Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income taxes are calculated for NEP as a single taxpaying corporation for U.S. federal and state income taxes (based on its election to be taxed as a corporation). NEP recognizes in income its applicable ownership share of U.S. income taxes due to the disregarded tax status of substantially all of the U.S. projects under NEP OpCo. Net income or loss attributable to noncontrolling interests includes minimal U.S. taxes. The effective tax rate for the three and nine months ended September 30, 2020 was approximately 11% and 9%, respectively, and for the three and nine months ended September 30, 2019 was approximately 7% and 7%, respectively, and was primarily affected by tax expense (benefit) attributable to noncontrolling interests of approximately $(28) million and $61 million for the three and nine months ended September 30, 2020, respectively, and $38 million and $80 million for the three and nine months ended September 30, 2019, respectively.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.