XML 160 R142.htm IDEA: XBRL DOCUMENT v3.22.4

Guarantees - Schedule of Maximum Potential Exposure (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Guarantor Obligations
Under 1 Year	$ 5,481
1-3 Years	25
3-5 Years	34
Over 5 Years	95
Guarantees by Remaining Maturity, Total	5,635	$ 4,602
Letters of credit and surety bonds
Guarantor Obligations
Under 1 Year	5,211
1-3 Years	0
3-5 Years	0
Over 5 Years	0
Guarantees by Remaining Maturity, Total	5,211	4,095
Asset sales guarantee obligations
Guarantor Obligations
Under 1 Year	270
1-3 Years	25
3-5 Years	34
Over 5 Years	80
Guarantees by Remaining Maturity, Total	409	414
Other guarantees
Guarantor Obligations
Under 1 Year	0
1-3 Years	0
3-5 Years	0
Over 5 Years	15
Guarantees by Remaining Maturity, Total	$ 15	$ 93

X

- Definition

Maximum potential amount of future payments that the guarantor could be required to make between one to three years of the balance sheet date under the guarantee.

+ References

No definition available.

+ Details

Name:	nrg_GuaranteeMaturityBetweenOneToThreeYears
Namespace Prefix:	nrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum potential amount of future payments that the guarantor could be required to make between three to five years of the balance sheet date under the guarantee.

+ References

No definition available.

+ Details

Name:	nrg_GuaranteeMaturityBetweenThreeToFiveYears
Namespace Prefix:	nrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum potential amount of future payments that the guarantor could be required to make after five years of the balance sheet date under the guarantee.

+ References

No definition available.

+ Details

Name:	nrg_GuaranteeMaturityGreaterThanFiveYears
Namespace Prefix:	nrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Maximum potential amount of future payments that the guarantor could be required to make within one year of the balance sheet date under the guarantee.

+ References

No definition available.

+ Details

Name:	nrg_GuaranteeMaturityLessThanOneYear
Namespace Prefix:	nrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The estimated amount of future payments the guarantor could be required to make under guarantees, indemnities and other contingent liability obligations.

+ References

No definition available.

+ Details

Name:	nrg_GuaranteeObligationsEstimatedExposure
Namespace Prefix:	nrg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

Name:	us-gaap_GuaranteeObligationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=nrg_LettersOfCreditAndSuretyBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=nrg_AssetSalesGuaranteeObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_GuaranteeTypeOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: