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Commitments and Contingencies
 9 Months Ended
Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies Development, Engineering and Construction Commitments – At September 30, 2023, an indirect subsidiary of NEP had an approximately $37 million funding commitment related to a natural gas pipeline project which is part of the natural gas pipeline assets NEP entered into an agreement to sell in November 2023. The project is expected to achieve commercial operations in the fourth quarter of 2023.