flows [Abstract]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Cash Flows from Operating Activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income/(loss)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Distributions in excess of equity in earnings of unconsolidated affiliates
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
Amortization of financing costs and debt discount/premiums
Amortization of Financing Costs and Discounts
Amortization of intangibles and out-of-market contracts
Amortization of Intangibles and Out of Market Contracts
The aggregate (income) expense recorded in earnings to allocate the cost of out-of-market contracts and intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash (income) expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.
Gains (Losses) on Extinguishment of Debt
Changes in derivative instruments
Increase (Decrease) in Derivative Assets and Liabilities
Changes in other working capital
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Net Cash Provided by Operating Activities
Cash Flows from Investing Activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures
(Increase) decrease in restricted cash
Net Cash (Used in) Provided By Investing Activities
Cash Flows from Financing Activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Distributions and return of capital to NRG
Proceeds from (Repayments of) Debt
Net (Decrease) Increase in Cash and Cash Equivalents
Cash and Cash Equivalents at Beginning of Period
Cash and Cash Equivalents at End of Period
Long-term Debt
Long-term Debt [Text Block]