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Related Party Transactions (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2018 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Due from related parties |  |  | $ 62 |  | $ 62 |  |  | $ 41
Due to Related Parties, Current, Structured Payables |  |  | 177 |  | 177 |  |  | 770
Revenues | [1] |  | 367 | $ 302 | 1,018 | $ 945 |  |
Distributions, primarily to related parties |  |  | (127) | (115) | (326) | (282) |  |
Noncontrolling Interests |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Distributions, primarily to related parties |  |  | (127) | (115) | (326) | (282) |  |
Transportation and Fuel Management Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Revenues |  |  | 2 | 3 | 5 | 6 |  |
NextEra Energy, Inc. [Member] | Noncontrolling Interests |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Related Party Tax Expense, Due from Affiliates, Current |  |  |  |  |  |  | $ 18 |
NextEra Energy, Inc. [Member] | Management Services Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Expenses from transactions with related party |  |  | (3) | (43) | (49) | (122) |  |
NEER | Emerald Breeze Holdings |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Notes payable |  |  | 62 |  | 62 |  |  | 48
NEER | Cash Sweep and Credit Support Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Expenses from transactions with related party |  |  | (2) | $ (2) | (6) | $ (6) |  |
Due from related parties |  |  | 92 |  | 92 |  |  | 298
NEP OpCo [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Supplier Finance Program, Obligation |  |  | 177 |  | $ 177 |  |  | $ 770
NEP OpCo [Member] | Noncontrolling Interests |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Partners' Capital Account, Units, Contributed |  | (100,169) |  |  |  |  |  |
Increase (Decrease) Due To Differences In Value Of Related Party Tax Receivable And Units Received |  | $ 13 |  |  |  |  |  |
NEP OpCo [Member] | NextEra Energy, Inc. [Member] | Management Services Agreement [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Management fee, percent of EBITDA |  |  |  |  | 1.00% |  |  |
Annual management fee |  |  |  |  | $ 4 |  |  |
Related Party Transaction, Additional Management Fee, Threshold, Prior Year EBITDA |  |  |  |  | 4 |  |  |
NextEra Energy Capital Holdings [Member] | Guarantees and Letters of Credit [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Total amount of letters of credit |  |  | $ 2,700 |  | $ 2,700 |  |  |
[1] | Includes related party revenues of $9 million and $9 million for the three months ended September 30, 2023 and 2022, respectively, and $10 million and $21 million for the nine months ended September 30, 2023 and 2022, respectively.

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