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Guarantees (Tables) | 12 Months Ended
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Dec. 31, 2022
Guarantees [Abstract] |
Summary of maximum potential exposure that can be estimated by NRG's guarantees, indemnity, and other contingent liability | The following table summarizes the maximum potential exposures that can be estimated for NRG's guarantees, indemnities, and other contingent liabilities by maturity:
| By Remaining Maturity at December 31,
(In millions) | 2022 |  |
Guarantees | Under 1 Year |  | 1-3 Years |  | 3-5 Years |  | Over 5 Years |  | Total |  | 2021 Total
Letters of credit and surety bonds | $ | 5,211 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 5,211 |  |  | $ | 4,095 |
Asset sales guarantee obligations | 270 |  |  | 25 |  |  | 34 |  |  | 80 |  |  | 409 |  |  | 414 |
Other guarantees | — |  |  | — |  |  | — |  |  | 15 |  |  | 15 |  |  | 93 |
Total guarantees | $ | 5,481 |  |  | $ | 25 |  |  | $ | 34 |  |  | $ | 95 |  |  | $ | 5,635 |  |  | $ | 4,602 |

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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12265-110248 + Details
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