Derivative Instruments and Hedging Activity (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of the fair values included in balance sheets

The tables below present NEP's gross derivative positions, based on the total fair value of each derivative instrument, at September 30, 2020 and December 31, 2019, as required by disclosure rules, as well as the location of the net derivative positions, based on the expected timing of future payments, on the condensed consolidated balance sheets.

	September 30, 2020
	Gross Basis				Net Basis
	Assets		Liabilities		Assets		Liabilities
	(millions)
Interest rate contracts	$	53	$	1,073	$	—	$	1,020
Net fair value by balance sheet line item:
Other current assets					$	—
Other non-current assets					—
Derivatives - current							$	19
Derivatives - non-current							1,001
Total derivatives					$	—	$	1,020

	December 31, 2019
	Gross Basis				Net Basis
	Assets		Liabilities		Assets		Liabilities
	(millions)
Interest rate contracts	$	9	$	427	$	—	$	418
Net fair value by balance sheet line item:
Other current assets					$	—
Other non-current assets					—
Derivatives - current							$	1
Derivatives - non-current							417
Total derivatives					$	—	$	418

Schedule of gains (losses) related to interest rate contracts

Gains (losses) related to NEP's interest rate contracts are recorded in the condensed consolidated financial statements as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(millions)
Interest rate contracts:
Gains reclassified from AOCI to interest expense	$	—	$	—	$	—	$	5
Gains (losses) recognized in interest expense	$	131	$	(311)	$	(609)	$	(589)